File: | clang/lib/Sema/SemaChecking.cpp |
Warning: | line 10304, column 7 Called C++ object pointer is null |
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1 | //===- SemaChecking.cpp - Extra Semantic Checking -------------------------===// | |||
2 | // | |||
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | |||
4 | // See https://llvm.org/LICENSE.txt for license information. | |||
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |||
6 | // | |||
7 | //===----------------------------------------------------------------------===// | |||
8 | // | |||
9 | // This file implements extra semantic analysis beyond what is enforced | |||
10 | // by the C type system. | |||
11 | // | |||
12 | //===----------------------------------------------------------------------===// | |||
13 | ||||
14 | #include "clang/AST/APValue.h" | |||
15 | #include "clang/AST/ASTContext.h" | |||
16 | #include "clang/AST/Attr.h" | |||
17 | #include "clang/AST/AttrIterator.h" | |||
18 | #include "clang/AST/CharUnits.h" | |||
19 | #include "clang/AST/Decl.h" | |||
20 | #include "clang/AST/DeclBase.h" | |||
21 | #include "clang/AST/DeclCXX.h" | |||
22 | #include "clang/AST/DeclObjC.h" | |||
23 | #include "clang/AST/DeclarationName.h" | |||
24 | #include "clang/AST/EvaluatedExprVisitor.h" | |||
25 | #include "clang/AST/Expr.h" | |||
26 | #include "clang/AST/ExprCXX.h" | |||
27 | #include "clang/AST/ExprObjC.h" | |||
28 | #include "clang/AST/ExprOpenMP.h" | |||
29 | #include "clang/AST/FormatString.h" | |||
30 | #include "clang/AST/NSAPI.h" | |||
31 | #include "clang/AST/NonTrivialTypeVisitor.h" | |||
32 | #include "clang/AST/OperationKinds.h" | |||
33 | #include "clang/AST/RecordLayout.h" | |||
34 | #include "clang/AST/Stmt.h" | |||
35 | #include "clang/AST/TemplateBase.h" | |||
36 | #include "clang/AST/Type.h" | |||
37 | #include "clang/AST/TypeLoc.h" | |||
38 | #include "clang/AST/UnresolvedSet.h" | |||
39 | #include "clang/Basic/AddressSpaces.h" | |||
40 | #include "clang/Basic/CharInfo.h" | |||
41 | #include "clang/Basic/Diagnostic.h" | |||
42 | #include "clang/Basic/IdentifierTable.h" | |||
43 | #include "clang/Basic/LLVM.h" | |||
44 | #include "clang/Basic/LangOptions.h" | |||
45 | #include "clang/Basic/OpenCLOptions.h" | |||
46 | #include "clang/Basic/OperatorKinds.h" | |||
47 | #include "clang/Basic/PartialDiagnostic.h" | |||
48 | #include "clang/Basic/SourceLocation.h" | |||
49 | #include "clang/Basic/SourceManager.h" | |||
50 | #include "clang/Basic/Specifiers.h" | |||
51 | #include "clang/Basic/SyncScope.h" | |||
52 | #include "clang/Basic/TargetBuiltins.h" | |||
53 | #include "clang/Basic/TargetCXXABI.h" | |||
54 | #include "clang/Basic/TargetInfo.h" | |||
55 | #include "clang/Basic/TypeTraits.h" | |||
56 | #include "clang/Lex/Lexer.h" // TODO: Extract static functions to fix layering. | |||
57 | #include "clang/Sema/Initialization.h" | |||
58 | #include "clang/Sema/Lookup.h" | |||
59 | #include "clang/Sema/Ownership.h" | |||
60 | #include "clang/Sema/Scope.h" | |||
61 | #include "clang/Sema/ScopeInfo.h" | |||
62 | #include "clang/Sema/Sema.h" | |||
63 | #include "clang/Sema/SemaInternal.h" | |||
64 | #include "llvm/ADT/APFloat.h" | |||
65 | #include "llvm/ADT/APInt.h" | |||
66 | #include "llvm/ADT/APSInt.h" | |||
67 | #include "llvm/ADT/ArrayRef.h" | |||
68 | #include "llvm/ADT/DenseMap.h" | |||
69 | #include "llvm/ADT/FoldingSet.h" | |||
70 | #include "llvm/ADT/None.h" | |||
71 | #include "llvm/ADT/Optional.h" | |||
72 | #include "llvm/ADT/STLExtras.h" | |||
73 | #include "llvm/ADT/SmallBitVector.h" | |||
74 | #include "llvm/ADT/SmallPtrSet.h" | |||
75 | #include "llvm/ADT/SmallString.h" | |||
76 | #include "llvm/ADT/SmallVector.h" | |||
77 | #include "llvm/ADT/StringRef.h" | |||
78 | #include "llvm/ADT/StringSet.h" | |||
79 | #include "llvm/ADT/StringSwitch.h" | |||
80 | #include "llvm/ADT/Triple.h" | |||
81 | #include "llvm/Support/AtomicOrdering.h" | |||
82 | #include "llvm/Support/Casting.h" | |||
83 | #include "llvm/Support/Compiler.h" | |||
84 | #include "llvm/Support/ConvertUTF.h" | |||
85 | #include "llvm/Support/ErrorHandling.h" | |||
86 | #include "llvm/Support/Format.h" | |||
87 | #include "llvm/Support/Locale.h" | |||
88 | #include "llvm/Support/MathExtras.h" | |||
89 | #include "llvm/Support/SaveAndRestore.h" | |||
90 | #include "llvm/Support/raw_ostream.h" | |||
91 | #include <algorithm> | |||
92 | #include <bitset> | |||
93 | #include <cassert> | |||
94 | #include <cstddef> | |||
95 | #include <cstdint> | |||
96 | #include <functional> | |||
97 | #include <limits> | |||
98 | #include <string> | |||
99 | #include <tuple> | |||
100 | #include <utility> | |||
101 | ||||
102 | using namespace clang; | |||
103 | using namespace sema; | |||
104 | ||||
105 | SourceLocation Sema::getLocationOfStringLiteralByte(const StringLiteral *SL, | |||
106 | unsigned ByteNo) const { | |||
107 | return SL->getLocationOfByte(ByteNo, getSourceManager(), LangOpts, | |||
108 | Context.getTargetInfo()); | |||
109 | } | |||
110 | ||||
111 | /// Checks that a call expression's argument count is the desired number. | |||
112 | /// This is useful when doing custom type-checking. Returns true on error. | |||
113 | static bool checkArgCount(Sema &S, CallExpr *call, unsigned desiredArgCount) { | |||
114 | unsigned argCount = call->getNumArgs(); | |||
115 | if (argCount == desiredArgCount) return false; | |||
116 | ||||
117 | if (argCount < desiredArgCount) | |||
118 | return S.Diag(call->getEndLoc(), diag::err_typecheck_call_too_few_args) | |||
119 | << 0 /*function call*/ << desiredArgCount << argCount | |||
120 | << call->getSourceRange(); | |||
121 | ||||
122 | // Highlight all the excess arguments. | |||
123 | SourceRange range(call->getArg(desiredArgCount)->getBeginLoc(), | |||
124 | call->getArg(argCount - 1)->getEndLoc()); | |||
125 | ||||
126 | return S.Diag(range.getBegin(), diag::err_typecheck_call_too_many_args) | |||
127 | << 0 /*function call*/ << desiredArgCount << argCount | |||
128 | << call->getArg(1)->getSourceRange(); | |||
129 | } | |||
130 | ||||
131 | /// Check that the first argument to __builtin_annotation is an integer | |||
132 | /// and the second argument is a non-wide string literal. | |||
133 | static bool SemaBuiltinAnnotation(Sema &S, CallExpr *TheCall) { | |||
134 | if (checkArgCount(S, TheCall, 2)) | |||
135 | return true; | |||
136 | ||||
137 | // First argument should be an integer. | |||
138 | Expr *ValArg = TheCall->getArg(0); | |||
139 | QualType Ty = ValArg->getType(); | |||
140 | if (!Ty->isIntegerType()) { | |||
141 | S.Diag(ValArg->getBeginLoc(), diag::err_builtin_annotation_first_arg) | |||
142 | << ValArg->getSourceRange(); | |||
143 | return true; | |||
144 | } | |||
145 | ||||
146 | // Second argument should be a constant string. | |||
147 | Expr *StrArg = TheCall->getArg(1)->IgnoreParenCasts(); | |||
148 | StringLiteral *Literal = dyn_cast<StringLiteral>(StrArg); | |||
149 | if (!Literal || !Literal->isAscii()) { | |||
150 | S.Diag(StrArg->getBeginLoc(), diag::err_builtin_annotation_second_arg) | |||
151 | << StrArg->getSourceRange(); | |||
152 | return true; | |||
153 | } | |||
154 | ||||
155 | TheCall->setType(Ty); | |||
156 | return false; | |||
157 | } | |||
158 | ||||
159 | static bool SemaBuiltinMSVCAnnotation(Sema &S, CallExpr *TheCall) { | |||
160 | // We need at least one argument. | |||
161 | if (TheCall->getNumArgs() < 1) { | |||
162 | S.Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args_at_least) | |||
163 | << 0 << 1 << TheCall->getNumArgs() | |||
164 | << TheCall->getCallee()->getSourceRange(); | |||
165 | return true; | |||
166 | } | |||
167 | ||||
168 | // All arguments should be wide string literals. | |||
169 | for (Expr *Arg : TheCall->arguments()) { | |||
170 | auto *Literal = dyn_cast<StringLiteral>(Arg->IgnoreParenCasts()); | |||
171 | if (!Literal || !Literal->isWide()) { | |||
172 | S.Diag(Arg->getBeginLoc(), diag::err_msvc_annotation_wide_str) | |||
173 | << Arg->getSourceRange(); | |||
174 | return true; | |||
175 | } | |||
176 | } | |||
177 | ||||
178 | return false; | |||
179 | } | |||
180 | ||||
181 | /// Check that the argument to __builtin_addressof is a glvalue, and set the | |||
182 | /// result type to the corresponding pointer type. | |||
183 | static bool SemaBuiltinAddressof(Sema &S, CallExpr *TheCall) { | |||
184 | if (checkArgCount(S, TheCall, 1)) | |||
185 | return true; | |||
186 | ||||
187 | ExprResult Arg(TheCall->getArg(0)); | |||
188 | QualType ResultType = S.CheckAddressOfOperand(Arg, TheCall->getBeginLoc()); | |||
189 | if (ResultType.isNull()) | |||
190 | return true; | |||
191 | ||||
192 | TheCall->setArg(0, Arg.get()); | |||
193 | TheCall->setType(ResultType); | |||
194 | return false; | |||
195 | } | |||
196 | ||||
197 | /// Check the number of arguments and set the result type to | |||
198 | /// the argument type. | |||
199 | static bool SemaBuiltinPreserveAI(Sema &S, CallExpr *TheCall) { | |||
200 | if (checkArgCount(S, TheCall, 1)) | |||
201 | return true; | |||
202 | ||||
203 | TheCall->setType(TheCall->getArg(0)->getType()); | |||
204 | return false; | |||
205 | } | |||
206 | ||||
207 | /// Check that the value argument for __builtin_is_aligned(value, alignment) and | |||
208 | /// __builtin_aligned_{up,down}(value, alignment) is an integer or a pointer | |||
209 | /// type (but not a function pointer) and that the alignment is a power-of-two. | |||
210 | static bool SemaBuiltinAlignment(Sema &S, CallExpr *TheCall, unsigned ID) { | |||
211 | if (checkArgCount(S, TheCall, 2)) | |||
212 | return true; | |||
213 | ||||
214 | clang::Expr *Source = TheCall->getArg(0); | |||
215 | bool IsBooleanAlignBuiltin = ID == Builtin::BI__builtin_is_aligned; | |||
216 | ||||
217 | auto IsValidIntegerType = [](QualType Ty) { | |||
218 | return Ty->isIntegerType() && !Ty->isEnumeralType() && !Ty->isBooleanType(); | |||
219 | }; | |||
220 | QualType SrcTy = Source->getType(); | |||
221 | // We should also be able to use it with arrays (but not functions!). | |||
222 | if (SrcTy->canDecayToPointerType() && SrcTy->isArrayType()) { | |||
223 | SrcTy = S.Context.getDecayedType(SrcTy); | |||
224 | } | |||
225 | if ((!SrcTy->isPointerType() && !IsValidIntegerType(SrcTy)) || | |||
226 | SrcTy->isFunctionPointerType()) { | |||
227 | // FIXME: this is not quite the right error message since we don't allow | |||
228 | // floating point types, or member pointers. | |||
229 | S.Diag(Source->getExprLoc(), diag::err_typecheck_expect_scalar_operand) | |||
230 | << SrcTy; | |||
231 | return true; | |||
232 | } | |||
233 | ||||
234 | clang::Expr *AlignOp = TheCall->getArg(1); | |||
235 | if (!IsValidIntegerType(AlignOp->getType())) { | |||
236 | S.Diag(AlignOp->getExprLoc(), diag::err_typecheck_expect_int) | |||
237 | << AlignOp->getType(); | |||
238 | return true; | |||
239 | } | |||
240 | Expr::EvalResult AlignResult; | |||
241 | unsigned MaxAlignmentBits = S.Context.getIntWidth(SrcTy) - 1; | |||
242 | // We can't check validity of alignment if it is value dependent. | |||
243 | if (!AlignOp->isValueDependent() && | |||
244 | AlignOp->EvaluateAsInt(AlignResult, S.Context, | |||
245 | Expr::SE_AllowSideEffects)) { | |||
246 | llvm::APSInt AlignValue = AlignResult.Val.getInt(); | |||
247 | llvm::APSInt MaxValue( | |||
248 | llvm::APInt::getOneBitSet(MaxAlignmentBits + 1, MaxAlignmentBits)); | |||
249 | if (AlignValue < 1) { | |||
250 | S.Diag(AlignOp->getExprLoc(), diag::err_alignment_too_small) << 1; | |||
251 | return true; | |||
252 | } | |||
253 | if (llvm::APSInt::compareValues(AlignValue, MaxValue) > 0) { | |||
254 | S.Diag(AlignOp->getExprLoc(), diag::err_alignment_too_big) | |||
255 | << MaxValue.toString(10); | |||
256 | return true; | |||
257 | } | |||
258 | if (!AlignValue.isPowerOf2()) { | |||
259 | S.Diag(AlignOp->getExprLoc(), diag::err_alignment_not_power_of_two); | |||
260 | return true; | |||
261 | } | |||
262 | if (AlignValue == 1) { | |||
263 | S.Diag(AlignOp->getExprLoc(), diag::warn_alignment_builtin_useless) | |||
264 | << IsBooleanAlignBuiltin; | |||
265 | } | |||
266 | } | |||
267 | ||||
268 | ExprResult SrcArg = S.PerformCopyInitialization( | |||
269 | InitializedEntity::InitializeParameter(S.Context, SrcTy, false), | |||
270 | SourceLocation(), Source); | |||
271 | if (SrcArg.isInvalid()) | |||
272 | return true; | |||
273 | TheCall->setArg(0, SrcArg.get()); | |||
274 | ExprResult AlignArg = | |||
275 | S.PerformCopyInitialization(InitializedEntity::InitializeParameter( | |||
276 | S.Context, AlignOp->getType(), false), | |||
277 | SourceLocation(), AlignOp); | |||
278 | if (AlignArg.isInvalid()) | |||
279 | return true; | |||
280 | TheCall->setArg(1, AlignArg.get()); | |||
281 | // For align_up/align_down, the return type is the same as the (potentially | |||
282 | // decayed) argument type including qualifiers. For is_aligned(), the result | |||
283 | // is always bool. | |||
284 | TheCall->setType(IsBooleanAlignBuiltin ? S.Context.BoolTy : SrcTy); | |||
285 | return false; | |||
286 | } | |||
287 | ||||
288 | static bool SemaBuiltinOverflow(Sema &S, CallExpr *TheCall, | |||
289 | unsigned BuiltinID) { | |||
290 | if (checkArgCount(S, TheCall, 3)) | |||
291 | return true; | |||
292 | ||||
293 | // First two arguments should be integers. | |||
294 | for (unsigned I = 0; I < 2; ++I) { | |||
295 | ExprResult Arg = S.DefaultFunctionArrayLvalueConversion(TheCall->getArg(I)); | |||
296 | if (Arg.isInvalid()) return true; | |||
297 | TheCall->setArg(I, Arg.get()); | |||
298 | ||||
299 | QualType Ty = Arg.get()->getType(); | |||
300 | if (!Ty->isIntegerType()) { | |||
301 | S.Diag(Arg.get()->getBeginLoc(), diag::err_overflow_builtin_must_be_int) | |||
302 | << Ty << Arg.get()->getSourceRange(); | |||
303 | return true; | |||
304 | } | |||
305 | } | |||
306 | ||||
307 | // Third argument should be a pointer to a non-const integer. | |||
308 | // IRGen correctly handles volatile, restrict, and address spaces, and | |||
309 | // the other qualifiers aren't possible. | |||
310 | { | |||
311 | ExprResult Arg = S.DefaultFunctionArrayLvalueConversion(TheCall->getArg(2)); | |||
312 | if (Arg.isInvalid()) return true; | |||
313 | TheCall->setArg(2, Arg.get()); | |||
314 | ||||
315 | QualType Ty = Arg.get()->getType(); | |||
316 | const auto *PtrTy = Ty->getAs<PointerType>(); | |||
317 | if (!PtrTy || | |||
318 | !PtrTy->getPointeeType()->isIntegerType() || | |||
319 | PtrTy->getPointeeType().isConstQualified()) { | |||
320 | S.Diag(Arg.get()->getBeginLoc(), | |||
321 | diag::err_overflow_builtin_must_be_ptr_int) | |||
322 | << Ty << Arg.get()->getSourceRange(); | |||
323 | return true; | |||
324 | } | |||
325 | } | |||
326 | ||||
327 | // Disallow signed ExtIntType args larger than 128 bits to mul function until | |||
328 | // we improve backend support. | |||
329 | if (BuiltinID == Builtin::BI__builtin_mul_overflow) { | |||
330 | for (unsigned I = 0; I < 3; ++I) { | |||
331 | const auto Arg = TheCall->getArg(I); | |||
332 | // Third argument will be a pointer. | |||
333 | auto Ty = I < 2 ? Arg->getType() : Arg->getType()->getPointeeType(); | |||
334 | if (Ty->isExtIntType() && Ty->isSignedIntegerType() && | |||
335 | S.getASTContext().getIntWidth(Ty) > 128) | |||
336 | return S.Diag(Arg->getBeginLoc(), | |||
337 | diag::err_overflow_builtin_ext_int_max_size) | |||
338 | << 128; | |||
339 | } | |||
340 | } | |||
341 | ||||
342 | return false; | |||
343 | } | |||
344 | ||||
345 | static bool SemaBuiltinCallWithStaticChain(Sema &S, CallExpr *BuiltinCall) { | |||
346 | if (checkArgCount(S, BuiltinCall, 2)) | |||
347 | return true; | |||
348 | ||||
349 | SourceLocation BuiltinLoc = BuiltinCall->getBeginLoc(); | |||
350 | Expr *Builtin = BuiltinCall->getCallee()->IgnoreImpCasts(); | |||
351 | Expr *Call = BuiltinCall->getArg(0); | |||
352 | Expr *Chain = BuiltinCall->getArg(1); | |||
353 | ||||
354 | if (Call->getStmtClass() != Stmt::CallExprClass) { | |||
355 | S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_not_call) | |||
356 | << Call->getSourceRange(); | |||
357 | return true; | |||
358 | } | |||
359 | ||||
360 | auto CE = cast<CallExpr>(Call); | |||
361 | if (CE->getCallee()->getType()->isBlockPointerType()) { | |||
362 | S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_block_call) | |||
363 | << Call->getSourceRange(); | |||
364 | return true; | |||
365 | } | |||
366 | ||||
367 | const Decl *TargetDecl = CE->getCalleeDecl(); | |||
368 | if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(TargetDecl)) | |||
369 | if (FD->getBuiltinID()) { | |||
370 | S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_builtin_call) | |||
371 | << Call->getSourceRange(); | |||
372 | return true; | |||
373 | } | |||
374 | ||||
375 | if (isa<CXXPseudoDestructorExpr>(CE->getCallee()->IgnoreParens())) { | |||
376 | S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_pdtor_call) | |||
377 | << Call->getSourceRange(); | |||
378 | return true; | |||
379 | } | |||
380 | ||||
381 | ExprResult ChainResult = S.UsualUnaryConversions(Chain); | |||
382 | if (ChainResult.isInvalid()) | |||
383 | return true; | |||
384 | if (!ChainResult.get()->getType()->isPointerType()) { | |||
385 | S.Diag(BuiltinLoc, diag::err_second_argument_to_cwsc_not_pointer) | |||
386 | << Chain->getSourceRange(); | |||
387 | return true; | |||
388 | } | |||
389 | ||||
390 | QualType ReturnTy = CE->getCallReturnType(S.Context); | |||
391 | QualType ArgTys[2] = { ReturnTy, ChainResult.get()->getType() }; | |||
392 | QualType BuiltinTy = S.Context.getFunctionType( | |||
393 | ReturnTy, ArgTys, FunctionProtoType::ExtProtoInfo()); | |||
394 | QualType BuiltinPtrTy = S.Context.getPointerType(BuiltinTy); | |||
395 | ||||
396 | Builtin = | |||
397 | S.ImpCastExprToType(Builtin, BuiltinPtrTy, CK_BuiltinFnToFnPtr).get(); | |||
398 | ||||
399 | BuiltinCall->setType(CE->getType()); | |||
400 | BuiltinCall->setValueKind(CE->getValueKind()); | |||
401 | BuiltinCall->setObjectKind(CE->getObjectKind()); | |||
402 | BuiltinCall->setCallee(Builtin); | |||
403 | BuiltinCall->setArg(1, ChainResult.get()); | |||
404 | ||||
405 | return false; | |||
406 | } | |||
407 | ||||
408 | namespace { | |||
409 | ||||
410 | class EstimateSizeFormatHandler | |||
411 | : public analyze_format_string::FormatStringHandler { | |||
412 | size_t Size; | |||
413 | ||||
414 | public: | |||
415 | EstimateSizeFormatHandler(StringRef Format) | |||
416 | : Size(std::min(Format.find(0), Format.size()) + | |||
417 | 1 /* null byte always written by sprintf */) {} | |||
418 | ||||
419 | bool HandlePrintfSpecifier(const analyze_printf::PrintfSpecifier &FS, | |||
420 | const char *, unsigned SpecifierLen) override { | |||
421 | ||||
422 | const size_t FieldWidth = computeFieldWidth(FS); | |||
423 | const size_t Precision = computePrecision(FS); | |||
424 | ||||
425 | // The actual format. | |||
426 | switch (FS.getConversionSpecifier().getKind()) { | |||
427 | // Just a char. | |||
428 | case analyze_format_string::ConversionSpecifier::cArg: | |||
429 | case analyze_format_string::ConversionSpecifier::CArg: | |||
430 | Size += std::max(FieldWidth, (size_t)1); | |||
431 | break; | |||
432 | // Just an integer. | |||
433 | case analyze_format_string::ConversionSpecifier::dArg: | |||
434 | case analyze_format_string::ConversionSpecifier::DArg: | |||
435 | case analyze_format_string::ConversionSpecifier::iArg: | |||
436 | case analyze_format_string::ConversionSpecifier::oArg: | |||
437 | case analyze_format_string::ConversionSpecifier::OArg: | |||
438 | case analyze_format_string::ConversionSpecifier::uArg: | |||
439 | case analyze_format_string::ConversionSpecifier::UArg: | |||
440 | case analyze_format_string::ConversionSpecifier::xArg: | |||
441 | case analyze_format_string::ConversionSpecifier::XArg: | |||
442 | Size += std::max(FieldWidth, Precision); | |||
443 | break; | |||
444 | ||||
445 | // %g style conversion switches between %f or %e style dynamically. | |||
446 | // %f always takes less space, so default to it. | |||
447 | case analyze_format_string::ConversionSpecifier::gArg: | |||
448 | case analyze_format_string::ConversionSpecifier::GArg: | |||
449 | ||||
450 | // Floating point number in the form '[+]ddd.ddd'. | |||
451 | case analyze_format_string::ConversionSpecifier::fArg: | |||
452 | case analyze_format_string::ConversionSpecifier::FArg: | |||
453 | Size += std::max(FieldWidth, 1 /* integer part */ + | |||
454 | (Precision ? 1 + Precision | |||
455 | : 0) /* period + decimal */); | |||
456 | break; | |||
457 | ||||
458 | // Floating point number in the form '[-]d.ddde[+-]dd'. | |||
459 | case analyze_format_string::ConversionSpecifier::eArg: | |||
460 | case analyze_format_string::ConversionSpecifier::EArg: | |||
461 | Size += | |||
462 | std::max(FieldWidth, | |||
463 | 1 /* integer part */ + | |||
464 | (Precision ? 1 + Precision : 0) /* period + decimal */ + | |||
465 | 1 /* e or E letter */ + 2 /* exponent */); | |||
466 | break; | |||
467 | ||||
468 | // Floating point number in the form '[-]0xh.hhhhp±dd'. | |||
469 | case analyze_format_string::ConversionSpecifier::aArg: | |||
470 | case analyze_format_string::ConversionSpecifier::AArg: | |||
471 | Size += | |||
472 | std::max(FieldWidth, | |||
473 | 2 /* 0x */ + 1 /* integer part */ + | |||
474 | (Precision ? 1 + Precision : 0) /* period + decimal */ + | |||
475 | 1 /* p or P letter */ + 1 /* + or - */ + 1 /* value */); | |||
476 | break; | |||
477 | ||||
478 | // Just a string. | |||
479 | case analyze_format_string::ConversionSpecifier::sArg: | |||
480 | case analyze_format_string::ConversionSpecifier::SArg: | |||
481 | Size += FieldWidth; | |||
482 | break; | |||
483 | ||||
484 | // Just a pointer in the form '0xddd'. | |||
485 | case analyze_format_string::ConversionSpecifier::pArg: | |||
486 | Size += std::max(FieldWidth, 2 /* leading 0x */ + Precision); | |||
487 | break; | |||
488 | ||||
489 | // A plain percent. | |||
490 | case analyze_format_string::ConversionSpecifier::PercentArg: | |||
491 | Size += 1; | |||
492 | break; | |||
493 | ||||
494 | default: | |||
495 | break; | |||
496 | } | |||
497 | ||||
498 | Size += FS.hasPlusPrefix() || FS.hasSpacePrefix(); | |||
499 | ||||
500 | if (FS.hasAlternativeForm()) { | |||
501 | switch (FS.getConversionSpecifier().getKind()) { | |||
502 | default: | |||
503 | break; | |||
504 | // Force a leading '0'. | |||
505 | case analyze_format_string::ConversionSpecifier::oArg: | |||
506 | Size += 1; | |||
507 | break; | |||
508 | // Force a leading '0x'. | |||
509 | case analyze_format_string::ConversionSpecifier::xArg: | |||
510 | case analyze_format_string::ConversionSpecifier::XArg: | |||
511 | Size += 2; | |||
512 | break; | |||
513 | // Force a period '.' before decimal, even if precision is 0. | |||
514 | case analyze_format_string::ConversionSpecifier::aArg: | |||
515 | case analyze_format_string::ConversionSpecifier::AArg: | |||
516 | case analyze_format_string::ConversionSpecifier::eArg: | |||
517 | case analyze_format_string::ConversionSpecifier::EArg: | |||
518 | case analyze_format_string::ConversionSpecifier::fArg: | |||
519 | case analyze_format_string::ConversionSpecifier::FArg: | |||
520 | case analyze_format_string::ConversionSpecifier::gArg: | |||
521 | case analyze_format_string::ConversionSpecifier::GArg: | |||
522 | Size += (Precision ? 0 : 1); | |||
523 | break; | |||
524 | } | |||
525 | } | |||
526 | assert(SpecifierLen <= Size && "no underflow")((SpecifierLen <= Size && "no underflow") ? static_cast <void> (0) : __assert_fail ("SpecifierLen <= Size && \"no underflow\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 526, __PRETTY_FUNCTION__)); | |||
527 | Size -= SpecifierLen; | |||
528 | return true; | |||
529 | } | |||
530 | ||||
531 | size_t getSizeLowerBound() const { return Size; } | |||
532 | ||||
533 | private: | |||
534 | static size_t computeFieldWidth(const analyze_printf::PrintfSpecifier &FS) { | |||
535 | const analyze_format_string::OptionalAmount &FW = FS.getFieldWidth(); | |||
536 | size_t FieldWidth = 0; | |||
537 | if (FW.getHowSpecified() == analyze_format_string::OptionalAmount::Constant) | |||
538 | FieldWidth = FW.getConstantAmount(); | |||
539 | return FieldWidth; | |||
540 | } | |||
541 | ||||
542 | static size_t computePrecision(const analyze_printf::PrintfSpecifier &FS) { | |||
543 | const analyze_format_string::OptionalAmount &FW = FS.getPrecision(); | |||
544 | size_t Precision = 0; | |||
545 | ||||
546 | // See man 3 printf for default precision value based on the specifier. | |||
547 | switch (FW.getHowSpecified()) { | |||
548 | case analyze_format_string::OptionalAmount::NotSpecified: | |||
549 | switch (FS.getConversionSpecifier().getKind()) { | |||
550 | default: | |||
551 | break; | |||
552 | case analyze_format_string::ConversionSpecifier::dArg: // %d | |||
