clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name TargetInfo.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -mframe-pointer=none -relaxed-aliasing -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -ffunction-sections -fdata-sections -fcoverage-compilation-dir=/build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/lib/CodeGen -resource-dir /usr/lib/llvm-14/lib/clang/14.0.0 -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/lib/CodeGen -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/clang/lib/CodeGen -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/clang/include -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/include -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/llvm/include -D NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/backward -internal-isystem /usr/lib/llvm-14/lib/clang/14.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wno-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir=/build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/lib/CodeGen -fdebug-prefix-map=/build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e=. -ferror-limit 19 -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/scan-build-2021-09-04-040900-46481-1 -x c++ /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/clang/lib/CodeGen/TargetInfo.cpp
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13 | |
14 | #include "TargetInfo.h" |
15 | #include "ABIInfo.h" |
16 | #include "CGBlocks.h" |
17 | #include "CGCXXABI.h" |
18 | #include "CGValue.h" |
19 | #include "CodeGenFunction.h" |
20 | #include "clang/AST/Attr.h" |
21 | #include "clang/AST/RecordLayout.h" |
22 | #include "clang/Basic/CodeGenOptions.h" |
23 | #include "clang/Basic/DiagnosticFrontend.h" |
24 | #include "clang/Basic/Builtins.h" |
25 | #include "clang/CodeGen/CGFunctionInfo.h" |
26 | #include "clang/CodeGen/SwiftCallingConv.h" |
27 | #include "llvm/ADT/SmallBitVector.h" |
28 | #include "llvm/ADT/StringExtras.h" |
29 | #include "llvm/ADT/StringSwitch.h" |
30 | #include "llvm/ADT/Triple.h" |
31 | #include "llvm/ADT/Twine.h" |
32 | #include "llvm/IR/DataLayout.h" |
33 | #include "llvm/IR/IntrinsicsNVPTX.h" |
34 | #include "llvm/IR/IntrinsicsS390.h" |
35 | #include "llvm/IR/Type.h" |
36 | #include "llvm/Support/raw_ostream.h" |
37 | #include <algorithm> // std::sort |
38 | |
39 | using namespace clang; |
40 | using namespace CodeGen; |
41 | |
42 | |
43 | |
44 | |
45 | |
46 | |
47 | |
48 | |
49 | |
50 | |
51 | |
52 | |
53 | |
54 | |
55 | |
56 | static ABIArgInfo coerceToIntArray(QualType Ty, |
57 | ASTContext &Context, |
58 | llvm::LLVMContext &LLVMContext) { |
59 | |
60 | const uint64_t Size = Context.getTypeSize(Ty); |
61 | const uint64_t Alignment = Context.getTypeAlign(Ty); |
62 | llvm::Type *IntType = llvm::Type::getIntNTy(LLVMContext, Alignment); |
63 | const uint64_t NumElements = (Size + Alignment - 1) / Alignment; |
64 | return ABIArgInfo::getDirect(llvm::ArrayType::get(IntType, NumElements)); |
65 | } |
66 | |
67 | static void AssignToArrayRange(CodeGen::CGBuilderTy &Builder, |
68 | llvm::Value *Array, |
69 | llvm::Value *Value, |
70 | unsigned FirstIndex, |
71 | unsigned LastIndex) { |
72 | |
73 | for (unsigned I = FirstIndex; I <= LastIndex; ++I) { |
74 | llvm::Value *Cell = |
75 | Builder.CreateConstInBoundsGEP1_32(Builder.getInt8Ty(), Array, I); |
76 | Builder.CreateAlignedStore(Value, Cell, CharUnits::One()); |
77 | } |
78 | } |
79 | |
80 | static bool isAggregateTypeForABI(QualType T) { |
81 | return !CodeGenFunction::hasScalarEvaluationKind(T) || |
82 | T->isMemberFunctionPointerType(); |
83 | } |
84 | |
85 | ABIArgInfo ABIInfo::getNaturalAlignIndirect(QualType Ty, bool ByVal, |
86 | bool Realign, |
87 | llvm::Type *Padding) const { |
88 | return ABIArgInfo::getIndirect(getContext().getTypeAlignInChars(Ty), ByVal, |
89 | Realign, Padding); |
90 | } |
91 | |
92 | ABIArgInfo |
93 | ABIInfo::getNaturalAlignIndirectInReg(QualType Ty, bool Realign) const { |
94 | return ABIArgInfo::getIndirectInReg(getContext().getTypeAlignInChars(Ty), |
95 | false, Realign); |
96 | } |
97 | |
98 | Address ABIInfo::EmitMSVAArg(CodeGenFunction &CGF, Address VAListAddr, |
99 | QualType Ty) const { |
100 | return Address::invalid(); |
101 | } |
102 | |
103 | bool ABIInfo::isPromotableIntegerTypeForABI(QualType Ty) const { |
104 | if (Ty->isPromotableIntegerType()) |
105 | return true; |
106 | |
107 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
108 | if (EIT->getNumBits() < getContext().getTypeSize(getContext().IntTy)) |
109 | return true; |
110 | |
111 | return false; |
112 | } |
113 | |
114 | ABIInfo::~ABIInfo() {} |
115 | |
116 | |
117 | |
118 | |
119 | |
120 | |
121 | |
122 | |
123 | |
124 | |
125 | |
126 | |
127 | |
128 | |
129 | static bool occupiesMoreThan(CodeGenTypes &cgt, |
130 | ArrayRef<llvm::Type*> scalarTypes, |
131 | unsigned maxAllRegisters) { |
132 | unsigned intCount = 0, fpCount = 0; |
133 | for (llvm::Type *type : scalarTypes) { |
134 | if (type->isPointerTy()) { |
135 | intCount++; |
136 | } else if (auto intTy = dyn_cast<llvm::IntegerType>(type)) { |
137 | auto ptrWidth = cgt.getTarget().getPointerWidth(0); |
138 | intCount += (intTy->getBitWidth() + ptrWidth - 1) / ptrWidth; |
139 | } else { |
140 | assert(type->isVectorTy() || type->isFloatingPointTy()); |
141 | fpCount++; |
142 | } |
143 | } |
144 | |
145 | return (intCount + fpCount > maxAllRegisters); |
146 | } |
147 | |
148 | bool SwiftABIInfo::isLegalVectorTypeForSwift(CharUnits vectorSize, |
149 | llvm::Type *eltTy, |
150 | unsigned numElts) const { |
151 | |
152 | |
153 | return (vectorSize.getQuantity() > 8 && vectorSize.getQuantity() <= 16); |
154 | } |
155 | |
156 | static CGCXXABI::RecordArgABI getRecordArgABI(const RecordType *RT, |
157 | CGCXXABI &CXXABI) { |
158 | const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl()); |
159 | if (!RD) { |
160 | if (!RT->getDecl()->canPassInRegisters()) |
161 | return CGCXXABI::RAA_Indirect; |
162 | return CGCXXABI::RAA_Default; |
163 | } |
164 | return CXXABI.getRecordArgABI(RD); |
165 | } |
166 | |
167 | static CGCXXABI::RecordArgABI getRecordArgABI(QualType T, |
168 | CGCXXABI &CXXABI) { |
169 | const RecordType *RT = T->getAs<RecordType>(); |
170 | if (!RT) |
171 | return CGCXXABI::RAA_Default; |
172 | return getRecordArgABI(RT, CXXABI); |
173 | } |
174 | |
175 | static bool classifyReturnType(const CGCXXABI &CXXABI, CGFunctionInfo &FI, |
176 | const ABIInfo &Info) { |
177 | QualType Ty = FI.getReturnType(); |
178 | |
179 | if (const auto *RT = Ty->getAs<RecordType>()) |
180 | if (!isa<CXXRecordDecl>(RT->getDecl()) && |
181 | !RT->getDecl()->canPassInRegisters()) { |
182 | FI.getReturnInfo() = Info.getNaturalAlignIndirect(Ty); |
183 | return true; |
184 | } |
185 | |
186 | return CXXABI.classifyReturnType(FI); |
187 | } |
188 | |
189 | |
190 | |
191 | static QualType useFirstFieldIfTransparentUnion(QualType Ty) { |
192 | if (const RecordType *UT = Ty->getAsUnionType()) { |
193 | const RecordDecl *UD = UT->getDecl(); |
194 | if (UD->hasAttr<TransparentUnionAttr>()) { |
195 | assert(!UD->field_empty() && "sema created an empty transparent union"); |
196 | return UD->field_begin()->getType(); |
197 | } |
198 | } |
199 | return Ty; |
200 | } |
201 | |
202 | CGCXXABI &ABIInfo::getCXXABI() const { |
203 | return CGT.getCXXABI(); |
204 | } |
205 | |
206 | ASTContext &ABIInfo::getContext() const { |
207 | return CGT.getContext(); |
208 | } |
209 | |
210 | llvm::LLVMContext &ABIInfo::getVMContext() const { |
211 | return CGT.getLLVMContext(); |
212 | } |
213 | |
214 | const llvm::DataLayout &ABIInfo::getDataLayout() const { |
215 | return CGT.getDataLayout(); |
216 | } |
217 | |
218 | const TargetInfo &ABIInfo::getTarget() const { |
219 | return CGT.getTarget(); |
220 | } |
221 | |
222 | const CodeGenOptions &ABIInfo::getCodeGenOpts() const { |
223 | return CGT.getCodeGenOpts(); |
224 | } |
225 | |
226 | bool ABIInfo::isAndroid() const { return getTarget().getTriple().isAndroid(); } |
227 | |
228 | bool ABIInfo::isHomogeneousAggregateBaseType(QualType Ty) const { |
229 | return false; |
230 | } |
231 | |
232 | bool ABIInfo::isHomogeneousAggregateSmallEnough(const Type *Base, |
233 | uint64_t Members) const { |
234 | return false; |
235 | } |
236 | |
237 | LLVM_DUMP_METHOD void ABIArgInfo::dump() const { |
238 | raw_ostream &OS = llvm::errs(); |
239 | OS << "(ABIArgInfo Kind="; |
240 | switch (TheKind) { |
241 | case Direct: |
242 | OS << "Direct Type="; |
243 | if (llvm::Type *Ty = getCoerceToType()) |
244 | Ty->print(OS); |
245 | else |
246 | OS << "null"; |
247 | break; |
248 | case Extend: |
249 | OS << "Extend"; |
250 | break; |
251 | case Ignore: |
252 | OS << "Ignore"; |
253 | break; |
254 | case InAlloca: |
255 | OS << "InAlloca Offset=" << getInAllocaFieldIndex(); |
256 | break; |
257 | case Indirect: |
258 | OS << "Indirect Align=" << getIndirectAlign().getQuantity() |
259 | << " ByVal=" << getIndirectByVal() |
260 | << " Realign=" << getIndirectRealign(); |
261 | break; |
262 | case IndirectAliased: |
263 | OS << "Indirect Align=" << getIndirectAlign().getQuantity() |
264 | << " AadrSpace=" << getIndirectAddrSpace() |
265 | << " Realign=" << getIndirectRealign(); |
266 | break; |
267 | case Expand: |
268 | OS << "Expand"; |
269 | break; |
270 | case CoerceAndExpand: |
271 | OS << "CoerceAndExpand Type="; |
272 | getCoerceAndExpandType()->print(OS); |
273 | break; |
274 | } |
275 | OS << ")\n"; |
276 | } |
277 | |
278 | |
279 | static llvm::Value *emitRoundPointerUpToAlignment(CodeGenFunction &CGF, |
280 | llvm::Value *Ptr, |
281 | CharUnits Align) { |
282 | llvm::Value *PtrAsInt = Ptr; |
283 | |
284 | PtrAsInt = CGF.Builder.CreatePtrToInt(PtrAsInt, CGF.IntPtrTy); |
285 | PtrAsInt = CGF.Builder.CreateAdd(PtrAsInt, |
286 | llvm::ConstantInt::get(CGF.IntPtrTy, Align.getQuantity() - 1)); |
287 | PtrAsInt = CGF.Builder.CreateAnd(PtrAsInt, |
288 | llvm::ConstantInt::get(CGF.IntPtrTy, -Align.getQuantity())); |
289 | PtrAsInt = CGF.Builder.CreateIntToPtr(PtrAsInt, |
290 | Ptr->getType(), |
291 | Ptr->getName() + ".aligned"); |
292 | return PtrAsInt; |
293 | } |
294 | |
295 | |
296 | |
297 | |
298 | |
299 | |
300 | |
301 | |
302 | |
303 | |
304 | |
305 | |
306 | |
307 | |
308 | |
309 | static Address emitVoidPtrDirectVAArg(CodeGenFunction &CGF, |
310 | Address VAListAddr, |
311 | llvm::Type *DirectTy, |
312 | CharUnits DirectSize, |
313 | CharUnits DirectAlign, |
314 | CharUnits SlotSize, |
315 | bool AllowHigherAlign) { |
316 | |
317 | |
318 | if (VAListAddr.getElementType() != CGF.Int8PtrTy) |
319 | VAListAddr = CGF.Builder.CreateElementBitCast(VAListAddr, CGF.Int8PtrTy); |
320 | |
321 | llvm::Value *Ptr = CGF.Builder.CreateLoad(VAListAddr, "argp.cur"); |
322 | |
323 | |
324 | Address Addr = Address::invalid(); |
325 | if (AllowHigherAlign && DirectAlign > SlotSize) { |
326 | Addr = Address(emitRoundPointerUpToAlignment(CGF, Ptr, DirectAlign), |
327 | DirectAlign); |
328 | } else { |
329 | Addr = Address(Ptr, SlotSize); |
330 | } |
331 | |
332 | |
333 | CharUnits FullDirectSize = DirectSize.alignTo(SlotSize); |
334 | Address NextPtr = |
335 | CGF.Builder.CreateConstInBoundsByteGEP(Addr, FullDirectSize, "argp.next"); |
336 | CGF.Builder.CreateStore(NextPtr.getPointer(), VAListAddr); |
337 | |
338 | |
339 | |
340 | if (DirectSize < SlotSize && CGF.CGM.getDataLayout().isBigEndian() && |
341 | !DirectTy->isStructTy()) { |
342 | Addr = CGF.Builder.CreateConstInBoundsByteGEP(Addr, SlotSize - DirectSize); |
343 | } |
344 | |
345 | Addr = CGF.Builder.CreateElementBitCast(Addr, DirectTy); |
346 | return Addr; |
347 | } |
348 | |
349 | |
350 | |
351 | |
352 | |
353 | |
354 | |
355 | |
356 | |
357 | |
358 | |
359 | |
360 | |
361 | |
362 | static Address emitVoidPtrVAArg(CodeGenFunction &CGF, Address VAListAddr, |
363 | QualType ValueTy, bool IsIndirect, |
364 | TypeInfoChars ValueInfo, |
365 | CharUnits SlotSizeAndAlign, |
366 | bool AllowHigherAlign) { |
367 | |
368 | CharUnits DirectSize, DirectAlign; |
369 | if (IsIndirect) { |
370 | DirectSize = CGF.getPointerSize(); |
371 | DirectAlign = CGF.getPointerAlign(); |
372 | } else { |
373 | DirectSize = ValueInfo.Width; |
374 | DirectAlign = ValueInfo.Align; |
375 | } |
376 | |
377 | |
378 | llvm::Type *DirectTy = CGF.ConvertTypeForMem(ValueTy); |
379 | if (IsIndirect) |
380 | DirectTy = DirectTy->getPointerTo(0); |
381 | |
382 | Address Addr = emitVoidPtrDirectVAArg(CGF, VAListAddr, DirectTy, |
383 | DirectSize, DirectAlign, |
384 | SlotSizeAndAlign, |
385 | AllowHigherAlign); |
386 | |
387 | if (IsIndirect) { |
388 | Addr = Address(CGF.Builder.CreateLoad(Addr), ValueInfo.Align); |
389 | } |
390 | |
391 | return Addr; |
392 | |
393 | } |
394 | |
395 | static Address emitMergePHI(CodeGenFunction &CGF, |
396 | Address Addr1, llvm::BasicBlock *Block1, |
397 | Address Addr2, llvm::BasicBlock *Block2, |
398 | const llvm::Twine &Name = "") { |
399 | assert(Addr1.getType() == Addr2.getType()); |
400 | llvm::PHINode *PHI = CGF.Builder.CreatePHI(Addr1.getType(), 2, Name); |
401 | PHI->addIncoming(Addr1.getPointer(), Block1); |
402 | PHI->addIncoming(Addr2.getPointer(), Block2); |
403 | CharUnits Align = std::min(Addr1.getAlignment(), Addr2.getAlignment()); |
404 | return Address(PHI, Align); |
405 | } |
406 | |
407 | TargetCodeGenInfo::~TargetCodeGenInfo() = default; |
408 | |
409 | |
410 | |
411 | unsigned TargetCodeGenInfo::getSizeOfUnwindException() const { |
412 | |
413 | |
414 | |
415 | |
416 | |
417 | |
418 | return 32; |
419 | } |
420 | |
421 | bool TargetCodeGenInfo::isNoProtoCallVariadic(const CallArgList &args, |
422 | const FunctionNoProtoType *fnType) const { |
423 | |
424 | |
425 | |
426 | |
427 | return false; |
428 | } |
429 | |
430 | void |
431 | TargetCodeGenInfo::getDependentLibraryOption(llvm::StringRef Lib, |
432 | llvm::SmallString<24> &Opt) const { |
433 | |
434 | |
435 | |
436 | Opt = "-l"; |
437 | Opt += Lib; |
438 | } |
439 | |
440 | unsigned TargetCodeGenInfo::getOpenCLKernelCallingConv() const { |
441 | |
442 | |
443 | |
444 | |
445 | |
446 | |
447 | |
448 | |
449 | |
450 | |
451 | return llvm::CallingConv::SPIR_KERNEL; |
452 | } |
453 | |
454 | llvm::Constant *TargetCodeGenInfo::getNullPointer(const CodeGen::CodeGenModule &CGM, |
455 | llvm::PointerType *T, QualType QT) const { |
456 | return llvm::ConstantPointerNull::get(T); |
457 | } |
458 | |
459 | LangAS TargetCodeGenInfo::getGlobalVarAddressSpace(CodeGenModule &CGM, |
460 | const VarDecl *D) const { |
461 | assert(!CGM.getLangOpts().OpenCL && |
462 | !(CGM.getLangOpts().CUDA && CGM.getLangOpts().CUDAIsDevice) && |
463 | "Address space agnostic languages only"); |
464 | return D ? D->getType().getAddressSpace() : LangAS::Default; |
465 | } |
466 | |
467 | llvm::Value *TargetCodeGenInfo::performAddrSpaceCast( |
468 | CodeGen::CodeGenFunction &CGF, llvm::Value *Src, LangAS SrcAddr, |
469 | LangAS DestAddr, llvm::Type *DestTy, bool isNonNull) const { |
470 | |
471 | |
472 | if (auto *C = dyn_cast<llvm::Constant>(Src)) |
473 | return performAddrSpaceCast(CGF.CGM, C, SrcAddr, DestAddr, DestTy); |
474 | |
475 | return CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( |
476 | Src, DestTy, Src->hasName() ? Src->getName() + ".ascast" : ""); |
477 | } |
478 | |
479 | llvm::Constant * |
480 | TargetCodeGenInfo::performAddrSpaceCast(CodeGenModule &CGM, llvm::Constant *Src, |
481 | LangAS SrcAddr, LangAS DestAddr, |
482 | llvm::Type *DestTy) const { |
483 | |
484 | |
485 | return llvm::ConstantExpr::getPointerCast(Src, DestTy); |
486 | } |
487 | |
488 | llvm::SyncScope::ID |
489 | TargetCodeGenInfo::getLLVMSyncScopeID(const LangOptions &LangOpts, |
490 | SyncScope Scope, |
491 | llvm::AtomicOrdering Ordering, |
492 | llvm::LLVMContext &Ctx) const { |
493 | return Ctx.getOrInsertSyncScopeID(""); |
494 | } |
495 | |
496 | static bool isEmptyRecord(ASTContext &Context, QualType T, bool AllowArrays); |
497 | |
498 | |
499 | |
500 | static bool isEmptyField(ASTContext &Context, const FieldDecl *FD, |
501 | bool AllowArrays) { |
502 | if (FD->isUnnamedBitfield()) |
503 | return true; |
504 | |
505 | QualType FT = FD->getType(); |
506 | |
507 | |
508 | |
509 | bool WasArray = false; |
510 | if (AllowArrays) |
511 | while (const ConstantArrayType *AT = Context.getAsConstantArrayType(FT)) { |
512 | if (AT->getSize() == 0) |
513 | return true; |
514 | FT = AT->getElementType(); |
515 | |
516 | |
517 | WasArray = true; |
518 | } |
519 | |
520 | const RecordType *RT = FT->getAs<RecordType>(); |
521 | if (!RT) |
522 | return false; |
523 | |
524 | |
525 | |
526 | |
527 | |
528 | |
529 | |
530 | |
531 | |
532 | |
533 | |
534 | if (isa<CXXRecordDecl>(RT->getDecl()) && |
535 | (WasArray || !FD->hasAttr<NoUniqueAddressAttr>())) |
536 | return false; |
537 | |
538 | return isEmptyRecord(Context, FT, AllowArrays); |
539 | } |
540 | |
541 | |
542 | |
543 | |
544 | static bool isEmptyRecord(ASTContext &Context, QualType T, bool AllowArrays) { |
545 | const RecordType *RT = T->getAs<RecordType>(); |
546 | if (!RT) |
547 | return false; |
548 | const RecordDecl *RD = RT->getDecl(); |
549 | if (RD->hasFlexibleArrayMember()) |
550 | return false; |
551 | |
552 | |
553 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
554 | for (const auto &I : CXXRD->bases()) |
555 | if (!isEmptyRecord(Context, I.getType(), true)) |
556 | return false; |
557 | |
558 | for (const auto *I : RD->fields()) |
559 | if (!isEmptyField(Context, I, AllowArrays)) |
560 | return false; |
561 | return true; |
562 | } |
563 | |
564 | |
565 | |
566 | |
567 | |
568 | |
569 | |
570 | |
571 | |
572 | static const Type *isSingleElementStruct(QualType T, ASTContext &Context) { |
573 | const RecordType *RT = T->getAs<RecordType>(); |
574 | if (!RT) |
575 | return nullptr; |
576 | |
577 | const RecordDecl *RD = RT->getDecl(); |
578 | if (RD->hasFlexibleArrayMember()) |
579 | return nullptr; |
580 | |
581 | const Type *Found = nullptr; |
582 | |
583 | |
584 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) { |
585 | for (const auto &I : CXXRD->bases()) { |
586 | |
587 | if (isEmptyRecord(Context, I.getType(), true)) |
588 | continue; |
589 | |
590 | |
591 | if (Found) |
592 | return nullptr; |
593 | |
594 | |
595 | |
596 | Found = isSingleElementStruct(I.getType(), Context); |
597 | if (!Found) |
598 | return nullptr; |
599 | } |
600 | } |
601 | |
602 | |
603 | for (const auto *FD : RD->fields()) { |
604 | QualType FT = FD->getType(); |
605 | |
606 | |
607 | if (isEmptyField(Context, FD, true)) |
608 | continue; |
609 | |
610 | |
611 | |
612 | if (Found) |
613 | return nullptr; |
614 | |
615 | |
616 | while (const ConstantArrayType *AT = Context.getAsConstantArrayType(FT)) { |
617 | if (AT->getSize().getZExtValue() != 1) |
618 | break; |
619 | FT = AT->getElementType(); |
620 | } |
621 | |
622 | if (!isAggregateTypeForABI(FT)) { |
623 | Found = FT.getTypePtr(); |
624 | } else { |
625 | Found = isSingleElementStruct(FT, Context); |
626 | if (!Found) |
627 | return nullptr; |
628 | } |
629 | } |
630 | |
631 | |
632 | |
633 | if (Found && Context.getTypeSize(Found) != Context.getTypeSize(T)) |
634 | return nullptr; |
635 | |
636 | return Found; |
637 | } |
638 | |
639 | namespace { |
640 | Address EmitVAArgInstr(CodeGenFunction &CGF, Address VAListAddr, QualType Ty, |
641 | const ABIArgInfo &AI) { |
642 | |
643 | |
644 | |
645 | |
646 | |
647 | |
648 | |
649 | |
650 | |
651 | llvm::Value *Val; |
652 | |
653 | if (AI.isIndirect()) { |
654 | assert(!AI.getPaddingType() && |
655 | "Unexpected PaddingType seen in arginfo in generic VAArg emitter!"); |
656 | assert( |
657 | !AI.getIndirectRealign() && |
658 | "Unexpected IndirectRealign seen in arginfo in generic VAArg emitter!"); |
659 | |
660 | auto TyInfo = CGF.getContext().getTypeInfoInChars(Ty); |
661 | CharUnits TyAlignForABI = TyInfo.Align; |
662 | |
663 | llvm::Type *BaseTy = |
664 | llvm::PointerType::getUnqual(CGF.ConvertTypeForMem(Ty)); |
665 | llvm::Value *Addr = |
666 | CGF.Builder.CreateVAArg(VAListAddr.getPointer(), BaseTy); |
667 | return Address(Addr, TyAlignForABI); |
668 | } else { |
669 | assert((AI.isDirect() || AI.isExtend()) && |
670 | "Unexpected ArgInfo Kind in generic VAArg emitter!"); |
671 | |
672 | assert(!AI.getInReg() && |
673 | "Unexpected InReg seen in arginfo in generic VAArg emitter!"); |
674 | assert(!AI.getPaddingType() && |
675 | "Unexpected PaddingType seen in arginfo in generic VAArg emitter!"); |
676 | assert(!AI.getDirectOffset() && |
677 | "Unexpected DirectOffset seen in arginfo in generic VAArg emitter!"); |
678 | assert(!AI.getCoerceToType() && |
679 | "Unexpected CoerceToType seen in arginfo in generic VAArg emitter!"); |
680 | |
681 | Address Temp = CGF.CreateMemTemp(Ty, "varet"); |
682 | Val = CGF.Builder.CreateVAArg(VAListAddr.getPointer(), CGF.ConvertType(Ty)); |
683 | CGF.Builder.CreateStore(Val, Temp); |
684 | return Temp; |
685 | } |
686 | } |
687 | |
688 | |
689 | |
690 | |
691 | |
692 | class DefaultABIInfo : public ABIInfo { |
693 | public: |
694 | DefaultABIInfo(CodeGen::CodeGenTypes &CGT) : ABIInfo(CGT) {} |
695 | |
696 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
697 | ABIArgInfo classifyArgumentType(QualType RetTy) const; |
698 | |
699 | void computeInfo(CGFunctionInfo &FI) const override { |
700 | if (!getCXXABI().classifyReturnType(FI)) |
701 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
702 | for (auto &I : FI.arguments()) |
703 | I.info = classifyArgumentType(I.type); |
704 | } |
705 | |
706 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
707 | QualType Ty) const override { |
708 | return EmitVAArgInstr(CGF, VAListAddr, Ty, classifyArgumentType(Ty)); |
709 | } |
710 | }; |
711 | |
712 | class DefaultTargetCodeGenInfo : public TargetCodeGenInfo { |
713 | public: |
714 | DefaultTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT) |
715 | : TargetCodeGenInfo(std::make_unique<DefaultABIInfo>(CGT)) {} |
716 | }; |
717 | |
718 | ABIArgInfo DefaultABIInfo::classifyArgumentType(QualType Ty) const { |
719 | Ty = useFirstFieldIfTransparentUnion(Ty); |
720 | |
721 | if (isAggregateTypeForABI(Ty)) { |
722 | |
723 | |
724 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
725 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
726 | |
727 | return getNaturalAlignIndirect(Ty); |
728 | } |
729 | |
730 | |
731 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
732 | Ty = EnumTy->getDecl()->getIntegerType(); |
733 | |
734 | ASTContext &Context = getContext(); |
735 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
736 | if (EIT->getNumBits() > |
737 | Context.getTypeSize(Context.getTargetInfo().hasInt128Type() |
738 | ? Context.Int128Ty |
739 | : Context.LongLongTy)) |
740 | return getNaturalAlignIndirect(Ty); |
741 | |
742 | return (isPromotableIntegerTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
743 | : ABIArgInfo::getDirect()); |
744 | } |
745 | |
746 | ABIArgInfo DefaultABIInfo::classifyReturnType(QualType RetTy) const { |
747 | if (RetTy->isVoidType()) |
748 | return ABIArgInfo::getIgnore(); |
749 | |
750 | if (isAggregateTypeForABI(RetTy)) |
751 | return getNaturalAlignIndirect(RetTy); |
752 | |
753 | |
754 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
755 | RetTy = EnumTy->getDecl()->getIntegerType(); |
756 | |
757 | if (const auto *EIT = RetTy->getAs<ExtIntType>()) |
758 | if (EIT->getNumBits() > |
759 | getContext().getTypeSize(getContext().getTargetInfo().hasInt128Type() |
760 | ? getContext().Int128Ty |
761 | : getContext().LongLongTy)) |
762 | return getNaturalAlignIndirect(RetTy); |
763 | |
764 | return (isPromotableIntegerTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
765 | : ABIArgInfo::getDirect()); |
766 | } |
767 | |
768 | |
769 | |
770 | |
771 | |
772 | |
773 | |
774 | class WebAssemblyABIInfo final : public SwiftABIInfo { |
775 | public: |
776 | enum ABIKind { |
777 | MVP = 0, |
778 | ExperimentalMV = 1, |
779 | }; |
780 | |
781 | private: |
782 | DefaultABIInfo defaultInfo; |
783 | ABIKind Kind; |
784 | |
785 | public: |
786 | explicit WebAssemblyABIInfo(CodeGen::CodeGenTypes &CGT, ABIKind Kind) |
787 | : SwiftABIInfo(CGT), defaultInfo(CGT), Kind(Kind) {} |
788 | |
789 | private: |
790 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
791 | ABIArgInfo classifyArgumentType(QualType Ty) const; |
792 | |
793 | |
794 | |
795 | |
796 | void computeInfo(CGFunctionInfo &FI) const override { |
797 | if (!getCXXABI().classifyReturnType(FI)) |
798 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
799 | for (auto &Arg : FI.arguments()) |
800 | Arg.info = classifyArgumentType(Arg.type); |
801 | } |
802 | |
803 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
804 | QualType Ty) const override; |
805 | |
806 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars, |
807 | bool asReturnValue) const override { |
808 | return occupiesMoreThan(CGT, scalars, 4); |
809 | } |
810 | |
811 | bool isSwiftErrorInRegister() const override { |
812 | return false; |
813 | } |
814 | }; |
815 | |
816 | class WebAssemblyTargetCodeGenInfo final : public TargetCodeGenInfo { |
817 | public: |
818 | explicit WebAssemblyTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, |
819 | WebAssemblyABIInfo::ABIKind K) |
820 | : TargetCodeGenInfo(std::make_unique<WebAssemblyABIInfo>(CGT, K)) {} |
821 | |
822 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
823 | CodeGen::CodeGenModule &CGM) const override { |
824 | TargetCodeGenInfo::setTargetAttributes(D, GV, CGM); |
825 | if (const auto *FD = dyn_cast_or_null<FunctionDecl>(D)) { |
826 | if (const auto *Attr = FD->getAttr<WebAssemblyImportModuleAttr>()) { |
827 | llvm::Function *Fn = cast<llvm::Function>(GV); |
828 | llvm::AttrBuilder B; |
829 | B.addAttribute("wasm-import-module", Attr->getImportModule()); |
830 | Fn->addFnAttrs(B); |
831 | } |
832 | if (const auto *Attr = FD->getAttr<WebAssemblyImportNameAttr>()) { |
833 | llvm::Function *Fn = cast<llvm::Function>(GV); |
834 | llvm::AttrBuilder B; |
835 | B.addAttribute("wasm-import-name", Attr->getImportName()); |
836 | Fn->addFnAttrs(B); |
837 | } |
838 | if (const auto *Attr = FD->getAttr<WebAssemblyExportNameAttr>()) { |
839 | llvm::Function *Fn = cast<llvm::Function>(GV); |
840 | llvm::AttrBuilder B; |
841 | B.addAttribute("wasm-export-name", Attr->getExportName()); |
842 | Fn->addFnAttrs(B); |
843 | } |
844 | } |
845 | |
846 | if (auto *FD = dyn_cast_or_null<FunctionDecl>(D)) { |
847 | llvm::Function *Fn = cast<llvm::Function>(GV); |
848 | if (!FD->doesThisDeclarationHaveABody() && !FD->hasPrototype()) |
849 | Fn->addFnAttr("no-prototype"); |
850 | } |
851 | } |
852 | }; |
853 | |
854 | |
855 | ABIArgInfo WebAssemblyABIInfo::classifyArgumentType(QualType Ty) const { |
856 | Ty = useFirstFieldIfTransparentUnion(Ty); |
857 | |
858 | if (isAggregateTypeForABI(Ty)) { |
859 | |
860 | |
861 | if (auto RAA = getRecordArgABI(Ty, getCXXABI())) |
862 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
863 | |
864 | if (isEmptyRecord(getContext(), Ty, true)) |
865 | return ABIArgInfo::getIgnore(); |
866 | |
867 | |
868 | |
869 | if (const Type *SeltTy = isSingleElementStruct(Ty, getContext())) |
870 | return ABIArgInfo::getDirect(CGT.ConvertType(QualType(SeltTy, 0))); |
871 | |
872 | if (Kind == ABIKind::ExperimentalMV) { |
873 | const RecordType *RT = Ty->getAs<RecordType>(); |
874 | assert(RT); |
875 | bool HasBitField = false; |
876 | for (auto *Field : RT->getDecl()->fields()) { |
877 | if (Field->isBitField()) { |
878 | HasBitField = true; |
879 | break; |
880 | } |
881 | } |
882 | if (!HasBitField) |
883 | return ABIArgInfo::getExpand(); |
884 | } |
885 | } |
886 | |
887 | |
888 | return defaultInfo.classifyArgumentType(Ty); |
889 | } |
890 | |
891 | ABIArgInfo WebAssemblyABIInfo::classifyReturnType(QualType RetTy) const { |
892 | if (isAggregateTypeForABI(RetTy)) { |
893 | |
894 | |
895 | if (!getRecordArgABI(RetTy, getCXXABI())) { |
896 | |
897 | if (isEmptyRecord(getContext(), RetTy, true)) |
898 | return ABIArgInfo::getIgnore(); |
899 | |
900 | |
901 | |
902 | if (const Type *SeltTy = isSingleElementStruct(RetTy, getContext())) |
903 | return ABIArgInfo::getDirect(CGT.ConvertType(QualType(SeltTy, 0))); |
904 | |
905 | if (Kind == ABIKind::ExperimentalMV) |
906 | return ABIArgInfo::getDirect(); |
907 | } |
908 | } |
909 | |
910 | |
911 | return defaultInfo.classifyReturnType(RetTy); |
912 | } |
913 | |
914 | Address WebAssemblyABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
915 | QualType Ty) const { |
916 | bool IsIndirect = isAggregateTypeForABI(Ty) && |
917 | !isEmptyRecord(getContext(), Ty, true) && |
918 | !isSingleElementStruct(Ty, getContext()); |
919 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, IsIndirect, |
920 | getContext().getTypeInfoInChars(Ty), |
921 | CharUnits::fromQuantity(4), |
922 | true); |
923 | } |
924 | |
925 | |
926 | |
927 | |
928 | |
929 | |
930 | |
931 | |
932 | class PNaClABIInfo : public ABIInfo { |
933 | public: |
934 | PNaClABIInfo(CodeGen::CodeGenTypes &CGT) : ABIInfo(CGT) {} |
935 | |
936 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
937 | ABIArgInfo classifyArgumentType(QualType RetTy) const; |
938 | |
939 | void computeInfo(CGFunctionInfo &FI) const override; |
940 | Address EmitVAArg(CodeGenFunction &CGF, |
941 | Address VAListAddr, QualType Ty) const override; |
942 | }; |
943 | |
944 | class PNaClTargetCodeGenInfo : public TargetCodeGenInfo { |
945 | public: |
946 | PNaClTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT) |
947 | : TargetCodeGenInfo(std::make_unique<PNaClABIInfo>(CGT)) {} |
948 | }; |
949 | |
950 | void PNaClABIInfo::computeInfo(CGFunctionInfo &FI) const { |
951 | if (!getCXXABI().classifyReturnType(FI)) |
952 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
953 | |
954 | for (auto &I : FI.arguments()) |
955 | I.info = classifyArgumentType(I.type); |
956 | } |
957 | |
958 | Address PNaClABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
959 | QualType Ty) const { |
960 | |
961 | |
962 | |
963 | |
964 | |
965 | |
966 | return EmitVAArgInstr(CGF, VAListAddr, Ty, ABIArgInfo::getDirect()); |
967 | } |
968 | |
969 | |
970 | ABIArgInfo PNaClABIInfo::classifyArgumentType(QualType Ty) const { |
971 | if (isAggregateTypeForABI(Ty)) { |
972 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
973 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
974 | return getNaturalAlignIndirect(Ty); |
975 | } else if (const EnumType *EnumTy = Ty->getAs<EnumType>()) { |
976 | |
977 | Ty = EnumTy->getDecl()->getIntegerType(); |
978 | } else if (Ty->isFloatingType()) { |
979 | |
980 | return ABIArgInfo::getDirect(); |
981 | } else if (const auto *EIT = Ty->getAs<ExtIntType>()) { |
982 | |
983 | if (EIT->getNumBits() > 64) |
984 | return getNaturalAlignIndirect(Ty); |
985 | return ABIArgInfo::getDirect(); |
986 | } |
987 | |
988 | return (isPromotableIntegerTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
989 | : ABIArgInfo::getDirect()); |
990 | } |
991 | |
992 | ABIArgInfo PNaClABIInfo::classifyReturnType(QualType RetTy) const { |
993 | if (RetTy->isVoidType()) |
994 | return ABIArgInfo::getIgnore(); |
995 | |
996 | |
997 | if (isAggregateTypeForABI(RetTy)) |
998 | return getNaturalAlignIndirect(RetTy); |
999 | |
1000 | |
1001 | if (const auto *EIT = RetTy->getAs<ExtIntType>()) { |
1002 | if (EIT->getNumBits() > 64) |
1003 | return getNaturalAlignIndirect(RetTy); |
1004 | return ABIArgInfo::getDirect(); |
1005 | } |
1006 | |
1007 | |
1008 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
1009 | RetTy = EnumTy->getDecl()->getIntegerType(); |
1010 | |
1011 | return (isPromotableIntegerTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
1012 | : ABIArgInfo::getDirect()); |
1013 | } |
1014 | |
1015 | |
1016 | bool IsX86_MMXType(llvm::Type *IRType) { |
1017 | |
1018 | return IRType->isVectorTy() && IRType->getPrimitiveSizeInBits() == 64 && |
1019 | cast<llvm::VectorType>(IRType)->getElementType()->isIntegerTy() && |
1020 | IRType->getScalarSizeInBits() != 64; |
1021 | } |
1022 | |
1023 | static llvm::Type* X86AdjustInlineAsmType(CodeGen::CodeGenFunction &CGF, |
1024 | StringRef Constraint, |
1025 | llvm::Type* Ty) { |
1026 | bool IsMMXCons = llvm::StringSwitch<bool>(Constraint) |
1027 | .Cases("y", "&y", "^Ym", true) |
1028 | .Default(false); |
1029 | if (IsMMXCons && Ty->isVectorTy()) { |
1030 | if (cast<llvm::VectorType>(Ty)->getPrimitiveSizeInBits().getFixedSize() != |
1031 | 64) { |
1032 | |
1033 | return nullptr; |
1034 | } |
1035 | |
1036 | return llvm::Type::getX86_MMXTy(CGF.getLLVMContext()); |
1037 | } |
1038 | |
1039 | |
1040 | return Ty; |
1041 | } |
1042 | |
1043 | |
1044 | |
1045 | static bool isX86VectorTypeForVectorCall(ASTContext &Context, QualType Ty) { |
1046 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) { |
1047 | if (BT->isFloatingPoint() && BT->getKind() != BuiltinType::Half) { |
1048 | if (BT->getKind() == BuiltinType::LongDouble) { |
1049 | if (&Context.getTargetInfo().getLongDoubleFormat() == |
1050 | &llvm::APFloat::x87DoubleExtended()) |
1051 | return false; |
1052 | } |
1053 | return true; |
1054 | } |
1055 | } else if (const VectorType *VT = Ty->getAs<VectorType>()) { |
1056 | |
1057 | |
1058 | unsigned VecSize = Context.getTypeSize(VT); |
1059 | if (VecSize == 128 || VecSize == 256 || VecSize == 512) |
1060 | return true; |
1061 | } |
1062 | return false; |
1063 | } |
1064 | |
1065 | |
1066 | |
1067 | static bool isX86VectorCallAggregateSmallEnough(uint64_t NumMembers) { |
1068 | return NumMembers <= 4; |
1069 | } |
1070 | |
1071 | |
1072 | static ABIArgInfo getDirectX86Hva(llvm::Type* T = nullptr) { |
1073 | auto AI = ABIArgInfo::getDirect(T); |
1074 | AI.setInReg(true); |
1075 | AI.setCanBeFlattened(false); |
1076 | return AI; |
1077 | } |
1078 | |
1079 | |
1080 | |
1081 | |
1082 | |
1083 | |
1084 | struct CCState { |
1085 | CCState(CGFunctionInfo &FI) |
1086 | : IsPreassigned(FI.arg_size()), CC(FI.getCallingConvention()) {} |
1087 | |
1088 | llvm::SmallBitVector IsPreassigned; |
1089 | unsigned CC = CallingConv::CC_C; |
1090 | unsigned FreeRegs = 0; |
1091 | unsigned FreeSSERegs = 0; |
1092 | }; |
1093 | |
1094 | |
1095 | class X86_32ABIInfo : public SwiftABIInfo { |
1096 | enum Class { |
1097 | Integer, |
1098 | Float |
1099 | }; |
1100 | |
1101 | static const unsigned MinABIStackAlignInBytes = 4; |
1102 | |
1103 | bool IsDarwinVectorABI; |
1104 | bool IsRetSmallStructInRegABI; |
1105 | bool IsWin32StructABI; |
1106 | bool IsSoftFloatABI; |
1107 | bool IsMCUABI; |
1108 | bool IsLinuxABI; |
1109 | unsigned DefaultNumRegisterParameters; |
1110 | |
1111 | static bool isRegisterSize(unsigned Size) { |
1112 | return (Size == 8 || Size == 16 || Size == 32 || Size == 64); |
1113 | } |
1114 | |
1115 | bool isHomogeneousAggregateBaseType(QualType Ty) const override { |
1116 | |
1117 | return isX86VectorTypeForVectorCall(getContext(), Ty); |
1118 | } |
1119 | |
1120 | bool isHomogeneousAggregateSmallEnough(const Type *Ty, |
1121 | uint64_t NumMembers) const override { |
1122 | |
1123 | return isX86VectorCallAggregateSmallEnough(NumMembers); |
1124 | } |
1125 | |
1126 | bool shouldReturnTypeInRegister(QualType Ty, ASTContext &Context) const; |
1127 | |
1128 | |
1129 | |
1130 | ABIArgInfo getIndirectResult(QualType Ty, bool ByVal, CCState &State) const; |
1131 | |
1132 | ABIArgInfo getIndirectReturnResult(QualType Ty, CCState &State) const; |
1133 | |
1134 | |
1135 | unsigned getTypeStackAlignInBytes(QualType Ty, unsigned Align) const; |
1136 | |
1137 | Class classify(QualType Ty) const; |
1138 | ABIArgInfo classifyReturnType(QualType RetTy, CCState &State) const; |
1139 | ABIArgInfo classifyArgumentType(QualType RetTy, CCState &State) const; |
1140 | |
1141 | |
1142 | |
1143 | bool updateFreeRegs(QualType Ty, CCState &State) const; |
1144 | |
1145 | bool shouldAggregateUseDirect(QualType Ty, CCState &State, bool &InReg, |
1146 | bool &NeedsPadding) const; |
1147 | bool shouldPrimitiveUseInReg(QualType Ty, CCState &State) const; |
1148 | |
1149 | bool canExpandIndirectArgument(QualType Ty) const; |
1150 | |
1151 | |
1152 | |
1153 | void rewriteWithInAlloca(CGFunctionInfo &FI) const; |
1154 | |
1155 | void addFieldToArgStruct(SmallVector<llvm::Type *, 6> &FrameFields, |
1156 | CharUnits &StackOffset, ABIArgInfo &Info, |
1157 | QualType Type) const; |
1158 | void runVectorCallFirstPass(CGFunctionInfo &FI, CCState &State) const; |
1159 | |
1160 | public: |
1161 | |
1162 | void computeInfo(CGFunctionInfo &FI) const override; |
1163 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
1164 | QualType Ty) const override; |
1165 | |
1166 | X86_32ABIInfo(CodeGen::CodeGenTypes &CGT, bool DarwinVectorABI, |
1167 | bool RetSmallStructInRegABI, bool Win32StructABI, |
1168 | unsigned NumRegisterParameters, bool SoftFloatABI) |
1169 | : SwiftABIInfo(CGT), IsDarwinVectorABI(DarwinVectorABI), |
1170 | IsRetSmallStructInRegABI(RetSmallStructInRegABI), |
1171 | IsWin32StructABI(Win32StructABI), IsSoftFloatABI(SoftFloatABI), |
1172 | IsMCUABI(CGT.getTarget().getTriple().isOSIAMCU()), |
1173 | IsLinuxABI(CGT.getTarget().getTriple().isOSLinux()), |
1174 | DefaultNumRegisterParameters(NumRegisterParameters) {} |
1175 | |
1176 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars, |
1177 | bool asReturnValue) const override { |
1178 | |
1179 | |
1180 | |
1181 | |
1182 | return occupiesMoreThan(CGT, scalars, 3); |
1183 | } |
1184 | |
1185 | bool isSwiftErrorInRegister() const override { |
1186 | |
1187 | return false; |
1188 | } |
1189 | }; |
1190 | |
1191 | class X86_32TargetCodeGenInfo : public TargetCodeGenInfo { |
1192 | public: |
1193 | X86_32TargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, bool DarwinVectorABI, |
1194 | bool RetSmallStructInRegABI, bool Win32StructABI, |
1195 | unsigned NumRegisterParameters, bool SoftFloatABI) |
1196 | : TargetCodeGenInfo(std::make_unique<X86_32ABIInfo>( |
1197 | CGT, DarwinVectorABI, RetSmallStructInRegABI, Win32StructABI, |
1198 | NumRegisterParameters, SoftFloatABI)) {} |
1199 | |
1200 | static bool isStructReturnInRegABI( |
1201 | const llvm::Triple &Triple, const CodeGenOptions &Opts); |
1202 | |
1203 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
1204 | CodeGen::CodeGenModule &CGM) const override; |
1205 | |
1206 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &CGM) const override { |
1207 | |
1208 | if (CGM.getTarget().getTriple().isOSDarwin()) return 5; |
1209 | return 4; |
1210 | } |
1211 | |
1212 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
1213 | llvm::Value *Address) const override; |
1214 | |
1215 | llvm::Type* adjustInlineAsmType(CodeGen::CodeGenFunction &CGF, |
1216 | StringRef Constraint, |
1217 | llvm::Type* Ty) const override { |
1218 | return X86AdjustInlineAsmType(CGF, Constraint, Ty); |
1219 | } |
1220 | |
1221 | void addReturnRegisterOutputs(CodeGenFunction &CGF, LValue ReturnValue, |
1222 | std::string &Constraints, |
1223 | std::vector<llvm::Type *> &ResultRegTypes, |
1224 | std::vector<llvm::Type *> &ResultTruncRegTypes, |
1225 | std::vector<LValue> &ResultRegDests, |
1226 | std::string &AsmString, |
1227 | unsigned NumOutputs) const override; |
1228 | |
1229 | llvm::Constant * |
1230 | getUBSanFunctionSignature(CodeGen::CodeGenModule &CGM) const override { |
1231 | unsigned Sig = (0xeb << 0) | |
1232 | (0x06 << 8) | |
1233 | ('v' << 16) | |
1234 | ('2' << 24); |
1235 | return llvm::ConstantInt::get(CGM.Int32Ty, Sig); |
1236 | } |
1237 | |
1238 | StringRef getARCRetainAutoreleasedReturnValueMarker() const override { |
1239 | return "movl\t%ebp, %ebp" |
1240 | "\t\t// marker for objc_retainAutoreleaseReturnValue"; |
1241 | } |
1242 | }; |
1243 | |
1244 | } |
1245 | |
1246 | |
1247 | |
1248 | |
1249 | |
1250 | |
1251 | |
1252 | |
1253 | |
1254 | static void rewriteInputConstraintReferences(unsigned FirstIn, |
1255 | unsigned NumNewOuts, |
1256 | std::string &AsmString) { |
1257 | std::string Buf; |
1258 | llvm::raw_string_ostream OS(Buf); |
1259 | size_t Pos = 0; |
1260 | while (Pos < AsmString.size()) { |
1261 | size_t DollarStart = AsmString.find('$', Pos); |
1262 | if (DollarStart == std::string::npos) |
1263 | DollarStart = AsmString.size(); |
1264 | size_t DollarEnd = AsmString.find_first_not_of('$', DollarStart); |
1265 | if (DollarEnd == std::string::npos) |
1266 | DollarEnd = AsmString.size(); |
1267 | OS << StringRef(&AsmString[Pos], DollarEnd - Pos); |
1268 | Pos = DollarEnd; |
1269 | size_t NumDollars = DollarEnd - DollarStart; |
1270 | if (NumDollars % 2 != 0 && Pos < AsmString.size()) { |
1271 | |
1272 | size_t DigitStart = Pos; |
1273 | if (AsmString[DigitStart] == '{') { |
1274 | OS << '{'; |
1275 | ++DigitStart; |
1276 | } |
1277 | size_t DigitEnd = AsmString.find_first_not_of("0123456789", DigitStart); |
1278 | if (DigitEnd == std::string::npos) |
1279 | DigitEnd = AsmString.size(); |
1280 | StringRef OperandStr(&AsmString[DigitStart], DigitEnd - DigitStart); |
1281 | unsigned OperandIndex; |
1282 | if (!OperandStr.getAsInteger(10, OperandIndex)) { |
1283 | if (OperandIndex >= FirstIn) |
1284 | OperandIndex += NumNewOuts; |
1285 | OS << OperandIndex; |
1286 | } else { |
1287 | OS << OperandStr; |
1288 | } |
1289 | Pos = DigitEnd; |
1290 | } |
1291 | } |
1292 | AsmString = std::move(OS.str()); |
1293 | } |
1294 | |
1295 | |
1296 | void X86_32TargetCodeGenInfo::addReturnRegisterOutputs( |
1297 | CodeGenFunction &CGF, LValue ReturnSlot, std::string &Constraints, |
1298 | std::vector<llvm::Type *> &ResultRegTypes, |
1299 | std::vector<llvm::Type *> &ResultTruncRegTypes, |
1300 | std::vector<LValue> &ResultRegDests, std::string &AsmString, |
1301 | unsigned NumOutputs) const { |
1302 | uint64_t RetWidth = CGF.getContext().getTypeSize(ReturnSlot.getType()); |
1303 | |
1304 | |
1305 | |
1306 | if (!Constraints.empty()) |
1307 | Constraints += ','; |
1308 | if (RetWidth <= 32) { |
1309 | Constraints += "={eax}"; |
1310 | ResultRegTypes.push_back(CGF.Int32Ty); |
1311 | } else { |
1312 | |
1313 | Constraints += "=A"; |
1314 | ResultRegTypes.push_back(CGF.Int64Ty); |
1315 | } |
1316 | |
1317 | |
1318 | llvm::Type *CoerceTy = llvm::IntegerType::get(CGF.getLLVMContext(), RetWidth); |
1319 | ResultTruncRegTypes.push_back(CoerceTy); |
1320 | |
1321 | |
1322 | ReturnSlot.setAddress(CGF.Builder.CreateBitCast(ReturnSlot.getAddress(CGF), |
1323 | CoerceTy->getPointerTo())); |
1324 | ResultRegDests.push_back(ReturnSlot); |
1325 | |
1326 | rewriteInputConstraintReferences(NumOutputs, 1, AsmString); |
1327 | } |
1328 | |
1329 | |
1330 | |
1331 | bool X86_32ABIInfo::shouldReturnTypeInRegister(QualType Ty, |
1332 | ASTContext &Context) const { |
1333 | uint64_t Size = Context.getTypeSize(Ty); |
1334 | |
1335 | |
1336 | |
1337 | if ((IsMCUABI && Size > 64) || (!IsMCUABI && !isRegisterSize(Size))) |
1338 | return false; |
1339 | |
1340 | if (Ty->isVectorType()) { |
1341 | |
1342 | |
1343 | if (Size == 64 || Size == 128) |
1344 | return false; |
1345 | |
1346 | return true; |
1347 | } |
1348 | |
1349 | |
1350 | |
1351 | if (Ty->getAs<BuiltinType>() || Ty->hasPointerRepresentation() || |
1352 | Ty->isAnyComplexType() || Ty->isEnumeralType() || |
1353 | Ty->isBlockPointerType() || Ty->isMemberPointerType()) |
1354 | return true; |
1355 | |
1356 | |
1357 | if (const ConstantArrayType *AT = Context.getAsConstantArrayType(Ty)) |
1358 | return shouldReturnTypeInRegister(AT->getElementType(), Context); |
1359 | |
1360 | |
1361 | const RecordType *RT = Ty->getAs<RecordType>(); |
1362 | if (!RT) return false; |
1363 | |
1364 | |
1365 | |
1366 | |
1367 | |
1368 | for (const auto *FD : RT->getDecl()->fields()) { |
1369 | |
1370 | if (isEmptyField(Context, FD, true)) |
1371 | continue; |
1372 | |
1373 | |
1374 | if (!shouldReturnTypeInRegister(FD->getType(), Context)) |
1375 | return false; |
1376 | } |
1377 | return true; |
1378 | } |
1379 | |
1380 | static bool is32Or64BitBasicType(QualType Ty, ASTContext &Context) { |
1381 | |
1382 | if (const ComplexType *CTy = Ty->getAs<ComplexType>()) |
1383 | Ty = CTy->getElementType(); |
1384 | |
1385 | |
1386 | |
1387 | |
1388 | if (!Ty->getAs<BuiltinType>() && !Ty->hasPointerRepresentation() && |
1389 | !Ty->isEnumeralType() && !Ty->isBlockPointerType()) |
1390 | return false; |
1391 | |
1392 | uint64_t Size = Context.getTypeSize(Ty); |
1393 | return Size == 32 || Size == 64; |
1394 | } |
1395 | |
1396 | static bool addFieldSizes(ASTContext &Context, const RecordDecl *RD, |
1397 | uint64_t &Size) { |
1398 | for (const auto *FD : RD->fields()) { |
1399 | |
1400 | |
1401 | |
1402 | if (!is32Or64BitBasicType(FD->getType(), Context)) |
1403 | return false; |
1404 | |
1405 | |
1406 | |
1407 | |
1408 | if (FD->isBitField()) |
1409 | return false; |
1410 | |
1411 | Size += Context.getTypeSize(FD->getType()); |
1412 | } |
1413 | return true; |
1414 | } |
1415 | |
1416 | static bool addBaseAndFieldSizes(ASTContext &Context, const CXXRecordDecl *RD, |
1417 | uint64_t &Size) { |
1418 | |
1419 | for (const CXXBaseSpecifier &Base : RD->bases()) { |
1420 | if (!addBaseAndFieldSizes(Context, Base.getType()->getAsCXXRecordDecl(), |
1421 | Size)) |
1422 | return false; |
1423 | } |
1424 | if (!addFieldSizes(Context, RD, Size)) |
1425 | return false; |
1426 | return true; |
1427 | } |
1428 | |
1429 | |
1430 | |
1431 | |
1432 | |
1433 | bool X86_32ABIInfo::canExpandIndirectArgument(QualType Ty) const { |
1434 | |
1435 | const RecordType *RT = Ty->getAs<RecordType>(); |
1436 | if (!RT) |
1437 | return false; |
1438 | const RecordDecl *RD = RT->getDecl(); |
1439 | uint64_t Size = 0; |
1440 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) { |
1441 | if (!IsWin32StructABI) { |
1442 | |
1443 | |
1444 | if (!CXXRD->isCLike()) |
1445 | return false; |
1446 | } else { |
1447 | |
1448 | if (CXXRD->isDynamicClass()) |
1449 | return false; |
1450 | } |
1451 | if (!addBaseAndFieldSizes(getContext(), CXXRD, Size)) |
1452 | return false; |
1453 | } else { |
1454 | if (!addFieldSizes(getContext(), RD, Size)) |
1455 | return false; |
1456 | } |
1457 | |
1458 | |
1459 | return Size == getContext().getTypeSize(Ty); |
1460 | } |
1461 | |
1462 | ABIArgInfo X86_32ABIInfo::getIndirectReturnResult(QualType RetTy, CCState &State) const { |
1463 | |
1464 | |
1465 | if (State.FreeRegs) { |
1466 | --State.FreeRegs; |
1467 | if (!IsMCUABI) |
1468 | return getNaturalAlignIndirectInReg(RetTy); |
1469 | } |
1470 | return getNaturalAlignIndirect(RetTy, false); |
1471 | } |
1472 | |