553 | case analyze_format_string::ConversionSpecifier::DArg: // %D | |||
554 | case analyze_format_string::ConversionSpecifier::iArg: // %i | |||
555 | Precision = 1; | |||
556 | break; | |||
557 | case analyze_format_string::ConversionSpecifier::oArg: // %d | |||
558 | case analyze_format_string::ConversionSpecifier::OArg: // %D | |||
559 | case analyze_format_string::ConversionSpecifier::uArg: // %d | |||
560 | case analyze_format_string::ConversionSpecifier::UArg: // %D | |||
561 | case analyze_format_string::ConversionSpecifier::xArg: // %d | |||
562 | case analyze_format_string::ConversionSpecifier::XArg: // %D | |||
563 | Precision = 1; | |||
564 | break; | |||
565 | case analyze_format_string::ConversionSpecifier::fArg: // %f | |||
566 | case analyze_format_string::ConversionSpecifier::FArg: // %F | |||
567 | case analyze_format_string::ConversionSpecifier::eArg: // %e | |||
568 | case analyze_format_string::ConversionSpecifier::EArg: // %E | |||
569 | case analyze_format_string::ConversionSpecifier::gArg: // %g | |||
570 | case analyze_format_string::ConversionSpecifier::GArg: // %G | |||
571 | Precision = 6; | |||
572 | break; | |||
573 | case analyze_format_string::ConversionSpecifier::pArg: // %d | |||
574 | Precision = 1; | |||
575 | break; | |||
576 | } | |||
577 | break; | |||
578 | case analyze_format_string::OptionalAmount::Constant: | |||
579 | Precision = FW.getConstantAmount(); | |||
580 | break; | |||
581 | default: | |||
582 | break; | |||
583 | } | |||
584 | return Precision; | |||
585 | } | |||
586 | }; | |||
587 | ||||
588 | } // namespace | |||
589 | ||||
590 | /// Check a call to BuiltinID for buffer overflows. If BuiltinID is a | |||
591 | /// __builtin_*_chk function, then use the object size argument specified in the | |||
592 | /// source. Otherwise, infer the object size using __builtin_object_size. | |||
593 | void Sema::checkFortifiedBuiltinMemoryFunction(FunctionDecl *FD, | |||
594 | CallExpr *TheCall) { | |||
595 | // FIXME: There are some more useful checks we could be doing here: | |||
596 | // - Evaluate strlen of strcpy arguments, use as object size. | |||
597 | ||||
598 | if (TheCall->isValueDependent() || TheCall->isTypeDependent() || | |||
599 | isConstantEvaluated()) | |||
600 | return; | |||
601 | ||||
602 | unsigned BuiltinID = FD->getBuiltinID(/*ConsiderWrappers=*/true); | |||
603 | if (!BuiltinID) | |||
604 | return; | |||
605 | ||||
606 | const TargetInfo &TI = getASTContext().getTargetInfo(); | |||
607 | unsigned SizeTypeWidth = TI.getTypeWidth(TI.getSizeType()); | |||
608 | ||||
609 | unsigned DiagID = 0; | |||
610 | bool IsChkVariant = false; | |||
611 | Optional<llvm::APSInt> UsedSize; | |||
612 | unsigned SizeIndex, ObjectIndex; | |||
613 | switch (BuiltinID) { | |||
614 | default: | |||
615 | return; | |||
616 | case Builtin::BIsprintf: | |||
617 | case Builtin::BI__builtin___sprintf_chk: { | |||
618 | size_t FormatIndex = BuiltinID == Builtin::BIsprintf ? 1 : 3; | |||
619 | auto *FormatExpr = TheCall->getArg(FormatIndex)->IgnoreParenImpCasts(); | |||
620 | ||||
621 | if (auto *Format = dyn_cast<StringLiteral>(FormatExpr)) { | |||
622 | ||||
623 | if (!Format->isAscii() && !Format->isUTF8()) | |||
624 | return; | |||
625 | ||||
626 | StringRef FormatStrRef = Format->getString(); | |||
627 | EstimateSizeFormatHandler H(FormatStrRef); | |||
628 | const char *FormatBytes = FormatStrRef.data(); | |||
629 | const ConstantArrayType *T = | |||
630 | Context.getAsConstantArrayType(Format->getType()); | |||
631 | assert(T && "String literal not of constant array type!")((T && "String literal not of constant array type!") ? static_cast<void> (0) : __assert_fail ("T && \"String literal not of constant array type!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 631, __PRETTY_FUNCTION__)); | |||
632 | size_t TypeSize = T->getSize().getZExtValue(); | |||
633 | ||||
634 | // In case there's a null byte somewhere. | |||
635 | size_t StrLen = | |||
636 | std::min(std::max(TypeSize, size_t(1)) - 1, FormatStrRef.find(0)); | |||
637 | if (!analyze_format_string::ParsePrintfString( | |||
638 | H, FormatBytes, FormatBytes + StrLen, getLangOpts(), | |||
639 | Context.getTargetInfo(), false)) { | |||
640 | DiagID = diag::warn_fortify_source_format_overflow; | |||
641 | UsedSize = llvm::APSInt::getUnsigned(H.getSizeLowerBound()) | |||
642 | .extOrTrunc(SizeTypeWidth); | |||
643 | if (BuiltinID == Builtin::BI__builtin___sprintf_chk) { | |||
644 | IsChkVariant = true; | |||
645 | ObjectIndex = 2; | |||
646 | } else { | |||
647 | IsChkVariant = false; | |||
648 | ObjectIndex = 0; | |||
649 | } | |||
650 | break; | |||
651 | } | |||
652 | } | |||
653 | return; | |||
654 | } | |||
655 | case Builtin::BI__builtin___memcpy_chk: | |||
656 | case Builtin::BI__builtin___memmove_chk: | |||
657 | case Builtin::BI__builtin___memset_chk: | |||
658 | // case Builtin::BI__builtin___strlcat_chk: | |||
659 | // case Builtin::BI__builtin___strlcpy_chk: | |||
660 | case Builtin::BI__builtin___strncat_chk: | |||
661 | case Builtin::BI__builtin___strncpy_chk: | |||
662 | case Builtin::BI__builtin___stpncpy_chk: | |||
663 | case Builtin::BI__builtin___memccpy_chk: | |||
664 | case Builtin::BI__builtin___mempcpy_chk: { | |||
665 | DiagID = diag::warn_builtin_chk_overflow; | |||
666 | IsChkVariant = true; | |||
667 | SizeIndex = TheCall->getNumArgs() - 2; | |||
668 | ObjectIndex = TheCall->getNumArgs() - 1; | |||
669 | break; | |||
670 | } | |||
671 | ||||
672 | case Builtin::BI__builtin___snprintf_chk: | |||
673 | case Builtin::BI__builtin___vsnprintf_chk: { | |||
674 | DiagID = diag::warn_builtin_chk_overflow; | |||
675 | IsChkVariant = true; | |||
676 | SizeIndex = 1; | |||
677 | ObjectIndex = 3; | |||
678 | break; | |||
679 | } | |||
680 | ||||
681 | case Builtin::BIstrncat: | |||
682 | case Builtin::BI__builtin_strncat: | |||
683 | case Builtin::BIstrncpy: | |||
684 | case Builtin::BI__builtin_strncpy: | |||
685 | case Builtin::BIstpncpy: | |||
686 | case Builtin::BI__builtin_stpncpy: { | |||
687 | // Whether these functions overflow depends on the runtime strlen of the | |||
688 | // string, not just the buffer size, so emitting the "always overflow" | |||
689 | // diagnostic isn't quite right. We should still diagnose passing a buffer | |||
690 | // size larger than the destination buffer though; this is a runtime abort | |||
691 | // in _FORTIFY_SOURCE mode, and is quite suspicious otherwise. | |||
692 | DiagID = diag::warn_fortify_source_size_mismatch; | |||
693 | SizeIndex = TheCall->getNumArgs() - 1; | |||
694 | ObjectIndex = 0; | |||
695 | break; | |||
696 | } | |||
697 | ||||
698 | case Builtin::BImemcpy: | |||
699 | case Builtin::BI__builtin_memcpy: | |||
700 | case Builtin::BImemmove: | |||
701 | case Builtin::BI__builtin_memmove: | |||
702 | case Builtin::BImemset: | |||
703 | case Builtin::BI__builtin_memset: | |||
704 | case Builtin::BImempcpy: | |||
705 | case Builtin::BI__builtin_mempcpy: { | |||
706 | DiagID = diag::warn_fortify_source_overflow; | |||
707 | SizeIndex = TheCall->getNumArgs() - 1; | |||
708 | ObjectIndex = 0; | |||
709 | break; | |||
710 | } | |||
711 | case Builtin::BIsnprintf: | |||
712 | case Builtin::BI__builtin_snprintf: | |||
713 | case Builtin::BIvsnprintf: | |||
714 | case Builtin::BI__builtin_vsnprintf: { | |||
715 | DiagID = diag::warn_fortify_source_size_mismatch; | |||
716 | SizeIndex = 1; | |||
717 | ObjectIndex = 0; | |||
718 | break; | |||
719 | } | |||
720 | } | |||
721 | ||||
722 | llvm::APSInt ObjectSize; | |||
723 | // For __builtin___*_chk, the object size is explicitly provided by the caller | |||
724 | // (usually using __builtin_object_size). Use that value to check this call. | |||
725 | if (IsChkVariant) { | |||
726 | Expr::EvalResult Result; | |||
727 | Expr *SizeArg = TheCall->getArg(ObjectIndex); | |||
728 | if (!SizeArg->EvaluateAsInt(Result, getASTContext())) | |||
729 | return; | |||
730 | ObjectSize = Result.Val.getInt(); | |||
731 | ||||
732 | // Otherwise, try to evaluate an imaginary call to __builtin_object_size. | |||
733 | } else { | |||
734 | // If the parameter has a pass_object_size attribute, then we should use its | |||
735 | // (potentially) more strict checking mode. Otherwise, conservatively assume | |||
736 | // type 0. | |||
737 | int BOSType = 0; | |||
738 | if (const auto *POS = | |||
739 | FD->getParamDecl(ObjectIndex)->getAttr<PassObjectSizeAttr>()) | |||
740 | BOSType = POS->getType(); | |||
741 | ||||
742 | Expr *ObjArg = TheCall->getArg(ObjectIndex); | |||
743 | uint64_t Result; | |||
744 | if (!ObjArg->tryEvaluateObjectSize(Result, getASTContext(), BOSType)) | |||
745 | return; | |||
746 | // Get the object size in the target's size_t width. | |||
747 | ObjectSize = llvm::APSInt::getUnsigned(Result).extOrTrunc(SizeTypeWidth); | |||
748 | } | |||
749 | ||||
750 | // Evaluate the number of bytes of the object that this call will use. | |||
751 | if (!UsedSize) { | |||
752 | Expr::EvalResult Result; | |||
753 | Expr *UsedSizeArg = TheCall->getArg(SizeIndex); | |||
754 | if (!UsedSizeArg->EvaluateAsInt(Result, getASTContext())) | |||
755 | return; | |||
756 | UsedSize = Result.Val.getInt().extOrTrunc(SizeTypeWidth); | |||
757 | } | |||
758 | ||||
759 | if (UsedSize.getValue().ule(ObjectSize)) | |||
760 | return; | |||
761 | ||||
762 | StringRef FunctionName = getASTContext().BuiltinInfo.getName(BuiltinID); | |||
763 | // Skim off the details of whichever builtin was called to produce a better | |||
764 | // diagnostic, as it's unlikley that the user wrote the __builtin explicitly. | |||
765 | if (IsChkVariant) { | |||
766 | FunctionName = FunctionName.drop_front(std::strlen("__builtin___")); | |||
767 | FunctionName = FunctionName.drop_back(std::strlen("_chk")); | |||
768 | } else if (FunctionName.startswith("__builtin_")) { | |||
769 | FunctionName = FunctionName.drop_front(std::strlen("__builtin_")); | |||
770 | } | |||
771 | ||||
772 | DiagRuntimeBehavior(TheCall->getBeginLoc(), TheCall, | |||
773 | PDiag(DiagID) | |||
774 | << FunctionName << ObjectSize.toString(/*Radix=*/10) | |||
775 | << UsedSize.getValue().toString(/*Radix=*/10)); | |||
776 | } | |||
777 | ||||
778 | static bool SemaBuiltinSEHScopeCheck(Sema &SemaRef, CallExpr *TheCall, | |||
779 | Scope::ScopeFlags NeededScopeFlags, | |||
780 | unsigned DiagID) { | |||
781 | // Scopes aren't available during instantiation. Fortunately, builtin | |||
782 | // functions cannot be template args so they cannot be formed through template | |||
783 | // instantiation. Therefore checking once during the parse is sufficient. | |||
784 | if (SemaRef.inTemplateInstantiation()) | |||
785 | return false; | |||
786 | ||||
787 | Scope *S = SemaRef.getCurScope(); | |||
788 | while (S && !S->isSEHExceptScope()) | |||
789 | S = S->getParent(); | |||
790 | if (!S || !(S->getFlags() & NeededScopeFlags)) { | |||
791 | auto *DRE = cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts()); | |||
792 | SemaRef.Diag(TheCall->getExprLoc(), DiagID) | |||
793 | << DRE->getDecl()->getIdentifier(); | |||
794 | return true; | |||
795 | } | |||
796 | ||||
797 | return false; | |||
798 | } | |||
799 | ||||
800 | static inline bool isBlockPointer(Expr *Arg) { | |||
801 | return Arg->getType()->isBlockPointerType(); | |||
802 | } | |||
803 | ||||
804 | /// OpenCL C v2.0, s6.13.17.2 - Checks that the block parameters are all local | |||
805 | /// void*, which is a requirement of device side enqueue. | |||
806 | static bool checkOpenCLBlockArgs(Sema &S, Expr *BlockArg) { | |||
807 | const BlockPointerType *BPT = | |||
808 | cast<BlockPointerType>(BlockArg->getType().getCanonicalType()); | |||
809 | ArrayRef<QualType> Params = | |||
810 | BPT->getPointeeType()->castAs<FunctionProtoType>()->getParamTypes(); | |||
811 | unsigned ArgCounter = 0; | |||
812 | bool IllegalParams = false; | |||
813 | // Iterate through the block parameters until either one is found that is not | |||
814 | // a local void*, or the block is valid. | |||
815 | for (ArrayRef<QualType>::iterator I = Params.begin(), E = Params.end(); | |||
816 | I != E; ++I, ++ArgCounter) { | |||
817 | if (!(*I)->isPointerType() || !(*I)->getPointeeType()->isVoidType() || | |||
818 | (*I)->getPointeeType().getQualifiers().getAddressSpace() != | |||
819 | LangAS::opencl_local) { | |||
820 | // Get the location of the error. If a block literal has been passed | |||
821 | // (BlockExpr) then we can point straight to the offending argument, | |||
822 | // else we just point to the variable reference. | |||
823 | SourceLocation ErrorLoc; | |||
824 | if (isa<BlockExpr>(BlockArg)) { | |||
825 | BlockDecl *BD = cast<BlockExpr>(BlockArg)->getBlockDecl(); | |||
826 | ErrorLoc = BD->getParamDecl(ArgCounter)->getBeginLoc(); | |||
827 | } else if (isa<DeclRefExpr>(BlockArg)) { | |||
828 | ErrorLoc = cast<DeclRefExpr>(BlockArg)->getBeginLoc(); | |||
829 | } | |||
830 | S.Diag(ErrorLoc, | |||
831 | diag::err_opencl_enqueue_kernel_blocks_non_local_void_args); | |||
832 | IllegalParams = true; | |||
833 | } | |||
834 | } | |||
835 | ||||
836 | return IllegalParams; | |||
837 | } | |||
838 | ||||
839 | static bool checkOpenCLSubgroupExt(Sema &S, CallExpr *Call) { | |||
840 | if (!S.getOpenCLOptions().isEnabled("cl_khr_subgroups")) { | |||
841 | S.Diag(Call->getBeginLoc(), diag::err_opencl_requires_extension) | |||
842 | << 1 << Call->getDirectCallee() << "cl_khr_subgroups"; | |||
843 | return true; | |||
844 | } | |||
845 | return false; | |||
846 | } | |||
847 | ||||
848 | static bool SemaOpenCLBuiltinNDRangeAndBlock(Sema &S, CallExpr *TheCall) { | |||
849 | if (checkArgCount(S, TheCall, 2)) | |||
850 | return true; | |||
851 | ||||
852 | if (checkOpenCLSubgroupExt(S, TheCall)) | |||
853 | return true; | |||
854 | ||||
855 | // First argument is an ndrange_t type. | |||
856 | Expr *NDRangeArg = TheCall->getArg(0); | |||
857 | if (NDRangeArg->getType().getUnqualifiedType().getAsString() != "ndrange_t") { | |||
858 | S.Diag(NDRangeArg->getBeginLoc(), diag::err_opencl_builtin_expected_type) | |||
859 | << TheCall->getDirectCallee() << "'ndrange_t'"; | |||
860 | return true; | |||
861 | } | |||
862 | ||||
863 | Expr *BlockArg = TheCall->getArg(1); | |||
864 | if (!isBlockPointer(BlockArg)) { | |||
865 | S.Diag(BlockArg->getBeginLoc(), diag::err_opencl_builtin_expected_type) | |||
866 | << TheCall->getDirectCallee() << "block"; | |||
867 | return true; | |||
868 | } | |||
869 | return checkOpenCLBlockArgs(S, BlockArg); | |||
870 | } | |||
871 | ||||
872 | /// OpenCL C v2.0, s6.13.17.6 - Check the argument to the | |||
873 | /// get_kernel_work_group_size | |||
874 | /// and get_kernel_preferred_work_group_size_multiple builtin functions. | |||
875 | static bool SemaOpenCLBuiltinKernelWorkGroupSize(Sema &S, CallExpr *TheCall) { | |||
876 | if (checkArgCount(S, TheCall, 1)) | |||
877 | return true; | |||
878 | ||||
879 | Expr *BlockArg = TheCall->getArg(0); | |||
880 | if (!isBlockPointer(BlockArg)) { | |||
881 | S.Diag(BlockArg->getBeginLoc(), diag::err_opencl_builtin_expected_type) | |||
882 | << TheCall->getDirectCallee() << "block"; | |||
883 | return true; | |||
884 | } | |||
885 | return checkOpenCLBlockArgs(S, BlockArg); | |||
886 | } | |||
887 | ||||
888 | /// Diagnose integer type and any valid implicit conversion to it. | |||
889 | static bool checkOpenCLEnqueueIntType(Sema &S, Expr *E, | |||
890 | const QualType &IntType); | |||
891 | ||||
892 | static bool checkOpenCLEnqueueLocalSizeArgs(Sema &S, CallExpr *TheCall, | |||
893 | unsigned Start, unsigned End) { | |||
894 | bool IllegalParams = false; | |||
895 | for (unsigned I = Start; I <= End; ++I) | |||
896 | IllegalParams |= checkOpenCLEnqueueIntType(S, TheCall->getArg(I), | |||
897 | S.Context.getSizeType()); | |||
898 | return IllegalParams; | |||
899 | } | |||
900 | ||||
901 | /// OpenCL v2.0, s6.13.17.1 - Check that sizes are provided for all | |||
902 | /// 'local void*' parameter of passed block. | |||
903 | static bool checkOpenCLEnqueueVariadicArgs(Sema &S, CallExpr *TheCall, | |||
904 | Expr *BlockArg, | |||
905 | unsigned NumNonVarArgs) { | |||
906 | const BlockPointerType *BPT = | |||
907 | cast<BlockPointerType>(BlockArg->getType().getCanonicalType()); | |||
908 | unsigned NumBlockParams = | |||
909 | BPT->getPointeeType()->castAs<FunctionProtoType>()->getNumParams(); | |||
910 | unsigned TotalNumArgs = TheCall->getNumArgs(); | |||
911 | ||||
912 | // For each argument passed to the block, a corresponding uint needs to | |||
913 | // be passed to describe the size of the local memory. | |||
914 | if (TotalNumArgs != NumBlockParams + NumNonVarArgs) { | |||
915 | S.Diag(TheCall->getBeginLoc(), | |||
916 | diag::err_opencl_enqueue_kernel_local_size_args); | |||
917 | return true; | |||
918 | } | |||
919 | ||||
920 | // Check that the sizes of the local memory are specified by integers. | |||
921 | return checkOpenCLEnqueueLocalSizeArgs(S, TheCall, NumNonVarArgs, | |||
922 | TotalNumArgs - 1); | |||
923 | } | |||
924 | ||||
925 | /// OpenCL C v2.0, s6.13.17 - Enqueue kernel function contains four different | |||
926 | /// overload formats specified in Table 6.13.17.1. | |||
927 | /// int enqueue_kernel(queue_t queue, | |||
928 | /// kernel_enqueue_flags_t flags, | |||
929 | /// const ndrange_t ndrange, | |||
930 | /// void (^block)(void)) | |||
931 | /// int enqueue_kernel(queue_t queue, | |||
932 | /// kernel_enqueue_flags_t flags, | |||
933 | /// const ndrange_t ndrange, | |||
934 | /// uint num_events_in_wait_list, | |||
935 | /// clk_event_t *event_wait_list, | |||
936 | /// clk_event_t *event_ret, | |||
937 | /// void (^block)(void)) | |||
938 | /// int enqueue_kernel(queue_t queue, | |||
939 | /// kernel_enqueue_flags_t flags, | |||
940 | /// const ndrange_t ndrange, | |||
941 | /// void (^block)(local void*, ...), | |||
942 | /// uint size0, ...) | |||
943 | /// int enqueue_kernel(queue_t queue, | |||
944 | /// kernel_enqueue_flags_t flags, | |||
945 | /// const ndrange_t ndrange, | |||
946 | /// uint num_events_in_wait_list, | |||
947 | /// clk_event_t *event_wait_list, | |||
948 | /// clk_event_t *event_ret, | |||
949 | /// void (^block)(local void*, ...), | |||
950 | /// uint size0, ...) | |||
951 | static bool SemaOpenCLBuiltinEnqueueKernel(Sema &S, CallExpr *TheCall) { | |||
952 | unsigned NumArgs = TheCall->getNumArgs(); | |||
953 | ||||
954 | if (NumArgs < 4) { | |||
955 | S.Diag(TheCall->getBeginLoc(), | |||
956 | diag::err_typecheck_call_too_few_args_at_least) | |||
957 | << 0 << 4 << NumArgs; | |||
958 | return true; | |||
959 | } | |||
960 | ||||
961 | Expr *Arg0 = TheCall->getArg(0); | |||
962 | Expr *Arg1 = TheCall->getArg(1); | |||
963 | Expr *Arg2 = TheCall->getArg(2); | |||
964 | Expr *Arg3 = TheCall->getArg(3); | |||
965 | ||||
966 | // First argument always needs to be a queue_t type. | |||
967 | if (!Arg0->getType()->isQueueT()) { | |||
968 | S.Diag(TheCall->getArg(0)->getBeginLoc(), | |||
969 | diag::err_opencl_builtin_expected_type) | |||
970 | << TheCall->getDirectCallee() << S.Context.OCLQueueTy; | |||
971 | return true; | |||
972 | } | |||
973 | ||||
974 | // Second argument always needs to be a kernel_enqueue_flags_t enum value. | |||
975 | if (!Arg1->getType()->isIntegerType()) { | |||
976 | S.Diag(TheCall->getArg(1)->getBeginLoc(), | |||
977 | diag::err_opencl_builtin_expected_type) | |||
978 | << TheCall->getDirectCallee() << "'kernel_enqueue_flags_t' (i.e. uint)"; | |||
979 | return true; | |||
980 | } | |||
981 | ||||
982 | // Third argument is always an ndrange_t type. | |||
983 | if (Arg2->getType().getUnqualifiedType().getAsString() != "ndrange_t") { | |||
984 | S.Diag(TheCall->getArg(2)->getBeginLoc(), | |||
985 | diag::err_opencl_builtin_expected_type) | |||
986 | << TheCall->getDirectCallee() << "'ndrange_t'"; | |||
987 | return true; | |||
988 | } | |||
989 | ||||
990 | // With four arguments, there is only one form that the function could be | |||
991 | // called in: no events and no variable arguments. | |||
992 | if (NumArgs == 4) { | |||
993 | // check that the last argument is the right block type. | |||
994 | if (!isBlockPointer(Arg3)) { | |||
995 | S.Diag(Arg3->getBeginLoc(), diag::err_opencl_builtin_expected_type) | |||
996 | << TheCall->getDirectCallee() << "block"; | |||
997 | return true; | |||
998 | } | |||
999 | // we have a block type, check the prototype | |||
1000 | const BlockPointerType *BPT = | |||
1001 | cast<BlockPointerType>(Arg3->getType().getCanonicalType()); | |||
1002 | if (BPT->getPointeeType()->castAs<FunctionProtoType>()->getNumParams() > 0) { | |||
1003 | S.Diag(Arg3->getBeginLoc(), | |||
1004 | diag::err_opencl_enqueue_kernel_blocks_no_args); | |||
1005 | return true; | |||
1006 | } | |||
1007 | return false; | |||
1008 | } | |||
1009 | // we can have block + varargs. | |||
1010 | if (isBlockPointer(Arg3)) | |||
1011 | return (checkOpenCLBlockArgs(S, Arg3) || | |||
1012 | checkOpenCLEnqueueVariadicArgs(S, TheCall, Arg3, 4)); | |||
1013 | // last two cases with either exactly 7 args or 7 args and varargs. | |||
1014 | if (NumArgs >= 7) { | |||
1015 | // check common block argument. | |||
1016 | Expr *Arg6 = TheCall->getArg(6); | |||
1017 | if (!isBlockPointer(Arg6)) { | |||
1018 | S.Diag(Arg6->getBeginLoc(), diag::err_opencl_builtin_expected_type) | |||
1019 | << TheCall->getDirectCallee() << "block"; | |||
1020 | return true; | |||
1021 | } | |||
1022 | if (checkOpenCLBlockArgs(S, Arg6)) | |||
1023 | return true; | |||
1024 | ||||
1025 | // Forth argument has to be any integer type. | |||
1026 | if (!Arg3->getType()->isIntegerType()) { | |||
1027 | S.Diag(TheCall->getArg(3)->getBeginLoc(), | |||
1028 | diag::err_opencl_builtin_expected_type) | |||
1029 | << TheCall->getDirectCallee() << "integer"; | |||
1030 | return true; | |||
1031 | } | |||
1032 | // check remaining common arguments. | |||
1033 | Expr *Arg4 = TheCall->getArg(4); | |||
1034 | Expr *Arg5 = TheCall->getArg(5); | |||
1035 | ||||
1036 | // Fifth argument is always passed as a pointer to clk_event_t. | |||
1037 | if (!Arg4->isNullPointerConstant(S.Context, | |||
1038 | Expr::NPC_ValueDependentIsNotNull) && | |||
1039 | !Arg4->getType()->getPointeeOrArrayElementType()->isClkEventT()) { | |||
1040 | S.Diag(TheCall->getArg(4)->getBeginLoc(), | |||
1041 | diag::err_opencl_builtin_expected_type) | |||
1042 | << TheCall->getDirectCallee() | |||
1043 | << S.Context.getPointerType(S.Context.OCLClkEventTy); | |||
1044 | return true; | |||
1045 | } | |||
1046 | ||||
1047 | // Sixth argument is always passed as a pointer to clk_event_t. | |||
1048 | if (!Arg5->isNullPointerConstant(S.Context, | |||
1049 | Expr::NPC_ValueDependentIsNotNull) && | |||
1050 | !(Arg5->getType()->isPointerType() && | |||
1051 | Arg5->getType()->getPointeeType()->isClkEventT())) { | |||
1052 | S.Diag(TheCall->getArg(5)->getBeginLoc(), | |||
1053 | diag::err_opencl_builtin_expected_type) | |||
1054 | << TheCall->getDirectCallee() | |||
1055 | << S.Context.getPointerType(S.Context.OCLClkEventTy); | |||
1056 | return true; | |||
1057 | } | |||
1058 | ||||
1059 | if (NumArgs == 7) | |||
1060 | return false; | |||
1061 | ||||
1062 | return checkOpenCLEnqueueVariadicArgs(S, TheCall, Arg6, 7); | |||
1063 | } | |||
1064 | ||||
1065 | // None of the specific case has been detected, give generic error | |||
1066 | S.Diag(TheCall->getBeginLoc(), | |||
1067 | diag::err_opencl_enqueue_kernel_incorrect_args); | |||
1068 | return true; | |||
1069 | } | |||
1070 | ||||
1071 | /// Returns OpenCL access qual. | |||
1072 | static OpenCLAccessAttr *getOpenCLArgAccess(const Decl *D) { | |||
1073 | return D->getAttr<OpenCLAccessAttr>(); | |||
1074 | } | |||
1075 | ||||
1076 | /// Returns true if pipe element type is different from the pointer. | |||
1077 | static bool checkOpenCLPipeArg(Sema &S, CallExpr *Call) { | |||
1078 | const Expr *Arg0 = Call->getArg(0); | |||
1079 | // First argument type should always be pipe. | |||
1080 | if (!Arg0->getType()->isPipeType()) { | |||
1081 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_first_arg) | |||
1082 | << Call->getDirectCallee() << Arg0->getSourceRange(); | |||
1083 | return true; | |||
1084 | } | |||
1085 | OpenCLAccessAttr *AccessQual = | |||
1086 | getOpenCLArgAccess(cast<DeclRefExpr>(Arg0)->getDecl()); | |||
1087 | // Validates the access qualifier is compatible with the call. | |||
1088 | // OpenCL v2.0 s6.13.16 - The access qualifiers for pipe should only be | |||
1089 | // read_only and write_only, and assumed to be read_only if no qualifier is | |||
1090 | // specified. | |||
1091 | switch (Call->getDirectCallee()->getBuiltinID()) { | |||
1092 | case Builtin::BIread_pipe: | |||
1093 | case Builtin::BIreserve_read_pipe: | |||
1094 | case Builtin::BIcommit_read_pipe: | |||
1095 | case Builtin::BIwork_group_reserve_read_pipe: | |||
1096 | case Builtin::BIsub_group_reserve_read_pipe: | |||
1097 | case Builtin::BIwork_group_commit_read_pipe: | |||
1098 | case Builtin::BIsub_group_commit_read_pipe: | |||
1099 | if (!(!AccessQual || AccessQual->isReadOnly())) { | |||
1100 | S.Diag(Arg0->getBeginLoc(), | |||
1101 | diag::err_opencl_builtin_pipe_invalid_access_modifier) | |||
1102 | << "read_only" << Arg0->getSourceRange(); | |||
1103 | return true; | |||
1104 | } | |||
1105 | break; | |||
1106 | case Builtin::BIwrite_pipe: | |||
1107 | case Builtin::BIreserve_write_pipe: | |||
1108 | case Builtin::BIcommit_write_pipe: | |||
1109 | case Builtin::BIwork_group_reserve_write_pipe: | |||
1110 | case Builtin::BIsub_group_reserve_write_pipe: | |||
1111 | case Builtin::BIwork_group_commit_write_pipe: | |||
1112 | case Builtin::BIsub_group_commit_write_pipe: | |||
1113 | if (!(AccessQual && AccessQual->isWriteOnly())) { | |||
1114 | S.Diag(Arg0->getBeginLoc(), | |||
1115 | diag::err_opencl_builtin_pipe_invalid_access_modifier) | |||
1116 | << "write_only" << Arg0->getSourceRange(); | |||
1117 | return true; | |||
1118 | } | |||
1119 | break; | |||
1120 | default: | |||
1121 | break; | |||
1122 | } | |||
1123 | return false; | |||
1124 | } | |||
1125 | ||||
1126 | /// Returns true if pipe element type is different from the pointer. | |||
1127 | static bool checkOpenCLPipePacketType(Sema &S, CallExpr *Call, unsigned Idx) { | |||
1128 | const Expr *Arg0 = Call->getArg(0); | |||
1129 | const Expr *ArgIdx = Call->getArg(Idx); | |||
1130 | const PipeType *PipeTy = cast<PipeType>(Arg0->getType()); | |||
1131 | const QualType EltTy = PipeTy->getElementType(); | |||
1132 | const PointerType *ArgTy = ArgIdx->getType()->getAs<PointerType>(); | |||
1133 | // The Idx argument should be a pointer and the type of the pointer and | |||
1134 | // the type of pipe element should also be the same. | |||
1135 | if (!ArgTy || | |||
1136 | !S.Context.hasSameType( | |||
1137 | EltTy, ArgTy->getPointeeType()->getCanonicalTypeInternal())) { | |||
1138 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg) | |||
1139 | << Call->getDirectCallee() << S.Context.getPointerType(EltTy) | |||
1140 | << ArgIdx->getType() << ArgIdx->getSourceRange(); | |||
1141 | return true; | |||
1142 | } | |||
1143 | return false; | |||
1144 | } | |||
1145 | ||||
1146 | // Performs semantic analysis for the read/write_pipe call. | |||
1147 | // \param S Reference to the semantic analyzer. | |||
1148 | // \param Call A pointer to the builtin call. | |||
1149 | // \return True if a semantic error has been found, false otherwise. | |||
1150 | static bool SemaBuiltinRWPipe(Sema &S, CallExpr *Call) { | |||
1151 | // OpenCL v2.0 s6.13.16.2 - The built-in read/write | |||
1152 | // functions have two forms. | |||
1153 | switch (Call->getNumArgs()) { | |||
1154 | case 2: | |||
1155 | if (checkOpenCLPipeArg(S, Call)) | |||
1156 | return true; | |||
1157 | // The call with 2 arguments should be | |||
1158 | // read/write_pipe(pipe T, T*). | |||
1159 | // Check packet type T. | |||
1160 | if (checkOpenCLPipePacketType(S, Call, 1)) | |||
1161 | return true; | |||
1162 | break; | |||
1163 | ||||
1164 | case 4: { | |||
1165 | if (checkOpenCLPipeArg(S, Call)) | |||
1166 | return true; | |||
1167 | // The call with 4 arguments should be | |||
1168 | // read/write_pipe(pipe T, reserve_id_t, uint, T*). | |||
1169 | // Check reserve_id_t. | |||
1170 | if (!Call->getArg(1)->getType()->isReserveIDT()) { | |||
1171 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg) | |||
1172 | << Call->getDirectCallee() << S.Context.OCLReserveIDTy | |||
1173 | << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange(); | |||
1174 | return true; | |||
1175 | } | |||
1176 | ||||
1177 | // Check the index. | |||
1178 | const Expr *Arg2 = Call->getArg(2); | |||
1179 | if (!Arg2->getType()->isIntegerType() && | |||
1180 | !Arg2->getType()->isUnsignedIntegerType()) { | |||
1181 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg) | |||
1182 | << Call->getDirectCallee() << S.Context.UnsignedIntTy | |||
1183 | << Arg2->getType() << Arg2->getSourceRange(); | |||
1184 | return true; | |||
1185 | } | |||
1186 | ||||
1187 | // Check packet type T. | |||
1188 | if (checkOpenCLPipePacketType(S, Call, 3)) | |||
1189 | return true; | |||
1190 | } break; | |||
1191 | default: | |||
1192 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_arg_num) | |||
1193 | << Call->getDirectCallee() << Call->getSourceRange(); | |||
1194 | return true; | |||
1195 | } | |||
1196 | ||||
1197 | return false; | |||
1198 | } | |||
1199 | ||||
1200 | // Performs a semantic analysis on the {work_group_/sub_group_ | |||
1201 | // /_}reserve_{read/write}_pipe | |||
1202 | // \param S Reference to the semantic analyzer. | |||
1203 | // \param Call The call to the builtin function to be analyzed. | |||
1204 | // \return True if a semantic error was found, false otherwise. | |||
1205 | static bool SemaBuiltinReserveRWPipe(Sema &S, CallExpr *Call) { | |||
1206 | if (checkArgCount(S, Call, 2)) | |||
1207 | return true; | |||
1208 | ||||
1209 | if (checkOpenCLPipeArg(S, Call)) | |||
1210 | return true; | |||
1211 | ||||
1212 | // Check the reserve size. | |||
1213 | if (!Call->getArg(1)->getType()->isIntegerType() && | |||
1214 | !Call->getArg(1)->getType()->isUnsignedIntegerType()) { | |||
1215 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg) | |||
1216 | << Call->getDirectCallee() << S.Context.UnsignedIntTy | |||
1217 | << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange(); | |||
1218 | return true; | |||
1219 | } | |||
1220 | ||||
1221 | // Since return type of reserve_read/write_pipe built-in function is | |||
1222 | // reserve_id_t, which is not defined in the builtin def file , we used int | |||
1223 | // as return type and need to override the return type of these functions. | |||
1224 | Call->setType(S.Context.OCLReserveIDTy); | |||
1225 | ||||
1226 | return false; | |||
1227 | } | |||
1228 | ||||
1229 | // Performs a semantic analysis on {work_group_/sub_group_ | |||
1230 | // /_}commit_{read/write}_pipe | |||
1231 | // \param S Reference to the semantic analyzer. | |||
1232 | // \param Call The call to the builtin function to be analyzed. | |||
1233 | // \return True if a semantic error was found, false otherwise. | |||
1234 | static bool SemaBuiltinCommitRWPipe(Sema &S, CallExpr *Call) { | |||
1235 | if (checkArgCount(S, Call, 2)) | |||
1236 | return true; | |||
1237 | ||||
1238 | if (checkOpenCLPipeArg(S, Call)) | |||
1239 | return true; | |||
1240 | ||||
1241 | // Check reserve_id_t. | |||
1242 | if (!Call->getArg(1)->getType()->isReserveIDT()) { | |||
1243 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg) | |||
1244 | << Call->getDirectCallee() << S.Context.OCLReserveIDTy | |||
1245 | << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange(); | |||
1246 | return true; | |||
1247 | } | |||
1248 | ||||
1249 | return false; | |||
1250 | } | |||
1251 | ||||
1252 | // Performs a semantic analysis on the call to built-in Pipe | |||
1253 | // Query Functions. | |||
1254 | // \param S Reference to the semantic analyzer. | |||
1255 | // \param Call The call to the builtin function to be analyzed. | |||
1256 | // \return True if a semantic error was found, false otherwise. | |||
1257 | static bool SemaBuiltinPipePackets(Sema &S, CallExpr *Call) { | |||
1258 | if (checkArgCount(S, Call, 1)) | |||
1259 | return true; | |||
1260 | ||||
1261 | if (!Call->getArg(0)->getType()->isPipeType()) { | |||
1262 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_first_arg) | |||
1263 | << Call->getDirectCallee() << Call->getArg(0)->getSourceRange(); | |||
1264 | return true; | |||
1265 | } | |||
1266 | ||||
1267 | return false; | |||
1268 | } | |||
1269 | ||||
1270 | // OpenCL v2.0 s6.13.9 - Address space qualifier functions. | |||
1271 | // Performs semantic analysis for the to_global/local/private call. | |||
1272 | // \param S Reference to the semantic analyzer. | |||
1273 | // \param BuiltinID ID of the builtin function. | |||
1274 | // \param Call A pointer to the builtin call. | |||
1275 | // \return True if a semantic error has been found, false otherwise. | |||
1276 | static bool SemaOpenCLBuiltinToAddr(Sema &S, unsigned BuiltinID, | |||
1277 | CallExpr *Call) { | |||
1278 | if (checkArgCount(S, Call, 1)) | |||
1279 | return true; | |||
1280 | ||||
1281 | auto RT = Call->getArg(0)->getType(); | |||
1282 | if (!RT->isPointerType() || RT->getPointeeType() | |||
1283 | .getAddressSpace() == LangAS::opencl_constant) { | |||
1284 | S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_to_addr_invalid_arg) | |||
1285 | << Call->getArg(0) << Call->getDirectCallee() << Call->getSourceRange(); | |||
1286 | return true; | |||
1287 | } | |||
1288 | ||||
1289 | if (RT->getPointeeType().getAddressSpace() != LangAS::opencl_generic) { | |||
1290 | S.Diag(Call->getArg(0)->getBeginLoc(), | |||
1291 | diag::warn_opencl_generic_address_space_arg) | |||
1292 | << Call->getDirectCallee()->getNameInfo().getAsString() | |||
1293 | << Call->getArg(0)->getSourceRange(); | |||
1294 | } | |||
1295 | ||||
1296 | RT = RT->getPointeeType(); | |||
1297 | auto Qual = RT.getQualifiers(); | |||
1298 | switch (BuiltinID) { | |||
1299 | case Builtin::BIto_global: | |||
1300 | Qual.setAddressSpace(LangAS::opencl_global); | |||
1301 | break; | |||
1302 | case Builtin::BIto_local: | |||
1303 | Qual.setAddressSpace(LangAS::opencl_local); | |||
1304 | break; | |||
1305 | case Builtin::BIto_private: | |||
1306 | Qual.setAddressSpace(LangAS::opencl_private); | |||
1307 | break; | |||
1308 | default: | |||
1309 | llvm_unreachable("Invalid builtin function")::llvm::llvm_unreachable_internal("Invalid builtin function", "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 1309); | |||
1310 | } | |||
1311 | Call->setType(S.Context.getPointerType(S.Context.getQualifiedType( | |||
1312 | RT.getUnqualifiedType(), Qual))); | |||
1313 | ||||
1314 | return false; | |||
1315 | } | |||
1316 | ||||
1317 | static ExprResult SemaBuiltinLaunder(Sema &S, CallExpr *TheCall) { | |||
1318 | if (checkArgCount(S, TheCall, 1)) | |||
1319 | return ExprError(); | |||
1320 | ||||
1321 | // Compute __builtin_launder's parameter type from the argument. | |||
1322 | // The parameter type is: | |||
1323 | // * The type of the argument if it's not an array or function type, | |||
1324 | // Otherwise, | |||
1325 | // * The decayed argument type. | |||
1326 | QualType ParamTy = [&]() { | |||
1327 | QualType ArgTy = TheCall->getArg(0)->getType(); | |||
1328 | if (const ArrayType *Ty = ArgTy->getAsArrayTypeUnsafe()) | |||
1329 | return S.Context.getPointerType(Ty->getElementType()); | |||
1330 | if (ArgTy->isFunctionType()) { | |||
1331 | return S.Context.getPointerType(ArgTy); | |||
1332 | } | |||
1333 | return ArgTy; | |||
1334 | }(); | |||
1335 | ||||
1336 | TheCall->setType(ParamTy); | |||
1337 | ||||
1338 | auto DiagSelect = [&]() -> llvm::Optional<unsigned> { | |||
1339 | if (!ParamTy->isPointerType()) | |||
1340 | return 0; | |||
1341 | if (ParamTy->isFunctionPointerType()) | |||
1342 | return 1; | |||
1343 | if (ParamTy->isVoidPointerType()) | |||
1344 | return 2; | |||
1345 | return llvm::Optional<unsigned>{}; | |||
1346 | }(); | |||
1347 | if (DiagSelect.hasValue()) { | |||
1348 | S.Diag(TheCall->getBeginLoc(), diag::err_builtin_launder_invalid_arg) | |||
1349 | << DiagSelect.getValue() << TheCall->getSourceRange(); | |||
1350 | return ExprError(); | |||
1351 | } | |||
1352 | ||||
1353 | // We either have an incomplete class type, or we have a class template | |||
1354 | // whose instantiation has not been forced. Example: | |||
1355 | // | |||
1356 | // template <class T> struct Foo { T value; }; | |||
1357 | // Foo<int> *p = nullptr; | |||
1358 | // auto *d = __builtin_launder(p); | |||
1359 | if (S.RequireCompleteType(TheCall->getBeginLoc(), ParamTy->getPointeeType(), | |||
1360 | diag::err_incomplete_type)) | |||
1361 | return ExprError(); | |||
1362 | ||||
1363 | assert(ParamTy->getPointeeType()->isObjectType() &&((ParamTy->getPointeeType()->isObjectType() && "Unhandled non-object pointer case" ) ? static_cast<void> (0) : __assert_fail ("ParamTy->getPointeeType()->isObjectType() && \"Unhandled non-object pointer case\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 1364, __PRETTY_FUNCTION__)) | |||
1364 | "Unhandled non-object pointer case")((ParamTy->getPointeeType()->isObjectType() && "Unhandled non-object pointer case" ) ? static_cast<void> (0) : __assert_fail ("ParamTy->getPointeeType()->isObjectType() && \"Unhandled non-object pointer case\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 1364, __PRETTY_FUNCTION__)); | |||
1365 | ||||
1366 | InitializedEntity Entity = | |||
1367 | InitializedEntity::InitializeParameter(S.Context, ParamTy, false); | |||
1368 | ExprResult Arg = | |||
1369 | S.PerformCopyInitialization(Entity, SourceLocation(), TheCall->getArg(0)); | |||
1370 | if (Arg.isInvalid()) | |||
1371 | return ExprError(); | |||
1372 | TheCall->setArg(0, Arg.get()); | |||
1373 | ||||
1374 | return TheCall; | |||
1375 | } | |||
1376 | ||||
1377 | // Emit an error and return true if the current architecture is not in the list | |||
1378 | // of supported architectures. | |||
1379 | static bool | |||
1380 | CheckBuiltinTargetSupport(Sema &S, unsigned BuiltinID, CallExpr *TheCall, | |||
1381 | ArrayRef<llvm::Triple::ArchType> SupportedArchs) { | |||
1382 | llvm::Triple::ArchType CurArch = | |||
1383 | S.getASTContext().getTargetInfo().getTriple().getArch(); | |||
1384 | if (llvm::is_contained(SupportedArchs, CurArch)) | |||
1385 | return false; | |||
1386 | S.Diag(TheCall->getBeginLoc(), diag::err_builtin_target_unsupported) | |||
1387 | << TheCall->getSourceRange(); | |||
1388 | return true; | |||
1389 | } | |||
1390 | ||||
1391 | static void CheckNonNullArgument(Sema &S, const Expr *ArgExpr, | |||
1392 | SourceLocation CallSiteLoc); | |||
1393 | ||||
1394 | bool Sema::CheckTSBuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID, | |||
1395 | CallExpr *TheCall) { | |||
1396 | switch (TI.getTriple().getArch()) { | |||
1397 | default: | |||
1398 | // Some builtins don't require additional checking, so just consider these | |||
1399 | // acceptable. | |||
1400 | return false; | |||
1401 | case llvm::Triple::arm: | |||
1402 | case llvm::Triple::armeb: | |||
1403 | case llvm::Triple::thumb: | |||
1404 | case llvm::Triple::thumbeb: | |||
1405 | return CheckARMBuiltinFunctionCall(TI, BuiltinID, TheCall); | |||
1406 | case llvm::Triple::aarch64: | |||
1407 | case llvm::Triple::aarch64_32: | |||
1408 | case llvm::Triple::aarch64_be: | |||
1409 | return CheckAArch64BuiltinFunctionCall(TI, BuiltinID, TheCall); | |||
1410 | case llvm::Triple::bpfeb: | |||
1411 | case llvm::Triple::bpfel: | |||
1412 | return CheckBPFBuiltinFunctionCall(BuiltinID, TheCall); | |||
1413 | case llvm::Triple::hexagon: | |||
1414 | return CheckHexagonBuiltinFunctionCall(BuiltinID, TheCall); | |||
1415 | case llvm::Triple::mips: | |||
1416 | case llvm::Triple::mipsel: | |||
1417 | case llvm::Triple::mips64: | |||
1418 | case llvm::Triple::mips64el: | |||
1419 | return CheckMipsBuiltinFunctionCall(TI, BuiltinID, TheCall); | |||
1420 | case llvm::Triple::systemz: | |||
1421 | return CheckSystemZBuiltinFunctionCall(BuiltinID, TheCall); | |||
1422 | case llvm::Triple::x86: | |||
1423 | case llvm::Triple::x86_64: | |||
1424 | return CheckX86BuiltinFunctionCall(TI, BuiltinID, TheCall); | |||
1425 | case llvm::Triple::ppc: | |||
1426 | case llvm::Triple::ppcle: | |||
1427 | case llvm::Triple::ppc64: | |||
1428 | case llvm::Triple::ppc64le: | |||
1429 | return CheckPPCBuiltinFunctionCall(TI, BuiltinID, TheCall); | |||
1430 | case llvm::Triple::amdgcn: | |||
1431 | return CheckAMDGCNBuiltinFunctionCall(BuiltinID, TheCall); | |||
1432 | } | |||
1433 | } | |||
1434 | ||||
1435 | ExprResult | |||
1436 | Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID, | |||
1437 | CallExpr *TheCall) { | |||
1438 | ExprResult TheCallResult(TheCall); | |||
1439 | ||||
1440 | // Find out if any arguments are required to be integer constant expressions. | |||
1441 | unsigned ICEArguments = 0; | |||
1442 | ASTContext::GetBuiltinTypeError Error; | |||
1443 | Context.GetBuiltinType(BuiltinID, Error, &ICEArguments); | |||
1444 | if (Error != ASTContext::GE_None) | |||
1445 | ICEArguments = 0; // Don't diagnose previously diagnosed errors. | |||
1446 | ||||
1447 | // If any arguments are required to be ICE's, check and diagnose. | |||
1448 | for (unsigned ArgNo = 0; ICEArguments != 0; ++ArgNo) { | |||
1449 | // Skip arguments not required to be ICE's. | |||
1450 | if ((ICEArguments & (1 << ArgNo)) == 0) continue; | |||
1451 | ||||
1452 | llvm::APSInt Result; | |||
1453 | if (SemaBuiltinConstantArg(TheCall, ArgNo, Result)) | |||
1454 | return true; | |||
1455 | ICEArguments &= ~(1 << ArgNo); | |||
1456 | } | |||
1457 | ||||
1458 | switch (BuiltinID) { | |||
1459 | case Builtin::BI__builtin___CFStringMakeConstantString: | |||
1460 | assert(TheCall->getNumArgs() == 1 &&((TheCall->getNumArgs() == 1 && "Wrong # arguments to builtin CFStringMakeConstantString" ) ? static_cast<void> (0) : __assert_fail ("TheCall->getNumArgs() == 1 && \"Wrong # arguments to builtin CFStringMakeConstantString\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 1461, __PRETTY_FUNCTION__)) | |||
1461 | "Wrong # arguments to builtin CFStringMakeConstantString")((TheCall->getNumArgs() == 1 && "Wrong # arguments to builtin CFStringMakeConstantString" ) ? static_cast<void> (0) : __assert_fail ("TheCall->getNumArgs() == 1 && \"Wrong # arguments to builtin CFStringMakeConstantString\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 1461, __PRETTY_FUNCTION__)); | |||
1462 | if (CheckObjCString(TheCall->getArg(0))) | |||
1463 | return ExprError(); | |||
1464 | break; | |||
1465 | case Builtin::BI__builtin_ms_va_start: | |||
1466 | case Builtin::BI__builtin_stdarg_start: | |||
1467 | case Builtin::BI__builtin_va_start: | |||
1468 | if (SemaBuiltinVAStart(BuiltinID, TheCall)) | |||
1469 | return ExprError(); | |||
1470 | break; | |||
1471 | case Builtin::BI__va_start: { | |||
1472 | switch (Context.getTargetInfo().getTriple().getArch()) { | |||
1473 | case llvm::Triple::aarch64: | |||
1474 | case llvm::Triple::arm: | |||
1475 | case llvm::Triple::thumb: | |||
1476 | if (SemaBuiltinVAStartARMMicrosoft(TheCall)) | |||
1477 | return ExprError(); | |||
1478 | break; | |||
1479 | default: | |||
1480 | if (SemaBuiltinVAStart(BuiltinID, TheCall)) | |||
1481 | return ExprError(); | |||
1482 | break; | |||
1483 | } | |||
1484 | break; | |||
1485 | } | |||
1486 | ||||
1487 | // The acquire, release, and no fence variants are ARM and AArch64 only. | |||
1488 | case Builtin::BI_interlockedbittestandset_acq: | |||
1489 | case Builtin::BI_interlockedbittestandset_rel: | |||
1490 | case Builtin::BI_interlockedbittestandset_nf: | |||
1491 | case Builtin::BI_interlockedbittestandreset_acq: | |||
1492 | case Builtin::BI_interlockedbittestandreset_rel: | |||
1493 | case Builtin::BI_interlockedbittestandreset_nf: | |||
1494 | if (CheckBuiltinTargetSupport( | |||
1495 | *this, BuiltinID, TheCall, | |||
1496 | {llvm::Triple::arm, llvm::Triple::thumb, llvm::Triple::aarch64})) | |||
1497 | return ExprError(); | |||
1498 | break; | |||
1499 | ||||
1500 | // The 64-bit bittest variants are x64, ARM, and AArch64 only. | |||
1501 | case Builtin::BI_bittest64: | |||
1502 | case Builtin::BI_bittestandcomplement64: | |||
1503 | case Builtin::BI_bittestandreset64: | |||
1504 | case Builtin::BI_bittestandset64: | |||
1505 | case Builtin::BI_interlockedbittestandreset64: | |||
1506 | case Builtin::BI_interlockedbittestandset64: | |||
1507 | if (CheckBuiltinTargetSupport(*this, BuiltinID, TheCall, | |||
1508 | {llvm::Triple::x86_64, llvm::Triple::arm, | |||
1509 | llvm::Triple::thumb, llvm::Triple::aarch64})) | |||
1510 | return ExprError(); | |||
1511 | break; | |||
1512 | ||||
1513 | case Builtin::BI__builtin_isgreater: | |||
1514 | case Builtin::BI__builtin_isgreaterequal: | |||
1515 | case Builtin::BI__builtin_isless: | |||
1516 | case Builtin::BI__builtin_islessequal: | |||
1517 | case Builtin::BI__builtin_islessgreater: | |||
1518 | case Builtin::BI__builtin_isunordered: | |||
1519 | if (SemaBuiltinUnorderedCompare(TheCall)) | |||
1520 | return ExprError(); | |||
1521 | break; | |||
1522 | case Builtin::BI__builtin_fpclassify: | |||
1523 | if (SemaBuiltinFPClassification(TheCall, 6)) | |||
1524 | return ExprError(); | |||
1525 | break; | |||
1526 | case Builtin::BI__builtin_isfinite: | |||
1527 | case Builtin::BI__builtin_isinf: | |||
1528 | case Builtin::BI__builtin_isinf_sign: | |||
1529 | case Builtin::BI__builtin_isnan: | |||
1530 | case Builtin::BI__builtin_isnormal: | |||
1531 | case Builtin::BI__builtin_signbit: | |||
1532 | case Builtin::BI__builtin_signbitf: | |||
1533 | case Builtin::BI__builtin_signbitl: | |||
1534 | if (SemaBuiltinFPClassification(TheCall, 1)) | |||
1535 | return ExprError(); | |||
1536 | break; | |||
1537 | case Builtin::BI__builtin_shufflevector: | |||
1538 | return SemaBuiltinShuffleVector(TheCall); | |||
1539 | // TheCall will be freed by the smart pointer here, but that's fine, since | |||
1540 | // SemaBuiltinShuffleVector guts it, but then doesn't release it. | |||
1541 | case Builtin::BI__builtin_prefetch: | |||
1542 | if (SemaBuiltinPrefetch(TheCall)) | |||
1543 | return ExprError(); | |||
1544 | break; | |||
1545 | case Builtin::BI__builtin_alloca_with_align: | |||
1546 | if (SemaBuiltinAllocaWithAlign(TheCall)) | |||
1547 | return ExprError(); | |||
1548 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
1549 | case Builtin::BI__builtin_alloca: | |||
1550 | Diag(TheCall->getBeginLoc(), diag::warn_alloca) | |||
1551 | << TheCall->getDirectCallee(); | |||
1552 | break; | |||
1553 | case Builtin::BI__assume: | |||
1554 | case Builtin::BI__builtin_assume: | |||
1555 | if (SemaBuiltinAssume(TheCall)) | |||
1556 | return ExprError(); | |||
1557 | break; | |||
1558 | case Builtin::BI__builtin_assume_aligned: | |||
1559 | if (SemaBuiltinAssumeAligned(TheCall)) | |||
1560 | return ExprError(); | |||
1561 | break; | |||
1562 | case Builtin::BI__builtin_dynamic_object_size: | |||
1563 | case Builtin::BI__builtin_object_size: | |||
1564 | if (SemaBuiltinConstantArgRange(TheCall, 1, 0, 3)) | |||
1565 | return ExprError(); | |||
1566 | break; | |||
1567 | case Builtin::BI__builtin_longjmp: | |||
1568 | if (SemaBuiltinLongjmp(TheCall)) | |||
1569 | return ExprError(); | |||
1570 | break; | |||
1571 | case Builtin::BI__builtin_setjmp: | |||
1572 | if (SemaBuiltinSetjmp(TheCall)) | |||
1573 | return ExprError(); | |||
1574 | break; | |||
1575 | case Builtin::BI__builtin_classify_type: | |||
1576 | if (checkArgCount(*this, TheCall, 1)) return true; | |||
1577 | TheCall->setType(Context.IntTy); | |||
1578 | break; | |||
1579 | case Builtin::BI__builtin_complex: | |||
1580 | if (SemaBuiltinComplex(TheCall)) | |||
1581 | return ExprError(); | |||
1582 | break; | |||
1583 | case Builtin::BI__builtin_constant_p: { | |||
1584 | if (checkArgCount(*this, TheCall, 1)) return true; | |||
1585 | ExprResult Arg = DefaultFunctionArrayLvalueConversion(TheCall->getArg(0)); | |||
1586 | if (Arg.isInvalid()) return true; | |||
1587 | TheCall->setArg(0, Arg.get()); | |||
1588 | TheCall->setType(Context.IntTy); | |||
1589 | break; | |||
1590 | } | |||
1591 | case Builtin::BI__builtin_launder: | |||
1592 | return SemaBuiltinLaunder(*this, TheCall); | |||
1593 | case Builtin::BI__sync_fetch_and_add: | |||
1594 | case Builtin::BI__sync_fetch_and_add_1: | |||
1595 | case Builtin::BI__sync_fetch_and_add_2: | |||
1596 | case Builtin::BI__sync_fetch_and_add_4: | |||
1597 | case Builtin::BI__sync_fetch_and_add_8: | |||
1598 | case Builtin::BI__sync_fetch_and_add_16: | |||
1599 | case Builtin::BI__sync_fetch_and_sub: | |||
1600 | case Builtin::BI__sync_fetch_and_sub_1: | |||
1601 | case Builtin::BI__sync_fetch_and_sub_2: | |||
1602 | case Builtin::BI__sync_fetch_and_sub_4: | |||
1603 | case Builtin::BI__sync_fetch_and_sub_8: | |||
1604 | case Builtin::BI__sync_fetch_and_sub_16: | |||
1605 | case Builtin::BI__sync_fetch_and_or: | |||
1606 | case Builtin::BI__sync_fetch_and_or_1: | |||
1607 | case Builtin::BI__sync_fetch_and_or_2: | |||
1608 | case Builtin::BI__sync_fetch_and_or_4: | |||
1609 | case Builtin::BI__sync_fetch_and_or_8: | |||
1610 | case Builtin::BI__sync_fetch_and_or_16: | |||
1611 | case Builtin::BI__sync_fetch_and_and: | |||
1612 | case Builtin::BI__sync_fetch_and_and_1: | |||
1613 | case Builtin::BI__sync_fetch_and_and_2: | |||
1614 | case Builtin::BI__sync_fetch_and_and_4: | |||
1615 | case Builtin::BI__sync_fetch_and_and_8: | |||
1616 | case Builtin::BI__sync_fetch_and_and_16: | |||
1617 | case Builtin::BI__sync_fetch_and_xor: | |||
1618 | case Builtin::BI__sync_fetch_and_xor_1: | |||