1473 | ABIArgInfo X86_32ABIInfo::classifyReturnType(QualType RetTy, |
1474 | CCState &State) const { |
1475 | if (RetTy->isVoidType()) |
1476 | return ABIArgInfo::getIgnore(); |
1477 | |
1478 | const Type *Base = nullptr; |
1479 | uint64_t NumElts = 0; |
1480 | if ((State.CC == llvm::CallingConv::X86_VectorCall || |
1481 | State.CC == llvm::CallingConv::X86_RegCall) && |
1482 | isHomogeneousAggregate(RetTy, Base, NumElts)) { |
1483 | |
1484 | return ABIArgInfo::getDirect(); |
1485 | } |
1486 | |
1487 | if (const VectorType *VT = RetTy->getAs<VectorType>()) { |
1488 | |
1489 | if (IsDarwinVectorABI) { |
1490 | uint64_t Size = getContext().getTypeSize(RetTy); |
1491 | |
1492 | |
1493 | |
1494 | |
1495 | if (Size == 128) |
1496 | return ABIArgInfo::getDirect(llvm::FixedVectorType::get( |
1497 | llvm::Type::getInt64Ty(getVMContext()), 2)); |
1498 | |
1499 | |
1500 | |
1501 | if ((Size == 8 || Size == 16 || Size == 32) || |
1502 | (Size == 64 && VT->getNumElements() == 1)) |
1503 | return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(), |
1504 | Size)); |
1505 | |
1506 | return getIndirectReturnResult(RetTy, State); |
1507 | } |
1508 | |
1509 | return ABIArgInfo::getDirect(); |
1510 | } |
1511 | |
1512 | if (isAggregateTypeForABI(RetTy)) { |
1513 | if (const RecordType *RT = RetTy->getAs<RecordType>()) { |
1514 | |
1515 | if (RT->getDecl()->hasFlexibleArrayMember()) |
1516 | return getIndirectReturnResult(RetTy, State); |
1517 | } |
1518 | |
1519 | |
1520 | if (!IsRetSmallStructInRegABI && !RetTy->isAnyComplexType()) |
1521 | return getIndirectReturnResult(RetTy, State); |
1522 | |
1523 | |
1524 | if (isEmptyRecord(getContext(), RetTy, true)) |
1525 | return ABIArgInfo::getIgnore(); |
1526 | |
1527 | |
1528 | if (const ComplexType *CT = RetTy->getAs<ComplexType>()) { |
1529 | QualType ET = getContext().getCanonicalType(CT->getElementType()); |
1530 | if (ET->isFloat16Type()) |
1531 | return ABIArgInfo::getDirect(llvm::FixedVectorType::get( |
1532 | llvm::Type::getHalfTy(getVMContext()), 2)); |
1533 | } |
1534 | |
1535 | |
1536 | |
1537 | if (shouldReturnTypeInRegister(RetTy, getContext())) { |
1538 | uint64_t Size = getContext().getTypeSize(RetTy); |
1539 | |
1540 | |
1541 | |
1542 | |
1543 | |
1544 | |
1545 | if (const Type *SeltTy = isSingleElementStruct(RetTy, getContext())) |
1546 | if ((!IsWin32StructABI && SeltTy->isRealFloatingType()) |
1547 | || SeltTy->hasPointerRepresentation()) |
1548 | return ABIArgInfo::getDirect(CGT.ConvertType(QualType(SeltTy, 0))); |
1549 | |
1550 | |
1551 | |
1552 | return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(),Size)); |
1553 | } |
1554 | |
1555 | return getIndirectReturnResult(RetTy, State); |
1556 | } |
1557 | |
1558 | |
1559 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
1560 | RetTy = EnumTy->getDecl()->getIntegerType(); |
1561 | |
1562 | if (const auto *EIT = RetTy->getAs<ExtIntType>()) |
1563 | if (EIT->getNumBits() > 64) |
1564 | return getIndirectReturnResult(RetTy, State); |
1565 | |
1566 | return (isPromotableIntegerTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
1567 | : ABIArgInfo::getDirect()); |
1568 | } |
1569 | |
1570 | static bool isSIMDVectorType(ASTContext &Context, QualType Ty) { |
1571 | return Ty->getAs<VectorType>() && Context.getTypeSize(Ty) == 128; |
1572 | } |
1573 | |
1574 | static bool isRecordWithSIMDVectorType(ASTContext &Context, QualType Ty) { |
1575 | const RecordType *RT = Ty->getAs<RecordType>(); |
1576 | if (!RT) |
1577 | return 0; |
1578 | const RecordDecl *RD = RT->getDecl(); |
1579 | |
1580 | |
1581 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
1582 | for (const auto &I : CXXRD->bases()) |
1583 | if (!isRecordWithSIMDVectorType(Context, I.getType())) |
1584 | return false; |
1585 | |
1586 | for (const auto *i : RD->fields()) { |
1587 | QualType FT = i->getType(); |
1588 | |
1589 | if (isSIMDVectorType(Context, FT)) |
1590 | return true; |
1591 | |
1592 | if (isRecordWithSIMDVectorType(Context, FT)) |
1593 | return true; |
1594 | } |
1595 | |
1596 | return false; |
1597 | } |
1598 | |
1599 | unsigned X86_32ABIInfo::getTypeStackAlignInBytes(QualType Ty, |
1600 | unsigned Align) const { |
1601 | |
1602 | |
1603 | if (Align <= MinABIStackAlignInBytes) |
1604 | return 0; |
1605 | |
1606 | if (IsLinuxABI) { |
1607 | |
1608 | |
1609 | |
1610 | |
1611 | if (Ty->isVectorType() && (Align == 16 || Align == 32 || Align == 64)) |
1612 | return Align; |
1613 | } |
1614 | |
1615 | if (!IsDarwinVectorABI) { |
1616 | |
1617 | return MinABIStackAlignInBytes; |
1618 | } |
1619 | |
1620 | |
1621 | if (Align >= 16 && (isSIMDVectorType(getContext(), Ty) || |
1622 | isRecordWithSIMDVectorType(getContext(), Ty))) |
1623 | return 16; |
1624 | |
1625 | return MinABIStackAlignInBytes; |
1626 | } |
1627 | |
1628 | ABIArgInfo X86_32ABIInfo::getIndirectResult(QualType Ty, bool ByVal, |
1629 | CCState &State) const { |
1630 | if (!ByVal) { |
1631 | if (State.FreeRegs) { |
1632 | --State.FreeRegs; |
1633 | if (!IsMCUABI) |
1634 | return getNaturalAlignIndirectInReg(Ty); |
1635 | } |
1636 | return getNaturalAlignIndirect(Ty, false); |
1637 | } |
1638 | |
1639 | |
1640 | unsigned TypeAlign = getContext().getTypeAlign(Ty) / 8; |
1641 | unsigned StackAlign = getTypeStackAlignInBytes(Ty, TypeAlign); |
1642 | if (StackAlign == 0) |
1643 | return ABIArgInfo::getIndirect(CharUnits::fromQuantity(4), true); |
1644 | |
1645 | |
1646 | |
1647 | bool Realign = TypeAlign > StackAlign; |
1648 | return ABIArgInfo::getIndirect(CharUnits::fromQuantity(StackAlign), |
1649 | true, Realign); |
1650 | } |
1651 | |
1652 | X86_32ABIInfo::Class X86_32ABIInfo::classify(QualType Ty) const { |
1653 | const Type *T = isSingleElementStruct(Ty, getContext()); |
1654 | if (!T) |
1655 | T = Ty.getTypePtr(); |
1656 | |
1657 | if (const BuiltinType *BT = T->getAs<BuiltinType>()) { |
1658 | BuiltinType::Kind K = BT->getKind(); |
1659 | if (K == BuiltinType::Float || K == BuiltinType::Double) |
1660 | return Float; |
1661 | } |
1662 | return Integer; |
1663 | } |
1664 | |
1665 | bool X86_32ABIInfo::updateFreeRegs(QualType Ty, CCState &State) const { |
1666 | if (!IsSoftFloatABI) { |
1667 | Class C = classify(Ty); |
1668 | if (C == Float) |
1669 | return false; |
1670 | } |
1671 | |
1672 | unsigned Size = getContext().getTypeSize(Ty); |
1673 | unsigned SizeInRegs = (Size + 31) / 32; |
1674 | |
1675 | if (SizeInRegs == 0) |
1676 | return false; |
1677 | |
1678 | if (!IsMCUABI) { |
1679 | if (SizeInRegs > State.FreeRegs) { |
1680 | State.FreeRegs = 0; |
1681 | return false; |
1682 | } |
1683 | } else { |
1684 | |
1685 | |
1686 | |
1687 | |
1688 | if (SizeInRegs > State.FreeRegs || SizeInRegs > 2) |
1689 | return false; |
1690 | } |
1691 | |
1692 | State.FreeRegs -= SizeInRegs; |
1693 | return true; |
1694 | } |
1695 | |
1696 | bool X86_32ABIInfo::shouldAggregateUseDirect(QualType Ty, CCState &State, |
1697 | bool &InReg, |
1698 | bool &NeedsPadding) const { |
1699 | |
1700 | |
1701 | |
1702 | if (IsWin32StructABI && isAggregateTypeForABI(Ty)) |
1703 | return false; |
1704 | |
1705 | NeedsPadding = false; |
1706 | InReg = !IsMCUABI; |
1707 | |
1708 | if (!updateFreeRegs(Ty, State)) |
1709 | return false; |
1710 | |
1711 | if (IsMCUABI) |
1712 | return true; |
1713 | |
1714 | if (State.CC == llvm::CallingConv::X86_FastCall || |
1715 | State.CC == llvm::CallingConv::X86_VectorCall || |
1716 | State.CC == llvm::CallingConv::X86_RegCall) { |
1717 | if (getContext().getTypeSize(Ty) <= 32 && State.FreeRegs) |
1718 | NeedsPadding = true; |
1719 | |
1720 | return false; |
1721 | } |
1722 | |
1723 | return true; |
1724 | } |
1725 | |
1726 | bool X86_32ABIInfo::shouldPrimitiveUseInReg(QualType Ty, CCState &State) const { |
1727 | if (!updateFreeRegs(Ty, State)) |
1728 | return false; |
1729 | |
1730 | if (IsMCUABI) |
1731 | return false; |
1732 | |
1733 | if (State.CC == llvm::CallingConv::X86_FastCall || |
1734 | State.CC == llvm::CallingConv::X86_VectorCall || |
1735 | State.CC == llvm::CallingConv::X86_RegCall) { |
1736 | if (getContext().getTypeSize(Ty) > 32) |
1737 | return false; |
1738 | |
1739 | return (Ty->isIntegralOrEnumerationType() || Ty->isPointerType() || |
1740 | Ty->isReferenceType()); |
1741 | } |
1742 | |
1743 | return true; |
1744 | } |
1745 | |
1746 | void X86_32ABIInfo::runVectorCallFirstPass(CGFunctionInfo &FI, CCState &State) const { |
1747 | |
1748 | |
1749 | |
1750 | |
1751 | |
1752 | |
1753 | |
1754 | |
1755 | |
1756 | MutableArrayRef<CGFunctionInfoArgInfo> Args = FI.arguments(); |
1757 | for (int I = 0, E = Args.size(); I < E; ++I) { |
1758 | const Type *Base = nullptr; |
1759 | uint64_t NumElts = 0; |
1760 | const QualType &Ty = Args[I].type; |
1761 | if ((Ty->isVectorType() || Ty->isBuiltinType()) && |
1762 | isHomogeneousAggregate(Ty, Base, NumElts)) { |
1763 | if (State.FreeSSERegs >= NumElts) { |
1764 | State.FreeSSERegs -= NumElts; |
1765 | Args[I].info = ABIArgInfo::getDirectInReg(); |
1766 | State.IsPreassigned.set(I); |
1767 | } |
1768 | } |
1769 | } |
1770 | } |
1771 | |
1772 | ABIArgInfo X86_32ABIInfo::classifyArgumentType(QualType Ty, |
1773 | CCState &State) const { |
1774 | |
1775 | bool IsFastCall = State.CC == llvm::CallingConv::X86_FastCall; |
1776 | bool IsRegCall = State.CC == llvm::CallingConv::X86_RegCall; |
1777 | bool IsVectorCall = State.CC == llvm::CallingConv::X86_VectorCall; |
1778 | |
1779 | Ty = useFirstFieldIfTransparentUnion(Ty); |
1780 | TypeInfo TI = getContext().getTypeInfo(Ty); |
1781 | |
1782 | |
1783 | const RecordType *RT = Ty->getAs<RecordType>(); |
1784 | if (RT) { |
1785 | CGCXXABI::RecordArgABI RAA = getRecordArgABI(RT, getCXXABI()); |
1786 | if (RAA == CGCXXABI::RAA_Indirect) { |
1787 | return getIndirectResult(Ty, false, State); |
1788 | } else if (RAA == CGCXXABI::RAA_DirectInMemory) { |
1789 | |
1790 | return ABIArgInfo::getInAlloca(0); |
1791 | } |
1792 | } |
1793 | |
1794 | |
1795 | |
1796 | const Type *Base = nullptr; |
1797 | uint64_t NumElts = 0; |
1798 | if ((IsRegCall || IsVectorCall) && |
1799 | isHomogeneousAggregate(Ty, Base, NumElts)) { |
1800 | if (State.FreeSSERegs >= NumElts) { |
1801 | State.FreeSSERegs -= NumElts; |
1802 | |
1803 | |
1804 | |
1805 | if (IsVectorCall) |
1806 | return getDirectX86Hva(); |
1807 | |
1808 | if (Ty->isBuiltinType() || Ty->isVectorType()) |
1809 | return ABIArgInfo::getDirect(); |
1810 | return ABIArgInfo::getExpand(); |
1811 | } |
1812 | return getIndirectResult(Ty, false, State); |
1813 | } |
1814 | |
1815 | if (isAggregateTypeForABI(Ty)) { |
1816 | |
1817 | |
1818 | if (RT && RT->getDecl()->hasFlexibleArrayMember()) |
1819 | return getIndirectResult(Ty, true, State); |
1820 | |
1821 | |
1822 | if (!IsWin32StructABI && isEmptyRecord(getContext(), Ty, true)) |
1823 | return ABIArgInfo::getIgnore(); |
1824 | |
1825 | llvm::LLVMContext &LLVMContext = getVMContext(); |
1826 | llvm::IntegerType *Int32 = llvm::Type::getInt32Ty(LLVMContext); |
1827 | bool NeedsPadding = false; |
1828 | bool InReg; |
1829 | if (shouldAggregateUseDirect(Ty, State, InReg, NeedsPadding)) { |
1830 | unsigned SizeInRegs = (TI.Width + 31) / 32; |
1831 | SmallVector<llvm::Type*, 3> Elements(SizeInRegs, Int32); |
1832 | llvm::Type *Result = llvm::StructType::get(LLVMContext, Elements); |
1833 | if (InReg) |
1834 | return ABIArgInfo::getDirectInReg(Result); |
1835 | else |
1836 | return ABIArgInfo::getDirect(Result); |
1837 | } |
1838 | llvm::IntegerType *PaddingType = NeedsPadding ? Int32 : nullptr; |
1839 | |
1840 | |
1841 | |
1842 | if (IsWin32StructABI && TI.isAlignRequired() && TI.Align > 32) |
1843 | return getIndirectResult(Ty, false, State); |
1844 | |
1845 | |
1846 | |
1847 | |
1848 | |
1849 | |
1850 | |
1851 | if (TI.Width <= 4 * 32 && (!IsMCUABI || State.FreeRegs == 0) && |
1852 | canExpandIndirectArgument(Ty)) |
1853 | return ABIArgInfo::getExpandWithPadding( |
1854 | IsFastCall || IsVectorCall || IsRegCall, PaddingType); |
1855 | |
1856 | return getIndirectResult(Ty, true, State); |
1857 | } |
1858 | |
1859 | if (const VectorType *VT = Ty->getAs<VectorType>()) { |
1860 | |
1861 | |
1862 | |
1863 | if (IsWin32StructABI) { |
1864 | if (TI.Width <= 512 && State.FreeSSERegs > 0) { |
1865 | --State.FreeSSERegs; |
1866 | return ABIArgInfo::getDirectInReg(); |
1867 | } |
1868 | return getIndirectResult(Ty, false, State); |
1869 | } |
1870 | |
1871 | |
1872 | |
1873 | if (IsDarwinVectorABI) { |
1874 | if ((TI.Width == 8 || TI.Width == 16 || TI.Width == 32) || |
1875 | (TI.Width == 64 && VT->getNumElements() == 1)) |
1876 | return ABIArgInfo::getDirect( |
1877 | llvm::IntegerType::get(getVMContext(), TI.Width)); |
1878 | } |
1879 | |
1880 | if (IsX86_MMXType(CGT.ConvertType(Ty))) |
1881 | return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(), 64)); |
1882 | |
1883 | return ABIArgInfo::getDirect(); |
1884 | } |
1885 | |
1886 | |
1887 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
1888 | Ty = EnumTy->getDecl()->getIntegerType(); |
1889 | |
1890 | bool InReg = shouldPrimitiveUseInReg(Ty, State); |
1891 | |
1892 | if (isPromotableIntegerTypeForABI(Ty)) { |
1893 | if (InReg) |
1894 | return ABIArgInfo::getExtendInReg(Ty); |
1895 | return ABIArgInfo::getExtend(Ty); |
1896 | } |
1897 | |
1898 | if (const auto * EIT = Ty->getAs<ExtIntType>()) { |
1899 | if (EIT->getNumBits() <= 64) { |
1900 | if (InReg) |
1901 | return ABIArgInfo::getDirectInReg(); |
1902 | return ABIArgInfo::getDirect(); |
1903 | } |
1904 | return getIndirectResult(Ty, false, State); |
1905 | } |
1906 | |
1907 | if (InReg) |
1908 | return ABIArgInfo::getDirectInReg(); |
1909 | return ABIArgInfo::getDirect(); |
1910 | } |
1911 | |
1912 | void X86_32ABIInfo::computeInfo(CGFunctionInfo &FI) const { |
1913 | CCState State(FI); |
1914 | if (IsMCUABI) |
1915 | State.FreeRegs = 3; |
1916 | else if (State.CC == llvm::CallingConv::X86_FastCall) { |
1917 | State.FreeRegs = 2; |
1918 | State.FreeSSERegs = 3; |
1919 | } else if (State.CC == llvm::CallingConv::X86_VectorCall) { |
1920 | State.FreeRegs = 2; |
1921 | State.FreeSSERegs = 6; |
1922 | } else if (FI.getHasRegParm()) |
1923 | State.FreeRegs = FI.getRegParm(); |
1924 | else if (State.CC == llvm::CallingConv::X86_RegCall) { |
1925 | State.FreeRegs = 5; |
1926 | State.FreeSSERegs = 8; |
1927 | } else if (IsWin32StructABI) { |
1928 | |
1929 | |
1930 | State.FreeRegs = DefaultNumRegisterParameters; |
1931 | State.FreeSSERegs = 3; |
1932 | } else |
1933 | State.FreeRegs = DefaultNumRegisterParameters; |
1934 | |
1935 | if (!::classifyReturnType(getCXXABI(), FI, *this)) { |
1936 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType(), State); |
1937 | } else if (FI.getReturnInfo().isIndirect()) { |
1938 | |
1939 | |
1940 | if (State.FreeRegs) { |
1941 | --State.FreeRegs; |
1942 | if (!IsMCUABI) |
1943 | FI.getReturnInfo().setInReg(true); |
1944 | } |
1945 | } |
1946 | |
1947 | |
1948 | if (FI.isChainCall()) |
1949 | ++State.FreeRegs; |
1950 | |
1951 | |
1952 | |
1953 | if (State.CC == llvm::CallingConv::X86_VectorCall) |
1954 | runVectorCallFirstPass(FI, State); |
1955 | |
1956 | bool UsedInAlloca = false; |
1957 | MutableArrayRef<CGFunctionInfoArgInfo> Args = FI.arguments(); |
1958 | for (int I = 0, E = Args.size(); I < E; ++I) { |
1959 | |
1960 | if (State.IsPreassigned.test(I)) |
1961 | continue; |
1962 | |
1963 | Args[I].info = classifyArgumentType(Args[I].type, State); |
1964 | UsedInAlloca |= (Args[I].info.getKind() == ABIArgInfo::InAlloca); |
1965 | } |
1966 | |
1967 | |
1968 | |
1969 | if (UsedInAlloca) |
1970 | rewriteWithInAlloca(FI); |
1971 | } |
1972 | |
1973 | void |
1974 | X86_32ABIInfo::addFieldToArgStruct(SmallVector<llvm::Type *, 6> &FrameFields, |
1975 | CharUnits &StackOffset, ABIArgInfo &Info, |
1976 | QualType Type) const { |
1977 | |
1978 | CharUnits WordSize = CharUnits::fromQuantity(4); |
1979 | assert(StackOffset.isMultipleOf(WordSize) && "unaligned inalloca struct"); |
1980 | |
1981 | |
1982 | |
1983 | |
1984 | bool IsIndirect = false; |
1985 | if (Info.isIndirect() && !Info.getIndirectByVal()) |
1986 | IsIndirect = true; |
1987 | Info = ABIArgInfo::getInAlloca(FrameFields.size(), IsIndirect); |
1988 | llvm::Type *LLTy = CGT.ConvertTypeForMem(Type); |
1989 | if (IsIndirect) |
1990 | LLTy = LLTy->getPointerTo(0); |
1991 | FrameFields.push_back(LLTy); |
1992 | StackOffset += IsIndirect ? WordSize : getContext().getTypeSizeInChars(Type); |
1993 | |
1994 | |
1995 | CharUnits FieldEnd = StackOffset; |
1996 | StackOffset = FieldEnd.alignTo(WordSize); |
1997 | if (StackOffset != FieldEnd) { |
1998 | CharUnits NumBytes = StackOffset - FieldEnd; |
1999 | llvm::Type *Ty = llvm::Type::getInt8Ty(getVMContext()); |
2000 | Ty = llvm::ArrayType::get(Ty, NumBytes.getQuantity()); |
2001 | FrameFields.push_back(Ty); |
2002 | } |
2003 | } |
2004 | |
2005 | static bool isArgInAlloca(const ABIArgInfo &Info) { |
2006 | |
2007 | switch (Info.getKind()) { |
2008 | case ABIArgInfo::InAlloca: |
2009 | return true; |
2010 | case ABIArgInfo::Ignore: |
2011 | case ABIArgInfo::IndirectAliased: |
2012 | return false; |
2013 | case ABIArgInfo::Indirect: |
2014 | case ABIArgInfo::Direct: |
2015 | case ABIArgInfo::Extend: |
2016 | return !Info.getInReg(); |
2017 | case ABIArgInfo::Expand: |
2018 | case ABIArgInfo::CoerceAndExpand: |
2019 | |
2020 | |
2021 | return true; |
2022 | } |
2023 | llvm_unreachable("invalid enum"); |
2024 | } |
2025 | |
2026 | void X86_32ABIInfo::rewriteWithInAlloca(CGFunctionInfo &FI) const { |
2027 | assert(IsWin32StructABI && "inalloca only supported on win32"); |
2028 | |
2029 | |
2030 | SmallVector<llvm::Type *, 6> FrameFields; |
2031 | |
2032 | |
2033 | CharUnits StackAlign = CharUnits::fromQuantity(4); |
2034 | |
2035 | CharUnits StackOffset; |
2036 | CGFunctionInfo::arg_iterator I = FI.arg_begin(), E = FI.arg_end(); |
2037 | |
2038 | |
2039 | bool IsThisCall = |
2040 | FI.getCallingConvention() == llvm::CallingConv::X86_ThisCall; |
2041 | ABIArgInfo &Ret = FI.getReturnInfo(); |
2042 | if (Ret.isIndirect() && Ret.isSRetAfterThis() && !IsThisCall && |
2043 | isArgInAlloca(I->info)) { |
2044 | addFieldToArgStruct(FrameFields, StackOffset, I->info, I->type); |
2045 | ++I; |
2046 | } |
2047 | |
2048 | |
2049 | if (Ret.isIndirect() && !Ret.getInReg()) { |
2050 | addFieldToArgStruct(FrameFields, StackOffset, Ret, FI.getReturnType()); |
2051 | |
2052 | Ret.setInAllocaSRet(IsWin32StructABI); |
2053 | } |
2054 | |
2055 | |
2056 | if (IsThisCall) |
2057 | ++I; |
2058 | |
2059 | |
2060 | for (; I != E; ++I) { |
2061 | if (isArgInAlloca(I->info)) |
2062 | addFieldToArgStruct(FrameFields, StackOffset, I->info, I->type); |
2063 | } |
2064 | |
2065 | FI.setArgStruct(llvm::StructType::get(getVMContext(), FrameFields, |
2066 | true), |
2067 | StackAlign); |
2068 | } |
2069 | |
2070 | Address X86_32ABIInfo::EmitVAArg(CodeGenFunction &CGF, |
2071 | Address VAListAddr, QualType Ty) const { |
2072 | |
2073 | auto TypeInfo = getContext().getTypeInfoInChars(Ty); |
2074 | |
2075 | |
2076 | |
2077 | |
2078 | |
2079 | TypeInfo.Align = CharUnits::fromQuantity( |
2080 | getTypeStackAlignInBytes(Ty, TypeInfo.Align.getQuantity())); |
2081 | |
2082 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, false, |
2083 | TypeInfo, CharUnits::fromQuantity(4), |
2084 | true); |
2085 | } |
2086 | |
2087 | bool X86_32TargetCodeGenInfo::isStructReturnInRegABI( |
2088 | const llvm::Triple &Triple, const CodeGenOptions &Opts) { |
2089 | assert(Triple.getArch() == llvm::Triple::x86); |
2090 | |
2091 | switch (Opts.getStructReturnConvention()) { |
2092 | case CodeGenOptions::SRCK_Default: |
2093 | break; |
2094 | case CodeGenOptions::SRCK_OnStack: |
2095 | return false; |
2096 | case CodeGenOptions::SRCK_InRegs: |
2097 | return true; |
2098 | } |
2099 | |
2100 | if (Triple.isOSDarwin() || Triple.isOSIAMCU()) |
2101 | return true; |
2102 | |
2103 | switch (Triple.getOS()) { |
2104 | case llvm::Triple::DragonFly: |
2105 | case llvm::Triple::FreeBSD: |
2106 | case llvm::Triple::OpenBSD: |
2107 | case llvm::Triple::Win32: |
2108 | return true; |
2109 | default: |
2110 | return false; |
2111 | } |
2112 | } |
2113 | |
2114 | static void addX86InterruptAttrs(const FunctionDecl *FD, llvm::GlobalValue *GV, |
2115 | CodeGen::CodeGenModule &CGM) { |
2116 | if (!FD->hasAttr<AnyX86InterruptAttr>()) |
2117 | return; |
2118 | |
2119 | llvm::Function *Fn = cast<llvm::Function>(GV); |
2120 | Fn->setCallingConv(llvm::CallingConv::X86_INTR); |
2121 | if (FD->getNumParams() == 0) |
2122 | return; |
2123 | |
2124 | auto PtrTy = cast<PointerType>(FD->getParamDecl(0)->getType()); |
2125 | llvm::Type *ByValTy = CGM.getTypes().ConvertType(PtrTy->getPointeeType()); |
2126 | llvm::Attribute NewAttr = llvm::Attribute::getWithByValType( |
2127 | Fn->getContext(), ByValTy); |
2128 | Fn->addParamAttr(0, NewAttr); |
2129 | } |
2130 | |
2131 | void X86_32TargetCodeGenInfo::setTargetAttributes( |
2132 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM) const { |
2133 | if (GV->isDeclaration()) |
2134 | return; |
2135 | if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { |
2136 | if (FD->hasAttr<X86ForceAlignArgPointerAttr>()) { |
2137 | llvm::Function *Fn = cast<llvm::Function>(GV); |
2138 | Fn->addFnAttr("stackrealign"); |
2139 | } |
2140 | |
2141 | addX86InterruptAttrs(FD, GV, CGM); |
2142 | } |
2143 | } |
2144 | |
2145 | bool X86_32TargetCodeGenInfo::initDwarfEHRegSizeTable( |
2146 | CodeGen::CodeGenFunction &CGF, |
2147 | llvm::Value *Address) const { |
2148 | CodeGen::CGBuilderTy &Builder = CGF.Builder; |
2149 | |
2150 | llvm::Value *Four8 = llvm::ConstantInt::get(CGF.Int8Ty, 4); |
2151 | |
2152 | |
2153 | |
2154 | |
2155 | AssignToArrayRange(Builder, Address, Four8, 0, 8); |
2156 | |
2157 | if (CGF.CGM.getTarget().getTriple().isOSDarwin()) { |
2158 | |
2159 | |
2160 | |
2161 | llvm::Value *Sixteen8 = llvm::ConstantInt::get(CGF.Int8Ty, 16); |
2162 | AssignToArrayRange(Builder, Address, Sixteen8, 12, 16); |
2163 | |
2164 | } else { |
2165 | |
2166 | |
2167 | Builder.CreateAlignedStore( |
2168 | Four8, Builder.CreateConstInBoundsGEP1_32(CGF.Int8Ty, Address, 9), |
2169 | CharUnits::One()); |
2170 | |
2171 | |
2172 | |
2173 | |
2174 | llvm::Value *Twelve8 = llvm::ConstantInt::get(CGF.Int8Ty, 12); |
2175 | AssignToArrayRange(Builder, Address, Twelve8, 11, 16); |
2176 | } |
2177 | |
2178 | return false; |
2179 | } |
2180 | |
2181 | |
2182 | |
2183 | |
2184 | |
2185 | |
2186 | namespace { |
2187 | |
2188 | enum class X86AVXABILevel { |
2189 | None, |
2190 | AVX, |
2191 | AVX512 |
2192 | }; |
2193 | |
2194 | |
2195 | static unsigned getNativeVectorSizeForAVXABI(X86AVXABILevel AVXLevel) { |
2196 | switch (AVXLevel) { |
2197 | case X86AVXABILevel::AVX512: |
2198 | return 512; |
2199 | case X86AVXABILevel::AVX: |
2200 | return 256; |
2201 | case X86AVXABILevel::None: |
2202 | return 128; |
2203 | } |
2204 | llvm_unreachable("Unknown AVXLevel"); |
2205 | } |
2206 | |
2207 | |
2208 | class X86_64ABIInfo : public SwiftABIInfo { |
2209 | enum Class { |
2210 | Integer = 0, |
2211 | SSE, |
2212 | SSEUp, |
2213 | X87, |
2214 | X87Up, |
2215 | ComplexX87, |
2216 | NoClass, |
2217 | Memory |
2218 | }; |
2219 | |
2220 | |
2221 | |
2222 | |
2223 | |
2224 | |
2225 | |
2226 | |
2227 | |
2228 | |
2229 | static Class merge(Class Accum, Class Field); |
2230 | |
2231 | |
2232 | |
2233 | |
2234 | |
2235 | |
2236 | |
2237 | |
2238 | |
2239 | |
2240 | |
2241 | |
2242 | |
2243 | |
2244 | |
2245 | void postMerge(unsigned AggregateSize, Class &Lo, Class &Hi) const; |
2246 | |
2247 | |
2248 | |
2249 | |
2250 | |
2251 | |
2252 | |
2253 | |
2254 | |
2255 | |
2256 | |
2257 | |
2258 | |
2259 | |
2260 | |
2261 | |
2262 | |
2263 | |
2264 | |
2265 | |
2266 | |
2267 | |
2268 | |
2269 | |
2270 | |
2271 | void classify(QualType T, uint64_t OffsetBase, Class &Lo, Class &Hi, |
2272 | bool isNamedArg) const; |
2273 | |
2274 | llvm::Type *GetByteVectorType(QualType Ty) const; |
2275 | llvm::Type *GetSSETypeAtOffset(llvm::Type *IRType, |
2276 | unsigned IROffset, QualType SourceTy, |
2277 | unsigned SourceOffset) const; |
2278 | llvm::Type *GetINTEGERTypeAtOffset(llvm::Type *IRType, |
2279 | unsigned IROffset, QualType SourceTy, |
2280 | unsigned SourceOffset) const; |
2281 | |
2282 | |
2283 | |
2284 | ABIArgInfo getIndirectReturnResult(QualType Ty) const; |
2285 | |
2286 | |
2287 | |
2288 | |
2289 | |
2290 | |
2291 | ABIArgInfo getIndirectResult(QualType Ty, unsigned freeIntRegs) const; |
2292 | |
2293 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
2294 | |
2295 | ABIArgInfo classifyArgumentType(QualType Ty, unsigned freeIntRegs, |
2296 | unsigned &neededInt, unsigned &neededSSE, |
2297 | bool isNamedArg) const; |
2298 | |
2299 | ABIArgInfo classifyRegCallStructType(QualType Ty, unsigned &NeededInt, |
2300 | unsigned &NeededSSE) const; |
2301 | |
2302 | ABIArgInfo classifyRegCallStructTypeImpl(QualType Ty, unsigned &NeededInt, |
2303 | unsigned &NeededSSE) const; |
2304 | |
2305 | bool IsIllegalVectorType(QualType Ty) const; |
2306 | |
2307 | |
2308 | |
2309 | |
2310 | |
2311 | |
2312 | bool honorsRevision0_98() const { |
2313 | return !getTarget().getTriple().isOSDarwin(); |
2314 | } |
2315 | |
2316 | |
2317 | |
2318 | bool classifyIntegerMMXAsSSE() const { |
2319 | |
2320 | if (getContext().getLangOpts().getClangABICompat() <= |
2321 | LangOptions::ClangABI::Ver3_8) |
2322 | return false; |
2323 | |
2324 | const llvm::Triple &Triple = getTarget().getTriple(); |
2325 | if (Triple.isOSDarwin() || Triple.getOS() == llvm::Triple::PS4) |
2326 | return false; |
2327 | if (Triple.isOSFreeBSD() && Triple.getOSMajorVersion() >= 10) |
2328 | return false; |
2329 | return true; |
2330 | } |
2331 | |
2332 | |
2333 | bool passInt128VectorsInMem() const { |
2334 | |
2335 | if (getContext().getLangOpts().getClangABICompat() <= |
2336 | LangOptions::ClangABI::Ver9) |
2337 | return false; |
2338 | |
2339 | const llvm::Triple &T = getTarget().getTriple(); |
2340 | return T.isOSLinux() || T.isOSNetBSD(); |
2341 | } |
2342 | |
2343 | X86AVXABILevel AVXLevel; |
2344 | |
2345 | |
2346 | bool Has64BitPointers; |
2347 | |
2348 | public: |
2349 | X86_64ABIInfo(CodeGen::CodeGenTypes &CGT, X86AVXABILevel AVXLevel) : |
2350 | SwiftABIInfo(CGT), AVXLevel(AVXLevel), |
2351 | Has64BitPointers(CGT.getDataLayout().getPointerSize(0) == 8) { |
2352 | } |
2353 | |
2354 | bool isPassedUsingAVXType(QualType type) const { |
2355 | unsigned neededInt, neededSSE; |
2356 | |
2357 | ABIArgInfo info = classifyArgumentType(type, 0, neededInt, neededSSE, |
2358 | true); |
2359 | if (info.isDirect()) { |
2360 | llvm::Type *ty = info.getCoerceToType(); |
2361 | if (llvm::VectorType *vectorTy = dyn_cast_or_null<llvm::VectorType>(ty)) |
2362 | return vectorTy->getPrimitiveSizeInBits().getFixedSize() > 128; |
2363 | } |
2364 | return false; |
2365 | } |
2366 | |
2367 | void computeInfo(CGFunctionInfo &FI) const override; |
2368 | |
2369 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
2370 | QualType Ty) const override; |
2371 | Address EmitMSVAArg(CodeGenFunction &CGF, Address VAListAddr, |
2372 | QualType Ty) const override; |
2373 | |
2374 | bool has64BitPointers() const { |
2375 | return Has64BitPointers; |
2376 | } |
2377 | |
2378 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars, |
2379 | bool asReturnValue) const override { |
2380 | return occupiesMoreThan(CGT, scalars, 4); |
2381 | } |
2382 | bool isSwiftErrorInRegister() const override { |
2383 | return true; |
2384 | } |
2385 | }; |
2386 | |
2387 | |
2388 | class WinX86_64ABIInfo : public SwiftABIInfo { |
2389 | public: |
2390 | WinX86_64ABIInfo(CodeGen::CodeGenTypes &CGT, X86AVXABILevel AVXLevel) |
2391 | : SwiftABIInfo(CGT), AVXLevel(AVXLevel), |
2392 | IsMingw64(getTarget().getTriple().isWindowsGNUEnvironment()) {} |
2393 | |
2394 | void computeInfo(CGFunctionInfo &FI) const override; |
2395 | |
2396 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
2397 | QualType Ty) const override; |
2398 | |
2399 | bool isHomogeneousAggregateBaseType(QualType Ty) const override { |
2400 | |
2401 | return isX86VectorTypeForVectorCall(getContext(), Ty); |
2402 | } |
2403 | |
2404 | bool isHomogeneousAggregateSmallEnough(const Type *Ty, |
2405 | uint64_t NumMembers) const override { |
2406 | |
2407 | return isX86VectorCallAggregateSmallEnough(NumMembers); |
2408 | } |
2409 | |
2410 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type *> scalars, |
2411 | bool asReturnValue) const override { |
2412 | return occupiesMoreThan(CGT, scalars, 4); |
2413 | } |
2414 | |
2415 | bool isSwiftErrorInRegister() const override { |
2416 | return true; |
2417 | } |
2418 | |
2419 | private: |
2420 | ABIArgInfo classify(QualType Ty, unsigned &FreeSSERegs, bool IsReturnType, |
2421 | bool IsVectorCall, bool IsRegCall) const; |
2422 | ABIArgInfo reclassifyHvaArgForVectorCall(QualType Ty, unsigned &FreeSSERegs, |
2423 | const ABIArgInfo ¤t) const; |
2424 | |
2425 | X86AVXABILevel AVXLevel; |
2426 | |
2427 | bool IsMingw64; |
2428 | }; |
2429 | |
2430 | class X86_64TargetCodeGenInfo : public TargetCodeGenInfo { |
2431 | public: |
2432 | X86_64TargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, X86AVXABILevel AVXLevel) |
2433 | : TargetCodeGenInfo(std::make_unique<X86_64ABIInfo>(CGT, AVXLevel)) {} |
2434 | |
2435 | const X86_64ABIInfo &getABIInfo() const { |
2436 | return static_cast<const X86_64ABIInfo&>(TargetCodeGenInfo::getABIInfo()); |
2437 | } |
2438 | |
2439 | |
2440 | |
2441 | bool markARCOptimizedReturnCallsAsNoTail() const override { return true; } |
2442 | |
2443 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &CGM) const override { |
2444 | return 7; |
2445 | } |
2446 | |
2447 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
2448 | llvm::Value *Address) const override { |
2449 | llvm::Value *Eight8 = llvm::ConstantInt::get(CGF.Int8Ty, 8); |
2450 | |
2451 | |
2452 | |
2453 | AssignToArrayRange(CGF.Builder, Address, Eight8, 0, 16); |
2454 | return false; |
2455 | } |
2456 | |
2457 | llvm::Type* adjustInlineAsmType(CodeGen::CodeGenFunction &CGF, |
2458 | StringRef Constraint, |
2459 | llvm::Type* Ty) const override { |
2460 | return X86AdjustInlineAsmType(CGF, Constraint, Ty); |
2461 | } |
2462 | |
2463 | bool isNoProtoCallVariadic(const CallArgList &args, |
2464 | const FunctionNoProtoType *fnType) const override { |
2465 | |
2466 | |
2467 | |
2468 | |
2469 | |
2470 | |
2471 | if (fnType->getCallConv() == CC_C) { |
2472 | bool HasAVXType = false; |
2473 | for (CallArgList::const_iterator |
2474 | it = args.begin(), ie = args.end(); it != ie; ++it) { |
2475 | if (getABIInfo().isPassedUsingAVXType(it->Ty)) { |
2476 | HasAVXType = true; |
2477 | break; |
2478 | } |
2479 | } |
2480 | |
2481 | if (!HasAVXType) |
2482 | return true; |
2483 | } |
2484 | |
2485 | return TargetCodeGenInfo::isNoProtoCallVariadic(args, fnType); |
2486 | } |
2487 | |
2488 | llvm::Constant * |
2489 | getUBSanFunctionSignature(CodeGen::CodeGenModule &CGM) const override { |
2490 | unsigned Sig = (0xeb << 0) | |
2491 | (0x06 << 8) | |
2492 | ('v' << 16) | |
2493 | ('2' << 24); |
2494 | return llvm::ConstantInt::get(CGM.Int32Ty, Sig); |
2495 | } |
2496 | |
2497 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
2498 | CodeGen::CodeGenModule &CGM) const override { |
2499 | if (GV->isDeclaration()) |
2500 | return; |
2501 | if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { |
2502 | if (FD->hasAttr<X86ForceAlignArgPointerAttr>()) { |
2503 | llvm::Function *Fn = cast<llvm::Function>(GV); |
2504 | Fn->addFnAttr("stackrealign"); |
2505 | } |
2506 | |
2507 | addX86InterruptAttrs(FD, GV, CGM); |
2508 | } |
2509 | } |
2510 | |
2511 | void checkFunctionCallABI(CodeGenModule &CGM, SourceLocation CallLoc, |
2512 | const FunctionDecl *Caller, |
2513 | const FunctionDecl *Callee, |
2514 | const CallArgList &Args) const override; |
2515 | }; |
2516 | |
2517 | static void initFeatureMaps(const ASTContext &Ctx, |
2518 | llvm::StringMap<bool> &CallerMap, |
2519 | const FunctionDecl *Caller, |
2520 | llvm::StringMap<bool> &CalleeMap, |
2521 | const FunctionDecl *Callee) { |
2522 | if (CalleeMap.empty() && CallerMap.empty()) { |
2523 | |
2524 | |
2525 | |
2526 | Ctx.getFunctionFeatureMap(CallerMap, Caller); |
2527 | Ctx.getFunctionFeatureMap(CalleeMap, Callee); |
2528 | } |
2529 | } |
2530 | |
2531 | static bool checkAVXParamFeature(DiagnosticsEngine &Diag, |
2532 | SourceLocation CallLoc, |
2533 | const llvm::StringMap<bool> &CallerMap, |
2534 | const llvm::StringMap<bool> &CalleeMap, |
2535 | QualType Ty, StringRef Feature, |
2536 | bool IsArgument) { |
2537 | bool CallerHasFeat = CallerMap.lookup(Feature); |
2538 | bool CalleeHasFeat = CalleeMap.lookup(Feature); |
2539 | if (!CallerHasFeat && !CalleeHasFeat) |
2540 | return Diag.Report(CallLoc, diag::warn_avx_calling_convention) |
2541 | << IsArgument << Ty << Feature; |
2542 | |
2543 | |
2544 | if (!CallerHasFeat || !CalleeHasFeat) |
2545 | return Diag.Report(CallLoc, diag::err_avx_calling_convention) |
2546 | << IsArgument << Ty << Feature; |
2547 | |
2548 | |
2549 | |
2550 | return false; |
2551 | } |
2552 | |
2553 | static bool checkAVXParam(DiagnosticsEngine &Diag, ASTContext &Ctx, |
2554 | SourceLocation CallLoc, |
2555 | const llvm::StringMap<bool> &CallerMap, |
2556 | const llvm::StringMap<bool> &CalleeMap, QualType Ty, |
2557 | bool IsArgument) { |
2558 | uint64_t Size = Ctx.getTypeSize(Ty); |
2559 | if (Size > 256) |
2560 | return checkAVXParamFeature(Diag, CallLoc, CallerMap, CalleeMap, Ty, |
2561 | "avx512f", IsArgument); |
2562 | |
2563 | if (Size > 128) |
2564 | return checkAVXParamFeature(Diag, CallLoc, CallerMap, CalleeMap, Ty, "avx", |
2565 | IsArgument); |
2566 | |
2567 | return false; |
2568 | } |
2569 | |
2570 | void X86_64TargetCodeGenInfo::checkFunctionCallABI( |
2571 | CodeGenModule &CGM, SourceLocation CallLoc, const FunctionDecl *Caller, |
2572 | const FunctionDecl *Callee, const CallArgList &Args) const { |
2573 | llvm::StringMap<bool> CallerMap; |
2574 | llvm::StringMap<bool> CalleeMap; |
2575 | unsigned ArgIndex = 0; |
2576 | |
2577 | |
2578 | |
2579 | for (const CallArg &Arg : Args) { |
2580 | |
2581 | |
2582 | |
2583 | |
2584 | |
2585 | |
2586 | |
2587 | if (Arg.getType()->isVectorType() && |
2588 | CGM.getContext().getTypeSize(Arg.getType()) > 128) { |
2589 | initFeatureMaps(CGM.getContext(), CallerMap, Caller, CalleeMap, Callee); |
2590 | QualType Ty = Arg.getType(); |
2591 | |
2592 | |
2593 | if (ArgIndex < Callee->getNumParams()) |
2594 | Ty = Callee->getParamDecl(ArgIndex)->getType(); |
2595 | |
2596 | if (checkAVXParam(CGM.getDiags(), CGM.getContext(), CallLoc, CallerMap, |
2597 | CalleeMap, Ty, true)) |
2598 | return; |
2599 | } |
2600 | ++ArgIndex; |
2601 | } |
2602 | |
2603 | |
2604 | |
2605 | if (Callee->getReturnType()->isVectorType() && |
2606 | CGM.getContext().getTypeSize(Callee->getReturnType()) > 128) { |
2607 | initFeatureMaps(CGM.getContext(), CallerMap, Caller, CalleeMap, Callee); |
2608 | checkAVXParam(CGM.getDiags(), CGM.getContext(), CallLoc, CallerMap, |
2609 | CalleeMap, Callee->getReturnType(), |
2610 | false); |
2611 | } |
2612 | } |
2613 | |
2614 | static std::string qualifyWindowsLibrary(llvm::StringRef Lib) { |
2615 | |
2616 | |
2617 | |
2618 | bool Quote = (Lib.find(' ') != StringRef::npos); |
2619 | std::string ArgStr = Quote ? "\"" : ""; |
2620 | ArgStr += Lib; |
2621 | if (!Lib.endswith_insensitive(".lib") && !Lib.endswith_insensitive(".a")) |
2622 | ArgStr += ".lib"; |
2623 | ArgStr += Quote ? "\"" : ""; |
2624 | return ArgStr; |
2625 | } |
2626 | |
2627 | class WinX86_32TargetCodeGenInfo : public X86_32TargetCodeGenInfo { |
2628 | public: |
2629 | WinX86_32TargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, |
2630 | bool DarwinVectorABI, bool RetSmallStructInRegABI, bool Win32StructABI, |
2631 | unsigned NumRegisterParameters) |
2632 | : X86_32TargetCodeGenInfo(CGT, DarwinVectorABI, RetSmallStructInRegABI, |
2633 | Win32StructABI, NumRegisterParameters, false) {} |
2634 | |
2635 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
2636 | CodeGen::CodeGenModule &CGM) const override; |
2637 | |
2638 | void getDependentLibraryOption(llvm::StringRef Lib, |
2639 | llvm::SmallString<24> &Opt) const override { |
2640 | Opt = "/DEFAULTLIB:"; |
2641 | Opt += qualifyWindowsLibrary(Lib); |
2642 | } |
2643 | |
2644 | void getDetectMismatchOption(llvm::StringRef Name, |
2645 | llvm::StringRef Value, |
2646 | llvm::SmallString<32> &Opt) const override { |
2647 | Opt = "/FAILIFMISMATCH:\"" + Name.str() + "=" + Value.str() + "\""; |
2648 | } |
2649 | }; |
2650 | |
2651 | static void addStackProbeTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
2652 | CodeGen::CodeGenModule &CGM) { |
2653 | if (llvm::Function *Fn = dyn_cast_or_null<llvm::Function>(GV)) { |
2654 | |
2655 | if (CGM.getCodeGenOpts().StackProbeSize != 4096) |
2656 | Fn->addFnAttr("stack-probe-size", |
2657 | llvm::utostr(CGM.getCodeGenOpts().StackProbeSize)); |
2658 | if (CGM.getCodeGenOpts().NoStackArgProbe) |
2659 | Fn->addFnAttr("no-stack-arg-probe"); |
2660 | } |
2661 | } |
2662 | |
2663 | void WinX86_32TargetCodeGenInfo::setTargetAttributes( |
2664 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM) const { |
2665 | X86_32TargetCodeGenInfo::setTargetAttributes(D, GV, CGM); |
2666 | if (GV->isDeclaration()) |
2667 | return; |
2668 | addStackProbeTargetAttributes(D, GV, CGM); |
2669 | } |
2670 | |
2671 | class WinX86_64TargetCodeGenInfo : public TargetCodeGenInfo { |
2672 | public: |
2673 | WinX86_64TargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, |
2674 | X86AVXABILevel AVXLevel) |
2675 | : TargetCodeGenInfo(std::make_unique<WinX86_64ABIInfo>(CGT, AVXLevel)) {} |
2676 | |
2677 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
2678 | CodeGen::CodeGenModule &CGM) const override; |
2679 | |
2680 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &CGM) const override { |
2681 | return 7; |
2682 | } |
2683 | |
2684 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
2685 | llvm::Value *Address) const override { |
2686 | llvm::Value *Eight8 = llvm::ConstantInt::get(CGF.Int8Ty, 8); |
2687 | |
2688 | |
2689 | |
2690 | AssignToArrayRange(CGF.Builder, Address, Eight8, 0, 16); |
2691 | return false; |
2692 | } |
2693 | |
2694 | void getDependentLibraryOption(llvm::StringRef Lib, |
2695 | llvm::SmallString<24> &Opt) const override { |
2696 | Opt = "/DEFAULTLIB:"; |
2697 | Opt += qualifyWindowsLibrary(Lib); |
2698 | } |
2699 | |
2700 | void getDetectMismatchOption(llvm::StringRef Name, |
2701 | llvm::StringRef Value, |
2702 | llvm::SmallString<32> &Opt) const override { |
2703 | Opt = "/FAILIFMISMATCH:\"" + Name.str() + "=" + Value.str() + "\""; |
2704 | } |
2705 | }; |
2706 | |
2707 | void WinX86_64TargetCodeGenInfo::setTargetAttributes( |
2708 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM) const { |
2709 | TargetCodeGenInfo::setTargetAttributes(D, GV, CGM); |
2710 | if (GV->isDeclaration()) |
2711 | return; |
2712 | if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { |
2713 | if (FD->hasAttr<X86ForceAlignArgPointerAttr>()) { |
2714 | llvm::Function *Fn = cast<llvm::Function>(GV); |
2715 | Fn->addFnAttr("stackrealign"); |
2716 | } |
2717 | |
2718 | addX86InterruptAttrs(FD, GV, CGM); |
2719 | } |
2720 | |
2721 | addStackProbeTargetAttributes(D, GV, CGM); |
2722 | } |
2723 | } |
2724 | |
2725 | void X86_64ABIInfo::postMerge(unsigned AggregateSize, Class &Lo, |
2726 | Class &Hi) const { |
2727 | |
2728 | |
2729 | |
2730 | |
2731 | |
2732 | |
2733 | |
2734 | |
2735 | |
2736 | |
2737 | |
2738 | |
2739 | |
2740 | |
2741 | |
2742 | |
2743 | |
2744 | |
2745 | |
2746 | |
2747 | |
2748 | if (Hi == Memory) |
2749 | Lo = Memory; |
2750 | if (Hi == X87Up && Lo != X87 && honorsRevision0_98()) |
2751 | Lo = Memory; |
2752 | if (AggregateSize > 128 && (Lo != SSE || Hi != SSEUp)) |
2753 | Lo = Memory; |
2754 | if (Hi == SSEUp && Lo != SSE) |
2755 | Hi = SSE; |
2756 | } |
2757 | |
2758 | X86_64ABIInfo::Class X86_64ABIInfo::merge(Class Accum, Class Field) { |
2759 | |
2760 | |
2761 | |
2762 | |
2763 | |
2764 | |
2765 | |
2766 | |
2767 | |
2768 | |
2769 | |
2770 | |
2771 | |
2772 | |
2773 | |
2774 | |
2775 | |
2776 | |
2777 | |
2778 | |
2779 | |
2780 | |
2781 | |
2782 | assert((Accum != Memory && Accum != ComplexX87) && |
2783 | "Invalid accumulated classification during merge."); |
2784 | if (Accum == Field || Field == NoClass) |
2785 | return Accum; |
2786 | if (Field == Memory) |
2787 | return Memory; |
2788 | if (Accum == NoClass) |
2789 | return Field; |
2790 | if (Accum == Integer || Field == Integer) |
2791 | return Integer; |
2792 | if (Field == X87 || Field == X87Up || Field == ComplexX87 || |
2793 | Accum == X87 || Accum == X87Up) |
2794 | return Memory; |
2795 | return SSE; |
2796 | } |
2797 | |
2798 | void X86_64ABIInfo::classify(QualType Ty, uint64_t OffsetBase, |
2799 | Class &Lo, Class &Hi, bool isNamedArg) const { |
2800 | |
2801 | |
2802 | |
2803 | |
2804 | |
2805 | |
2806 | |
2807 | |
2808 | Lo = Hi = NoClass; |
2809 | |
2810 | Class &Current = OffsetBase < 64 ? Lo : Hi; |
2811 | Current = Memory; |
2812 | |
2813 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) { |
2814 | BuiltinType::Kind k = BT->getKind(); |
2815 | |
2816 | if (k == BuiltinType::Void) { |
2817 | Current = NoClass; |
2818 | } else if (k == BuiltinType::Int128 || k == BuiltinType::UInt128) { |
2819 | Lo = Integer; |
2820 | Hi = Integer; |
2821 | } else if (k >= BuiltinType::Bool && k <= BuiltinType::LongLong) { |
2822 | Current = Integer; |
2823 | } else if (k == BuiltinType::Float || k == BuiltinType::Double || |
2824 | k == BuiltinType::Float16) { |
2825 | Current = SSE; |
2826 | } else if (k == BuiltinType::LongDouble) { |
2827 | const llvm::fltSemantics *LDF = &getTarget().getLongDoubleFormat(); |
2828 | if (LDF == &llvm::APFloat::IEEEquad()) { |
2829 | Lo = SSE; |
2830 | Hi = SSEUp; |
2831 | } else if (LDF == &llvm::APFloat::x87DoubleExtended()) { |
2832 | Lo = X87; |
2833 | Hi = X87Up; |
2834 | } else if (LDF == &llvm::APFloat::IEEEdouble()) { |
2835 | Current = SSE; |
2836 | } else |
2837 | llvm_unreachable("unexpected long double representation!"); |
2838 | } |
2839 | |
2840 | |
2841 | return; |
2842 | } |
2843 | |
2844 | if (const EnumType *ET = Ty->getAs<EnumType>()) { |
2845 | |
2846 | classify(ET->getDecl()->getIntegerType(), OffsetBase, Lo, Hi, isNamedArg); |
2847 | return; |
2848 | } |
2849 | |
2850 | if (Ty->hasPointerRepresentation()) { |
2851 | Current = Integer; |
2852 | return; |
2853 | } |
2854 | |
2855 | if (Ty->isMemberPointerType()) { |
2856 | if (Ty->isMemberFunctionPointerType()) { |
2857 | if (Has64BitPointers) { |
2858 | |
2859 | |
2860 | Lo = Hi = Integer; |
2861 | } else { |
2862 | |
2863 | |
2864 | uint64_t EB_FuncPtr = (OffsetBase) / 64; |
2865 | uint64_t EB_ThisAdj = (OffsetBase + 64 - 1) / 64; |
2866 | if (EB_FuncPtr != EB_ThisAdj) { |
2867 | Lo = Hi = Integer; |
2868 | } else { |
2869 | Current = Integer; |
2870 | } |
2871 | } |
2872 | } else { |
2873 | Current = Integer; |
2874 | } |
2875 | return; |
2876 | } |
2877 | |
2878 | if (const VectorType *VT = Ty->getAs<VectorType>()) { |
2879 | uint64_t Size = getContext().getTypeSize(VT); |
2880 | if (Size == 1 || Size == 8 || Size == 16 || Size == 32) { |
2881 | |
2882 | |
2883 | |
2884 | |
2885 | Current = Integer; |
2886 | |
2887 | |
2888 | |
2889 | uint64_t EB_Lo = (OffsetBase) / 64; |
2890 | uint64_t EB_Hi = (OffsetBase + Size - 1) / 64; |
2891 | if (EB_Lo != EB_Hi) |
2892 | Hi = Lo; |
2893 | } else if (Size == 64) { |
2894 | QualType ElementType = VT->getElementType(); |
2895 | |
2896 | |
2897 | if (ElementType->isSpecificBuiltinType(BuiltinType::Double)) |
2898 | return; |
2899 | |
2900 | |
2901 | |
2902 | |
2903 | if (!classifyIntegerMMXAsSSE() && |
2904 | (ElementType->isSpecificBuiltinType(BuiltinType::LongLong) || |
2905 | ElementType->isSpecificBuiltinType(BuiltinType::ULongLong) || |
2906 | ElementType->isSpecificBuiltinType(BuiltinType::Long) || |
2907 | ElementType->isSpecificBuiltinType(BuiltinType::ULong))) |
2908 | Current = Integer; |
2909 | else |
2910 | Current = SSE; |
2911 | |
2912 | |
2913 | |
2914 | if (OffsetBase && OffsetBase != 64) |
2915 | Hi = Lo; |
2916 | } else if (Size == 128 || |
2917 | (isNamedArg && Size <= getNativeVectorSizeForAVXABI(AVXLevel))) { |
2918 | QualType ElementType = VT->getElementType(); |
2919 | |
2920 | |
2921 | if (passInt128VectorsInMem() && Size != 128 && |
2922 | (ElementType->isSpecificBuiltinType(BuiltinType::Int128) || |
2923 | ElementType->isSpecificBuiltinType(BuiltinType::UInt128))) |
2924 | return; |
2925 | |
2926 | |
2927 | |
2928 | |
2929 | |
2930 | |
2931 | |
2932 | |
2933 | |
2934 | |
2935 | |
2936 | |
2937 | |
2938 | |
2939 | |
2940 | Lo = SSE; |
2941 | Hi = SSEUp; |
2942 | } |
2943 | return; |
2944 | } |
2945 | |
2946 | if (const ComplexType *CT = Ty->getAs<ComplexType>()) { |
2947 | QualType ET = getContext().getCanonicalType(CT->getElementType()); |
2948 | |
2949 | uint64_t Size = getContext().getTypeSize(Ty); |
2950 | if (ET->isIntegralOrEnumerationType()) { |
2951 | if (Size <= 64) |
2952 | Current = Integer; |
2953 | else if (Size <= 128) |
2954 | Lo = Hi = Integer; |
2955 | } else if (ET->isFloat16Type() || ET == getContext().FloatTy) { |
2956 | Current = SSE; |
2957 | } else if (ET == getContext().DoubleTy) { |
2958 | Lo = Hi = SSE; |
2959 | } else if (ET == getContext().LongDoubleTy) { |
2960 | const llvm::fltSemantics *LDF = &getTarget().getLongDoubleFormat(); |
2961 | if (LDF == &llvm::APFloat::IEEEquad()) |
2962 | Current = Memory; |
2963 | else if (LDF == &llvm::APFloat::x87DoubleExtended()) |
2964 | Current = ComplexX87; |
2965 | else if (LDF == &llvm::APFloat::IEEEdouble()) |
2966 | Lo = Hi = SSE; |
2967 | else |
2968 | llvm_unreachable("unexpected long double representation!"); |
2969 | } |
2970 | |
2971 | |
2972 | |
2973 | uint64_t EB_Real = (OffsetBase) / 64; |
2974 | uint64_t EB_Imag = (OffsetBase + getContext().getTypeSize(ET)) / 64; |
2975 | if (Hi == NoClass && EB_Real != EB_Imag) |
2976 | Hi = Lo; |
2977 | |
2978 | return; |
2979 | } |
2980 | |
2981 | if (const auto *EITy = Ty->getAs<ExtIntType>()) { |
2982 | if (EITy->getNumBits() <= 64) |
2983 | Current = Integer; |
2984 | else if (EITy->getNumBits() <= 128) |
2985 | Lo = Hi = Integer; |
2986 | |
2987 | return; |
2988 | } |
2989 | |
2990 | if (const ConstantArrayType *AT = getContext().getAsConstantArrayType(Ty)) { |
2991 | |
2992 | |
2993 | uint64_t Size = getContext().getTypeSize(Ty); |
2994 | |
2995 | |
2996 | |
2997 | if (Size > 512) |
2998 | return; |
2999 | |
3000 | |
3001 | |
3002 | |
3003 | |
3004 | if (OffsetBase % getContext().getTypeAlign(AT->getElementType())) |
3005 | return; |
3006 | |
3007 | |
3008 | |
3009 | Current = NoClass; |
3010 | uint64_t EltSize = getContext().getTypeSize(AT->getElementType()); |
3011 | uint64_t ArraySize = AT->getSize().getZExtValue(); |
3012 | |
3013 | |
3014 | |
3015 | |
3016 | |
3017 | if (Size > 128 && |
3018 | (Size != EltSize || Size > getNativeVectorSizeForAVXABI(AVXLevel))) |
3019 | return; |
3020 | |
3021 | for (uint64_t i=0, Offset=OffsetBase; i<ArraySize; ++i, Offset += EltSize) { |
3022 | Class FieldLo, FieldHi; |
3023 | classify(AT->getElementType(), Offset, FieldLo, FieldHi, isNamedArg); |
3024 | Lo = merge(Lo, FieldLo); |
3025 | Hi = merge(Hi, FieldHi); |
3026 | if (Lo == Memory || Hi == Memory) |
3027 | break; |
3028 | } |
3029 | |
3030 | postMerge(Size, Lo, Hi); |
3031 | assert((Hi != SSEUp || Lo == SSE) && "Invalid SSEUp array classification."); |
3032 | return; |
3033 | } |
3034 | |
3035 | if (const RecordType *RT = Ty->getAs<RecordType>()) { |
3036 | uint64_t Size = getContext().getTypeSize(Ty); |
3037 | |
3038 | |
3039 | |
3040 | if (Size > 512) |
3041 | return; |
3042 | |
3043 | |
3044 | |
3045 | |
3046 | if (getRecordArgABI(RT, getCXXABI())) |
3047 | return; |
3048 | |
3049 | const RecordDecl *RD = RT->getDecl(); |
3050 | |
3051 | |
3052 | if (RD->hasFlexibleArrayMember()) |
3053 | return; |
3054 | |
3055 | const ASTRecordLayout &Layout = getContext().getASTRecordLayout(RD); |
3056 | |
3057 | |
3058 | Current = NoClass; |
3059 | |
3060 | |
3061 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) { |
3062 | for (const auto &I : CXXRD->bases()) { |
3063 | assert(!I.isVirtual() && !I.getType()->isDependentType() && |
3064 | "Unexpected base class!"); |
3065 | const auto *Base = |
3066 | cast<CXXRecordDecl>(I.getType()->castAs<RecordType>()->getDecl()); |
3067 | |
3068 | |
3069 | |
3070 | |
3071 | |
3072 | |
3073 | Class FieldLo, FieldHi; |
3074 | uint64_t Offset = |
3075 | OffsetBase + getContext().toBits(Layout.getBaseClassOffset(Base)); |
3076 | classify(I.getType(), Offset, FieldLo, FieldHi, isNamedArg); |
3077 | Lo = merge(Lo, FieldLo); |
3078 | Hi = merge(Hi, FieldHi); |
3079 | if (Lo == Memory || Hi == Memory) { |
3080 | postMerge(Size, Lo, Hi); |
3081 | return; |
3082 | } |
3083 | } |
3084 | } |
3085 | |
3086 | |
3087 | unsigned idx = 0; |
3088 | bool UseClang11Compat = getContext().getLangOpts().getClangABICompat() <= |
3089 | LangOptions::ClangABI::Ver11 || |
3090 | getContext().getTargetInfo().getTriple().isPS4(); |
3091 | bool IsUnion = RT->isUnionType() && !UseClang11Compat; |
3092 | |
3093 | for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end(); |
3094 | i != e; ++i, ++idx) { |
3095 | uint64_t Offset = OffsetBase + Layout.getFieldOffset(idx); |
3096 | bool BitField = i->isBitField(); |
3097 | |
3098 | |
3099 | if (BitField && i->isUnnamedBitfield()) |
3100 | continue; |
3101 | |
3102 | |
3103 | |
3104 | |
3105 | |
3106 | |
3107 | |
3108 | |
3109 | |
3110 | |
3111 | if (Size > 128 && |
3112 | ((!IsUnion && Size != getContext().getTypeSize(i->getType())) || |
3113 | Size > getNativeVectorSizeForAVXABI(AVXLevel))) { |
3114 | Lo = Memory; |
3115 | postMerge(Size, Lo, Hi); |
3116 | return; |
3117 | } |
3118 | |
3119 | if (!BitField && Offset % getContext().getTypeAlign(i->getType())) { |
3120 | Lo = Memory; |
3121 | postMerge(Size, Lo, Hi); |
3122 | return; |
3123 | } |
3124 | |
3125 | |
3126 | |
3127 | |
3128 | |
3129 | |
3130 | |
3131 | Class FieldLo, FieldHi; |
3132 | |
3133 | |
3134 | |
3135 | |
3136 | if (BitField) { |
3137 | assert(!i->isUnnamedBitfield()); |
3138 | uint64_t Offset = OffsetBase + Layout.getFieldOffset(idx); |
3139 | uint64_t Size = i->getBitWidthValue(getContext()); |
3140 | |
3141 | uint64_t EB_Lo = Offset / 64; |
3142 | uint64_t EB_Hi = (Offset + Size - 1) / 64; |
3143 | |
3144 | if (EB_Lo) { |
3145 | assert(EB_Hi == EB_Lo && "Invalid classification, type > 16 bytes."); |
3146 | FieldLo = NoClass; |
3147 | FieldHi = Integer; |
3148 | } else { |
3149 | FieldLo = Integer; |
3150 | FieldHi = EB_Hi ? Integer : NoClass; |
3151 | } |
3152 | } else |
3153 | classify(i->getType(), Offset, FieldLo, FieldHi, isNamedArg); |
3154 | Lo = merge(Lo, FieldLo); |
3155 | Hi = merge(Hi, FieldHi); |
3156 | if (Lo == Memory || Hi == Memory) |
3157 | break; |
3158 | } |
3159 | |
3160 | postMerge(Size, Lo, Hi); |
3161 | } |
3162 | } |
3163 | |
3164 | ABIArgInfo X86_64ABIInfo::getIndirectReturnResult(QualType Ty) const { |
3165 | |
3166 | |
3167 | if (!isAggregateTypeForABI(Ty)) { |
3168 | |
3169 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
3170 | Ty = EnumTy->getDecl()->getIntegerType(); |
3171 | |
3172 | if (Ty->isExtIntType()) |
3173 | return getNaturalAlignIndirect(Ty); |
3174 | |
3175 | return (isPromotableIntegerTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
3176 | : ABIArgInfo::getDirect()); |
3177 | } |
3178 | |
3179 | return getNaturalAlignIndirect(Ty); |
3180 | } |
3181 | |
3182 | bool X86_64ABIInfo::IsIllegalVectorType(QualType Ty) const { |
3183 | if (const VectorType *VecTy = Ty->getAs<VectorType>()) { |
3184 | uint64_t Size = getContext().getTypeSize(VecTy); |
3185 | unsigned LargestVector = getNativeVectorSizeForAVXABI(AVXLevel); |
3186 | if (Size <= 64 || Size > LargestVector) |
3187 | return true; |
3188 | QualType EltTy = VecTy->getElementType(); |
3189 | if (passInt128VectorsInMem() && |
3190 | (EltTy->isSpecificBuiltinType(BuiltinType::Int128) || |
3191 | EltTy->isSpecificBuiltinType(BuiltinType::UInt128))) |
3192 | return true; |
3193 | } |
3194 | |
3195 | return false; |
3196 | } |
3197 | |
3198 | ABIArgInfo X86_64ABIInfo::getIndirectResult(QualType Ty, |
3199 | unsigned freeIntRegs) const { |
3200 | |
3201 | |
3202 | |
3203 | |
3204 | |
3205 | |
3206 | |
3207 | |
3208 | if (!isAggregateTypeForABI(Ty) && !IsIllegalVectorType(Ty) && |
3209 | !Ty->isExtIntType()) { |
3210 | |
3211 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
3212 | Ty = EnumTy->getDecl()->getIntegerType(); |
3213 | |
3214 | return (isPromotableIntegerTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
3215 | : ABIArgInfo::getDirect()); |
3216 | } |
3217 | |
3218 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
3219 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
3220 | |
3221 | |
3222 | |
3223 | unsigned Align = std::max(getContext().getTypeAlign(Ty) / 8, 8U); |
3224 | |
3225 | |
3226 | |
3227 | |
3228 | |
3229 | |
3230 | |
3231 | |
3232 | |
3233 | |
3234 | |
3235 | |
3236 | |
3237 | |
3238 | |
3239 | |
3240 | |
3241 | |
3242 | |
3243 | |
3244 | |
3245 | |
3246 | if (freeIntRegs == 0) { |
3247 | uint64_t Size = getContext().getTypeSize(Ty); |
3248 | |
3249 | |
3250 | |
3251 | if (Align == 8 && Size <= 64) |
3252 | return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(), |
3253 | Size)); |
3254 | } |
3255 | |
3256 | return ABIArgInfo::getIndirect(CharUnits::fromQuantity(Align)); |
3257 | } |
3258 | |
3259 | |
3260 | |
3261 | llvm::Type *X86_64ABIInfo::GetByteVectorType(QualType Ty) const { |
3262 | |
3263 | |
3264 | if (const Type *InnerTy = isSingleElementStruct(Ty, getContext())) |
3265 | Ty = QualType(InnerTy, 0); |
3266 | |
3267 | llvm::Type *IRType = CGT.ConvertType(Ty); |
3268 | if (isa<llvm::VectorType>(IRType)) { |
3269 | |
3270 | |
3271 | if (passInt128VectorsInMem() && |
3272 | cast<llvm::VectorType>(IRType)->getElementType()->isIntegerTy(128)) { |
3273 | |
3274 | uint64_t Size = getContext().getTypeSize(Ty); |
3275 | return llvm::FixedVectorType::get(llvm::Type::getInt64Ty(getVMContext()), |
3276 | Size / 64); |
3277 | } |
3278 | |
3279 | return IRType; |
3280 | } |
3281 | |
3282 | if (IRType->getTypeID() == llvm::Type::FP128TyID) |
3283 | return IRType; |
3284 | |
3285 | |
3286 | uint64_t Size = getContext().getTypeSize(Ty); |
3287 | assert((Size == 128 || Size == 256 || Size == 512) && "Invalid type found!"); |
3288 | |
3289 | |
3290 | |
3291 | return llvm::FixedVectorType::get(llvm::Type::getDoubleTy(getVMContext()), |
3292 | Size / 64); |
3293 | } |
3294 | |
3295 | |
3296 | |
3297 | |
3298 | |
3299 | |
3300 | |
3301 | |
3302 | static bool BitsContainNoUserData(QualType Ty, unsigned StartBit, |
3303 | unsigned EndBit, ASTContext &Context) { |
3304 | |
3305 | |
3306 | |
3307 | unsigned TySize = (unsigned)Context.getTypeSize(Ty); |
3308 | if (TySize <= StartBit) |
3309 | return true; |
3310 | |
3311 | if (const ConstantArrayType *AT = Context.getAsConstantArrayType(Ty)) { |
3312 | unsigned EltSize = (unsigned)Context.getTypeSize(AT->getElementType()); |
3313 | unsigned NumElts = (unsigned)AT->getSize().getZExtValue(); |
3314 | |
3315 | |
3316 | for (unsigned i = 0; i != NumElts; ++i) { |
3317 | |
3318 | unsigned EltOffset = i*EltSize; |
3319 | if (EltOffset >= EndBit) break; |
3320 | |
3321 | unsigned EltStart = EltOffset < StartBit ? StartBit-EltOffset :0; |
3322 | if (!BitsContainNoUserData(AT->getElementType(), EltStart, |
3323 | EndBit-EltOffset, Context)) |
3324 | return false; |
3325 | } |
3326 | |
3327 | return true; |
3328 | } |
3329 | |
3330 | if (const RecordType *RT = Ty->getAs<RecordType>()) { |
3331 | const RecordDecl *RD = RT->getDecl(); |
3332 | const ASTRecordLayout &Layout = Context.getASTRecordLayout(RD); |
3333 | |
3334 | |
3335 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) { |
3336 | for (const auto &I : CXXRD->bases()) { |
3337 | assert(!I.isVirtual() && !I.getType()->isDependentType() && |
3338 | "Unexpected base class!"); |
3339 | const auto *Base = |
3340 | cast<CXXRecordDecl>(I.getType()->castAs<RecordType>()->getDecl()); |
3341 | |
3342 | |
3343 | unsigned BaseOffset = Context.toBits(Layout.getBaseClassOffset(Base)); |
3344 | if (BaseOffset >= EndBit) continue; |
3345 | |
3346 | unsigned BaseStart = BaseOffset < StartBit ? StartBit-BaseOffset :0; |
3347 | if (!BitsContainNoUserData(I.getType(), BaseStart, |
3348 | EndBit-BaseOffset, Context)) |
3349 | return false; |
3350 | } |
3351 | } |
3352 | |
3353 | |
3354 | |
3355 | |
3356 | |
3357 | unsigned idx = 0; |
3358 | for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end(); |
3359 | i != e; ++i, ++idx) { |
3360 | unsigned FieldOffset = (unsigned)Layout.getFieldOffset(idx); |
3361 | |
3362 | |
3363 | if (FieldOffset >= EndBit) break; |
3364 | |
3365 | unsigned FieldStart = FieldOffset < StartBit ? StartBit-FieldOffset :0; |
3366 | if (!BitsContainNoUserData(i->getType(), FieldStart, EndBit-FieldOffset, |
3367 | Context)) |
3368 | return false; |
3369 | } |
3370 | |
3371 | |
3372 | |
3373 | return true; |
3374 | } |
3375 | |
3376 | return false; |
3377 | } |
3378 | |
3379 | |
3380 | |
3381 | |
3382 | |
3383 | static bool ContainsFloatAtOffset(llvm::Type *IRType, unsigned IROffset, |
3384 | const llvm::DataLayout &TD) { |
3385 | |
3386 | if (IROffset == 0 && IRType->isFloatTy()) |
3387 | return true; |
3388 | |
3389 | |
3390 | if (llvm::StructType *STy = dyn_cast<llvm::StructType>(IRType)) { |
3391 | const llvm::StructLayout *SL = TD.getStructLayout(STy); |
3392 | unsigned Elt = SL->getElementContainingOffset(IROffset); |
3393 | IROffset -= SL->getElementOffset(Elt); |
3394 | return ContainsFloatAtOffset(STy->getElementType(Elt), IROffset, TD); |
3395 | } |
3396 | |
3397 | |
3398 | if (llvm::ArrayType *ATy = dyn_cast<llvm::ArrayType>(IRType)) { |
3399 | llvm::Type *EltTy = ATy->getElementType(); |
3400 | unsigned EltSize = TD.getTypeAllocSize(EltTy); |
3401 | IROffset -= IROffset/EltSize*EltSize; |
3402 | return ContainsFloatAtOffset(EltTy, IROffset, TD); |
3403 | } |
3404 | |
3405 | return false; |
3406 | } |
3407 | |
3408 | |
3409 | |
3410 | |
3411 | |
3412 | |
3413 | static bool ContainsHalfAtOffset(llvm::Type *IRType, unsigned IROffset, |
3414 | const llvm::DataLayout &TD) { |
3415 | |
3416 | if (IROffset == 0 && IRType->isHalfTy()) |
3417 | return true; |
3418 | |
3419 | |
3420 | if (llvm::StructType *STy = dyn_cast<llvm::StructType>(IRType)) { |
3421 | const llvm::StructLayout *SL = TD.getStructLayout(STy); |
3422 | unsigned Elt = SL->getElementContainingOffset(IROffset); |
3423 | IROffset -= SL->getElementOffset(Elt); |
3424 | return ContainsHalfAtOffset(STy->getElementType(Elt), IROffset, TD); |
3425 | } |
3426 | |
3427 | |
3428 | if (llvm::ArrayType *ATy = dyn_cast<llvm::ArrayType>(IRType)) { |
3429 | llvm::Type *EltTy = ATy->getElementType(); |
3430 | unsigned EltSize = TD.getTypeAllocSize(EltTy); |
3431 | IROffset -= IROffset / EltSize * EltSize; |
3432 | return ContainsHalfAtOffset(EltTy, IROffset, TD); |
3433 | } |
3434 | |
3435 | return false; |
3436 | } |
3437 | |
3438 | |
3439 | |
3440 | llvm::Type *X86_64ABIInfo:: |
3441 | GetSSETypeAtOffset(llvm::Type *IRType, unsigned IROffset, |
3442 | QualType SourceTy, unsigned SourceOffset) const { |
3443 | |
3444 | |
3445 | if (BitsContainNoUserData(SourceTy, SourceOffset * 8 + 32, |
3446 | SourceOffset * 8 + 64, getContext())) { |
3447 | if (ContainsFloatAtOffset(IRType, IROffset, getDataLayout())) |
3448 | return llvm::Type::getFloatTy(getVMContext()); |
3449 | if (ContainsHalfAtOffset(IRType, IROffset + 2, getDataLayout())) |
3450 | return llvm::FixedVectorType::get(llvm::Type::getHalfTy(getVMContext()), |
3451 | 2); |
3452 | |
3453 | return llvm::Type::getHalfTy(getVMContext()); |
3454 | } |
3455 | |
3456 | |
3457 | |
3458 | |
3459 | if (ContainsFloatAtOffset(IRType, IROffset, getDataLayout()) && |
3460 | ContainsFloatAtOffset(IRType, IROffset + 4, getDataLayout())) |
3461 | return llvm::FixedVectorType::get(llvm::Type::getFloatTy(getVMContext()), |
3462 | 2); |
3463 | |
3464 | |
3465 | |
3466 | if (ContainsHalfAtOffset(IRType, IROffset, getDataLayout()) && |
3467 | ContainsHalfAtOffset(IRType, IROffset + 2, getDataLayout()) && |
3468 | ContainsHalfAtOffset(IRType, IROffset + 4, getDataLayout())) |
3469 | return llvm::FixedVectorType::get(llvm::Type::getHalfTy(getVMContext()), 4); |
3470 | |
3471 | |
3472 | |
3473 | |
3474 | if (ContainsFloatAtOffset(IRType, IROffset, getDataLayout()) || |
3475 | ContainsFloatAtOffset(IRType, IROffset + 4, getDataLayout())) |
3476 | return llvm::FixedVectorType::get(llvm::Type::getHalfTy(getVMContext()), 4); |
3477 | |
3478 | return llvm::Type::getDoubleTy(getVMContext()); |
3479 | } |
3480 | |
3481 | |
3482 | |
3483 | |
3484 | |
3485 | |
3486 | |
3487 | |
3488 | |
3489 | |
3490 | |
3491 | |
3492 | |
3493 | |
3494 | |
3495 | |
3496 | llvm::Type *X86_64ABIInfo:: |
3497 | GetINTEGERTypeAtOffset(llvm::Type *IRType, unsigned IROffset, |
3498 | QualType SourceTy, unsigned SourceOffset) const { |
3499 | |
3500 | |
3501 | if (IROffset == 0) { |
3502 | |
3503 | if ((isa<llvm::PointerType>(IRType) && Has64BitPointers) || |
3504 | IRType->isIntegerTy(64)) |
3505 | return IRType; |
3506 | |
3507 | |
3508 | |
3509 | |
3510 | |
3511 | |
3512 | |
3513 | if (IRType->isIntegerTy(8) || IRType->isIntegerTy(16) || |
3514 | IRType->isIntegerTy(32) || |
3515 | (isa<llvm::PointerType>(IRType) && !Has64BitPointers)) { |
3516 | unsigned BitWidth = isa<llvm::PointerType>(IRType) ? 32 : |
3517 | cast<llvm::IntegerType>(IRType)->getBitWidth(); |
3518 | |
3519 | if (BitsContainNoUserData(SourceTy, SourceOffset*8+BitWidth, |
3520 | SourceOffset*8+64, getContext())) |
3521 | return IRType; |
3522 | } |
3523 | } |
3524 | |
3525 | if (llvm::StructType *STy = dyn_cast<llvm::StructType>(IRType)) { |
3526 | |
3527 | const llvm::StructLayout *SL = getDataLayout().getStructLayout(STy); |
3528 | if (IROffset < SL->getSizeInBytes()) { |
3529 | unsigned FieldIdx = SL->getElementContainingOffset(IROffset); |
3530 | IROffset -= SL->getElementOffset(FieldIdx); |
3531 | |
3532 | return GetINTEGERTypeAtOffset(STy->getElementType(FieldIdx), IROffset, |
3533 | SourceTy, SourceOffset); |
3534 | } |
3535 | } |
3536 | |
3537 | if (llvm::ArrayType *ATy = dyn_cast<llvm::ArrayType>(IRType)) { |
3538 | llvm::Type *EltTy = ATy->getElementType(); |
3539 | unsigned EltSize = getDataLayout().getTypeAllocSize(EltTy); |
3540 | unsigned EltOffset = IROffset/EltSize*EltSize; |
3541 | return GetINTEGERTypeAtOffset(EltTy, IROffset-EltOffset, SourceTy, |
3542 | SourceOffset); |
3543 | } |
3544 | |
3545 | |
3546 | |
3547 | unsigned TySizeInBytes = |
3548 | (unsigned)getContext().getTypeSizeInChars(SourceTy).getQuantity(); |
3549 | |
3550 | assert(TySizeInBytes != SourceOffset && "Empty field?"); |
3551 | |
3552 | |
3553 | |
3554 | return llvm::IntegerType::get(getVMContext(), |
3555 | std::min(TySizeInBytes-SourceOffset, 8U)*8); |
3556 | } |
3557 | |
3558 | |
3559 | |
3560 | |
3561 | |
3562 | |
3563 | |
3564 | static llvm::Type * |
3565 | GetX86_64ByValArgumentPair(llvm::Type *Lo, llvm::Type *Hi, |
3566 | const llvm::DataLayout &TD) { |
3567 | |
3568 | |
3569 | |
3570 | |
3571 | unsigned LoSize = (unsigned)TD.getTypeAllocSize(Lo); |
3572 | unsigned HiAlign = TD.getABITypeAlignment(Hi); |
3573 | unsigned HiStart = llvm::alignTo(LoSize, HiAlign); |
3574 | assert(HiStart != 0 && HiStart <= 8 && "Invalid x86-64 argument pair!"); |
3575 | |
3576 | |
3577 | |
3578 | |
3579 | |
3580 | if (HiStart != 8) { |
3581 | |
3582 | |
3583 | |
3584 | |
3585 | |
3586 | if (Lo->isHalfTy() || Lo->isFloatTy()) |
3587 | Lo = llvm::Type::getDoubleTy(Lo->getContext()); |
3588 | else { |
3589 | assert((Lo->isIntegerTy() || Lo->isPointerTy()) |
3590 | && "Invalid/unknown lo type"); |
3591 | Lo = llvm::Type::getInt64Ty(Lo->getContext()); |
3592 | } |
3593 | } |
3594 | |
3595 | llvm::StructType *Result = llvm::StructType::get(Lo, Hi); |
3596 | |
3597 | |
3598 | assert(TD.getStructLayout(Result)->getElementOffset(1) == 8 && |
3599 | "Invalid x86-64 argument pair!"); |
3600 | return Result; |
3601 | } |
3602 | |
3603 | ABIArgInfo X86_64ABIInfo:: |
3604 | classifyReturnType(QualType RetTy) const { |
3605 | |
3606 | |
3607 | X86_64ABIInfo::Class Lo, Hi; |
3608 | classify(RetTy, 0, Lo, Hi, true); |
3609 | |
3610 | |
3611 | assert((Hi != Memory || Lo == Memory) && "Invalid memory classification."); |
3612 | assert((Hi != SSEUp || Lo == SSE) && "Invalid SSEUp classification."); |
3613 | |
3614 | llvm::Type *ResType = nullptr; |
3615 | switch (Lo) { |
3616 | case NoClass: |
3617 | if (Hi == NoClass) |
3618 | return ABIArgInfo::getIgnore(); |
3619 | |
3620 | |
3621 | assert((Hi == SSE || Hi == Integer || Hi == X87Up) && |
3622 | "Unknown missing lo part"); |
3623 | break; |
3624 | |
3625 | case SSEUp: |
3626 | case X87Up: |
3627 | llvm_unreachable("Invalid classification for lo word."); |
3628 | |
3629 | |
3630 | |
3631 | case Memory: |
3632 | return getIndirectReturnResult(RetTy); |
3633 | |
3634 | |
3635 | |
3636 | case Integer: |
3637 | ResType = GetINTEGERTypeAtOffset(CGT.ConvertType(RetTy), 0, RetTy, 0); |
3638 | |
3639 | |
3640 | |
3641 | if (Hi == NoClass && isa<llvm::IntegerType>(ResType)) { |
3642 | |
3643 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
3644 | RetTy = EnumTy->getDecl()->getIntegerType(); |
3645 | |
3646 | if (RetTy->isIntegralOrEnumerationType() && |
3647 | isPromotableIntegerTypeForABI(RetTy)) |
3648 | return ABIArgInfo::getExtend(RetTy); |
3649 | } |
3650 | break; |
3651 | |
3652 | |
3653 | |
3654 | case SSE: |
3655 | ResType = GetSSETypeAtOffset(CGT.ConvertType(RetTy), 0, RetTy, 0); |
3656 | break; |
3657 | |
3658 | |
3659 | |
3660 | case X87: |
3661 | ResType = llvm::Type::getX86_FP80Ty(getVMContext()); |
3662 | break; |
3663 | |
3664 | |
3665 | |
3666 | |
3667 | case ComplexX87: |
3668 | assert(Hi == ComplexX87 && "Unexpected ComplexX87 classification."); |
3669 | ResType = llvm::StructType::get(llvm::Type::getX86_FP80Ty(getVMContext()), |
3670 | llvm::Type::getX86_FP80Ty(getVMContext())); |
3671 | break; |
3672 | } |
3673 | |
3674 | llvm::Type *HighPart = nullptr; |
3675 | switch (Hi) { |
3676 | |
3677 | |
3678 | case Memory: |
3679 | case X87: |
3680 | llvm_unreachable("Invalid classification for hi word."); |
3681 | |
3682 | case ComplexX87: |
3683 | case NoClass: |
3684 | break; |
3685 | |
3686 | case Integer: |
3687 | HighPart = GetINTEGERTypeAtOffset(CGT.ConvertType(RetTy), 8, RetTy, 8); |
3688 | if (Lo == NoClass) |
3689 | return ABIArgInfo::getDirect(HighPart, 8); |
3690 | break; |
3691 | case SSE: |
3692 | HighPart = GetSSETypeAtOffset(CGT.ConvertType(RetTy), 8, RetTy, 8); |
3693 | if (Lo == NoClass) |
3694 | return ABIArgInfo::getDirect(HighPart, 8); |
3695 | break; |
3696 | |
3697 | |
3698 | |
3699 | |
3700 | |
3701 | |
3702 | case SSEUp: |
3703 | assert(Lo == SSE && "Unexpected SSEUp classification."); |
3704 | ResType = GetByteVectorType(RetTy); |
3705 | break; |
3706 | |
3707 | |
3708 | |
3709 | case X87Up: |
3710 | |
3711 | |
3712 | |
3713 | |
3714 | if (Lo != X87) { |
3715 | HighPart = GetSSETypeAtOffset(CGT.ConvertType(RetTy), 8, RetTy, 8); |
3716 | if (Lo == NoClass) |
3717 | return ABIArgInfo::getDirect(HighPart, 8); |
3718 | } |
3719 | break; |
3720 | } |
3721 | |
3722 | |
3723 | |
3724 | |
3725 | if (HighPart) |
3726 | ResType = GetX86_64ByValArgumentPair(ResType, HighPart, getDataLayout()); |
3727 | |
3728 | return ABIArgInfo::getDirect(ResType); |
3729 | } |
3730 | |
3731 | ABIArgInfo X86_64ABIInfo::classifyArgumentType( |
3732 | QualType Ty, unsigned freeIntRegs, unsigned &neededInt, unsigned &neededSSE, |
3733 | bool isNamedArg) |
3734 | const |
3735 | { |
3736 | Ty = useFirstFieldIfTransparentUnion(Ty); |
3737 | |
3738 | X86_64ABIInfo::Class Lo, Hi; |
3739 | classify(Ty, 0, Lo, Hi, isNamedArg); |
3740 | |
3741 | |
3742 | |
3743 | assert((Hi != Memory || Lo == Memory) && "Invalid memory classification."); |
3744 | assert((Hi != SSEUp || Lo == SSE) && "Invalid SSEUp classification."); |
3745 | |
3746 | neededInt = 0; |
3747 | neededSSE = 0; |
3748 | llvm::Type *ResType = nullptr; |
3749 | switch (Lo) { |
3750 | case NoClass: |
3751 | if (Hi == NoClass) |
3752 | return ABIArgInfo::getIgnore(); |
3753 | |
3754 | |
3755 | assert((Hi == SSE || Hi == Integer || Hi == X87Up) && |
3756 | "Unknown missing lo part"); |
3757 | break; |
3758 | |
3759 | |
3760 | |
3761 | case Memory: |
3762 | |
3763 | |
3764 | |
3765 | case X87: |
3766 | case ComplexX87: |
3767 | if (getRecordArgABI(Ty, getCXXABI()) == CGCXXABI::RAA_Indirect) |
3768 | ++neededInt; |
3769 | return getIndirectResult(Ty, freeIntRegs); |
3770 | |
3771 | case SSEUp: |
3772 | case X87Up: |
3773 | llvm_unreachable("Invalid classification for lo word."); |
3774 | |
3775 | |
3776 | |
3777 | |
3778 | case Integer: |
3779 | ++neededInt; |
3780 | |
3781 | |
3782 | ResType = GetINTEGERTypeAtOffset(CGT.ConvertType(Ty), 0, Ty, 0); |
3783 | |
3784 | |
3785 | |
3786 | if (Hi == NoClass && isa<llvm::IntegerType>(ResType)) { |
3787 | |
3788 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
3789 | Ty = EnumTy->getDecl()->getIntegerType(); |
3790 | |
3791 | if (Ty->isIntegralOrEnumerationType() && |
3792 | isPromotableIntegerTypeForABI(Ty)) |
3793 | return ABIArgInfo::getExtend(Ty); |
3794 | } |
3795 | |
3796 | break; |
3797 | |
3798 | |
3799 | |
3800 | |
3801 | case SSE: { |
3802 | llvm::Type *IRType = CGT.ConvertType(Ty); |
3803 | ResType = GetSSETypeAtOffset(IRType, 0, Ty, 0); |
3804 | ++neededSSE; |
3805 | break; |
3806 | } |
3807 | } |
3808 | |
3809 | llvm::Type *HighPart = nullptr; |
3810 | switch (Hi) { |
3811 | |
3812 | |
3813 | |
3814 | case Memory: |
3815 | case X87: |
3816 | case ComplexX87: |
3817 | llvm_unreachable("Invalid classification for hi word."); |
3818 | |
3819 | case NoClass: break; |
3820 | |
3821 | case Integer: |
3822 | ++neededInt; |
3823 | |
3824 | HighPart = GetINTEGERTypeAtOffset(CGT.ConvertType(Ty), 8, Ty, 8); |
3825 | |
3826 | if (Lo == NoClass) |
3827 | return ABIArgInfo::getDirect(HighPart, 8); |
3828 | break; |
3829 | |
3830 | |
3831 | |
3832 | case X87Up: |
3833 | case SSE: |
3834 | HighPart = GetSSETypeAtOffset(CGT.ConvertType(Ty), 8, Ty, 8); |
3835 | |
3836 | if (Lo == NoClass) |
3837 | return ABIArgInfo::getDirect(HighPart, 8); |
3838 | |
3839 | ++neededSSE; |
3840 | break; |
3841 | |
3842 | |
3843 | |
3844 | |
3845 | case SSEUp: |
3846 | assert(Lo == SSE && "Unexpected SSEUp classification"); |
3847 | ResType = GetByteVectorType(Ty); |
3848 | break; |
3849 | } |
3850 | |
3851 | |
3852 | |
3853 | |
3854 | if (HighPart) |
3855 | ResType = GetX86_64ByValArgumentPair(ResType, HighPart, getDataLayout()); |
3856 | |
3857 | return ABIArgInfo::getDirect(ResType); |
3858 | } |
3859 | |
3860 | ABIArgInfo |
3861 | X86_64ABIInfo::classifyRegCallStructTypeImpl(QualType Ty, unsigned &NeededInt, |
3862 | unsigned &NeededSSE) const { |
3863 | auto RT = Ty->getAs<RecordType>(); |
| 2 | | Assuming the object is not a 'RecordType' | |
|
| 3 | | 'RT' initialized to a null pointer value | |
|
3864 | assert(RT && "classifyRegCallStructType only valid with struct types"); |
3865 | |
3866 | if (RT->getDecl()->hasFlexibleArrayMember()) |
| 4 | | Called C++ object pointer is null |
|
3867 | return getIndirectReturnResult(Ty); |
3868 | |
3869 | |
3870 | if (auto CXXRD = dyn_cast<CXXRecordDecl>(RT->getDecl())) { |
3871 | if (CXXRD->isDynamicClass()) { |
3872 | NeededInt = NeededSSE = 0; |
3873 | return getIndirectReturnResult(Ty); |
3874 | } |
3875 | |
3876 | for (const auto &I : CXXRD->bases()) |
3877 | if (classifyRegCallStructTypeImpl(I.getType(), NeededInt, NeededSSE) |
3878 | .isIndirect()) { |
3879 | NeededInt = NeededSSE = 0; |
3880 | return getIndirectReturnResult(Ty); |
3881 | } |
3882 | } |
3883 | |
3884 | |
3885 | for (const auto *FD : RT->getDecl()->fields()) { |
3886 | if (FD->getType()->isRecordType() && !FD->getType()->isUnionType()) { |
3887 | if (classifyRegCallStructTypeImpl(FD->getType(), NeededInt, NeededSSE) |
3888 | .isIndirect()) { |
3889 | NeededInt = NeededSSE = 0; |
3890 | return getIndirectReturnResult(Ty); |
3891 | } |
3892 | } else { |
3893 | unsigned LocalNeededInt, LocalNeededSSE; |
3894 | if (classifyArgumentType(FD->getType(), UINT_MAX, LocalNeededInt, |
3895 | LocalNeededSSE, true) |
3896 | .isIndirect()) { |
3897 | NeededInt = NeededSSE = 0; |
3898 | return getIndirectReturnResult(Ty); |
3899 | } |
3900 | NeededInt += LocalNeededInt; |
3901 | NeededSSE += LocalNeededSSE; |
3902 | } |
3903 | } |
3904 | |
3905 | return ABIArgInfo::getDirect(); |
3906 | } |
3907 | |
3908 | ABIArgInfo X86_64ABIInfo::classifyRegCallStructType(QualType Ty, |
3909 | unsigned &NeededInt, |
3910 | unsigned &NeededSSE) const { |
3911 | |
3912 | NeededInt = 0; |
3913 | NeededSSE = 0; |
3914 | |
3915 | return classifyRegCallStructTypeImpl(Ty, NeededInt, NeededSSE); |
| 1 | Calling 'X86_64ABIInfo::classifyRegCallStructTypeImpl' | |
|
3916 | } |
3917 | |
3918 | void X86_64ABIInfo::computeInfo(CGFunctionInfo &FI) const { |
3919 | |
3920 | const unsigned CallingConv = FI.getCallingConvention(); |
3921 | |
3922 | |
3923 | |
3924 | if (CallingConv == llvm::CallingConv::Win64) { |
3925 | WinX86_64ABIInfo Win64ABIInfo(CGT, AVXLevel); |
3926 | Win64ABIInfo.computeInfo(FI); |
3927 | return; |
3928 | } |
3929 | |
3930 | bool IsRegCall = CallingConv == llvm::CallingConv::X86_RegCall; |
3931 | |
3932 | |
3933 | unsigned FreeIntRegs = IsRegCall ? 11 : 6; |
3934 | unsigned FreeSSERegs = IsRegCall ? 16 : 8; |
3935 | unsigned NeededInt, NeededSSE; |
3936 | |
3937 | if (!::classifyReturnType(getCXXABI(), FI, *this)) { |
3938 | if (IsRegCall && FI.getReturnType()->getTypePtr()->isRecordType() && |
3939 | !FI.getReturnType()->getTypePtr()->isUnionType()) { |
3940 | FI.getReturnInfo() = |
3941 | classifyRegCallStructType(FI.getReturnType(), NeededInt, NeededSSE); |
3942 | if (FreeIntRegs >= NeededInt && FreeSSERegs >= NeededSSE) { |
3943 | FreeIntRegs -= NeededInt; |
3944 | FreeSSERegs -= NeededSSE; |
3945 | } else { |
3946 | FI.getReturnInfo() = getIndirectReturnResult(FI.getReturnType()); |
3947 | } |
3948 | } else if (IsRegCall && FI.getReturnType()->getAs<ComplexType>() && |
3949 | getContext().getCanonicalType(FI.getReturnType() |
3950 | ->getAs<ComplexType>() |
3951 | ->getElementType()) == |
3952 | getContext().LongDoubleTy) |
3953 | |
3954 | |
3955 | FI.getReturnInfo() = getIndirectReturnResult(FI.getReturnType()); |
3956 | else |
3957 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
3958 | } |
3959 | |
3960 | |
3961 | |
3962 | if (FI.getReturnInfo().isIndirect()) |
3963 | --FreeIntRegs; |
3964 | |
3965 | |
3966 | if (FI.isChainCall()) |
3967 | ++FreeIntRegs; |
3968 | |
3969 | unsigned NumRequiredArgs = FI.getNumRequiredArgs(); |
3970 | |
3971 | |
3972 | unsigned ArgNo = 0; |
3973 | for (CGFunctionInfo::arg_iterator it = FI.arg_begin(), ie = FI.arg_end(); |
3974 | it != ie; ++it, ++ArgNo) { |
3975 | bool IsNamedArg = ArgNo < NumRequiredArgs; |
3976 | |
3977 | if (IsRegCall && it->type->isStructureOrClassType()) |
3978 | it->info = classifyRegCallStructType(it->type, NeededInt, NeededSSE); |
3979 | else |
3980 | it->info = classifyArgumentType(it->type, FreeIntRegs, NeededInt, |
3981 | NeededSSE, IsNamedArg); |
3982 | |
3983 | |
3984 | |
3985 | |
3986 | |
3987 | if (FreeIntRegs >= NeededInt && FreeSSERegs >= NeededSSE) { |
3988 | FreeIntRegs -= NeededInt; |
3989 | FreeSSERegs -= NeededSSE; |
3990 | } else { |
3991 | it->info = getIndirectResult(it->type, FreeIntRegs); |
3992 | } |
3993 | } |
3994 | } |
3995 | |
3996 | static Address EmitX86_64VAArgFromMemory(CodeGenFunction &CGF, |
3997 | Address VAListAddr, QualType Ty) { |
3998 | Address overflow_arg_area_p = |
3999 | CGF.Builder.CreateStructGEP(VAListAddr, 2, "overflow_arg_area_p"); |
4000 | llvm::Value *overflow_arg_area = |
4001 | CGF.Builder.CreateLoad(overflow_arg_area_p, "overflow_arg_area"); |
4002 | |
4003 | |
4004 | |
4005 | |
4006 | |
4007 | CharUnits Align = CGF.getContext().getTypeAlignInChars(Ty); |
4008 | if (Align > CharUnits::fromQuantity(8)) { |
4009 | overflow_arg_area = emitRoundPointerUpToAlignment(CGF, overflow_arg_area, |
4010 | Align); |
4011 | } |
4012 | |
4013 | |
4014 | llvm::Type *LTy = CGF.ConvertTypeForMem(Ty); |
4015 | llvm::Value *Res = |
4016 | CGF.Builder.CreateBitCast(overflow_arg_area, |
4017 | llvm::PointerType::getUnqual(LTy)); |
4018 | |
4019 | |
4020 | |
4021 | |
4022 | |
4023 | |
4024 | uint64_t SizeInBytes = (CGF.getContext().getTypeSize(Ty) + 7) / 8; |
4025 | llvm::Value *Offset = |
4026 | llvm::ConstantInt::get(CGF.Int32Ty, (SizeInBytes + 7) & ~7); |
4027 | overflow_arg_area = CGF.Builder.CreateGEP(CGF.Int8Ty, overflow_arg_area, |
4028 | Offset, "overflow_arg_area.next"); |
4029 | CGF.Builder.CreateStore(overflow_arg_area, overflow_arg_area_p); |
4030 | |
4031 | |
4032 | return Address(Res, Align); |
4033 | } |
4034 | |
4035 | Address X86_64ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
4036 | QualType Ty) const { |
4037 | |
4038 | |
4039 | |
4040 | |
4041 | |
4042 | |
4043 | |
4044 | unsigned neededInt, neededSSE; |
4045 | |
4046 | Ty = getContext().getCanonicalType(Ty); |
4047 | ABIArgInfo AI = classifyArgumentType(Ty, 0, neededInt, neededSSE, |
4048 | false); |
4049 | |
4050 | |
4051 | |
4052 | if (!neededInt && !neededSSE) |
4053 | return EmitX86_64VAArgFromMemory(CGF, VAListAddr, Ty); |
4054 | |
4055 | |
4056 | |
4057 | |
4058 | |
4059 | |
4060 | |
4061 | |
4062 | |
4063 | |
4064 | |
4065 | |
4066 | llvm::Value *InRegs = nullptr; |
4067 | Address gp_offset_p = Address::invalid(), fp_offset_p = Address::invalid(); |
4068 | llvm::Value *gp_offset = nullptr, *fp_offset = nullptr; |
4069 | if (neededInt) { |
4070 | gp_offset_p = CGF.Builder.CreateStructGEP(VAListAddr, 0, "gp_offset_p"); |
4071 | gp_offset = CGF.Builder.CreateLoad(gp_offset_p, "gp_offset"); |
4072 | InRegs = llvm::ConstantInt::get(CGF.Int32Ty, 48 - neededInt * 8); |
4073 | InRegs = CGF.Builder.CreateICmpULE(gp_offset, InRegs, "fits_in_gp"); |
4074 | } |
4075 | |
4076 | if (neededSSE) { |
4077 | fp_offset_p = CGF.Builder.CreateStructGEP(VAListAddr, 1, "fp_offset_p"); |
4078 | fp_offset = CGF.Builder.CreateLoad(fp_offset_p, "fp_offset"); |
4079 | llvm::Value *FitsInFP = |
4080 | llvm::ConstantInt::get(CGF.Int32Ty, 176 - neededSSE * 16); |
4081 | FitsInFP = CGF.Builder.CreateICmpULE(fp_offset, FitsInFP, "fits_in_fp"); |
4082 | InRegs = InRegs ? CGF.Builder.CreateAnd(InRegs, FitsInFP) : FitsInFP; |
4083 | } |
4084 | |
4085 | llvm::BasicBlock *InRegBlock = CGF.createBasicBlock("vaarg.in_reg"); |
4086 | llvm::BasicBlock *InMemBlock = CGF.createBasicBlock("vaarg.in_mem"); |
4087 | llvm::BasicBlock *ContBlock = CGF.createBasicBlock("vaarg.end"); |
4088 | CGF.Builder.CreateCondBr(InRegs, InRegBlock, InMemBlock); |
4089 | |
4090 | |
4091 | |
4092 | CGF.EmitBlock(InRegBlock); |
4093 | |
4094 | |
4095 | |
4096 | |
4097 | |
4098 | |
4099 | |
4100 | |
4101 | |
4102 | |
4103 | |
4104 | llvm::Type *LTy = CGF.ConvertTypeForMem(Ty); |
4105 | llvm::Value *RegSaveArea = CGF.Builder.CreateLoad( |
4106 | CGF.Builder.CreateStructGEP(VAListAddr, 3), "reg_save_area"); |
4107 | |
4108 | Address RegAddr = Address::invalid(); |
4109 | if (neededInt && neededSSE) { |
4110 | |
4111 | assert(AI.isDirect() && "Unexpected ABI info for mixed regs"); |
4112 | llvm::StructType *ST = cast<llvm::StructType>(AI.getCoerceToType()); |
4113 | Address Tmp = CGF.CreateMemTemp(Ty); |
4114 | Tmp = CGF.Builder.CreateElementBitCast(Tmp, ST); |
4115 | assert(ST->getNumElements() == 2 && "Unexpected ABI info for mixed regs"); |
4116 | llvm::Type *TyLo = ST->getElementType(0); |
4117 | llvm::Type *TyHi = ST->getElementType(1); |
4118 | assert((TyLo->isFPOrFPVectorTy() ^ TyHi->isFPOrFPVectorTy()) && |
4119 | "Unexpected ABI info for mixed regs"); |
4120 | llvm::Type *PTyLo = llvm::PointerType::getUnqual(TyLo); |
4121 | llvm::Type *PTyHi = llvm::PointerType::getUnqual(TyHi); |
4122 | llvm::Value *GPAddr = |
4123 | CGF.Builder.CreateGEP(CGF.Int8Ty, RegSaveArea, gp_offset); |
4124 | llvm::Value *FPAddr = |
4125 | CGF.Builder.CreateGEP(CGF.Int8Ty, RegSaveArea, fp_offset); |
4126 | llvm::Value *RegLoAddr = TyLo->isFPOrFPVectorTy() ? FPAddr : GPAddr; |
4127 | llvm::Value *RegHiAddr = TyLo->isFPOrFPVectorTy() ? GPAddr : FPAddr; |
4128 | |
4129 | |
4130 | |
4131 | llvm::Value *V = CGF.Builder.CreateAlignedLoad( |
4132 | TyLo, CGF.Builder.CreateBitCast(RegLoAddr, PTyLo), |
4133 | CharUnits::fromQuantity(getDataLayout().getABITypeAlignment(TyLo))); |
4134 | CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 0)); |
4135 | |
4136 | |
4137 | V = CGF.Builder.CreateAlignedLoad( |
4138 | TyHi, CGF.Builder.CreateBitCast(RegHiAddr, PTyHi), |
4139 | CharUnits::fromQuantity(getDataLayout().getABITypeAlignment(TyHi))); |
4140 | CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 1)); |
4141 | |
4142 | RegAddr = CGF.Builder.CreateElementBitCast(Tmp, LTy); |
4143 | } else if (neededInt) { |
4144 | RegAddr = Address(CGF.Builder.CreateGEP(CGF.Int8Ty, RegSaveArea, gp_offset), |
4145 | CharUnits::fromQuantity(8)); |
4146 | RegAddr = CGF.Builder.CreateElementBitCast(RegAddr, LTy); |
4147 | |
4148 | |
4149 | auto TInfo = getContext().getTypeInfoInChars(Ty); |
4150 | uint64_t TySize = TInfo.Width.getQuantity(); |
4151 | CharUnits TyAlign = TInfo.Align; |
4152 | |
4153 | |
4154 | |
4155 | if (TyAlign.getQuantity() > 8) { |
4156 | Address Tmp = CGF.CreateMemTemp(Ty); |
4157 | CGF.Builder.CreateMemCpy(Tmp, RegAddr, TySize, false); |
4158 | RegAddr = Tmp; |
4159 | } |
4160 | |
4161 | } else if (neededSSE == 1) { |
4162 | RegAddr = Address(CGF.Builder.CreateGEP(CGF.Int8Ty, RegSaveArea, fp_offset), |
4163 | CharUnits::fromQuantity(16)); |
4164 | RegAddr = CGF.Builder.CreateElementBitCast(RegAddr, LTy); |
4165 | } else { |
4166 | assert(neededSSE == 2 && "Invalid number of needed registers!"); |
4167 | |
4168 | |
4169 | |
4170 | |
4171 | |
4172 | |
4173 | Address RegAddrLo = Address(CGF.Builder.CreateGEP(CGF.Int8Ty, RegSaveArea, |
4174 | fp_offset), |
4175 | CharUnits::fromQuantity(16)); |
4176 | Address RegAddrHi = |
4177 | CGF.Builder.CreateConstInBoundsByteGEP(RegAddrLo, |
4178 | CharUnits::fromQuantity(16)); |
4179 | llvm::Type *ST = AI.canHaveCoerceToType() |
4180 | ? AI.getCoerceToType() |
4181 | : llvm::StructType::get(CGF.DoubleTy, CGF.DoubleTy); |
4182 | llvm::Value *V; |
4183 | Address Tmp = CGF.CreateMemTemp(Ty); |
4184 | Tmp = CGF.Builder.CreateElementBitCast(Tmp, ST); |
4185 | V = CGF.Builder.CreateLoad(CGF.Builder.CreateElementBitCast( |
4186 | RegAddrLo, ST->getStructElementType(0))); |
4187 | CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 0)); |
4188 | V = CGF.Builder.CreateLoad(CGF.Builder.CreateElementBitCast( |
4189 | RegAddrHi, ST->getStructElementType(1))); |
4190 | CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 1)); |
4191 | |
4192 | RegAddr = CGF.Builder.CreateElementBitCast(Tmp, LTy); |
4193 | } |
4194 | |
4195 | |
4196 | |
4197 | |
4198 | if (neededInt) { |
4199 | llvm::Value *Offset = llvm::ConstantInt::get(CGF.Int32Ty, neededInt * 8); |
4200 | CGF.Builder.CreateStore(CGF.Builder.CreateAdd(gp_offset, Offset), |
4201 | gp_offset_p); |
4202 | } |
4203 | if (neededSSE) { |
4204 | llvm::Value *Offset = llvm::ConstantInt::get(CGF.Int32Ty, neededSSE * 16); |
4205 | CGF.Builder.CreateStore(CGF.Builder.CreateAdd(fp_offset, Offset), |
4206 | fp_offset_p); |
4207 | } |
4208 | CGF.EmitBranch(ContBlock); |
4209 | |
4210 | |
4211 | |
4212 | CGF.EmitBlock(InMemBlock); |
4213 | Address MemAddr = EmitX86_64VAArgFromMemory(CGF, VAListAddr, Ty); |
4214 | |
4215 | |
4216 | |
4217 | CGF.EmitBlock(ContBlock); |
4218 | Address ResAddr = emitMergePHI(CGF, RegAddr, InRegBlock, MemAddr, InMemBlock, |
4219 | "vaarg.addr"); |
4220 | return ResAddr; |
4221 | } |
4222 | |
4223 | Address X86_64ABIInfo::EmitMSVAArg(CodeGenFunction &CGF, Address VAListAddr, |
4224 | QualType Ty) const { |
4225 | |
4226 | |
4227 | uint64_t Width = getContext().getTypeSize(Ty); |
4228 | bool IsIndirect = Width > 64 || !llvm::isPowerOf2_64(Width); |
4229 | |
4230 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, IsIndirect, |
4231 | CGF.getContext().getTypeInfoInChars(Ty), |
4232 | CharUnits::fromQuantity(8), |
4233 | false); |
4234 | } |
4235 | |
4236 | ABIArgInfo WinX86_64ABIInfo::reclassifyHvaArgForVectorCall( |
4237 | QualType Ty, unsigned &FreeSSERegs, const ABIArgInfo ¤t) const { |
4238 | const Type *Base = nullptr; |
4239 | uint64_t NumElts = 0; |
4240 | |
4241 | if (!Ty->isBuiltinType() && !Ty->isVectorType() && |
4242 | isHomogeneousAggregate(Ty, Base, NumElts) && FreeSSERegs >= NumElts) { |
4243 | FreeSSERegs -= NumElts; |
4244 | return getDirectX86Hva(); |
4245 | } |
4246 | return current; |
4247 | } |
4248 | |
4249 | ABIArgInfo WinX86_64ABIInfo::classify(QualType Ty, unsigned &FreeSSERegs, |
4250 | bool IsReturnType, bool IsVectorCall, |
4251 | bool IsRegCall) const { |
4252 | |
4253 | if (Ty->isVoidType()) |
4254 | return ABIArgInfo::getIgnore(); |
4255 | |
4256 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
4257 | Ty = EnumTy->getDecl()->getIntegerType(); |
4258 | |
4259 | TypeInfo Info = getContext().getTypeInfo(Ty); |
4260 | uint64_t Width = Info.Width; |
4261 | CharUnits Align = getContext().toCharUnitsFromBits(Info.Align); |
4262 | |
4263 | const RecordType *RT = Ty->getAs<RecordType>(); |
4264 | if (RT) { |
4265 | if (!IsReturnType) { |
4266 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(RT, getCXXABI())) |
4267 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
4268 | } |
4269 | |
4270 | if (RT->getDecl()->hasFlexibleArrayMember()) |
4271 | return getNaturalAlignIndirect(Ty, false); |
4272 | |
4273 | } |
4274 | |
4275 | const Type *Base = nullptr; |
4276 | uint64_t NumElts = 0; |
4277 | |
4278 | |
4279 | if ((IsVectorCall || IsRegCall) && |
4280 | isHomogeneousAggregate(Ty, Base, NumElts)) { |
4281 | if (IsRegCall) { |
4282 | if (FreeSSERegs >= NumElts) { |
4283 | FreeSSERegs -= NumElts; |
4284 | if (IsReturnType || Ty->isBuiltinType() || Ty->isVectorType()) |
4285 | return ABIArgInfo::getDirect(); |
4286 | return ABIArgInfo::getExpand(); |
4287 | } |
4288 | return ABIArgInfo::getIndirect(Align, false); |
4289 | } else if (IsVectorCall) { |
4290 | if (FreeSSERegs >= NumElts && |
4291 | (IsReturnType || Ty->isBuiltinType() || Ty->isVectorType())) { |
4292 | FreeSSERegs -= NumElts; |
4293 | return ABIArgInfo::getDirect(); |
4294 | } else if (IsReturnType) { |
4295 | return ABIArgInfo::getExpand(); |
4296 | } else if (!Ty->isBuiltinType() && !Ty->isVectorType()) { |
4297 | |
4298 | return ABIArgInfo::getIndirect(Align, false); |
4299 | } |
4300 | } |
4301 | } |
4302 | |
4303 | if (Ty->isMemberPointerType()) { |
4304 | |
4305 | |
4306 | llvm::Type *LLTy = CGT.ConvertType(Ty); |
4307 | if (LLTy->isPointerTy() || LLTy->isIntegerTy()) |
4308 | return ABIArgInfo::getDirect(); |
4309 | } |
4310 | |
4311 | if (RT || Ty->isAnyComplexType() || Ty->isMemberPointerType()) { |
4312 | |
4313 | |
4314 | if (Width > 64 || !llvm::isPowerOf2_64(Width)) |
4315 | return getNaturalAlignIndirect(Ty, false); |
4316 | |
4317 | |
4318 | return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(), Width)); |
4319 | } |
4320 | |
4321 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) { |
4322 | switch (BT->getKind()) { |
4323 | case BuiltinType::Bool: |
4324 | |
4325 | |
4326 | return ABIArgInfo::getExtend(Ty); |
4327 | |
4328 | case BuiltinType::LongDouble: |
4329 | |
4330 | |
4331 | if (IsMingw64) { |
4332 | const llvm::fltSemantics *LDF = &getTarget().getLongDoubleFormat(); |
4333 | if (LDF == &llvm::APFloat::x87DoubleExtended()) |
4334 | return ABIArgInfo::getIndirect(Align, false); |
4335 | } |
4336 | break; |
4337 | |
4338 | case BuiltinType::Int128: |
4339 | case BuiltinType::UInt128: |
4340 | |
4341 | |
4342 | |
4343 | if (!IsReturnType) |
4344 | return ABIArgInfo::getIndirect(Align, false); |
4345 | |
4346 | |
4347 | |
4348 | return ABIArgInfo::getDirect(llvm::FixedVectorType::get( |
4349 | llvm::Type::getInt64Ty(getVMContext()), 2)); |
4350 | |
4351 | default: |
4352 | break; |
4353 | } |
4354 | } |
4355 | |
4356 | if (Ty->isExtIntType()) { |
4357 | |
4358 | |
4359 | |
4360 | |
4361 | |
4362 | if (Width <= 64) |
4363 | return ABIArgInfo::getDirect(); |
4364 | return ABIArgInfo::getIndirect(Align, false); |
4365 | } |
4366 | |
4367 | return ABIArgInfo::getDirect(); |
4368 | } |
4369 | |
4370 | void WinX86_64ABIInfo::computeInfo(CGFunctionInfo &FI) const { |
4371 | const unsigned CC = FI.getCallingConvention(); |
4372 | bool IsVectorCall = CC == llvm::CallingConv::X86_VectorCall; |
4373 | bool IsRegCall = CC == llvm::CallingConv::X86_RegCall; |
4374 | |
4375 | |
4376 | |
4377 | if (CC == llvm::CallingConv::X86_64_SysV) { |
4378 | X86_64ABIInfo SysVABIInfo(CGT, AVXLevel); |
4379 | SysVABIInfo.computeInfo(FI); |
4380 | return; |
4381 | } |
4382 | |
4383 | unsigned FreeSSERegs = 0; |
4384 | if (IsVectorCall) { |
4385 | |
4386 | FreeSSERegs = 4; |
4387 | } else if (IsRegCall) { |
4388 | |
4389 | FreeSSERegs = 16; |
4390 | } |
4391 | |
4392 | if (!getCXXABI().classifyReturnType(FI)) |
4393 | FI.getReturnInfo() = classify(FI.getReturnType(), FreeSSERegs, true, |
4394 | IsVectorCall, IsRegCall); |
4395 | |
4396 | if (IsVectorCall) { |
4397 | |
4398 | FreeSSERegs = 6; |
4399 | } else if (IsRegCall) { |
4400 | |
4401 | FreeSSERegs = 16; |
4402 | } |
4403 | |
4404 | unsigned ArgNum = 0; |
4405 | unsigned ZeroSSERegs = 0; |
4406 | for (auto &I : FI.arguments()) { |
4407 | |
4408 | |
4409 | |
4410 | unsigned *MaybeFreeSSERegs = |
4411 | (IsVectorCall && ArgNum >= 6) ? &ZeroSSERegs : &FreeSSERegs; |
4412 | I.info = |
4413 | classify(I.type, *MaybeFreeSSERegs, false, IsVectorCall, IsRegCall); |
4414 | ++ArgNum; |
4415 | } |
4416 | |
4417 | if (IsVectorCall) { |
4418 | |
4419 | |
4420 | for (auto &I : FI.arguments()) |
4421 | I.info = reclassifyHvaArgForVectorCall(I.type, FreeSSERegs, I.info); |
4422 | } |
4423 | } |
4424 | |
4425 | Address WinX86_64ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
4426 | QualType Ty) const { |
4427 | |
4428 | |
4429 | uint64_t Width = getContext().getTypeSize(Ty); |
4430 | bool IsIndirect = Width > 64 || !llvm::isPowerOf2_64(Width); |
4431 | |
4432 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, IsIndirect, |
4433 | CGF.getContext().getTypeInfoInChars(Ty), |
4434 | CharUnits::fromQuantity(8), |
4435 | false); |
4436 | } |
4437 | |
4438 | static bool PPC_initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
4439 | llvm::Value *Address, bool Is64Bit, |
4440 | bool IsAIX) { |
4441 | |
4442 | |
4443 | |
4444 | CodeGen::CGBuilderTy &Builder = CGF.Builder; |
4445 | |
4446 | llvm::IntegerType *i8 = CGF.Int8Ty; |
4447 | llvm::Value *Four8 = llvm::ConstantInt::get(i8, 4); |
4448 | llvm::Value *Eight8 = llvm::ConstantInt::get(i8, 8); |
4449 | llvm::Value *Sixteen8 = llvm::ConstantInt::get(i8, 16); |
4450 | |
4451 | |
4452 | AssignToArrayRange(Builder, Address, Is64Bit ? Eight8 : Four8, 0, 31); |
4453 | |
4454 | |
4455 | AssignToArrayRange(Builder, Address, Eight8, 32, 63); |
4456 | |
4457 | |
4458 | |
4459 | |
4460 | |
4461 | |
4462 | AssignToArrayRange(Builder, Address, Is64Bit ? Eight8 : Four8, 64, 67); |
4463 | |
4464 | |
4465 | |
4466 | |
4467 | AssignToArrayRange(Builder, Address, Four8, 68, 76); |
4468 | |
4469 | |
4470 | AssignToArrayRange(Builder, Address, Sixteen8, 77, 108); |
4471 | |
4472 | |
4473 | |
4474 | AssignToArrayRange(Builder, Address, Is64Bit ? Eight8 : Four8, 109, 110); |
4475 | |
4476 | |
4477 | if (IsAIX) |
4478 | return false; |
4479 | |
4480 | |
4481 | |
4482 | |
4483 | AssignToArrayRange(Builder, Address, Is64Bit ? Eight8 : Four8, 111, 113); |
4484 | |
4485 | if (!Is64Bit) |
4486 | return false; |
4487 | |
4488 | |
4489 | |
4490 | |
4491 | |
4492 | |
4493 | |
4494 | AssignToArrayRange(Builder, Address, Eight8, 114, 116); |
4495 | |
4496 | return false; |
4497 | } |
4498 | |
4499 | |
4500 | namespace { |
4501 | |
4502 | class AIXABIInfo : public ABIInfo { |
4503 | const bool Is64Bit; |
4504 | const unsigned PtrByteSize; |
4505 | CharUnits getParamTypeAlignment(QualType Ty) const; |
4506 | |
4507 | public: |
4508 | AIXABIInfo(CodeGen::CodeGenTypes &CGT, bool Is64Bit) |
4509 | : ABIInfo(CGT), Is64Bit(Is64Bit), PtrByteSize(Is64Bit ? 8 : 4) {} |
4510 | |
4511 | bool isPromotableTypeForABI(QualType Ty) const; |
4512 | |
4513 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
4514 | ABIArgInfo classifyArgumentType(QualType Ty) const; |
4515 | |
4516 | void computeInfo(CGFunctionInfo &FI) const override { |
4517 | if (!getCXXABI().classifyReturnType(FI)) |
4518 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
4519 | |
4520 | for (auto &I : FI.arguments()) |
4521 | I.info = classifyArgumentType(I.type); |