1619 | case Builtin::BI__sync_fetch_and_xor_2: | |||
1620 | case Builtin::BI__sync_fetch_and_xor_4: | |||
1621 | case Builtin::BI__sync_fetch_and_xor_8: | |||
1622 | case Builtin::BI__sync_fetch_and_xor_16: | |||
1623 | case Builtin::BI__sync_fetch_and_nand: | |||
1624 | case Builtin::BI__sync_fetch_and_nand_1: | |||
1625 | case Builtin::BI__sync_fetch_and_nand_2: | |||
1626 | case Builtin::BI__sync_fetch_and_nand_4: | |||
1627 | case Builtin::BI__sync_fetch_and_nand_8: | |||
1628 | case Builtin::BI__sync_fetch_and_nand_16: | |||
1629 | case Builtin::BI__sync_add_and_fetch: | |||
1630 | case Builtin::BI__sync_add_and_fetch_1: | |||
1631 | case Builtin::BI__sync_add_and_fetch_2: | |||
1632 | case Builtin::BI__sync_add_and_fetch_4: | |||
1633 | case Builtin::BI__sync_add_and_fetch_8: | |||
1634 | case Builtin::BI__sync_add_and_fetch_16: | |||
1635 | case Builtin::BI__sync_sub_and_fetch: | |||
1636 | case Builtin::BI__sync_sub_and_fetch_1: | |||
1637 | case Builtin::BI__sync_sub_and_fetch_2: | |||
1638 | case Builtin::BI__sync_sub_and_fetch_4: | |||
1639 | case Builtin::BI__sync_sub_and_fetch_8: | |||
1640 | case Builtin::BI__sync_sub_and_fetch_16: | |||
1641 | case Builtin::BI__sync_and_and_fetch: | |||
1642 | case Builtin::BI__sync_and_and_fetch_1: | |||
1643 | case Builtin::BI__sync_and_and_fetch_2: | |||
1644 | case Builtin::BI__sync_and_and_fetch_4: | |||
1645 | case Builtin::BI__sync_and_and_fetch_8: | |||
1646 | case Builtin::BI__sync_and_and_fetch_16: | |||
1647 | case Builtin::BI__sync_or_and_fetch: | |||
1648 | case Builtin::BI__sync_or_and_fetch_1: | |||
1649 | case Builtin::BI__sync_or_and_fetch_2: | |||
1650 | case Builtin::BI__sync_or_and_fetch_4: | |||
1651 | case Builtin::BI__sync_or_and_fetch_8: | |||
1652 | case Builtin::BI__sync_or_and_fetch_16: | |||
1653 | case Builtin::BI__sync_xor_and_fetch: | |||
1654 | case Builtin::BI__sync_xor_and_fetch_1: | |||
1655 | case Builtin::BI__sync_xor_and_fetch_2: | |||
1656 | case Builtin::BI__sync_xor_and_fetch_4: | |||
1657 | case Builtin::BI__sync_xor_and_fetch_8: | |||
1658 | case Builtin::BI__sync_xor_and_fetch_16: | |||
1659 | case Builtin::BI__sync_nand_and_fetch: | |||
1660 | case Builtin::BI__sync_nand_and_fetch_1: | |||
1661 | case Builtin::BI__sync_nand_and_fetch_2: | |||
1662 | case Builtin::BI__sync_nand_and_fetch_4: | |||
1663 | case Builtin::BI__sync_nand_and_fetch_8: | |||
1664 | case Builtin::BI__sync_nand_and_fetch_16: | |||
1665 | case Builtin::BI__sync_val_compare_and_swap: | |||
1666 | case Builtin::BI__sync_val_compare_and_swap_1: | |||
1667 | case Builtin::BI__sync_val_compare_and_swap_2: | |||
1668 | case Builtin::BI__sync_val_compare_and_swap_4: | |||
1669 | case Builtin::BI__sync_val_compare_and_swap_8: | |||
1670 | case Builtin::BI__sync_val_compare_and_swap_16: | |||
1671 | case Builtin::BI__sync_bool_compare_and_swap: | |||
1672 | case Builtin::BI__sync_bool_compare_and_swap_1: | |||
1673 | case Builtin::BI__sync_bool_compare_and_swap_2: | |||
1674 | case Builtin::BI__sync_bool_compare_and_swap_4: | |||
1675 | case Builtin::BI__sync_bool_compare_and_swap_8: | |||
1676 | case Builtin::BI__sync_bool_compare_and_swap_16: | |||
1677 | case Builtin::BI__sync_lock_test_and_set: | |||
1678 | case Builtin::BI__sync_lock_test_and_set_1: | |||
1679 | case Builtin::BI__sync_lock_test_and_set_2: | |||
1680 | case Builtin::BI__sync_lock_test_and_set_4: | |||
1681 | case Builtin::BI__sync_lock_test_and_set_8: | |||
1682 | case Builtin::BI__sync_lock_test_and_set_16: | |||
1683 | case Builtin::BI__sync_lock_release: | |||
1684 | case Builtin::BI__sync_lock_release_1: | |||
1685 | case Builtin::BI__sync_lock_release_2: | |||
1686 | case Builtin::BI__sync_lock_release_4: | |||
1687 | case Builtin::BI__sync_lock_release_8: | |||
1688 | case Builtin::BI__sync_lock_release_16: | |||
1689 | case Builtin::BI__sync_swap: | |||
1690 | case Builtin::BI__sync_swap_1: | |||
1691 | case Builtin::BI__sync_swap_2: | |||
1692 | case Builtin::BI__sync_swap_4: | |||
1693 | case Builtin::BI__sync_swap_8: | |||
1694 | case Builtin::BI__sync_swap_16: | |||
1695 | return SemaBuiltinAtomicOverloaded(TheCallResult); | |||
1696 | case Builtin::BI__sync_synchronize: | |||
1697 | Diag(TheCall->getBeginLoc(), diag::warn_atomic_implicit_seq_cst) | |||
1698 | << TheCall->getCallee()->getSourceRange(); | |||
1699 | break; | |||
1700 | case Builtin::BI__builtin_nontemporal_load: | |||
1701 | case Builtin::BI__builtin_nontemporal_store: | |||
1702 | return SemaBuiltinNontemporalOverloaded(TheCallResult); | |||
1703 | case Builtin::BI__builtin_memcpy_inline: { | |||
1704 | clang::Expr *SizeOp = TheCall->getArg(2); | |||
1705 | // We warn about copying to or from `nullptr` pointers when `size` is | |||
1706 | // greater than 0. When `size` is value dependent we cannot evaluate its | |||
1707 | // value so we bail out. | |||
1708 | if (SizeOp->isValueDependent()) | |||
1709 | break; | |||
1710 | if (!SizeOp->EvaluateKnownConstInt(Context).isNullValue()) { | |||
1711 | CheckNonNullArgument(*this, TheCall->getArg(0), TheCall->getExprLoc()); | |||
1712 | CheckNonNullArgument(*this, TheCall->getArg(1), TheCall->getExprLoc()); | |||
1713 | } | |||
1714 | break; | |||
1715 | } | |||
1716 | #define BUILTIN(ID, TYPE, ATTRS) | |||
1717 | #define ATOMIC_BUILTIN(ID, TYPE, ATTRS) \ | |||
1718 | case Builtin::BI##ID: \ | |||
1719 | return SemaAtomicOpsOverloaded(TheCallResult, AtomicExpr::AO##ID); | |||
1720 | #include "clang/Basic/Builtins.def" | |||
1721 | case Builtin::BI__annotation: | |||
1722 | if (SemaBuiltinMSVCAnnotation(*this, TheCall)) | |||
1723 | return ExprError(); | |||
1724 | break; | |||
1725 | case Builtin::BI__builtin_annotation: | |||
1726 | if (SemaBuiltinAnnotation(*this, TheCall)) | |||
1727 | return ExprError(); | |||
1728 | break; | |||
1729 | case Builtin::BI__builtin_addressof: | |||
1730 | if (SemaBuiltinAddressof(*this, TheCall)) | |||
1731 | return ExprError(); | |||
1732 | break; | |||
1733 | case Builtin::BI__builtin_is_aligned: | |||
1734 | case Builtin::BI__builtin_align_up: | |||
1735 | case Builtin::BI__builtin_align_down: | |||
1736 | if (SemaBuiltinAlignment(*this, TheCall, BuiltinID)) | |||
1737 | return ExprError(); | |||
1738 | break; | |||
1739 | case Builtin::BI__builtin_add_overflow: | |||
1740 | case Builtin::BI__builtin_sub_overflow: | |||
1741 | case Builtin::BI__builtin_mul_overflow: | |||
1742 | if (SemaBuiltinOverflow(*this, TheCall, BuiltinID)) | |||
1743 | return ExprError(); | |||
1744 | break; | |||
1745 | case Builtin::BI__builtin_operator_new: | |||
1746 | case Builtin::BI__builtin_operator_delete: { | |||
1747 | bool IsDelete = BuiltinID == Builtin::BI__builtin_operator_delete; | |||
1748 | ExprResult Res = | |||
1749 | SemaBuiltinOperatorNewDeleteOverloaded(TheCallResult, IsDelete); | |||
1750 | if (Res.isInvalid()) | |||
1751 | CorrectDelayedTyposInExpr(TheCallResult.get()); | |||
1752 | return Res; | |||
1753 | } | |||
1754 | case Builtin::BI__builtin_dump_struct: { | |||
1755 | // We first want to ensure we are called with 2 arguments | |||
1756 | if (checkArgCount(*this, TheCall, 2)) | |||
1757 | return ExprError(); | |||
1758 | // Ensure that the first argument is of type 'struct XX *' | |||
1759 | const Expr *PtrArg = TheCall->getArg(0)->IgnoreParenImpCasts(); | |||
1760 | const QualType PtrArgType = PtrArg->getType(); | |||
1761 | if (!PtrArgType->isPointerType() || | |||
1762 | !PtrArgType->getPointeeType()->isRecordType()) { | |||
1763 | Diag(PtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible) | |||
1764 | << PtrArgType << "structure pointer" << 1 << 0 << 3 << 1 << PtrArgType | |||
1765 | << "structure pointer"; | |||
1766 | return ExprError(); | |||
1767 | } | |||
1768 | ||||
1769 | // Ensure that the second argument is of type 'FunctionType' | |||
1770 | const Expr *FnPtrArg = TheCall->getArg(1)->IgnoreImpCasts(); | |||
1771 | const QualType FnPtrArgType = FnPtrArg->getType(); | |||
1772 | if (!FnPtrArgType->isPointerType()) { | |||
1773 | Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible) | |||
1774 | << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3 << 2 | |||
1775 | << FnPtrArgType << "'int (*)(const char *, ...)'"; | |||
1776 | return ExprError(); | |||
1777 | } | |||
1778 | ||||
1779 | const auto *FuncType = | |||
1780 | FnPtrArgType->getPointeeType()->getAs<FunctionType>(); | |||
1781 | ||||
1782 | if (!FuncType) { | |||
1783 | Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible) | |||
1784 | << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3 << 2 | |||
1785 | << FnPtrArgType << "'int (*)(const char *, ...)'"; | |||
1786 | return ExprError(); | |||
1787 | } | |||
1788 | ||||
1789 | if (const auto *FT = dyn_cast<FunctionProtoType>(FuncType)) { | |||
1790 | if (!FT->getNumParams()) { | |||
1791 | Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible) | |||
1792 | << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3 | |||
1793 | << 2 << FnPtrArgType << "'int (*)(const char *, ...)'"; | |||
1794 | return ExprError(); | |||
1795 | } | |||
1796 | QualType PT = FT->getParamType(0); | |||
1797 | if (!FT->isVariadic() || FT->getReturnType() != Context.IntTy || | |||
1798 | !PT->isPointerType() || !PT->getPointeeType()->isCharType() || | |||
1799 | !PT->getPointeeType().isConstQualified()) { | |||
1800 | Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible) | |||
1801 | << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3 | |||
1802 | << 2 << FnPtrArgType << "'int (*)(const char *, ...)'"; | |||
1803 | return ExprError(); | |||
1804 | } | |||
1805 | } | |||
1806 | ||||
1807 | TheCall->setType(Context.IntTy); | |||
1808 | break; | |||
1809 | } | |||
1810 | case Builtin::BI__builtin_expect_with_probability: { | |||
1811 | // We first want to ensure we are called with 3 arguments | |||
1812 | if (checkArgCount(*this, TheCall, 3)) | |||
1813 | return ExprError(); | |||
1814 | // then check probability is constant float in range [0.0, 1.0] | |||
1815 | const Expr *ProbArg = TheCall->getArg(2); | |||
1816 | SmallVector<PartialDiagnosticAt, 8> Notes; | |||
1817 | Expr::EvalResult Eval; | |||
1818 | Eval.Diag = &Notes; | |||
1819 | if ((!ProbArg->EvaluateAsConstantExpr(Eval, Context)) || | |||
1820 | !Eval.Val.isFloat()) { | |||
1821 | Diag(ProbArg->getBeginLoc(), diag::err_probability_not_constant_float) | |||
1822 | << ProbArg->getSourceRange(); | |||
1823 | for (const PartialDiagnosticAt &PDiag : Notes) | |||
1824 | Diag(PDiag.first, PDiag.second); | |||
1825 | return ExprError(); | |||
1826 | } | |||
1827 | llvm::APFloat Probability = Eval.Val.getFloat(); | |||
1828 | bool LoseInfo = false; | |||
1829 | Probability.convert(llvm::APFloat::IEEEdouble(), | |||
1830 | llvm::RoundingMode::Dynamic, &LoseInfo); | |||
1831 | if (!(Probability >= llvm::APFloat(0.0) && | |||
1832 | Probability <= llvm::APFloat(1.0))) { | |||
1833 | Diag(ProbArg->getBeginLoc(), diag::err_probability_out_of_range) | |||
1834 | << ProbArg->getSourceRange(); | |||
1835 | return ExprError(); | |||
1836 | } | |||
1837 | break; | |||
1838 | } | |||
1839 | case Builtin::BI__builtin_preserve_access_index: | |||
1840 | if (SemaBuiltinPreserveAI(*this, TheCall)) | |||
1841 | return ExprError(); | |||
1842 | break; | |||
1843 | case Builtin::BI__builtin_call_with_static_chain: | |||
1844 | if (SemaBuiltinCallWithStaticChain(*this, TheCall)) | |||
1845 | return ExprError(); | |||
1846 | break; | |||
1847 | case Builtin::BI__exception_code: | |||
1848 | case Builtin::BI_exception_code: | |||
1849 | if (SemaBuiltinSEHScopeCheck(*this, TheCall, Scope::SEHExceptScope, | |||
1850 | diag::err_seh___except_block)) | |||
1851 | return ExprError(); | |||
1852 | break; | |||
1853 | case Builtin::BI__exception_info: | |||
1854 | case Builtin::BI_exception_info: | |||
1855 | if (SemaBuiltinSEHScopeCheck(*this, TheCall, Scope::SEHFilterScope, | |||
1856 | diag::err_seh___except_filter)) | |||
1857 | return ExprError(); | |||
1858 | break; | |||
1859 | case Builtin::BI__GetExceptionInfo: | |||
1860 | if (checkArgCount(*this, TheCall, 1)) | |||
1861 | return ExprError(); | |||
1862 | ||||
1863 | if (CheckCXXThrowOperand( | |||
1864 | TheCall->getBeginLoc(), | |||
1865 | Context.getExceptionObjectType(FDecl->getParamDecl(0)->getType()), | |||
1866 | TheCall)) | |||
1867 | return ExprError(); | |||
1868 | ||||
1869 | TheCall->setType(Context.VoidPtrTy); | |||
1870 | break; | |||
1871 | // OpenCL v2.0, s6.13.16 - Pipe functions | |||
1872 | case Builtin::BIread_pipe: | |||
1873 | case Builtin::BIwrite_pipe: | |||
1874 | // Since those two functions are declared with var args, we need a semantic | |||
1875 | // check for the argument. | |||
1876 | if (SemaBuiltinRWPipe(*this, TheCall)) | |||
1877 | return ExprError(); | |||
1878 | break; | |||
1879 | case Builtin::BIreserve_read_pipe: | |||
1880 | case Builtin::BIreserve_write_pipe: | |||
1881 | case Builtin::BIwork_group_reserve_read_pipe: | |||
1882 | case Builtin::BIwork_group_reserve_write_pipe: | |||
1883 | if (SemaBuiltinReserveRWPipe(*this, TheCall)) | |||
1884 | return ExprError(); | |||
1885 | break; | |||
1886 | case Builtin::BIsub_group_reserve_read_pipe: | |||
1887 | case Builtin::BIsub_group_reserve_write_pipe: | |||
1888 | if (checkOpenCLSubgroupExt(*this, TheCall) || | |||
1889 | SemaBuiltinReserveRWPipe(*this, TheCall)) | |||
1890 | return ExprError(); | |||
1891 | break; | |||
1892 | case Builtin::BIcommit_read_pipe: | |||
1893 | case Builtin::BIcommit_write_pipe: | |||
1894 | case Builtin::BIwork_group_commit_read_pipe: | |||
1895 | case Builtin::BIwork_group_commit_write_pipe: | |||
1896 | if (SemaBuiltinCommitRWPipe(*this, TheCall)) | |||
1897 | return ExprError(); | |||
1898 | break; | |||
1899 | case Builtin::BIsub_group_commit_read_pipe: | |||
1900 | case Builtin::BIsub_group_commit_write_pipe: | |||
1901 | if (checkOpenCLSubgroupExt(*this, TheCall) || | |||
1902 | SemaBuiltinCommitRWPipe(*this, TheCall)) | |||
1903 | return ExprError(); | |||
1904 | break; | |||
1905 | case Builtin::BIget_pipe_num_packets: | |||
1906 | case Builtin::BIget_pipe_max_packets: | |||
1907 | if (SemaBuiltinPipePackets(*this, TheCall)) | |||
1908 | return ExprError(); | |||
1909 | break; | |||
1910 | case Builtin::BIto_global: | |||
1911 | case Builtin::BIto_local: | |||
1912 | case Builtin::BIto_private: | |||
1913 | if (SemaOpenCLBuiltinToAddr(*this, BuiltinID, TheCall)) | |||
1914 | return ExprError(); | |||
1915 | break; | |||
1916 | // OpenCL v2.0, s6.13.17 - Enqueue kernel functions. | |||
1917 | case Builtin::BIenqueue_kernel: | |||
1918 | if (SemaOpenCLBuiltinEnqueueKernel(*this, TheCall)) | |||
1919 | return ExprError(); | |||
1920 | break; | |||
1921 | case Builtin::BIget_kernel_work_group_size: | |||
1922 | case Builtin::BIget_kernel_preferred_work_group_size_multiple: | |||
1923 | if (SemaOpenCLBuiltinKernelWorkGroupSize(*this, TheCall)) | |||
1924 | return ExprError(); | |||
1925 | break; | |||
1926 | case Builtin::BIget_kernel_max_sub_group_size_for_ndrange: | |||
1927 | case Builtin::BIget_kernel_sub_group_count_for_ndrange: | |||
1928 | if (SemaOpenCLBuiltinNDRangeAndBlock(*this, TheCall)) | |||
1929 | return ExprError(); | |||
1930 | break; | |||
1931 | case Builtin::BI__builtin_os_log_format: | |||
1932 | Cleanup.setExprNeedsCleanups(true); | |||
1933 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
1934 | case Builtin::BI__builtin_os_log_format_buffer_size: | |||
1935 | if (SemaBuiltinOSLogFormat(TheCall)) | |||
1936 | return ExprError(); | |||
1937 | break; | |||
1938 | case Builtin::BI__builtin_frame_address: | |||
1939 | case Builtin::BI__builtin_return_address: { | |||
1940 | if (SemaBuiltinConstantArgRange(TheCall, 0, 0, 0xFFFF)) | |||
1941 | return ExprError(); | |||
1942 | ||||
1943 | // -Wframe-address warning if non-zero passed to builtin | |||
1944 | // return/frame address. | |||
1945 | Expr::EvalResult Result; | |||
1946 | if (!TheCall->getArg(0)->isValueDependent() && | |||
1947 | TheCall->getArg(0)->EvaluateAsInt(Result, getASTContext()) && | |||
1948 | Result.Val.getInt() != 0) | |||
1949 | Diag(TheCall->getBeginLoc(), diag::warn_frame_address) | |||
1950 | << ((BuiltinID == Builtin::BI__builtin_return_address) | |||
1951 | ? "__builtin_return_address" | |||
1952 | : "__builtin_frame_address") | |||
1953 | << TheCall->getSourceRange(); | |||
1954 | break; | |||
1955 | } | |||
1956 | ||||
1957 | case Builtin::BI__builtin_matrix_transpose: | |||
1958 | return SemaBuiltinMatrixTranspose(TheCall, TheCallResult); | |||
1959 | ||||
1960 | case Builtin::BI__builtin_matrix_column_major_load: | |||
1961 | return SemaBuiltinMatrixColumnMajorLoad(TheCall, TheCallResult); | |||
1962 | ||||
1963 | case Builtin::BI__builtin_matrix_column_major_store: | |||
1964 | return SemaBuiltinMatrixColumnMajorStore(TheCall, TheCallResult); | |||
1965 | } | |||
1966 | ||||
1967 | // Since the target specific builtins for each arch overlap, only check those | |||
1968 | // of the arch we are compiling for. | |||
1969 | if (Context.BuiltinInfo.isTSBuiltin(BuiltinID)) { | |||
1970 | if (Context.BuiltinInfo.isAuxBuiltinID(BuiltinID)) { | |||
1971 | assert(Context.getAuxTargetInfo() &&((Context.getAuxTargetInfo() && "Aux Target Builtin, but not an aux target?" ) ? static_cast<void> (0) : __assert_fail ("Context.getAuxTargetInfo() && \"Aux Target Builtin, but not an aux target?\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 1972, __PRETTY_FUNCTION__)) | |||
1972 | "Aux Target Builtin, but not an aux target?")((Context.getAuxTargetInfo() && "Aux Target Builtin, but not an aux target?" ) ? static_cast<void> (0) : __assert_fail ("Context.getAuxTargetInfo() && \"Aux Target Builtin, but not an aux target?\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 1972, __PRETTY_FUNCTION__)); | |||
1973 | ||||
1974 | if (CheckTSBuiltinFunctionCall( | |||
1975 | *Context.getAuxTargetInfo(), | |||
1976 | Context.BuiltinInfo.getAuxBuiltinID(BuiltinID), TheCall)) | |||
1977 | return ExprError(); | |||
1978 | } else { | |||
1979 | if (CheckTSBuiltinFunctionCall(Context.getTargetInfo(), BuiltinID, | |||
1980 | TheCall)) | |||
1981 | return ExprError(); | |||
1982 | } | |||
1983 | } | |||
1984 | ||||
1985 | return TheCallResult; | |||
1986 | } | |||
1987 | ||||
1988 | // Get the valid immediate range for the specified NEON type code. | |||
1989 | static unsigned RFT(unsigned t, bool shift = false, bool ForceQuad = false) { | |||
1990 | NeonTypeFlags Type(t); | |||
1991 | int IsQuad = ForceQuad ? true : Type.isQuad(); | |||
1992 | switch (Type.getEltType()) { | |||
1993 | case NeonTypeFlags::Int8: | |||
1994 | case NeonTypeFlags::Poly8: | |||
1995 | return shift ? 7 : (8 << IsQuad) - 1; | |||
1996 | case NeonTypeFlags::Int16: | |||
1997 | case NeonTypeFlags::Poly16: | |||
1998 | return shift ? 15 : (4 << IsQuad) - 1; | |||
1999 | case NeonTypeFlags::Int32: | |||
2000 | return shift ? 31 : (2 << IsQuad) - 1; | |||
2001 | case NeonTypeFlags::Int64: | |||
2002 | case NeonTypeFlags::Poly64: | |||
2003 | return shift ? 63 : (1 << IsQuad) - 1; | |||
2004 | case NeonTypeFlags::Poly128: | |||
2005 | return shift ? 127 : (1 << IsQuad) - 1; | |||
2006 | case NeonTypeFlags::Float16: | |||
2007 | assert(!shift && "cannot shift float types!")((!shift && "cannot shift float types!") ? static_cast <void> (0) : __assert_fail ("!shift && \"cannot shift float types!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2007, __PRETTY_FUNCTION__)); | |||
2008 | return (4 << IsQuad) - 1; | |||
2009 | case NeonTypeFlags::Float32: | |||
2010 | assert(!shift && "cannot shift float types!")((!shift && "cannot shift float types!") ? static_cast <void> (0) : __assert_fail ("!shift && \"cannot shift float types!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2010, __PRETTY_FUNCTION__)); | |||
2011 | return (2 << IsQuad) - 1; | |||
2012 | case NeonTypeFlags::Float64: | |||
2013 | assert(!shift && "cannot shift float types!")((!shift && "cannot shift float types!") ? static_cast <void> (0) : __assert_fail ("!shift && \"cannot shift float types!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2013, __PRETTY_FUNCTION__)); | |||
2014 | return (1 << IsQuad) - 1; | |||
2015 | case NeonTypeFlags::BFloat16: | |||
2016 | assert(!shift && "cannot shift float types!")((!shift && "cannot shift float types!") ? static_cast <void> (0) : __assert_fail ("!shift && \"cannot shift float types!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2016, __PRETTY_FUNCTION__)); | |||
2017 | return (4 << IsQuad) - 1; | |||
2018 | } | |||
2019 | llvm_unreachable("Invalid NeonTypeFlag!")::llvm::llvm_unreachable_internal("Invalid NeonTypeFlag!", "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2019); | |||
2020 | } | |||
2021 | ||||
2022 | /// getNeonEltType - Return the QualType corresponding to the elements of | |||
2023 | /// the vector type specified by the NeonTypeFlags. This is used to check | |||
2024 | /// the pointer arguments for Neon load/store intrinsics. | |||
2025 | static QualType getNeonEltType(NeonTypeFlags Flags, ASTContext &Context, | |||
2026 | bool IsPolyUnsigned, bool IsInt64Long) { | |||
2027 | switch (Flags.getEltType()) { | |||
2028 | case NeonTypeFlags::Int8: | |||
2029 | return Flags.isUnsigned() ? Context.UnsignedCharTy : Context.SignedCharTy; | |||
2030 | case NeonTypeFlags::Int16: | |||
2031 | return Flags.isUnsigned() ? Context.UnsignedShortTy : Context.ShortTy; | |||
2032 | case NeonTypeFlags::Int32: | |||
2033 | return Flags.isUnsigned() ? Context.UnsignedIntTy : Context.IntTy; | |||
2034 | case NeonTypeFlags::Int64: | |||
2035 | if (IsInt64Long) | |||
2036 | return Flags.isUnsigned() ? Context.UnsignedLongTy : Context.LongTy; | |||
2037 | else | |||
2038 | return Flags.isUnsigned() ? Context.UnsignedLongLongTy | |||
2039 | : Context.LongLongTy; | |||
2040 | case NeonTypeFlags::Poly8: | |||
2041 | return IsPolyUnsigned ? Context.UnsignedCharTy : Context.SignedCharTy; | |||
2042 | case NeonTypeFlags::Poly16: | |||
2043 | return IsPolyUnsigned ? Context.UnsignedShortTy : Context.ShortTy; | |||
2044 | case NeonTypeFlags::Poly64: | |||
2045 | if (IsInt64Long) | |||
2046 | return Context.UnsignedLongTy; | |||
2047 | else | |||
2048 | return Context.UnsignedLongLongTy; | |||
2049 | case NeonTypeFlags::Poly128: | |||
2050 | break; | |||
2051 | case NeonTypeFlags::Float16: | |||
2052 | return Context.HalfTy; | |||
2053 | case NeonTypeFlags::Float32: | |||
2054 | return Context.FloatTy; | |||
2055 | case NeonTypeFlags::Float64: | |||
2056 | return Context.DoubleTy; | |||
2057 | case NeonTypeFlags::BFloat16: | |||
2058 | return Context.BFloat16Ty; | |||
2059 | } | |||
2060 | llvm_unreachable("Invalid NeonTypeFlag!")::llvm::llvm_unreachable_internal("Invalid NeonTypeFlag!", "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2060); | |||
2061 | } | |||
2062 | ||||
2063 | bool Sema::CheckSVEBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) { | |||
2064 | // Range check SVE intrinsics that take immediate values. | |||
2065 | SmallVector<std::tuple<int,int,int>, 3> ImmChecks; | |||
2066 | ||||
2067 | switch (BuiltinID) { | |||
2068 | default: | |||
2069 | return false; | |||
2070 | #define GET_SVE_IMMEDIATE_CHECK | |||
2071 | #include "clang/Basic/arm_sve_sema_rangechecks.inc" | |||
2072 | #undef GET_SVE_IMMEDIATE_CHECK | |||
2073 | } | |||
2074 | ||||
2075 | // Perform all the immediate checks for this builtin call. | |||
2076 | bool HasError = false; | |||
2077 | for (auto &I : ImmChecks) { | |||
2078 | int ArgNum, CheckTy, ElementSizeInBits; | |||
2079 | std::tie(ArgNum, CheckTy, ElementSizeInBits) = I; | |||
2080 | ||||
2081 | typedef bool(*OptionSetCheckFnTy)(int64_t Value); | |||
2082 | ||||
2083 | // Function that checks whether the operand (ArgNum) is an immediate | |||
2084 | // that is one of the predefined values. | |||
2085 | auto CheckImmediateInSet = [&](OptionSetCheckFnTy CheckImm, | |||
2086 | int ErrDiag) -> bool { | |||
2087 | // We can't check the value of a dependent argument. | |||
2088 | Expr *Arg = TheCall->getArg(ArgNum); | |||
2089 | if (Arg->isTypeDependent() || Arg->isValueDependent()) | |||
2090 | return false; | |||
2091 | ||||
2092 | // Check constant-ness first. | |||
2093 | llvm::APSInt Imm; | |||
2094 | if (SemaBuiltinConstantArg(TheCall, ArgNum, Imm)) | |||
2095 | return true; | |||
2096 | ||||
2097 | if (!CheckImm(Imm.getSExtValue())) | |||
2098 | return Diag(TheCall->getBeginLoc(), ErrDiag) << Arg->getSourceRange(); | |||
2099 | return false; | |||
2100 | }; | |||
2101 | ||||
2102 | switch ((SVETypeFlags::ImmCheckType)CheckTy) { | |||
2103 | case SVETypeFlags::ImmCheck0_31: | |||
2104 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, 31)) | |||
2105 | HasError = true; | |||
2106 | break; | |||
2107 | case SVETypeFlags::ImmCheck0_13: | |||