4522 | } |
4523 | |
4524 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
4525 | QualType Ty) const override; |
4526 | }; |
4527 | |
4528 | class AIXTargetCodeGenInfo : public TargetCodeGenInfo { |
4529 | const bool Is64Bit; |
4530 | |
4531 | public: |
4532 | AIXTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, bool Is64Bit) |
4533 | : TargetCodeGenInfo(std::make_unique<AIXABIInfo>(CGT, Is64Bit)), |
4534 | Is64Bit(Is64Bit) {} |
4535 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
4536 | return 1; |
4537 | } |
4538 | |
4539 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
4540 | llvm::Value *Address) const override; |
4541 | }; |
4542 | } |
4543 | |
4544 | |
4545 | |
4546 | bool AIXABIInfo::isPromotableTypeForABI(QualType Ty) const { |
4547 | |
4548 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
4549 | Ty = EnumTy->getDecl()->getIntegerType(); |
4550 | |
4551 | |
4552 | if (Ty->isPromotableIntegerType()) |
4553 | return true; |
4554 | |
4555 | if (!Is64Bit) |
4556 | return false; |
4557 | |
4558 | |
4559 | |
4560 | |
4561 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) |
4562 | switch (BT->getKind()) { |
4563 | case BuiltinType::Int: |
4564 | case BuiltinType::UInt: |
4565 | return true; |
4566 | default: |
4567 | break; |
4568 | } |
4569 | |
4570 | return false; |
4571 | } |
4572 | |
4573 | ABIArgInfo AIXABIInfo::classifyReturnType(QualType RetTy) const { |
4574 | if (RetTy->isAnyComplexType()) |
4575 | return ABIArgInfo::getDirect(); |
4576 | |
4577 | if (RetTy->isVectorType()) |
4578 | return ABIArgInfo::getDirect(); |
4579 | |
4580 | if (RetTy->isVoidType()) |
4581 | return ABIArgInfo::getIgnore(); |
4582 | |
4583 | if (isAggregateTypeForABI(RetTy)) |
4584 | return getNaturalAlignIndirect(RetTy); |
4585 | |
4586 | return (isPromotableTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
4587 | : ABIArgInfo::getDirect()); |
4588 | } |
4589 | |
4590 | ABIArgInfo AIXABIInfo::classifyArgumentType(QualType Ty) const { |
4591 | Ty = useFirstFieldIfTransparentUnion(Ty); |
4592 | |
4593 | if (Ty->isAnyComplexType()) |
4594 | return ABIArgInfo::getDirect(); |
4595 | |
4596 | if (Ty->isVectorType()) |
4597 | return ABIArgInfo::getDirect(); |
4598 | |
4599 | if (isAggregateTypeForABI(Ty)) { |
4600 | |
4601 | |
4602 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
4603 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
4604 | |
4605 | CharUnits CCAlign = getParamTypeAlignment(Ty); |
4606 | CharUnits TyAlign = getContext().getTypeAlignInChars(Ty); |
4607 | |
4608 | return ABIArgInfo::getIndirect(CCAlign, true, |
4609 | TyAlign > CCAlign); |
4610 | } |
4611 | |
4612 | return (isPromotableTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
4613 | : ABIArgInfo::getDirect()); |
4614 | } |
4615 | |
4616 | CharUnits AIXABIInfo::getParamTypeAlignment(QualType Ty) const { |
4617 | |
4618 | if (const ComplexType *CTy = Ty->getAs<ComplexType>()) |
4619 | Ty = CTy->getElementType(); |
4620 | |
4621 | if (Ty->isVectorType()) |
4622 | return CharUnits::fromQuantity(16); |
4623 | |
4624 | |
4625 | if (isRecordWithSIMDVectorType(getContext(), Ty)) |
4626 | return CharUnits::fromQuantity(16); |
4627 | |
4628 | return CharUnits::fromQuantity(PtrByteSize); |
4629 | } |
4630 | |
4631 | Address AIXABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
4632 | QualType Ty) const { |
4633 | if (Ty->isAnyComplexType()) |
4634 | llvm::report_fatal_error("complex type is not supported on AIX yet"); |
4635 | |
4636 | auto TypeInfo = getContext().getTypeInfoInChars(Ty); |
4637 | TypeInfo.Align = getParamTypeAlignment(Ty); |
4638 | |
4639 | CharUnits SlotSize = CharUnits::fromQuantity(PtrByteSize); |
4640 | |
4641 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, false, TypeInfo, |
4642 | SlotSize, true); |
4643 | } |
4644 | |
4645 | bool AIXTargetCodeGenInfo::initDwarfEHRegSizeTable( |
4646 | CodeGen::CodeGenFunction &CGF, llvm::Value *Address) const { |
4647 | return PPC_initDwarfEHRegSizeTable(CGF, Address, Is64Bit, true); |
4648 | } |
4649 | |
4650 | |
4651 | namespace { |
4652 | |
4653 | class PPC32_SVR4_ABIInfo : public DefaultABIInfo { |
4654 | bool IsSoftFloatABI; |
4655 | bool IsRetSmallStructInRegABI; |
4656 | |
4657 | CharUnits getParamTypeAlignment(QualType Ty) const; |
4658 | |
4659 | public: |
4660 | PPC32_SVR4_ABIInfo(CodeGen::CodeGenTypes &CGT, bool SoftFloatABI, |
4661 | bool RetSmallStructInRegABI) |
4662 | : DefaultABIInfo(CGT), IsSoftFloatABI(SoftFloatABI), |
4663 | IsRetSmallStructInRegABI(RetSmallStructInRegABI) {} |
4664 | |
4665 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
4666 | |
4667 | void computeInfo(CGFunctionInfo &FI) const override { |
4668 | if (!getCXXABI().classifyReturnType(FI)) |
4669 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
4670 | for (auto &I : FI.arguments()) |
4671 | I.info = classifyArgumentType(I.type); |
4672 | } |
4673 | |
4674 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
4675 | QualType Ty) const override; |
4676 | }; |
4677 | |
4678 | class PPC32TargetCodeGenInfo : public TargetCodeGenInfo { |
4679 | public: |
4680 | PPC32TargetCodeGenInfo(CodeGenTypes &CGT, bool SoftFloatABI, |
4681 | bool RetSmallStructInRegABI) |
4682 | : TargetCodeGenInfo(std::make_unique<PPC32_SVR4_ABIInfo>( |
4683 | CGT, SoftFloatABI, RetSmallStructInRegABI)) {} |
4684 | |
4685 | static bool isStructReturnInRegABI(const llvm::Triple &Triple, |
4686 | const CodeGenOptions &Opts); |
4687 | |
4688 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
4689 | |
4690 | return 1; |
4691 | } |
4692 | |
4693 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
4694 | llvm::Value *Address) const override; |
4695 | }; |
4696 | } |
4697 | |
4698 | CharUnits PPC32_SVR4_ABIInfo::getParamTypeAlignment(QualType Ty) const { |
4699 | |
4700 | if (const ComplexType *CTy = Ty->getAs<ComplexType>()) |
4701 | Ty = CTy->getElementType(); |
4702 | |
4703 | if (Ty->isVectorType()) |
4704 | return CharUnits::fromQuantity(getContext().getTypeSize(Ty) == 128 ? 16 |
4705 | : 4); |
4706 | |
4707 | |
4708 | |
4709 | const Type *AlignTy = nullptr; |
4710 | if (const Type *EltType = isSingleElementStruct(Ty, getContext())) { |
4711 | const BuiltinType *BT = EltType->getAs<BuiltinType>(); |
4712 | if ((EltType->isVectorType() && getContext().getTypeSize(EltType) == 128) || |
4713 | (BT && BT->isFloatingPoint())) |
4714 | AlignTy = EltType; |
4715 | } |
4716 | |
4717 | if (AlignTy) |
4718 | return CharUnits::fromQuantity(AlignTy->isVectorType() ? 16 : 4); |
4719 | return CharUnits::fromQuantity(4); |
4720 | } |
4721 | |
4722 | ABIArgInfo PPC32_SVR4_ABIInfo::classifyReturnType(QualType RetTy) const { |
4723 | uint64_t Size; |
4724 | |
4725 | |
4726 | if (isAggregateTypeForABI(RetTy) && IsRetSmallStructInRegABI && |
4727 | (Size = getContext().getTypeSize(RetTy)) <= 64) { |
4728 | |
4729 | |
4730 | |
4731 | |
4732 | |
4733 | |
4734 | |
4735 | |
4736 | |
4737 | |
4738 | |
4739 | if (Size == 0) |
4740 | return ABIArgInfo::getIgnore(); |
4741 | else { |
4742 | llvm::Type *CoerceTy = llvm::Type::getIntNTy(getVMContext(), Size); |
4743 | return ABIArgInfo::getDirect(CoerceTy); |
4744 | } |
4745 | } |
4746 | |
4747 | return DefaultABIInfo::classifyReturnType(RetTy); |
4748 | } |
4749 | |
4750 | |
4751 | |
4752 | Address PPC32_SVR4_ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAList, |
4753 | QualType Ty) const { |
4754 | if (getTarget().getTriple().isOSDarwin()) { |
4755 | auto TI = getContext().getTypeInfoInChars(Ty); |
4756 | TI.Align = getParamTypeAlignment(Ty); |
4757 | |
4758 | CharUnits SlotSize = CharUnits::fromQuantity(4); |
4759 | return emitVoidPtrVAArg(CGF, VAList, Ty, |
4760 | classifyArgumentType(Ty).isIndirect(), TI, SlotSize, |
4761 | true); |
4762 | } |
4763 | |
4764 | const unsigned OverflowLimit = 8; |
4765 | if (const ComplexType *CTy = Ty->getAs<ComplexType>()) { |
4766 | |
4767 | (void)CTy; |
4768 | return Address::invalid(); |
4769 | } |
4770 | |
4771 | |
4772 | |
4773 | |
4774 | |
4775 | |
4776 | |
4777 | |
4778 | |
4779 | bool isI64 = Ty->isIntegerType() && getContext().getTypeSize(Ty) == 64; |
4780 | bool isInt = !Ty->isFloatingType(); |
4781 | bool isF64 = Ty->isFloatingType() && getContext().getTypeSize(Ty) == 64; |
4782 | |
4783 | |
4784 | |
4785 | bool isIndirect = isAggregateTypeForABI(Ty); |
4786 | |
4787 | CGBuilderTy &Builder = CGF.Builder; |
4788 | |
4789 | |
4790 | Address NumRegsAddr = Address::invalid(); |
4791 | if (isInt || IsSoftFloatABI) { |
4792 | NumRegsAddr = Builder.CreateStructGEP(VAList, 0, "gpr"); |
4793 | } else { |
4794 | NumRegsAddr = Builder.CreateStructGEP(VAList, 1, "fpr"); |
4795 | } |
4796 | |
4797 | llvm::Value *NumRegs = Builder.CreateLoad(NumRegsAddr, "numUsedRegs"); |
4798 | |
4799 | |
4800 | if (isI64 || (isF64 && IsSoftFloatABI)) { |
4801 | NumRegs = Builder.CreateAdd(NumRegs, Builder.getInt8(1)); |
4802 | NumRegs = Builder.CreateAnd(NumRegs, Builder.getInt8((uint8_t) ~1U)); |
4803 | } |
4804 | |
4805 | llvm::Value *CC = |
4806 | Builder.CreateICmpULT(NumRegs, Builder.getInt8(OverflowLimit), "cond"); |
4807 | |
4808 | llvm::BasicBlock *UsingRegs = CGF.createBasicBlock("using_regs"); |
4809 | llvm::BasicBlock *UsingOverflow = CGF.createBasicBlock("using_overflow"); |
4810 | llvm::BasicBlock *Cont = CGF.createBasicBlock("cont"); |
4811 | |
4812 | Builder.CreateCondBr(CC, UsingRegs, UsingOverflow); |
4813 | |
4814 | llvm::Type *DirectTy = CGF.ConvertType(Ty); |
4815 | if (isIndirect) DirectTy = DirectTy->getPointerTo(0); |
4816 | |
4817 | |
4818 | Address RegAddr = Address::invalid(); |
4819 | { |
4820 | CGF.EmitBlock(UsingRegs); |
4821 | |
4822 | Address RegSaveAreaPtr = Builder.CreateStructGEP(VAList, 4); |
4823 | RegAddr = Address(Builder.CreateLoad(RegSaveAreaPtr), |
4824 | CharUnits::fromQuantity(8)); |
4825 | assert(RegAddr.getElementType() == CGF.Int8Ty); |
4826 | |
4827 | |
4828 | if (!(isInt || IsSoftFloatABI)) { |
4829 | RegAddr = Builder.CreateConstInBoundsByteGEP(RegAddr, |
4830 | CharUnits::fromQuantity(32)); |
4831 | } |
4832 | |
4833 | |
4834 | |
4835 | CharUnits RegSize = CharUnits::fromQuantity((isInt || IsSoftFloatABI) ? 4 : 8); |
4836 | llvm::Value *RegOffset = |
4837 | Builder.CreateMul(NumRegs, Builder.getInt8(RegSize.getQuantity())); |
4838 | RegAddr = Address(Builder.CreateInBoundsGEP(CGF.Int8Ty, |
4839 | RegAddr.getPointer(), RegOffset), |
4840 | RegAddr.getAlignment().alignmentOfArrayElement(RegSize)); |
4841 | RegAddr = Builder.CreateElementBitCast(RegAddr, DirectTy); |
4842 | |
4843 | |
4844 | NumRegs = |
4845 | Builder.CreateAdd(NumRegs, |
4846 | Builder.getInt8((isI64 || (isF64 && IsSoftFloatABI)) ? 2 : 1)); |
4847 | Builder.CreateStore(NumRegs, NumRegsAddr); |
4848 | |
4849 | CGF.EmitBranch(Cont); |
4850 | } |
4851 | |
4852 | |
4853 | Address MemAddr = Address::invalid(); |
4854 | { |
4855 | CGF.EmitBlock(UsingOverflow); |
4856 | |
4857 | Builder.CreateStore(Builder.getInt8(OverflowLimit), NumRegsAddr); |
4858 | |
4859 | |
4860 | CharUnits OverflowAreaAlign = CharUnits::fromQuantity(4); |
4861 | |
4862 | CharUnits Size; |
4863 | if (!isIndirect) { |
4864 | auto TypeInfo = CGF.getContext().getTypeInfoInChars(Ty); |
4865 | Size = TypeInfo.Width.alignTo(OverflowAreaAlign); |
4866 | } else { |
4867 | Size = CGF.getPointerSize(); |
4868 | } |
4869 | |
4870 | Address OverflowAreaAddr = Builder.CreateStructGEP(VAList, 3); |
4871 | Address OverflowArea(Builder.CreateLoad(OverflowAreaAddr, "argp.cur"), |
4872 | OverflowAreaAlign); |
4873 | |
4874 | CharUnits Align = CGF.getContext().getTypeAlignInChars(Ty); |
4875 | if (Align > OverflowAreaAlign) { |
4876 | llvm::Value *Ptr = OverflowArea.getPointer(); |
4877 | OverflowArea = Address(emitRoundPointerUpToAlignment(CGF, Ptr, Align), |
4878 | Align); |
4879 | } |
4880 | |
4881 | MemAddr = Builder.CreateElementBitCast(OverflowArea, DirectTy); |
4882 | |
4883 | |
4884 | OverflowArea = Builder.CreateConstInBoundsByteGEP(OverflowArea, Size); |
4885 | Builder.CreateStore(OverflowArea.getPointer(), OverflowAreaAddr); |
4886 | CGF.EmitBranch(Cont); |
4887 | } |
4888 | |
4889 | CGF.EmitBlock(Cont); |
4890 | |
4891 | |
4892 | Address Result = emitMergePHI(CGF, RegAddr, UsingRegs, MemAddr, UsingOverflow, |
4893 | "vaarg.addr"); |
4894 | |
4895 | |
4896 | if (isIndirect) { |
4897 | Result = Address(Builder.CreateLoad(Result, "aggr"), |
4898 | getContext().getTypeAlignInChars(Ty)); |
4899 | } |
4900 | |
4901 | return Result; |
4902 | } |
4903 | |
4904 | bool PPC32TargetCodeGenInfo::isStructReturnInRegABI( |
4905 | const llvm::Triple &Triple, const CodeGenOptions &Opts) { |
4906 | assert(Triple.isPPC32()); |
4907 | |
4908 | switch (Opts.getStructReturnConvention()) { |
4909 | case CodeGenOptions::SRCK_Default: |
4910 | break; |
4911 | case CodeGenOptions::SRCK_OnStack: |
4912 | return false; |
4913 | case CodeGenOptions::SRCK_InRegs: |
4914 | return true; |
4915 | } |
4916 | |
4917 | if (Triple.isOSBinFormatELF() && !Triple.isOSLinux()) |
4918 | return true; |
4919 | |
4920 | return false; |
4921 | } |
4922 | |
4923 | bool |
4924 | PPC32TargetCodeGenInfo::initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
4925 | llvm::Value *Address) const { |
4926 | return PPC_initDwarfEHRegSizeTable(CGF, Address, false, |
4927 | false); |
4928 | } |
4929 | |
4930 | |
4931 | |
4932 | namespace { |
4933 | |
4934 | class PPC64_SVR4_ABIInfo : public SwiftABIInfo { |
4935 | public: |
4936 | enum ABIKind { |
4937 | ELFv1 = 0, |
4938 | ELFv2 |
4939 | }; |
4940 | |
4941 | private: |
4942 | static const unsigned GPRBits = 64; |
4943 | ABIKind Kind; |
4944 | bool IsSoftFloatABI; |
4945 | |
4946 | public: |
4947 | PPC64_SVR4_ABIInfo(CodeGen::CodeGenTypes &CGT, ABIKind Kind, |
4948 | bool SoftFloatABI) |
4949 | : SwiftABIInfo(CGT), Kind(Kind), IsSoftFloatABI(SoftFloatABI) {} |
4950 | |
4951 | bool isPromotableTypeForABI(QualType Ty) const; |
4952 | CharUnits getParamTypeAlignment(QualType Ty) const; |
4953 | |
4954 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
4955 | ABIArgInfo classifyArgumentType(QualType Ty) const; |
4956 | |
4957 | bool isHomogeneousAggregateBaseType(QualType Ty) const override; |
4958 | bool isHomogeneousAggregateSmallEnough(const Type *Ty, |
4959 | uint64_t Members) const override; |
4960 | |
4961 | |
4962 | |
4963 | |
4964 | |
4965 | |
4966 | |
4967 | void computeInfo(CGFunctionInfo &FI) const override { |
4968 | if (!getCXXABI().classifyReturnType(FI)) |
4969 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
4970 | for (auto &I : FI.arguments()) { |
4971 | |
4972 | |
4973 | |
4974 | const Type *T = isSingleElementStruct(I.type, getContext()); |
4975 | if (T) { |
4976 | const BuiltinType *BT = T->getAs<BuiltinType>(); |
4977 | if ((T->isVectorType() && getContext().getTypeSize(T) == 128) || |
4978 | (BT && BT->isFloatingPoint())) { |
4979 | QualType QT(T, 0); |
4980 | I.info = ABIArgInfo::getDirectInReg(CGT.ConvertType(QT)); |
4981 | continue; |
4982 | } |
4983 | } |
4984 | I.info = classifyArgumentType(I.type); |
4985 | } |
4986 | } |
4987 | |
4988 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
4989 | QualType Ty) const override; |
4990 | |
4991 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars, |
4992 | bool asReturnValue) const override { |
4993 | return occupiesMoreThan(CGT, scalars, 4); |
4994 | } |
4995 | |
4996 | bool isSwiftErrorInRegister() const override { |
4997 | return false; |
4998 | } |
4999 | }; |
5000 | |
5001 | class PPC64_SVR4_TargetCodeGenInfo : public TargetCodeGenInfo { |
5002 | |
5003 | public: |
5004 | PPC64_SVR4_TargetCodeGenInfo(CodeGenTypes &CGT, |
5005 | PPC64_SVR4_ABIInfo::ABIKind Kind, |
5006 | bool SoftFloatABI) |
5007 | : TargetCodeGenInfo( |
5008 | std::make_unique<PPC64_SVR4_ABIInfo>(CGT, Kind, SoftFloatABI)) {} |
5009 | |
5010 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
5011 | |
5012 | return 1; |
5013 | } |
5014 | |
5015 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
5016 | llvm::Value *Address) const override; |
5017 | }; |
5018 | |
5019 | class PPC64TargetCodeGenInfo : public DefaultTargetCodeGenInfo { |
5020 | public: |
5021 | PPC64TargetCodeGenInfo(CodeGenTypes &CGT) : DefaultTargetCodeGenInfo(CGT) {} |
5022 | |
5023 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
5024 | |
5025 | return 1; |
5026 | } |
5027 | |
5028 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
5029 | llvm::Value *Address) const override; |
5030 | }; |
5031 | |
5032 | } |
5033 | |
5034 | |
5035 | |
5036 | bool |
5037 | PPC64_SVR4_ABIInfo::isPromotableTypeForABI(QualType Ty) const { |
5038 | |
5039 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
5040 | Ty = EnumTy->getDecl()->getIntegerType(); |
5041 | |
5042 | |
5043 | if (isPromotableIntegerTypeForABI(Ty)) |
5044 | return true; |
5045 | |
5046 | |
5047 | |
5048 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) |
5049 | switch (BT->getKind()) { |
5050 | case BuiltinType::Int: |
5051 | case BuiltinType::UInt: |
5052 | return true; |
5053 | default: |
5054 | break; |
5055 | } |
5056 | |
5057 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
5058 | if (EIT->getNumBits() < 64) |
5059 | return true; |
5060 | |
5061 | return false; |
5062 | } |
5063 | |
5064 | |
5065 | |
5066 | CharUnits PPC64_SVR4_ABIInfo::getParamTypeAlignment(QualType Ty) const { |
5067 | |
5068 | if (const ComplexType *CTy = Ty->getAs<ComplexType>()) |
5069 | Ty = CTy->getElementType(); |
5070 | |
5071 | |
5072 | |
5073 | if (Ty->isVectorType()) { |
5074 | return CharUnits::fromQuantity(getContext().getTypeSize(Ty) == 128 ? 16 : 8); |
5075 | } else if (Ty->isRealFloatingType() && |
5076 | &getContext().getFloatTypeSemantics(Ty) == |
5077 | &llvm::APFloat::IEEEquad()) { |
5078 | |
5079 | |
5080 | |
5081 | return CharUnits::fromQuantity(16); |
5082 | } |
5083 | |
5084 | |
5085 | |
5086 | const Type *AlignAsType = nullptr; |
5087 | const Type *EltType = isSingleElementStruct(Ty, getContext()); |
5088 | if (EltType) { |
5089 | const BuiltinType *BT = EltType->getAs<BuiltinType>(); |
5090 | if ((EltType->isVectorType() && getContext().getTypeSize(EltType) == 128) || |
5091 | (BT && BT->isFloatingPoint())) |
5092 | AlignAsType = EltType; |
5093 | } |
5094 | |
5095 | |
5096 | const Type *Base = nullptr; |
5097 | uint64_t Members = 0; |
5098 | if (!AlignAsType && Kind == ELFv2 && |
5099 | isAggregateTypeForABI(Ty) && isHomogeneousAggregate(Ty, Base, Members)) |
5100 | AlignAsType = Base; |
5101 | |
5102 | |
5103 | if (AlignAsType) { |
5104 | return CharUnits::fromQuantity(AlignAsType->isVectorType() ? 16 : 8); |
5105 | } |
5106 | |
5107 | |
5108 | |
5109 | if (isAggregateTypeForABI(Ty) && getContext().getTypeAlign(Ty) >= 128) { |
5110 | return CharUnits::fromQuantity(16); |
5111 | } |
5112 | |
5113 | return CharUnits::fromQuantity(8); |
5114 | } |
5115 | |
5116 | |
5117 | |
5118 | |
5119 | bool ABIInfo::isHomogeneousAggregate(QualType Ty, const Type *&Base, |
5120 | uint64_t &Members) const { |
5121 | if (const ConstantArrayType *AT = getContext().getAsConstantArrayType(Ty)) { |
5122 | uint64_t NElements = AT->getSize().getZExtValue(); |
5123 | if (NElements == 0) |
5124 | return false; |
5125 | if (!isHomogeneousAggregate(AT->getElementType(), Base, Members)) |
5126 | return false; |
5127 | Members *= NElements; |
5128 | } else if (const RecordType *RT = Ty->getAs<RecordType>()) { |
5129 | const RecordDecl *RD = RT->getDecl(); |
5130 | if (RD->hasFlexibleArrayMember()) |
5131 | return false; |
5132 | |
5133 | Members = 0; |
5134 | |
5135 | |
5136 | |
5137 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) { |
5138 | if (!getCXXABI().isPermittedToBeHomogeneousAggregate(CXXRD)) |
5139 | return false; |
5140 | |
5141 | for (const auto &I : CXXRD->bases()) { |
5142 | |
5143 | if (isEmptyRecord(getContext(), I.getType(), true)) |
5144 | continue; |
5145 | |
5146 | uint64_t FldMembers; |
5147 | if (!isHomogeneousAggregate(I.getType(), Base, FldMembers)) |
5148 | return false; |
5149 | |
5150 | Members += FldMembers; |
5151 | } |
5152 | } |
5153 | |
5154 | for (const auto *FD : RD->fields()) { |
5155 | |
5156 | QualType FT = FD->getType(); |
5157 | while (const ConstantArrayType *AT = |
5158 | getContext().getAsConstantArrayType(FT)) { |
5159 | if (AT->getSize().getZExtValue() == 0) |
5160 | return false; |
5161 | FT = AT->getElementType(); |
5162 | } |
5163 | if (isEmptyRecord(getContext(), FT, true)) |
5164 | continue; |
5165 | |
5166 | |
5167 | if (getContext().getLangOpts().CPlusPlus && |
5168 | FD->isZeroLengthBitField(getContext())) |
5169 | continue; |
5170 | |
5171 | uint64_t FldMembers; |
5172 | if (!isHomogeneousAggregate(FD->getType(), Base, FldMembers)) |
5173 | return false; |
5174 | |
5175 | Members = (RD->isUnion() ? |
5176 | std::max(Members, FldMembers) : Members + FldMembers); |
5177 | } |
5178 | |
5179 | if (!Base) |
5180 | return false; |
5181 | |
5182 | |
5183 | if (getContext().getTypeSize(Base) * Members != |
5184 | getContext().getTypeSize(Ty)) |
5185 | return false; |
5186 | } else { |
5187 | Members = 1; |
5188 | if (const ComplexType *CT = Ty->getAs<ComplexType>()) { |
5189 | Members = 2; |
5190 | Ty = CT->getElementType(); |
5191 | } |
5192 | |
5193 | |
5194 | if (!isHomogeneousAggregateBaseType(Ty)) |
5195 | return false; |
5196 | |
5197 | |
5198 | |
5199 | |
5200 | const Type *TyPtr = Ty.getTypePtr(); |
5201 | if (!Base) { |
5202 | Base = TyPtr; |
5203 | |
5204 | |
5205 | if (const VectorType *VT = Base->getAs<VectorType>()) { |
5206 | QualType EltTy = VT->getElementType(); |
5207 | unsigned NumElements = |
5208 | getContext().getTypeSize(VT) / getContext().getTypeSize(EltTy); |
5209 | Base = getContext() |
5210 | .getVectorType(EltTy, NumElements, VT->getVectorKind()) |
5211 | .getTypePtr(); |
5212 | } |
5213 | } |
5214 | |
5215 | if (Base->isVectorType() != TyPtr->isVectorType() || |
5216 | getContext().getTypeSize(Base) != getContext().getTypeSize(TyPtr)) |
5217 | return false; |
5218 | } |
5219 | return Members > 0 && isHomogeneousAggregateSmallEnough(Base, Members); |
5220 | } |
5221 | |
5222 | bool PPC64_SVR4_ABIInfo::isHomogeneousAggregateBaseType(QualType Ty) const { |
5223 | |
5224 | |
5225 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) { |
5226 | if (BT->getKind() == BuiltinType::Float || |
5227 | BT->getKind() == BuiltinType::Double || |
5228 | BT->getKind() == BuiltinType::LongDouble || |
5229 | (getContext().getTargetInfo().hasFloat128Type() && |
5230 | (BT->getKind() == BuiltinType::Float128))) { |
5231 | if (IsSoftFloatABI) |
5232 | return false; |
5233 | return true; |
5234 | } |
5235 | } |
5236 | if (const VectorType *VT = Ty->getAs<VectorType>()) { |
5237 | if (getContext().getTypeSize(VT) == 128) |
5238 | return true; |
5239 | } |
5240 | return false; |
5241 | } |
5242 | |
5243 | bool PPC64_SVR4_ABIInfo::isHomogeneousAggregateSmallEnough( |
5244 | const Type *Base, uint64_t Members) const { |
5245 | |
5246 | |
5247 | uint32_t NumRegs = |
5248 | ((getContext().getTargetInfo().hasFloat128Type() && |
5249 | Base->isFloat128Type()) || |
5250 | Base->isVectorType()) ? 1 |
5251 | : (getContext().getTypeSize(Base) + 63) / 64; |
5252 | |
5253 | |
5254 | return Members * NumRegs <= 8; |
5255 | } |
5256 | |
5257 | ABIArgInfo |
5258 | PPC64_SVR4_ABIInfo::classifyArgumentType(QualType Ty) const { |
5259 | Ty = useFirstFieldIfTransparentUnion(Ty); |
5260 | |
5261 | if (Ty->isAnyComplexType()) |
5262 | return ABIArgInfo::getDirect(); |
5263 | |
5264 | |
5265 | |
5266 | if (Ty->isVectorType()) { |
5267 | uint64_t Size = getContext().getTypeSize(Ty); |
5268 | if (Size > 128) |
5269 | return getNaturalAlignIndirect(Ty, false); |
5270 | else if (Size < 128) { |
5271 | llvm::Type *CoerceTy = llvm::IntegerType::get(getVMContext(), Size); |
5272 | return ABIArgInfo::getDirect(CoerceTy); |
5273 | } |
5274 | } |
5275 | |
5276 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
5277 | if (EIT->getNumBits() > 128) |
5278 | return getNaturalAlignIndirect(Ty, true); |
5279 | |
5280 | if (isAggregateTypeForABI(Ty)) { |
5281 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
5282 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
5283 | |
5284 | uint64_t ABIAlign = getParamTypeAlignment(Ty).getQuantity(); |
5285 | uint64_t TyAlign = getContext().getTypeAlignInChars(Ty).getQuantity(); |
5286 | |
5287 | |
5288 | const Type *Base = nullptr; |
5289 | uint64_t Members = 0; |
5290 | if (Kind == ELFv2 && |
5291 | isHomogeneousAggregate(Ty, Base, Members)) { |
5292 | llvm::Type *BaseTy = CGT.ConvertType(QualType(Base, 0)); |
5293 | llvm::Type *CoerceTy = llvm::ArrayType::get(BaseTy, Members); |
5294 | return ABIArgInfo::getDirect(CoerceTy); |
5295 | } |
5296 | |
5297 | |
5298 | |
5299 | |
5300 | |
5301 | uint64_t Bits = getContext().getTypeSize(Ty); |
5302 | if (Bits > 0 && Bits <= 8 * GPRBits) { |
5303 | llvm::Type *CoerceTy; |
5304 | |
5305 | |
5306 | |
5307 | if (Bits <= GPRBits) |
5308 | CoerceTy = |
5309 | llvm::IntegerType::get(getVMContext(), llvm::alignTo(Bits, 8)); |
5310 | |
5311 | |
5312 | else { |
5313 | uint64_t RegBits = ABIAlign * 8; |
5314 | uint64_t NumRegs = llvm::alignTo(Bits, RegBits) / RegBits; |
5315 | llvm::Type *RegTy = llvm::IntegerType::get(getVMContext(), RegBits); |
5316 | CoerceTy = llvm::ArrayType::get(RegTy, NumRegs); |
5317 | } |
5318 | |
5319 | return ABIArgInfo::getDirect(CoerceTy); |
5320 | } |
5321 | |
5322 | |
5323 | return ABIArgInfo::getIndirect(CharUnits::fromQuantity(ABIAlign), |
5324 | true, |
5325 | TyAlign > ABIAlign); |
5326 | } |
5327 | |
5328 | return (isPromotableTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
5329 | : ABIArgInfo::getDirect()); |
5330 | } |
5331 | |
5332 | ABIArgInfo |
5333 | PPC64_SVR4_ABIInfo::classifyReturnType(QualType RetTy) const { |
5334 | if (RetTy->isVoidType()) |
5335 | return ABIArgInfo::getIgnore(); |
5336 | |
5337 | if (RetTy->isAnyComplexType()) |
5338 | return ABIArgInfo::getDirect(); |
5339 | |
5340 | |
5341 | |
5342 | if (RetTy->isVectorType()) { |
5343 | uint64_t Size = getContext().getTypeSize(RetTy); |
5344 | if (Size > 128) |
5345 | return getNaturalAlignIndirect(RetTy); |
5346 | else if (Size < 128) { |
5347 | llvm::Type *CoerceTy = llvm::IntegerType::get(getVMContext(), Size); |
5348 | return ABIArgInfo::getDirect(CoerceTy); |
5349 | } |
5350 | } |
5351 | |
5352 | if (const auto *EIT = RetTy->getAs<ExtIntType>()) |
5353 | if (EIT->getNumBits() > 128) |
5354 | return getNaturalAlignIndirect(RetTy, false); |
5355 | |
5356 | if (isAggregateTypeForABI(RetTy)) { |
5357 | |
5358 | const Type *Base = nullptr; |
5359 | uint64_t Members = 0; |
5360 | if (Kind == ELFv2 && |
5361 | isHomogeneousAggregate(RetTy, Base, Members)) { |
5362 | llvm::Type *BaseTy = CGT.ConvertType(QualType(Base, 0)); |
5363 | llvm::Type *CoerceTy = llvm::ArrayType::get(BaseTy, Members); |
5364 | return ABIArgInfo::getDirect(CoerceTy); |
5365 | } |
5366 | |
5367 | |
5368 | uint64_t Bits = getContext().getTypeSize(RetTy); |
5369 | if (Kind == ELFv2 && Bits <= 2 * GPRBits) { |
5370 | if (Bits == 0) |
5371 | return ABIArgInfo::getIgnore(); |
5372 | |
5373 | llvm::Type *CoerceTy; |
5374 | if (Bits > GPRBits) { |
5375 | CoerceTy = llvm::IntegerType::get(getVMContext(), GPRBits); |
5376 | CoerceTy = llvm::StructType::get(CoerceTy, CoerceTy); |
5377 | } else |
5378 | CoerceTy = |
5379 | llvm::IntegerType::get(getVMContext(), llvm::alignTo(Bits, 8)); |
5380 | return ABIArgInfo::getDirect(CoerceTy); |
5381 | } |
5382 | |
5383 | |
5384 | return getNaturalAlignIndirect(RetTy); |
5385 | } |
5386 | |
5387 | return (isPromotableTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
5388 | : ABIArgInfo::getDirect()); |
5389 | } |
5390 | |
5391 | |
5392 | Address PPC64_SVR4_ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
5393 | QualType Ty) const { |
5394 | auto TypeInfo = getContext().getTypeInfoInChars(Ty); |
5395 | TypeInfo.Align = getParamTypeAlignment(Ty); |
5396 | |
5397 | CharUnits SlotSize = CharUnits::fromQuantity(8); |
5398 | |
5399 | |
5400 | |
5401 | |
5402 | |
5403 | |
5404 | |
5405 | if (const ComplexType *CTy = Ty->getAs<ComplexType>()) { |
5406 | CharUnits EltSize = TypeInfo.Width / 2; |
5407 | if (EltSize < SlotSize) { |
5408 | Address Addr = emitVoidPtrDirectVAArg(CGF, VAListAddr, CGF.Int8Ty, |
5409 | SlotSize * 2, SlotSize, |
5410 | SlotSize, true); |
5411 | |
5412 | Address RealAddr = Addr; |
5413 | Address ImagAddr = RealAddr; |
5414 | if (CGF.CGM.getDataLayout().isBigEndian()) { |
5415 | RealAddr = CGF.Builder.CreateConstInBoundsByteGEP(RealAddr, |
5416 | SlotSize - EltSize); |
5417 | ImagAddr = CGF.Builder.CreateConstInBoundsByteGEP(ImagAddr, |
5418 | 2 * SlotSize - EltSize); |
5419 | } else { |
5420 | ImagAddr = CGF.Builder.CreateConstInBoundsByteGEP(RealAddr, SlotSize); |
5421 | } |
5422 | |
5423 | llvm::Type *EltTy = CGF.ConvertTypeForMem(CTy->getElementType()); |
5424 | RealAddr = CGF.Builder.CreateElementBitCast(RealAddr, EltTy); |
5425 | ImagAddr = CGF.Builder.CreateElementBitCast(ImagAddr, EltTy); |
5426 | llvm::Value *Real = CGF.Builder.CreateLoad(RealAddr, ".vareal"); |
5427 | llvm::Value *Imag = CGF.Builder.CreateLoad(ImagAddr, ".vaimag"); |
5428 | |
5429 | Address Temp = CGF.CreateMemTemp(Ty, "vacplx"); |
5430 | CGF.EmitStoreOfComplex({Real, Imag}, CGF.MakeAddrLValue(Temp, Ty), |
5431 | true); |
5432 | return Temp; |
5433 | } |
5434 | } |
5435 | |
5436 | |
5437 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, false, |
5438 | TypeInfo, SlotSize, true); |
5439 | } |
5440 | |
5441 | bool |
5442 | PPC64_SVR4_TargetCodeGenInfo::initDwarfEHRegSizeTable( |
5443 | CodeGen::CodeGenFunction &CGF, |
5444 | llvm::Value *Address) const { |
5445 | return PPC_initDwarfEHRegSizeTable(CGF, Address, true, |
5446 | false); |
5447 | } |
5448 | |
5449 | bool |
5450 | PPC64TargetCodeGenInfo::initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
5451 | llvm::Value *Address) const { |
5452 | return PPC_initDwarfEHRegSizeTable(CGF, Address, true, |
5453 | false); |
5454 | } |
5455 | |
5456 | |
5457 | |
5458 | |
5459 | |
5460 | namespace { |
5461 | |
5462 | class AArch64ABIInfo : public SwiftABIInfo { |
5463 | public: |
5464 | enum ABIKind { |
5465 | AAPCS = 0, |
5466 | DarwinPCS, |
5467 | Win64 |
5468 | }; |
5469 | |
5470 | private: |
5471 | ABIKind Kind; |
5472 | |
5473 | public: |
5474 | AArch64ABIInfo(CodeGenTypes &CGT, ABIKind Kind) |
5475 | : SwiftABIInfo(CGT), Kind(Kind) {} |
5476 | |
5477 | private: |
5478 | ABIKind getABIKind() const { return Kind; } |
5479 | bool isDarwinPCS() const { return Kind == DarwinPCS; } |
5480 | |
5481 | ABIArgInfo classifyReturnType(QualType RetTy, bool IsVariadic) const; |
5482 | ABIArgInfo classifyArgumentType(QualType RetTy, bool IsVariadic, |
5483 | unsigned CallingConvention) const; |
5484 | ABIArgInfo coerceIllegalVector(QualType Ty) const; |
5485 | bool isHomogeneousAggregateBaseType(QualType Ty) const override; |
5486 | bool isHomogeneousAggregateSmallEnough(const Type *Ty, |
5487 | uint64_t Members) const override; |
5488 | |
5489 | bool isIllegalVectorType(QualType Ty) const; |
5490 | |
5491 | void computeInfo(CGFunctionInfo &FI) const override { |
5492 | if (!::classifyReturnType(getCXXABI(), FI, *this)) |
5493 | FI.getReturnInfo() = |
5494 | classifyReturnType(FI.getReturnType(), FI.isVariadic()); |
5495 | |
5496 | for (auto &it : FI.arguments()) |
5497 | it.info = classifyArgumentType(it.type, FI.isVariadic(), |
5498 | FI.getCallingConvention()); |
5499 | } |
5500 | |
5501 | Address EmitDarwinVAArg(Address VAListAddr, QualType Ty, |
5502 | CodeGenFunction &CGF) const; |
5503 | |
5504 | Address EmitAAPCSVAArg(Address VAListAddr, QualType Ty, |
5505 | CodeGenFunction &CGF) const; |
5506 | |
5507 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
5508 | QualType Ty) const override { |
5509 | llvm::Type *BaseTy = CGF.ConvertType(Ty); |
5510 | if (isa<llvm::ScalableVectorType>(BaseTy)) |
5511 | llvm::report_fatal_error("Passing SVE types to variadic functions is " |
5512 | "currently not supported"); |
5513 | |
5514 | return Kind == Win64 ? EmitMSVAArg(CGF, VAListAddr, Ty) |
5515 | : isDarwinPCS() ? EmitDarwinVAArg(VAListAddr, Ty, CGF) |
5516 | : EmitAAPCSVAArg(VAListAddr, Ty, CGF); |
5517 | } |
5518 | |
5519 | Address EmitMSVAArg(CodeGenFunction &CGF, Address VAListAddr, |
5520 | QualType Ty) const override; |
5521 | |
5522 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars, |
5523 | bool asReturnValue) const override { |
5524 | return occupiesMoreThan(CGT, scalars, 4); |
5525 | } |
5526 | bool isSwiftErrorInRegister() const override { |
5527 | return true; |
5528 | } |
5529 | |
5530 | bool isLegalVectorTypeForSwift(CharUnits totalSize, llvm::Type *eltTy, |
5531 | unsigned elts) const override; |
5532 | |
5533 | bool allowBFloatArgsAndRet() const override { |
5534 | return getTarget().hasBFloat16Type(); |
5535 | } |
5536 | }; |
5537 | |
5538 | class AArch64TargetCodeGenInfo : public TargetCodeGenInfo { |
5539 | public: |
5540 | AArch64TargetCodeGenInfo(CodeGenTypes &CGT, AArch64ABIInfo::ABIKind Kind) |
5541 | : TargetCodeGenInfo(std::make_unique<AArch64ABIInfo>(CGT, Kind)) {} |
5542 | |
5543 | StringRef getARCRetainAutoreleasedReturnValueMarker() const override { |
5544 | return "mov\tfp, fp\t\t// marker for objc_retainAutoreleaseReturnValue"; |
5545 | } |
5546 | |
5547 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
5548 | return 31; |
5549 | } |
5550 | |
5551 | bool doesReturnSlotInterfereWithArgs() const override { return false; } |
5552 | |
5553 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
5554 | CodeGen::CodeGenModule &CGM) const override { |
5555 | const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); |
5556 | if (!FD) |
5557 | return; |
5558 | |
5559 | const auto *TA = FD->getAttr<TargetAttr>(); |
5560 | if (TA == nullptr) |
5561 | return; |
5562 | |
5563 | ParsedTargetAttr Attr = TA->parse(); |
5564 | if (Attr.BranchProtection.empty()) |
5565 | return; |
5566 | |
5567 | TargetInfo::BranchProtectionInfo BPI; |
5568 | StringRef Error; |
5569 | (void)CGM.getTarget().validateBranchProtection(Attr.BranchProtection, |
5570 | BPI, Error); |
5571 | assert(Error.empty()); |
5572 | |
5573 | auto *Fn = cast<llvm::Function>(GV); |
5574 | static const char *SignReturnAddrStr[] = {"none", "non-leaf", "all"}; |
5575 | Fn->addFnAttr("sign-return-address", SignReturnAddrStr[static_cast<int>(BPI.SignReturnAddr)]); |
5576 | |
5577 | if (BPI.SignReturnAddr != LangOptions::SignReturnAddressScopeKind::None) { |
5578 | Fn->addFnAttr("sign-return-address-key", |
5579 | BPI.SignKey == LangOptions::SignReturnAddressKeyKind::AKey |
5580 | ? "a_key" |
5581 | : "b_key"); |
5582 | } |
5583 | |
5584 | Fn->addFnAttr("branch-target-enforcement", |
5585 | BPI.BranchTargetEnforcement ? "true" : "false"); |
5586 | } |
5587 | |
5588 | bool isScalarizableAsmOperand(CodeGen::CodeGenFunction &CGF, |
5589 | llvm::Type *Ty) const override { |
5590 | if (CGF.getTarget().hasFeature("ls64")) { |
5591 | auto *ST = dyn_cast<llvm::StructType>(Ty); |
5592 | if (ST && ST->getNumElements() == 1) { |
5593 | auto *AT = dyn_cast<llvm::ArrayType>(ST->getElementType(0)); |
5594 | if (AT && AT->getNumElements() == 8 && |
5595 | AT->getElementType()->isIntegerTy(64)) |
5596 | return true; |
5597 | } |
5598 | } |
5599 | return TargetCodeGenInfo::isScalarizableAsmOperand(CGF, Ty); |
5600 | } |
5601 | }; |
5602 | |
5603 | class WindowsAArch64TargetCodeGenInfo : public AArch64TargetCodeGenInfo { |
5604 | public: |
5605 | WindowsAArch64TargetCodeGenInfo(CodeGenTypes &CGT, AArch64ABIInfo::ABIKind K) |
5606 | : AArch64TargetCodeGenInfo(CGT, K) {} |
5607 | |
5608 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
5609 | CodeGen::CodeGenModule &CGM) const override; |
5610 | |
5611 | void getDependentLibraryOption(llvm::StringRef Lib, |
5612 | llvm::SmallString<24> &Opt) const override { |
5613 | Opt = "/DEFAULTLIB:" + qualifyWindowsLibrary(Lib); |
5614 | } |
5615 | |
5616 | void getDetectMismatchOption(llvm::StringRef Name, llvm::StringRef Value, |
5617 | llvm::SmallString<32> &Opt) const override { |
5618 | Opt = "/FAILIFMISMATCH:\"" + Name.str() + "=" + Value.str() + "\""; |
5619 | } |
5620 | }; |
5621 | |
5622 | void WindowsAArch64TargetCodeGenInfo::setTargetAttributes( |
5623 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM) const { |
5624 | AArch64TargetCodeGenInfo::setTargetAttributes(D, GV, CGM); |
5625 | if (GV->isDeclaration()) |
5626 | return; |
5627 | addStackProbeTargetAttributes(D, GV, CGM); |
5628 | } |
5629 | } |
5630 | |
5631 | ABIArgInfo AArch64ABIInfo::coerceIllegalVector(QualType Ty) const { |
5632 | assert(Ty->isVectorType() && "expected vector type!"); |
5633 | |
5634 | const auto *VT = Ty->castAs<VectorType>(); |
5635 | if (VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector) { |
5636 | assert(VT->getElementType()->isBuiltinType() && "expected builtin type!"); |
5637 | assert(VT->getElementType()->castAs<BuiltinType>()->getKind() == |
5638 | BuiltinType::UChar && |
5639 | "unexpected builtin type for SVE predicate!"); |
5640 | return ABIArgInfo::getDirect(llvm::ScalableVectorType::get( |
5641 | llvm::Type::getInt1Ty(getVMContext()), 16)); |
5642 | } |
5643 | |
5644 | if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector) { |
5645 | assert(VT->getElementType()->isBuiltinType() && "expected builtin type!"); |
5646 | |
5647 | const auto *BT = VT->getElementType()->castAs<BuiltinType>(); |
5648 | llvm::ScalableVectorType *ResType = nullptr; |
5649 | switch (BT->getKind()) { |
5650 | default: |
5651 | llvm_unreachable("unexpected builtin type for SVE vector!"); |
5652 | case BuiltinType::SChar: |
5653 | case BuiltinType::UChar: |
5654 | ResType = llvm::ScalableVectorType::get( |
5655 | llvm::Type::getInt8Ty(getVMContext()), 16); |
5656 | break; |
5657 | case BuiltinType::Short: |
5658 | case BuiltinType::UShort: |
5659 | ResType = llvm::ScalableVectorType::get( |
5660 | llvm::Type::getInt16Ty(getVMContext()), 8); |
5661 | break; |
5662 | case BuiltinType::Int: |
5663 | case BuiltinType::UInt: |
5664 | ResType = llvm::ScalableVectorType::get( |
5665 | llvm::Type::getInt32Ty(getVMContext()), 4); |
5666 | break; |
5667 | case BuiltinType::Long: |
5668 | case BuiltinType::ULong: |
5669 | ResType = llvm::ScalableVectorType::get( |
5670 | llvm::Type::getInt64Ty(getVMContext()), 2); |
5671 | break; |
5672 | case BuiltinType::Half: |
5673 | ResType = llvm::ScalableVectorType::get( |
5674 | llvm::Type::getHalfTy(getVMContext()), 8); |
5675 | break; |
5676 | case BuiltinType::Float: |
5677 | ResType = llvm::ScalableVectorType::get( |
5678 | llvm::Type::getFloatTy(getVMContext()), 4); |
5679 | break; |
5680 | case BuiltinType::Double: |
5681 | ResType = llvm::ScalableVectorType::get( |
5682 | llvm::Type::getDoubleTy(getVMContext()), 2); |
5683 | break; |
5684 | case BuiltinType::BFloat16: |
5685 | ResType = llvm::ScalableVectorType::get( |
5686 | llvm::Type::getBFloatTy(getVMContext()), 8); |
5687 | break; |
5688 | } |
5689 | return ABIArgInfo::getDirect(ResType); |
5690 | } |
5691 | |
5692 | uint64_t Size = getContext().getTypeSize(Ty); |
5693 | |
5694 | if (isAndroid() && (Size <= 16)) { |
5695 | llvm::Type *ResType = llvm::Type::getInt16Ty(getVMContext()); |
5696 | return ABIArgInfo::getDirect(ResType); |
5697 | } |
5698 | if (Size <= 32) { |
5699 | llvm::Type *ResType = llvm::Type::getInt32Ty(getVMContext()); |
5700 | return ABIArgInfo::getDirect(ResType); |
5701 | } |
5702 | if (Size == 64) { |
5703 | auto *ResType = |
5704 | llvm::FixedVectorType::get(llvm::Type::getInt32Ty(getVMContext()), 2); |
5705 | return ABIArgInfo::getDirect(ResType); |
5706 | } |
5707 | if (Size == 128) { |
5708 | auto *ResType = |
5709 | llvm::FixedVectorType::get(llvm::Type::getInt32Ty(getVMContext()), 4); |
5710 | return ABIArgInfo::getDirect(ResType); |
5711 | } |
5712 | return getNaturalAlignIndirect(Ty, false); |
5713 | } |
5714 | |
5715 | ABIArgInfo |
5716 | AArch64ABIInfo::classifyArgumentType(QualType Ty, bool IsVariadic, |
5717 | unsigned CallingConvention) const { |
5718 | Ty = useFirstFieldIfTransparentUnion(Ty); |
5719 | |
5720 | |
5721 | if (isIllegalVectorType(Ty)) |
5722 | return coerceIllegalVector(Ty); |
5723 | |
5724 | if (!isAggregateTypeForABI(Ty)) { |
5725 | |
5726 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
5727 | Ty = EnumTy->getDecl()->getIntegerType(); |
5728 | |
5729 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
5730 | if (EIT->getNumBits() > 128) |
5731 | return getNaturalAlignIndirect(Ty); |
5732 | |
5733 | return (isPromotableIntegerTypeForABI(Ty) && isDarwinPCS() |
5734 | ? ABIArgInfo::getExtend(Ty) |
5735 | : ABIArgInfo::getDirect()); |
5736 | } |
5737 | |
5738 | |
5739 | |
5740 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) { |
5741 | return getNaturalAlignIndirect(Ty, RAA == |
5742 | CGCXXABI::RAA_DirectInMemory); |
5743 | } |
5744 | |
5745 | |
5746 | |
5747 | uint64_t Size = getContext().getTypeSize(Ty); |
5748 | bool IsEmpty = isEmptyRecord(getContext(), Ty, true); |
5749 | if (IsEmpty || Size == 0) { |
5750 | if (!getContext().getLangOpts().CPlusPlus || isDarwinPCS()) |
5751 | return ABIArgInfo::getIgnore(); |
5752 | |
5753 | |
5754 | |
5755 | if (IsEmpty && Size == 0) |
5756 | return ABIArgInfo::getIgnore(); |
5757 | return ABIArgInfo::getDirect(llvm::Type::getInt8Ty(getVMContext())); |
5758 | } |
5759 | |
5760 | |
5761 | const Type *Base = nullptr; |
5762 | uint64_t Members = 0; |
5763 | bool IsWin64 = Kind == Win64 || CallingConvention == llvm::CallingConv::Win64; |
5764 | bool IsWinVariadic = IsWin64 && IsVariadic; |
5765 | |
5766 | |
5767 | if (!IsWinVariadic && isHomogeneousAggregate(Ty, Base, Members)) { |
5768 | if (Kind != AArch64ABIInfo::AAPCS) |
5769 | return ABIArgInfo::getDirect( |
5770 | llvm::ArrayType::get(CGT.ConvertType(QualType(Base, 0)), Members)); |
5771 | |
5772 | |
5773 | |
5774 | unsigned Align = |
5775 | getContext().getTypeUnadjustedAlignInChars(Ty).getQuantity(); |
5776 | unsigned BaseAlign = getContext().getTypeAlignInChars(Base).getQuantity(); |
5777 | Align = (Align > BaseAlign && Align >= 16) ? 16 : 0; |
5778 | return ABIArgInfo::getDirect( |
5779 | llvm::ArrayType::get(CGT.ConvertType(QualType(Base, 0)), Members), 0, |
5780 | nullptr, true, Align); |
5781 | } |
5782 | |
5783 | |
5784 | if (Size <= 128) { |
5785 | |
5786 | |
5787 | if (getTarget().isRenderScriptTarget()) { |
5788 | return coerceToIntArray(Ty, getContext(), getVMContext()); |
5789 | } |
5790 | unsigned Alignment; |
5791 | if (Kind == AArch64ABIInfo::AAPCS) { |
5792 | Alignment = getContext().getTypeUnadjustedAlign(Ty); |
5793 | Alignment = Alignment < 128 ? 64 : 128; |
5794 | } else { |
5795 | Alignment = std::max(getContext().getTypeAlign(Ty), |
5796 | (unsigned)getTarget().getPointerWidth(0)); |
5797 | } |
5798 | Size = llvm::alignTo(Size, Alignment); |
5799 | |
5800 | |
5801 | |
5802 | llvm::Type *BaseTy = llvm::Type::getIntNTy(getVMContext(), Alignment); |
5803 | return ABIArgInfo::getDirect( |
5804 | Size == Alignment ? BaseTy |
5805 | : llvm::ArrayType::get(BaseTy, Size / Alignment)); |
5806 | } |
5807 | |
5808 | return getNaturalAlignIndirect(Ty, false); |
5809 | } |
5810 | |
5811 | ABIArgInfo AArch64ABIInfo::classifyReturnType(QualType RetTy, |
5812 | bool IsVariadic) const { |
5813 | if (RetTy->isVoidType()) |
5814 | return ABIArgInfo::getIgnore(); |
5815 | |
5816 | if (const auto *VT = RetTy->getAs<VectorType>()) { |
5817 | if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector || |
5818 | VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector) |
5819 | return coerceIllegalVector(RetTy); |
5820 | } |
5821 | |
5822 | |
5823 | if (RetTy->isVectorType() && getContext().getTypeSize(RetTy) > 128) |
5824 | return getNaturalAlignIndirect(RetTy); |
5825 | |
5826 | if (!isAggregateTypeForABI(RetTy)) { |
5827 | |
5828 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
5829 | RetTy = EnumTy->getDecl()->getIntegerType(); |
5830 | |
5831 | if (const auto *EIT = RetTy->getAs<ExtIntType>()) |
5832 | if (EIT->getNumBits() > 128) |
5833 | return getNaturalAlignIndirect(RetTy); |
5834 | |
5835 | return (isPromotableIntegerTypeForABI(RetTy) && isDarwinPCS() |
5836 | ? ABIArgInfo::getExtend(RetTy) |
5837 | : ABIArgInfo::getDirect()); |
5838 | } |
5839 | |
5840 | uint64_t Size = getContext().getTypeSize(RetTy); |
5841 | if (isEmptyRecord(getContext(), RetTy, true) || Size == 0) |
5842 | return ABIArgInfo::getIgnore(); |
5843 | |
5844 | const Type *Base = nullptr; |
5845 | uint64_t Members = 0; |
5846 | if (isHomogeneousAggregate(RetTy, Base, Members) && |
5847 | !(getTarget().getTriple().getArch() == llvm::Triple::aarch64_32 && |
5848 | IsVariadic)) |
5849 | |
5850 | return ABIArgInfo::getDirect(); |
5851 | |
5852 | |
5853 | if (Size <= 128) { |
5854 | |
5855 | |
5856 | if (getTarget().isRenderScriptTarget()) { |
5857 | return coerceToIntArray(RetTy, getContext(), getVMContext()); |
5858 | } |
5859 | |
5860 | if (Size <= 64 && getDataLayout().isLittleEndian()) { |
5861 | |
5862 | |
5863 | |
5864 | |
5865 | |
5866 | |
5867 | return ABIArgInfo::getDirect( |
5868 | llvm::IntegerType::get(getVMContext(), Size)); |
5869 | } |
5870 | |
5871 | unsigned Alignment = getContext().getTypeAlign(RetTy); |
5872 | Size = llvm::alignTo(Size, 64); |
5873 | |
5874 | |
5875 | |
5876 | if (Alignment < 128 && Size == 128) { |
5877 | llvm::Type *BaseTy = llvm::Type::getInt64Ty(getVMContext()); |
5878 | return ABIArgInfo::getDirect(llvm::ArrayType::get(BaseTy, Size / 64)); |
5879 | } |
5880 | return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(), Size)); |
5881 | } |
5882 | |
5883 | return getNaturalAlignIndirect(RetTy); |
5884 | } |
5885 | |
5886 | |
5887 | bool AArch64ABIInfo::isIllegalVectorType(QualType Ty) const { |
5888 | if (const VectorType *VT = Ty->getAs<VectorType>()) { |
5889 | |
5890 | |
5891 | |
5892 | if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector || |
5893 | VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector) |
5894 | return true; |
5895 | |
5896 | |
5897 | unsigned NumElements = VT->getNumElements(); |
5898 | uint64_t Size = getContext().getTypeSize(VT); |
5899 | |
5900 | if (!llvm::isPowerOf2_32(NumElements)) |
5901 | return true; |
5902 | |
5903 | |
5904 | |
5905 | llvm::Triple Triple = getTarget().getTriple(); |
5906 | if (Triple.getArch() == llvm::Triple::aarch64_32 && |
5907 | Triple.isOSBinFormatMachO()) |
5908 | return Size <= 32; |
5909 | |
5910 | return Size != 64 && (Size != 128 || NumElements == 1); |
5911 | } |
5912 | return false; |
5913 | } |
5914 | |
5915 | bool AArch64ABIInfo::isLegalVectorTypeForSwift(CharUnits totalSize, |
5916 | llvm::Type *eltTy, |
5917 | unsigned elts) const { |
5918 | if (!llvm::isPowerOf2_32(elts)) |
5919 | return false; |
5920 | if (totalSize.getQuantity() != 8 && |
5921 | (totalSize.getQuantity() != 16 || elts == 1)) |
5922 | return false; |
5923 | return true; |
5924 | } |
5925 | |
5926 | bool AArch64ABIInfo::isHomogeneousAggregateBaseType(QualType Ty) const { |
5927 | |
5928 | |
5929 | |
5930 | |
5931 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) { |
5932 | if (BT->isFloatingPoint()) |
5933 | return true; |
5934 | } else if (const VectorType *VT = Ty->getAs<VectorType>()) { |
5935 | unsigned VecSize = getContext().getTypeSize(VT); |
5936 | if (VecSize == 64 || VecSize == 128) |
5937 | return true; |
5938 | } |
5939 | return false; |
5940 | } |
5941 | |
5942 | bool AArch64ABIInfo::isHomogeneousAggregateSmallEnough(const Type *Base, |
5943 | uint64_t Members) const { |
5944 | return Members <= 4; |
5945 | } |
5946 | |
5947 | Address AArch64ABIInfo::EmitAAPCSVAArg(Address VAListAddr, QualType Ty, |
5948 | CodeGenFunction &CGF) const { |
5949 | ABIArgInfo AI = classifyArgumentType(Ty, true, |
5950 | CGF.CurFnInfo->getCallingConvention()); |
5951 | bool IsIndirect = AI.isIndirect(); |
5952 | |
5953 | llvm::Type *BaseTy = CGF.ConvertType(Ty); |
5954 | if (IsIndirect) |
5955 | BaseTy = llvm::PointerType::getUnqual(BaseTy); |
5956 | else if (AI.getCoerceToType()) |
5957 | BaseTy = AI.getCoerceToType(); |
5958 | |
5959 | unsigned NumRegs = 1; |
5960 | if (llvm::ArrayType *ArrTy = dyn_cast<llvm::ArrayType>(BaseTy)) { |
5961 | BaseTy = ArrTy->getElementType(); |
5962 | NumRegs = ArrTy->getNumElements(); |
5963 | } |
5964 | bool IsFPR = BaseTy->isFloatingPointTy() || BaseTy->isVectorTy(); |
5965 | |
5966 | |
5967 | |
5968 | |
5969 | |
5970 | |
5971 | |
5972 | |
5973 | |
5974 | |
5975 | |
5976 | |
5977 | llvm::BasicBlock *MaybeRegBlock = CGF.createBasicBlock("vaarg.maybe_reg"); |
5978 | llvm::BasicBlock *InRegBlock = CGF.createBasicBlock("vaarg.in_reg"); |
5979 | llvm::BasicBlock *OnStackBlock = CGF.createBasicBlock("vaarg.on_stack"); |
5980 | llvm::BasicBlock *ContBlock = CGF.createBasicBlock("vaarg.end"); |
5981 | |
5982 | CharUnits TySize = getContext().getTypeSizeInChars(Ty); |
5983 | CharUnits TyAlign = getContext().getTypeUnadjustedAlignInChars(Ty); |
5984 | |
5985 | Address reg_offs_p = Address::invalid(); |
5986 | llvm::Value *reg_offs = nullptr; |
5987 | int reg_top_index; |
5988 | int RegSize = IsIndirect ? 8 : TySize.getQuantity(); |
5989 | if (!IsFPR) { |
5990 | |
5991 | reg_offs_p = CGF.Builder.CreateStructGEP(VAListAddr, 3, "gr_offs_p"); |
5992 | reg_offs = CGF.Builder.CreateLoad(reg_offs_p, "gr_offs"); |
5993 | reg_top_index = 1; |
5994 | RegSize = llvm::alignTo(RegSize, 8); |
5995 | } else { |
5996 | |
5997 | reg_offs_p = CGF.Builder.CreateStructGEP(VAListAddr, 4, "vr_offs_p"); |
5998 | reg_offs = CGF.Builder.CreateLoad(reg_offs_p, "vr_offs"); |
5999 | reg_top_index = 2; |
6000 | RegSize = 16 * NumRegs; |
6001 | } |
6002 | |
6003 | |
6004 | |
6005 | |
6006 | |
6007 | |
6008 | |
6009 | |
6010 | |
6011 | llvm::Value *UsingStack = nullptr; |
6012 | UsingStack = CGF.Builder.CreateICmpSGE( |
6013 | reg_offs, llvm::ConstantInt::get(CGF.Int32Ty, 0)); |
6014 | |
6015 | CGF.Builder.CreateCondBr(UsingStack, OnStackBlock, MaybeRegBlock); |
6016 | |
6017 | |
6018 | |
6019 | CGF.EmitBlock(MaybeRegBlock); |
6020 | |
6021 | |
6022 | |
6023 | |
6024 | if (!IsFPR && !IsIndirect && TyAlign.getQuantity() > 8) { |
6025 | int Align = TyAlign.getQuantity(); |
6026 | |
6027 | reg_offs = CGF.Builder.CreateAdd( |
6028 | reg_offs, llvm::ConstantInt::get(CGF.Int32Ty, Align - 1), |
6029 | "align_regoffs"); |
6030 | reg_offs = CGF.Builder.CreateAnd( |
6031 | reg_offs, llvm::ConstantInt::get(CGF.Int32Ty, -Align), |
6032 | "aligned_regoffs"); |
6033 | } |
6034 | |
6035 | |
6036 | |
6037 | |
6038 | |
6039 | llvm::Value *NewOffset = nullptr; |
6040 | NewOffset = CGF.Builder.CreateAdd( |
6041 | reg_offs, llvm::ConstantInt::get(CGF.Int32Ty, RegSize), "new_reg_offs"); |
6042 | CGF.Builder.CreateStore(NewOffset, reg_offs_p); |
6043 | |
6044 | |
6045 | |
6046 | llvm::Value *InRegs = nullptr; |
6047 | InRegs = CGF.Builder.CreateICmpSLE( |
6048 | NewOffset, llvm::ConstantInt::get(CGF.Int32Ty, 0), "inreg"); |
6049 | |
6050 | CGF.Builder.CreateCondBr(InRegs, InRegBlock, OnStackBlock); |
6051 | |
6052 | |
6053 | |
6054 | |
6055 | |
6056 | |
6057 | |
6058 | CGF.EmitBlock(InRegBlock); |
6059 | |
6060 | llvm::Value *reg_top = nullptr; |
6061 | Address reg_top_p = |
6062 | CGF.Builder.CreateStructGEP(VAListAddr, reg_top_index, "reg_top_p"); |
6063 | reg_top = CGF.Builder.CreateLoad(reg_top_p, "reg_top"); |
6064 | Address BaseAddr(CGF.Builder.CreateInBoundsGEP(CGF.Int8Ty, reg_top, reg_offs), |
6065 | CharUnits::fromQuantity(IsFPR ? 16 : 8)); |
6066 | Address RegAddr = Address::invalid(); |
6067 | llvm::Type *MemTy = CGF.ConvertTypeForMem(Ty); |
6068 | |
6069 | if (IsIndirect) { |
6070 | |
6071 | |
6072 | MemTy = llvm::PointerType::getUnqual(MemTy); |
6073 | } |
6074 | |
6075 | const Type *Base = nullptr; |
6076 | uint64_t NumMembers = 0; |
6077 | bool IsHFA = isHomogeneousAggregate(Ty, Base, NumMembers); |
6078 | if (IsHFA && NumMembers > 1) { |
6079 | |
6080 | |
6081 | |
6082 | |
6083 | assert(!IsIndirect && "Homogeneous aggregates should be passed directly"); |
6084 | auto BaseTyInfo = getContext().getTypeInfoInChars(QualType(Base, 0)); |
6085 | llvm::Type *BaseTy = CGF.ConvertType(QualType(Base, 0)); |
6086 | llvm::Type *HFATy = llvm::ArrayType::get(BaseTy, NumMembers); |
6087 | Address Tmp = CGF.CreateTempAlloca(HFATy, |
6088 | std::max(TyAlign, BaseTyInfo.Align)); |
6089 | |
6090 | |
6091 | int Offset = 0; |
6092 | if (CGF.CGM.getDataLayout().isBigEndian() && |
6093 | BaseTyInfo.Width.getQuantity() < 16) |
6094 | Offset = 16 - BaseTyInfo.Width.getQuantity(); |
6095 | |
6096 | for (unsigned i = 0; i < NumMembers; ++i) { |
6097 | CharUnits BaseOffset = CharUnits::fromQuantity(16 * i + Offset); |
6098 | Address LoadAddr = |
6099 | CGF.Builder.CreateConstInBoundsByteGEP(BaseAddr, BaseOffset); |
6100 | LoadAddr = CGF.Builder.CreateElementBitCast(LoadAddr, BaseTy); |
6101 | |
6102 | Address StoreAddr = CGF.Builder.CreateConstArrayGEP(Tmp, i); |
6103 | |
6104 | llvm::Value *Elem = CGF.Builder.CreateLoad(LoadAddr); |
6105 | CGF.Builder.CreateStore(Elem, StoreAddr); |
6106 | } |
6107 | |
6108 | RegAddr = CGF.Builder.CreateElementBitCast(Tmp, MemTy); |
6109 | } else { |
6110 | |
6111 | |
6112 | |
6113 | CharUnits SlotSize = BaseAddr.getAlignment(); |
6114 | if (CGF.CGM.getDataLayout().isBigEndian() && !IsIndirect && |
6115 | (IsHFA || !isAggregateTypeForABI(Ty)) && |
6116 | TySize < SlotSize) { |
6117 | CharUnits Offset = SlotSize - TySize; |
6118 | BaseAddr = CGF.Builder.CreateConstInBoundsByteGEP(BaseAddr, Offset); |
6119 | } |
6120 | |
6121 | RegAddr = CGF.Builder.CreateElementBitCast(BaseAddr, MemTy); |
6122 | } |
6123 | |
6124 | CGF.EmitBranch(ContBlock); |
6125 | |
6126 | |
6127 | |
6128 | |
6129 | CGF.EmitBlock(OnStackBlock); |
6130 | |
6131 | Address stack_p = CGF.Builder.CreateStructGEP(VAListAddr, 0, "stack_p"); |
6132 | llvm::Value *OnStackPtr = CGF.Builder.CreateLoad(stack_p, "stack"); |
6133 | |
6134 | |
6135 | |
6136 | if (!IsIndirect && TyAlign.getQuantity() > 8) { |
6137 | int Align = TyAlign.getQuantity(); |
6138 | |
6139 | OnStackPtr = CGF.Builder.CreatePtrToInt(OnStackPtr, CGF.Int64Ty); |
6140 | |
6141 | OnStackPtr = CGF.Builder.CreateAdd( |
6142 | OnStackPtr, llvm::ConstantInt::get(CGF.Int64Ty, Align - 1), |
6143 | "align_stack"); |
6144 | OnStackPtr = CGF.Builder.CreateAnd( |
6145 | OnStackPtr, llvm::ConstantInt::get(CGF.Int64Ty, -Align), |
6146 | "align_stack"); |
6147 | |
6148 | OnStackPtr = CGF.Builder.CreateIntToPtr(OnStackPtr, CGF.Int8PtrTy); |
6149 | } |
6150 | Address OnStackAddr(OnStackPtr, |
6151 | std::max(CharUnits::fromQuantity(8), TyAlign)); |
6152 | |
6153 | |
6154 | CharUnits StackSlotSize = CharUnits::fromQuantity(8); |
6155 | CharUnits StackSize; |
6156 | if (IsIndirect) |
6157 | StackSize = StackSlotSize; |
6158 | else |
6159 | StackSize = TySize.alignTo(StackSlotSize); |
6160 | |
6161 | llvm::Value *StackSizeC = CGF.Builder.getSize(StackSize); |
6162 | llvm::Value *NewStack = CGF.Builder.CreateInBoundsGEP( |
6163 | CGF.Int8Ty, OnStackPtr, StackSizeC, "new_stack"); |
6164 | |
6165 | |
6166 | CGF.Builder.CreateStore(NewStack, stack_p); |
6167 | |
6168 | if (CGF.CGM.getDataLayout().isBigEndian() && !isAggregateTypeForABI(Ty) && |
6169 | TySize < StackSlotSize) { |
6170 | CharUnits Offset = StackSlotSize - TySize; |
6171 | OnStackAddr = CGF.Builder.CreateConstInBoundsByteGEP(OnStackAddr, Offset); |
6172 | } |
6173 | |
6174 | OnStackAddr = CGF.Builder.CreateElementBitCast(OnStackAddr, MemTy); |
6175 | |
6176 | CGF.EmitBranch(ContBlock); |
6177 | |
6178 | |
6179 | |
6180 | |
6181 | CGF.EmitBlock(ContBlock); |
6182 | |
6183 | Address ResAddr = emitMergePHI(CGF, RegAddr, InRegBlock, |
6184 | OnStackAddr, OnStackBlock, "vaargs.addr"); |
6185 | |
6186 | if (IsIndirect) |
6187 | return Address(CGF.Builder.CreateLoad(ResAddr, "vaarg.addr"), |
6188 | TyAlign); |
6189 | |
6190 | return ResAddr; |
6191 | } |
6192 | |
6193 | Address AArch64ABIInfo::EmitDarwinVAArg(Address VAListAddr, QualType Ty, |
6194 | CodeGenFunction &CGF) const { |
6195 | |
6196 | |
6197 | |
6198 | if (!isAggregateTypeForABI(Ty) && !isIllegalVectorType(Ty)) |
6199 | return EmitVAArgInstr(CGF, VAListAddr, Ty, ABIArgInfo::getDirect()); |
6200 | |
6201 | uint64_t PointerSize = getTarget().getPointerWidth(0) / 8; |
6202 | CharUnits SlotSize = CharUnits::fromQuantity(PointerSize); |
6203 | |
6204 | |
6205 | if (isEmptyRecord(getContext(), Ty, true)) { |
6206 | Address Addr(CGF.Builder.CreateLoad(VAListAddr, "ap.cur"), SlotSize); |
6207 | Addr = CGF.Builder.CreateElementBitCast(Addr, CGF.ConvertTypeForMem(Ty)); |
6208 | return Addr; |
6209 | } |
6210 | |
6211 | |
6212 | |
6213 | auto TyInfo = getContext().getTypeInfoInChars(Ty); |
6214 | |
6215 | |
6216 | |
6217 | bool IsIndirect = false; |
6218 | if (TyInfo.Width.getQuantity() > 16) { |
6219 | const Type *Base = nullptr; |
6220 | uint64_t Members = 0; |
6221 | IsIndirect = !isHomogeneousAggregate(Ty, Base, Members); |
6222 | } |
6223 | |
6224 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, IsIndirect, |
6225 | TyInfo, SlotSize, true); |
6226 | } |
6227 | |
6228 | Address AArch64ABIInfo::EmitMSVAArg(CodeGenFunction &CGF, Address VAListAddr, |
6229 | QualType Ty) const { |
6230 | bool IsIndirect = false; |
6231 | |
6232 | |
6233 | if (isAggregateTypeForABI(Ty) && getContext().getTypeSize(Ty) > 128) |
6234 | IsIndirect = true; |
6235 | |
6236 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, IsIndirect, |
6237 | CGF.getContext().getTypeInfoInChars(Ty), |
6238 | CharUnits::fromQuantity(8), |
6239 | false); |
6240 | } |
6241 | |
6242 | |
6243 | |
6244 | |
6245 | |
6246 | namespace { |
6247 | |
6248 | class ARMABIInfo : public SwiftABIInfo { |
6249 | public: |
6250 | enum ABIKind { |
6251 | APCS = 0, |
6252 | AAPCS = 1, |
6253 | AAPCS_VFP = 2, |
6254 | AAPCS16_VFP = 3, |
6255 | }; |
6256 | |
6257 | private: |
6258 | ABIKind Kind; |
6259 | bool IsFloatABISoftFP; |
6260 | |
6261 | public: |
6262 | ARMABIInfo(CodeGenTypes &CGT, ABIKind _Kind) |
6263 | : SwiftABIInfo(CGT), Kind(_Kind) { |
6264 | setCCs(); |
6265 | IsFloatABISoftFP = CGT.getCodeGenOpts().FloatABI == "softfp" || |
6266 | CGT.getCodeGenOpts().FloatABI == ""; |
6267 | } |
6268 | |
6269 | bool isEABI() const { |
6270 | switch (getTarget().getTriple().getEnvironment()) { |
6271 | case llvm::Triple::Android: |
6272 | case llvm::Triple::EABI: |
6273 | case llvm::Triple::EABIHF: |
6274 | case llvm::Triple::GNUEABI: |
6275 | case llvm::Triple::GNUEABIHF: |
6276 | case llvm::Triple::MuslEABI: |
6277 | case llvm::Triple::MuslEABIHF: |
6278 | return true; |
6279 | default: |
6280 | return false; |
6281 | } |
6282 | } |
6283 | |
6284 | bool isEABIHF() const { |
6285 | switch (getTarget().getTriple().getEnvironment()) { |
6286 | case llvm::Triple::EABIHF: |
6287 | case llvm::Triple::GNUEABIHF: |
6288 | case llvm::Triple::MuslEABIHF: |
6289 | return true; |
6290 | default: |
6291 | return false; |
6292 | } |
6293 | } |
6294 | |
6295 | ABIKind getABIKind() const { return Kind; } |
6296 | |
6297 | bool allowBFloatArgsAndRet() const override { |
6298 | return !IsFloatABISoftFP && getTarget().hasBFloat16Type(); |
6299 | } |
6300 | |
6301 | private: |
6302 | ABIArgInfo classifyReturnType(QualType RetTy, bool isVariadic, |
6303 | unsigned functionCallConv) const; |
6304 | ABIArgInfo classifyArgumentType(QualType RetTy, bool isVariadic, |
6305 | unsigned functionCallConv) const; |
6306 | ABIArgInfo classifyHomogeneousAggregate(QualType Ty, const Type *Base, |
6307 | uint64_t Members) const; |
6308 | ABIArgInfo coerceIllegalVector(QualType Ty) const; |
6309 | bool isIllegalVectorType(QualType Ty) const; |
6310 | bool containsAnyFP16Vectors(QualType Ty) const; |
6311 | |
6312 | bool isHomogeneousAggregateBaseType(QualType Ty) const override; |
6313 | bool isHomogeneousAggregateSmallEnough(const Type *Ty, |
6314 | uint64_t Members) const override; |
6315 | |
6316 | bool isEffectivelyAAPCS_VFP(unsigned callConvention, bool acceptHalf) const; |
6317 | |
6318 | void computeInfo(CGFunctionInfo &FI) const override; |
6319 | |
6320 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
6321 | QualType Ty) const override; |
6322 | |
6323 | llvm::CallingConv::ID getLLVMDefaultCC() const; |
6324 | llvm::CallingConv::ID getABIDefaultCC() const; |
6325 | void setCCs(); |
6326 | |
6327 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars, |
6328 | bool asReturnValue) const override { |
6329 | return occupiesMoreThan(CGT, scalars, 4); |
6330 | } |
6331 | bool isSwiftErrorInRegister() const override { |
6332 | return true; |
6333 | } |
6334 | bool isLegalVectorTypeForSwift(CharUnits totalSize, llvm::Type *eltTy, |
6335 | unsigned elts) const override; |
6336 | }; |
6337 | |
6338 | class ARMTargetCodeGenInfo : public TargetCodeGenInfo { |
6339 | public: |
6340 | ARMTargetCodeGenInfo(CodeGenTypes &CGT, ARMABIInfo::ABIKind K) |
6341 | : TargetCodeGenInfo(std::make_unique<ARMABIInfo>(CGT, K)) {} |
6342 | |
6343 | const ARMABIInfo &getABIInfo() const { |
6344 | return static_cast<const ARMABIInfo&>(TargetCodeGenInfo::getABIInfo()); |
6345 | } |
6346 | |
6347 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
6348 | return 13; |
6349 | } |
6350 | |
6351 | StringRef getARCRetainAutoreleasedReturnValueMarker() const override { |
6352 | return "mov\tr7, r7\t\t// marker for objc_retainAutoreleaseReturnValue"; |
6353 | } |
6354 | |
6355 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
6356 | llvm::Value *Address) const override { |
6357 | llvm::Value *Four8 = llvm::ConstantInt::get(CGF.Int8Ty, 4); |
6358 | |
6359 | |
6360 | AssignToArrayRange(CGF.Builder, Address, Four8, 0, 15); |
6361 | return false; |
6362 | } |
6363 | |
6364 | unsigned getSizeOfUnwindException() const override { |
6365 | if (getABIInfo().isEABI()) return 88; |
6366 | return TargetCodeGenInfo::getSizeOfUnwindException(); |
6367 | } |
6368 | |
6369 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
6370 | CodeGen::CodeGenModule &CGM) const override { |
6371 | if (GV->isDeclaration()) |
6372 | return; |
6373 | const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); |
6374 | if (!FD) |
6375 | return; |
6376 | |
6377 | const ARMInterruptAttr *Attr = FD->getAttr<ARMInterruptAttr>(); |
6378 | if (!Attr) |
6379 | return; |
6380 | |
6381 | const char *Kind; |
6382 | switch (Attr->getInterrupt()) { |
6383 | case ARMInterruptAttr::Generic: Kind = ""; break; |
6384 | case ARMInterruptAttr::IRQ: Kind = "IRQ"; break; |
6385 | case ARMInterruptAttr::FIQ: Kind = "FIQ"; break; |
6386 | case ARMInterruptAttr::SWI: Kind = "SWI"; break; |
6387 | case ARMInterruptAttr::ABORT: Kind = "ABORT"; break; |
6388 | case ARMInterruptAttr::UNDEF: Kind = "UNDEF"; break; |
6389 | } |
6390 | |
6391 | llvm::Function *Fn = cast<llvm::Function>(GV); |
6392 | |
6393 | Fn->addFnAttr("interrupt", Kind); |
6394 | |
6395 | ARMABIInfo::ABIKind ABI = cast<ARMABIInfo>(getABIInfo()).getABIKind(); |
6396 | if (ABI == ARMABIInfo::APCS) |
6397 | return; |
6398 | |
6399 | |
6400 | |
6401 | |
6402 | llvm::AttrBuilder B; |
6403 | B.addStackAlignmentAttr(8); |
6404 | Fn->addFnAttrs(B); |
6405 | } |
6406 | }; |
6407 | |
6408 | class WindowsARMTargetCodeGenInfo : public ARMTargetCodeGenInfo { |
6409 | public: |
6410 | WindowsARMTargetCodeGenInfo(CodeGenTypes &CGT, ARMABIInfo::ABIKind K) |
6411 | : ARMTargetCodeGenInfo(CGT, K) {} |
6412 | |
6413 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
6414 | CodeGen::CodeGenModule &CGM) const override; |
6415 | |
6416 | void getDependentLibraryOption(llvm::StringRef Lib, |
6417 | llvm::SmallString<24> &Opt) const override { |
6418 | Opt = "/DEFAULTLIB:" + qualifyWindowsLibrary(Lib); |
6419 | } |
6420 | |
6421 | void getDetectMismatchOption(llvm::StringRef Name, llvm::StringRef Value, |
6422 | llvm::SmallString<32> &Opt) const override { |
6423 | Opt = "/FAILIFMISMATCH:\"" + Name.str() + "=" + Value.str() + "\""; |
6424 | } |
6425 | }; |
6426 | |
6427 | void WindowsARMTargetCodeGenInfo::setTargetAttributes( |
6428 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM) const { |
6429 | ARMTargetCodeGenInfo::setTargetAttributes(D, GV, CGM); |
6430 | if (GV->isDeclaration()) |
6431 | return; |
6432 | addStackProbeTargetAttributes(D, GV, CGM); |
6433 | } |
6434 | } |
6435 | |
6436 | void ARMABIInfo::computeInfo(CGFunctionInfo &FI) const { |
6437 | if (!::classifyReturnType(getCXXABI(), FI, *this)) |
6438 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType(), FI.isVariadic(), |
6439 | FI.getCallingConvention()); |
6440 | |
6441 | for (auto &I : FI.arguments()) |
6442 | I.info = classifyArgumentType(I.type, FI.isVariadic(), |
6443 | FI.getCallingConvention()); |
6444 | |
6445 | |
6446 | |
6447 | if (FI.getCallingConvention() != llvm::CallingConv::C) |
6448 | return; |
6449 | |
6450 | llvm::CallingConv::ID cc = getRuntimeCC(); |
6451 | if (cc != llvm::CallingConv::C) |
6452 | FI.setEffectiveCallingConvention(cc); |
6453 | } |
6454 | |
6455 | |
6456 | llvm::CallingConv::ID ARMABIInfo::getLLVMDefaultCC() const { |
6457 | |
6458 | if (isEABIHF() || getTarget().getTriple().isWatchABI()) |
6459 | return llvm::CallingConv::ARM_AAPCS_VFP; |
6460 | else if (isEABI()) |
6461 | return llvm::CallingConv::ARM_AAPCS; |
6462 | else |
6463 | return llvm::CallingConv::ARM_APCS; |
6464 | } |
6465 | |
6466 | |
6467 | |
6468 | llvm::CallingConv::ID ARMABIInfo::getABIDefaultCC() const { |
6469 | switch (getABIKind()) { |
6470 | case APCS: return llvm::CallingConv::ARM_APCS; |
6471 | case AAPCS: return llvm::CallingConv::ARM_AAPCS; |
6472 | case AAPCS_VFP: return llvm::CallingConv::ARM_AAPCS_VFP; |
6473 | case AAPCS16_VFP: return llvm::CallingConv::ARM_AAPCS_VFP; |
6474 | } |
6475 | llvm_unreachable("bad ABI kind"); |
6476 | } |
6477 | |
6478 | void ARMABIInfo::setCCs() { |
6479 | assert(getRuntimeCC() == llvm::CallingConv::C); |
6480 | |
6481 | |
6482 | |
6483 | llvm::CallingConv::ID abiCC = getABIDefaultCC(); |
6484 | if (abiCC != getLLVMDefaultCC()) |
6485 | RuntimeCC = abiCC; |
6486 | } |
6487 | |
6488 | ABIArgInfo ARMABIInfo::coerceIllegalVector(QualType Ty) const { |
6489 | uint64_t Size = getContext().getTypeSize(Ty); |
6490 | if (Size <= 32) { |
6491 | llvm::Type *ResType = |
6492 | llvm::Type::getInt32Ty(getVMContext()); |
6493 | return ABIArgInfo::getDirect(ResType); |
6494 | } |
6495 | if (Size == 64 || Size == 128) { |
6496 | auto *ResType = llvm::FixedVectorType::get( |
6497 | llvm::Type::getInt32Ty(getVMContext()), Size / 32); |
6498 | return ABIArgInfo::getDirect(ResType); |
6499 | } |
6500 | return getNaturalAlignIndirect(Ty, false); |
6501 | } |
6502 | |
6503 | ABIArgInfo ARMABIInfo::classifyHomogeneousAggregate(QualType Ty, |
6504 | const Type *Base, |
6505 | uint64_t Members) const { |
6506 | assert(Base && "Base class should be set for homogeneous aggregate"); |
6507 | |
6508 | if (const VectorType *VT = Base->getAs<VectorType>()) { |
6509 | |
6510 | if (!getTarget().hasLegalHalfType() && containsAnyFP16Vectors(Ty)) { |
6511 | uint64_t Size = getContext().getTypeSize(VT); |
6512 | auto *NewVecTy = llvm::FixedVectorType::get( |
6513 | llvm::Type::getInt32Ty(getVMContext()), Size / 32); |
6514 | llvm::Type *Ty = llvm::ArrayType::get(NewVecTy, Members); |
6515 | return ABIArgInfo::getDirect(Ty, 0, nullptr, false); |
6516 | } |
6517 | } |
6518 | unsigned Align = 0; |
6519 | if (getABIKind() == ARMABIInfo::AAPCS || |
6520 | getABIKind() == ARMABIInfo::AAPCS_VFP) { |
6521 | |
6522 | |
6523 | Align = getContext().getTypeUnadjustedAlignInChars(Ty).getQuantity(); |
6524 | unsigned BaseAlign = getContext().getTypeAlignInChars(Base).getQuantity(); |
6525 | Align = (Align > BaseAlign && Align >= 8) ? 8 : 0; |
6526 | } |
6527 | return ABIArgInfo::getDirect(nullptr, 0, nullptr, false, Align); |
6528 | } |
6529 | |
6530 | ABIArgInfo ARMABIInfo::classifyArgumentType(QualType Ty, bool isVariadic, |
6531 | unsigned functionCallConv) const { |
6532 | |
6533 | |
6534 | |
6535 | |
6536 | |
6537 | |
6538 | |
6539 | |
6540 | bool IsAAPCS_VFP = |
6541 | !isVariadic && isEffectivelyAAPCS_VFP(functionCallConv, false); |
6542 | |
6543 | Ty = useFirstFieldIfTransparentUnion(Ty); |
6544 | |
6545 | |
6546 | if (isIllegalVectorType(Ty)) |
6547 | return coerceIllegalVector(Ty); |
6548 | |
6549 | if (!isAggregateTypeForABI(Ty)) { |
6550 | |
6551 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) { |
6552 | Ty = EnumTy->getDecl()->getIntegerType(); |
6553 | } |
6554 | |
6555 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
6556 | if (EIT->getNumBits() > 64) |
6557 | return getNaturalAlignIndirect(Ty, true); |
6558 | |
6559 | return (isPromotableIntegerTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
6560 | : ABIArgInfo::getDirect()); |
6561 | } |
6562 | |
6563 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) { |
6564 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
6565 | } |
6566 | |
6567 | |
6568 | if (isEmptyRecord(getContext(), Ty, true)) |
6569 | return ABIArgInfo::getIgnore(); |
6570 | |
6571 | if (IsAAPCS_VFP) { |
6572 | |
6573 | |
6574 | const Type *Base = nullptr; |
6575 | uint64_t Members = 0; |
6576 | if (isHomogeneousAggregate(Ty, Base, Members)) |
6577 | return classifyHomogeneousAggregate(Ty, Base, Members); |
6578 | } else if (getABIKind() == ARMABIInfo::AAPCS16_VFP) { |
6579 | |
6580 | |
6581 | |
6582 | const Type *Base = nullptr; |
6583 | uint64_t Members = 0; |
6584 | if (isHomogeneousAggregate(Ty, Base, Members)) { |
6585 | assert(Base && Members <= 4 && "unexpected homogeneous aggregate"); |
6586 | llvm::Type *Ty = |
6587 | llvm::ArrayType::get(CGT.ConvertType(QualType(Base, 0)), Members); |
6588 | return ABIArgInfo::getDirect(Ty, 0, nullptr, false); |
6589 | } |
6590 | } |
6591 | |
6592 | if (getABIKind() == ARMABIInfo::AAPCS16_VFP && |
6593 | getContext().getTypeSizeInChars(Ty) > CharUnits::fromQuantity(16)) { |
6594 | |
6595 | |
6596 | |
6597 | return ABIArgInfo::getIndirect( |
6598 | CharUnits::fromQuantity(getContext().getTypeAlign(Ty) / 8), false); |
6599 | } |
6600 | |
6601 | |
6602 | |
6603 | |
6604 | |
6605 | uint64_t ABIAlign = 4; |
6606 | uint64_t TyAlign; |
6607 | if (getABIKind() == ARMABIInfo::AAPCS_VFP || |
6608 | getABIKind() == ARMABIInfo::AAPCS) { |
6609 | TyAlign = getContext().getTypeUnadjustedAlignInChars(Ty).getQuantity(); |
6610 | ABIAlign = std::min(std::max(TyAlign, (uint64_t)4), (uint64_t)8); |
6611 | } else { |
6612 | TyAlign = getContext().getTypeAlignInChars(Ty).getQuantity(); |
6613 | } |
6614 | if (getContext().getTypeSizeInChars(Ty) > CharUnits::fromQuantity(64)) { |
6615 | assert(getABIKind() != ARMABIInfo::AAPCS16_VFP && "unexpected byval"); |
6616 | return ABIArgInfo::getIndirect(CharUnits::fromQuantity(ABIAlign), |
6617 | true, |
6618 | TyAlign > ABIAlign); |
6619 | } |
6620 | |
6621 | |
6622 | |
6623 | if (getTarget().isRenderScriptTarget()) { |
6624 | return coerceToIntArray(Ty, getContext(), getVMContext()); |
6625 | } |
6626 | |
6627 | |
6628 | llvm::Type* ElemTy; |
6629 | unsigned SizeRegs; |
6630 | |
6631 | |
6632 | if (TyAlign <= 4) { |
6633 | ElemTy = llvm::Type::getInt32Ty(getVMContext()); |
6634 | SizeRegs = (getContext().getTypeSize(Ty) + 31) / 32; |
6635 | } else { |
6636 | ElemTy = llvm::Type::getInt64Ty(getVMContext()); |
6637 | SizeRegs = (getContext().getTypeSize(Ty) + 63) / 64; |
6638 | } |
6639 | |
6640 | return ABIArgInfo::getDirect(llvm::ArrayType::get(ElemTy, SizeRegs)); |
6641 | } |
6642 | |
6643 | static bool isIntegerLikeType(QualType Ty, ASTContext &Context, |
6644 | llvm::LLVMContext &VMContext) { |
6645 | |
6646 | |
6647 | |
6648 | |
6649 | uint64_t Size = Context.getTypeSize(Ty); |
6650 | |
6651 | |
6652 | if (Size > 32) |
6653 | return false; |
6654 | |
6655 | |
6656 | if (Ty->isVectorType()) |
6657 | return false; |
6658 | |
6659 | |
6660 | if (Ty->isRealFloatingType()) |
6661 | return false; |
6662 | |
6663 | |
6664 | if (Ty->getAs<BuiltinType>() || Ty->isPointerType()) |
6665 | return true; |
6666 | |
6667 | |
6668 | if (const ComplexType *CT = Ty->getAs<ComplexType>()) |
6669 | return isIntegerLikeType(CT->getElementType(), Context, VMContext); |
6670 | |
6671 | |
6672 | |
6673 | |
6674 | |
6675 | const RecordType *RT = Ty->getAs<RecordType>(); |
6676 | if (!RT) return false; |
6677 | |
6678 | |
6679 | const RecordDecl *RD = RT->getDecl(); |
6680 | if (RD->hasFlexibleArrayMember()) |
6681 | return false; |
6682 | |
6683 | |
6684 | |
6685 | const ASTRecordLayout &Layout = Context.getASTRecordLayout(RD); |
6686 | |
6687 | bool HadField = false; |
6688 | unsigned idx = 0; |
6689 | for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end(); |
6690 | i != e; ++i, ++idx) { |
6691 | const FieldDecl *FD = *i; |
6692 | |
6693 | |
6694 | |
6695 | |
6696 | |
6697 | if (FD->isBitField()) { |
6698 | if (!RD->isUnion()) |
6699 | HadField = true; |
6700 | |
6701 | if (!isIntegerLikeType(FD->getType(), Context, VMContext)) |
6702 | return false; |
6703 | |
6704 | continue; |
6705 | } |
6706 | |
6707 | |
6708 | if (Layout.getFieldOffset(idx) != 0) |
6709 | return false; |
6710 | |
6711 | if (!isIntegerLikeType(FD->getType(), Context, VMContext)) |
6712 | return false; |
6713 | |
6714 | |
6715 | |
6716 | |
6717 | if (!RD->isUnion()) { |
6718 | if (HadField) |
6719 | return false; |
6720 | |
6721 | HadField = true; |
6722 | } |
6723 | } |
6724 | |
6725 | return true; |
6726 | } |
6727 | |
6728 | ABIArgInfo ARMABIInfo::classifyReturnType(QualType RetTy, bool isVariadic, |
6729 | unsigned functionCallConv) const { |
6730 | |
6731 | |
6732 | bool IsAAPCS_VFP = |
6733 | !isVariadic && isEffectivelyAAPCS_VFP(functionCallConv, true); |
6734 | |
6735 | if (RetTy->isVoidType()) |
6736 | return ABIArgInfo::getIgnore(); |
6737 | |
6738 | if (const VectorType *VT = RetTy->getAs<VectorType>()) { |
6739 | |
6740 | if (getContext().getTypeSize(RetTy) > 128) |
6741 | return getNaturalAlignIndirect(RetTy); |
6742 | |
6743 | |
6744 | if ((!getTarget().hasLegalHalfType() && |
6745 | (VT->getElementType()->isFloat16Type() || |
6746 | VT->getElementType()->isHalfType())) || |
6747 | (IsFloatABISoftFP && |
6748 | VT->getElementType()->isBFloat16Type())) |
6749 | return coerceIllegalVector(RetTy); |
6750 | } |
6751 | |
6752 | if (!isAggregateTypeForABI(RetTy)) { |
6753 | |
6754 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
6755 | RetTy = EnumTy->getDecl()->getIntegerType(); |
6756 | |
6757 | if (const auto *EIT = RetTy->getAs<ExtIntType>()) |
6758 | if (EIT->getNumBits() > 64) |
6759 | return getNaturalAlignIndirect(RetTy, false); |
6760 | |
6761 | return isPromotableIntegerTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
6762 | : ABIArgInfo::getDirect(); |
6763 | } |
6764 | |
6765 | |
6766 | if (getABIKind() == APCS) { |
6767 | if (isEmptyRecord(getContext(), RetTy, false)) |
6768 | return ABIArgInfo::getIgnore(); |
6769 | |
6770 | |
6771 | |
6772 | |
6773 | |
6774 | if (RetTy->isAnyComplexType()) |
6775 | return ABIArgInfo::getDirect(llvm::IntegerType::get( |
6776 | getVMContext(), getContext().getTypeSize(RetTy))); |
6777 | |
6778 | |
6779 | if (isIntegerLikeType(RetTy, getContext(), getVMContext())) { |
6780 | |
6781 | uint64_t Size = getContext().getTypeSize(RetTy); |
6782 | if (Size <= 8) |
6783 | return ABIArgInfo::getDirect(llvm::Type::getInt8Ty(getVMContext())); |
6784 | if (Size <= 16) |
6785 | return ABIArgInfo::getDirect(llvm::Type::getInt16Ty(getVMContext())); |
6786 | return ABIArgInfo::getDirect(llvm::Type::getInt32Ty(getVMContext())); |
6787 | } |
6788 | |
6789 | |
6790 | return getNaturalAlignIndirect(RetTy); |
6791 | } |
6792 | |
6793 | |
6794 | |
6795 | if (isEmptyRecord(getContext(), RetTy, true)) |
6796 | return ABIArgInfo::getIgnore(); |
6797 | |
6798 | |
6799 | if (IsAAPCS_VFP) { |
6800 | const Type *Base = nullptr; |
6801 | uint64_t Members = 0; |
6802 | if (isHomogeneousAggregate(RetTy, Base, Members)) |
6803 | return classifyHomogeneousAggregate(RetTy, Base, Members); |
6804 | } |
6805 | |
6806 | |
6807 | |
6808 | uint64_t Size = getContext().getTypeSize(RetTy); |
6809 | if (Size <= 32) { |
6810 | |
6811 | |
6812 | if (getTarget().isRenderScriptTarget()) { |
6813 | return coerceToIntArray(RetTy, getContext(), getVMContext()); |
6814 | } |
6815 | if (getDataLayout().isBigEndian()) |
6816 | |
6817 | return ABIArgInfo::getDirect(llvm::Type::getInt32Ty(getVMContext())); |
6818 | |
6819 | |
6820 | if (Size <= 8) |
6821 | return ABIArgInfo::getDirect(llvm::Type::getInt8Ty(getVMContext())); |
6822 | if (Size <= 16) |
6823 | return ABIArgInfo::getDirect(llvm::Type::getInt16Ty(getVMContext())); |
6824 | return ABIArgInfo::getDirect(llvm::Type::getInt32Ty(getVMContext())); |
6825 | } else if (Size <= 128 && getABIKind() == AAPCS16_VFP) { |
6826 | llvm::Type *Int32Ty = llvm::Type::getInt32Ty(getVMContext()); |
6827 | llvm::Type *CoerceTy = |
6828 | llvm::ArrayType::get(Int32Ty, llvm::alignTo(Size, 32) / 32); |
6829 | return ABIArgInfo::getDirect(CoerceTy); |
6830 | } |
6831 | |
6832 | return getNaturalAlignIndirect(RetTy); |
6833 | } |
6834 | |
6835 | |
6836 | bool ARMABIInfo::isIllegalVectorType(QualType Ty) const { |
6837 | if (const VectorType *VT = Ty->getAs<VectorType> ()) { |
6838 | |
6839 | |
6840 | |
6841 | |
6842 | |
6843 | |
6844 | if ((!getTarget().hasLegalHalfType() && |
6845 | (VT->getElementType()->isFloat16Type() || |
6846 | VT->getElementType()->isHalfType())) || |
6847 | (IsFloatABISoftFP && |
6848 | VT->getElementType()->isBFloat16Type())) |
6849 | return true; |
6850 | if (isAndroid()) { |
6851 | |
6852 | |
6853 | |
6854 | |
6855 | |
6856 | unsigned NumElements = VT->getNumElements(); |
6857 | |
6858 | if (!llvm::isPowerOf2_32(NumElements) && NumElements != 3) |
6859 | return true; |
6860 | } else { |
6861 | |
6862 | unsigned NumElements = VT->getNumElements(); |
6863 | uint64_t Size = getContext().getTypeSize(VT); |
6864 | |
6865 | if (!llvm::isPowerOf2_32(NumElements)) |
6866 | return true; |
6867 | |
6868 | return Size <= 32; |
6869 | } |
6870 | } |
6871 | return false; |
6872 | } |
6873 | |
6874 | |
6875 | bool ARMABIInfo::containsAnyFP16Vectors(QualType Ty) const { |
6876 | if (const ConstantArrayType *AT = getContext().getAsConstantArrayType(Ty)) { |
6877 | uint64_t NElements = AT->getSize().getZExtValue(); |
6878 | if (NElements == 0) |
6879 | return false; |
6880 | return containsAnyFP16Vectors(AT->getElementType()); |
6881 | } else if (const RecordType *RT = Ty->getAs<RecordType>()) { |
6882 | const RecordDecl *RD = RT->getDecl(); |
6883 | |
6884 | |
6885 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
6886 | if (llvm::any_of(CXXRD->bases(), [this](const CXXBaseSpecifier &B) { |
6887 | return containsAnyFP16Vectors(B.getType()); |
6888 | })) |
6889 | return true; |
6890 | |
6891 | if (llvm::any_of(RD->fields(), [this](FieldDecl *FD) { |
6892 | return FD && containsAnyFP16Vectors(FD->getType()); |
6893 | })) |
6894 | return true; |
6895 | |
6896 | return false; |
6897 | } else { |
6898 | if (const VectorType *VT = Ty->getAs<VectorType>()) |
6899 | return (VT->getElementType()->isFloat16Type() || |
6900 | VT->getElementType()->isBFloat16Type() || |
6901 | VT->getElementType()->isHalfType()); |
6902 | return false; |
6903 | } |
6904 | } |
6905 | |
6906 | bool ARMABIInfo::isLegalVectorTypeForSwift(CharUnits vectorSize, |
6907 | llvm::Type *eltTy, |
6908 | unsigned numElts) const { |
6909 | if (!llvm::isPowerOf2_32(numElts)) |
6910 | return false; |
6911 | unsigned size = getDataLayout().getTypeStoreSizeInBits(eltTy); |
6912 | if (size > 64) |
6913 | return false; |
6914 | if (vectorSize.getQuantity() != 8 && |
6915 | (vectorSize.getQuantity() != 16 || numElts == 1)) |
6916 | return false; |
6917 | return true; |
6918 | } |
6919 | |
6920 | bool ARMABIInfo::isHomogeneousAggregateBaseType(QualType Ty) const { |
6921 | |
6922 | |
6923 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) { |
6924 | if (BT->getKind() == BuiltinType::Float || |
6925 | BT->getKind() == BuiltinType::Double || |
6926 | BT->getKind() == BuiltinType::LongDouble) |
6927 | return true; |
6928 | } else if (const VectorType *VT = Ty->getAs<VectorType>()) { |
6929 | unsigned VecSize = getContext().getTypeSize(VT); |
6930 | if (VecSize == 64 || VecSize == 128) |
6931 | return true; |
6932 | } |
6933 | return false; |
6934 | } |
6935 | |
6936 | bool ARMABIInfo::isHomogeneousAggregateSmallEnough(const Type *Base, |
6937 | uint64_t Members) const { |
6938 | return Members <= 4; |
6939 | } |
6940 | |
6941 | bool ARMABIInfo::isEffectivelyAAPCS_VFP(unsigned callConvention, |
6942 | bool acceptHalf) const { |
6943 | |
6944 | if (callConvention != llvm::CallingConv::C) |
6945 | return (callConvention == llvm::CallingConv::ARM_AAPCS_VFP); |
6946 | else |
6947 | return (getABIKind() == AAPCS_VFP) || |
6948 | (acceptHalf && (getABIKind() == AAPCS16_VFP)); |
6949 | } |
6950 | |
6951 | Address ARMABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
6952 | QualType Ty) const { |
6953 | CharUnits SlotSize = CharUnits::fromQuantity(4); |
6954 | |
6955 | |
6956 | if (isEmptyRecord(getContext(), Ty, true)) { |
6957 | Address Addr(CGF.Builder.CreateLoad(VAListAddr), SlotSize); |
6958 | Addr = CGF.Builder.CreateElementBitCast(Addr, CGF.ConvertTypeForMem(Ty)); |
6959 | return Addr; |
6960 | } |
6961 | |
6962 | CharUnits TySize = getContext().getTypeSizeInChars(Ty); |
6963 | CharUnits TyAlignForABI = getContext().getTypeUnadjustedAlignInChars(Ty); |
6964 | |
6965 | |
6966 | bool IsIndirect = false; |
6967 | const Type *Base = nullptr; |
6968 | uint64_t Members = 0; |
6969 | if (TySize > CharUnits::fromQuantity(16) && isIllegalVectorType(Ty)) { |
6970 | IsIndirect = true; |
6971 | |
6972 | |
6973 | |
6974 | } else if (TySize > CharUnits::fromQuantity(16) && |
6975 | getABIKind() == ARMABIInfo::AAPCS16_VFP && |
6976 | !isHomogeneousAggregate(Ty, Base, Members)) { |
6977 | IsIndirect = true; |
6978 | |
6979 | |
6980 | |
6981 | |
6982 | |
6983 | } else if (getABIKind() == ARMABIInfo::AAPCS_VFP || |
6984 | getABIKind() == ARMABIInfo::AAPCS) { |
6985 | TyAlignForABI = std::max(TyAlignForABI, CharUnits::fromQuantity(4)); |
6986 | TyAlignForABI = std::min(TyAlignForABI, CharUnits::fromQuantity(8)); |
6987 | } else if (getABIKind() == ARMABIInfo::AAPCS16_VFP) { |
6988 | |
6989 | TyAlignForABI = std::max(TyAlignForABI, CharUnits::fromQuantity(4)); |
6990 | TyAlignForABI = std::min(TyAlignForABI, CharUnits::fromQuantity(16)); |
6991 | } else { |
6992 | TyAlignForABI = CharUnits::fromQuantity(4); |
6993 | } |
6994 | |
6995 | TypeInfoChars TyInfo(TySize, TyAlignForABI, AlignRequirementKind::None); |
6996 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, IsIndirect, TyInfo, |
6997 | SlotSize, true); |
6998 | } |
6999 | |
7000 | |
7001 | |
7002 | |
7003 | |
7004 | namespace { |
7005 | |
7006 | class NVPTXTargetCodeGenInfo; |
7007 | |
7008 | class NVPTXABIInfo : public ABIInfo { |
7009 | NVPTXTargetCodeGenInfo &CGInfo; |
7010 | |
7011 | public: |
7012 | NVPTXABIInfo(CodeGenTypes &CGT, NVPTXTargetCodeGenInfo &Info) |
7013 | : ABIInfo(CGT), CGInfo(Info) {} |
7014 | |
7015 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
7016 | ABIArgInfo classifyArgumentType(QualType Ty) const; |
7017 | |
7018 | void computeInfo(CGFunctionInfo &FI) const override; |
7019 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
7020 | QualType Ty) const override; |
7021 | bool isUnsupportedType(QualType T) const; |
7022 | ABIArgInfo coerceToIntArrayWithLimit(QualType Ty, unsigned MaxSize) const; |
7023 | }; |
7024 | |
7025 | class NVPTXTargetCodeGenInfo : public TargetCodeGenInfo { |
7026 | public: |
7027 | NVPTXTargetCodeGenInfo(CodeGenTypes &CGT) |
7028 | : TargetCodeGenInfo(std::make_unique<NVPTXABIInfo>(CGT, *this)) {} |
7029 | |
7030 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
7031 | CodeGen::CodeGenModule &M) const override; |
7032 | bool shouldEmitStaticExternCAliases() const override; |
7033 | |
7034 | llvm::Type *getCUDADeviceBuiltinSurfaceDeviceType() const override { |
7035 | |
7036 | |
7037 | return llvm::Type::getInt64Ty(getABIInfo().getVMContext()); |
7038 | } |
7039 | |
7040 | llvm::Type *getCUDADeviceBuiltinTextureDeviceType() const override { |
7041 | |
7042 | |
7043 | return llvm::Type::getInt64Ty(getABIInfo().getVMContext()); |
7044 | } |
7045 | |
7046 | bool emitCUDADeviceBuiltinSurfaceDeviceCopy(CodeGenFunction &CGF, LValue Dst, |
7047 | LValue Src) const override { |
7048 | emitBuiltinSurfTexDeviceCopy(CGF, Dst, Src); |
7049 | return true; |
7050 | } |
7051 | |
7052 | bool emitCUDADeviceBuiltinTextureDeviceCopy(CodeGenFunction &CGF, LValue Dst, |
7053 | LValue Src) const override { |
7054 | emitBuiltinSurfTexDeviceCopy(CGF, Dst, Src); |
7055 | return true; |
7056 | } |
7057 | |
7058 | private: |
7059 | |
7060 | |
7061 | static void addNVVMMetadata(llvm::GlobalValue *GV, StringRef Name, |
7062 | int Operand); |
7063 | |
7064 | static void emitBuiltinSurfTexDeviceCopy(CodeGenFunction &CGF, LValue Dst, |
7065 | LValue Src) { |
7066 | llvm::Value *Handle = nullptr; |
7067 | llvm::Constant *C = |
7068 | llvm::dyn_cast<llvm::Constant>(Src.getAddress(CGF).getPointer()); |
7069 | |
7070 | if (auto *ASC = llvm::dyn_cast_or_null<llvm::AddrSpaceCastOperator>(C)) |
7071 | C = llvm::cast<llvm::Constant>(ASC->getPointerOperand()); |
7072 | if (auto *GV = llvm::dyn_cast_or_null<llvm::GlobalVariable>(C)) { |
7073 | |
7074 | |
7075 | Handle = CGF.EmitRuntimeCall( |
7076 | CGF.CGM.getIntrinsic(llvm::Intrinsic::nvvm_texsurf_handle_internal, |
7077 | {GV->getType()}), |
7078 | {GV}, "texsurf_handle"); |
7079 | } else |
7080 | Handle = CGF.EmitLoadOfScalar(Src, SourceLocation()); |
7081 | CGF.EmitStoreOfScalar(Handle, Dst); |
7082 | } |
7083 | }; |
7084 | |
7085 | |
7086 | bool NVPTXABIInfo::isUnsupportedType(QualType T) const { |
7087 | ASTContext &Context = getContext(); |
7088 | if (!Context.getTargetInfo().hasFloat16Type() && T->isFloat16Type()) |
7089 | return true; |
7090 | if (!Context.getTargetInfo().hasFloat128Type() && |
7091 | (T->isFloat128Type() || |
7092 | (T->isRealFloatingType() && Context.getTypeSize(T) == 128))) |
7093 | return true; |
7094 | if (const auto *EIT = T->getAs<ExtIntType>()) |
7095 | return EIT->getNumBits() > |
7096 | (Context.getTargetInfo().hasInt128Type() ? 128U : 64U); |
7097 | if (!Context.getTargetInfo().hasInt128Type() && T->isIntegerType() && |
7098 | Context.getTypeSize(T) > 64U) |
7099 | return true; |
7100 | if (const auto *AT = T->getAsArrayTypeUnsafe()) |
7101 | return isUnsupportedType(AT->getElementType()); |
7102 | const auto *RT = T->getAs<RecordType>(); |
7103 | if (!RT) |
7104 | return false; |
7105 | const RecordDecl *RD = RT->getDecl(); |
7106 | |
7107 | |
7108 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
7109 | for (const CXXBaseSpecifier &I : CXXRD->bases()) |
7110 | if (isUnsupportedType(I.getType())) |
7111 | return true; |
7112 | |
7113 | for (const FieldDecl *I : RD->fields()) |
7114 | if (isUnsupportedType(I->getType())) |
7115 | return true; |
7116 | return false; |
7117 | } |
7118 | |
7119 | |
7120 | ABIArgInfo NVPTXABIInfo::coerceToIntArrayWithLimit(QualType Ty, |
7121 | unsigned MaxSize) const { |
7122 | |
7123 | const uint64_t Size = getContext().getTypeSize(Ty); |
7124 | const uint64_t Alignment = getContext().getTypeAlign(Ty); |
7125 | const unsigned Div = std::min<unsigned>(MaxSize, Alignment); |
7126 | llvm::Type *IntType = llvm::Type::getIntNTy(getVMContext(), Div); |
7127 | const uint64_t NumElements = (Size + Div - 1) / Div; |
7128 | return ABIArgInfo::getDirect(llvm::ArrayType::get(IntType, NumElements)); |
7129 | } |
7130 | |
7131 | ABIArgInfo NVPTXABIInfo::classifyReturnType(QualType RetTy) const { |
7132 | if (RetTy->isVoidType()) |
7133 | return ABIArgInfo::getIgnore(); |
7134 | |
7135 | if (getContext().getLangOpts().OpenMP && |
7136 | getContext().getLangOpts().OpenMPIsDevice && isUnsupportedType(RetTy)) |
7137 | return coerceToIntArrayWithLimit(RetTy, 64); |
7138 | |
7139 | |
7140 | if (!RetTy->isScalarType()) |
7141 | return ABIArgInfo::getDirect(); |
7142 | |
7143 | |
7144 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
7145 | RetTy = EnumTy->getDecl()->getIntegerType(); |
7146 | |
7147 | return (isPromotableIntegerTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
7148 | : ABIArgInfo::getDirect()); |
7149 | } |
7150 | |
7151 | ABIArgInfo NVPTXABIInfo::classifyArgumentType(QualType Ty) const { |
7152 | |
7153 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
7154 | Ty = EnumTy->getDecl()->getIntegerType(); |
7155 | |
7156 | |
7157 | if (isAggregateTypeForABI(Ty)) { |
7158 | |
7159 | |
7160 | if (getContext().getLangOpts().CUDAIsDevice) { |
7161 | if (Ty->isCUDADeviceBuiltinSurfaceType()) |
7162 | return ABIArgInfo::getDirect( |
7163 | CGInfo.getCUDADeviceBuiltinSurfaceDeviceType()); |
7164 | if (Ty->isCUDADeviceBuiltinTextureType()) |
7165 | return ABIArgInfo::getDirect( |
7166 | CGInfo.getCUDADeviceBuiltinTextureDeviceType()); |
7167 | } |
7168 | return getNaturalAlignIndirect(Ty, true); |
7169 | } |
7170 | |
7171 | if (const auto *EIT = Ty->getAs<ExtIntType>()) { |
7172 | if ((EIT->getNumBits() > 128) || |
7173 | (!getContext().getTargetInfo().hasInt128Type() && |
7174 | EIT->getNumBits() > 64)) |
7175 | return getNaturalAlignIndirect(Ty, true); |
7176 | } |
7177 | |
7178 | return (isPromotableIntegerTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
7179 | : ABIArgInfo::getDirect()); |
7180 | } |
7181 | |
7182 | void NVPTXABIInfo::computeInfo(CGFunctionInfo &FI) const { |
7183 | if (!getCXXABI().classifyReturnType(FI)) |
7184 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
7185 | for (auto &I : FI.arguments()) |
7186 | I.info = classifyArgumentType(I.type); |
7187 | |
7188 | |
7189 | if (FI.getCallingConvention() != llvm::CallingConv::C) |
7190 | return; |
7191 | |
7192 | FI.setEffectiveCallingConvention(getRuntimeCC()); |
7193 | } |
7194 | |
7195 | Address NVPTXABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
7196 | QualType Ty) const { |
7197 | llvm_unreachable("NVPTX does not support varargs"); |
7198 | } |
7199 | |
7200 | void NVPTXTargetCodeGenInfo::setTargetAttributes( |
7201 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const { |
7202 | if (GV->isDeclaration()) |
7203 | return; |
7204 | const VarDecl *VD = dyn_cast_or_null<VarDecl>(D); |
7205 | if (VD) { |
7206 | if (M.getLangOpts().CUDA) { |
7207 | if (VD->getType()->isCUDADeviceBuiltinSurfaceType()) |
7208 | addNVVMMetadata(GV, "surface", 1); |
7209 | else if (VD->getType()->isCUDADeviceBuiltinTextureType()) |
7210 | addNVVMMetadata(GV, "texture", 1); |
7211 | return; |
7212 | } |
7213 | } |
7214 | |
7215 | const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); |
7216 | if (!FD) return; |
7217 | |
7218 | llvm::Function *F = cast<llvm::Function>(GV); |
7219 | |
7220 | |
7221 | if (M.getLangOpts().OpenCL) { |
7222 | |
7223 | |
7224 | if (FD->hasAttr<OpenCLKernelAttr>()) { |
7225 | |
7226 | |
7227 | addNVVMMetadata(F, "kernel", 1); |
7228 | |
7229 | F->addFnAttr(llvm::Attribute::NoInline); |
7230 | } |
7231 | } |
7232 | |
7233 | |
7234 | if (M.getLangOpts().CUDA) { |
7235 | |
7236 | |
7237 | |
7238 | if (FD->hasAttr<CUDAGlobalAttr>()) { |
7239 | |
7240 | addNVVMMetadata(F, "kernel", 1); |
7241 | } |
7242 | if (CUDALaunchBoundsAttr *Attr = FD->getAttr<CUDALaunchBoundsAttr>()) { |
7243 | |
7244 | llvm::APSInt MaxThreads(32); |
7245 | MaxThreads = Attr->getMaxThreads()->EvaluateKnownConstInt(M.getContext()); |
7246 | if (MaxThreads > 0) |
7247 | addNVVMMetadata(F, "maxntidx", MaxThreads.getExtValue()); |
7248 | |
7249 | |
7250 | |
7251 | |
7252 | if (Attr->getMinBlocks()) { |
7253 | llvm::APSInt MinBlocks(32); |
7254 | MinBlocks = Attr->getMinBlocks()->EvaluateKnownConstInt(M.getContext()); |
7255 | if (MinBlocks > 0) |
7256 | |
7257 | addNVVMMetadata(F, "minctasm", MinBlocks.getExtValue()); |
7258 | } |
7259 | } |
7260 | } |
7261 | } |
7262 | |
7263 | void NVPTXTargetCodeGenInfo::addNVVMMetadata(llvm::GlobalValue *GV, |
7264 | StringRef Name, int Operand) { |
7265 | llvm::Module *M = GV->getParent(); |
7266 | llvm::LLVMContext &Ctx = M->getContext(); |
7267 | |
7268 | |
7269 | llvm::NamedMDNode *MD = M->getOrInsertNamedMetadata("nvvm.annotations"); |
7270 | |
7271 | llvm::Metadata *MDVals[] = { |
7272 | llvm::ConstantAsMetadata::get(GV), llvm::MDString::get(Ctx, Name), |
7273 | llvm::ConstantAsMetadata::get( |
7274 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(Ctx), Operand))}; |
7275 | |
7276 | MD->addOperand(llvm::MDNode::get(Ctx, MDVals)); |
7277 | } |
7278 | |
7279 | bool NVPTXTargetCodeGenInfo::shouldEmitStaticExternCAliases() const { |
7280 | return false; |
7281 | } |
7282 | } |
7283 | |
7284 | |
7285 | |
7286 | |
7287 | |
7288 | namespace { |
7289 | |
7290 | class SystemZABIInfo : public SwiftABIInfo { |
7291 | bool HasVector; |
7292 | bool IsSoftFloatABI; |
7293 | |
7294 | public: |
7295 | SystemZABIInfo(CodeGenTypes &CGT, bool HV, bool SF) |