2108 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, 13)) | |||
2109 | HasError = true; | |||
2110 | break; | |||
2111 | case SVETypeFlags::ImmCheck1_16: | |||
2112 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 1, 16)) | |||
2113 | HasError = true; | |||
2114 | break; | |||
2115 | case SVETypeFlags::ImmCheck0_7: | |||
2116 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, 7)) | |||
2117 | HasError = true; | |||
2118 | break; | |||
2119 | case SVETypeFlags::ImmCheckExtract: | |||
2120 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, | |||
2121 | (2048 / ElementSizeInBits) - 1)) | |||
2122 | HasError = true; | |||
2123 | break; | |||
2124 | case SVETypeFlags::ImmCheckShiftRight: | |||
2125 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 1, ElementSizeInBits)) | |||
2126 | HasError = true; | |||
2127 | break; | |||
2128 | case SVETypeFlags::ImmCheckShiftRightNarrow: | |||
2129 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 1, | |||
2130 | ElementSizeInBits / 2)) | |||
2131 | HasError = true; | |||
2132 | break; | |||
2133 | case SVETypeFlags::ImmCheckShiftLeft: | |||
2134 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, | |||
2135 | ElementSizeInBits - 1)) | |||
2136 | HasError = true; | |||
2137 | break; | |||
2138 | case SVETypeFlags::ImmCheckLaneIndex: | |||
2139 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, | |||
2140 | (128 / (1 * ElementSizeInBits)) - 1)) | |||
2141 | HasError = true; | |||
2142 | break; | |||
2143 | case SVETypeFlags::ImmCheckLaneIndexCompRotate: | |||
2144 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, | |||
2145 | (128 / (2 * ElementSizeInBits)) - 1)) | |||
2146 | HasError = true; | |||
2147 | break; | |||
2148 | case SVETypeFlags::ImmCheckLaneIndexDot: | |||
2149 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, | |||
2150 | (128 / (4 * ElementSizeInBits)) - 1)) | |||
2151 | HasError = true; | |||
2152 | break; | |||
2153 | case SVETypeFlags::ImmCheckComplexRot90_270: | |||
2154 | if (CheckImmediateInSet([](int64_t V) { return V == 90 || V == 270; }, | |||
2155 | diag::err_rotation_argument_to_cadd)) | |||
2156 | HasError = true; | |||
2157 | break; | |||
2158 | case SVETypeFlags::ImmCheckComplexRotAll90: | |||
2159 | if (CheckImmediateInSet( | |||
2160 | [](int64_t V) { | |||
2161 | return V == 0 || V == 90 || V == 180 || V == 270; | |||
2162 | }, | |||
2163 | diag::err_rotation_argument_to_cmla)) | |||
2164 | HasError = true; | |||
2165 | break; | |||
2166 | case SVETypeFlags::ImmCheck0_1: | |||
2167 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, 1)) | |||
2168 | HasError = true; | |||
2169 | break; | |||
2170 | case SVETypeFlags::ImmCheck0_2: | |||
2171 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, 2)) | |||
2172 | HasError = true; | |||
2173 | break; | |||
2174 | case SVETypeFlags::ImmCheck0_3: | |||
2175 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, 0, 3)) | |||
2176 | HasError = true; | |||
2177 | break; | |||
2178 | } | |||
2179 | } | |||
2180 | ||||
2181 | return HasError; | |||
2182 | } | |||
2183 | ||||
2184 | bool Sema::CheckNeonBuiltinFunctionCall(const TargetInfo &TI, | |||
2185 | unsigned BuiltinID, CallExpr *TheCall) { | |||
2186 | llvm::APSInt Result; | |||
2187 | uint64_t mask = 0; | |||
2188 | unsigned TV = 0; | |||
2189 | int PtrArgNum = -1; | |||
2190 | bool HasConstPtr = false; | |||
2191 | switch (BuiltinID) { | |||
2192 | #define GET_NEON_OVERLOAD_CHECK | |||
2193 | #include "clang/Basic/arm_neon.inc" | |||
2194 | #include "clang/Basic/arm_fp16.inc" | |||
2195 | #undef GET_NEON_OVERLOAD_CHECK | |||
2196 | } | |||
2197 | ||||
2198 | // For NEON intrinsics which are overloaded on vector element type, validate | |||
2199 | // the immediate which specifies which variant to emit. | |||
2200 | unsigned ImmArg = TheCall->getNumArgs()-1; | |||
2201 | if (mask) { | |||
2202 | if (SemaBuiltinConstantArg(TheCall, ImmArg, Result)) | |||
2203 | return true; | |||
2204 | ||||
2205 | TV = Result.getLimitedValue(64); | |||
2206 | if ((TV > 63) || (mask & (1ULL << TV)) == 0) | |||
2207 | return Diag(TheCall->getBeginLoc(), diag::err_invalid_neon_type_code) | |||
2208 | << TheCall->getArg(ImmArg)->getSourceRange(); | |||
2209 | } | |||
2210 | ||||
2211 | if (PtrArgNum >= 0) { | |||
2212 | // Check that pointer arguments have the specified type. | |||
2213 | Expr *Arg = TheCall->getArg(PtrArgNum); | |||
2214 | if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Arg)) | |||
2215 | Arg = ICE->getSubExpr(); | |||
2216 | ExprResult RHS = DefaultFunctionArrayLvalueConversion(Arg); | |||
2217 | QualType RHSTy = RHS.get()->getType(); | |||
2218 | ||||
2219 | llvm::Triple::ArchType Arch = TI.getTriple().getArch(); | |||
2220 | bool IsPolyUnsigned = Arch == llvm::Triple::aarch64 || | |||
2221 | Arch == llvm::Triple::aarch64_32 || | |||
2222 | Arch == llvm::Triple::aarch64_be; | |||
2223 | bool IsInt64Long = TI.getInt64Type() == TargetInfo::SignedLong; | |||
2224 | QualType EltTy = | |||
2225 | getNeonEltType(NeonTypeFlags(TV), Context, IsPolyUnsigned, IsInt64Long); | |||
2226 | if (HasConstPtr) | |||
2227 | EltTy = EltTy.withConst(); | |||
2228 | QualType LHSTy = Context.getPointerType(EltTy); | |||
2229 | AssignConvertType ConvTy; | |||
2230 | ConvTy = CheckSingleAssignmentConstraints(LHSTy, RHS); | |||
2231 | if (RHS.isInvalid()) | |||
2232 | return true; | |||
2233 | if (DiagnoseAssignmentResult(ConvTy, Arg->getBeginLoc(), LHSTy, RHSTy, | |||
2234 | RHS.get(), AA_Assigning)) | |||
2235 | return true; | |||
2236 | } | |||
2237 | ||||
2238 | // For NEON intrinsics which take an immediate value as part of the | |||
2239 | // instruction, range check them here. | |||
2240 | unsigned i = 0, l = 0, u = 0; | |||
2241 | switch (BuiltinID) { | |||
2242 | default: | |||
2243 | return false; | |||
2244 | #define GET_NEON_IMMEDIATE_CHECK | |||
2245 | #include "clang/Basic/arm_neon.inc" | |||
2246 | #include "clang/Basic/arm_fp16.inc" | |||
2247 | #undef GET_NEON_IMMEDIATE_CHECK | |||
2248 | } | |||
2249 | ||||
2250 | return SemaBuiltinConstantArgRange(TheCall, i, l, u + l); | |||
2251 | } | |||
2252 | ||||
2253 | bool Sema::CheckMVEBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) { | |||
2254 | switch (BuiltinID) { | |||
2255 | default: | |||
2256 | return false; | |||
2257 | #include "clang/Basic/arm_mve_builtin_sema.inc" | |||
2258 | } | |||
2259 | } | |||
2260 | ||||
2261 | bool Sema::CheckCDEBuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID, | |||
2262 | CallExpr *TheCall) { | |||
2263 | bool Err = false; | |||
2264 | switch (BuiltinID) { | |||
2265 | default: | |||
2266 | return false; | |||
2267 | #include "clang/Basic/arm_cde_builtin_sema.inc" | |||
2268 | } | |||
2269 | ||||
2270 | if (Err) | |||
2271 | return true; | |||
2272 | ||||
2273 | return CheckARMCoprocessorImmediate(TI, TheCall->getArg(0), /*WantCDE*/ true); | |||
2274 | } | |||
2275 | ||||
2276 | bool Sema::CheckARMCoprocessorImmediate(const TargetInfo &TI, | |||
2277 | const Expr *CoprocArg, bool WantCDE) { | |||
2278 | if (isConstantEvaluated()) | |||
2279 | return false; | |||
2280 | ||||
2281 | // We can't check the value of a dependent argument. | |||
2282 | if (CoprocArg->isTypeDependent() || CoprocArg->isValueDependent()) | |||
2283 | return false; | |||
2284 | ||||
2285 | llvm::APSInt CoprocNoAP = *CoprocArg->getIntegerConstantExpr(Context); | |||
2286 | int64_t CoprocNo = CoprocNoAP.getExtValue(); | |||
2287 | assert(CoprocNo >= 0 && "Coprocessor immediate must be non-negative")((CoprocNo >= 0 && "Coprocessor immediate must be non-negative" ) ? static_cast<void> (0) : __assert_fail ("CoprocNo >= 0 && \"Coprocessor immediate must be non-negative\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2287, __PRETTY_FUNCTION__)); | |||
2288 | ||||
2289 | uint32_t CDECoprocMask = TI.getARMCDECoprocMask(); | |||
2290 | bool IsCDECoproc = CoprocNo <= 7 && (CDECoprocMask & (1 << CoprocNo)); | |||
2291 | ||||
2292 | if (IsCDECoproc != WantCDE) | |||
2293 | return Diag(CoprocArg->getBeginLoc(), diag::err_arm_invalid_coproc) | |||
2294 | << (int)CoprocNo << (int)WantCDE << CoprocArg->getSourceRange(); | |||
2295 | ||||
2296 | return false; | |||
2297 | } | |||
2298 | ||||
2299 | bool Sema::CheckARMBuiltinExclusiveCall(unsigned BuiltinID, CallExpr *TheCall, | |||
2300 | unsigned MaxWidth) { | |||
2301 | assert((BuiltinID == ARM::BI__builtin_arm_ldrex ||(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2302 | BuiltinID == ARM::BI__builtin_arm_ldaex ||(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2303 | BuiltinID == ARM::BI__builtin_arm_strex ||(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2304 | BuiltinID == ARM::BI__builtin_arm_stlex ||(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2305 | BuiltinID == AArch64::BI__builtin_arm_ldrex ||(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2306 | BuiltinID == AArch64::BI__builtin_arm_ldaex ||(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2307 | BuiltinID == AArch64::BI__builtin_arm_strex ||(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2308 | BuiltinID == AArch64::BI__builtin_arm_stlex) &&(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)) | |||
2309 | "unexpected ARM builtin")(((BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM ::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64 ::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == ARM::BI__builtin_arm_ldrex || BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || BuiltinID == AArch64::BI__builtin_arm_ldaex || BuiltinID == AArch64::BI__builtin_arm_strex || BuiltinID == AArch64::BI__builtin_arm_stlex) && \"unexpected ARM builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2309, __PRETTY_FUNCTION__)); | |||
2310 | bool IsLdrex = BuiltinID == ARM::BI__builtin_arm_ldrex || | |||
2311 | BuiltinID == ARM::BI__builtin_arm_ldaex || | |||
2312 | BuiltinID == AArch64::BI__builtin_arm_ldrex || | |||
2313 | BuiltinID == AArch64::BI__builtin_arm_ldaex; | |||
2314 | ||||
2315 | DeclRefExpr *DRE =cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts()); | |||
2316 | ||||
2317 | // Ensure that we have the proper number of arguments. | |||
2318 | if (checkArgCount(*this, TheCall, IsLdrex ? 1 : 2)) | |||
2319 | return true; | |||
2320 | ||||
2321 | // Inspect the pointer argument of the atomic builtin. This should always be | |||
2322 | // a pointer type, whose element is an integral scalar or pointer type. | |||
2323 | // Because it is a pointer type, we don't have to worry about any implicit | |||
2324 | // casts here. | |||
2325 | Expr *PointerArg = TheCall->getArg(IsLdrex ? 0 : 1); | |||
2326 | ExprResult PointerArgRes = DefaultFunctionArrayLvalueConversion(PointerArg); | |||
2327 | if (PointerArgRes.isInvalid()) | |||
2328 | return true; | |||
2329 | PointerArg = PointerArgRes.get(); | |||
2330 | ||||
2331 | const PointerType *pointerType = PointerArg->getType()->getAs<PointerType>(); | |||
2332 | if (!pointerType) { | |||
2333 | Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer) | |||
2334 | << PointerArg->getType() << PointerArg->getSourceRange(); | |||
2335 | return true; | |||
2336 | } | |||
2337 | ||||
2338 | // ldrex takes a "const volatile T*" and strex takes a "volatile T*". Our next | |||
2339 | // task is to insert the appropriate casts into the AST. First work out just | |||
2340 | // what the appropriate type is. | |||
2341 | QualType ValType = pointerType->getPointeeType(); | |||
2342 | QualType AddrType = ValType.getUnqualifiedType().withVolatile(); | |||
2343 | if (IsLdrex) | |||
2344 | AddrType.addConst(); | |||
2345 | ||||
2346 | // Issue a warning if the cast is dodgy. | |||
2347 | CastKind CastNeeded = CK_NoOp; | |||
2348 | if (!AddrType.isAtLeastAsQualifiedAs(ValType)) { | |||
2349 | CastNeeded = CK_BitCast; | |||
2350 | Diag(DRE->getBeginLoc(), diag::ext_typecheck_convert_discards_qualifiers) | |||
2351 | << PointerArg->getType() << Context.getPointerType(AddrType) | |||
2352 | << AA_Passing << PointerArg->getSourceRange(); | |||
2353 | } | |||
2354 | ||||
2355 | // Finally, do the cast and replace the argument with the corrected version. | |||
2356 | AddrType = Context.getPointerType(AddrType); | |||
2357 | PointerArgRes = ImpCastExprToType(PointerArg, AddrType, CastNeeded); | |||
2358 | if (PointerArgRes.isInvalid()) | |||
2359 | return true; | |||
2360 | PointerArg = PointerArgRes.get(); | |||
2361 | ||||
2362 | TheCall->setArg(IsLdrex ? 0 : 1, PointerArg); | |||
2363 | ||||
2364 | // In general, we allow ints, floats and pointers to be loaded and stored. | |||
2365 | if (!ValType->isIntegerType() && !ValType->isAnyPointerType() && | |||
2366 | !ValType->isBlockPointerType() && !ValType->isFloatingType()) { | |||
2367 | Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer_intfltptr) | |||
2368 | << PointerArg->getType() << PointerArg->getSourceRange(); | |||
2369 | return true; | |||
2370 | } | |||
2371 | ||||
2372 | // But ARM doesn't have instructions to deal with 128-bit versions. | |||
2373 | if (Context.getTypeSize(ValType) > MaxWidth) { | |||
2374 | assert(MaxWidth == 64 && "Diagnostic unexpectedly inaccurate")((MaxWidth == 64 && "Diagnostic unexpectedly inaccurate" ) ? static_cast<void> (0) : __assert_fail ("MaxWidth == 64 && \"Diagnostic unexpectedly inaccurate\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2374, __PRETTY_FUNCTION__)); | |||
2375 | Diag(DRE->getBeginLoc(), diag::err_atomic_exclusive_builtin_pointer_size) | |||
2376 | << PointerArg->getType() << PointerArg->getSourceRange(); | |||
2377 | return true; | |||
2378 | } | |||
2379 | ||||
2380 | switch (ValType.getObjCLifetime()) { | |||
2381 | case Qualifiers::OCL_None: | |||
2382 | case Qualifiers::OCL_ExplicitNone: | |||
2383 | // okay | |||
2384 | break; | |||
2385 | ||||
2386 | case Qualifiers::OCL_Weak: | |||
2387 | case Qualifiers::OCL_Strong: | |||
2388 | case Qualifiers::OCL_Autoreleasing: | |||
2389 | Diag(DRE->getBeginLoc(), diag::err_arc_atomic_ownership) | |||
2390 | << ValType << PointerArg->getSourceRange(); | |||
2391 | return true; | |||
2392 | } | |||
2393 | ||||
2394 | if (IsLdrex) { | |||
2395 | TheCall->setType(ValType); | |||
2396 | return false; | |||
2397 | } | |||
2398 | ||||
2399 | // Initialize the argument to be stored. | |||
2400 | ExprResult ValArg = TheCall->getArg(0); | |||
2401 | InitializedEntity Entity = InitializedEntity::InitializeParameter( | |||
2402 | Context, ValType, /*consume*/ false); | |||
2403 | ValArg = PerformCopyInitialization(Entity, SourceLocation(), ValArg); | |||
2404 | if (ValArg.isInvalid()) | |||
2405 | return true; | |||
2406 | TheCall->setArg(0, ValArg.get()); | |||
2407 | ||||
2408 | // __builtin_arm_strex always returns an int. It's marked as such in the .def, | |||
2409 | // but the custom checker bypasses all default analysis. | |||
2410 | TheCall->setType(Context.IntTy); | |||
2411 | return false; | |||
2412 | } | |||
2413 | ||||
2414 | bool Sema::CheckARMBuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID, | |||
2415 | CallExpr *TheCall) { | |||
2416 | if (BuiltinID == ARM::BI__builtin_arm_ldrex || | |||
2417 | BuiltinID == ARM::BI__builtin_arm_ldaex || | |||
2418 | BuiltinID == ARM::BI__builtin_arm_strex || | |||
2419 | BuiltinID == ARM::BI__builtin_arm_stlex) { | |||
2420 | return CheckARMBuiltinExclusiveCall(BuiltinID, TheCall, 64); | |||
2421 | } | |||
2422 | ||||
2423 | if (BuiltinID == ARM::BI__builtin_arm_prefetch) { | |||
2424 | return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1) || | |||
2425 | SemaBuiltinConstantArgRange(TheCall, 2, 0, 1); | |||
2426 | } | |||
2427 | ||||
2428 | if (BuiltinID == ARM::BI__builtin_arm_rsr64 || | |||
2429 | BuiltinID == ARM::BI__builtin_arm_wsr64) | |||
2430 | return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 3, false); | |||
2431 | ||||
2432 | if (BuiltinID == ARM::BI__builtin_arm_rsr || | |||
2433 | BuiltinID == ARM::BI__builtin_arm_rsrp || | |||
2434 | BuiltinID == ARM::BI__builtin_arm_wsr || | |||
2435 | BuiltinID == ARM::BI__builtin_arm_wsrp) | |||
2436 | return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 5, true); | |||
2437 | ||||
2438 | if (CheckNeonBuiltinFunctionCall(TI, BuiltinID, TheCall)) | |||
2439 | return true; | |||
2440 | if (CheckMVEBuiltinFunctionCall(BuiltinID, TheCall)) | |||
2441 | return true; | |||
2442 | if (CheckCDEBuiltinFunctionCall(TI, BuiltinID, TheCall)) | |||
2443 | return true; | |||
2444 | ||||
2445 | // For intrinsics which take an immediate value as part of the instruction, | |||
2446 | // range check them here. | |||
2447 | // FIXME: VFP Intrinsics should error if VFP not present. | |||
2448 | switch (BuiltinID) { | |||
2449 | default: return false; | |||
2450 | case ARM::BI__builtin_arm_ssat: | |||
2451 | return SemaBuiltinConstantArgRange(TheCall, 1, 1, 32); | |||
2452 | case ARM::BI__builtin_arm_usat: | |||
2453 | return SemaBuiltinConstantArgRange(TheCall, 1, 0, 31); | |||
2454 | case ARM::BI__builtin_arm_ssat16: | |||
2455 | return SemaBuiltinConstantArgRange(TheCall, 1, 1, 16); | |||
2456 | case ARM::BI__builtin_arm_usat16: | |||
2457 | return SemaBuiltinConstantArgRange(TheCall, 1, 0, 15); | |||
2458 | case ARM::BI__builtin_arm_vcvtr_f: | |||
2459 | case ARM::BI__builtin_arm_vcvtr_d: | |||
2460 | return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1); | |||
2461 | case ARM::BI__builtin_arm_dmb: | |||
2462 | case ARM::BI__builtin_arm_dsb: | |||
2463 | case ARM::BI__builtin_arm_isb: | |||
2464 | case ARM::BI__builtin_arm_dbg: | |||
2465 | return SemaBuiltinConstantArgRange(TheCall, 0, 0, 15); | |||
2466 | case ARM::BI__builtin_arm_cdp: | |||
2467 | case ARM::BI__builtin_arm_cdp2: | |||
2468 | case ARM::BI__builtin_arm_mcr: | |||
2469 | case ARM::BI__builtin_arm_mcr2: | |||
2470 | case ARM::BI__builtin_arm_mrc: | |||
2471 | case ARM::BI__builtin_arm_mrc2: | |||
2472 | case ARM::BI__builtin_arm_mcrr: | |||
2473 | case ARM::BI__builtin_arm_mcrr2: | |||
2474 | case ARM::BI__builtin_arm_mrrc: | |||
2475 | case ARM::BI__builtin_arm_mrrc2: | |||
2476 | case ARM::BI__builtin_arm_ldc: | |||
2477 | case ARM::BI__builtin_arm_ldcl: | |||
2478 | case ARM::BI__builtin_arm_ldc2: | |||
2479 | case ARM::BI__builtin_arm_ldc2l: | |||
2480 | case ARM::BI__builtin_arm_stc: | |||
2481 | case ARM::BI__builtin_arm_stcl: | |||
2482 | case ARM::BI__builtin_arm_stc2: | |||
2483 | case ARM::BI__builtin_arm_stc2l: | |||
2484 | return SemaBuiltinConstantArgRange(TheCall, 0, 0, 15) || | |||
2485 | CheckARMCoprocessorImmediate(TI, TheCall->getArg(0), | |||
2486 | /*WantCDE*/ false); | |||
2487 | } | |||
2488 | } | |||
2489 | ||||
2490 | bool Sema::CheckAArch64BuiltinFunctionCall(const TargetInfo &TI, | |||
2491 | unsigned BuiltinID, | |||
2492 | CallExpr *TheCall) { | |||
2493 | if (BuiltinID == AArch64::BI__builtin_arm_ldrex || | |||
2494 | BuiltinID == AArch64::BI__builtin_arm_ldaex || | |||
2495 | BuiltinID == AArch64::BI__builtin_arm_strex || | |||
2496 | BuiltinID == AArch64::BI__builtin_arm_stlex) { | |||
2497 | return CheckARMBuiltinExclusiveCall(BuiltinID, TheCall, 128); | |||
2498 | } | |||
2499 | ||||
2500 | if (BuiltinID == AArch64::BI__builtin_arm_prefetch) { | |||
2501 | return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1) || | |||
2502 | SemaBuiltinConstantArgRange(TheCall, 2, 0, 2) || | |||
2503 | SemaBuiltinConstantArgRange(TheCall, 3, 0, 1) || | |||
2504 | SemaBuiltinConstantArgRange(TheCall, 4, 0, 1); | |||
2505 | } | |||
2506 | ||||
2507 | if (BuiltinID == AArch64::BI__builtin_arm_rsr64 || | |||
2508 | BuiltinID == AArch64::BI__builtin_arm_wsr64) | |||
2509 | return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 5, true); | |||
2510 | ||||
2511 | // Memory Tagging Extensions (MTE) Intrinsics | |||
2512 | if (BuiltinID == AArch64::BI__builtin_arm_irg || | |||
2513 | BuiltinID == AArch64::BI__builtin_arm_addg || | |||
2514 | BuiltinID == AArch64::BI__builtin_arm_gmi || | |||
2515 | BuiltinID == AArch64::BI__builtin_arm_ldg || | |||
2516 | BuiltinID == AArch64::BI__builtin_arm_stg || | |||
2517 | BuiltinID == AArch64::BI__builtin_arm_subp) { | |||
2518 | return SemaBuiltinARMMemoryTaggingCall(BuiltinID, TheCall); | |||
2519 | } | |||
2520 | ||||
2521 | if (BuiltinID == AArch64::BI__builtin_arm_rsr || | |||
2522 | BuiltinID == AArch64::BI__builtin_arm_rsrp || | |||
2523 | BuiltinID == AArch64::BI__builtin_arm_wsr || | |||
2524 | BuiltinID == AArch64::BI__builtin_arm_wsrp) | |||
2525 | return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 5, true); | |||
2526 | ||||
2527 | // Only check the valid encoding range. Any constant in this range would be | |||
2528 | // converted to a register of the form S1_2_C3_C4_5. Let the hardware throw | |||
2529 | // an exception for incorrect registers. This matches MSVC behavior. | |||
2530 | if (BuiltinID == AArch64::BI_ReadStatusReg || | |||
2531 | BuiltinID == AArch64::BI_WriteStatusReg) | |||
2532 | return SemaBuiltinConstantArgRange(TheCall, 0, 0, 0x7fff); | |||
2533 | ||||
2534 | if (BuiltinID == AArch64::BI__getReg) | |||
2535 | return SemaBuiltinConstantArgRange(TheCall, 0, 0, 31); | |||
2536 | ||||
2537 | if (CheckNeonBuiltinFunctionCall(TI, BuiltinID, TheCall)) | |||
2538 | return true; | |||
2539 | ||||
2540 | if (CheckSVEBuiltinFunctionCall(BuiltinID, TheCall)) | |||
2541 | return true; | |||
2542 | ||||
2543 | // For intrinsics which take an immediate value as part of the instruction, | |||
2544 | // range check them here. | |||
2545 | unsigned i = 0, l = 0, u = 0; | |||
2546 | switch (BuiltinID) { | |||
2547 | default: return false; | |||
2548 | case AArch64::BI__builtin_arm_dmb: | |||
2549 | case AArch64::BI__builtin_arm_dsb: | |||
2550 | case AArch64::BI__builtin_arm_isb: l = 0; u = 15; break; | |||
2551 | case AArch64::BI__builtin_arm_tcancel: l = 0; u = 65535; break; | |||
2552 | } | |||
2553 | ||||
2554 | return SemaBuiltinConstantArgRange(TheCall, i, l, u + l); | |||
2555 | } | |||
2556 | ||||
2557 | static bool isValidBPFPreserveFieldInfoArg(Expr *Arg) { | |||
2558 | if (Arg->getType()->getAsPlaceholderType()) | |||
2559 | return false; | |||
2560 | ||||
2561 | // The first argument needs to be a record field access. | |||
2562 | // If it is an array element access, we delay decision | |||
2563 | // to BPF backend to check whether the access is a | |||
2564 | // field access or not. | |||
2565 | return (Arg->IgnoreParens()->getObjectKind() == OK_BitField || | |||
2566 | dyn_cast<MemberExpr>(Arg->IgnoreParens()) || | |||
2567 | dyn_cast<ArraySubscriptExpr>(Arg->IgnoreParens())); | |||
2568 | } | |||
2569 | ||||
2570 | static bool isEltOfVectorTy(ASTContext &Context, CallExpr *Call, Sema &S, | |||
2571 | QualType VectorTy, QualType EltTy) { | |||
2572 | QualType VectorEltTy = VectorTy->castAs<VectorType>()->getElementType(); | |||
2573 | if (!Context.hasSameType(VectorEltTy, EltTy)) { | |||
2574 | S.Diag(Call->getBeginLoc(), diag::err_typecheck_call_different_arg_types) | |||
2575 | << Call->getSourceRange() << VectorEltTy << EltTy; | |||
2576 | return false; | |||
2577 | } | |||
2578 | return true; | |||
2579 | } | |||
2580 | ||||
2581 | static bool isValidBPFPreserveTypeInfoArg(Expr *Arg) { | |||
2582 | QualType ArgType = Arg->getType(); | |||
2583 | if (ArgType->getAsPlaceholderType()) | |||
2584 | return false; | |||
2585 | ||||
2586 | // for TYPE_EXISTENCE/TYPE_SIZEOF reloc type | |||
2587 | // format: | |||
2588 | // 1. __builtin_preserve_type_info(*(<type> *)0, flag); | |||
2589 | // 2. <type> var; | |||
2590 | // __builtin_preserve_type_info(var, flag); | |||
2591 | if (!dyn_cast<DeclRefExpr>(Arg->IgnoreParens()) && | |||
2592 | !dyn_cast<UnaryOperator>(Arg->IgnoreParens())) | |||
2593 | return false; | |||
2594 | ||||
2595 | // Typedef type. | |||
2596 | if (ArgType->getAs<TypedefType>()) | |||
2597 | return true; | |||
2598 | ||||
2599 | // Record type or Enum type. | |||
2600 | const Type *Ty = ArgType->getUnqualifiedDesugaredType(); | |||
2601 | if (const auto *RT = Ty->getAs<RecordType>()) { | |||
2602 | if (!RT->getDecl()->getDeclName().isEmpty()) | |||
2603 | return true; | |||
2604 | } else if (const auto *ET = Ty->getAs<EnumType>()) { | |||
2605 | if (!ET->getDecl()->getDeclName().isEmpty()) | |||
2606 | return true; | |||
2607 | } | |||
2608 | ||||
2609 | return false; | |||
2610 | } | |||
2611 | ||||
2612 | static bool isValidBPFPreserveEnumValueArg(Expr *Arg) { | |||
2613 | QualType ArgType = Arg->getType(); | |||
2614 | if (ArgType->getAsPlaceholderType()) | |||
2615 | return false; | |||
2616 | ||||
2617 | // for ENUM_VALUE_EXISTENCE/ENUM_VALUE reloc type | |||
2618 | // format: | |||
2619 | // __builtin_preserve_enum_value(*(<enum_type> *)<enum_value>, | |||
2620 | // flag); | |||
2621 | const auto *UO = dyn_cast<UnaryOperator>(Arg->IgnoreParens()); | |||
2622 | if (!UO) | |||
2623 | return false; | |||
2624 | ||||
2625 | const auto *CE = dyn_cast<CStyleCastExpr>(UO->getSubExpr()); | |||
2626 | if (!CE || CE->getCastKind() != CK_IntegralToPointer) | |||
2627 | return false; | |||
2628 | ||||
2629 | // The integer must be from an EnumConstantDecl. | |||
2630 | const auto *DR = dyn_cast<DeclRefExpr>(CE->getSubExpr()); | |||
2631 | if (!DR) | |||
2632 | return false; | |||
2633 | ||||
2634 | const EnumConstantDecl *Enumerator = | |||
2635 | dyn_cast<EnumConstantDecl>(DR->getDecl()); | |||
2636 | if (!Enumerator) | |||
2637 | return false; | |||
2638 | ||||
2639 | // The type must be EnumType. | |||
2640 | const Type *Ty = ArgType->getUnqualifiedDesugaredType(); | |||
2641 | const auto *ET = Ty->getAs<EnumType>(); | |||
2642 | if (!ET) | |||
2643 | return false; | |||
2644 | ||||
2645 | // The enum value must be supported. | |||
2646 | for (auto *EDI : ET->getDecl()->enumerators()) { | |||
2647 | if (EDI == Enumerator) | |||
2648 | return true; | |||
2649 | } | |||
2650 | ||||
2651 | return false; | |||
2652 | } | |||
2653 | ||||
2654 | bool Sema::CheckBPFBuiltinFunctionCall(unsigned BuiltinID, | |||
2655 | CallExpr *TheCall) { | |||
2656 | assert((BuiltinID == BPF::BI__builtin_preserve_field_info ||(((BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && "unexpected BPF builtin") ? static_cast<void> (0) : __assert_fail ("(BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && \"unexpected BPF builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2660, __PRETTY_FUNCTION__)) | |||
2657 | BuiltinID == BPF::BI__builtin_btf_type_id ||(((BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && "unexpected BPF builtin") ? static_cast<void> (0) : __assert_fail ("(BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && \"unexpected BPF builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2660, __PRETTY_FUNCTION__)) | |||
2658 | BuiltinID == BPF::BI__builtin_preserve_type_info ||(((BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && "unexpected BPF builtin") ? static_cast<void> (0) : __assert_fail ("(BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && \"unexpected BPF builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2660, __PRETTY_FUNCTION__)) | |||
2659 | BuiltinID == BPF::BI__builtin_preserve_enum_value) &&(((BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && "unexpected BPF builtin") ? static_cast<void> (0) : __assert_fail ("(BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && \"unexpected BPF builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2660, __PRETTY_FUNCTION__)) | |||
2660 | "unexpected BPF builtin")(((BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && "unexpected BPF builtin") ? static_cast<void> (0) : __assert_fail ("(BuiltinID == BPF::BI__builtin_preserve_field_info || BuiltinID == BPF::BI__builtin_btf_type_id || BuiltinID == BPF::BI__builtin_preserve_type_info || BuiltinID == BPF::BI__builtin_preserve_enum_value) && \"unexpected BPF builtin\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 2660, __PRETTY_FUNCTION__)); | |||
2661 | ||||
2662 | if (checkArgCount(*this, TheCall, 2)) | |||
2663 | return true; | |||
2664 | ||||
2665 | // The second argument needs to be a constant int | |||
2666 | Expr *Arg = TheCall->getArg(1); | |||
2667 | Optional<llvm::APSInt> Value = Arg->getIntegerConstantExpr(Context); | |||
2668 | diag::kind kind; | |||
2669 | if (!Value) { | |||
2670 | if (BuiltinID == BPF::BI__builtin_preserve_field_info) | |||
2671 | kind = diag::err_preserve_field_info_not_const; | |||
2672 | else if (BuiltinID == BPF::BI__builtin_btf_type_id) | |||
2673 | kind = diag::err_btf_type_id_not_const; | |||
2674 | else if (BuiltinID == BPF::BI__builtin_preserve_type_info) | |||
2675 | kind = diag::err_preserve_type_info_not_const; | |||
2676 | else | |||
2677 | kind = diag::err_preserve_enum_value_not_const; | |||
2678 | Diag(Arg->getBeginLoc(), kind) << 2 << Arg->getSourceRange(); | |||
2679 | return true; | |||
2680 | } | |||
2681 | ||||
2682 | // The first argument | |||
2683 | Arg = TheCall->getArg(0); | |||
2684 | bool InvalidArg = false; | |||
2685 | bool ReturnUnsignedInt = true; | |||
2686 | if (BuiltinID == BPF::BI__builtin_preserve_field_info) { | |||
2687 | if (!isValidBPFPreserveFieldInfoArg(Arg)) { | |||
2688 | InvalidArg = true; | |||
2689 | kind = diag::err_preserve_field_info_not_field; | |||
2690 | } | |||
2691 | } else if (BuiltinID == BPF::BI__builtin_preserve_type_info) { | |||
2692 | if (!isValidBPFPreserveTypeInfoArg(Arg)) { | |||
2693 | InvalidArg = true; | |||
2694 | kind = diag::err_preserve_type_info_invalid; | |||
2695 | } | |||
2696 | } else if (BuiltinID == BPF::BI__builtin_preserve_enum_value) { | |||
2697 | if (!isValidBPFPreserveEnumValueArg(Arg)) { | |||
2698 | InvalidArg = true; | |||
2699 | kind = diag::err_preserve_enum_value_invalid; | |||
2700 | } | |||
2701 | ReturnUnsignedInt = false; | |||
2702 | } else if (BuiltinID == BPF::BI__builtin_btf_type_id) { | |||
2703 | ReturnUnsignedInt = false; | |||
2704 | } | |||
2705 | ||||
2706 | if (InvalidArg) { | |||
2707 | Diag(Arg->getBeginLoc(), kind) << 1 << Arg->getSourceRange(); | |||
2708 | return true; | |||
2709 | } | |||
2710 | ||||
2711 | if (ReturnUnsignedInt) | |||
2712 | TheCall->setType(Context.UnsignedIntTy); | |||
2713 | else | |||
2714 | TheCall->setType(Context.UnsignedLongTy); | |||
2715 | return false; | |||
2716 | } | |||
2717 | ||||
2718 | bool Sema::CheckHexagonBuiltinArgument(unsigned BuiltinID, CallExpr *TheCall) { | |||
2719 | struct ArgInfo { | |||
2720 | uint8_t OpNum; | |||
2721 | bool IsSigned; | |||
2722 | uint8_t BitWidth; | |||
2723 | uint8_t Align; | |||
2724 | }; | |||
2725 | struct BuiltinInfo { | |||
2726 | unsigned BuiltinID; | |||
2727 | ArgInfo Infos[2]; | |||
2728 | }; | |||
2729 | ||||
2730 | static BuiltinInfo Infos[] = { | |||
2731 | { Hexagon::BI__builtin_circ_ldd, {{ 3, true, 4, 3 }} }, | |||
2732 | { Hexagon::BI__builtin_circ_ldw, {{ 3, true, 4, 2 }} }, | |||
2733 | { Hexagon::BI__builtin_circ_ldh, {{ 3, true, 4, 1 }} }, | |||
2734 | { Hexagon::BI__builtin_circ_lduh, {{ 3, true, 4, 1 }} }, | |||
2735 | { Hexagon::BI__builtin_circ_ldb, {{ 3, true, 4, 0 }} }, | |||
2736 | { Hexagon::BI__builtin_circ_ldub, {{ 3, true, 4, 0 }} }, | |||
2737 | { Hexagon::BI__builtin_circ_std, {{ 3, true, 4, 3 }} }, | |||
2738 | { Hexagon::BI__builtin_circ_stw, {{ 3, true, 4, 2 }} }, | |||
2739 | { Hexagon::BI__builtin_circ_sth, {{ 3, true, 4, 1 }} }, | |||
2740 | { Hexagon::BI__builtin_circ_sthhi, {{ 3, true, 4, 1 }} }, | |||
2741 | { Hexagon::BI__builtin_circ_stb, {{ 3, true, 4, 0 }} }, | |||
2742 | ||||
2743 | { Hexagon::BI__builtin_HEXAGON_L2_loadrub_pci, {{ 1, true, 4, 0 }} }, | |||
2744 | { Hexagon::BI__builtin_HEXAGON_L2_loadrb_pci, {{ 1, true, 4, 0 }} }, | |||
2745 | { Hexagon::BI__builtin_HEXAGON_L2_loadruh_pci, {{ 1, true, 4, 1 }} }, | |||
2746 | { Hexagon::BI__builtin_HEXAGON_L2_loadrh_pci, {{ 1, true, 4, 1 }} }, | |||
2747 | { Hexagon::BI__builtin_HEXAGON_L2_loadri_pci, {{ 1, true, 4, 2 }} }, | |||
2748 | { Hexagon::BI__builtin_HEXAGON_L2_loadrd_pci, {{ 1, true, 4, 3 }} }, | |||
2749 | { Hexagon::BI__builtin_HEXAGON_S2_storerb_pci, {{ 1, true, 4, 0 }} }, | |||
2750 | { Hexagon::BI__builtin_HEXAGON_S2_storerh_pci, {{ 1, true, 4, 1 }} }, | |||
2751 | { Hexagon::BI__builtin_HEXAGON_S2_storerf_pci, {{ 1, true, 4, 1 }} }, | |||
2752 | { Hexagon::BI__builtin_HEXAGON_S2_storeri_pci, {{ 1, true, 4, 2 }} }, | |||
2753 | { Hexagon::BI__builtin_HEXAGON_S2_storerd_pci, {{ 1, true, 4, 3 }} }, | |||
2754 | ||||
2755 | { Hexagon::BI__builtin_HEXAGON_A2_combineii, {{ 1, true, 8, 0 }} }, | |||
2756 | { Hexagon::BI__builtin_HEXAGON_A2_tfrih, {{ 1, false, 16, 0 }} }, | |||
2757 | { Hexagon::BI__builtin_HEXAGON_A2_tfril, {{ 1, false, 16, 0 }} }, | |||
2758 | { Hexagon::BI__builtin_HEXAGON_A2_tfrpi, {{ 0, true, 8, 0 }} }, | |||
2759 | { Hexagon::BI__builtin_HEXAGON_A4_bitspliti, {{ 1, false, 5, 0 }} }, | |||
2760 | { Hexagon::BI__builtin_HEXAGON_A4_cmpbeqi, {{ 1, false, 8, 0 }} }, | |||
2761 | { Hexagon::BI__builtin_HEXAGON_A4_cmpbgti, {{ 1, true, 8, 0 }} }, | |||
2762 | { Hexagon::BI__builtin_HEXAGON_A4_cround_ri, {{ 1, false, 5, 0 }} }, | |||
2763 | { Hexagon::BI__builtin_HEXAGON_A4_round_ri, {{ 1, false, 5, 0 }} }, | |||
2764 | { Hexagon::BI__builtin_HEXAGON_A4_round_ri_sat, {{ 1, false, 5, 0 }} }, | |||
2765 | { Hexagon::BI__builtin_HEXAGON_A4_vcmpbeqi, {{ 1, false, 8, 0 }} }, | |||
2766 | { Hexagon::BI__builtin_HEXAGON_A4_vcmpbgti, {{ 1, true, 8, 0 }} }, | |||
2767 | { Hexagon::BI__builtin_HEXAGON_A4_vcmpbgtui, {{ 1, false, 7, 0 }} }, | |||
2768 | { Hexagon::BI__builtin_HEXAGON_A4_vcmpheqi, {{ 1, true, 8, 0 }} }, | |||
2769 | { Hexagon::BI__builtin_HEXAGON_A4_vcmphgti, {{ 1, true, 8, 0 }} }, | |||
2770 | { Hexagon::BI__builtin_HEXAGON_A4_vcmphgtui, {{ 1, false, 7, 0 }} }, | |||
2771 | { Hexagon::BI__builtin_HEXAGON_A4_vcmpweqi, {{ 1, true, 8, 0 }} }, | |||
2772 | { Hexagon::BI__builtin_HEXAGON_A4_vcmpwgti, {{ 1, true, 8, 0 }} }, | |||
2773 | { Hexagon::BI__builtin_HEXAGON_A4_vcmpwgtui, {{ 1, false, 7, 0 }} }, | |||
2774 | { Hexagon::BI__builtin_HEXAGON_C2_bitsclri, {{ 1, false, 6, 0 }} }, | |||
2775 | { Hexagon::BI__builtin_HEXAGON_C2_muxii, {{ 2, true, 8, 0 }} }, | |||
2776 | { Hexagon::BI__builtin_HEXAGON_C4_nbitsclri, {{ 1, false, 6, 0 }} }, | |||
2777 | { Hexagon::BI__builtin_HEXAGON_F2_dfclass, {{ 1, false, 5, 0 }} }, | |||
2778 | { Hexagon::BI__builtin_HEXAGON_F2_dfimm_n, {{ 0, false, 10, 0 }} }, | |||
2779 | { Hexagon::BI__builtin_HEXAGON_F2_dfimm_p, {{ 0, false, 10, 0 }} }, | |||
2780 | { Hexagon::BI__builtin_HEXAGON_F2_sfclass, {{ 1, false, 5, 0 }} }, | |||
2781 | { Hexagon::BI__builtin_HEXAGON_F2_sfimm_n, {{ 0, false, 10, 0 }} }, | |||
2782 | { Hexagon::BI__builtin_HEXAGON_F2_sfimm_p, {{ 0, false, 10, 0 }} }, | |||
2783 | { Hexagon::BI__builtin_HEXAGON_M4_mpyri_addi, {{ 2, false, 6, 0 }} }, | |||
2784 | { Hexagon::BI__builtin_HEXAGON_M4_mpyri_addr_u2, {{ 1, false, 6, 2 }} }, | |||
2785 | { Hexagon::BI__builtin_HEXAGON_S2_addasl_rrri, {{ 2, false, 3, 0 }} }, | |||
2786 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_acc, {{ 2, false, 6, 0 }} }, | |||
2787 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_and, {{ 2, false, 6, 0 }} }, | |||
2788 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p, {{ 1, false, 6, 0 }} }, | |||
2789 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_nac, {{ 2, false, 6, 0 }} }, | |||
2790 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_or, {{ 2, false, 6, 0 }} }, | |||
2791 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_xacc, {{ 2, false, 6, 0 }} }, | |||
2792 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_acc, {{ 2, false, 5, 0 }} }, | |||
2793 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_and, {{ 2, false, 5, 0 }} }, | |||
2794 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r, {{ 1, false, 5, 0 }} }, | |||
2795 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_nac, {{ 2, false, 5, 0 }} }, | |||
2796 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_or, {{ 2, false, 5, 0 }} }, | |||
2797 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_sat, {{ 1, false, 5, 0 }} }, | |||
2798 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_xacc, {{ 2, false, 5, 0 }} }, | |||
2799 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_vh, {{ 1, false, 4, 0 }} }, | |||
2800 | { Hexagon::BI__builtin_HEXAGON_S2_asl_i_vw, {{ 1, false, 5, 0 }} }, | |||
2801 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_acc, {{ 2, false, 6, 0 }} }, | |||
2802 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_and, {{ 2, false, 6, 0 }} }, | |||
2803 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p, {{ 1, false, 6, 0 }} }, | |||
2804 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_nac, {{ 2, false, 6, 0 }} }, | |||
2805 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_or, {{ 2, false, 6, 0 }} }, | |||
2806 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_rnd_goodsyntax, | |||
2807 | {{ 1, false, 6, 0 }} }, | |||
2808 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_rnd, {{ 1, false, 6, 0 }} }, | |||
2809 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_acc, {{ 2, false, 5, 0 }} }, | |||
2810 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_and, {{ 2, false, 5, 0 }} }, | |||
2811 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r, {{ 1, false, 5, 0 }} }, | |||
2812 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_nac, {{ 2, false, 5, 0 }} }, | |||
2813 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_or, {{ 2, false, 5, 0 }} }, | |||
2814 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_rnd_goodsyntax, | |||
2815 | {{ 1, false, 5, 0 }} }, | |||
2816 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_rnd, {{ 1, false, 5, 0 }} }, | |||
2817 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_svw_trun, {{ 1, false, 5, 0 }} }, | |||
2818 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_vh, {{ 1, false, 4, 0 }} }, | |||
2819 | { Hexagon::BI__builtin_HEXAGON_S2_asr_i_vw, {{ 1, false, 5, 0 }} }, | |||
2820 | { Hexagon::BI__builtin_HEXAGON_S2_clrbit_i, {{ 1, false, 5, 0 }} }, | |||
2821 | { Hexagon::BI__builtin_HEXAGON_S2_extractu, {{ 1, false, 5, 0 }, | |||
2822 | { 2, false, 5, 0 }} }, | |||
2823 | { Hexagon::BI__builtin_HEXAGON_S2_extractup, {{ 1, false, 6, 0 }, | |||
2824 | { 2, false, 6, 0 }} }, | |||
2825 | { Hexagon::BI__builtin_HEXAGON_S2_insert, {{ 2, false, 5, 0 }, | |||
2826 | { 3, false, 5, 0 }} }, | |||
2827 | { Hexagon::BI__builtin_HEXAGON_S2_insertp, {{ 2, false, 6, 0 }, | |||
2828 | { 3, false, 6, 0 }} }, | |||
2829 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_acc, {{ 2, false, 6, 0 }} }, | |||
2830 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_and, {{ 2, false, 6, 0 }} }, | |||
2831 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p, {{ 1, false, 6, 0 }} }, | |||
2832 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_nac, {{ 2, false, 6, 0 }} }, | |||
2833 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_or, {{ 2, false, 6, 0 }} }, | |||
2834 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_xacc, {{ 2, false, 6, 0 }} }, | |||
2835 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_acc, {{ 2, false, 5, 0 }} }, | |||
2836 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_and, {{ 2, false, 5, 0 }} }, | |||
2837 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r, {{ 1, false, 5, 0 }} }, | |||
2838 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_nac, {{ 2, false, 5, 0 }} }, | |||
2839 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_or, {{ 2, false, 5, 0 }} }, | |||
2840 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_xacc, {{ 2, false, 5, 0 }} }, | |||
2841 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_vh, {{ 1, false, 4, 0 }} }, | |||
2842 | { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_vw, {{ 1, false, 5, 0 }} }, | |||
2843 | { Hexagon::BI__builtin_HEXAGON_S2_setbit_i, {{ 1, false, 5, 0 }} }, | |||
2844 | { Hexagon::BI__builtin_HEXAGON_S2_tableidxb_goodsyntax, | |||
2845 | {{ 2, false, 4, 0 }, | |||
2846 | { 3, false, 5, 0 }} }, | |||
2847 | { Hexagon::BI__builtin_HEXAGON_S2_tableidxd_goodsyntax, | |||
2848 | {{ 2, false, 4, 0 }, | |||
2849 | { 3, false, 5, 0 }} }, | |||
2850 | { Hexagon::BI__builtin_HEXAGON_S2_tableidxh_goodsyntax, | |||
2851 | {{ 2, false, 4, 0 }, | |||
2852 | { 3, false, 5, 0 }} }, | |||
2853 | { Hexagon::BI__builtin_HEXAGON_S2_tableidxw_goodsyntax, | |||
2854 | {{ 2, false, 4, 0 }, | |||
2855 | { 3, false, 5, 0 }} }, | |||
2856 | { Hexagon::BI__builtin_HEXAGON_S2_togglebit_i, {{ 1, false, 5, 0 }} }, | |||
2857 | { Hexagon::BI__builtin_HEXAGON_S2_tstbit_i, {{ 1, false, 5, 0 }} }, | |||
2858 | { Hexagon::BI__builtin_HEXAGON_S2_valignib, {{ 2, false, 3, 0 }} }, | |||
2859 | { Hexagon::BI__builtin_HEXAGON_S2_vspliceib, {{ 2, false, 3, 0 }} }, | |||
2860 | { Hexagon::BI__builtin_HEXAGON_S4_addi_asl_ri, {{ 2, false, 5, 0 }} }, | |||
2861 | { Hexagon::BI__builtin_HEXAGON_S4_addi_lsr_ri, {{ 2, false, 5, 0 }} }, | |||
2862 | { Hexagon::BI__builtin_HEXAGON_S4_andi_asl_ri, {{ 2, false, 5, 0 }} }, | |||
2863 | { Hexagon::BI__builtin_HEXAGON_S4_andi_lsr_ri, {{ 2, false, 5, 0 }} }, | |||
2864 | { Hexagon::BI__builtin_HEXAGON_S4_clbaddi, {{ 1, true , 6, 0 }} }, | |||
2865 | { Hexagon::BI__builtin_HEXAGON_S4_clbpaddi, {{ 1, true, 6, 0 }} }, | |||
2866 | { Hexagon::BI__builtin_HEXAGON_S4_extract, {{ 1, false, 5, 0 }, | |||
2867 | { 2, false, 5, 0 }} }, | |||
2868 | { Hexagon::BI__builtin_HEXAGON_S4_extractp, {{ 1, false, 6, 0 }, | |||
2869 | { 2, false, 6, 0 }} }, | |||
2870 | { Hexagon::BI__builtin_HEXAGON_S4_lsli, {{ 0, true, 6, 0 }} }, | |||
2871 | { Hexagon::BI__builtin_HEXAGON_S4_ntstbit_i, {{ 1, false, 5, 0 }} }, | |||
2872 | { Hexagon::BI__builtin_HEXAGON_S4_ori_asl_ri, {{ 2, false, 5, 0 }} }, | |||
2873 | { Hexagon::BI__builtin_HEXAGON_S4_ori_lsr_ri, {{ 2, false, 5, 0 }} }, | |||
2874 | { Hexagon::BI__builtin_HEXAGON_S4_subi_asl_ri, {{ 2, false, 5, 0 }} }, | |||
2875 | { Hexagon::BI__builtin_HEXAGON_S4_subi_lsr_ri, {{ 2, false, 5, 0 }} }, | |||
2876 | { Hexagon::BI__builtin_HEXAGON_S4_vrcrotate_acc, {{ 3, false, 2, 0 }} }, | |||
2877 | { Hexagon::BI__builtin_HEXAGON_S4_vrcrotate, {{ 2, false, 2, 0 }} }, | |||
2878 | { Hexagon::BI__builtin_HEXAGON_S5_asrhub_rnd_sat_goodsyntax, | |||
2879 | {{ 1, false, 4, 0 }} }, | |||
2880 | { Hexagon::BI__builtin_HEXAGON_S5_asrhub_sat, {{ 1, false, 4, 0 }} }, | |||
2881 | { Hexagon::BI__builtin_HEXAGON_S5_vasrhrnd_goodsyntax, | |||
2882 | {{ 1, false, 4, 0 }} }, | |||
2883 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p, {{ 1, false, 6, 0 }} }, | |||
2884 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_acc, {{ 2, false, 6, 0 }} }, | |||
2885 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_and, {{ 2, false, 6, 0 }} }, | |||
2886 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_nac, {{ 2, false, 6, 0 }} }, | |||
2887 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_or, {{ 2, false, 6, 0 }} }, | |||
2888 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_xacc, {{ 2, false, 6, 0 }} }, | |||
2889 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r, {{ 1, false, 5, 0 }} }, | |||
2890 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_acc, {{ 2, false, 5, 0 }} }, | |||
2891 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_and, {{ 2, false, 5, 0 }} }, | |||
2892 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_nac, {{ 2, false, 5, 0 }} }, | |||
2893 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_or, {{ 2, false, 5, 0 }} }, | |||
2894 | { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_xacc, {{ 2, false, 5, 0 }} }, | |||
2895 | { Hexagon::BI__builtin_HEXAGON_V6_valignbi, {{ 2, false, 3, 0 }} }, | |||
2896 | { Hexagon::BI__builtin_HEXAGON_V6_valignbi_128B, {{ 2, false, 3, 0 }} }, | |||
2897 | { Hexagon::BI__builtin_HEXAGON_V6_vlalignbi, {{ 2, false, 3, 0 }} }, | |||
2898 | { Hexagon::BI__builtin_HEXAGON_V6_vlalignbi_128B, {{ 2, false, 3, 0 }} }, | |||
2899 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi, {{ 2, false, 1, 0 }} }, | |||
2900 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_128B, {{ 2, false, 1, 0 }} }, | |||
2901 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_acc, {{ 3, false, 1, 0 }} }, | |||
2902 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_acc_128B, | |||
2903 | {{ 3, false, 1, 0 }} }, | |||
2904 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi, {{ 2, false, 1, 0 }} }, | |||
2905 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_128B, {{ 2, false, 1, 0 }} }, | |||
2906 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_acc, {{ 3, false, 1, 0 }} }, | |||
2907 | { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_acc_128B, | |||
2908 | {{ 3, false, 1, 0 }} }, | |||
2909 | { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi, {{ 2, false, 1, 0 }} }, | |||
2910 | { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_128B, {{ 2, false, 1, 0 }} }, | |||
2911 | { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_acc, {{ 3, false, 1, 0 }} }, | |||
2912 | { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_acc_128B, | |||
2913 | {{ 3, false, 1, 0 }} }, | |||
2914 | }; | |||
2915 | ||||
2916 | // Use a dynamically initialized static to sort the table exactly once on | |||
2917 | // first run. | |||
2918 | static const bool SortOnce = | |||
2919 | (llvm::sort(Infos, | |||
2920 | [](const BuiltinInfo &LHS, const BuiltinInfo &RHS) { | |||
2921 | return LHS.BuiltinID < RHS.BuiltinID; | |||
2922 | }), | |||
2923 | true); | |||
2924 | (void)SortOnce; | |||
2925 | ||||
2926 | const BuiltinInfo *F = llvm::partition_point( | |||
2927 | Infos, [=](const BuiltinInfo &BI) { return BI.BuiltinID < BuiltinID; }); | |||
2928 | if (F == std::end(Infos) || F->BuiltinID != BuiltinID) | |||
2929 | return false; | |||
2930 | ||||
2931 | bool Error = false; | |||
2932 | ||||
2933 | for (const ArgInfo &A : F->Infos) { | |||
2934 | // Ignore empty ArgInfo elements. | |||
2935 | if (A.BitWidth == 0) | |||
2936 | continue; | |||
2937 | ||||
2938 | int32_t Min = A.IsSigned ? -(1 << (A.BitWidth - 1)) : 0; | |||
2939 | int32_t Max = (1 << (A.IsSigned ? A.BitWidth - 1 : A.BitWidth)) - 1; | |||
2940 | if (!A.Align) { | |||
2941 | Error |= SemaBuiltinConstantArgRange(TheCall, A.OpNum, Min, Max); | |||
2942 | } else { | |||
2943 | unsigned M = 1 << A.Align; | |||
2944 | Min *= M; | |||
2945 | Max *= M; | |||
2946 | Error |= SemaBuiltinConstantArgRange(TheCall, A.OpNum, Min, Max) | | |||
2947 | SemaBuiltinConstantArgMultiple(TheCall, A.OpNum, M); | |||
2948 | } | |||
2949 | } | |||
2950 | return Error; | |||
2951 | } | |||
2952 | ||||
2953 | bool Sema::CheckHexagonBuiltinFunctionCall(unsigned BuiltinID, | |||
2954 | CallExpr *TheCall) { | |||
2955 | return CheckHexagonBuiltinArgument(BuiltinID, TheCall); | |||
2956 | } | |||
2957 | ||||
2958 | bool Sema::CheckMipsBuiltinFunctionCall(const TargetInfo &TI, | |||
2959 | unsigned BuiltinID, CallExpr *TheCall) { | |||
2960 | return CheckMipsBuiltinCpu(TI, BuiltinID, TheCall) || | |||
2961 | CheckMipsBuiltinArgument(BuiltinID, TheCall); | |||
2962 | } | |||
2963 | ||||
2964 | bool Sema::CheckMipsBuiltinCpu(const TargetInfo &TI, unsigned BuiltinID, | |||
2965 | CallExpr *TheCall) { | |||
2966 | ||||
2967 | if (Mips::BI__builtin_mips_addu_qb <= BuiltinID && | |||
2968 | BuiltinID <= Mips::BI__builtin_mips_lwx) { | |||
2969 | if (!TI.hasFeature("dsp")) | |||
2970 | return Diag(TheCall->getBeginLoc(), diag::err_mips_builtin_requires_dsp); | |||
2971 | } | |||
2972 | ||||
2973 | if (Mips::BI__builtin_mips_absq_s_qb <= BuiltinID && | |||
2974 | BuiltinID <= Mips::BI__builtin_mips_subuh_r_qb) { | |||
2975 | if (!TI.hasFeature("dspr2")) | |||
2976 | return Diag(TheCall->getBeginLoc(), | |||
2977 | diag::err_mips_builtin_requires_dspr2); | |||
2978 | } | |||
2979 | ||||
2980 | if (Mips::BI__builtin_msa_add_a_b <= BuiltinID && | |||
2981 | BuiltinID <= Mips::BI__builtin_msa_xori_b) { | |||
2982 | if (!TI.hasFeature("msa")) | |||
2983 | return Diag(TheCall->getBeginLoc(), diag::err_mips_builtin_requires_msa); | |||
2984 | } | |||
2985 | ||||
2986 | return false; | |||
2987 | } | |||
2988 | ||||
2989 | // CheckMipsBuiltinArgument - Checks the constant value passed to the | |||
2990 | // intrinsic is correct. The switch statement is ordered by DSP, MSA. The | |||
2991 | // ordering for DSP is unspecified. MSA is ordered by the data format used | |||
2992 | // by the underlying instruction i.e., df/m, df/n and then by size. | |||
2993 | // | |||
2994 | // FIXME: The size tests here should instead be tablegen'd along with the | |||
2995 | // definitions from include/clang/Basic/BuiltinsMips.def. | |||
2996 | // FIXME: GCC is strict on signedness for some of these intrinsics, we should | |||
2997 | // be too. | |||
2998 | bool Sema::CheckMipsBuiltinArgument(unsigned BuiltinID, CallExpr *TheCall) { | |||
2999 | unsigned i = 0, l = 0, u = 0, m = 0; | |||
3000 | switch (BuiltinID) { | |||
3001 | default: return false; | |||
3002 | case Mips::BI__builtin_mips_wrdsp: i = 1; l = 0; u = 63; break; | |||
3003 | case Mips::BI__builtin_mips_rddsp: i = 0; l = 0; u = 63; break; | |||
3004 | case Mips::BI__builtin_mips_append: i = 2; l = 0; u = 31; break; | |||
3005 | case Mips::BI__builtin_mips_balign: i = 2; l = 0; u = 3; break; | |||
3006 | case Mips::BI__builtin_mips_precr_sra_ph_w: i = 2; l = 0; u = 31; break; | |||
3007 | case Mips::BI__builtin_mips_precr_sra_r_ph_w: i = 2; l = 0; u = 31; break; | |||
3008 | case Mips::BI__builtin_mips_prepend: i = 2; l = 0; u = 31; break; | |||
3009 | // MSA intrinsics. Instructions (which the intrinsics maps to) which use the | |||
3010 | // df/m field. | |||
3011 | // These intrinsics take an unsigned 3 bit immediate. | |||
3012 | case Mips::BI__builtin_msa_bclri_b: | |||
3013 | case Mips::BI__builtin_msa_bnegi_b: | |||