7296 | : SwiftABIInfo(CGT), HasVector(HV), IsSoftFloatABI(SF) {} |
7297 | |
7298 | bool isPromotableIntegerTypeForABI(QualType Ty) const; |
7299 | bool isCompoundType(QualType Ty) const; |
7300 | bool isVectorArgumentType(QualType Ty) const; |
7301 | bool isFPArgumentType(QualType Ty) const; |
7302 | QualType GetSingleElementType(QualType Ty) const; |
7303 | |
7304 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
7305 | ABIArgInfo classifyArgumentType(QualType ArgTy) const; |
7306 | |
7307 | void computeInfo(CGFunctionInfo &FI) const override { |
7308 | if (!getCXXABI().classifyReturnType(FI)) |
7309 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
7310 | for (auto &I : FI.arguments()) |
7311 | I.info = classifyArgumentType(I.type); |
7312 | } |
7313 | |
7314 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
7315 | QualType Ty) const override; |
7316 | |
7317 | bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars, |
7318 | bool asReturnValue) const override { |
7319 | return occupiesMoreThan(CGT, scalars, 4); |
7320 | } |
7321 | bool isSwiftErrorInRegister() const override { |
7322 | return false; |
7323 | } |
7324 | }; |
7325 | |
7326 | class SystemZTargetCodeGenInfo : public TargetCodeGenInfo { |
7327 | public: |
7328 | SystemZTargetCodeGenInfo(CodeGenTypes &CGT, bool HasVector, bool SoftFloatABI) |
7329 | : TargetCodeGenInfo( |
7330 | std::make_unique<SystemZABIInfo>(CGT, HasVector, SoftFloatABI)) {} |
7331 | |
7332 | llvm::Value *testFPKind(llvm::Value *V, unsigned BuiltinID, |
7333 | CGBuilderTy &Builder, |
7334 | CodeGenModule &CGM) const override { |
7335 | assert(V->getType()->isFloatingPointTy() && "V should have an FP type."); |
7336 | |
7337 | if (!Builder.getIsFPConstrained()) |
7338 | return nullptr; |
7339 | |
7340 | llvm::Type *Ty = V->getType(); |
7341 | if (Ty->isFloatTy() || Ty->isDoubleTy() || Ty->isFP128Ty()) { |
7342 | llvm::Module &M = CGM.getModule(); |
7343 | auto &Ctx = M.getContext(); |
7344 | llvm::Function *TDCFunc = |
7345 | llvm::Intrinsic::getDeclaration(&M, llvm::Intrinsic::s390_tdc, Ty); |
7346 | unsigned TDCBits = 0; |
7347 | switch (BuiltinID) { |
7348 | case Builtin::BI__builtin_isnan: |
7349 | TDCBits = 0xf; |
7350 | break; |
7351 | case Builtin::BIfinite: |
7352 | case Builtin::BI__finite: |
7353 | case Builtin::BIfinitef: |
7354 | case Builtin::BI__finitef: |
7355 | case Builtin::BIfinitel: |
7356 | case Builtin::BI__finitel: |
7357 | case Builtin::BI__builtin_isfinite: |
7358 | TDCBits = 0xfc0; |
7359 | break; |
7360 | case Builtin::BI__builtin_isinf: |
7361 | TDCBits = 0x30; |
7362 | break; |
7363 | default: |
7364 | break; |
7365 | } |
7366 | if (TDCBits) |
7367 | return Builder.CreateCall( |
7368 | TDCFunc, |
7369 | {V, llvm::ConstantInt::get(llvm::Type::getInt64Ty(Ctx), TDCBits)}); |
7370 | } |
7371 | return nullptr; |
7372 | } |
7373 | }; |
7374 | } |
7375 | |
7376 | bool SystemZABIInfo::isPromotableIntegerTypeForABI(QualType Ty) const { |
7377 | |
7378 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
7379 | Ty = EnumTy->getDecl()->getIntegerType(); |
7380 | |
7381 | |
7382 | if (ABIInfo::isPromotableIntegerTypeForABI(Ty)) |
7383 | return true; |
7384 | |
7385 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
7386 | if (EIT->getNumBits() < 64) |
7387 | return true; |
7388 | |
7389 | |
7390 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) |
7391 | switch (BT->getKind()) { |
7392 | case BuiltinType::Int: |
7393 | case BuiltinType::UInt: |
7394 | return true; |
7395 | default: |
7396 | return false; |
7397 | } |
7398 | return false; |
7399 | } |
7400 | |
7401 | bool SystemZABIInfo::isCompoundType(QualType Ty) const { |
7402 | return (Ty->isAnyComplexType() || |
7403 | Ty->isVectorType() || |
7404 | isAggregateTypeForABI(Ty)); |
7405 | } |
7406 | |
7407 | bool SystemZABIInfo::isVectorArgumentType(QualType Ty) const { |
7408 | return (HasVector && |
7409 | Ty->isVectorType() && |
7410 | getContext().getTypeSize(Ty) <= 128); |
7411 | } |
7412 | |
7413 | bool SystemZABIInfo::isFPArgumentType(QualType Ty) const { |
7414 | if (IsSoftFloatABI) |
7415 | return false; |
7416 | |
7417 | if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) |
7418 | switch (BT->getKind()) { |
7419 | case BuiltinType::Float: |
7420 | case BuiltinType::Double: |
7421 | return true; |
7422 | default: |
7423 | return false; |
7424 | } |
7425 | |
7426 | return false; |
7427 | } |
7428 | |
7429 | QualType SystemZABIInfo::GetSingleElementType(QualType Ty) const { |
7430 | const RecordType *RT = Ty->getAs<RecordType>(); |
7431 | |
7432 | if (RT && RT->isStructureOrClassType()) { |
7433 | const RecordDecl *RD = RT->getDecl(); |
7434 | QualType Found; |
7435 | |
7436 | |
7437 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
7438 | for (const auto &I : CXXRD->bases()) { |
7439 | QualType Base = I.getType(); |
7440 | |
7441 | |
7442 | if (isEmptyRecord(getContext(), Base, true)) |
7443 | continue; |
7444 | |
7445 | if (!Found.isNull()) |
7446 | return Ty; |
7447 | Found = GetSingleElementType(Base); |
7448 | } |
7449 | |
7450 | |
7451 | for (const auto *FD : RD->fields()) { |
7452 | |
7453 | |
7454 | |
7455 | if (getContext().getLangOpts().CPlusPlus && |
7456 | FD->isZeroLengthBitField(getContext())) |
7457 | continue; |
7458 | |
7459 | if (FD->hasAttr<NoUniqueAddressAttr>() && |
7460 | isEmptyRecord(getContext(), FD->getType(), true)) |
7461 | continue; |
7462 | |
7463 | |
7464 | |
7465 | if (!Found.isNull()) |
7466 | return Ty; |
7467 | Found = GetSingleElementType(FD->getType()); |
7468 | } |
7469 | |
7470 | |
7471 | |
7472 | if (!Found.isNull()) |
7473 | return Found; |
7474 | } |
7475 | |
7476 | return Ty; |
7477 | } |
7478 | |
7479 | Address SystemZABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
7480 | QualType Ty) const { |
7481 | |
7482 | |
7483 | |
7484 | |
7485 | |
7486 | |
7487 | |
7488 | |
7489 | |
7490 | |
7491 | |
7492 | Ty = getContext().getCanonicalType(Ty); |
7493 | auto TyInfo = getContext().getTypeInfoInChars(Ty); |
7494 | llvm::Type *ArgTy = CGF.ConvertTypeForMem(Ty); |
7495 | llvm::Type *DirectTy = ArgTy; |
7496 | ABIArgInfo AI = classifyArgumentType(Ty); |
7497 | bool IsIndirect = AI.isIndirect(); |
7498 | bool InFPRs = false; |
7499 | bool IsVector = false; |
7500 | CharUnits UnpaddedSize; |
7501 | CharUnits DirectAlign; |
7502 | if (IsIndirect) { |
7503 | DirectTy = llvm::PointerType::getUnqual(DirectTy); |
7504 | UnpaddedSize = DirectAlign = CharUnits::fromQuantity(8); |
7505 | } else { |
7506 | if (AI.getCoerceToType()) |
7507 | ArgTy = AI.getCoerceToType(); |
7508 | InFPRs = (!IsSoftFloatABI && (ArgTy->isFloatTy() || ArgTy->isDoubleTy())); |
7509 | IsVector = ArgTy->isVectorTy(); |
7510 | UnpaddedSize = TyInfo.Width; |
7511 | DirectAlign = TyInfo.Align; |
7512 | } |
7513 | CharUnits PaddedSize = CharUnits::fromQuantity(8); |
7514 | if (IsVector && UnpaddedSize > PaddedSize) |
7515 | PaddedSize = CharUnits::fromQuantity(16); |
7516 | assert((UnpaddedSize <= PaddedSize) && "Invalid argument size."); |
7517 | |
7518 | CharUnits Padding = (PaddedSize - UnpaddedSize); |
7519 | |
7520 | llvm::Type *IndexTy = CGF.Int64Ty; |
7521 | llvm::Value *PaddedSizeV = |
7522 | llvm::ConstantInt::get(IndexTy, PaddedSize.getQuantity()); |
7523 | |
7524 | if (IsVector) { |
7525 | |
7526 | |
7527 | |
7528 | Address OverflowArgAreaPtr = |
7529 | CGF.Builder.CreateStructGEP(VAListAddr, 2, "overflow_arg_area_ptr"); |
7530 | Address OverflowArgArea = |
7531 | Address(CGF.Builder.CreateLoad(OverflowArgAreaPtr, "overflow_arg_area"), |
7532 | TyInfo.Align); |
7533 | Address MemAddr = |
7534 | CGF.Builder.CreateElementBitCast(OverflowArgArea, DirectTy, "mem_addr"); |
7535 | |
7536 | |
7537 | llvm::Value *NewOverflowArgArea = |
7538 | CGF.Builder.CreateGEP(OverflowArgArea.getElementType(), |
7539 | OverflowArgArea.getPointer(), PaddedSizeV, |
7540 | "overflow_arg_area"); |
7541 | CGF.Builder.CreateStore(NewOverflowArgArea, OverflowArgAreaPtr); |
7542 | |
7543 | return MemAddr; |
7544 | } |
7545 | |
7546 | assert(PaddedSize.getQuantity() == 8); |
7547 | |
7548 | unsigned MaxRegs, RegCountField, RegSaveIndex; |
7549 | CharUnits RegPadding; |
7550 | if (InFPRs) { |
7551 | MaxRegs = 4; |
7552 | RegCountField = 1; |
7553 | RegSaveIndex = 16; |
7554 | RegPadding = CharUnits(); |
7555 | } else { |
7556 | MaxRegs = 5; |
7557 | RegCountField = 0; |
7558 | RegSaveIndex = 2; |
7559 | RegPadding = Padding; |
7560 | } |
7561 | |
7562 | Address RegCountPtr = |
7563 | CGF.Builder.CreateStructGEP(VAListAddr, RegCountField, "reg_count_ptr"); |
7564 | llvm::Value *RegCount = CGF.Builder.CreateLoad(RegCountPtr, "reg_count"); |
7565 | llvm::Value *MaxRegsV = llvm::ConstantInt::get(IndexTy, MaxRegs); |
7566 | llvm::Value *InRegs = CGF.Builder.CreateICmpULT(RegCount, MaxRegsV, |
7567 | "fits_in_regs"); |
7568 | |
7569 | llvm::BasicBlock *InRegBlock = CGF.createBasicBlock("vaarg.in_reg"); |
7570 | llvm::BasicBlock *InMemBlock = CGF.createBasicBlock("vaarg.in_mem"); |
7571 | llvm::BasicBlock *ContBlock = CGF.createBasicBlock("vaarg.end"); |
7572 | CGF.Builder.CreateCondBr(InRegs, InRegBlock, InMemBlock); |
7573 | |
7574 | |
7575 | CGF.EmitBlock(InRegBlock); |
7576 | |
7577 | |
7578 | llvm::Value *ScaledRegCount = |
7579 | CGF.Builder.CreateMul(RegCount, PaddedSizeV, "scaled_reg_count"); |
7580 | llvm::Value *RegBase = |
7581 | llvm::ConstantInt::get(IndexTy, RegSaveIndex * PaddedSize.getQuantity() |
7582 | + RegPadding.getQuantity()); |
7583 | llvm::Value *RegOffset = |
7584 | CGF.Builder.CreateAdd(ScaledRegCount, RegBase, "reg_offset"); |
7585 | Address RegSaveAreaPtr = |
7586 | CGF.Builder.CreateStructGEP(VAListAddr, 3, "reg_save_area_ptr"); |
7587 | llvm::Value *RegSaveArea = |
7588 | CGF.Builder.CreateLoad(RegSaveAreaPtr, "reg_save_area"); |
7589 | Address RawRegAddr(CGF.Builder.CreateGEP(CGF.Int8Ty, RegSaveArea, RegOffset, |
7590 | "raw_reg_addr"), |
7591 | PaddedSize); |
7592 | Address RegAddr = |
7593 | CGF.Builder.CreateElementBitCast(RawRegAddr, DirectTy, "reg_addr"); |
7594 | |
7595 | |
7596 | llvm::Value *One = llvm::ConstantInt::get(IndexTy, 1); |
7597 | llvm::Value *NewRegCount = |
7598 | CGF.Builder.CreateAdd(RegCount, One, "reg_count"); |
7599 | CGF.Builder.CreateStore(NewRegCount, RegCountPtr); |
7600 | CGF.EmitBranch(ContBlock); |
7601 | |
7602 | |
7603 | CGF.EmitBlock(InMemBlock); |
7604 | |
7605 | |
7606 | Address OverflowArgAreaPtr = |
7607 | CGF.Builder.CreateStructGEP(VAListAddr, 2, "overflow_arg_area_ptr"); |
7608 | Address OverflowArgArea = |
7609 | Address(CGF.Builder.CreateLoad(OverflowArgAreaPtr, "overflow_arg_area"), |
7610 | PaddedSize); |
7611 | Address RawMemAddr = |
7612 | CGF.Builder.CreateConstByteGEP(OverflowArgArea, Padding, "raw_mem_addr"); |
7613 | Address MemAddr = |
7614 | CGF.Builder.CreateElementBitCast(RawMemAddr, DirectTy, "mem_addr"); |
7615 | |
7616 | |
7617 | llvm::Value *NewOverflowArgArea = |
7618 | CGF.Builder.CreateGEP(OverflowArgArea.getElementType(), |
7619 | OverflowArgArea.getPointer(), PaddedSizeV, |
7620 | "overflow_arg_area"); |
7621 | CGF.Builder.CreateStore(NewOverflowArgArea, OverflowArgAreaPtr); |
7622 | CGF.EmitBranch(ContBlock); |
7623 | |
7624 | |
7625 | CGF.EmitBlock(ContBlock); |
7626 | Address ResAddr = emitMergePHI(CGF, RegAddr, InRegBlock, |
7627 | MemAddr, InMemBlock, "va_arg.addr"); |
7628 | |
7629 | if (IsIndirect) |
7630 | ResAddr = Address(CGF.Builder.CreateLoad(ResAddr, "indirect_arg"), |
7631 | TyInfo.Align); |
7632 | |
7633 | return ResAddr; |
7634 | } |
7635 | |
7636 | ABIArgInfo SystemZABIInfo::classifyReturnType(QualType RetTy) const { |
7637 | if (RetTy->isVoidType()) |
7638 | return ABIArgInfo::getIgnore(); |
7639 | if (isVectorArgumentType(RetTy)) |
7640 | return ABIArgInfo::getDirect(); |
7641 | if (isCompoundType(RetTy) || getContext().getTypeSize(RetTy) > 64) |
7642 | return getNaturalAlignIndirect(RetTy); |
7643 | return (isPromotableIntegerTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
7644 | : ABIArgInfo::getDirect()); |
7645 | } |
7646 | |
7647 | ABIArgInfo SystemZABIInfo::classifyArgumentType(QualType Ty) const { |
7648 | |
7649 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
7650 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
7651 | |
7652 | |
7653 | if (isPromotableIntegerTypeForABI(Ty)) |
7654 | return ABIArgInfo::getExtend(Ty); |
7655 | |
7656 | |
7657 | |
7658 | |
7659 | uint64_t Size = getContext().getTypeSize(Ty); |
7660 | QualType SingleElementTy = GetSingleElementType(Ty); |
7661 | if (isVectorArgumentType(SingleElementTy) && |
7662 | getContext().getTypeSize(SingleElementTy) == Size) |
7663 | return ABIArgInfo::getDirect(CGT.ConvertType(SingleElementTy)); |
7664 | |
7665 | |
7666 | if (Size != 8 && Size != 16 && Size != 32 && Size != 64) |
7667 | return getNaturalAlignIndirect(Ty, false); |
7668 | |
7669 | |
7670 | if (const RecordType *RT = Ty->getAs<RecordType>()) { |
7671 | |
7672 | |
7673 | const RecordDecl *RD = RT->getDecl(); |
7674 | if (RD->hasFlexibleArrayMember()) |
7675 | return getNaturalAlignIndirect(Ty, false); |
7676 | |
7677 | |
7678 | llvm::Type *PassTy; |
7679 | if (isFPArgumentType(SingleElementTy)) { |
7680 | assert(Size == 32 || Size == 64); |
7681 | if (Size == 32) |
7682 | PassTy = llvm::Type::getFloatTy(getVMContext()); |
7683 | else |
7684 | PassTy = llvm::Type::getDoubleTy(getVMContext()); |
7685 | } else |
7686 | PassTy = llvm::IntegerType::get(getVMContext(), Size); |
7687 | return ABIArgInfo::getDirect(PassTy); |
7688 | } |
7689 | |
7690 | |
7691 | if (isCompoundType(Ty)) |
7692 | return getNaturalAlignIndirect(Ty, false); |
7693 | |
7694 | return ABIArgInfo::getDirect(nullptr); |
7695 | } |
7696 | |
7697 | |
7698 | |
7699 | |
7700 | |
7701 | namespace { |
7702 | |
7703 | class MSP430ABIInfo : public DefaultABIInfo { |
7704 | static ABIArgInfo complexArgInfo() { |
7705 | ABIArgInfo Info = ABIArgInfo::getDirect(); |
7706 | Info.setCanBeFlattened(false); |
7707 | return Info; |
7708 | } |
7709 | |
7710 | public: |
7711 | MSP430ABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
7712 | |
7713 | ABIArgInfo classifyReturnType(QualType RetTy) const { |
7714 | if (RetTy->isAnyComplexType()) |
7715 | return complexArgInfo(); |
7716 | |
7717 | return DefaultABIInfo::classifyReturnType(RetTy); |
7718 | } |
7719 | |
7720 | ABIArgInfo classifyArgumentType(QualType RetTy) const { |
7721 | if (RetTy->isAnyComplexType()) |
7722 | return complexArgInfo(); |
7723 | |
7724 | return DefaultABIInfo::classifyArgumentType(RetTy); |
7725 | } |
7726 | |
7727 | |
7728 | |
7729 | void computeInfo(CGFunctionInfo &FI) const override { |
7730 | if (!getCXXABI().classifyReturnType(FI)) |
7731 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
7732 | for (auto &I : FI.arguments()) |
7733 | I.info = classifyArgumentType(I.type); |
7734 | } |
7735 | |
7736 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
7737 | QualType Ty) const override { |
7738 | return EmitVAArgInstr(CGF, VAListAddr, Ty, classifyArgumentType(Ty)); |
7739 | } |
7740 | }; |
7741 | |
7742 | class MSP430TargetCodeGenInfo : public TargetCodeGenInfo { |
7743 | public: |
7744 | MSP430TargetCodeGenInfo(CodeGenTypes &CGT) |
7745 | : TargetCodeGenInfo(std::make_unique<MSP430ABIInfo>(CGT)) {} |
7746 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
7747 | CodeGen::CodeGenModule &M) const override; |
7748 | }; |
7749 | |
7750 | } |
7751 | |
7752 | void MSP430TargetCodeGenInfo::setTargetAttributes( |
7753 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const { |
7754 | if (GV->isDeclaration()) |
7755 | return; |
7756 | if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { |
7757 | const auto *InterruptAttr = FD->getAttr<MSP430InterruptAttr>(); |
7758 | if (!InterruptAttr) |
7759 | return; |
7760 | |
7761 | |
7762 | llvm::Function *F = cast<llvm::Function>(GV); |
7763 | |
7764 | |
7765 | F->setCallingConv(llvm::CallingConv::MSP430_INTR); |
7766 | |
7767 | |
7768 | F->addFnAttr(llvm::Attribute::NoInline); |
7769 | F->addFnAttr("interrupt", llvm::utostr(InterruptAttr->getNumber())); |
7770 | } |
7771 | } |
7772 | |
7773 | |
7774 | |
7775 | |
7776 | |
7777 | |
7778 | namespace { |
7779 | class MipsABIInfo : public ABIInfo { |
7780 | bool IsO32; |
7781 | unsigned MinABIStackAlignInBytes, StackAlignInBytes; |
7782 | void CoerceToIntArgs(uint64_t TySize, |
7783 | SmallVectorImpl<llvm::Type *> &ArgList) const; |
7784 | llvm::Type* HandleAggregates(QualType Ty, uint64_t TySize) const; |
7785 | llvm::Type* returnAggregateInRegs(QualType RetTy, uint64_t Size) const; |
7786 | llvm::Type* getPaddingType(uint64_t Align, uint64_t Offset) const; |
7787 | public: |
7788 | MipsABIInfo(CodeGenTypes &CGT, bool _IsO32) : |
7789 | ABIInfo(CGT), IsO32(_IsO32), MinABIStackAlignInBytes(IsO32 ? 4 : 8), |
7790 | StackAlignInBytes(IsO32 ? 8 : 16) {} |
7791 | |
7792 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
7793 | ABIArgInfo classifyArgumentType(QualType RetTy, uint64_t &Offset) const; |
7794 | void computeInfo(CGFunctionInfo &FI) const override; |
7795 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
7796 | QualType Ty) const override; |
7797 | ABIArgInfo extendType(QualType Ty) const; |
7798 | }; |
7799 | |
7800 | class MIPSTargetCodeGenInfo : public TargetCodeGenInfo { |
7801 | unsigned SizeOfUnwindException; |
7802 | public: |
7803 | MIPSTargetCodeGenInfo(CodeGenTypes &CGT, bool IsO32) |
7804 | : TargetCodeGenInfo(std::make_unique<MipsABIInfo>(CGT, IsO32)), |
7805 | SizeOfUnwindException(IsO32 ? 24 : 32) {} |
7806 | |
7807 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &CGM) const override { |
7808 | return 29; |
7809 | } |
7810 | |
7811 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
7812 | CodeGen::CodeGenModule &CGM) const override { |
7813 | const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); |
7814 | if (!FD) return; |
7815 | llvm::Function *Fn = cast<llvm::Function>(GV); |
7816 | |
7817 | if (FD->hasAttr<MipsLongCallAttr>()) |
7818 | Fn->addFnAttr("long-call"); |
7819 | else if (FD->hasAttr<MipsShortCallAttr>()) |
7820 | Fn->addFnAttr("short-call"); |
7821 | |
7822 | |
7823 | if (GV->isDeclaration()) |
7824 | return; |
7825 | |
7826 | if (FD->hasAttr<Mips16Attr>()) { |
7827 | Fn->addFnAttr("mips16"); |
7828 | } |
7829 | else if (FD->hasAttr<NoMips16Attr>()) { |
7830 | Fn->addFnAttr("nomips16"); |
7831 | } |
7832 | |
7833 | if (FD->hasAttr<MicroMipsAttr>()) |
7834 | Fn->addFnAttr("micromips"); |
7835 | else if (FD->hasAttr<NoMicroMipsAttr>()) |
7836 | Fn->addFnAttr("nomicromips"); |
7837 | |
7838 | const MipsInterruptAttr *Attr = FD->getAttr<MipsInterruptAttr>(); |
7839 | if (!Attr) |
7840 | return; |
7841 | |
7842 | const char *Kind; |
7843 | switch (Attr->getInterrupt()) { |
7844 | case MipsInterruptAttr::eic: Kind = "eic"; break; |
7845 | case MipsInterruptAttr::sw0: Kind = "sw0"; break; |
7846 | case MipsInterruptAttr::sw1: Kind = "sw1"; break; |
7847 | case MipsInterruptAttr::hw0: Kind = "hw0"; break; |
7848 | case MipsInterruptAttr::hw1: Kind = "hw1"; break; |
7849 | case MipsInterruptAttr::hw2: Kind = "hw2"; break; |
7850 | case MipsInterruptAttr::hw3: Kind = "hw3"; break; |
7851 | case MipsInterruptAttr::hw4: Kind = "hw4"; break; |
7852 | case MipsInterruptAttr::hw5: Kind = "hw5"; break; |
7853 | } |
7854 | |
7855 | Fn->addFnAttr("interrupt", Kind); |
7856 | |
7857 | } |
7858 | |
7859 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
7860 | llvm::Value *Address) const override; |
7861 | |
7862 | unsigned getSizeOfUnwindException() const override { |
7863 | return SizeOfUnwindException; |
7864 | } |
7865 | }; |
7866 | } |
7867 | |
7868 | void MipsABIInfo::CoerceToIntArgs( |
7869 | uint64_t TySize, SmallVectorImpl<llvm::Type *> &ArgList) const { |
7870 | llvm::IntegerType *IntTy = |
7871 | llvm::IntegerType::get(getVMContext(), MinABIStackAlignInBytes * 8); |
7872 | |
7873 | |
7874 | for (unsigned N = TySize / (MinABIStackAlignInBytes * 8); N; --N) |
7875 | ArgList.push_back(IntTy); |
7876 | |
7877 | |
7878 | unsigned R = TySize % (MinABIStackAlignInBytes * 8); |
7879 | |
7880 | if (R) |
7881 | ArgList.push_back(llvm::IntegerType::get(getVMContext(), R)); |
7882 | } |
7883 | |
7884 | |
7885 | |
7886 | llvm::Type* MipsABIInfo::HandleAggregates(QualType Ty, uint64_t TySize) const { |
7887 | SmallVector<llvm::Type*, 8> ArgList, IntArgList; |
7888 | |
7889 | if (IsO32) { |
7890 | CoerceToIntArgs(TySize, ArgList); |
7891 | return llvm::StructType::get(getVMContext(), ArgList); |
7892 | } |
7893 | |
7894 | if (Ty->isComplexType()) |
7895 | return CGT.ConvertType(Ty); |
7896 | |
7897 | const RecordType *RT = Ty->getAs<RecordType>(); |
7898 | |
7899 | |
7900 | if (!RT || !RT->isStructureOrClassType()) { |
7901 | CoerceToIntArgs(TySize, ArgList); |
7902 | return llvm::StructType::get(getVMContext(), ArgList); |
7903 | } |
7904 | |
7905 | const RecordDecl *RD = RT->getDecl(); |
7906 | const ASTRecordLayout &Layout = getContext().getASTRecordLayout(RD); |
7907 | assert(!(TySize % 8) && "Size of structure must be multiple of 8."); |
7908 | |
7909 | uint64_t LastOffset = 0; |
7910 | unsigned idx = 0; |
7911 | llvm::IntegerType *I64 = llvm::IntegerType::get(getVMContext(), 64); |
7912 | |
7913 | |
7914 | |
7915 | for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end(); |
7916 | i != e; ++i, ++idx) { |
7917 | const QualType Ty = i->getType(); |
7918 | const BuiltinType *BT = Ty->getAs<BuiltinType>(); |
7919 | |
7920 | if (!BT || BT->getKind() != BuiltinType::Double) |
7921 | continue; |
7922 | |
7923 | uint64_t Offset = Layout.getFieldOffset(idx); |
7924 | if (Offset % 64) |
7925 | continue; |
7926 | |
7927 | |
7928 | for (unsigned j = (Offset - LastOffset) / 64; j > 0; --j) |
7929 | ArgList.push_back(I64); |
7930 | |
7931 | |
7932 | ArgList.push_back(llvm::Type::getDoubleTy(getVMContext())); |
7933 | LastOffset = Offset + 64; |
7934 | } |
7935 | |
7936 | CoerceToIntArgs(TySize - LastOffset, IntArgList); |
7937 | ArgList.append(IntArgList.begin(), IntArgList.end()); |
7938 | |
7939 | return llvm::StructType::get(getVMContext(), ArgList); |
7940 | } |
7941 | |
7942 | llvm::Type *MipsABIInfo::getPaddingType(uint64_t OrigOffset, |
7943 | uint64_t Offset) const { |
7944 | if (OrigOffset + MinABIStackAlignInBytes > Offset) |
7945 | return nullptr; |
7946 | |
7947 | return llvm::IntegerType::get(getVMContext(), (Offset - OrigOffset) * 8); |
7948 | } |
7949 | |
7950 | ABIArgInfo |
7951 | MipsABIInfo::classifyArgumentType(QualType Ty, uint64_t &Offset) const { |
7952 | Ty = useFirstFieldIfTransparentUnion(Ty); |
7953 | |
7954 | uint64_t OrigOffset = Offset; |
7955 | uint64_t TySize = getContext().getTypeSize(Ty); |
7956 | uint64_t Align = getContext().getTypeAlign(Ty) / 8; |
7957 | |
7958 | Align = std::min(std::max(Align, (uint64_t)MinABIStackAlignInBytes), |
7959 | (uint64_t)StackAlignInBytes); |
7960 | unsigned CurrOffset = llvm::alignTo(Offset, Align); |
7961 | Offset = CurrOffset + llvm::alignTo(TySize, Align * 8) / 8; |
7962 | |
7963 | if (isAggregateTypeForABI(Ty) || Ty->isVectorType()) { |
7964 | |
7965 | if (TySize == 0) |
7966 | return ABIArgInfo::getIgnore(); |
7967 | |
7968 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) { |
7969 | Offset = OrigOffset + MinABIStackAlignInBytes; |
7970 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
7971 | } |
7972 | |
7973 | |
7974 | |
7975 | |
7976 | ABIArgInfo ArgInfo = |
7977 | ABIArgInfo::getDirect(HandleAggregates(Ty, TySize), 0, |
7978 | getPaddingType(OrigOffset, CurrOffset)); |
7979 | ArgInfo.setInReg(true); |
7980 | return ArgInfo; |
7981 | } |
7982 | |
7983 | |
7984 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
7985 | Ty = EnumTy->getDecl()->getIntegerType(); |
7986 | |
7987 | |
7988 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
7989 | if (EIT->getNumBits() > 128 || |
7990 | (EIT->getNumBits() > 64 && |
7991 | !getContext().getTargetInfo().hasInt128Type())) |
7992 | return getNaturalAlignIndirect(Ty); |
7993 | |
7994 | |
7995 | if (Ty->isIntegralOrEnumerationType()) |
7996 | return extendType(Ty); |
7997 | |
7998 | return ABIArgInfo::getDirect( |
7999 | nullptr, 0, IsO32 ? nullptr : getPaddingType(OrigOffset, CurrOffset)); |
8000 | } |
8001 | |
8002 | llvm::Type* |
8003 | MipsABIInfo::returnAggregateInRegs(QualType RetTy, uint64_t Size) const { |
8004 | const RecordType *RT = RetTy->getAs<RecordType>(); |
8005 | SmallVector<llvm::Type*, 8> RTList; |
8006 | |
8007 | if (RT && RT->isStructureOrClassType()) { |
8008 | const RecordDecl *RD = RT->getDecl(); |
8009 | const ASTRecordLayout &Layout = getContext().getASTRecordLayout(RD); |
8010 | unsigned FieldCnt = Layout.getFieldCount(); |
8011 | |
8012 | |
8013 | |
8014 | |
8015 | |
8016 | |
8017 | |
8018 | |
8019 | |
8020 | |
8021 | if (FieldCnt && (FieldCnt <= 2) && !Layout.getFieldOffset(0)) { |
8022 | RecordDecl::field_iterator b = RD->field_begin(), e = RD->field_end(); |
8023 | for (; b != e; ++b) { |
8024 | const BuiltinType *BT = b->getType()->getAs<BuiltinType>(); |
8025 | |
8026 | if (!BT || !BT->isFloatingPoint()) |
8027 | break; |
8028 | |
8029 | RTList.push_back(CGT.ConvertType(b->getType())); |
8030 | } |
8031 | |
8032 | if (b == e) |
8033 | return llvm::StructType::get(getVMContext(), RTList, |
8034 | RD->hasAttr<PackedAttr>()); |
8035 | |
8036 | RTList.clear(); |
8037 | } |
8038 | } |
8039 | |
8040 | CoerceToIntArgs(Size, RTList); |
8041 | return llvm::StructType::get(getVMContext(), RTList); |
8042 | } |
8043 | |
8044 | ABIArgInfo MipsABIInfo::classifyReturnType(QualType RetTy) const { |
8045 | uint64_t Size = getContext().getTypeSize(RetTy); |
8046 | |
8047 | if (RetTy->isVoidType()) |
8048 | return ABIArgInfo::getIgnore(); |
8049 | |
8050 | |
8051 | |
8052 | if (!IsO32 && Size == 0) |
8053 | return ABIArgInfo::getIgnore(); |
8054 | |
8055 | if (isAggregateTypeForABI(RetTy) || RetTy->isVectorType()) { |
8056 | if (Size <= 128) { |
8057 | if (RetTy->isAnyComplexType()) |
8058 | return ABIArgInfo::getDirect(); |
8059 | |
8060 | |
8061 | |
8062 | if (!IsO32 || |
8063 | (RetTy->isVectorType() && !RetTy->hasFloatingRepresentation())) { |
8064 | ABIArgInfo ArgInfo = |
8065 | ABIArgInfo::getDirect(returnAggregateInRegs(RetTy, Size)); |
8066 | ArgInfo.setInReg(true); |
8067 | return ArgInfo; |
8068 | } |
8069 | } |
8070 | |
8071 | return getNaturalAlignIndirect(RetTy); |
8072 | } |
8073 | |
8074 | |
8075 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
8076 | RetTy = EnumTy->getDecl()->getIntegerType(); |
8077 | |
8078 | |
8079 | if (const auto *EIT = RetTy->getAs<ExtIntType>()) |
8080 | if (EIT->getNumBits() > 128 || |
8081 | (EIT->getNumBits() > 64 && |
8082 | !getContext().getTargetInfo().hasInt128Type())) |
8083 | return getNaturalAlignIndirect(RetTy); |
8084 | |
8085 | if (isPromotableIntegerTypeForABI(RetTy)) |
8086 | return ABIArgInfo::getExtend(RetTy); |
8087 | |
8088 | if ((RetTy->isUnsignedIntegerOrEnumerationType() || |
8089 | RetTy->isSignedIntegerOrEnumerationType()) && Size == 32 && !IsO32) |
8090 | return ABIArgInfo::getSignExtend(RetTy); |
8091 | |
8092 | return ABIArgInfo::getDirect(); |
8093 | } |
8094 | |
8095 | void MipsABIInfo::computeInfo(CGFunctionInfo &FI) const { |
8096 | ABIArgInfo &RetInfo = FI.getReturnInfo(); |
8097 | if (!getCXXABI().classifyReturnType(FI)) |
8098 | RetInfo = classifyReturnType(FI.getReturnType()); |
8099 | |
8100 | |
8101 | uint64_t Offset = RetInfo.isIndirect() ? MinABIStackAlignInBytes : 0; |
8102 | |
8103 | for (auto &I : FI.arguments()) |
8104 | I.info = classifyArgumentType(I.type, Offset); |
8105 | } |
8106 | |
8107 | Address MipsABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
8108 | QualType OrigTy) const { |
8109 | QualType Ty = OrigTy; |
8110 | |
8111 | |
8112 | |
8113 | unsigned SlotSizeInBits = IsO32 ? 32 : 64; |
8114 | unsigned PtrWidth = getTarget().getPointerWidth(0); |
8115 | bool DidPromote = false; |
8116 | if ((Ty->isIntegerType() && |
8117 | getContext().getIntWidth(Ty) < SlotSizeInBits) || |
8118 | (Ty->isPointerType() && PtrWidth < SlotSizeInBits)) { |
8119 | DidPromote = true; |
8120 | Ty = getContext().getIntTypeForBitwidth(SlotSizeInBits, |
8121 | Ty->isSignedIntegerType()); |
8122 | } |
8123 | |
8124 | auto TyInfo = getContext().getTypeInfoInChars(Ty); |
8125 | |
8126 | |
8127 | |
8128 | TyInfo.Align = |
8129 | std::min(TyInfo.Align, CharUnits::fromQuantity(StackAlignInBytes)); |
8130 | |
8131 | |
8132 | CharUnits ArgSlotSize = CharUnits::fromQuantity(MinABIStackAlignInBytes); |
8133 | |
8134 | Address Addr = emitVoidPtrVAArg(CGF, VAListAddr, Ty, false, |
8135 | TyInfo, ArgSlotSize, true); |
8136 | |
8137 | |
8138 | |
8139 | |
8140 | if (DidPromote) { |
8141 | Address Temp = CGF.CreateMemTemp(OrigTy, "vaarg.promotion-temp"); |
8142 | llvm::Value *Promoted = CGF.Builder.CreateLoad(Addr); |
8143 | |
8144 | |
8145 | llvm::Type *IntTy = (OrigTy->isIntegerType() ? Temp.getElementType() |
8146 | : CGF.IntPtrTy); |
8147 | llvm::Value *V = CGF.Builder.CreateTrunc(Promoted, IntTy); |
8148 | if (OrigTy->isPointerType()) |
8149 | V = CGF.Builder.CreateIntToPtr(V, Temp.getElementType()); |
8150 | |
8151 | CGF.Builder.CreateStore(V, Temp); |
8152 | Addr = Temp; |
8153 | } |
8154 | |
8155 | return Addr; |
8156 | } |
8157 | |
8158 | ABIArgInfo MipsABIInfo::extendType(QualType Ty) const { |
8159 | int TySize = getContext().getTypeSize(Ty); |
8160 | |
8161 | |
8162 | if (Ty->isUnsignedIntegerOrEnumerationType() && TySize == 32) |
8163 | return ABIArgInfo::getSignExtend(Ty); |
8164 | |
8165 | return ABIArgInfo::getExtend(Ty); |
8166 | } |
8167 | |
8168 | bool |
8169 | MIPSTargetCodeGenInfo::initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
8170 | llvm::Value *Address) const { |
8171 | |
8172 | |
8173 | |
8174 | |
8175 | |
8176 | llvm::Value *Four8 = llvm::ConstantInt::get(CGF.Int8Ty, 4); |
8177 | |
8178 | |
8179 | |
8180 | |
8181 | |
8182 | AssignToArrayRange(CGF.Builder, Address, Four8, 0, 65); |
8183 | |
8184 | |
8185 | |
8186 | |
8187 | |
8188 | |
8189 | |
8190 | |
8191 | |
8192 | AssignToArrayRange(CGF.Builder, Address, Four8, 80, 181); |
8193 | return false; |
8194 | } |
8195 | |
8196 | |
8197 | |
8198 | |
8199 | |
8200 | namespace { |
8201 | |
8202 | class M68kTargetCodeGenInfo : public TargetCodeGenInfo { |
8203 | public: |
8204 | M68kTargetCodeGenInfo(CodeGenTypes &CGT) |
8205 | : TargetCodeGenInfo(std::make_unique<DefaultABIInfo>(CGT)) {} |
8206 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
8207 | CodeGen::CodeGenModule &M) const override; |
8208 | }; |
8209 | |
8210 | } |
8211 | |
8212 | void M68kTargetCodeGenInfo::setTargetAttributes( |
8213 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const { |
8214 | if (const auto *FD = dyn_cast_or_null<FunctionDecl>(D)) { |
8215 | if (const auto *attr = FD->getAttr<M68kInterruptAttr>()) { |
8216 | |
8217 | llvm::Function *F = cast<llvm::Function>(GV); |
8218 | |
8219 | |
8220 | F->setCallingConv(llvm::CallingConv::M68k_INTR); |
8221 | |
8222 | |
8223 | F->addFnAttr(llvm::Attribute::NoInline); |
8224 | |
8225 | |
8226 | unsigned Num = attr->getNumber() / 2; |
8227 | llvm::GlobalAlias::create(llvm::Function::ExternalLinkage, |
8228 | "__isr_" + Twine(Num), F); |
8229 | } |
8230 | } |
8231 | } |
8232 | |
8233 | |
8234 | |
8235 | |
8236 | |
8237 | |
8238 | |
8239 | namespace { |
8240 | class AVRABIInfo : public DefaultABIInfo { |
8241 | public: |
8242 | AVRABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
8243 | |
8244 | ABIArgInfo classifyReturnType(QualType Ty) const { |
8245 | |
8246 | |
8247 | if (isAggregateTypeForABI(Ty) && getContext().getTypeSize(Ty) <= 64) |
8248 | return ABIArgInfo::getDirect(); |
8249 | else |
8250 | return DefaultABIInfo::classifyReturnType(Ty); |
8251 | } |
8252 | |
8253 | |
8254 | |
8255 | void computeInfo(CGFunctionInfo &FI) const override { |
8256 | if (!getCXXABI().classifyReturnType(FI)) |
8257 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
8258 | for (auto &I : FI.arguments()) |
8259 | I.info = classifyArgumentType(I.type); |
8260 | } |
8261 | }; |
8262 | |
8263 | class AVRTargetCodeGenInfo : public TargetCodeGenInfo { |
8264 | public: |
8265 | AVRTargetCodeGenInfo(CodeGenTypes &CGT) |
8266 | : TargetCodeGenInfo(std::make_unique<AVRABIInfo>(CGT)) {} |
8267 | |
8268 | LangAS getGlobalVarAddressSpace(CodeGenModule &CGM, |
8269 | const VarDecl *D) const override { |
8270 | |
8271 | |
8272 | LangAS AS = D->getType().getAddressSpace(); |
8273 | if (isTargetAddressSpace(AS) && toTargetAddressSpace(AS) == 1 && |
8274 | !D->getType().isConstQualified()) |
8275 | CGM.getDiags().Report(D->getLocation(), |
8276 | diag::err_verify_nonconst_addrspace) |
8277 | << "__flash"; |
8278 | return TargetCodeGenInfo::getGlobalVarAddressSpace(CGM, D); |
8279 | } |
8280 | |
8281 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
8282 | CodeGen::CodeGenModule &CGM) const override { |
8283 | if (GV->isDeclaration()) |
8284 | return; |
8285 | const auto *FD = dyn_cast_or_null<FunctionDecl>(D); |
8286 | if (!FD) return; |
8287 | auto *Fn = cast<llvm::Function>(GV); |
8288 | |
8289 | if (FD->getAttr<AVRInterruptAttr>()) |
8290 | Fn->addFnAttr("interrupt"); |
8291 | |
8292 | if (FD->getAttr<AVRSignalAttr>()) |
8293 | Fn->addFnAttr("signal"); |
8294 | } |
8295 | }; |
8296 | } |
8297 | |
8298 | |
8299 | |
8300 | |
8301 | |
8302 | |
8303 | |
8304 | namespace { |
8305 | |
8306 | class TCETargetCodeGenInfo : public DefaultTargetCodeGenInfo { |
8307 | public: |
8308 | TCETargetCodeGenInfo(CodeGenTypes &CGT) |
8309 | : DefaultTargetCodeGenInfo(CGT) {} |
8310 | |
8311 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
8312 | CodeGen::CodeGenModule &M) const override; |
8313 | }; |
8314 | |
8315 | void TCETargetCodeGenInfo::setTargetAttributes( |
8316 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const { |
8317 | if (GV->isDeclaration()) |
8318 | return; |
8319 | const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); |
8320 | if (!FD) return; |
8321 | |
8322 | llvm::Function *F = cast<llvm::Function>(GV); |
8323 | |
8324 | if (M.getLangOpts().OpenCL) { |
8325 | if (FD->hasAttr<OpenCLKernelAttr>()) { |
8326 | |
8327 | F->addFnAttr(llvm::Attribute::NoInline); |
8328 | const ReqdWorkGroupSizeAttr *Attr = FD->getAttr<ReqdWorkGroupSizeAttr>(); |
8329 | if (Attr) { |
8330 | |
8331 | llvm::LLVMContext &Context = F->getContext(); |
8332 | llvm::NamedMDNode *OpenCLMetadata = |
8333 | M.getModule().getOrInsertNamedMetadata( |
8334 | "opencl.kernel_wg_size_info"); |
8335 | |
8336 | SmallVector<llvm::Metadata *, 5> Operands; |
8337 | Operands.push_back(llvm::ConstantAsMetadata::get(F)); |
8338 | |
8339 | Operands.push_back( |
8340 | llvm::ConstantAsMetadata::get(llvm::Constant::getIntegerValue( |
8341 | M.Int32Ty, llvm::APInt(32, Attr->getXDim())))); |
8342 | Operands.push_back( |
8343 | llvm::ConstantAsMetadata::get(llvm::Constant::getIntegerValue( |
8344 | M.Int32Ty, llvm::APInt(32, Attr->getYDim())))); |
8345 | Operands.push_back( |
8346 | llvm::ConstantAsMetadata::get(llvm::Constant::getIntegerValue( |
8347 | M.Int32Ty, llvm::APInt(32, Attr->getZDim())))); |
8348 | |
8349 | |
8350 | |
8351 | |
8352 | Operands.push_back( |
8353 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getTrue(Context))); |
8354 | OpenCLMetadata->addOperand(llvm::MDNode::get(Context, Operands)); |
8355 | } |
8356 | } |
8357 | } |
8358 | } |
8359 | |
8360 | } |
8361 | |
8362 | |
8363 | |
8364 | |
8365 | |
8366 | namespace { |
8367 | |
8368 | class HexagonABIInfo : public DefaultABIInfo { |
8369 | public: |
8370 | HexagonABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
8371 | |
8372 | private: |
8373 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
8374 | ABIArgInfo classifyArgumentType(QualType RetTy) const; |
8375 | ABIArgInfo classifyArgumentType(QualType RetTy, unsigned *RegsLeft) const; |
8376 | |
8377 | void computeInfo(CGFunctionInfo &FI) const override; |
8378 | |
8379 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
8380 | QualType Ty) const override; |
8381 | Address EmitVAArgFromMemory(CodeGenFunction &CFG, Address VAListAddr, |
8382 | QualType Ty) const; |
8383 | Address EmitVAArgForHexagon(CodeGenFunction &CFG, Address VAListAddr, |
8384 | QualType Ty) const; |
8385 | Address EmitVAArgForHexagonLinux(CodeGenFunction &CFG, Address VAListAddr, |
8386 | QualType Ty) const; |
8387 | }; |
8388 | |
8389 | class HexagonTargetCodeGenInfo : public TargetCodeGenInfo { |
8390 | public: |
8391 | HexagonTargetCodeGenInfo(CodeGenTypes &CGT) |
8392 | : TargetCodeGenInfo(std::make_unique<HexagonABIInfo>(CGT)) {} |
8393 | |
8394 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
8395 | return 29; |
8396 | } |
8397 | |
8398 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
8399 | CodeGen::CodeGenModule &GCM) const override { |
8400 | if (GV->isDeclaration()) |
8401 | return; |
8402 | const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); |
8403 | if (!FD) |
8404 | return; |
8405 | } |
8406 | }; |
8407 | |
8408 | } |
8409 | |
8410 | void HexagonABIInfo::computeInfo(CGFunctionInfo &FI) const { |
8411 | unsigned RegsLeft = 6; |
8412 | if (!getCXXABI().classifyReturnType(FI)) |
8413 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
8414 | for (auto &I : FI.arguments()) |
8415 | I.info = classifyArgumentType(I.type, &RegsLeft); |
8416 | } |
8417 | |
8418 | static bool HexagonAdjustRegsLeft(uint64_t Size, unsigned *RegsLeft) { |
8419 | assert(Size <= 64 && "Not expecting to pass arguments larger than 64 bits" |
8420 | " through registers"); |
8421 | |
8422 | if (*RegsLeft == 0) |
8423 | return false; |
8424 | |
8425 | if (Size <= 32) { |
8426 | (*RegsLeft)--; |
8427 | return true; |
8428 | } |
8429 | |
8430 | if (2 <= (*RegsLeft & (~1U))) { |
8431 | *RegsLeft = (*RegsLeft & (~1U)) - 2; |
8432 | return true; |
8433 | } |
8434 | |
8435 | |
8436 | |
8437 | if (*RegsLeft == 1) |
8438 | *RegsLeft = 0; |
8439 | |
8440 | return false; |
8441 | } |
8442 | |
8443 | ABIArgInfo HexagonABIInfo::classifyArgumentType(QualType Ty, |
8444 | unsigned *RegsLeft) const { |
8445 | if (!isAggregateTypeForABI(Ty)) { |
8446 | |
8447 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
8448 | Ty = EnumTy->getDecl()->getIntegerType(); |
8449 | |
8450 | uint64_t Size = getContext().getTypeSize(Ty); |
8451 | if (Size <= 64) |
8452 | HexagonAdjustRegsLeft(Size, RegsLeft); |
8453 | |
8454 | if (Size > 64 && Ty->isExtIntType()) |
8455 | return getNaturalAlignIndirect(Ty, true); |
8456 | |
8457 | return isPromotableIntegerTypeForABI(Ty) ? ABIArgInfo::getExtend(Ty) |
8458 | : ABIArgInfo::getDirect(); |
8459 | } |
8460 | |
8461 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
8462 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
8463 | |
8464 | |
8465 | if (isEmptyRecord(getContext(), Ty, true)) |
8466 | return ABIArgInfo::getIgnore(); |
8467 | |
8468 | uint64_t Size = getContext().getTypeSize(Ty); |
8469 | unsigned Align = getContext().getTypeAlign(Ty); |
8470 | |
8471 | if (Size > 64) |
8472 | return getNaturalAlignIndirect(Ty, true); |
8473 | |
8474 | if (HexagonAdjustRegsLeft(Size, RegsLeft)) |
8475 | Align = Size <= 32 ? 32 : 64; |
8476 | if (Size <= Align) { |
8477 | |
8478 | if (!llvm::isPowerOf2_64(Size)) |
8479 | Size = llvm::NextPowerOf2(Size); |
8480 | return ABIArgInfo::getDirect(llvm::Type::getIntNTy(getVMContext(), Size)); |
8481 | } |
8482 | return DefaultABIInfo::classifyArgumentType(Ty); |
8483 | } |
8484 | |
8485 | ABIArgInfo HexagonABIInfo::classifyReturnType(QualType RetTy) const { |
8486 | if (RetTy->isVoidType()) |
8487 | return ABIArgInfo::getIgnore(); |
8488 | |
8489 | const TargetInfo &T = CGT.getTarget(); |
8490 | uint64_t Size = getContext().getTypeSize(RetTy); |
8491 | |
8492 | if (RetTy->getAs<VectorType>()) { |
8493 | |
8494 | if (T.hasFeature("hvx")) { |
8495 | assert(T.hasFeature("hvx-length64b") || T.hasFeature("hvx-length128b")); |
8496 | uint64_t VecSize = T.hasFeature("hvx-length64b") ? 64*8 : 128*8; |
8497 | if (Size == VecSize || Size == 2*VecSize) |
8498 | return ABIArgInfo::getDirectInReg(); |
8499 | } |
8500 | |
8501 | if (Size > 64) |
8502 | return getNaturalAlignIndirect(RetTy); |
8503 | } |
8504 | |
8505 | if (!isAggregateTypeForABI(RetTy)) { |
8506 | |
8507 | if (const EnumType *EnumTy = RetTy->getAs<EnumType>()) |
8508 | RetTy = EnumTy->getDecl()->getIntegerType(); |
8509 | |
8510 | if (Size > 64 && RetTy->isExtIntType()) |
8511 | return getNaturalAlignIndirect(RetTy, false); |
8512 | |
8513 | return isPromotableIntegerTypeForABI(RetTy) ? ABIArgInfo::getExtend(RetTy) |
8514 | : ABIArgInfo::getDirect(); |
8515 | } |
8516 | |
8517 | if (isEmptyRecord(getContext(), RetTy, true)) |
8518 | return ABIArgInfo::getIgnore(); |
8519 | |
8520 | |
8521 | |
8522 | if (Size <= 64) { |
8523 | |
8524 | if (!llvm::isPowerOf2_64(Size)) |
8525 | Size = llvm::NextPowerOf2(Size); |
8526 | return ABIArgInfo::getDirect(llvm::Type::getIntNTy(getVMContext(), Size)); |
8527 | } |
8528 | return getNaturalAlignIndirect(RetTy, true); |
8529 | } |
8530 | |
8531 | Address HexagonABIInfo::EmitVAArgFromMemory(CodeGenFunction &CGF, |
8532 | Address VAListAddr, |
8533 | QualType Ty) const { |
8534 | |
8535 | Address __overflow_area_pointer_p = |
8536 | CGF.Builder.CreateStructGEP(VAListAddr, 2, "__overflow_area_pointer_p"); |
8537 | llvm::Value *__overflow_area_pointer = CGF.Builder.CreateLoad( |
8538 | __overflow_area_pointer_p, "__overflow_area_pointer"); |
8539 | |
8540 | uint64_t Align = CGF.getContext().getTypeAlign(Ty) / 8; |
8541 | if (Align > 4) { |
8542 | |
8543 | assert((Align & (Align - 1)) == 0 && "Alignment is not power of 2!"); |
8544 | |
8545 | |
8546 | llvm::Value *Offset = llvm::ConstantInt::get(CGF.Int64Ty, Align - 1); |
8547 | |
8548 | |
8549 | __overflow_area_pointer = |
8550 | CGF.Builder.CreateGEP(CGF.Int8Ty, __overflow_area_pointer, Offset); |
8551 | llvm::Value *AsInt = |
8552 | CGF.Builder.CreatePtrToInt(__overflow_area_pointer, CGF.Int32Ty); |
8553 | |
8554 | |
8555 | |
8556 | llvm::Value *Mask = llvm::ConstantInt::get(CGF.Int32Ty, -(int)Align); |
8557 | __overflow_area_pointer = CGF.Builder.CreateIntToPtr( |
8558 | CGF.Builder.CreateAnd(AsInt, Mask), __overflow_area_pointer->getType(), |
8559 | "__overflow_area_pointer.align"); |
8560 | } |
8561 | |
8562 | |
8563 | |
8564 | llvm::Type *PTy = CGF.ConvertTypeForMem(Ty); |
8565 | Address AddrTyped = CGF.Builder.CreateBitCast( |
8566 | Address(__overflow_area_pointer, CharUnits::fromQuantity(Align)), |
8567 | llvm::PointerType::getUnqual(PTy)); |
8568 | |
8569 | |
8570 | uint64_t Offset = llvm::alignTo(CGF.getContext().getTypeSize(Ty) / 8, 4); |
8571 | |
8572 | __overflow_area_pointer = CGF.Builder.CreateGEP( |
8573 | CGF.Int8Ty, __overflow_area_pointer, |
8574 | llvm::ConstantInt::get(CGF.Int32Ty, Offset), |
8575 | "__overflow_area_pointer.next"); |
8576 | CGF.Builder.CreateStore(__overflow_area_pointer, __overflow_area_pointer_p); |
8577 | |
8578 | return AddrTyped; |
8579 | } |
8580 | |
8581 | Address HexagonABIInfo::EmitVAArgForHexagon(CodeGenFunction &CGF, |
8582 | Address VAListAddr, |
8583 | QualType Ty) const { |
8584 | |
8585 | llvm::Type *BP = CGF.Int8PtrTy; |
8586 | llvm::Type *BPP = CGF.Int8PtrPtrTy; |
8587 | CGBuilderTy &Builder = CGF.Builder; |
8588 | Address VAListAddrAsBPP = Builder.CreateBitCast(VAListAddr, BPP, "ap"); |
8589 | llvm::Value *Addr = Builder.CreateLoad(VAListAddrAsBPP, "ap.cur"); |
8590 | |
8591 | uint64_t TyAlign = CGF.getContext().getTypeAlign(Ty) / 8; |
8592 | if (TyAlign > 4) { |
8593 | assert((TyAlign & (TyAlign - 1)) == 0 && "Alignment is not power of 2!"); |
8594 | llvm::Value *AddrAsInt = Builder.CreatePtrToInt(Addr, CGF.Int32Ty); |
8595 | AddrAsInt = Builder.CreateAdd(AddrAsInt, Builder.getInt32(TyAlign - 1)); |
8596 | AddrAsInt = Builder.CreateAnd(AddrAsInt, Builder.getInt32(~(TyAlign - 1))); |
8597 | Addr = Builder.CreateIntToPtr(AddrAsInt, BP); |
8598 | } |
8599 | llvm::Type *PTy = llvm::PointerType::getUnqual(CGF.ConvertType(Ty)); |
8600 | Address AddrTyped = Builder.CreateBitCast( |
8601 | Address(Addr, CharUnits::fromQuantity(TyAlign)), PTy); |
8602 | |
8603 | uint64_t Offset = llvm::alignTo(CGF.getContext().getTypeSize(Ty) / 8, 4); |
8604 | llvm::Value *NextAddr = Builder.CreateGEP( |
8605 | CGF.Int8Ty, Addr, llvm::ConstantInt::get(CGF.Int32Ty, Offset), "ap.next"); |
8606 | Builder.CreateStore(NextAddr, VAListAddrAsBPP); |
8607 | |
8608 | return AddrTyped; |
8609 | } |
8610 | |
8611 | Address HexagonABIInfo::EmitVAArgForHexagonLinux(CodeGenFunction &CGF, |
8612 | Address VAListAddr, |
8613 | QualType Ty) const { |
8614 | int ArgSize = CGF.getContext().getTypeSize(Ty) / 8; |
8615 | |
8616 | if (ArgSize > 8) |
8617 | return EmitVAArgFromMemory(CGF, VAListAddr, Ty); |
8618 | |
8619 | |
8620 | |
8621 | |
8622 | |
8623 | unsigned RegsLeft = 6; |
8624 | Ty = CGF.getContext().getCanonicalType(Ty); |
8625 | (void)classifyArgumentType(Ty, &RegsLeft); |
8626 | |
8627 | llvm::BasicBlock *MaybeRegBlock = CGF.createBasicBlock("vaarg.maybe_reg"); |
8628 | llvm::BasicBlock *InRegBlock = CGF.createBasicBlock("vaarg.in_reg"); |
8629 | llvm::BasicBlock *OnStackBlock = CGF.createBasicBlock("vaarg.on_stack"); |
8630 | llvm::BasicBlock *ContBlock = CGF.createBasicBlock("vaarg.end"); |
8631 | |
8632 | |
8633 | |
8634 | ArgSize = (CGF.getContext().getTypeSize(Ty) <= 32) ? 4 : 8; |
8635 | int ArgAlign = (CGF.getContext().getTypeSize(Ty) <= 32) ? 4 : 8; |
8636 | |
8637 | |
8638 | CGF.EmitBlock(MaybeRegBlock); |
8639 | |
8640 | |
8641 | Address __current_saved_reg_area_pointer_p = CGF.Builder.CreateStructGEP( |
8642 | VAListAddr, 0, "__current_saved_reg_area_pointer_p"); |
8643 | llvm::Value *__current_saved_reg_area_pointer = CGF.Builder.CreateLoad( |
8644 | __current_saved_reg_area_pointer_p, "__current_saved_reg_area_pointer"); |
8645 | |
8646 | |
8647 | Address __saved_reg_area_end_pointer_p = CGF.Builder.CreateStructGEP( |
8648 | VAListAddr, 1, "__saved_reg_area_end_pointer_p"); |
8649 | llvm::Value *__saved_reg_area_end_pointer = CGF.Builder.CreateLoad( |
8650 | __saved_reg_area_end_pointer_p, "__saved_reg_area_end_pointer"); |
8651 | |
8652 | |
8653 | |
8654 | if (ArgAlign > 4) { |
8655 | |
8656 | llvm::Value *__current_saved_reg_area_pointer_int = |
8657 | CGF.Builder.CreatePtrToInt(__current_saved_reg_area_pointer, |
8658 | CGF.Int32Ty); |
8659 | |
8660 | __current_saved_reg_area_pointer_int = CGF.Builder.CreateAdd( |
8661 | __current_saved_reg_area_pointer_int, |
8662 | llvm::ConstantInt::get(CGF.Int32Ty, (ArgAlign - 1)), |