3014 | case Mips::BI__builtin_msa_bseti_b: | |||
3015 | case Mips::BI__builtin_msa_sat_s_b: | |||
3016 | case Mips::BI__builtin_msa_sat_u_b: | |||
3017 | case Mips::BI__builtin_msa_slli_b: | |||
3018 | case Mips::BI__builtin_msa_srai_b: | |||
3019 | case Mips::BI__builtin_msa_srari_b: | |||
3020 | case Mips::BI__builtin_msa_srli_b: | |||
3021 | case Mips::BI__builtin_msa_srlri_b: i = 1; l = 0; u = 7; break; | |||
3022 | case Mips::BI__builtin_msa_binsli_b: | |||
3023 | case Mips::BI__builtin_msa_binsri_b: i = 2; l = 0; u = 7; break; | |||
3024 | // These intrinsics take an unsigned 4 bit immediate. | |||
3025 | case Mips::BI__builtin_msa_bclri_h: | |||
3026 | case Mips::BI__builtin_msa_bnegi_h: | |||
3027 | case Mips::BI__builtin_msa_bseti_h: | |||
3028 | case Mips::BI__builtin_msa_sat_s_h: | |||
3029 | case Mips::BI__builtin_msa_sat_u_h: | |||
3030 | case Mips::BI__builtin_msa_slli_h: | |||
3031 | case Mips::BI__builtin_msa_srai_h: | |||
3032 | case Mips::BI__builtin_msa_srari_h: | |||
3033 | case Mips::BI__builtin_msa_srli_h: | |||
3034 | case Mips::BI__builtin_msa_srlri_h: i = 1; l = 0; u = 15; break; | |||
3035 | case Mips::BI__builtin_msa_binsli_h: | |||
3036 | case Mips::BI__builtin_msa_binsri_h: i = 2; l = 0; u = 15; break; | |||
3037 | // These intrinsics take an unsigned 5 bit immediate. | |||
3038 | // The first block of intrinsics actually have an unsigned 5 bit field, | |||
3039 | // not a df/n field. | |||
3040 | case Mips::BI__builtin_msa_cfcmsa: | |||
3041 | case Mips::BI__builtin_msa_ctcmsa: i = 0; l = 0; u = 31; break; | |||
3042 | case Mips::BI__builtin_msa_clei_u_b: | |||
3043 | case Mips::BI__builtin_msa_clei_u_h: | |||
3044 | case Mips::BI__builtin_msa_clei_u_w: | |||
3045 | case Mips::BI__builtin_msa_clei_u_d: | |||
3046 | case Mips::BI__builtin_msa_clti_u_b: | |||
3047 | case Mips::BI__builtin_msa_clti_u_h: | |||
3048 | case Mips::BI__builtin_msa_clti_u_w: | |||
3049 | case Mips::BI__builtin_msa_clti_u_d: | |||
3050 | case Mips::BI__builtin_msa_maxi_u_b: | |||
3051 | case Mips::BI__builtin_msa_maxi_u_h: | |||
3052 | case Mips::BI__builtin_msa_maxi_u_w: | |||
3053 | case Mips::BI__builtin_msa_maxi_u_d: | |||
3054 | case Mips::BI__builtin_msa_mini_u_b: | |||
3055 | case Mips::BI__builtin_msa_mini_u_h: | |||
3056 | case Mips::BI__builtin_msa_mini_u_w: | |||
3057 | case Mips::BI__builtin_msa_mini_u_d: | |||
3058 | case Mips::BI__builtin_msa_addvi_b: | |||
3059 | case Mips::BI__builtin_msa_addvi_h: | |||
3060 | case Mips::BI__builtin_msa_addvi_w: | |||
3061 | case Mips::BI__builtin_msa_addvi_d: | |||
3062 | case Mips::BI__builtin_msa_bclri_w: | |||
3063 | case Mips::BI__builtin_msa_bnegi_w: | |||
3064 | case Mips::BI__builtin_msa_bseti_w: | |||
3065 | case Mips::BI__builtin_msa_sat_s_w: | |||
3066 | case Mips::BI__builtin_msa_sat_u_w: | |||
3067 | case Mips::BI__builtin_msa_slli_w: | |||
3068 | case Mips::BI__builtin_msa_srai_w: | |||
3069 | case Mips::BI__builtin_msa_srari_w: | |||
3070 | case Mips::BI__builtin_msa_srli_w: | |||
3071 | case Mips::BI__builtin_msa_srlri_w: | |||
3072 | case Mips::BI__builtin_msa_subvi_b: | |||
3073 | case Mips::BI__builtin_msa_subvi_h: | |||
3074 | case Mips::BI__builtin_msa_subvi_w: | |||
3075 | case Mips::BI__builtin_msa_subvi_d: i = 1; l = 0; u = 31; break; | |||
3076 | case Mips::BI__builtin_msa_binsli_w: | |||
3077 | case Mips::BI__builtin_msa_binsri_w: i = 2; l = 0; u = 31; break; | |||
3078 | // These intrinsics take an unsigned 6 bit immediate. | |||
3079 | case Mips::BI__builtin_msa_bclri_d: | |||
3080 | case Mips::BI__builtin_msa_bnegi_d: | |||
3081 | case Mips::BI__builtin_msa_bseti_d: | |||
3082 | case Mips::BI__builtin_msa_sat_s_d: | |||
3083 | case Mips::BI__builtin_msa_sat_u_d: | |||
3084 | case Mips::BI__builtin_msa_slli_d: | |||
3085 | case Mips::BI__builtin_msa_srai_d: | |||
3086 | case Mips::BI__builtin_msa_srari_d: | |||
3087 | case Mips::BI__builtin_msa_srli_d: | |||
3088 | case Mips::BI__builtin_msa_srlri_d: i = 1; l = 0; u = 63; break; | |||
3089 | case Mips::BI__builtin_msa_binsli_d: | |||
3090 | case Mips::BI__builtin_msa_binsri_d: i = 2; l = 0; u = 63; break; | |||
3091 | // These intrinsics take a signed 5 bit immediate. | |||
3092 | case Mips::BI__builtin_msa_ceqi_b: | |||
3093 | case Mips::BI__builtin_msa_ceqi_h: | |||
3094 | case Mips::BI__builtin_msa_ceqi_w: | |||
3095 | case Mips::BI__builtin_msa_ceqi_d: | |||
3096 | case Mips::BI__builtin_msa_clti_s_b: | |||
3097 | case Mips::BI__builtin_msa_clti_s_h: | |||
3098 | case Mips::BI__builtin_msa_clti_s_w: | |||
3099 | case Mips::BI__builtin_msa_clti_s_d: | |||
3100 | case Mips::BI__builtin_msa_clei_s_b: | |||
3101 | case Mips::BI__builtin_msa_clei_s_h: | |||
3102 | case Mips::BI__builtin_msa_clei_s_w: | |||
3103 | case Mips::BI__builtin_msa_clei_s_d: | |||
3104 | case Mips::BI__builtin_msa_maxi_s_b: | |||
3105 | case Mips::BI__builtin_msa_maxi_s_h: | |||
3106 | case Mips::BI__builtin_msa_maxi_s_w: | |||
3107 | case Mips::BI__builtin_msa_maxi_s_d: | |||
3108 | case Mips::BI__builtin_msa_mini_s_b: | |||
3109 | case Mips::BI__builtin_msa_mini_s_h: | |||
3110 | case Mips::BI__builtin_msa_mini_s_w: | |||
3111 | case Mips::BI__builtin_msa_mini_s_d: i = 1; l = -16; u = 15; break; | |||
3112 | // These intrinsics take an unsigned 8 bit immediate. | |||
3113 | case Mips::BI__builtin_msa_andi_b: | |||
3114 | case Mips::BI__builtin_msa_nori_b: | |||
3115 | case Mips::BI__builtin_msa_ori_b: | |||
3116 | case Mips::BI__builtin_msa_shf_b: | |||
3117 | case Mips::BI__builtin_msa_shf_h: | |||
3118 | case Mips::BI__builtin_msa_shf_w: | |||
3119 | case Mips::BI__builtin_msa_xori_b: i = 1; l = 0; u = 255; break; | |||
3120 | case Mips::BI__builtin_msa_bseli_b: | |||
3121 | case Mips::BI__builtin_msa_bmnzi_b: | |||
3122 | case Mips::BI__builtin_msa_bmzi_b: i = 2; l = 0; u = 255; break; | |||
3123 | // df/n format | |||
3124 | // These intrinsics take an unsigned 4 bit immediate. | |||
3125 | case Mips::BI__builtin_msa_copy_s_b: | |||
3126 | case Mips::BI__builtin_msa_copy_u_b: | |||
3127 | case Mips::BI__builtin_msa_insve_b: | |||
3128 | case Mips::BI__builtin_msa_splati_b: i = 1; l = 0; u = 15; break; | |||
3129 | case Mips::BI__builtin_msa_sldi_b: i = 2; l = 0; u = 15; break; | |||
3130 | // These intrinsics take an unsigned 3 bit immediate. | |||
3131 | case Mips::BI__builtin_msa_copy_s_h: | |||
3132 | case Mips::BI__builtin_msa_copy_u_h: | |||
3133 | case Mips::BI__builtin_msa_insve_h: | |||
3134 | case Mips::BI__builtin_msa_splati_h: i = 1; l = 0; u = 7; break; | |||
3135 | case Mips::BI__builtin_msa_sldi_h: i = 2; l = 0; u = 7; break; | |||
3136 | // These intrinsics take an unsigned 2 bit immediate. | |||
3137 | case Mips::BI__builtin_msa_copy_s_w: | |||
3138 | case Mips::BI__builtin_msa_copy_u_w: | |||
3139 | case Mips::BI__builtin_msa_insve_w: | |||
3140 | case Mips::BI__builtin_msa_splati_w: i = 1; l = 0; u = 3; break; | |||
3141 | case Mips::BI__builtin_msa_sldi_w: i = 2; l = 0; u = 3; break; | |||
3142 | // These intrinsics take an unsigned 1 bit immediate. | |||
3143 | case Mips::BI__builtin_msa_copy_s_d: | |||
3144 | case Mips::BI__builtin_msa_copy_u_d: | |||
3145 | case Mips::BI__builtin_msa_insve_d: | |||
3146 | case Mips::BI__builtin_msa_splati_d: i = 1; l = 0; u = 1; break; | |||
3147 | case Mips::BI__builtin_msa_sldi_d: i = 2; l = 0; u = 1; break; | |||
3148 | // Memory offsets and immediate loads. | |||
3149 | // These intrinsics take a signed 10 bit immediate. | |||
3150 | case Mips::BI__builtin_msa_ldi_b: i = 0; l = -128; u = 255; break; | |||
3151 | case Mips::BI__builtin_msa_ldi_h: | |||
3152 | case Mips::BI__builtin_msa_ldi_w: | |||
3153 | case Mips::BI__builtin_msa_ldi_d: i = 0; l = -512; u = 511; break; | |||
3154 | case Mips::BI__builtin_msa_ld_b: i = 1; l = -512; u = 511; m = 1; break; | |||
3155 | case Mips::BI__builtin_msa_ld_h: i = 1; l = -1024; u = 1022; m = 2; break; | |||
3156 | case Mips::BI__builtin_msa_ld_w: i = 1; l = -2048; u = 2044; m = 4; break; | |||
3157 | case Mips::BI__builtin_msa_ld_d: i = 1; l = -4096; u = 4088; m = 8; break; | |||
3158 | case Mips::BI__builtin_msa_ldr_d: i = 1; l = -4096; u = 4088; m = 8; break; | |||
3159 | case Mips::BI__builtin_msa_ldr_w: i = 1; l = -2048; u = 2044; m = 4; break; | |||
3160 | case Mips::BI__builtin_msa_st_b: i = 2; l = -512; u = 511; m = 1; break; | |||
3161 | case Mips::BI__builtin_msa_st_h: i = 2; l = -1024; u = 1022; m = 2; break; | |||
3162 | case Mips::BI__builtin_msa_st_w: i = 2; l = -2048; u = 2044; m = 4; break; | |||
3163 | case Mips::BI__builtin_msa_st_d: i = 2; l = -4096; u = 4088; m = 8; break; | |||
3164 | case Mips::BI__builtin_msa_str_d: i = 2; l = -4096; u = 4088; m = 8; break; | |||
3165 | case Mips::BI__builtin_msa_str_w: i = 2; l = -2048; u = 2044; m = 4; break; | |||
3166 | } | |||
3167 | ||||
3168 | if (!m) | |||
3169 | return SemaBuiltinConstantArgRange(TheCall, i, l, u); | |||
3170 | ||||
3171 | return SemaBuiltinConstantArgRange(TheCall, i, l, u) || | |||
3172 | SemaBuiltinConstantArgMultiple(TheCall, i, m); | |||
3173 | } | |||
3174 | ||||
3175 | /// DecodePPCMMATypeFromStr - This decodes one PPC MMA type descriptor from Str, | |||
3176 | /// advancing the pointer over the consumed characters. The decoded type is | |||
3177 | /// returned. If the decoded type represents a constant integer with a | |||
3178 | /// constraint on its value then Mask is set to that value. The type descriptors | |||
3179 | /// used in Str are specific to PPC MMA builtins and are documented in the file | |||
3180 | /// defining the PPC builtins. | |||
3181 | static QualType DecodePPCMMATypeFromStr(ASTContext &Context, const char *&Str, | |||
3182 | unsigned &Mask) { | |||
3183 | bool RequireICE = false; | |||
3184 | ASTContext::GetBuiltinTypeError Error = ASTContext::GE_None; | |||
3185 | switch (*Str++) { | |||
3186 | case 'V': | |||
3187 | return Context.getVectorType(Context.UnsignedCharTy, 16, | |||
3188 | VectorType::VectorKind::AltiVecVector); | |||
3189 | case 'i': { | |||
3190 | char *End; | |||
3191 | unsigned size = strtoul(Str, &End, 10); | |||
3192 | assert(End != Str && "Missing constant parameter constraint")((End != Str && "Missing constant parameter constraint" ) ? static_cast<void> (0) : __assert_fail ("End != Str && \"Missing constant parameter constraint\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 3192, __PRETTY_FUNCTION__)); | |||
3193 | Str = End; | |||
3194 | Mask = size; | |||
3195 | return Context.IntTy; | |||
3196 | } | |||
3197 | case 'W': { | |||
3198 | char *End; | |||
3199 | unsigned size = strtoul(Str, &End, 10); | |||
3200 | assert(End != Str && "Missing PowerPC MMA type size")((End != Str && "Missing PowerPC MMA type size") ? static_cast <void> (0) : __assert_fail ("End != Str && \"Missing PowerPC MMA type size\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 3200, __PRETTY_FUNCTION__)); | |||
3201 | Str = End; | |||
3202 | QualType Type; | |||
3203 | switch (size) { | |||
3204 | #define PPC_VECTOR_TYPE(typeName, Id, size) \ | |||
3205 | case size: Type = Context.Id##Ty; break; | |||
3206 | #include "clang/Basic/PPCTypes.def" | |||
3207 | default: llvm_unreachable("Invalid PowerPC MMA vector type")::llvm::llvm_unreachable_internal("Invalid PowerPC MMA vector type" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 3207); | |||
3208 | } | |||
3209 | bool CheckVectorArgs = false; | |||
3210 | while (!CheckVectorArgs) { | |||
3211 | switch (*Str++) { | |||
3212 | case '*': | |||
3213 | Type = Context.getPointerType(Type); | |||
3214 | break; | |||
3215 | case 'C': | |||
3216 | Type = Type.withConst(); | |||
3217 | break; | |||
3218 | default: | |||
3219 | CheckVectorArgs = true; | |||
3220 | --Str; | |||
3221 | break; | |||
3222 | } | |||
3223 | } | |||
3224 | return Type; | |||
3225 | } | |||
3226 | default: | |||
3227 | return Context.DecodeTypeStr(--Str, Context, Error, RequireICE, true); | |||
3228 | } | |||
3229 | } | |||
3230 | ||||
3231 | bool Sema::CheckPPCBuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID, | |||
3232 | CallExpr *TheCall) { | |||
3233 | unsigned i = 0, l = 0, u = 0; | |||
3234 | bool Is64BitBltin = BuiltinID == PPC::BI__builtin_divde || | |||
3235 | BuiltinID == PPC::BI__builtin_divdeu || | |||
3236 | BuiltinID == PPC::BI__builtin_bpermd; | |||
3237 | bool IsTarget64Bit = TI.getTypeWidth(TI.getIntPtrType()) == 64; | |||
3238 | bool IsBltinExtDiv = BuiltinID == PPC::BI__builtin_divwe || | |||
3239 | BuiltinID == PPC::BI__builtin_divweu || | |||
3240 | BuiltinID == PPC::BI__builtin_divde || | |||
3241 | BuiltinID == PPC::BI__builtin_divdeu; | |||
3242 | ||||
3243 | if (Is64BitBltin && !IsTarget64Bit) | |||
3244 | return Diag(TheCall->getBeginLoc(), diag::err_64_bit_builtin_32_bit_tgt) | |||
3245 | << TheCall->getSourceRange(); | |||
3246 | ||||
3247 | if ((IsBltinExtDiv && !TI.hasFeature("extdiv")) || | |||
3248 | (BuiltinID == PPC::BI__builtin_bpermd && !TI.hasFeature("bpermd"))) | |||
3249 | return Diag(TheCall->getBeginLoc(), diag::err_ppc_builtin_only_on_pwr7) | |||
3250 | << TheCall->getSourceRange(); | |||
3251 | ||||
3252 | auto SemaVSXCheck = [&](CallExpr *TheCall) -> bool { | |||
3253 | if (!TI.hasFeature("vsx")) | |||
3254 | return Diag(TheCall->getBeginLoc(), diag::err_ppc_builtin_only_on_pwr7) | |||
3255 | << TheCall->getSourceRange(); | |||
3256 | return false; | |||
3257 | }; | |||
3258 | ||||
3259 | switch (BuiltinID) { | |||
3260 | default: return false; | |||
3261 | case PPC::BI__builtin_altivec_crypto_vshasigmaw: | |||
3262 | case PPC::BI__builtin_altivec_crypto_vshasigmad: | |||
3263 | return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1) || | |||
3264 | SemaBuiltinConstantArgRange(TheCall, 2, 0, 15); | |||
3265 | case PPC::BI__builtin_altivec_dss: | |||
3266 | return SemaBuiltinConstantArgRange(TheCall, 0, 0, 3); | |||
3267 | case PPC::BI__builtin_tbegin: | |||
3268 | case PPC::BI__builtin_tend: i = 0; l = 0; u = 1; break; | |||
3269 | case PPC::BI__builtin_tsr: i = 0; l = 0; u = 7; break; | |||
3270 | case PPC::BI__builtin_tabortwc: | |||
3271 | case PPC::BI__builtin_tabortdc: i = 0; l = 0; u = 31; break; | |||
3272 | case PPC::BI__builtin_tabortwci: | |||
3273 | case PPC::BI__builtin_tabortdci: | |||
3274 | return SemaBuiltinConstantArgRange(TheCall, 0, 0, 31) || | |||
3275 | SemaBuiltinConstantArgRange(TheCall, 2, 0, 31); | |||
3276 | case PPC::BI__builtin_altivec_dst: | |||
3277 | case PPC::BI__builtin_altivec_dstt: | |||
3278 | case PPC::BI__builtin_altivec_dstst: | |||
3279 | case PPC::BI__builtin_altivec_dststt: | |||
3280 | return SemaBuiltinConstantArgRange(TheCall, 2, 0, 3); | |||
3281 | case PPC::BI__builtin_vsx_xxpermdi: | |||
3282 | case PPC::BI__builtin_vsx_xxsldwi: | |||
3283 | return SemaBuiltinVSX(TheCall); | |||
3284 | case PPC::BI__builtin_unpack_vector_int128: | |||
3285 | return SemaVSXCheck(TheCall) || | |||
3286 | SemaBuiltinConstantArgRange(TheCall, 1, 0, 1); | |||
3287 | case PPC::BI__builtin_pack_vector_int128: | |||
3288 | return SemaVSXCheck(TheCall); | |||
3289 | case PPC::BI__builtin_altivec_vgnb: | |||
3290 | return SemaBuiltinConstantArgRange(TheCall, 1, 2, 7); | |||
3291 | case PPC::BI__builtin_altivec_vec_replace_elt: | |||
3292 | case PPC::BI__builtin_altivec_vec_replace_unaligned: { | |||
3293 | QualType VecTy = TheCall->getArg(0)->getType(); | |||
3294 | QualType EltTy = TheCall->getArg(1)->getType(); | |||
3295 | unsigned Width = Context.getIntWidth(EltTy); | |||
3296 | return SemaBuiltinConstantArgRange(TheCall, 2, 0, Width == 32 ? 12 : 8) || | |||
3297 | !isEltOfVectorTy(Context, TheCall, *this, VecTy, EltTy); | |||
3298 | } | |||
3299 | case PPC::BI__builtin_vsx_xxeval: | |||
3300 | return SemaBuiltinConstantArgRange(TheCall, 3, 0, 255); | |||
3301 | case PPC::BI__builtin_altivec_vsldbi: | |||
3302 | return SemaBuiltinConstantArgRange(TheCall, 2, 0, 7); | |||
3303 | case PPC::BI__builtin_altivec_vsrdbi: | |||
3304 | return SemaBuiltinConstantArgRange(TheCall, 2, 0, 7); | |||
3305 | case PPC::BI__builtin_vsx_xxpermx: | |||
3306 | return SemaBuiltinConstantArgRange(TheCall, 3, 0, 7); | |||
3307 | #define CUSTOM_BUILTIN(Name, Types, Acc) \ | |||
3308 | case PPC::BI__builtin_##Name: \ | |||
3309 | return SemaBuiltinPPCMMACall(TheCall, Types); | |||
3310 | #include "clang/Basic/BuiltinsPPC.def" | |||
3311 | } | |||
3312 | return SemaBuiltinConstantArgRange(TheCall, i, l, u); | |||
3313 | } | |||
3314 | ||||
3315 | // Check if the given type is a non-pointer PPC MMA type. This function is used | |||
3316 | // in Sema to prevent invalid uses of restricted PPC MMA types. | |||
3317 | bool Sema::CheckPPCMMAType(QualType Type, SourceLocation TypeLoc) { | |||
3318 | if (Type->isPointerType() || Type->isArrayType()) | |||
3319 | return false; | |||
3320 | ||||
3321 | QualType CoreType = Type.getCanonicalType().getUnqualifiedType(); | |||
3322 | #define PPC_VECTOR_TYPE(Name, Id, Size) || CoreType == Context.Id##Ty | |||
3323 | if (false | |||
3324 | #include "clang/Basic/PPCTypes.def" | |||
3325 | ) { | |||
3326 | Diag(TypeLoc, diag::err_ppc_invalid_use_mma_type); | |||
3327 | return true; | |||
3328 | } | |||
3329 | return false; | |||
3330 | } | |||
3331 | ||||
3332 | bool Sema::CheckAMDGCNBuiltinFunctionCall(unsigned BuiltinID, | |||
3333 | CallExpr *TheCall) { | |||
3334 | // position of memory order and scope arguments in the builtin | |||
3335 | unsigned OrderIndex, ScopeIndex; | |||
3336 | switch (BuiltinID) { | |||
3337 | case AMDGPU::BI__builtin_amdgcn_atomic_inc32: | |||
3338 | case AMDGPU::BI__builtin_amdgcn_atomic_inc64: | |||
3339 | case AMDGPU::BI__builtin_amdgcn_atomic_dec32: | |||
3340 | case AMDGPU::BI__builtin_amdgcn_atomic_dec64: | |||
3341 | OrderIndex = 2; | |||
3342 | ScopeIndex = 3; | |||
3343 | break; | |||
3344 | case AMDGPU::BI__builtin_amdgcn_fence: | |||
3345 | OrderIndex = 0; | |||
3346 | ScopeIndex = 1; | |||
3347 | break; | |||
3348 | default: | |||
3349 | return false; | |||
3350 | } | |||
3351 | ||||
3352 | ExprResult Arg = TheCall->getArg(OrderIndex); | |||
3353 | auto ArgExpr = Arg.get(); | |||
3354 | Expr::EvalResult ArgResult; | |||
3355 | ||||
3356 | if (!ArgExpr->EvaluateAsInt(ArgResult, Context)) | |||
3357 | return Diag(ArgExpr->getExprLoc(), diag::err_typecheck_expect_int) | |||
3358 | << ArgExpr->getType(); | |||
3359 | int ord = ArgResult.Val.getInt().getZExtValue(); | |||
3360 | ||||
3361 | // Check valididty of memory ordering as per C11 / C++11's memody model. | |||
3362 | switch (static_cast<llvm::AtomicOrderingCABI>(ord)) { | |||
3363 | case llvm::AtomicOrderingCABI::acquire: | |||
3364 | case llvm::AtomicOrderingCABI::release: | |||
3365 | case llvm::AtomicOrderingCABI::acq_rel: | |||
3366 | case llvm::AtomicOrderingCABI::seq_cst: | |||
3367 | break; | |||
3368 | default: { | |||
3369 | return Diag(ArgExpr->getBeginLoc(), | |||
3370 | diag::warn_atomic_op_has_invalid_memory_order) | |||
3371 | << ArgExpr->getSourceRange(); | |||
3372 | } | |||
3373 | } | |||
3374 | ||||
3375 | Arg = TheCall->getArg(ScopeIndex); | |||
3376 | ArgExpr = Arg.get(); | |||
3377 | Expr::EvalResult ArgResult1; | |||
3378 | // Check that sync scope is a constant literal | |||
3379 | if (!ArgExpr->EvaluateAsConstantExpr(ArgResult1, Context)) | |||
3380 | return Diag(ArgExpr->getExprLoc(), diag::err_expr_not_string_literal) | |||
3381 | << ArgExpr->getType(); | |||
3382 | ||||
3383 | return false; | |||
3384 | } | |||
3385 | ||||
3386 | bool Sema::CheckSystemZBuiltinFunctionCall(unsigned BuiltinID, | |||
3387 | CallExpr *TheCall) { | |||
3388 | if (BuiltinID == SystemZ::BI__builtin_tabort) { | |||
3389 | Expr *Arg = TheCall->getArg(0); | |||
3390 | if (Optional<llvm::APSInt> AbortCode = Arg->getIntegerConstantExpr(Context)) | |||
3391 | if (AbortCode->getSExtValue() >= 0 && AbortCode->getSExtValue() < 256) | |||
3392 | return Diag(Arg->getBeginLoc(), diag::err_systemz_invalid_tabort_code) | |||
3393 | << Arg->getSourceRange(); | |||
3394 | } | |||
3395 | ||||
3396 | // For intrinsics which take an immediate value as part of the instruction, | |||
3397 | // range check them here. | |||
3398 | unsigned i = 0, l = 0, u = 0; | |||
3399 | switch (BuiltinID) { | |||
3400 | default: return false; | |||
3401 | case SystemZ::BI__builtin_s390_lcbb: i = 1; l = 0; u = 15; break; | |||
3402 | case SystemZ::BI__builtin_s390_verimb: | |||
3403 | case SystemZ::BI__builtin_s390_verimh: | |||
3404 | case SystemZ::BI__builtin_s390_verimf: | |||
3405 | case SystemZ::BI__builtin_s390_verimg: i = 3; l = 0; u = 255; break; | |||
3406 | case SystemZ::BI__builtin_s390_vfaeb: | |||
3407 | case SystemZ::BI__builtin_s390_vfaeh: | |||
3408 | case SystemZ::BI__builtin_s390_vfaef: | |||
3409 | case SystemZ::BI__builtin_s390_vfaebs: | |||
3410 | case SystemZ::BI__builtin_s390_vfaehs: | |||
3411 | case SystemZ::BI__builtin_s390_vfaefs: | |||
3412 | case SystemZ::BI__builtin_s390_vfaezb: | |||
3413 | case SystemZ::BI__builtin_s390_vfaezh: | |||
3414 | case SystemZ::BI__builtin_s390_vfaezf: | |||
3415 | case SystemZ::BI__builtin_s390_vfaezbs: | |||
3416 | case SystemZ::BI__builtin_s390_vfaezhs: | |||
3417 | case SystemZ::BI__builtin_s390_vfaezfs: i = 2; l = 0; u = 15; break; | |||
3418 | case SystemZ::BI__builtin_s390_vfisb: | |||
3419 | case SystemZ::BI__builtin_s390_vfidb: | |||
3420 | return SemaBuiltinConstantArgRange(TheCall, 1, 0, 15) || | |||
3421 | SemaBuiltinConstantArgRange(TheCall, 2, 0, 15); | |||
3422 | case SystemZ::BI__builtin_s390_vftcisb: | |||
3423 | case SystemZ::BI__builtin_s390_vftcidb: i = 1; l = 0; u = 4095; break; | |||
3424 | case SystemZ::BI__builtin_s390_vlbb: i = 1; l = 0; u = 15; break; | |||
3425 | case SystemZ::BI__builtin_s390_vpdi: i = 2; l = 0; u = 15; break; | |||
3426 | case SystemZ::BI__builtin_s390_vsldb: i = 2; l = 0; u = 15; break; | |||
3427 | case SystemZ::BI__builtin_s390_vstrcb: | |||
3428 | case SystemZ::BI__builtin_s390_vstrch: | |||
3429 | case SystemZ::BI__builtin_s390_vstrcf: | |||
3430 | case SystemZ::BI__builtin_s390_vstrczb: | |||
3431 | case SystemZ::BI__builtin_s390_vstrczh: | |||
3432 | case SystemZ::BI__builtin_s390_vstrczf: | |||
3433 | case SystemZ::BI__builtin_s390_vstrcbs: | |||
3434 | case SystemZ::BI__builtin_s390_vstrchs: | |||
3435 | case SystemZ::BI__builtin_s390_vstrcfs: | |||
3436 | case SystemZ::BI__builtin_s390_vstrczbs: | |||
3437 | case SystemZ::BI__builtin_s390_vstrczhs: | |||
3438 | case SystemZ::BI__builtin_s390_vstrczfs: i = 3; l = 0; u = 15; break; | |||
3439 | case SystemZ::BI__builtin_s390_vmslg: i = 3; l = 0; u = 15; break; | |||
3440 | case SystemZ::BI__builtin_s390_vfminsb: | |||
3441 | case SystemZ::BI__builtin_s390_vfmaxsb: | |||
3442 | case SystemZ::BI__builtin_s390_vfmindb: | |||
3443 | case SystemZ::BI__builtin_s390_vfmaxdb: i = 2; l = 0; u = 15; break; | |||
3444 | case SystemZ::BI__builtin_s390_vsld: i = 2; l = 0; u = 7; break; | |||
3445 | case SystemZ::BI__builtin_s390_vsrd: i = 2; l = 0; u = 7; break; | |||
3446 | } | |||
3447 | return SemaBuiltinConstantArgRange(TheCall, i, l, u); | |||
3448 | } | |||
3449 | ||||
3450 | /// SemaBuiltinCpuSupports - Handle __builtin_cpu_supports(char *). | |||
3451 | /// This checks that the target supports __builtin_cpu_supports and | |||
3452 | /// that the string argument is constant and valid. | |||
3453 | static bool SemaBuiltinCpuSupports(Sema &S, const TargetInfo &TI, | |||
3454 | CallExpr *TheCall) { | |||
3455 | Expr *Arg = TheCall->getArg(0); | |||
3456 | ||||
3457 | // Check if the argument is a string literal. | |||
3458 | if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts())) | |||
3459 | return S.Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal) | |||
3460 | << Arg->getSourceRange(); | |||
3461 | ||||
3462 | // Check the contents of the string. | |||
3463 | StringRef Feature = | |||
3464 | cast<StringLiteral>(Arg->IgnoreParenImpCasts())->getString(); | |||
3465 | if (!TI.validateCpuSupports(Feature)) | |||
3466 | return S.Diag(TheCall->getBeginLoc(), diag::err_invalid_cpu_supports) | |||
3467 | << Arg->getSourceRange(); | |||
3468 | return false; | |||
3469 | } | |||
3470 | ||||
3471 | /// SemaBuiltinCpuIs - Handle __builtin_cpu_is(char *). | |||
3472 | /// This checks that the target supports __builtin_cpu_is and | |||
3473 | /// that the string argument is constant and valid. | |||
3474 | static bool SemaBuiltinCpuIs(Sema &S, const TargetInfo &TI, CallExpr *TheCall) { | |||
3475 | Expr *Arg = TheCall->getArg(0); | |||
3476 | ||||
3477 | // Check if the argument is a string literal. | |||
3478 | if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts())) | |||
3479 | return S.Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal) | |||
3480 | << Arg->getSourceRange(); | |||
3481 | ||||
3482 | // Check the contents of the string. | |||
3483 | StringRef Feature = | |||
3484 | cast<StringLiteral>(Arg->IgnoreParenImpCasts())->getString(); | |||