8663 | "align_current_saved_reg_area_pointer"); |
8664 | |
8665 | __current_saved_reg_area_pointer_int = |
8666 | CGF.Builder.CreateAnd(__current_saved_reg_area_pointer_int, |
8667 | llvm::ConstantInt::get(CGF.Int32Ty, -ArgAlign), |
8668 | "align_current_saved_reg_area_pointer"); |
8669 | |
8670 | __current_saved_reg_area_pointer = |
8671 | CGF.Builder.CreateIntToPtr(__current_saved_reg_area_pointer_int, |
8672 | __current_saved_reg_area_pointer->getType(), |
8673 | "align_current_saved_reg_area_pointer"); |
8674 | } |
8675 | |
8676 | llvm::Value *__new_saved_reg_area_pointer = |
8677 | CGF.Builder.CreateGEP(CGF.Int8Ty, __current_saved_reg_area_pointer, |
8678 | llvm::ConstantInt::get(CGF.Int32Ty, ArgSize), |
8679 | "__new_saved_reg_area_pointer"); |
8680 | |
8681 | llvm::Value *UsingStack = 0; |
8682 | UsingStack = CGF.Builder.CreateICmpSGT(__new_saved_reg_area_pointer, |
8683 | __saved_reg_area_end_pointer); |
8684 | |
8685 | CGF.Builder.CreateCondBr(UsingStack, OnStackBlock, InRegBlock); |
8686 | |
8687 | |
8688 | |
8689 | CGF.EmitBlock(InRegBlock); |
8690 | |
8691 | llvm::Type *PTy = CGF.ConvertType(Ty); |
8692 | llvm::Value *__saved_reg_area_p = CGF.Builder.CreateBitCast( |
8693 | __current_saved_reg_area_pointer, llvm::PointerType::getUnqual(PTy)); |
8694 | |
8695 | CGF.Builder.CreateStore(__new_saved_reg_area_pointer, |
8696 | __current_saved_reg_area_pointer_p); |
8697 | |
8698 | CGF.EmitBranch(ContBlock); |
8699 | |
8700 | |
8701 | |
8702 | CGF.EmitBlock(OnStackBlock); |
8703 | |
8704 | |
8705 | Address __overflow_area_pointer_p = |
8706 | CGF.Builder.CreateStructGEP(VAListAddr, 2, "__overflow_area_pointer_p"); |
8707 | llvm::Value *__overflow_area_pointer = CGF.Builder.CreateLoad( |
8708 | __overflow_area_pointer_p, "__overflow_area_pointer"); |
8709 | |
8710 | |
8711 | if (ArgAlign > 4) { |
8712 | llvm::Value *__overflow_area_pointer_int = |
8713 | CGF.Builder.CreatePtrToInt(__overflow_area_pointer, CGF.Int32Ty); |
8714 | |
8715 | __overflow_area_pointer_int = |
8716 | CGF.Builder.CreateAdd(__overflow_area_pointer_int, |
8717 | llvm::ConstantInt::get(CGF.Int32Ty, ArgAlign - 1), |
8718 | "align_overflow_area_pointer"); |
8719 | |
8720 | __overflow_area_pointer_int = |
8721 | CGF.Builder.CreateAnd(__overflow_area_pointer_int, |
8722 | llvm::ConstantInt::get(CGF.Int32Ty, -ArgAlign), |
8723 | "align_overflow_area_pointer"); |
8724 | |
8725 | __overflow_area_pointer = CGF.Builder.CreateIntToPtr( |
8726 | __overflow_area_pointer_int, __overflow_area_pointer->getType(), |
8727 | "align_overflow_area_pointer"); |
8728 | } |
8729 | |
8730 | |
8731 | |
8732 | llvm::Value *__new_overflow_area_pointer = CGF.Builder.CreateGEP( |
8733 | CGF.Int8Ty, __overflow_area_pointer, |
8734 | llvm::ConstantInt::get(CGF.Int32Ty, ArgSize), |
8735 | "__overflow_area_pointer.next"); |
8736 | |
8737 | CGF.Builder.CreateStore(__new_overflow_area_pointer, |
8738 | __overflow_area_pointer_p); |
8739 | |
8740 | CGF.Builder.CreateStore(__new_overflow_area_pointer, |
8741 | __current_saved_reg_area_pointer_p); |
8742 | |
8743 | |
8744 | llvm::Type *OverflowPTy = CGF.ConvertTypeForMem(Ty); |
8745 | llvm::Value *__overflow_area_p = CGF.Builder.CreateBitCast( |
8746 | __overflow_area_pointer, llvm::PointerType::getUnqual(OverflowPTy)); |
8747 | |
8748 | CGF.EmitBranch(ContBlock); |
8749 | |
8750 | |
8751 | |
8752 | CGF.EmitBlock(ContBlock); |
8753 | |
8754 | llvm::Type *MemPTy = llvm::PointerType::getUnqual(CGF.ConvertTypeForMem(Ty)); |
8755 | llvm::PHINode *ArgAddr = CGF.Builder.CreatePHI(MemPTy, 2, "vaarg.addr"); |
8756 | ArgAddr->addIncoming(__saved_reg_area_p, InRegBlock); |
8757 | ArgAddr->addIncoming(__overflow_area_p, OnStackBlock); |
8758 | |
8759 | return Address(ArgAddr, CharUnits::fromQuantity(ArgAlign)); |
8760 | } |
8761 | |
8762 | Address HexagonABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
8763 | QualType Ty) const { |
8764 | |
8765 | if (getTarget().getTriple().isMusl()) |
8766 | return EmitVAArgForHexagonLinux(CGF, VAListAddr, Ty); |
8767 | |
8768 | return EmitVAArgForHexagon(CGF, VAListAddr, Ty); |
8769 | } |
8770 | |
8771 | |
8772 | |
8773 | |
8774 | |
8775 | namespace { |
8776 | class LanaiABIInfo : public DefaultABIInfo { |
8777 | public: |
8778 | LanaiABIInfo(CodeGen::CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
8779 | |
8780 | bool shouldUseInReg(QualType Ty, CCState &State) const; |
8781 | |
8782 | void computeInfo(CGFunctionInfo &FI) const override { |
8783 | CCState State(FI); |
8784 | |
8785 | |
8786 | if (FI.getHasRegParm()) { |
8787 | State.FreeRegs = FI.getRegParm(); |
8788 | } else { |
8789 | State.FreeRegs = 4; |
8790 | } |
8791 | |
8792 | if (!getCXXABI().classifyReturnType(FI)) |
8793 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
8794 | for (auto &I : FI.arguments()) |
8795 | I.info = classifyArgumentType(I.type, State); |
8796 | } |
8797 | |
8798 | ABIArgInfo getIndirectResult(QualType Ty, bool ByVal, CCState &State) const; |
8799 | ABIArgInfo classifyArgumentType(QualType RetTy, CCState &State) const; |
8800 | }; |
8801 | } |
8802 | |
8803 | bool LanaiABIInfo::shouldUseInReg(QualType Ty, CCState &State) const { |
8804 | unsigned Size = getContext().getTypeSize(Ty); |
8805 | unsigned SizeInRegs = llvm::alignTo(Size, 32U) / 32U; |
8806 | |
8807 | if (SizeInRegs == 0) |
8808 | return false; |
8809 | |
8810 | if (SizeInRegs > State.FreeRegs) { |
8811 | State.FreeRegs = 0; |
8812 | return false; |
8813 | } |
8814 | |
8815 | State.FreeRegs -= SizeInRegs; |
8816 | |
8817 | return true; |
8818 | } |
8819 | |
8820 | ABIArgInfo LanaiABIInfo::getIndirectResult(QualType Ty, bool ByVal, |
8821 | CCState &State) const { |
8822 | if (!ByVal) { |
8823 | if (State.FreeRegs) { |
8824 | --State.FreeRegs; |
8825 | return getNaturalAlignIndirectInReg(Ty); |
8826 | } |
8827 | return getNaturalAlignIndirect(Ty, false); |
8828 | } |
8829 | |
8830 | |
8831 | const unsigned MinABIStackAlignInBytes = 4; |
8832 | unsigned TypeAlign = getContext().getTypeAlign(Ty) / 8; |
8833 | return ABIArgInfo::getIndirect(CharUnits::fromQuantity(4), true, |
8834 | TypeAlign > |
8835 | MinABIStackAlignInBytes); |
8836 | } |
8837 | |
8838 | ABIArgInfo LanaiABIInfo::classifyArgumentType(QualType Ty, |
8839 | CCState &State) const { |
8840 | |
8841 | const RecordType *RT = Ty->getAs<RecordType>(); |
8842 | if (RT) { |
8843 | CGCXXABI::RecordArgABI RAA = getRecordArgABI(RT, getCXXABI()); |
8844 | if (RAA == CGCXXABI::RAA_Indirect) { |
8845 | return getIndirectResult(Ty, false, State); |
8846 | } else if (RAA == CGCXXABI::RAA_DirectInMemory) { |
8847 | return getNaturalAlignIndirect(Ty, true); |
8848 | } |
8849 | } |
8850 | |
8851 | if (isAggregateTypeForABI(Ty)) { |
8852 | |
8853 | if (RT && RT->getDecl()->hasFlexibleArrayMember()) |
8854 | return getIndirectResult(Ty, true, State); |
8855 | |
8856 | |
8857 | if (isEmptyRecord(getContext(), Ty, true)) |
8858 | return ABIArgInfo::getIgnore(); |
8859 | |
8860 | llvm::LLVMContext &LLVMContext = getVMContext(); |
8861 | unsigned SizeInRegs = (getContext().getTypeSize(Ty) + 31) / 32; |
8862 | if (SizeInRegs <= State.FreeRegs) { |
8863 | llvm::IntegerType *Int32 = llvm::Type::getInt32Ty(LLVMContext); |
8864 | SmallVector<llvm::Type *, 3> Elements(SizeInRegs, Int32); |
8865 | llvm::Type *Result = llvm::StructType::get(LLVMContext, Elements); |
8866 | State.FreeRegs -= SizeInRegs; |
8867 | return ABIArgInfo::getDirectInReg(Result); |
8868 | } else { |
8869 | State.FreeRegs = 0; |
8870 | } |
8871 | return getIndirectResult(Ty, true, State); |
8872 | } |
8873 | |
8874 | |
8875 | if (const auto *EnumTy = Ty->getAs<EnumType>()) |
8876 | Ty = EnumTy->getDecl()->getIntegerType(); |
8877 | |
8878 | bool InReg = shouldUseInReg(Ty, State); |
8879 | |
8880 | |
8881 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
8882 | if (EIT->getNumBits() > 64) |
8883 | return getIndirectResult(Ty, true, State); |
8884 | |
8885 | if (isPromotableIntegerTypeForABI(Ty)) { |
8886 | if (InReg) |
8887 | return ABIArgInfo::getDirectInReg(); |
8888 | return ABIArgInfo::getExtend(Ty); |
8889 | } |
8890 | if (InReg) |
8891 | return ABIArgInfo::getDirectInReg(); |
8892 | return ABIArgInfo::getDirect(); |
8893 | } |
8894 | |
8895 | namespace { |
8896 | class LanaiTargetCodeGenInfo : public TargetCodeGenInfo { |
8897 | public: |
8898 | LanaiTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT) |
8899 | : TargetCodeGenInfo(std::make_unique<LanaiABIInfo>(CGT)) {} |
8900 | }; |
8901 | } |
8902 | |
8903 | |
8904 | |
8905 | |
8906 | |
8907 | namespace { |
8908 | |
8909 | class AMDGPUABIInfo final : public DefaultABIInfo { |
8910 | private: |
8911 | static const unsigned MaxNumRegsForArgsRet = 16; |
8912 | |
8913 | unsigned numRegsForType(QualType Ty) const; |
8914 | |
8915 | bool isHomogeneousAggregateBaseType(QualType Ty) const override; |
8916 | bool isHomogeneousAggregateSmallEnough(const Type *Base, |
8917 | uint64_t Members) const override; |
8918 | |
8919 | |
8920 | llvm::Type *coerceKernelArgumentType(llvm::Type *Ty, unsigned FromAS, |
8921 | unsigned ToAS) const { |
8922 | |
8923 | if (Ty->isPointerTy() && Ty->getPointerAddressSpace() == FromAS) |
8924 | return llvm::PointerType::get( |
8925 | cast<llvm::PointerType>(Ty)->getElementType(), ToAS); |
8926 | return Ty; |
8927 | } |
8928 | |
8929 | public: |
8930 | explicit AMDGPUABIInfo(CodeGen::CodeGenTypes &CGT) : |
8931 | DefaultABIInfo(CGT) {} |
8932 | |
8933 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
8934 | ABIArgInfo classifyKernelArgumentType(QualType Ty) const; |
8935 | ABIArgInfo classifyArgumentType(QualType Ty, unsigned &NumRegsLeft) const; |
8936 | |
8937 | void computeInfo(CGFunctionInfo &FI) const override; |
8938 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
8939 | QualType Ty) const override; |
8940 | }; |
8941 | |
8942 | bool AMDGPUABIInfo::isHomogeneousAggregateBaseType(QualType Ty) const { |
8943 | return true; |
8944 | } |
8945 | |
8946 | bool AMDGPUABIInfo::isHomogeneousAggregateSmallEnough( |
8947 | const Type *Base, uint64_t Members) const { |
8948 | uint32_t NumRegs = (getContext().getTypeSize(Base) + 31) / 32; |
8949 | |
8950 | |
8951 | return Members * NumRegs <= MaxNumRegsForArgsRet; |
8952 | } |
8953 | |
8954 | |
8955 | unsigned AMDGPUABIInfo::numRegsForType(QualType Ty) const { |
8956 | unsigned NumRegs = 0; |
8957 | |
8958 | if (const VectorType *VT = Ty->getAs<VectorType>()) { |
8959 | |
8960 | |
8961 | QualType EltTy = VT->getElementType(); |
8962 | unsigned EltSize = getContext().getTypeSize(EltTy); |
8963 | |
8964 | |
8965 | if (EltSize == 16) |
8966 | return (VT->getNumElements() + 1) / 2; |
8967 | |
8968 | unsigned EltNumRegs = (EltSize + 31) / 32; |
8969 | return EltNumRegs * VT->getNumElements(); |
8970 | } |
8971 | |
8972 | if (const RecordType *RT = Ty->getAs<RecordType>()) { |
8973 | const RecordDecl *RD = RT->getDecl(); |
8974 | assert(!RD->hasFlexibleArrayMember()); |
8975 | |
8976 | for (const FieldDecl *Field : RD->fields()) { |
8977 | QualType FieldTy = Field->getType(); |
8978 | NumRegs += numRegsForType(FieldTy); |
8979 | } |
8980 | |
8981 | return NumRegs; |
8982 | } |
8983 | |
8984 | return (getContext().getTypeSize(Ty) + 31) / 32; |
8985 | } |
8986 | |
8987 | void AMDGPUABIInfo::computeInfo(CGFunctionInfo &FI) const { |
8988 | llvm::CallingConv::ID CC = FI.getCallingConvention(); |
8989 | |
8990 | if (!getCXXABI().classifyReturnType(FI)) |
8991 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
8992 | |
8993 | unsigned NumRegsLeft = MaxNumRegsForArgsRet; |
8994 | for (auto &Arg : FI.arguments()) { |
8995 | if (CC == llvm::CallingConv::AMDGPU_KERNEL) { |
8996 | Arg.info = classifyKernelArgumentType(Arg.type); |
8997 | } else { |
8998 | Arg.info = classifyArgumentType(Arg.type, NumRegsLeft); |
8999 | } |
9000 | } |
9001 | } |
9002 | |
9003 | Address AMDGPUABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
9004 | QualType Ty) const { |
9005 | llvm_unreachable("AMDGPU does not support varargs"); |
9006 | } |
9007 | |
9008 | ABIArgInfo AMDGPUABIInfo::classifyReturnType(QualType RetTy) const { |
9009 | if (isAggregateTypeForABI(RetTy)) { |
9010 | |
9011 | |
9012 | if (!getRecordArgABI(RetTy, getCXXABI())) { |
9013 | |
9014 | if (isEmptyRecord(getContext(), RetTy, true)) |
9015 | return ABIArgInfo::getIgnore(); |
9016 | |
9017 | |
9018 | if (const Type *SeltTy = isSingleElementStruct(RetTy, getContext())) |
9019 | return ABIArgInfo::getDirect(CGT.ConvertType(QualType(SeltTy, 0))); |
9020 | |
9021 | if (const RecordType *RT = RetTy->getAs<RecordType>()) { |
9022 | const RecordDecl *RD = RT->getDecl(); |
9023 | if (RD->hasFlexibleArrayMember()) |
9024 | return DefaultABIInfo::classifyReturnType(RetTy); |
9025 | } |
9026 | |
9027 | |
9028 | uint64_t Size = getContext().getTypeSize(RetTy); |
9029 | if (Size <= 16) |
9030 | return ABIArgInfo::getDirect(llvm::Type::getInt16Ty(getVMContext())); |
9031 | |
9032 | if (Size <= 32) |
9033 | return ABIArgInfo::getDirect(llvm::Type::getInt32Ty(getVMContext())); |
9034 | |
9035 | if (Size <= 64) { |
9036 | llvm::Type *I32Ty = llvm::Type::getInt32Ty(getVMContext()); |
9037 | return ABIArgInfo::getDirect(llvm::ArrayType::get(I32Ty, 2)); |
9038 | } |
9039 | |
9040 | if (numRegsForType(RetTy) <= MaxNumRegsForArgsRet) |
9041 | return ABIArgInfo::getDirect(); |
9042 | } |
9043 | } |
9044 | |
9045 | |
9046 | return DefaultABIInfo::classifyReturnType(RetTy); |
9047 | } |
9048 | |
9049 | |
9050 | |
9051 | ABIArgInfo AMDGPUABIInfo::classifyKernelArgumentType(QualType Ty) const { |
9052 | Ty = useFirstFieldIfTransparentUnion(Ty); |
9053 | |
9054 | |
9055 | |
9056 | if (const Type *SeltTy = isSingleElementStruct(Ty, getContext())) |
9057 | Ty = QualType(SeltTy, 0); |
9058 | |
9059 | llvm::Type *OrigLTy = CGT.ConvertType(Ty); |
9060 | llvm::Type *LTy = OrigLTy; |
9061 | if (getContext().getLangOpts().HIP) { |
9062 | LTy = coerceKernelArgumentType( |
9063 | OrigLTy, getContext().getTargetAddressSpace(LangAS::Default), |
9064 | getContext().getTargetAddressSpace(LangAS::cuda_device)); |
9065 | } |
9066 | |
9067 | |
9068 | |
9069 | |
9070 | |
9071 | |
9072 | |
9073 | if (!getContext().getLangOpts().OpenCL && LTy == OrigLTy && |
9074 | isAggregateTypeForABI(Ty)) { |
9075 | return ABIArgInfo::getIndirectAliased( |
9076 | getContext().getTypeAlignInChars(Ty), |
9077 | getContext().getTargetAddressSpace(LangAS::opencl_constant), |
9078 | false , nullptr ); |
9079 | } |
9080 | |
9081 | |
9082 | |
9083 | |
9084 | return ABIArgInfo::getDirect(LTy, 0, nullptr, false); |
9085 | } |
9086 | |
9087 | ABIArgInfo AMDGPUABIInfo::classifyArgumentType(QualType Ty, |
9088 | unsigned &NumRegsLeft) const { |
9089 | assert(NumRegsLeft <= MaxNumRegsForArgsRet && "register estimate underflow"); |
9090 | |
9091 | Ty = useFirstFieldIfTransparentUnion(Ty); |
9092 | |
9093 | if (isAggregateTypeForABI(Ty)) { |
9094 | |
9095 | |
9096 | if (auto RAA = getRecordArgABI(Ty, getCXXABI())) |
9097 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
9098 | |
9099 | |
9100 | if (isEmptyRecord(getContext(), Ty, true)) |
9101 | return ABIArgInfo::getIgnore(); |
9102 | |
9103 | |
9104 | |
9105 | |
9106 | if (const Type *SeltTy = isSingleElementStruct(Ty, getContext())) |
9107 | return ABIArgInfo::getDirect(CGT.ConvertType(QualType(SeltTy, 0))); |
9108 | |
9109 | if (const RecordType *RT = Ty->getAs<RecordType>()) { |
9110 | const RecordDecl *RD = RT->getDecl(); |
9111 | if (RD->hasFlexibleArrayMember()) |
9112 | return DefaultABIInfo::classifyArgumentType(Ty); |
9113 | } |
9114 | |
9115 | |
9116 | uint64_t Size = getContext().getTypeSize(Ty); |
9117 | if (Size <= 64) { |
9118 | unsigned NumRegs = (Size + 31) / 32; |
9119 | NumRegsLeft -= std::min(NumRegsLeft, NumRegs); |
9120 | |
9121 | if (Size <= 16) |
9122 | return ABIArgInfo::getDirect(llvm::Type::getInt16Ty(getVMContext())); |
9123 | |
9124 | if (Size <= 32) |
9125 | return ABIArgInfo::getDirect(llvm::Type::getInt32Ty(getVMContext())); |
9126 | |
9127 | |
9128 | llvm::Type *I32Ty = llvm::Type::getInt32Ty(getVMContext()); |
9129 | return ABIArgInfo::getDirect(llvm::ArrayType::get(I32Ty, 2)); |
9130 | } |
9131 | |
9132 | if (NumRegsLeft > 0) { |
9133 | unsigned NumRegs = numRegsForType(Ty); |
9134 | if (NumRegsLeft >= NumRegs) { |
9135 | NumRegsLeft -= NumRegs; |
9136 | return ABIArgInfo::getDirect(); |
9137 | } |
9138 | } |
9139 | } |
9140 | |
9141 | |
9142 | ABIArgInfo ArgInfo = DefaultABIInfo::classifyArgumentType(Ty); |
9143 | if (!ArgInfo.isIndirect()) { |
9144 | unsigned NumRegs = numRegsForType(Ty); |
9145 | NumRegsLeft -= std::min(NumRegs, NumRegsLeft); |
9146 | } |
9147 | |
9148 | return ArgInfo; |
9149 | } |
9150 | |
9151 | class AMDGPUTargetCodeGenInfo : public TargetCodeGenInfo { |
9152 | public: |
9153 | AMDGPUTargetCodeGenInfo(CodeGenTypes &CGT) |
9154 | : TargetCodeGenInfo(std::make_unique<AMDGPUABIInfo>(CGT)) {} |
9155 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
9156 | CodeGen::CodeGenModule &M) const override; |
9157 | unsigned getOpenCLKernelCallingConv() const override; |
9158 | |
9159 | llvm::Constant *getNullPointer(const CodeGen::CodeGenModule &CGM, |
9160 | llvm::PointerType *T, QualType QT) const override; |
9161 | |
9162 | LangAS getASTAllocaAddressSpace() const override { |
9163 | return getLangASFromTargetAS( |
9164 | getABIInfo().getDataLayout().getAllocaAddrSpace()); |
9165 | } |
9166 | LangAS getGlobalVarAddressSpace(CodeGenModule &CGM, |
9167 | const VarDecl *D) const override; |
9168 | llvm::SyncScope::ID getLLVMSyncScopeID(const LangOptions &LangOpts, |
9169 | SyncScope Scope, |
9170 | llvm::AtomicOrdering Ordering, |
9171 | llvm::LLVMContext &Ctx) const override; |
9172 | llvm::Function * |
9173 | createEnqueuedBlockKernel(CodeGenFunction &CGF, |
9174 | llvm::Function *BlockInvokeFunc, |
9175 | llvm::Value *BlockLiteral) const override; |
9176 | bool shouldEmitStaticExternCAliases() const override; |
9177 | void setCUDAKernelCallingConvention(const FunctionType *&FT) const override; |
9178 | }; |
9179 | } |
9180 | |
9181 | static bool requiresAMDGPUProtectedVisibility(const Decl *D, |
9182 | llvm::GlobalValue *GV) { |
9183 | if (GV->getVisibility() != llvm::GlobalValue::HiddenVisibility) |
9184 | return false; |
9185 | |
9186 | return D->hasAttr<OpenCLKernelAttr>() || |
9187 | (isa<FunctionDecl>(D) && D->hasAttr<CUDAGlobalAttr>()) || |
9188 | (isa<VarDecl>(D) && |
9189 | (D->hasAttr<CUDADeviceAttr>() || D->hasAttr<CUDAConstantAttr>() || |
9190 | cast<VarDecl>(D)->getType()->isCUDADeviceBuiltinSurfaceType() || |
9191 | cast<VarDecl>(D)->getType()->isCUDADeviceBuiltinTextureType())); |
9192 | } |
9193 | |
9194 | void AMDGPUTargetCodeGenInfo::setTargetAttributes( |
9195 | const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const { |
9196 | if (requiresAMDGPUProtectedVisibility(D, GV)) { |
9197 | GV->setVisibility(llvm::GlobalValue::ProtectedVisibility); |
9198 | GV->setDSOLocal(true); |
9199 | } |
9200 | |
9201 | if (GV->isDeclaration()) |
9202 | return; |
9203 | const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); |
9204 | if (!FD) |
9205 | return; |
9206 | |
9207 | llvm::Function *F = cast<llvm::Function>(GV); |
9208 | |
9209 | const auto *ReqdWGS = M.getLangOpts().OpenCL ? |
9210 | FD->getAttr<ReqdWorkGroupSizeAttr>() : nullptr; |
9211 | |
9212 | |
9213 | const bool IsOpenCLKernel = M.getLangOpts().OpenCL && |
9214 | FD->hasAttr<OpenCLKernelAttr>(); |
9215 | const bool IsHIPKernel = M.getLangOpts().HIP && |
9216 | FD->hasAttr<CUDAGlobalAttr>(); |
9217 | if ((IsOpenCLKernel || IsHIPKernel) && |
9218 | (M.getTriple().getOS() == llvm::Triple::AMDHSA)) |
9219 | F->addFnAttr("amdgpu-implicitarg-num-bytes", "56"); |
9220 | |
9221 | if (IsHIPKernel) |
9222 | F->addFnAttr("uniform-work-group-size", "true"); |
9223 | |
9224 | |
9225 | const auto *FlatWGS = FD->getAttr<AMDGPUFlatWorkGroupSizeAttr>(); |
9226 | if (ReqdWGS || FlatWGS) { |
9227 | unsigned Min = 0; |
9228 | unsigned Max = 0; |
9229 | if (FlatWGS) { |
9230 | Min = FlatWGS->getMin() |
9231 | ->EvaluateKnownConstInt(M.getContext()) |
9232 | .getExtValue(); |
9233 | Max = FlatWGS->getMax() |
9234 | ->EvaluateKnownConstInt(M.getContext()) |
9235 | .getExtValue(); |
9236 | } |
9237 | if (ReqdWGS && Min == 0 && Max == 0) |
9238 | Min = Max = ReqdWGS->getXDim() * ReqdWGS->getYDim() * ReqdWGS->getZDim(); |
9239 | |
9240 | if (Min != 0) { |
9241 | assert(Min <= Max && "Min must be less than or equal Max"); |
9242 | |
9243 | std::string AttrVal = llvm::utostr(Min) + "," + llvm::utostr(Max); |
9244 | F->addFnAttr("amdgpu-flat-work-group-size", AttrVal); |
9245 | } else |
9246 | assert(Max == 0 && "Max must be zero"); |
9247 | } else if (IsOpenCLKernel || IsHIPKernel) { |
9248 | |
9249 | |
9250 | const unsigned OpenCLDefaultMaxWorkGroupSize = 256; |
9251 | const unsigned DefaultMaxWorkGroupSize = |
9252 | IsOpenCLKernel ? OpenCLDefaultMaxWorkGroupSize |
9253 | : M.getLangOpts().GPUMaxThreadsPerBlock; |
9254 | std::string AttrVal = |
9255 | std::string("1,") + llvm::utostr(DefaultMaxWorkGroupSize); |
9256 | F->addFnAttr("amdgpu-flat-work-group-size", AttrVal); |
9257 | } |
9258 | |
9259 | if (const auto *Attr = FD->getAttr<AMDGPUWavesPerEUAttr>()) { |
9260 | unsigned Min = |
9261 | Attr->getMin()->EvaluateKnownConstInt(M.getContext()).getExtValue(); |
9262 | unsigned Max = Attr->getMax() ? Attr->getMax() |
9263 | ->EvaluateKnownConstInt(M.getContext()) |
9264 | .getExtValue() |
9265 | : 0; |
9266 | |
9267 | if (Min != 0) { |
9268 | assert((Max == 0 || Min <= Max) && "Min must be less than or equal Max"); |
9269 | |
9270 | std::string AttrVal = llvm::utostr(Min); |
9271 | if (Max != 0) |
9272 | AttrVal = AttrVal + "," + llvm::utostr(Max); |
9273 | F->addFnAttr("amdgpu-waves-per-eu", AttrVal); |
9274 | } else |
9275 | assert(Max == 0 && "Max must be zero"); |
9276 | } |
9277 | |
9278 | if (const auto *Attr = FD->getAttr<AMDGPUNumSGPRAttr>()) { |
9279 | unsigned NumSGPR = Attr->getNumSGPR(); |
9280 | |
9281 | if (NumSGPR != 0) |
9282 | F->addFnAttr("amdgpu-num-sgpr", llvm::utostr(NumSGPR)); |
9283 | } |
9284 | |
9285 | if (const auto *Attr = FD->getAttr<AMDGPUNumVGPRAttr>()) { |
9286 | uint32_t NumVGPR = Attr->getNumVGPR(); |
9287 | |
9288 | if (NumVGPR != 0) |
9289 | F->addFnAttr("amdgpu-num-vgpr", llvm::utostr(NumVGPR)); |
9290 | } |
9291 | |
9292 | if (M.getContext().getTargetInfo().allowAMDGPUUnsafeFPAtomics()) |
9293 | F->addFnAttr("amdgpu-unsafe-fp-atomics", "true"); |
9294 | |
9295 | if (!getABIInfo().getCodeGenOpts().EmitIEEENaNCompliantInsts) |
9296 | F->addFnAttr("amdgpu-ieee", "false"); |
9297 | } |
9298 | |
9299 | unsigned AMDGPUTargetCodeGenInfo::getOpenCLKernelCallingConv() const { |
9300 | return llvm::CallingConv::AMDGPU_KERNEL; |
9301 | } |
9302 | |
9303 | |
9304 | |
9305 | |
9306 | |
9307 | |
9308 | llvm::Constant *AMDGPUTargetCodeGenInfo::getNullPointer( |
9309 | const CodeGen::CodeGenModule &CGM, llvm::PointerType *PT, |
9310 | QualType QT) const { |
9311 | if (CGM.getContext().getTargetNullPointerValue(QT) == 0) |
9312 | return llvm::ConstantPointerNull::get(PT); |
9313 | |
9314 | auto &Ctx = CGM.getContext(); |
9315 | auto NPT = llvm::PointerType::get(PT->getElementType(), |
9316 | Ctx.getTargetAddressSpace(LangAS::opencl_generic)); |
9317 | return llvm::ConstantExpr::getAddrSpaceCast( |
9318 | llvm::ConstantPointerNull::get(NPT), PT); |
9319 | } |
9320 | |
9321 | LangAS |
9322 | AMDGPUTargetCodeGenInfo::getGlobalVarAddressSpace(CodeGenModule &CGM, |
9323 | const VarDecl *D) const { |
9324 | assert(!CGM.getLangOpts().OpenCL && |
9325 | !(CGM.getLangOpts().CUDA && CGM.getLangOpts().CUDAIsDevice) && |
9326 | "Address space agnostic languages only"); |
9327 | LangAS DefaultGlobalAS = getLangASFromTargetAS( |
9328 | CGM.getContext().getTargetAddressSpace(LangAS::opencl_global)); |
9329 | if (!D) |
9330 | return DefaultGlobalAS; |
9331 | |
9332 | LangAS AddrSpace = D->getType().getAddressSpace(); |
9333 | assert(AddrSpace == LangAS::Default || isTargetAddressSpace(AddrSpace)); |
9334 | if (AddrSpace != LangAS::Default) |
9335 | return AddrSpace; |
9336 | |
9337 | if (CGM.isTypeConstant(D->getType(), false)) { |
9338 | if (auto ConstAS = CGM.getTarget().getConstantAddressSpace()) |
9339 | return ConstAS.getValue(); |
9340 | } |
9341 | return DefaultGlobalAS; |
9342 | } |
9343 | |
9344 | llvm::SyncScope::ID |
9345 | AMDGPUTargetCodeGenInfo::getLLVMSyncScopeID(const LangOptions &LangOpts, |
9346 | SyncScope Scope, |
9347 | llvm::AtomicOrdering Ordering, |
9348 | llvm::LLVMContext &Ctx) const { |
9349 | std::string Name; |
9350 | switch (Scope) { |
9351 | case SyncScope::OpenCLWorkGroup: |
9352 | Name = "workgroup"; |
9353 | break; |
9354 | case SyncScope::OpenCLDevice: |
9355 | Name = "agent"; |
9356 | break; |
9357 | case SyncScope::OpenCLAllSVMDevices: |
9358 | Name = ""; |
9359 | break; |
9360 | case SyncScope::OpenCLSubGroup: |
9361 | Name = "wavefront"; |
9362 | } |
9363 | |
9364 | if (Ordering != llvm::AtomicOrdering::SequentiallyConsistent) { |
9365 | if (!Name.empty()) |
9366 | Name = Twine(Twine(Name) + Twine("-")).str(); |
9367 | |
9368 | Name = Twine(Twine(Name) + Twine("one-as")).str(); |
9369 | } |
9370 | |
9371 | return Ctx.getOrInsertSyncScopeID(Name); |
9372 | } |
9373 | |
9374 | bool AMDGPUTargetCodeGenInfo::shouldEmitStaticExternCAliases() const { |
9375 | return false; |
9376 | } |
9377 | |
9378 | void AMDGPUTargetCodeGenInfo::setCUDAKernelCallingConvention( |
9379 | const FunctionType *&FT) const { |
9380 | FT = getABIInfo().getContext().adjustFunctionType( |
9381 | FT, FT->getExtInfo().withCallingConv(CC_OpenCLKernel)); |
9382 | } |
9383 | |
9384 | |
9385 | |
9386 | |
9387 | |
9388 | |
9389 | |
9390 | namespace { |
9391 | class SparcV8ABIInfo : public DefaultABIInfo { |
9392 | public: |
9393 | SparcV8ABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
9394 | |
9395 | private: |
9396 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
9397 | void computeInfo(CGFunctionInfo &FI) const override; |
9398 | }; |
9399 | } |
9400 | |
9401 | |
9402 | ABIArgInfo |
9403 | SparcV8ABIInfo::classifyReturnType(QualType Ty) const { |
9404 | if (Ty->isAnyComplexType()) { |
9405 | return ABIArgInfo::getDirect(); |
9406 | } |
9407 | else { |
9408 | return DefaultABIInfo::classifyReturnType(Ty); |
9409 | } |
9410 | } |
9411 | |
9412 | void SparcV8ABIInfo::computeInfo(CGFunctionInfo &FI) const { |
9413 | |
9414 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
9415 | for (auto &Arg : FI.arguments()) |
9416 | Arg.info = classifyArgumentType(Arg.type); |
9417 | } |
9418 | |
9419 | namespace { |
9420 | class SparcV8TargetCodeGenInfo : public TargetCodeGenInfo { |
9421 | public: |
9422 | SparcV8TargetCodeGenInfo(CodeGenTypes &CGT) |
9423 | : TargetCodeGenInfo(std::make_unique<SparcV8ABIInfo>(CGT)) {} |
9424 | }; |
9425 | } |
9426 | |
9427 | |
9428 | |
9429 | |
9430 | |
9431 | |
9432 | |
9433 | |
9434 | |
9435 | |
9436 | |
9437 | |
9438 | |
9439 | |
9440 | |
9441 | |
9442 | |
9443 | |
9444 | |
9445 | |
9446 | |
9447 | |
9448 | |
9449 | |
9450 | |
9451 | |
9452 | |
9453 | namespace { |
9454 | class SparcV9ABIInfo : public ABIInfo { |
9455 | public: |
9456 | SparcV9ABIInfo(CodeGenTypes &CGT) : ABIInfo(CGT) {} |
9457 | |
9458 | private: |
9459 | ABIArgInfo classifyType(QualType RetTy, unsigned SizeLimit) const; |
9460 | void computeInfo(CGFunctionInfo &FI) const override; |
9461 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
9462 | QualType Ty) const override; |
9463 | |
9464 | |
9465 | |
9466 | |
9467 | |
9468 | |
9469 | |
9470 | |
9471 | |
9472 | |
9473 | |
9474 | |
9475 | struct CoerceBuilder { |
9476 | llvm::LLVMContext &Context; |
9477 | const llvm::DataLayout &DL; |
9478 | SmallVector<llvm::Type*, 8> Elems; |
9479 | uint64_t Size; |
9480 | bool InReg; |
9481 | |
9482 | CoerceBuilder(llvm::LLVMContext &c, const llvm::DataLayout &dl) |
9483 | : Context(c), DL(dl), Size(0), InReg(false) {} |
9484 | |
9485 | |
9486 | void pad(uint64_t ToSize) { |
9487 | assert(ToSize >= Size && "Cannot remove elements"); |
9488 | if (ToSize == Size) |
9489 | return; |
9490 | |
9491 | |
9492 | uint64_t Aligned = llvm::alignTo(Size, 64); |
9493 | if (Aligned > Size && Aligned <= ToSize) { |
9494 | Elems.push_back(llvm::IntegerType::get(Context, Aligned - Size)); |
9495 | Size = Aligned; |
9496 | } |
9497 | |
9498 | |
9499 | while (Size + 64 <= ToSize) { |
9500 | Elems.push_back(llvm::Type::getInt64Ty(Context)); |
9501 | Size += 64; |
9502 | } |
9503 | |
9504 | |
9505 | if (Size < ToSize) { |
9506 | Elems.push_back(llvm::IntegerType::get(Context, ToSize - Size)); |
9507 | Size = ToSize; |
9508 | } |
9509 | } |
9510 | |
9511 | |
9512 | void addFloat(uint64_t Offset, llvm::Type *Ty, unsigned Bits) { |
9513 | |
9514 | if (Offset % Bits) |
9515 | return; |
9516 | |
9517 | if (Bits < 64) |
9518 | InReg = true; |
9519 | pad(Offset); |
9520 | Elems.push_back(Ty); |
9521 | Size = Offset + Bits; |
9522 | } |
9523 | |
9524 | |
9525 | void addStruct(uint64_t Offset, llvm::StructType *StrTy) { |
9526 | const llvm::StructLayout *Layout = DL.getStructLayout(StrTy); |
9527 | for (unsigned i = 0, e = StrTy->getNumElements(); i != e; ++i) { |
9528 | llvm::Type *ElemTy = StrTy->getElementType(i); |
9529 | uint64_t ElemOffset = Offset + Layout->getElementOffsetInBits(i); |
9530 | switch (ElemTy->getTypeID()) { |
9531 | case llvm::Type::StructTyID: |
9532 | addStruct(ElemOffset, cast<llvm::StructType>(ElemTy)); |
9533 | break; |
9534 | case llvm::Type::FloatTyID: |
9535 | addFloat(ElemOffset, ElemTy, 32); |
9536 | break; |
9537 | case llvm::Type::DoubleTyID: |
9538 | addFloat(ElemOffset, ElemTy, 64); |
9539 | break; |
9540 | case llvm::Type::FP128TyID: |
9541 | addFloat(ElemOffset, ElemTy, 128); |
9542 | break; |
9543 | case llvm::Type::PointerTyID: |
9544 | if (ElemOffset % 64 == 0) { |
9545 | pad(ElemOffset); |
9546 | Elems.push_back(ElemTy); |
9547 | Size += 64; |
9548 | } |
9549 | break; |
9550 | default: |
9551 | break; |
9552 | } |
9553 | } |
9554 | } |
9555 | |
9556 | |
9557 | bool isUsableType(llvm::StructType *Ty) const { |
9558 | return llvm::makeArrayRef(Elems) == Ty->elements(); |
9559 | } |
9560 | |
9561 | |
9562 | llvm::Type *getType() const { |
9563 | if (Elems.size() == 1) |
9564 | return Elems.front(); |
9565 | else |
9566 | return llvm::StructType::get(Context, Elems); |
9567 | } |
9568 | }; |
9569 | }; |
9570 | } |
9571 | |
9572 | ABIArgInfo |
9573 | SparcV9ABIInfo::classifyType(QualType Ty, unsigned SizeLimit) const { |
9574 | if (Ty->isVoidType()) |
9575 | return ABIArgInfo::getIgnore(); |
9576 | |
9577 | uint64_t Size = getContext().getTypeSize(Ty); |
9578 | |
9579 | |
9580 | |
9581 | if (Size > SizeLimit) |
9582 | return getNaturalAlignIndirect(Ty, false); |
9583 | |
9584 | |
9585 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
9586 | Ty = EnumTy->getDecl()->getIntegerType(); |
9587 | |
9588 | |
9589 | if (Size < 64 && Ty->isIntegerType()) |
9590 | return ABIArgInfo::getExtend(Ty); |
9591 | |
9592 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
9593 | if (EIT->getNumBits() < 64) |
9594 | return ABIArgInfo::getExtend(Ty); |
9595 | |
9596 | |
9597 | if (!isAggregateTypeForABI(Ty)) |
9598 | return ABIArgInfo::getDirect(); |
9599 | |
9600 | |
9601 | |
9602 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) |
9603 | return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory); |
9604 | |
9605 | |
9606 | |
9607 | llvm::StructType *StrTy = dyn_cast<llvm::StructType>(CGT.ConvertType(Ty)); |
9608 | if (!StrTy) |
9609 | return ABIArgInfo::getDirect(); |
9610 | |
9611 | CoerceBuilder CB(getVMContext(), getDataLayout()); |
9612 | CB.addStruct(0, StrTy); |
9613 | CB.pad(llvm::alignTo(CB.DL.getTypeSizeInBits(StrTy), 64)); |
9614 | |
9615 | |
9616 | llvm::Type *CoerceTy = CB.isUsableType(StrTy) ? StrTy : CB.getType(); |
9617 | |
9618 | if (CB.InReg) |
9619 | return ABIArgInfo::getDirectInReg(CoerceTy); |
9620 | else |
9621 | return ABIArgInfo::getDirect(CoerceTy); |
9622 | } |
9623 | |
9624 | Address SparcV9ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
9625 | QualType Ty) const { |
9626 | ABIArgInfo AI = classifyType(Ty, 16 * 8); |
9627 | llvm::Type *ArgTy = CGT.ConvertType(Ty); |
9628 | if (AI.canHaveCoerceToType() && !AI.getCoerceToType()) |
9629 | AI.setCoerceToType(ArgTy); |
9630 | |
9631 | CharUnits SlotSize = CharUnits::fromQuantity(8); |
9632 | |
9633 | CGBuilderTy &Builder = CGF.Builder; |
9634 | Address Addr(Builder.CreateLoad(VAListAddr, "ap.cur"), SlotSize); |
9635 | llvm::Type *ArgPtrTy = llvm::PointerType::getUnqual(ArgTy); |
9636 | |
9637 | auto TypeInfo = getContext().getTypeInfoInChars(Ty); |
9638 | |
9639 | Address ArgAddr = Address::invalid(); |
9640 | CharUnits Stride; |
9641 | switch (AI.getKind()) { |
9642 | case ABIArgInfo::Expand: |
9643 | case ABIArgInfo::CoerceAndExpand: |
9644 | case ABIArgInfo::InAlloca: |
9645 | llvm_unreachable("Unsupported ABI kind for va_arg"); |
9646 | |
9647 | case ABIArgInfo::Extend: { |
9648 | Stride = SlotSize; |
9649 | CharUnits Offset = SlotSize - TypeInfo.Width; |
9650 | ArgAddr = Builder.CreateConstInBoundsByteGEP(Addr, Offset, "extend"); |
9651 | break; |
9652 | } |
9653 | |
9654 | case ABIArgInfo::Direct: { |
9655 | auto AllocSize = getDataLayout().getTypeAllocSize(AI.getCoerceToType()); |
9656 | Stride = CharUnits::fromQuantity(AllocSize).alignTo(SlotSize); |
9657 | ArgAddr = Addr; |
9658 | break; |
9659 | } |
9660 | |
9661 | case ABIArgInfo::Indirect: |
9662 | case ABIArgInfo::IndirectAliased: |
9663 | Stride = SlotSize; |
9664 | ArgAddr = Builder.CreateElementBitCast(Addr, ArgPtrTy, "indirect"); |
9665 | ArgAddr = Address(Builder.CreateLoad(ArgAddr, "indirect.arg"), |
9666 | TypeInfo.Align); |
9667 | break; |
9668 | |
9669 | case ABIArgInfo::Ignore: |
9670 | return Address(llvm::UndefValue::get(ArgPtrTy), TypeInfo.Align); |
9671 | } |
9672 | |
9673 | |
9674 | Address NextPtr = Builder.CreateConstInBoundsByteGEP(Addr, Stride, "ap.next"); |
9675 | Builder.CreateStore(NextPtr.getPointer(), VAListAddr); |
9676 | |
9677 | return Builder.CreateBitCast(ArgAddr, ArgPtrTy, "arg.addr"); |
9678 | } |
9679 | |
9680 | void SparcV9ABIInfo::computeInfo(CGFunctionInfo &FI) const { |
9681 | FI.getReturnInfo() = classifyType(FI.getReturnType(), 32 * 8); |
9682 | for (auto &I : FI.arguments()) |
9683 | I.info = classifyType(I.type, 16 * 8); |
9684 | } |
9685 | |
9686 | namespace { |
9687 | class SparcV9TargetCodeGenInfo : public TargetCodeGenInfo { |
9688 | public: |
9689 | SparcV9TargetCodeGenInfo(CodeGenTypes &CGT) |
9690 | : TargetCodeGenInfo(std::make_unique<SparcV9ABIInfo>(CGT)) {} |
9691 | |
9692 | int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override { |
9693 | return 14; |
9694 | } |
9695 | |
9696 | bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
9697 | llvm::Value *Address) const override; |
9698 | }; |
9699 | } |
9700 | |
9701 | bool |
9702 | SparcV9TargetCodeGenInfo::initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, |
9703 | llvm::Value *Address) const { |
9704 | |
9705 | |
9706 | |
9707 | CodeGen::CGBuilderTy &Builder = CGF.Builder; |
9708 | |
9709 | llvm::IntegerType *i8 = CGF.Int8Ty; |
9710 | llvm::Value *Four8 = llvm::ConstantInt::get(i8, 4); |
9711 | llvm::Value *Eight8 = llvm::ConstantInt::get(i8, 8); |
9712 | |
9713 | |
9714 | AssignToArrayRange(Builder, Address, Eight8, 0, 31); |
9715 | |
9716 | |
9717 | AssignToArrayRange(Builder, Address, Four8, 32, 63); |
9718 | |
9719 | |
9720 | |
9721 | |
9722 | |
9723 | |
9724 | |
9725 | |
9726 | |
9727 | AssignToArrayRange(Builder, Address, Eight8, 64, 71); |
9728 | |
9729 | |
9730 | AssignToArrayRange(Builder, Address, Eight8, 72, 87); |
9731 | |
9732 | return false; |
9733 | } |
9734 | |
9735 | |
9736 | namespace { |
9737 | |
9738 | class ARCABIInfo : public DefaultABIInfo { |
9739 | public: |
9740 | using DefaultABIInfo::DefaultABIInfo; |
9741 | |
9742 | private: |
9743 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
9744 | QualType Ty) const override; |
9745 | |
9746 | void updateState(const ABIArgInfo &Info, QualType Ty, CCState &State) const { |
9747 | if (!State.FreeRegs) |
9748 | return; |
9749 | if (Info.isIndirect() && Info.getInReg()) |
9750 | State.FreeRegs--; |
9751 | else if (Info.isDirect() && Info.getInReg()) { |
9752 | unsigned sz = (getContext().getTypeSize(Ty) + 31) / 32; |
9753 | if (sz < State.FreeRegs) |
9754 | State.FreeRegs -= sz; |
9755 | else |
9756 | State.FreeRegs = 0; |
9757 | } |
9758 | } |
9759 | |
9760 | void computeInfo(CGFunctionInfo &FI) const override { |
9761 | CCState State(FI); |
9762 | |
9763 | State.FreeRegs = 8; |
9764 | |
9765 | if (!getCXXABI().classifyReturnType(FI)) |
9766 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
9767 | updateState(FI.getReturnInfo(), FI.getReturnType(), State); |
9768 | for (auto &I : FI.arguments()) { |
9769 | I.info = classifyArgumentType(I.type, State.FreeRegs); |
9770 | updateState(I.info, I.type, State); |
9771 | } |
9772 | } |
9773 | |
9774 | ABIArgInfo getIndirectByRef(QualType Ty, bool HasFreeRegs) const; |
9775 | ABIArgInfo getIndirectByValue(QualType Ty) const; |
9776 | ABIArgInfo classifyArgumentType(QualType Ty, uint8_t FreeRegs) const; |
9777 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
9778 | }; |
9779 | |
9780 | class ARCTargetCodeGenInfo : public TargetCodeGenInfo { |
9781 | public: |
9782 | ARCTargetCodeGenInfo(CodeGenTypes &CGT) |
9783 | : TargetCodeGenInfo(std::make_unique<ARCABIInfo>(CGT)) {} |
9784 | }; |
9785 | |
9786 | |
9787 | ABIArgInfo ARCABIInfo::getIndirectByRef(QualType Ty, bool HasFreeRegs) const { |
9788 | return HasFreeRegs ? getNaturalAlignIndirectInReg(Ty) : |
9789 | getNaturalAlignIndirect(Ty, false); |
9790 | } |
9791 | |
9792 | ABIArgInfo ARCABIInfo::getIndirectByValue(QualType Ty) const { |
9793 | |
9794 | const unsigned MinABIStackAlignInBytes = 4; |
9795 | unsigned TypeAlign = getContext().getTypeAlign(Ty) / 8; |
9796 | return ABIArgInfo::getIndirect(CharUnits::fromQuantity(4), true, |
9797 | TypeAlign > MinABIStackAlignInBytes); |
9798 | } |
9799 | |
9800 | Address ARCABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
9801 | QualType Ty) const { |
9802 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, false, |
9803 | getContext().getTypeInfoInChars(Ty), |
9804 | CharUnits::fromQuantity(4), true); |
9805 | } |
9806 | |
9807 | ABIArgInfo ARCABIInfo::classifyArgumentType(QualType Ty, |
9808 | uint8_t FreeRegs) const { |
9809 | |
9810 | const RecordType *RT = Ty->getAs<RecordType>(); |
9811 | if (RT) { |
9812 | CGCXXABI::RecordArgABI RAA = getRecordArgABI(RT, getCXXABI()); |
9813 | if (RAA == CGCXXABI::RAA_Indirect) |
9814 | return getIndirectByRef(Ty, FreeRegs > 0); |
9815 | |
9816 | if (RAA == CGCXXABI::RAA_DirectInMemory) |
9817 | return getIndirectByValue(Ty); |
9818 | } |
9819 | |
9820 | |
9821 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
9822 | Ty = EnumTy->getDecl()->getIntegerType(); |
9823 | |
9824 | auto SizeInRegs = llvm::alignTo(getContext().getTypeSize(Ty), 32) / 32; |
9825 | |
9826 | if (isAggregateTypeForABI(Ty)) { |
9827 | |
9828 | if (RT && RT->getDecl()->hasFlexibleArrayMember()) |
9829 | return getIndirectByValue(Ty); |
9830 | |
9831 | |
9832 | if (isEmptyRecord(getContext(), Ty, true)) |
9833 | return ABIArgInfo::getIgnore(); |
9834 | |
9835 | llvm::LLVMContext &LLVMContext = getVMContext(); |
9836 | |
9837 | llvm::IntegerType *Int32 = llvm::Type::getInt32Ty(LLVMContext); |
9838 | SmallVector<llvm::Type *, 3> Elements(SizeInRegs, Int32); |
9839 | llvm::Type *Result = llvm::StructType::get(LLVMContext, Elements); |
9840 | |
9841 | return FreeRegs >= SizeInRegs ? |
9842 | ABIArgInfo::getDirectInReg(Result) : |
9843 | ABIArgInfo::getDirect(Result, 0, nullptr, false); |
9844 | } |
9845 | |
9846 | if (const auto *EIT = Ty->getAs<ExtIntType>()) |
9847 | if (EIT->getNumBits() > 64) |
9848 | return getIndirectByValue(Ty); |
9849 | |
9850 | return isPromotableIntegerTypeForABI(Ty) |
9851 | ? (FreeRegs >= SizeInRegs ? ABIArgInfo::getExtendInReg(Ty) |
9852 | : ABIArgInfo::getExtend(Ty)) |
9853 | : (FreeRegs >= SizeInRegs ? ABIArgInfo::getDirectInReg() |
9854 | : ABIArgInfo::getDirect()); |
9855 | } |
9856 | |
9857 | ABIArgInfo ARCABIInfo::classifyReturnType(QualType RetTy) const { |
9858 | if (RetTy->isAnyComplexType()) |
9859 | return ABIArgInfo::getDirectInReg(); |
9860 | |
9861 | |
9862 | auto RetSize = llvm::alignTo(getContext().getTypeSize(RetTy), 32) / 32; |
9863 | if (RetSize > 4) |
9864 | return getIndirectByRef(RetTy, true); |
9865 | |
9866 | return DefaultABIInfo::classifyReturnType(RetTy); |
9867 | } |
9868 | |
9869 | } |
9870 | |
9871 | |
9872 | |
9873 | |
9874 | |
9875 | namespace { |
9876 | |
9877 | |
9878 | |
9879 | typedef llvm::SmallString<128> SmallStringEnc; |
9880 | |
9881 | |
9882 | |
9883 | |
9884 | |
9885 | |
9886 | |
9887 | |
9888 | |
9889 | |
9890 | |
9891 | |
9892 | |
9893 | |
9894 | |
9895 | |
9896 | |
9897 | |
9898 | |
9899 | |
9900 | |
9901 | |
9902 | |
9903 | |
9904 | |
9905 | |
9906 | |
9907 | |
9908 | |
9909 | |
9910 | |
9911 | |
9912 | |
9913 | |
9914 | |
9915 | |
9916 | |
9917 | |
9918 | |
9919 | |
9920 | |
9921 | |
9922 | |
9923 | |
9924 | |
9925 | |
9926 | |
9927 | |
9928 | |
9929 | |
9930 | |
9931 | |
9932 | |
9933 | |
9934 | |
9935 | class TypeStringCache { |
9936 | enum Status {NonRecursive, Recursive, Incomplete, IncompleteUsed}; |
9937 | struct Entry { |
9938 | std::string Str; |
9939 | enum Status State; |
9940 | std::string Swapped; |
9941 | |
9942 | }; |
9943 | std::map<const IdentifierInfo *, struct Entry> Map; |
9944 | unsigned IncompleteCount; |
9945 | unsigned IncompleteUsedCount; |
9946 | public: |
9947 | TypeStringCache() : IncompleteCount(0), IncompleteUsedCount(0) {} |
9948 | void addIncomplete(const IdentifierInfo *ID, std::string StubEnc); |
9949 | bool removeIncomplete(const IdentifierInfo *ID); |
9950 | void addIfComplete(const IdentifierInfo *ID, StringRef Str, |
9951 | bool IsRecursive); |
9952 | StringRef lookupStr(const IdentifierInfo *ID); |
9953 | }; |
9954 | |
9955 | |
9956 | |
9957 | class FieldEncoding { |
9958 | bool HasName; |
9959 | std::string Enc; |
9960 | public: |
9961 | FieldEncoding(bool b, SmallStringEnc &e) : HasName(b), Enc(e.c_str()) {} |
9962 | StringRef str() { return Enc; } |
9963 | bool operator<(const FieldEncoding &rhs) const { |
9964 | if (HasName != rhs.HasName) return HasName; |
9965 | return Enc < rhs.Enc; |
9966 | } |
9967 | }; |
9968 | |
9969 | class XCoreABIInfo : public DefaultABIInfo { |
9970 | public: |
9971 | XCoreABIInfo(CodeGen::CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
9972 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
9973 | QualType Ty) const override; |
9974 | }; |
9975 | |
9976 | class XCoreTargetCodeGenInfo : public TargetCodeGenInfo { |
9977 | mutable TypeStringCache TSC; |
9978 | void emitTargetMD(const Decl *D, llvm::GlobalValue *GV, |
9979 | const CodeGen::CodeGenModule &M) const; |
9980 | |
9981 | public: |
9982 | XCoreTargetCodeGenInfo(CodeGenTypes &CGT) |
9983 | : TargetCodeGenInfo(std::make_unique<XCoreABIInfo>(CGT)) {} |
9984 | void emitTargetMetadata(CodeGen::CodeGenModule &CGM, |
9985 | const llvm::MapVector<GlobalDecl, StringRef> |
9986 | &MangledDeclNames) const override; |
9987 | }; |
9988 | |
9989 | } |
9990 | |
9991 | |
9992 | |
9993 | Address XCoreABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
9994 | QualType Ty) const { |
9995 | CGBuilderTy &Builder = CGF.Builder; |
9996 | |
9997 | |
9998 | CharUnits SlotSize = CharUnits::fromQuantity(4); |
9999 | Address AP(Builder.CreateLoad(VAListAddr), SlotSize); |
10000 | |
10001 | |
10002 | ABIArgInfo AI = classifyArgumentType(Ty); |
10003 | CharUnits TypeAlign = getContext().getTypeAlignInChars(Ty); |
10004 | llvm::Type *ArgTy = CGT.ConvertType(Ty); |
10005 | if (AI.canHaveCoerceToType() && !AI.getCoerceToType()) |
10006 | AI.setCoerceToType(ArgTy); |
10007 | llvm::Type *ArgPtrTy = llvm::PointerType::getUnqual(ArgTy); |
10008 | |
10009 | Address Val = Address::invalid(); |
10010 | CharUnits ArgSize = CharUnits::Zero(); |
10011 | switch (AI.getKind()) { |
10012 | case ABIArgInfo::Expand: |
10013 | case ABIArgInfo::CoerceAndExpand: |
10014 | case ABIArgInfo::InAlloca: |
10015 | llvm_unreachable("Unsupported ABI kind for va_arg"); |
10016 | case ABIArgInfo::Ignore: |
10017 | Val = Address(llvm::UndefValue::get(ArgPtrTy), TypeAlign); |
10018 | ArgSize = CharUnits::Zero(); |
10019 | break; |
10020 | case ABIArgInfo::Extend: |
10021 | case ABIArgInfo::Direct: |
10022 | Val = Builder.CreateBitCast(AP, ArgPtrTy); |
10023 | ArgSize = CharUnits::fromQuantity( |
10024 | getDataLayout().getTypeAllocSize(AI.getCoerceToType())); |
10025 | ArgSize = ArgSize.alignTo(SlotSize); |
10026 | break; |
10027 | case ABIArgInfo::Indirect: |
10028 | case ABIArgInfo::IndirectAliased: |
10029 | Val = Builder.CreateElementBitCast(AP, ArgPtrTy); |
10030 | Val = Address(Builder.CreateLoad(Val), TypeAlign); |
10031 | ArgSize = SlotSize; |
10032 | break; |
10033 | } |
10034 | |
10035 | |
10036 | if (!ArgSize.isZero()) { |
10037 | Address APN = Builder.CreateConstInBoundsByteGEP(AP, ArgSize); |
10038 | Builder.CreateStore(APN.getPointer(), VAListAddr); |
10039 | } |
10040 | |
10041 | return Val; |
10042 | } |
10043 | |
10044 | |
10045 | |
10046 | |
10047 | |
10048 | |
10049 | void TypeStringCache::addIncomplete(const IdentifierInfo *ID, |
10050 | std::string StubEnc) { |
10051 | if (!ID) |
10052 | return; |
10053 | Entry &E = Map[ID]; |
10054 | assert( (E.Str.empty() || E.State == Recursive) && |
10055 | "Incorrectly use of addIncomplete"); |
10056 | assert(!StubEnc.empty() && "Passing an empty string to addIncomplete()"); |
10057 | E.Swapped.swap(E.Str); |
10058 | E.Str.swap(StubEnc); |
10059 | E.State = Incomplete; |
10060 | ++IncompleteCount; |
10061 | } |
10062 | |
10063 | |
10064 | |
10065 | |
10066 | |
10067 | bool TypeStringCache::removeIncomplete(const IdentifierInfo *ID) { |
10068 | if (!ID) |
10069 | return false; |
10070 | auto I = Map.find(ID); |
10071 | assert(I != Map.end() && "Entry not present"); |
10072 | Entry &E = I->second; |
10073 | assert( (E.State == Incomplete || |
10074 | E.State == IncompleteUsed) && |
10075 | "Entry must be an incomplete type"); |
10076 | bool IsRecursive = false; |
10077 | if (E.State == IncompleteUsed) { |
10078 | |
10079 | IsRecursive = true; |
10080 | --IncompleteUsedCount; |
10081 | } |
10082 | if (E.Swapped.empty()) |
10083 | Map.erase(I); |
10084 | else { |
10085 | |
10086 | E.Swapped.swap(E.Str); |
10087 | E.Swapped.clear(); |
10088 | E.State = Recursive; |
10089 | } |
10090 | --IncompleteCount; |
10091 | return IsRecursive; |
10092 | } |
10093 | |
10094 | |
10095 | |
10096 | void TypeStringCache::addIfComplete(const IdentifierInfo *ID, StringRef Str, |
10097 | bool IsRecursive) { |
10098 | if (!ID || IncompleteUsedCount) |
10099 | return; |
10100 | Entry &E = Map[ID]; |
10101 | if (IsRecursive && !E.Str.empty()) { |
10102 | assert(E.State==Recursive && E.Str.size() == Str.size() && |
10103 | "This is not the same Recursive entry"); |
10104 | |
10105 | |
10106 | |
10107 | return; |
10108 | } |
10109 | assert(E.Str.empty() && "Entry already present"); |
10110 | E.Str = Str.str(); |
10111 | E.State = IsRecursive? Recursive : NonRecursive; |
10112 | } |
10113 | |
10114 | |
10115 | |
10116 | |
10117 | StringRef TypeStringCache::lookupStr(const IdentifierInfo *ID) { |
10118 | if (!ID) |
10119 | return StringRef(); |
10120 | auto I = Map.find(ID); |
10121 | if (I == Map.end()) |
10122 | return StringRef(); |
10123 | Entry &E = I->second; |
10124 | if (E.State == Recursive && IncompleteCount) |
10125 | return StringRef(); |
10126 | |
10127 | if (E.State == Incomplete) { |
10128 | |
10129 | E.State = IncompleteUsed; |
10130 | ++IncompleteUsedCount; |
10131 | } |
10132 | return E.Str; |
10133 | } |
10134 | |
10135 | |
10136 | |
10137 | |
10138 | |
10139 | |
10140 | |
10141 | |
10142 | |
10143 | |
10144 | |
10145 | |
10146 | |
10147 | static bool getTypeString(SmallStringEnc &Enc, const Decl *D, |
10148 | const CodeGen::CodeGenModule &CGM, |
10149 | TypeStringCache &TSC); |
10150 | |
10151 | |
10152 | void XCoreTargetCodeGenInfo::emitTargetMD( |
10153 | const Decl *D, llvm::GlobalValue *GV, |
10154 | const CodeGen::CodeGenModule &CGM) const { |
10155 | SmallStringEnc Enc; |
10156 | if (getTypeString(Enc, D, CGM, TSC)) { |
10157 | llvm::LLVMContext &Ctx = CGM.getModule().getContext(); |
10158 | llvm::Metadata *MDVals[] = {llvm::ConstantAsMetadata::get(GV), |
10159 | llvm::MDString::get(Ctx, Enc.str())}; |
10160 | llvm::NamedMDNode *MD = |
10161 | CGM.getModule().getOrInsertNamedMetadata("xcore.typestrings"); |
10162 | MD->addOperand(llvm::MDNode::get(Ctx, MDVals)); |
10163 | } |
10164 | } |
10165 | |
10166 | void XCoreTargetCodeGenInfo::emitTargetMetadata( |
10167 | CodeGen::CodeGenModule &CGM, |
10168 | const llvm::MapVector<GlobalDecl, StringRef> &MangledDeclNames) const { |
10169 | |
10170 | |
10171 | |
10172 | for (unsigned I = 0; I != MangledDeclNames.size(); ++I) { |
10173 | auto Val = *(MangledDeclNames.begin() + I); |
10174 | llvm::GlobalValue *GV = CGM.GetGlobalValue(Val.second); |
10175 | if (GV) { |
10176 | const Decl *D = Val.first.getDecl()->getMostRecentDecl(); |
10177 | emitTargetMD(D, GV, CGM); |
10178 | } |
10179 | } |
10180 | } |
10181 | |
10182 | |
10183 | |
10184 | |
10185 | namespace { |
10186 | class SPIRABIInfo : public DefaultABIInfo { |
10187 | public: |
10188 | SPIRABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) { setCCs(); } |
10189 | |
10190 | private: |
10191 | void setCCs(); |
10192 | }; |
10193 | } |
10194 | namespace { |
10195 | class SPIRTargetCodeGenInfo : public TargetCodeGenInfo { |
10196 | public: |
10197 | SPIRTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT) |
10198 | : TargetCodeGenInfo(std::make_unique<SPIRABIInfo>(CGT)) {} |
10199 | |
10200 | LangAS getASTAllocaAddressSpace() const override { |
10201 | return getLangASFromTargetAS( |
10202 | getABIInfo().getDataLayout().getAllocaAddrSpace()); |
10203 | } |
10204 | |
10205 | unsigned getOpenCLKernelCallingConv() const override; |
10206 | }; |
10207 | |
10208 | } |
10209 | void SPIRABIInfo::setCCs() { |
10210 | assert(getRuntimeCC() == llvm::CallingConv::C); |
10211 | RuntimeCC = llvm::CallingConv::SPIR_FUNC; |
10212 | } |
10213 | |
10214 | namespace clang { |
10215 | namespace CodeGen { |
10216 | void computeSPIRKernelABIInfo(CodeGenModule &CGM, CGFunctionInfo &FI) { |
10217 | DefaultABIInfo SPIRABI(CGM.getTypes()); |
10218 | SPIRABI.computeInfo(FI); |
10219 | } |
10220 | } |
10221 | } |
10222 | |
10223 | unsigned SPIRTargetCodeGenInfo::getOpenCLKernelCallingConv() const { |
10224 | return llvm::CallingConv::SPIR_KERNEL; |
10225 | } |
10226 | |
10227 | static bool appendType(SmallStringEnc &Enc, QualType QType, |
10228 | const CodeGen::CodeGenModule &CGM, |
10229 | TypeStringCache &TSC); |
10230 | |
10231 | |
10232 | |
10233 | |
10234 | static bool extractFieldType(SmallVectorImpl<FieldEncoding> &FE, |
10235 | const RecordDecl *RD, |
10236 | const CodeGen::CodeGenModule &CGM, |
10237 | TypeStringCache &TSC) { |
10238 | for (const auto *Field : RD->fields()) { |
10239 | SmallStringEnc Enc; |
10240 | Enc += "m("; |
10241 | Enc += Field->getName(); |
10242 | Enc += "){"; |
10243 | if (Field->isBitField()) { |
10244 | Enc += "b("; |
10245 | llvm::raw_svector_ostream OS(Enc); |
10246 | OS << Field->getBitWidthValue(CGM.getContext()); |
10247 | Enc += ':'; |
10248 | } |
10249 | if (!appendType(Enc, Field->getType(), CGM, TSC)) |
10250 | return false; |
10251 | if (Field->isBitField()) |
10252 | Enc += ')'; |
10253 | Enc += '}'; |
10254 | FE.emplace_back(!Field->getName().empty(), Enc); |
10255 | } |
10256 | return true; |
10257 | } |
10258 | |
10259 | |
10260 | |
10261 | |
10262 | static bool appendRecordType(SmallStringEnc &Enc, const RecordType *RT, |
10263 | const CodeGen::CodeGenModule &CGM, |
10264 | TypeStringCache &TSC, const IdentifierInfo *ID) { |
10265 | |
10266 | StringRef TypeString = TSC.lookupStr(ID); |
10267 | if (!TypeString.empty()) { |
10268 | Enc += TypeString; |
10269 | return true; |
10270 | } |
10271 | |
10272 | |
10273 | size_t Start = Enc.size(); |
10274 | Enc += (RT->isUnionType()? 'u' : 's'); |
10275 | Enc += '('; |
10276 | if (ID) |
10277 | Enc += ID->getName(); |
10278 | Enc += "){"; |
10279 | |
10280 | |
10281 | bool IsRecursive = false; |
10282 | const RecordDecl *RD = RT->getDecl()->getDefinition(); |
10283 | if (RD && !RD->field_empty()) { |
10284 | |
10285 | |
10286 | |
10287 | SmallVector<FieldEncoding, 16> FE; |
10288 | std::string StubEnc(Enc.substr(Start).str()); |
10289 | StubEnc += '}'; |
10290 | TSC.addIncomplete(ID, std::move(StubEnc)); |
10291 | if (!extractFieldType(FE, RD, CGM, TSC)) { |
10292 | (void) TSC.removeIncomplete(ID); |
10293 | return false; |
10294 | } |
10295 | IsRecursive = TSC.removeIncomplete(ID); |
10296 | |
10297 | |
10298 | if (RT->isUnionType()) |
10299 | llvm::sort(FE); |
10300 | |
10301 | unsigned E = FE.size(); |
10302 | for (unsigned I = 0; I != E; ++I) { |
10303 | if (I) |
10304 | Enc += ','; |
10305 | Enc += FE[I].str(); |
10306 | } |
10307 | } |
10308 | Enc += '}'; |
10309 | TSC.addIfComplete(ID, Enc.substr(Start), IsRecursive); |
10310 | return true; |
10311 | } |
10312 | |
10313 | |
10314 | static bool appendEnumType(SmallStringEnc &Enc, const EnumType *ET, |
10315 | TypeStringCache &TSC, |
10316 | const IdentifierInfo *ID) { |
10317 | |
10318 | StringRef TypeString = TSC.lookupStr(ID); |
10319 | if (!TypeString.empty()) { |
10320 | Enc += TypeString; |
10321 | return true; |
10322 | } |
10323 | |
10324 | size_t Start = Enc.size(); |
10325 | Enc += "e("; |
10326 | if (ID) |
10327 | Enc += ID->getName(); |
10328 | Enc += "){"; |
10329 | |
10330 | |
10331 | if (const EnumDecl *ED = ET->getDecl()->getDefinition()) { |
10332 | SmallVector<FieldEncoding, 16> FE; |
10333 | for (auto I = ED->enumerator_begin(), E = ED->enumerator_end(); I != E; |
10334 | ++I) { |
10335 | SmallStringEnc EnumEnc; |
10336 | EnumEnc += "m("; |
10337 | EnumEnc += I->getName(); |
10338 | EnumEnc += "){"; |
10339 | I->getInitVal().toString(EnumEnc); |
10340 | EnumEnc += '}'; |
10341 | FE.push_back(FieldEncoding(!I->getName().empty(), EnumEnc)); |
10342 | } |
10343 | llvm::sort(FE); |
10344 | unsigned E = FE.size(); |
10345 | for (unsigned I = 0; I != E; ++I) { |
10346 | if (I) |
10347 | Enc += ','; |
10348 | Enc += FE[I].str(); |
10349 | } |
10350 | } |
10351 | Enc += '}'; |
10352 | TSC.addIfComplete(ID, Enc.substr(Start), false); |
10353 | return true; |
10354 | } |
10355 | |
10356 | |
10357 | |
10358 | static void appendQualifier(SmallStringEnc &Enc, QualType QT) { |
10359 | |
10360 | static const char *const Table[]={"","c:","r:","cr:","v:","cv:","rv:","crv:"}; |
10361 | int Lookup = 0; |
10362 | if (QT.isConstQualified()) |
10363 | Lookup += 1<<0; |
10364 | if (QT.isRestrictQualified()) |
10365 | Lookup += 1<<1; |
10366 | if (QT.isVolatileQualified()) |
10367 | Lookup += 1<<2; |
10368 | Enc += Table[Lookup]; |
10369 | } |
10370 | |
10371 | |
10372 | static bool appendBuiltinType(SmallStringEnc &Enc, const BuiltinType *BT) { |
10373 | const char *EncType; |
10374 | switch (BT->getKind()) { |
10375 | case BuiltinType::Void: |
10376 | EncType = "0"; |
10377 | break; |
10378 | case BuiltinType::Bool: |
10379 | EncType = "b"; |
10380 | break; |
10381 | case BuiltinType::Char_U: |
10382 | EncType = "uc"; |
10383 | break; |
10384 | case BuiltinType::UChar: |
10385 | EncType = "uc"; |
10386 | break; |
10387 | case BuiltinType::SChar: |
10388 | EncType = "sc"; |
10389 | break; |
10390 | case BuiltinType::UShort: |
10391 | EncType = "us"; |
10392 | break; |
10393 | case BuiltinType::Short: |
10394 | EncType = "ss"; |
10395 | break; |
10396 | case BuiltinType::UInt: |
10397 | EncType = "ui"; |
10398 | break; |
10399 | case BuiltinType::Int: |
10400 | EncType = "si"; |
10401 | break; |
10402 | case BuiltinType::ULong: |
10403 | EncType = "ul"; |
10404 | break; |
10405 | case BuiltinType::Long: |
10406 | EncType = "sl"; |
10407 | break; |
10408 | case BuiltinType::ULongLong: |
10409 | EncType = "ull"; |
10410 | break; |
10411 | case BuiltinType::LongLong: |
10412 | EncType = "sll"; |
10413 | break; |
10414 | case BuiltinType::Float: |
10415 | EncType = "ft"; |
10416 | break; |
10417 | case BuiltinType::Double: |
10418 | EncType = "d"; |
10419 | break; |
10420 | case BuiltinType::LongDouble: |
10421 | EncType = "ld"; |
10422 | break; |
10423 | default: |
10424 | return false; |
10425 | } |
10426 | Enc += EncType; |
10427 | return true; |
10428 | } |
10429 | |
10430 | |
10431 | static bool appendPointerType(SmallStringEnc &Enc, const PointerType *PT, |
10432 | const CodeGen::CodeGenModule &CGM, |
10433 | TypeStringCache &TSC) { |
10434 | Enc += "p("; |
10435 | if (!appendType(Enc, PT->getPointeeType(), CGM, TSC)) |
10436 | return false; |
10437 | Enc += ')'; |
10438 | return true; |
10439 | } |
10440 | |
10441 | |
10442 | static bool appendArrayType(SmallStringEnc &Enc, QualType QT, |
10443 | const ArrayType *AT, |
10444 | const CodeGen::CodeGenModule &CGM, |
10445 | TypeStringCache &TSC, StringRef NoSizeEnc) { |
10446 | if (AT->getSizeModifier() != ArrayType::Normal) |
10447 | return false; |
10448 | Enc += "a("; |
10449 | if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) |
10450 | CAT->getSize().toStringUnsigned(Enc); |
10451 | else |
10452 | Enc += NoSizeEnc; |
10453 | Enc += ':'; |
10454 | |
10455 | appendQualifier(Enc, QT); |
10456 | if (!appendType(Enc, AT->getElementType(), CGM, TSC)) |
10457 | return false; |
10458 | Enc += ')'; |
10459 | return true; |
10460 | } |
10461 | |
10462 | |
10463 | |
10464 | static bool appendFunctionType(SmallStringEnc &Enc, const FunctionType *FT, |
10465 | const CodeGen::CodeGenModule &CGM, |
10466 | TypeStringCache &TSC) { |
10467 | Enc += "f{"; |
10468 | if (!appendType(Enc, FT->getReturnType(), CGM, TSC)) |
10469 | return false; |
10470 | Enc += "}("; |
10471 | if (const FunctionProtoType *FPT = FT->getAs<FunctionProtoType>()) { |
10472 | |
10473 | auto I = FPT->param_type_begin(); |
10474 | auto E = FPT->param_type_end(); |
10475 | if (I != E) { |
10476 | do { |
10477 | if (!appendType(Enc, *I, CGM, TSC)) |
10478 | return false; |
10479 | ++I; |
10480 | if (I != E) |
10481 | Enc += ','; |
10482 | } while (I != E); |
10483 | if (FPT->isVariadic()) |
10484 | Enc += ",va"; |
10485 | } else { |
10486 | if (FPT->isVariadic()) |
10487 | Enc += "va"; |
10488 | else |
10489 | Enc += '0'; |
10490 | } |
10491 | } |
10492 | Enc += ')'; |
10493 | return true; |
10494 | } |
10495 | |
10496 | |
10497 | |
10498 | static bool appendType(SmallStringEnc &Enc, QualType QType, |
10499 | const CodeGen::CodeGenModule &CGM, |
10500 | TypeStringCache &TSC) { |
10501 | |
10502 | QualType QT = QType.getCanonicalType(); |
10503 | |
10504 | if (const ArrayType *AT = QT->getAsArrayTypeUnsafe()) |
10505 | |
10506 | |
10507 | return appendArrayType(Enc, QT, AT, CGM, TSC, ""); |
10508 | |
10509 | appendQualifier(Enc, QT); |
10510 | |
10511 | if (const BuiltinType *BT = QT->getAs<BuiltinType>()) |
10512 | return appendBuiltinType(Enc, BT); |
10513 | |
10514 | if (const PointerType *PT = QT->getAs<PointerType>()) |
10515 | return appendPointerType(Enc, PT, CGM, TSC); |
10516 | |
10517 | if (const EnumType *ET = QT->getAs<EnumType>()) |
10518 | return appendEnumType(Enc, ET, TSC, QT.getBaseTypeIdentifier()); |
10519 | |
10520 | if (const RecordType *RT = QT->getAsStructureType()) |
10521 | return appendRecordType(Enc, RT, CGM, TSC, QT.getBaseTypeIdentifier()); |
10522 | |
10523 | if (const RecordType *RT = QT->getAsUnionType()) |
10524 | return appendRecordType(Enc, RT, CGM, TSC, QT.getBaseTypeIdentifier()); |
10525 | |
10526 | if (const FunctionType *FT = QT->getAs<FunctionType>()) |
10527 | return appendFunctionType(Enc, FT, CGM, TSC); |
10528 | |
10529 | return false; |
10530 | } |
10531 | |
10532 | static bool getTypeString(SmallStringEnc &Enc, const Decl *D, |
10533 | const CodeGen::CodeGenModule &CGM, |
10534 | TypeStringCache &TSC) { |
10535 | if (!D) |
10536 | return false; |
10537 | |
10538 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
10539 | if (FD->getLanguageLinkage() != CLanguageLinkage) |
10540 | return false; |
10541 | return appendType(Enc, FD->getType(), CGM, TSC); |
10542 | } |
10543 | |
10544 | if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { |
10545 | if (VD->getLanguageLinkage() != CLanguageLinkage) |
10546 | return false; |
10547 | QualType QT = VD->getType().getCanonicalType(); |
10548 | if (const ArrayType *AT = QT->getAsArrayTypeUnsafe()) { |
10549 | |
10550 | |
10551 | |
10552 | return appendArrayType(Enc, QT, AT, CGM, TSC, "*"); |
10553 | } |
10554 | return appendType(Enc, QT, CGM, TSC); |
10555 | } |
10556 | return false; |
10557 | } |
10558 | |
10559 | |
10560 | |
10561 | |
10562 | |
10563 | namespace { |
10564 | class RISCVABIInfo : public DefaultABIInfo { |
10565 | private: |
10566 | |
10567 | unsigned XLen; |
10568 | |
10569 | |
10570 | |
10571 | unsigned FLen; |
10572 | static const int NumArgGPRs = 8; |
10573 | static const int NumArgFPRs = 8; |
10574 | bool detectFPCCEligibleStructHelper(QualType Ty, CharUnits CurOff, |
10575 | llvm::Type *&Field1Ty, |
10576 | CharUnits &Field1Off, |
10577 | llvm::Type *&Field2Ty, |
10578 | CharUnits &Field2Off) const; |
10579 | |
10580 | public: |
10581 | RISCVABIInfo(CodeGen::CodeGenTypes &CGT, unsigned XLen, unsigned FLen) |
10582 | : DefaultABIInfo(CGT), XLen(XLen), FLen(FLen) {} |
10583 | |
10584 | |
10585 | |
10586 | void computeInfo(CGFunctionInfo &FI) const override; |
10587 | |
10588 | ABIArgInfo classifyArgumentType(QualType Ty, bool IsFixed, int &ArgGPRsLeft, |
10589 | int &ArgFPRsLeft) const; |
10590 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
10591 | |
10592 | Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
10593 | QualType Ty) const override; |
10594 | |
10595 | ABIArgInfo extendType(QualType Ty) const; |
10596 | |
10597 | bool detectFPCCEligibleStruct(QualType Ty, llvm::Type *&Field1Ty, |
10598 | CharUnits &Field1Off, llvm::Type *&Field2Ty, |
10599 | CharUnits &Field2Off, int &NeededArgGPRs, |
10600 | int &NeededArgFPRs) const; |
10601 | ABIArgInfo coerceAndExpandFPCCEligibleStruct(llvm::Type *Field1Ty, |
10602 | CharUnits Field1Off, |
10603 | llvm::Type *Field2Ty, |
10604 | CharUnits Field2Off) const; |
10605 | }; |
10606 | } |
10607 | |
10608 | void RISCVABIInfo::computeInfo(CGFunctionInfo &FI) const { |
10609 | QualType RetTy = FI.getReturnType(); |
10610 | if (!getCXXABI().classifyReturnType(FI)) |
10611 | FI.getReturnInfo() = classifyReturnType(RetTy); |
10612 | |
10613 | |
10614 | |
10615 | |
10616 | |
10617 | |
10618 | bool IsRetIndirect = FI.getReturnInfo().getKind() == ABIArgInfo::Indirect; |
10619 | if (!IsRetIndirect && RetTy->isScalarType() && |
10620 | getContext().getTypeSize(RetTy) > (2 * XLen)) { |
10621 | if (RetTy->isComplexType() && FLen) { |
10622 | QualType EltTy = RetTy->castAs<ComplexType>()->getElementType(); |
10623 | IsRetIndirect = getContext().getTypeSize(EltTy) > FLen; |
10624 | } else { |
10625 | |
10626 | IsRetIndirect = true; |
10627 | } |
10628 | } |
10629 | |
10630 | |
10631 | |
10632 | |
10633 | |
10634 | |
10635 | int ArgGPRsLeft = IsRetIndirect ? NumArgGPRs - 1 : NumArgGPRs; |
10636 | int ArgFPRsLeft = FLen ? NumArgFPRs : 0; |
10637 | int NumFixedArgs = FI.getNumRequiredArgs(); |
10638 | |
10639 | int ArgNum = 0; |
10640 | for (auto &ArgInfo : FI.arguments()) { |
10641 | bool IsFixed = ArgNum < NumFixedArgs; |
10642 | ArgInfo.info = |
10643 | classifyArgumentType(ArgInfo.type, IsFixed, ArgGPRsLeft, ArgFPRsLeft); |
10644 | ArgNum++; |
10645 | } |
10646 | } |
10647 | |
10648 | |
10649 | |
10650 | |
10651 | |
10652 | bool RISCVABIInfo::detectFPCCEligibleStructHelper(QualType Ty, CharUnits CurOff, |
10653 | llvm::Type *&Field1Ty, |
10654 | CharUnits &Field1Off, |
10655 | llvm::Type *&Field2Ty, |
10656 | CharUnits &Field2Off) const { |
10657 | bool IsInt = Ty->isIntegralOrEnumerationType(); |
10658 | bool IsFloat = Ty->isRealFloatingType(); |
10659 | |
10660 | if (IsInt || IsFloat) { |
10661 | uint64_t Size = getContext().getTypeSize(Ty); |
10662 | if (IsInt && Size > XLen) |
10663 | return false; |
10664 | |
10665 | |
10666 | |
10667 | if (IsFloat && (Size > FLen || Size < 32)) |
10668 | return false; |
10669 | |
10670 | |
10671 | if (IsInt && Field1Ty && Field1Ty->isIntegerTy()) |
10672 | return false; |
10673 | if (!Field1Ty) { |
10674 | Field1Ty = CGT.ConvertType(Ty); |
10675 | Field1Off = CurOff; |
10676 | return true; |
10677 | } |
10678 | if (!Field2Ty) { |
10679 | Field2Ty = CGT.ConvertType(Ty); |
10680 | Field2Off = CurOff; |
10681 | return true; |
10682 | } |
10683 | return false; |
10684 | } |
10685 | |
10686 | if (auto CTy = Ty->getAs<ComplexType>()) { |
10687 | if (Field1Ty) |
10688 | return false; |
10689 | QualType EltTy = CTy->getElementType(); |
10690 | if (getContext().getTypeSize(EltTy) > FLen) |
10691 | return false; |
10692 | Field1Ty = CGT.ConvertType(EltTy); |
10693 | Field1Off = CurOff; |
10694 | Field2Ty = Field1Ty; |
10695 | Field2Off = Field1Off + getContext().getTypeSizeInChars(EltTy); |
10696 | return true; |
10697 | } |
10698 | |
10699 | if (const ConstantArrayType *ATy = getContext().getAsConstantArrayType(Ty)) { |
10700 | uint64_t ArraySize = ATy->getSize().getZExtValue(); |
10701 | QualType EltTy = ATy->getElementType(); |
10702 | CharUnits EltSize = getContext().getTypeSizeInChars(EltTy); |
10703 | for (uint64_t i = 0; i < ArraySize; ++i) { |
10704 | bool Ret = detectFPCCEligibleStructHelper(EltTy, CurOff, Field1Ty, |
10705 | Field1Off, Field2Ty, Field2Off); |
10706 | if (!Ret) |
10707 | return false; |
10708 | CurOff += EltSize; |
10709 | } |
10710 | return true; |
10711 | } |
10712 | |
10713 | if (const auto *RTy = Ty->getAs<RecordType>()) { |
10714 | |
10715 | |
10716 | if (getRecordArgABI(Ty, CGT.getCXXABI())) |
10717 | return false; |
10718 | if (isEmptyRecord(getContext(), Ty, true)) |
10719 | return true; |
10720 | const RecordDecl *RD = RTy->getDecl(); |
10721 | |
10722 | if (RD->isUnion()) |
10723 | return false; |
10724 | int ZeroWidthBitFieldCount = 0; |
10725 | for (const FieldDecl *FD : RD->fields()) { |
10726 | const ASTRecordLayout &Layout = getContext().getASTRecordLayout(RD); |
10727 | uint64_t FieldOffInBits = Layout.getFieldOffset(FD->getFieldIndex()); |
10728 | QualType QTy = FD->getType(); |
10729 | if (FD->isBitField()) { |
10730 | unsigned BitWidth = FD->getBitWidthValue(getContext()); |
10731 | |
10732 | |
10733 | if (getContext().getTypeSize(QTy) > XLen && BitWidth <= XLen) |
10734 | QTy = getContext().getIntTypeForBitwidth(XLen, false); |
10735 | if (BitWidth == 0) { |
10736 | ZeroWidthBitFieldCount++; |
10737 | continue; |
10738 | } |
10739 | } |
10740 | |
10741 | bool Ret = detectFPCCEligibleStructHelper( |
10742 | QTy, CurOff + getContext().toCharUnitsFromBits(FieldOffInBits), |
10743 | Field1Ty, Field1Off, Field2Ty, Field2Off); |
10744 | if (!Ret) |
10745 | return false; |
10746 | |
10747 | |
10748 | |
10749 | |
10750 | if (Field2Ty && ZeroWidthBitFieldCount > 0) |
10751 | return false; |
10752 | } |
10753 | return Field1Ty != nullptr; |
10754 | } |
10755 | |
10756 | return false; |
10757 | } |
10758 | |
10759 | |
10760 | |
10761 | |
10762 | |
10763 | bool RISCVABIInfo::detectFPCCEligibleStruct(QualType Ty, llvm::Type *&Field1Ty, |
10764 | CharUnits &Field1Off, |
10765 | llvm::Type *&Field2Ty, |
10766 | CharUnits &Field2Off, |
10767 | int &NeededArgGPRs, |
10768 | int &NeededArgFPRs) const { |
10769 | Field1Ty = nullptr; |
10770 | Field2Ty = nullptr; |
10771 | NeededArgGPRs = 0; |
10772 | NeededArgFPRs = 0; |
10773 | bool IsCandidate = detectFPCCEligibleStructHelper( |
10774 | Ty, CharUnits::Zero(), Field1Ty, Field1Off, Field2Ty, Field2Off); |
10775 | |
10776 | if (Field1Ty && !Field2Ty && !Field1Ty->isFloatingPointTy()) |
10777 | return false; |
10778 | if (!IsCandidate) |
10779 | return false; |
10780 | if (Field1Ty && Field1Ty->isFloatingPointTy()) |
10781 | NeededArgFPRs++; |
10782 | else if (Field1Ty) |
10783 | NeededArgGPRs++; |
10784 | if (Field2Ty && Field2Ty->isFloatingPointTy()) |
10785 | NeededArgFPRs++; |
10786 | else if (Field2Ty) |
10787 | NeededArgGPRs++; |
10788 | return true; |
10789 | } |
10790 | |
10791 | |
10792 | |
10793 | |
10794 | ABIArgInfo RISCVABIInfo::coerceAndExpandFPCCEligibleStruct( |
10795 | llvm::Type *Field1Ty, CharUnits Field1Off, llvm::Type *Field2Ty, |
10796 | CharUnits Field2Off) const { |
10797 | SmallVector<llvm::Type *, 3> CoerceElts; |
10798 | SmallVector<llvm::Type *, 2> UnpaddedCoerceElts; |
10799 | if (!Field1Off.isZero()) |
10800 | CoerceElts.push_back(llvm::ArrayType::get( |
10801 | llvm::Type::getInt8Ty(getVMContext()), Field1Off.getQuantity())); |
10802 | |
10803 | CoerceElts.push_back(Field1Ty); |
10804 | UnpaddedCoerceElts.push_back(Field1Ty); |
10805 | |
10806 | if (!Field2Ty) { |
10807 | return ABIArgInfo::getCoerceAndExpand( |
10808 | llvm::StructType::get(getVMContext(), CoerceElts, !Field1Off.isZero()), |
10809 | UnpaddedCoerceElts[0]); |
10810 | } |
10811 | |
10812 | CharUnits Field2Align = |
10813 | CharUnits::fromQuantity(getDataLayout().getABITypeAlignment(Field2Ty)); |
10814 | CharUnits Field1End = Field1Off + |
10815 | CharUnits::fromQuantity(getDataLayout().getTypeStoreSize(Field1Ty)); |
10816 | CharUnits Field2OffNoPadNoPack = Field1End.alignTo(Field2Align); |
10817 | |
10818 | CharUnits Padding = CharUnits::Zero(); |
10819 | if (Field2Off > Field2OffNoPadNoPack) |
10820 | Padding = Field2Off - Field2OffNoPadNoPack; |
10821 | else if (Field2Off != Field2Align && Field2Off > Field1End) |
10822 | Padding = Field2Off - Field1End; |
10823 | |
10824 | bool IsPacked = !Field2Off.isMultipleOf(Field2Align); |
10825 | |
10826 | if (!Padding.isZero()) |
10827 | CoerceElts.push_back(llvm::ArrayType::get( |
10828 | llvm::Type::getInt8Ty(getVMContext()), Padding.getQuantity())); |
10829 | |
10830 | CoerceElts.push_back(Field2Ty); |
10831 | UnpaddedCoerceElts.push_back(Field2Ty); |
10832 | |
10833 | auto CoerceToType = |
10834 | llvm::StructType::get(getVMContext(), CoerceElts, IsPacked); |
10835 | auto UnpaddedCoerceToType = |
10836 | llvm::StructType::get(getVMContext(), UnpaddedCoerceElts, IsPacked); |
10837 | |
10838 | return ABIArgInfo::getCoerceAndExpand(CoerceToType, UnpaddedCoerceToType); |
10839 | } |
10840 | |
10841 | ABIArgInfo RISCVABIInfo::classifyArgumentType(QualType Ty, bool IsFixed, |
10842 | int &ArgGPRsLeft, |
10843 | int &ArgFPRsLeft) const { |
10844 | assert(ArgGPRsLeft <= NumArgGPRs && "Arg GPR tracking underflow"); |
10845 | Ty = useFirstFieldIfTransparentUnion(Ty); |
10846 | |
10847 | |
10848 | |
10849 | if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) { |
10850 | if (ArgGPRsLeft) |
10851 | ArgGPRsLeft -= 1; |
10852 | return getNaturalAlignIndirect(Ty, RAA == |
10853 | CGCXXABI::RAA_DirectInMemory); |
10854 | } |
10855 | |
10856 | |
10857 | if (isEmptyRecord(getContext(), Ty, true)) |
10858 | return ABIArgInfo::getIgnore(); |
10859 | |
10860 | uint64_t Size = getContext().getTypeSize(Ty); |
10861 | |
10862 | |
10863 | if (IsFixed && Ty->isFloatingType() && !Ty->isComplexType() && |
10864 | FLen >= Size && ArgFPRsLeft) { |
10865 | ArgFPRsLeft--; |
10866 | return ABIArgInfo::getDirect(); |
10867 | } |
10868 | |
10869 | |
10870 | |
10871 | if (IsFixed && Ty->isComplexType() && FLen && ArgFPRsLeft >= 2) { |
10872 | QualType EltTy = Ty->castAs<ComplexType>()->getElementType(); |
10873 | if (getContext().getTypeSize(EltTy) <= FLen) { |
10874 | ArgFPRsLeft -= 2; |
10875 | return ABIArgInfo::getDirect(); |
10876 | } |
10877 | } |
10878 | |
10879 | if (IsFixed && FLen && Ty->isStructureOrClassType()) { |
10880 | llvm::Type *Field1Ty = nullptr; |
10881 | llvm::Type *Field2Ty = nullptr; |
10882 | CharUnits Field1Off = CharUnits::Zero(); |
10883 | CharUnits Field2Off = CharUnits::Zero(); |
10884 | int NeededArgGPRs = 0; |
10885 | int NeededArgFPRs = 0; |
10886 | bool IsCandidate = |
10887 | detectFPCCEligibleStruct(Ty, Field1Ty, Field1Off, Field2Ty, Field2Off, |
10888 | NeededArgGPRs, NeededArgFPRs); |
10889 | if (IsCandidate && NeededArgGPRs <= ArgGPRsLeft && |
10890 | NeededArgFPRs <= ArgFPRsLeft) { |
10891 | ArgGPRsLeft -= NeededArgGPRs; |
10892 | ArgFPRsLeft -= NeededArgFPRs; |
10893 | return coerceAndExpandFPCCEligibleStruct(Field1Ty, Field1Off, Field2Ty, |
10894 | Field2Off); |
10895 | } |
10896 | } |
10897 | |
10898 | uint64_t NeededAlign = getContext().getTypeAlign(Ty); |
10899 | bool MustUseStack = false; |
10900 | |
10901 | |
10902 | |
10903 | int NeededArgGPRs = 1; |
10904 | if (!IsFixed && NeededAlign == 2 * XLen) |
10905 | NeededArgGPRs = 2 + (ArgGPRsLeft % 2); |
10906 | else if (Size > XLen && Size <= 2 * XLen) |
10907 | NeededArgGPRs = 2; |
10908 | |
10909 | if (NeededArgGPRs > ArgGPRsLeft) { |
10910 | MustUseStack = true; |
10911 | NeededArgGPRs = ArgGPRsLeft; |
10912 | } |
10913 | |
10914 | ArgGPRsLeft -= NeededArgGPRs; |
10915 | |
10916 | if (!isAggregateTypeForABI(Ty) && !Ty->isVectorType()) { |
10917 | |
10918 | if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
10919 | Ty = EnumTy->getDecl()->getIntegerType(); |
10920 | |
10921 | |
10922 | |
10923 | if (Size < XLen && Ty->isIntegralOrEnumerationType() && !MustUseStack) { |
10924 | return extendType(Ty); |
10925 | } |
10926 | |
10927 | if (const auto *EIT = Ty->getAs<ExtIntType>()) { |
10928 | if (EIT->getNumBits() < XLen && !MustUseStack) |
10929 | return extendType(Ty); |
10930 | if (EIT->getNumBits() > 128 || |
10931 | (!getContext().getTargetInfo().hasInt128Type() && |
10932 | EIT->getNumBits() > 64)) |
10933 | return getNaturalAlignIndirect(Ty, false); |
10934 | } |
10935 | |
10936 | return ABIArgInfo::getDirect(); |
10937 | } |
10938 | |
10939 | |
10940 | |
10941 | if (Size <= 2 * XLen) { |
10942 | unsigned Alignment = getContext().getTypeAlign(Ty); |
10943 | |
10944 | |
10945 | |
10946 | if (Size <= XLen) { |
10947 | return ABIArgInfo::getDirect( |
10948 | llvm::IntegerType::get(getVMContext(), XLen)); |
10949 | } else if (Alignment == 2 * XLen) { |
10950 | return ABIArgInfo::getDirect( |
10951 | llvm::IntegerType::get(getVMContext(), 2 * XLen)); |
10952 | } else { |
10953 | return ABIArgInfo::getDirect(llvm::ArrayType::get( |
10954 | llvm::IntegerType::get(getVMContext(), XLen), 2)); |
10955 | } |
10956 | } |
10957 | return getNaturalAlignIndirect(Ty, false); |
10958 | } |
10959 | |
10960 | ABIArgInfo RISCVABIInfo::classifyReturnType(QualType RetTy) const { |
10961 | if (RetTy->isVoidType()) |
10962 | return ABIArgInfo::getIgnore(); |
10963 | |
10964 | int ArgGPRsLeft = 2; |
10965 | int ArgFPRsLeft = FLen ? 2 : 0; |
10966 | |
10967 | |
10968 | |
10969 | return classifyArgumentType(RetTy, true, ArgGPRsLeft, |
10970 | ArgFPRsLeft); |
10971 | } |
10972 | |
10973 | Address RISCVABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, |
10974 | QualType Ty) const { |
10975 | CharUnits SlotSize = CharUnits::fromQuantity(XLen / 8); |
10976 | |
10977 | |
10978 | if (isEmptyRecord(getContext(), Ty, true)) { |
10979 | Address Addr(CGF.Builder.CreateLoad(VAListAddr), SlotSize); |
10980 | Addr = CGF.Builder.CreateElementBitCast(Addr, CGF.ConvertTypeForMem(Ty)); |
10981 | return Addr; |
10982 | } |
10983 | |
10984 | auto TInfo = getContext().getTypeInfoInChars(Ty); |
10985 | |
10986 | |
10987 | bool IsIndirect = TInfo.Width > 2 * SlotSize; |
10988 | |
10989 | return emitVoidPtrVAArg(CGF, VAListAddr, Ty, IsIndirect, TInfo, |
10990 | SlotSize, true); |
10991 | } |
10992 | |
10993 | ABIArgInfo RISCVABIInfo::extendType(QualType Ty) const { |
10994 | int TySize = getContext().getTypeSize(Ty); |
10995 | |
10996 | if (XLen == 64 && Ty->isUnsignedIntegerOrEnumerationType() && TySize == 32) |
10997 | return ABIArgInfo::getSignExtend(Ty); |
10998 | return ABIArgInfo::getExtend(Ty); |
10999 | } |
11000 | |
11001 | namespace { |
11002 | class RISCVTargetCodeGenInfo : public TargetCodeGenInfo { |
11003 | public: |
11004 | RISCVTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, unsigned XLen, |
11005 | unsigned FLen) |
11006 | : TargetCodeGenInfo(std::make_unique<RISCVABIInfo>(CGT, XLen, FLen)) {} |
11007 | |
11008 | void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, |
11009 | CodeGen::CodeGenModule &CGM) const override { |
11010 | const auto *FD = dyn_cast_or_null<FunctionDecl>(D); |
11011 | if (!FD) return; |
11012 | |
11013 | const auto *Attr = FD->getAttr<RISCVInterruptAttr>(); |
11014 | if (!Attr) |
11015 | return; |
11016 | |
11017 | const char *Kind; |
11018 | switch (Attr->getInterrupt()) { |
11019 | case RISCVInterruptAttr::user: Kind = "user"; break; |
11020 | case RISCVInterruptAttr::supervisor: Kind = "supervisor"; break; |
11021 | case RISCVInterruptAttr::machine: Kind = "machine"; break; |
11022 | } |
11023 | |
11024 | auto *Fn = cast<llvm::Function>(GV); |
11025 | |
11026 | Fn->addFnAttr("interrupt", Kind); |
11027 | } |
11028 | }; |
11029 | } |
11030 | |
11031 | |
11032 | |
11033 | |
11034 | namespace { |
11035 | class VEABIInfo : public DefaultABIInfo { |
11036 | public: |
11037 | VEABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
11038 | |
11039 | private: |
11040 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
11041 | ABIArgInfo classifyArgumentType(QualType RetTy) const; |
11042 | void computeInfo(CGFunctionInfo &FI) const override; |
11043 | }; |
11044 | } |
11045 | |
11046 | ABIArgInfo VEABIInfo::classifyReturnType(QualType Ty) const { |
11047 | if (Ty->isAnyComplexType()) |
11048 | return ABIArgInfo::getDirect(); |
11049 | uint64_t Size = getContext().getTypeSize(Ty); |
11050 | if (Size < 64 && Ty->isIntegerType()) |
11051 | return ABIArgInfo::getExtend(Ty); |
11052 | return DefaultABIInfo::classifyReturnType(Ty); |
11053 | } |
11054 | |
11055 | ABIArgInfo VEABIInfo::classifyArgumentType(QualType Ty) const { |
11056 | if (Ty->isAnyComplexType()) |
11057 | return ABIArgInfo::getDirect(); |
11058 | uint64_t Size = getContext().getTypeSize(Ty); |
11059 | if (Size < 64 && Ty->isIntegerType()) |
11060 | return ABIArgInfo::getExtend(Ty); |
11061 | return DefaultABIInfo::classifyArgumentType(Ty); |
11062 | } |
11063 | |
11064 | void VEABIInfo::computeInfo(CGFunctionInfo &FI) const { |
11065 | FI.getReturnInfo() = classifyReturnType(FI.getReturnType()); |
11066 | for (auto &Arg : FI.arguments()) |
11067 | Arg.info = classifyArgumentType(Arg.type); |
11068 | } |
11069 | |
11070 | namespace { |
11071 | class VETargetCodeGenInfo : public TargetCodeGenInfo { |
11072 | public: |
11073 | VETargetCodeGenInfo(CodeGenTypes &CGT) |
11074 | : TargetCodeGenInfo(std::make_unique<VEABIInfo>(CGT)) {} |
11075 | |
11076 | |
11077 | bool isNoProtoCallVariadic(const CallArgList &args, |
11078 | const FunctionNoProtoType *fnType) const override { |
11079 | return true; |
11080 | } |
11081 | }; |
11082 | } |
11083 | |
11084 | |
11085 | |
11086 | |
11087 | |
11088 | bool CodeGenModule::supportsCOMDAT() const { |
11089 | return getTriple().supportsCOMDAT(); |
11090 | } |
11091 | |
11092 | const TargetCodeGenInfo &CodeGenModule::getTargetCodeGenInfo() { |
11093 | if (TheTargetCodeGenInfo) |
11094 | return *TheTargetCodeGenInfo; |
11095 | |
11096 | |
11097 | auto SetCGInfo = [&](TargetCodeGenInfo *P) -> const TargetCodeGenInfo & { |
11098 | this->TheTargetCodeGenInfo.reset(P); |
11099 | return *P; |
11100 | }; |
11101 | |
11102 | const llvm::Triple &Triple = getTarget().getTriple(); |
11103 | switch (Triple.getArch()) { |
11104 | default: |
11105 | return SetCGInfo(new DefaultTargetCodeGenInfo(Types)); |
11106 | |
11107 | case llvm::Triple::le32: |
11108 | return SetCGInfo(new PNaClTargetCodeGenInfo(Types)); |
11109 | case llvm::Triple::m68k: |
11110 | return SetCGInfo(new M68kTargetCodeGenInfo(Types)); |
11111 | case llvm::Triple::mips: |
11112 | case llvm::Triple::mipsel: |
11113 | if (Triple.getOS() == llvm::Triple::NaCl) |
11114 | return SetCGInfo(new PNaClTargetCodeGenInfo(Types)); |
11115 | return SetCGInfo(new MIPSTargetCodeGenInfo(Types, true)); |
11116 | |
11117 | case llvm::Triple::mips64: |
11118 | case llvm::Triple::mips64el: |
11119 | return SetCGInfo(new MIPSTargetCodeGenInfo(Types, false)); |
11120 | |
11121 | case llvm::Triple::avr: |
11122 | return SetCGInfo(new AVRTargetCodeGenInfo(Types)); |
11123 | |
11124 | case llvm::Triple::aarch64: |
11125 | case llvm::Triple::aarch64_32: |
11126 | case llvm::Triple::aarch64_be: { |
11127 | AArch64ABIInfo::ABIKind Kind = AArch64ABIInfo::AAPCS; |
11128 | if (getTarget().getABI() == "darwinpcs") |
11129 | Kind = AArch64ABIInfo::DarwinPCS; |
11130 | else if (Triple.isOSWindows()) |
11131 | return SetCGInfo( |
11132 | new WindowsAArch64TargetCodeGenInfo(Types, AArch64ABIInfo::Win64)); |
11133 | |
11134 | return SetCGInfo(new AArch64TargetCodeGenInfo(Types, Kind)); |
11135 | } |
11136 | |
11137 | case llvm::Triple::wasm32: |
11138 | case llvm::Triple::wasm64: { |
11139 | WebAssemblyABIInfo::ABIKind Kind = WebAssemblyABIInfo::MVP; |
11140 | if (getTarget().getABI() == "experimental-mv") |
11141 | Kind = WebAssemblyABIInfo::ExperimentalMV; |
11142 | return SetCGInfo(new WebAssemblyTargetCodeGenInfo(Types, Kind)); |
11143 | } |
11144 | |
11145 | case llvm::Triple::arm: |
11146 | case llvm::Triple::armeb: |
11147 | case llvm::Triple::thumb: |
11148 | case llvm::Triple::thumbeb: { |
11149 | if (Triple.getOS() == llvm::Triple::Win32) { |
11150 | return SetCGInfo( |
11151 | new WindowsARMTargetCodeGenInfo(Types, ARMABIInfo::AAPCS_VFP)); |
11152 | } |
11153 | |
11154 | ARMABIInfo::ABIKind Kind = ARMABIInfo::AAPCS; |
11155 | StringRef ABIStr = getTarget().getABI(); |
11156 | if (ABIStr == "apcs-gnu") |
11157 | Kind = ARMABIInfo::APCS; |
11158 | else if (ABIStr == "aapcs16") |
11159 | Kind = ARMABIInfo::AAPCS16_VFP; |
11160 | else if (CodeGenOpts.FloatABI == "hard" || |
11161 | (CodeGenOpts.FloatABI != "soft" && |
11162 | (Triple.getEnvironment() == llvm::Triple::GNUEABIHF || |
11163 | Triple.getEnvironment() == llvm::Triple::MuslEABIHF || |
11164 | Triple.getEnvironment() == llvm::Triple::EABIHF))) |
11165 | Kind = ARMABIInfo::AAPCS_VFP; |
11166 | |
11167 | return SetCGInfo(new ARMTargetCodeGenInfo(Types, Kind)); |
11168 | } |
11169 | |
11170 | case llvm::Triple::ppc: { |
11171 | if (Triple.isOSAIX()) |
11172 | return SetCGInfo(new AIXTargetCodeGenInfo(Types, false)); |
11173 | |
11174 | bool IsSoftFloat = |
11175 | CodeGenOpts.FloatABI == "soft" || getTarget().hasFeature("spe"); |
11176 | bool RetSmallStructInRegABI = |
11177 | PPC32TargetCodeGenInfo::isStructReturnInRegABI(Triple, CodeGenOpts); |
11178 | return SetCGInfo( |
11179 | new PPC32TargetCodeGenInfo(Types, IsSoftFloat, RetSmallStructInRegABI)); |
11180 | } |
11181 | case llvm::Triple::ppcle: { |
11182 | bool IsSoftFloat = CodeGenOpts.FloatABI == "soft"; |
11183 | bool RetSmallStructInRegABI = |
11184 | PPC32TargetCodeGenInfo::isStructReturnInRegABI(Triple, CodeGenOpts); |
11185 | return SetCGInfo( |
11186 | new PPC32TargetCodeGenInfo(Types, IsSoftFloat, RetSmallStructInRegABI)); |
11187 | } |
11188 | case llvm::Triple::ppc64: |
11189 | if (Triple.isOSAIX()) |
11190 | return SetCGInfo(new AIXTargetCodeGenInfo(Types, true)); |
11191 | |
11192 | if (Triple.isOSBinFormatELF()) { |
11193 | PPC64_SVR4_ABIInfo::ABIKind Kind = PPC64_SVR4_ABIInfo::ELFv1; |
11194 | if (getTarget().getABI() == "elfv2") |
11195 | Kind = PPC64_SVR4_ABIInfo::ELFv2; |
11196 | bool IsSoftFloat = CodeGenOpts.FloatABI == "soft"; |
11197 | |
11198 | return SetCGInfo( |
11199 | new PPC64_SVR4_TargetCodeGenInfo(Types, Kind, IsSoftFloat)); |
11200 | } |
11201 | return SetCGInfo(new PPC64TargetCodeGenInfo(Types)); |
11202 | case llvm::Triple::ppc64le: { |
11203 | assert(Triple.isOSBinFormatELF() && "PPC64 LE non-ELF not supported!"); |
11204 | PPC64_SVR4_ABIInfo::ABIKind Kind = PPC64_SVR4_ABIInfo::ELFv2; |
11205 | if (getTarget().getABI() == "elfv1") |
11206 | Kind = PPC64_SVR4_ABIInfo::ELFv1; |
11207 | bool IsSoftFloat = CodeGenOpts.FloatABI == "soft"; |
11208 | |
11209 | return SetCGInfo( |
11210 | new PPC64_SVR4_TargetCodeGenInfo(Types, Kind, IsSoftFloat)); |
11211 | } |
11212 | |
11213 | case llvm::Triple::nvptx: |
11214 | case llvm::Triple::nvptx64: |
11215 | return SetCGInfo(new NVPTXTargetCodeGenInfo(Types)); |
11216 | |
11217 | case llvm::Triple::msp430: |
11218 | return SetCGInfo(new MSP430TargetCodeGenInfo(Types)); |
11219 | |
11220 | case llvm::Triple::riscv32: |
11221 | case llvm::Triple::riscv64: { |
11222 | StringRef ABIStr = getTarget().getABI(); |
11223 | unsigned XLen = getTarget().getPointerWidth(0); |
11224 | unsigned ABIFLen = 0; |
11225 | if (ABIStr.endswith("f")) |
11226 | ABIFLen = 32; |
11227 | else if (ABIStr.endswith("d")) |
11228 | ABIFLen = 64; |
11229 | return SetCGInfo(new RISCVTargetCodeGenInfo(Types, XLen, ABIFLen)); |
11230 | } |
11231 | |
11232 | case llvm::Triple::systemz: { |
11233 | bool SoftFloat = CodeGenOpts.FloatABI == "soft"; |
11234 | bool HasVector = !SoftFloat && getTarget().getABI() == "vector"; |
11235 | return SetCGInfo(new SystemZTargetCodeGenInfo(Types, HasVector, SoftFloat)); |
11236 | } |
11237 | |
11238 | case llvm::Triple::tce: |
11239 | case llvm::Triple::tcele: |
11240 | return SetCGInfo(new TCETargetCodeGenInfo(Types)); |
11241 | |
11242 | case llvm::Triple::x86: { |
11243 | bool IsDarwinVectorABI = Triple.isOSDarwin(); |
11244 | bool RetSmallStructInRegABI = |
11245 | X86_32TargetCodeGenInfo::isStructReturnInRegABI(Triple, CodeGenOpts); |
11246 | bool IsWin32FloatStructABI = Triple.isOSWindows() && !Triple.isOSCygMing(); |
11247 | |
11248 | if (Triple.getOS() == llvm::Triple::Win32) { |
11249 | return SetCGInfo(new WinX86_32TargetCodeGenInfo( |
11250 | Types, IsDarwinVectorABI, RetSmallStructInRegABI, |
11251 | IsWin32FloatStructABI, CodeGenOpts.NumRegisterParameters)); |
11252 | } else { |
11253 | return SetCGInfo(new X86_32TargetCodeGenInfo( |
11254 | Types, IsDarwinVectorABI, RetSmallStructInRegABI, |
11255 | IsWin32FloatStructABI, CodeGenOpts.NumRegisterParameters, |
11256 | CodeGenOpts.FloatABI == "soft")); |
11257 | } |
11258 | } |
11259 | |
11260 | case llvm::Triple::x86_64: { |
11261 | StringRef ABI = getTarget().getABI(); |
11262 | X86AVXABILevel AVXLevel = |
11263 | (ABI == "avx512" |
11264 | ? X86AVXABILevel::AVX512 |
11265 | : ABI == "avx" ? X86AVXABILevel::AVX : X86AVXABILevel::None); |
11266 | |
11267 | switch (Triple.getOS()) { |
11268 | case llvm::Triple::Win32: |
11269 | return SetCGInfo(new WinX86_64TargetCodeGenInfo(Types, AVXLevel)); |
11270 | default: |
11271 | return SetCGInfo(new X86_64TargetCodeGenInfo(Types, AVXLevel)); |
11272 | } |
11273 | } |
11274 | case llvm::Triple::hexagon: |
11275 | return SetCGInfo(new HexagonTargetCodeGenInfo(Types)); |
11276 | case llvm::Triple::lanai: |
11277 | return SetCGInfo(new LanaiTargetCodeGenInfo(Types)); |
11278 | case llvm::Triple::r600: |
11279 | return SetCGInfo(new AMDGPUTargetCodeGenInfo(Types)); |
11280 | case llvm::Triple::amdgcn: |
11281 | return SetCGInfo(new AMDGPUTargetCodeGenInfo(Types)); |
11282 | case llvm::Triple::sparc: |
11283 | return SetCGInfo(new SparcV8TargetCodeGenInfo(Types)); |
11284 | case llvm::Triple::sparcv9: |
11285 | return SetCGInfo(new SparcV9TargetCodeGenInfo(Types)); |
11286 | case llvm::Triple::xcore: |
11287 | return SetCGInfo(new XCoreTargetCodeGenInfo(Types)); |
11288 | case llvm::Triple::arc: |
11289 | return SetCGInfo(new ARCTargetCodeGenInfo(Types)); |
11290 | case llvm::Triple::spir: |
11291 | case llvm::Triple::spir64: |
11292 | return SetCGInfo(new SPIRTargetCodeGenInfo(Types)); |
11293 | case llvm::Triple::ve: |
11294 | return SetCGInfo(new VETargetCodeGenInfo(Types)); |
11295 | } |
11296 | } |
11297 | |
11298 | |
11299 | |
11300 | |
11301 | |
11302 | |
11303 | llvm::Function * |
11304 | TargetCodeGenInfo::createEnqueuedBlockKernel(CodeGenFunction &CGF, |
11305 | llvm::Function *Invoke, |
11306 | llvm::Value *BlockLiteral) const { |
11307 | auto *InvokeFT = Invoke->getFunctionType(); |
11308 | llvm::SmallVector<llvm::Type *, 2> ArgTys; |
11309 | for (auto &P : InvokeFT->params()) |
11310 | ArgTys.push_back(P); |
11311 | auto &C = CGF.getLLVMContext(); |
11312 | std::string Name = Invoke->getName().str() + "_kernel"; |
11313 | auto *FT = llvm::FunctionType::get(llvm::Type::getVoidTy(C), ArgTys, false); |
11314 | auto *F = llvm::Function::Create(FT, llvm::GlobalValue::InternalLinkage, Name, |
11315 | &CGF.CGM.getModule()); |
11316 | auto IP = CGF.Builder.saveIP(); |
11317 | auto *BB = llvm::BasicBlock::Create(C, "entry", F); |
11318 | auto &Builder = CGF.Builder; |
11319 | Builder.SetInsertPoint(BB); |
11320 | llvm::SmallVector<llvm::Value *, 2> Args; |
11321 | for (auto &A : F->args()) |
11322 | Args.push_back(&A); |
11323 | llvm::CallInst *call = Builder.CreateCall(Invoke, Args); |
11324 | call->setCallingConv(Invoke->getCallingConv()); |
11325 | Builder.CreateRetVoid(); |
11326 | Builder.restoreIP(IP); |
11327 | return F; |
11328 | } |
11329 | |
11330 | |
11331 | |
11332 | |
11333 | |
11334 | |
11335 | |
11336 | |
11337 | |
11338 | llvm::Function *AMDGPUTargetCodeGenInfo::createEnqueuedBlockKernel( |
11339 | CodeGenFunction &CGF, llvm::Function *Invoke, |
11340 | llvm::Value *BlockLiteral) const { |
11341 | auto &Builder = CGF.Builder; |
11342 | auto &C = CGF.getLLVMContext(); |
11343 | |
11344 | auto *BlockTy = BlockLiteral->getType()->getPointerElementType(); |
11345 | auto *InvokeFT = Invoke->getFunctionType(); |
11346 | llvm::SmallVector<llvm::Type *, 2> ArgTys; |
11347 | llvm::SmallVector<llvm::Metadata *, 8> AddressQuals; |
11348 | llvm::SmallVector<llvm::Metadata *, 8> AccessQuals; |
11349 | llvm::SmallVector<llvm::Metadata *, 8> ArgTypeNames; |
11350 | llvm::SmallVector<llvm::Metadata *, 8> ArgBaseTypeNames; |
11351 | llvm::SmallVector<llvm::Metadata *, 8> ArgTypeQuals; |
11352 | llvm::SmallVector<llvm::Metadata *, 8> ArgNames; |
11353 | |
11354 | ArgTys.push_back(BlockTy); |
11355 | ArgTypeNames.push_back(llvm::MDString::get(C, "__block_literal")); |
11356 | AddressQuals.push_back(llvm::ConstantAsMetadata::get(Builder.getInt32(0))); |
11357 | ArgBaseTypeNames.push_back(llvm::MDString::get(C, "__block_literal")); |
11358 | ArgTypeQuals.push_back(llvm::MDString::get(C, "")); |
11359 | AccessQuals.push_back(llvm::MDString::get(C, "none")); |
11360 | ArgNames.push_back(llvm::MDString::get(C, "block_literal")); |
11361 | for (unsigned I = 1, E = InvokeFT->getNumParams(); I < E; ++I) { |
11362 | ArgTys.push_back(InvokeFT->getParamType(I)); |
11363 | ArgTypeNames.push_back(llvm::MDString::get(C, "void*")); |
11364 | AddressQuals.push_back(llvm::ConstantAsMetadata::get(Builder.getInt32(3))); |
11365 | AccessQuals.push_back(llvm::MDString::get(C, "none")); |
11366 | ArgBaseTypeNames.push_back(llvm::MDString::get(C, "void*")); |
11367 | ArgTypeQuals.push_back(llvm::MDString::get(C, "")); |
11368 | ArgNames.push_back( |
11369 | llvm::MDString::get(C, (Twine("local_arg") + Twine(I)).str())); |
11370 | } |
11371 | std::string Name = Invoke->getName().str() + "_kernel"; |
11372 | auto *FT = llvm::FunctionType::get(llvm::Type::getVoidTy(C), ArgTys, false); |
11373 | auto *F = llvm::Function::Create(FT, llvm::GlobalValue::InternalLinkage, Name, |
11374 | &CGF.CGM.getModule()); |
11375 | F->addFnAttr("enqueued-block"); |
11376 | auto IP = CGF.Builder.saveIP(); |
11377 | auto *BB = llvm::BasicBlock::Create(C, "entry", F); |
11378 | Builder.SetInsertPoint(BB); |
11379 | const auto BlockAlign = CGF.CGM.getDataLayout().getPrefTypeAlign(BlockTy); |
11380 | auto *BlockPtr = Builder.CreateAlloca(BlockTy, nullptr); |
11381 | BlockPtr->setAlignment(BlockAlign); |
11382 | Builder.CreateAlignedStore(F->arg_begin(), BlockPtr, BlockAlign); |
11383 | auto *Cast = Builder.CreatePointerCast(BlockPtr, InvokeFT->getParamType(0)); |
11384 | llvm::SmallVector<llvm::Value *, 2> Args; |
11385 | Args.push_back(Cast); |
11386 | for (auto I = F->arg_begin() + 1, E = F->arg_end(); I != E; ++I) |
11387 | Args.push_back(I); |
11388 | llvm::CallInst *call = Builder.CreateCall(Invoke, Args); |
11389 | call->setCallingConv(Invoke->getCallingConv()); |
11390 | Builder.CreateRetVoid(); |
11391 | Builder.restoreIP(IP); |
11392 | |
11393 | F->setMetadata("kernel_arg_addr_space", llvm::MDNode::get(C, AddressQuals)); |
11394 | F->setMetadata("kernel_arg_access_qual", llvm::MDNode::get(C, AccessQuals)); |
11395 | F->setMetadata("kernel_arg_type", llvm::MDNode::get(C, ArgTypeNames)); |
11396 | F->setMetadata("kernel_arg_base_type", |
11397 | llvm::MDNode::get(C, ArgBaseTypeNames)); |
11398 | F->setMetadata("kernel_arg_type_qual", llvm::MDNode::get(C, ArgTypeQuals)); |
11399 | if (CGF.CGM.getCodeGenOpts().EmitOpenCLArgMetadata) |
11400 | F->setMetadata("kernel_arg_name", llvm::MDNode::get(C, ArgNames)); |
11401 | |
11402 | return F; |
11403 | } |