3485 | if (!TI.validateCpuIs(Feature)) | |||
3486 | return S.Diag(TheCall->getBeginLoc(), diag::err_invalid_cpu_is) | |||
3487 | << Arg->getSourceRange(); | |||
3488 | return false; | |||
3489 | } | |||
3490 | ||||
3491 | // Check if the rounding mode is legal. | |||
3492 | bool Sema::CheckX86BuiltinRoundingOrSAE(unsigned BuiltinID, CallExpr *TheCall) { | |||
3493 | // Indicates if this instruction has rounding control or just SAE. | |||
3494 | bool HasRC = false; | |||
3495 | ||||
3496 | unsigned ArgNum = 0; | |||
3497 | switch (BuiltinID) { | |||
3498 | default: | |||
3499 | return false; | |||
3500 | case X86::BI__builtin_ia32_vcvttsd2si32: | |||
3501 | case X86::BI__builtin_ia32_vcvttsd2si64: | |||
3502 | case X86::BI__builtin_ia32_vcvttsd2usi32: | |||
3503 | case X86::BI__builtin_ia32_vcvttsd2usi64: | |||
3504 | case X86::BI__builtin_ia32_vcvttss2si32: | |||
3505 | case X86::BI__builtin_ia32_vcvttss2si64: | |||
3506 | case X86::BI__builtin_ia32_vcvttss2usi32: | |||
3507 | case X86::BI__builtin_ia32_vcvttss2usi64: | |||
3508 | ArgNum = 1; | |||
3509 | break; | |||
3510 | case X86::BI__builtin_ia32_maxpd512: | |||
3511 | case X86::BI__builtin_ia32_maxps512: | |||
3512 | case X86::BI__builtin_ia32_minpd512: | |||
3513 | case X86::BI__builtin_ia32_minps512: | |||
3514 | ArgNum = 2; | |||
3515 | break; | |||
3516 | case X86::BI__builtin_ia32_cvtps2pd512_mask: | |||
3517 | case X86::BI__builtin_ia32_cvttpd2dq512_mask: | |||
3518 | case X86::BI__builtin_ia32_cvttpd2qq512_mask: | |||
3519 | case X86::BI__builtin_ia32_cvttpd2udq512_mask: | |||
3520 | case X86::BI__builtin_ia32_cvttpd2uqq512_mask: | |||
3521 | case X86::BI__builtin_ia32_cvttps2dq512_mask: | |||
3522 | case X86::BI__builtin_ia32_cvttps2qq512_mask: | |||
3523 | case X86::BI__builtin_ia32_cvttps2udq512_mask: | |||
3524 | case X86::BI__builtin_ia32_cvttps2uqq512_mask: | |||
3525 | case X86::BI__builtin_ia32_exp2pd_mask: | |||
3526 | case X86::BI__builtin_ia32_exp2ps_mask: | |||
3527 | case X86::BI__builtin_ia32_getexppd512_mask: | |||
3528 | case X86::BI__builtin_ia32_getexpps512_mask: | |||
3529 | case X86::BI__builtin_ia32_rcp28pd_mask: | |||
3530 | case X86::BI__builtin_ia32_rcp28ps_mask: | |||
3531 | case X86::BI__builtin_ia32_rsqrt28pd_mask: | |||
3532 | case X86::BI__builtin_ia32_rsqrt28ps_mask: | |||
3533 | case X86::BI__builtin_ia32_vcomisd: | |||
3534 | case X86::BI__builtin_ia32_vcomiss: | |||
3535 | case X86::BI__builtin_ia32_vcvtph2ps512_mask: | |||
3536 | ArgNum = 3; | |||
3537 | break; | |||
3538 | case X86::BI__builtin_ia32_cmppd512_mask: | |||
3539 | case X86::BI__builtin_ia32_cmpps512_mask: | |||
3540 | case X86::BI__builtin_ia32_cmpsd_mask: | |||
3541 | case X86::BI__builtin_ia32_cmpss_mask: | |||
3542 | case X86::BI__builtin_ia32_cvtss2sd_round_mask: | |||
3543 | case X86::BI__builtin_ia32_getexpsd128_round_mask: | |||
3544 | case X86::BI__builtin_ia32_getexpss128_round_mask: | |||
3545 | case X86::BI__builtin_ia32_getmantpd512_mask: | |||
3546 | case X86::BI__builtin_ia32_getmantps512_mask: | |||
3547 | case X86::BI__builtin_ia32_maxsd_round_mask: | |||
3548 | case X86::BI__builtin_ia32_maxss_round_mask: | |||
3549 | case X86::BI__builtin_ia32_minsd_round_mask: | |||
3550 | case X86::BI__builtin_ia32_minss_round_mask: | |||
3551 | case X86::BI__builtin_ia32_rcp28sd_round_mask: | |||
3552 | case X86::BI__builtin_ia32_rcp28ss_round_mask: | |||
3553 | case X86::BI__builtin_ia32_reducepd512_mask: | |||
3554 | case X86::BI__builtin_ia32_reduceps512_mask: | |||
3555 | case X86::BI__builtin_ia32_rndscalepd_mask: | |||
3556 | case X86::BI__builtin_ia32_rndscaleps_mask: | |||
3557 | case X86::BI__builtin_ia32_rsqrt28sd_round_mask: | |||
3558 | case X86::BI__builtin_ia32_rsqrt28ss_round_mask: | |||
3559 | ArgNum = 4; | |||
3560 | break; | |||
3561 | case X86::BI__builtin_ia32_fixupimmpd512_mask: | |||
3562 | case X86::BI__builtin_ia32_fixupimmpd512_maskz: | |||
3563 | case X86::BI__builtin_ia32_fixupimmps512_mask: | |||
3564 | case X86::BI__builtin_ia32_fixupimmps512_maskz: | |||
3565 | case X86::BI__builtin_ia32_fixupimmsd_mask: | |||
3566 | case X86::BI__builtin_ia32_fixupimmsd_maskz: | |||
3567 | case X86::BI__builtin_ia32_fixupimmss_mask: | |||
3568 | case X86::BI__builtin_ia32_fixupimmss_maskz: | |||
3569 | case X86::BI__builtin_ia32_getmantsd_round_mask: | |||
3570 | case X86::BI__builtin_ia32_getmantss_round_mask: | |||
3571 | case X86::BI__builtin_ia32_rangepd512_mask: | |||
3572 | case X86::BI__builtin_ia32_rangeps512_mask: | |||
3573 | case X86::BI__builtin_ia32_rangesd128_round_mask: | |||
3574 | case X86::BI__builtin_ia32_rangess128_round_mask: | |||
3575 | case X86::BI__builtin_ia32_reducesd_mask: | |||
3576 | case X86::BI__builtin_ia32_reducess_mask: | |||
3577 | case X86::BI__builtin_ia32_rndscalesd_round_mask: | |||
3578 | case X86::BI__builtin_ia32_rndscaless_round_mask: | |||
3579 | ArgNum = 5; | |||
3580 | break; | |||
3581 | case X86::BI__builtin_ia32_vcvtsd2si64: | |||
3582 | case X86::BI__builtin_ia32_vcvtsd2si32: | |||
3583 | case X86::BI__builtin_ia32_vcvtsd2usi32: | |||
3584 | case X86::BI__builtin_ia32_vcvtsd2usi64: | |||
3585 | case X86::BI__builtin_ia32_vcvtss2si32: | |||
3586 | case X86::BI__builtin_ia32_vcvtss2si64: | |||
3587 | case X86::BI__builtin_ia32_vcvtss2usi32: | |||
3588 | case X86::BI__builtin_ia32_vcvtss2usi64: | |||
3589 | case X86::BI__builtin_ia32_sqrtpd512: | |||
3590 | case X86::BI__builtin_ia32_sqrtps512: | |||
3591 | ArgNum = 1; | |||
3592 | HasRC = true; | |||
3593 | break; | |||
3594 | case X86::BI__builtin_ia32_addpd512: | |||
3595 | case X86::BI__builtin_ia32_addps512: | |||
3596 | case X86::BI__builtin_ia32_divpd512: | |||
3597 | case X86::BI__builtin_ia32_divps512: | |||
3598 | case X86::BI__builtin_ia32_mulpd512: | |||
3599 | case X86::BI__builtin_ia32_mulps512: | |||
3600 | case X86::BI__builtin_ia32_subpd512: | |||
3601 | case X86::BI__builtin_ia32_subps512: | |||
3602 | case X86::BI__builtin_ia32_cvtsi2sd64: | |||
3603 | case X86::BI__builtin_ia32_cvtsi2ss32: | |||
3604 | case X86::BI__builtin_ia32_cvtsi2ss64: | |||
3605 | case X86::BI__builtin_ia32_cvtusi2sd64: | |||
3606 | case X86::BI__builtin_ia32_cvtusi2ss32: | |||
3607 | case X86::BI__builtin_ia32_cvtusi2ss64: | |||
3608 | ArgNum = 2; | |||
3609 | HasRC = true; | |||
3610 | break; | |||
3611 | case X86::BI__builtin_ia32_cvtdq2ps512_mask: | |||
3612 | case X86::BI__builtin_ia32_cvtudq2ps512_mask: | |||
3613 | case X86::BI__builtin_ia32_cvtpd2ps512_mask: | |||
3614 | case X86::BI__builtin_ia32_cvtpd2dq512_mask: | |||
3615 | case X86::BI__builtin_ia32_cvtpd2qq512_mask: | |||
3616 | case X86::BI__builtin_ia32_cvtpd2udq512_mask: | |||
3617 | case X86::BI__builtin_ia32_cvtpd2uqq512_mask: | |||
3618 | case X86::BI__builtin_ia32_cvtps2dq512_mask: | |||
3619 | case X86::BI__builtin_ia32_cvtps2qq512_mask: | |||
3620 | case X86::BI__builtin_ia32_cvtps2udq512_mask: | |||
3621 | case X86::BI__builtin_ia32_cvtps2uqq512_mask: | |||
3622 | case X86::BI__builtin_ia32_cvtqq2pd512_mask: | |||
3623 | case X86::BI__builtin_ia32_cvtqq2ps512_mask: | |||
3624 | case X86::BI__builtin_ia32_cvtuqq2pd512_mask: | |||
3625 | case X86::BI__builtin_ia32_cvtuqq2ps512_mask: | |||
3626 | ArgNum = 3; | |||
3627 | HasRC = true; | |||
3628 | break; | |||
3629 | case X86::BI__builtin_ia32_addss_round_mask: | |||
3630 | case X86::BI__builtin_ia32_addsd_round_mask: | |||
3631 | case X86::BI__builtin_ia32_divss_round_mask: | |||
3632 | case X86::BI__builtin_ia32_divsd_round_mask: | |||
3633 | case X86::BI__builtin_ia32_mulss_round_mask: | |||
3634 | case X86::BI__builtin_ia32_mulsd_round_mask: | |||
3635 | case X86::BI__builtin_ia32_subss_round_mask: | |||
3636 | case X86::BI__builtin_ia32_subsd_round_mask: | |||
3637 | case X86::BI__builtin_ia32_scalefpd512_mask: | |||
3638 | case X86::BI__builtin_ia32_scalefps512_mask: | |||
3639 | case X86::BI__builtin_ia32_scalefsd_round_mask: | |||
3640 | case X86::BI__builtin_ia32_scalefss_round_mask: | |||
3641 | case X86::BI__builtin_ia32_cvtsd2ss_round_mask: | |||
3642 | case X86::BI__builtin_ia32_sqrtsd_round_mask: | |||
3643 | case X86::BI__builtin_ia32_sqrtss_round_mask: | |||
3644 | case X86::BI__builtin_ia32_vfmaddsd3_mask: | |||
3645 | case X86::BI__builtin_ia32_vfmaddsd3_maskz: | |||
3646 | case X86::BI__builtin_ia32_vfmaddsd3_mask3: | |||
3647 | case X86::BI__builtin_ia32_vfmaddss3_mask: | |||
3648 | case X86::BI__builtin_ia32_vfmaddss3_maskz: | |||
3649 | case X86::BI__builtin_ia32_vfmaddss3_mask3: | |||
3650 | case X86::BI__builtin_ia32_vfmaddpd512_mask: | |||
3651 | case X86::BI__builtin_ia32_vfmaddpd512_maskz: | |||
3652 | case X86::BI__builtin_ia32_vfmaddpd512_mask3: | |||
3653 | case X86::BI__builtin_ia32_vfmsubpd512_mask3: | |||
3654 | case X86::BI__builtin_ia32_vfmaddps512_mask: | |||
3655 | case X86::BI__builtin_ia32_vfmaddps512_maskz: | |||
3656 | case X86::BI__builtin_ia32_vfmaddps512_mask3: | |||
3657 | case X86::BI__builtin_ia32_vfmsubps512_mask3: | |||
3658 | case X86::BI__builtin_ia32_vfmaddsubpd512_mask: | |||
3659 | case X86::BI__builtin_ia32_vfmaddsubpd512_maskz: | |||
3660 | case X86::BI__builtin_ia32_vfmaddsubpd512_mask3: | |||
3661 | case X86::BI__builtin_ia32_vfmsubaddpd512_mask3: | |||
3662 | case X86::BI__builtin_ia32_vfmaddsubps512_mask: | |||
3663 | case X86::BI__builtin_ia32_vfmaddsubps512_maskz: | |||
3664 | case X86::BI__builtin_ia32_vfmaddsubps512_mask3: | |||
3665 | case X86::BI__builtin_ia32_vfmsubaddps512_mask3: | |||
3666 | ArgNum = 4; | |||
3667 | HasRC = true; | |||
3668 | break; | |||
3669 | } | |||
3670 | ||||
3671 | llvm::APSInt Result; | |||
3672 | ||||
3673 | // We can't check the value of a dependent argument. | |||
3674 | Expr *Arg = TheCall->getArg(ArgNum); | |||
3675 | if (Arg->isTypeDependent() || Arg->isValueDependent()) | |||
3676 | return false; | |||
3677 | ||||
3678 | // Check constant-ness first. | |||
3679 | if (SemaBuiltinConstantArg(TheCall, ArgNum, Result)) | |||
3680 | return true; | |||
3681 | ||||
3682 | // Make sure rounding mode is either ROUND_CUR_DIRECTION or ROUND_NO_EXC bit | |||
3683 | // is set. If the intrinsic has rounding control(bits 1:0), make sure its only | |||
3684 | // combined with ROUND_NO_EXC. If the intrinsic does not have rounding | |||
3685 | // control, allow ROUND_NO_EXC and ROUND_CUR_DIRECTION together. | |||
3686 | if (Result == 4/*ROUND_CUR_DIRECTION*/ || | |||
3687 | Result == 8/*ROUND_NO_EXC*/ || | |||
3688 | (!HasRC && Result == 12/*ROUND_CUR_DIRECTION|ROUND_NO_EXC*/) || | |||
3689 | (HasRC && Result.getZExtValue() >= 8 && Result.getZExtValue() <= 11)) | |||
3690 | return false; | |||
3691 | ||||
3692 | return Diag(TheCall->getBeginLoc(), diag::err_x86_builtin_invalid_rounding) | |||
3693 | << Arg->getSourceRange(); | |||
3694 | } | |||
3695 | ||||
3696 | // Check if the gather/scatter scale is legal. | |||
3697 | bool Sema::CheckX86BuiltinGatherScatterScale(unsigned BuiltinID, | |||
3698 | CallExpr *TheCall) { | |||
3699 | unsigned ArgNum = 0; | |||
3700 | switch (BuiltinID) { | |||
3701 | default: | |||
3702 | return false; | |||
3703 | case X86::BI__builtin_ia32_gatherpfdpd: | |||
3704 | case X86::BI__builtin_ia32_gatherpfdps: | |||
3705 | case X86::BI__builtin_ia32_gatherpfqpd: | |||
3706 | case X86::BI__builtin_ia32_gatherpfqps: | |||
3707 | case X86::BI__builtin_ia32_scatterpfdpd: | |||
3708 | case X86::BI__builtin_ia32_scatterpfdps: | |||
3709 | case X86::BI__builtin_ia32_scatterpfqpd: | |||
3710 | case X86::BI__builtin_ia32_scatterpfqps: | |||
3711 | ArgNum = 3; | |||
3712 | break; | |||
3713 | case X86::BI__builtin_ia32_gatherd_pd: | |||
3714 | case X86::BI__builtin_ia32_gatherd_pd256: | |||
3715 | case X86::BI__builtin_ia32_gatherq_pd: | |||
3716 | case X86::BI__builtin_ia32_gatherq_pd256: | |||
3717 | case X86::BI__builtin_ia32_gatherd_ps: | |||
3718 | case X86::BI__builtin_ia32_gatherd_ps256: | |||
3719 | case X86::BI__builtin_ia32_gatherq_ps: | |||
3720 | case X86::BI__builtin_ia32_gatherq_ps256: | |||
3721 | case X86::BI__builtin_ia32_gatherd_q: | |||
3722 | case X86::BI__builtin_ia32_gatherd_q256: | |||
3723 | case X86::BI__builtin_ia32_gatherq_q: | |||
3724 | case X86::BI__builtin_ia32_gatherq_q256: | |||
3725 | case X86::BI__builtin_ia32_gatherd_d: | |||
3726 | case X86::BI__builtin_ia32_gatherd_d256: | |||
3727 | case X86::BI__builtin_ia32_gatherq_d: | |||
3728 | case X86::BI__builtin_ia32_gatherq_d256: | |||
3729 | case X86::BI__builtin_ia32_gather3div2df: | |||
3730 | case X86::BI__builtin_ia32_gather3div2di: | |||
3731 | case X86::BI__builtin_ia32_gather3div4df: | |||
3732 | case X86::BI__builtin_ia32_gather3div4di: | |||
3733 | case X86::BI__builtin_ia32_gather3div4sf: | |||
3734 | case X86::BI__builtin_ia32_gather3div4si: | |||
3735 | case X86::BI__builtin_ia32_gather3div8sf: | |||
3736 | case X86::BI__builtin_ia32_gather3div8si: | |||
3737 | case X86::BI__builtin_ia32_gather3siv2df: | |||
3738 | case X86::BI__builtin_ia32_gather3siv2di: | |||
3739 | case X86::BI__builtin_ia32_gather3siv4df: | |||
3740 | case X86::BI__builtin_ia32_gather3siv4di: | |||
3741 | case X86::BI__builtin_ia32_gather3siv4sf: | |||
3742 | case X86::BI__builtin_ia32_gather3siv4si: | |||
3743 | case X86::BI__builtin_ia32_gather3siv8sf: | |||
3744 | case X86::BI__builtin_ia32_gather3siv8si: | |||
3745 | case X86::BI__builtin_ia32_gathersiv8df: | |||
3746 | case X86::BI__builtin_ia32_gathersiv16sf: | |||
3747 | case X86::BI__builtin_ia32_gatherdiv8df: | |||
3748 | case X86::BI__builtin_ia32_gatherdiv16sf: | |||
3749 | case X86::BI__builtin_ia32_gathersiv8di: | |||
3750 | case X86::BI__builtin_ia32_gathersiv16si: | |||
3751 | case X86::BI__builtin_ia32_gatherdiv8di: | |||
3752 | case X86::BI__builtin_ia32_gatherdiv16si: | |||
3753 | case X86::BI__builtin_ia32_scatterdiv2df: | |||
3754 | case X86::BI__builtin_ia32_scatterdiv2di: | |||
3755 | case X86::BI__builtin_ia32_scatterdiv4df: | |||
3756 | case X86::BI__builtin_ia32_scatterdiv4di: | |||
3757 | case X86::BI__builtin_ia32_scatterdiv4sf: | |||
3758 | case X86::BI__builtin_ia32_scatterdiv4si: | |||
3759 | case X86::BI__builtin_ia32_scatterdiv8sf: | |||
3760 | case X86::BI__builtin_ia32_scatterdiv8si: | |||
3761 | case X86::BI__builtin_ia32_scattersiv2df: | |||
3762 | case X86::BI__builtin_ia32_scattersiv2di: | |||
3763 | case X86::BI__builtin_ia32_scattersiv4df: | |||
3764 | case X86::BI__builtin_ia32_scattersiv4di: | |||
3765 | case X86::BI__builtin_ia32_scattersiv4sf: | |||
3766 | case X86::BI__builtin_ia32_scattersiv4si: | |||
3767 | case X86::BI__builtin_ia32_scattersiv8sf: | |||
3768 | case X86::BI__builtin_ia32_scattersiv8si: | |||
3769 | case X86::BI__builtin_ia32_scattersiv8df: | |||
3770 | case X86::BI__builtin_ia32_scattersiv16sf: | |||
3771 | case X86::BI__builtin_ia32_scatterdiv8df: | |||
3772 | case X86::BI__builtin_ia32_scatterdiv16sf: | |||
3773 | case X86::BI__builtin_ia32_scattersiv8di: | |||
3774 | case X86::BI__builtin_ia32_scattersiv16si: | |||
3775 | case X86::BI__builtin_ia32_scatterdiv8di: | |||
3776 | case X86::BI__builtin_ia32_scatterdiv16si: | |||
3777 | ArgNum = 4; | |||
3778 | break; | |||
3779 | } | |||
3780 | ||||
3781 | llvm::APSInt Result; | |||
3782 | ||||
3783 | // We can't check the value of a dependent argument. | |||
3784 | Expr *Arg = TheCall->getArg(ArgNum); | |||
3785 | if (Arg->isTypeDependent() || Arg->isValueDependent()) | |||
3786 | return false; | |||
3787 | ||||
3788 | // Check constant-ness first. | |||
3789 | if (SemaBuiltinConstantArg(TheCall, ArgNum, Result)) | |||
3790 | return true; | |||
3791 | ||||
3792 | if (Result == 1 || Result == 2 || Result == 4 || Result == 8) | |||
3793 | return false; | |||
3794 | ||||
3795 | return Diag(TheCall->getBeginLoc(), diag::err_x86_builtin_invalid_scale) | |||
3796 | << Arg->getSourceRange(); | |||
3797 | } | |||
3798 | ||||
3799 | enum { TileRegLow = 0, TileRegHigh = 7 }; | |||
3800 | ||||
3801 | bool Sema::CheckX86BuiltinTileArgumentsRange(CallExpr *TheCall, | |||
3802 | ArrayRef<int> ArgNums) { | |||
3803 | for (int ArgNum : ArgNums) { | |||
3804 | if (SemaBuiltinConstantArgRange(TheCall, ArgNum, TileRegLow, TileRegHigh)) | |||
3805 | return true; | |||
3806 | } | |||
3807 | return false; | |||
3808 | } | |||
3809 | ||||
3810 | bool Sema::CheckX86BuiltinTileDuplicate(CallExpr *TheCall, | |||
3811 | ArrayRef<int> ArgNums) { | |||
3812 | // Because the max number of tile register is TileRegHigh + 1, so here we use | |||
3813 | // each bit to represent the usage of them in bitset. | |||
3814 | std::bitset<TileRegHigh + 1> ArgValues; | |||
3815 | for (int ArgNum : ArgNums) { | |||
3816 | Expr *Arg = TheCall->getArg(ArgNum); | |||
3817 | if (Arg->isTypeDependent() || Arg->isValueDependent()) | |||
3818 | continue; | |||
3819 | ||||
3820 | llvm::APSInt Result; | |||
3821 | if (SemaBuiltinConstantArg(TheCall, ArgNum, Result)) | |||
3822 | return true; | |||
3823 | int ArgExtValue = Result.getExtValue(); | |||
3824 | assert((ArgExtValue >= TileRegLow || ArgExtValue <= TileRegHigh) &&(((ArgExtValue >= TileRegLow || ArgExtValue <= TileRegHigh ) && "Incorrect tile register num.") ? static_cast< void> (0) : __assert_fail ("(ArgExtValue >= TileRegLow || ArgExtValue <= TileRegHigh) && \"Incorrect tile register num.\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 3825, __PRETTY_FUNCTION__)) | |||
3825 | "Incorrect tile register num.")(((ArgExtValue >= TileRegLow || ArgExtValue <= TileRegHigh ) && "Incorrect tile register num.") ? static_cast< void> (0) : __assert_fail ("(ArgExtValue >= TileRegLow || ArgExtValue <= TileRegHigh) && \"Incorrect tile register num.\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 3825, __PRETTY_FUNCTION__)); | |||
3826 | if (ArgValues.test(ArgExtValue)) | |||
3827 | return Diag(TheCall->getBeginLoc(), | |||
3828 | diag::err_x86_builtin_tile_arg_duplicate) | |||
3829 | << TheCall->getArg(ArgNum)->getSourceRange(); | |||
3830 | ArgValues.set(ArgExtValue); | |||
3831 | } | |||
3832 | return false; | |||
3833 | } | |||
3834 | ||||
3835 | bool Sema::CheckX86BuiltinTileRangeAndDuplicate(CallExpr *TheCall, | |||
3836 | ArrayRef<int> ArgNums) { | |||
3837 | return CheckX86BuiltinTileArgumentsRange(TheCall, ArgNums) || | |||
3838 | CheckX86BuiltinTileDuplicate(TheCall, ArgNums); | |||
3839 | } | |||
3840 | ||||
3841 | bool Sema::CheckX86BuiltinTileArguments(unsigned BuiltinID, CallExpr *TheCall) { | |||
3842 | switch (BuiltinID) { | |||
3843 | default: | |||
3844 | return false; | |||
3845 | case X86::BI__builtin_ia32_tileloadd64: | |||
3846 | case X86::BI__builtin_ia32_tileloaddt164: | |||
3847 | case X86::BI__builtin_ia32_tilestored64: | |||
3848 | case X86::BI__builtin_ia32_tilezero: | |||
3849 | return CheckX86BuiltinTileArgumentsRange(TheCall, 0); | |||
3850 | case X86::BI__builtin_ia32_tdpbssd: | |||
3851 | case X86::BI__builtin_ia32_tdpbsud: | |||
3852 | case X86::BI__builtin_ia32_tdpbusd: | |||
3853 | case X86::BI__builtin_ia32_tdpbuud: | |||
3854 | case X86::BI__builtin_ia32_tdpbf16ps: | |||
3855 | return CheckX86BuiltinTileRangeAndDuplicate(TheCall, {0, 1, 2}); | |||
3856 | } | |||
3857 | } | |||
3858 | static bool isX86_32Builtin(unsigned BuiltinID) { | |||
3859 | // These builtins only work on x86-32 targets. | |||
3860 | switch (BuiltinID) { | |||
3861 | case X86::BI__builtin_ia32_readeflags_u32: | |||
3862 | case X86::BI__builtin_ia32_writeeflags_u32: | |||
3863 | return true; | |||
3864 | } | |||
3865 | ||||
3866 | return false; | |||
3867 | } | |||
3868 | ||||
3869 | bool Sema::CheckX86BuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID, | |||
3870 | CallExpr *TheCall) { | |||
3871 | if (BuiltinID == X86::BI__builtin_cpu_supports) | |||
3872 | return SemaBuiltinCpuSupports(*this, TI, TheCall); | |||
3873 | ||||
3874 | if (BuiltinID == X86::BI__builtin_cpu_is) | |||
3875 | return SemaBuiltinCpuIs(*this, TI, TheCall); | |||
3876 | ||||
3877 | // Check for 32-bit only builtins on a 64-bit target. | |||
3878 | const llvm::Triple &TT = TI.getTriple(); | |||
3879 | if (TT.getArch() != llvm::Triple::x86 && isX86_32Builtin(BuiltinID)) | |||
3880 | return Diag(TheCall->getCallee()->getBeginLoc(), | |||
3881 | diag::err_32_bit_builtin_64_bit_tgt); | |||
3882 | ||||
3883 | // If the intrinsic has rounding or SAE make sure its valid. | |||
3884 | if (CheckX86BuiltinRoundingOrSAE(BuiltinID, TheCall)) | |||
3885 | return true; | |||
3886 | ||||
3887 | // If the intrinsic has a gather/scatter scale immediate make sure its valid. | |||
3888 | if (CheckX86BuiltinGatherScatterScale(BuiltinID, TheCall)) | |||
3889 | return true; | |||
3890 | ||||
3891 | // If the intrinsic has a tile arguments, make sure they are valid. | |||
3892 | if (CheckX86BuiltinTileArguments(BuiltinID, TheCall)) | |||
3893 | return true; | |||
3894 | ||||
3895 | // For intrinsics which take an immediate value as part of the instruction, | |||
3896 | // range check them here. | |||
3897 | int i = 0, l = 0, u = 0; | |||
3898 | switch (BuiltinID) { | |||
3899 | default: | |||
3900 | return false; | |||
3901 | case X86::BI__builtin_ia32_vec_ext_v2si: | |||
3902 | case X86::BI__builtin_ia32_vec_ext_v2di: | |||
3903 | case X86::BI__builtin_ia32_vextractf128_pd256: | |||
3904 | case X86::BI__builtin_ia32_vextractf128_ps256: | |||
3905 | case X86::BI__builtin_ia32_vextractf128_si256: | |||
3906 | case X86::BI__builtin_ia32_extract128i256: | |||
3907 | case X86::BI__builtin_ia32_extractf64x4_mask: | |||
3908 | case X86::BI__builtin_ia32_extracti64x4_mask: | |||
3909 | case X86::BI__builtin_ia32_extractf32x8_mask: | |||
3910 | case X86::BI__builtin_ia32_extracti32x8_mask: | |||
3911 | case X86::BI__builtin_ia32_extractf64x2_256_mask: | |||
3912 | case X86::BI__builtin_ia32_extracti64x2_256_mask: | |||
3913 | case X86::BI__builtin_ia32_extractf32x4_256_mask: | |||
3914 | case X86::BI__builtin_ia32_extracti32x4_256_mask: | |||
3915 | i = 1; l = 0; u = 1; | |||
3916 | break; | |||
3917 | case X86::BI__builtin_ia32_vec_set_v2di: | |||
3918 | case X86::BI__builtin_ia32_vinsertf128_pd256: | |||
3919 | case X86::BI__builtin_ia32_vinsertf128_ps256: | |||
3920 | case X86::BI__builtin_ia32_vinsertf128_si256: | |||
3921 | case X86::BI__builtin_ia32_insert128i256: | |||
3922 | case X86::BI__builtin_ia32_insertf32x8: | |||
3923 | case X86::BI__builtin_ia32_inserti32x8: | |||
3924 | case X86::BI__builtin_ia32_insertf64x4: | |||
3925 | case X86::BI__builtin_ia32_inserti64x4: | |||
3926 | case X86::BI__builtin_ia32_insertf64x2_256: | |||
3927 | case X86::BI__builtin_ia32_inserti64x2_256: | |||
3928 | case X86::BI__builtin_ia32_insertf32x4_256: | |||
3929 | case X86::BI__builtin_ia32_inserti32x4_256: | |||
3930 | i = 2; l = 0; u = 1; | |||
3931 | break; | |||
3932 | case X86::BI__builtin_ia32_vpermilpd: | |||
3933 | case X86::BI__builtin_ia32_vec_ext_v4hi: | |||
3934 | case X86::BI__builtin_ia32_vec_ext_v4si: | |||
3935 | case X86::BI__builtin_ia32_vec_ext_v4sf: | |||
3936 | case X86::BI__builtin_ia32_vec_ext_v4di: | |||
3937 | case X86::BI__builtin_ia32_extractf32x4_mask: | |||
3938 | case X86::BI__builtin_ia32_extracti32x4_mask: | |||
3939 | case X86::BI__builtin_ia32_extractf64x2_512_mask: | |||
3940 | case X86::BI__builtin_ia32_extracti64x2_512_mask: | |||
3941 | i = 1; l = 0; u = 3; | |||
3942 | break; | |||
3943 | case X86::BI_mm_prefetch: | |||
3944 | case X86::BI__builtin_ia32_vec_ext_v8hi: | |||
3945 | case X86::BI__builtin_ia32_vec_ext_v8si: | |||
3946 | i = 1; l = 0; u = 7; | |||
3947 | break; | |||
3948 | case X86::BI__builtin_ia32_sha1rnds4: | |||
3949 | case X86::BI__builtin_ia32_blendpd: | |||
3950 | case X86::BI__builtin_ia32_shufpd: | |||
3951 | case X86::BI__builtin_ia32_vec_set_v4hi: | |||
3952 | case X86::BI__builtin_ia32_vec_set_v4si: | |||
3953 | case X86::BI__builtin_ia32_vec_set_v4di: | |||
3954 | case X86::BI__builtin_ia32_shuf_f32x4_256: | |||
3955 | case X86::BI__builtin_ia32_shuf_f64x2_256: | |||
3956 | case X86::BI__builtin_ia32_shuf_i32x4_256: | |||
3957 | case X86::BI__builtin_ia32_shuf_i64x2_256: | |||
3958 | case X86::BI__builtin_ia32_insertf64x2_512: | |||
3959 | case X86::BI__builtin_ia32_inserti64x2_512: | |||
3960 | case X86::BI__builtin_ia32_insertf32x4: | |||
3961 | case X86::BI__builtin_ia32_inserti32x4: | |||
3962 | i = 2; l = 0; u = 3; | |||
3963 | break; | |||
3964 | case X86::BI__builtin_ia32_vpermil2pd: | |||
3965 | case X86::BI__builtin_ia32_vpermil2pd256: | |||
3966 | case X86::BI__builtin_ia32_vpermil2ps: | |||
3967 | case X86::BI__builtin_ia32_vpermil2ps256: | |||
3968 | i = 3; l = 0; u = 3; | |||
3969 | break; | |||
3970 | case X86::BI__builtin_ia32_cmpb128_mask: | |||
3971 | case X86::BI__builtin_ia32_cmpw128_mask: | |||
3972 | case X86::BI__builtin_ia32_cmpd128_mask: | |||
3973 | case X86::BI__builtin_ia32_cmpq128_mask: | |||
3974 | case X86::BI__builtin_ia32_cmpb256_mask: | |||
3975 | case X86::BI__builtin_ia32_cmpw256_mask: | |||
3976 | case X86::BI__builtin_ia32_cmpd256_mask: | |||
3977 | case X86::BI__builtin_ia32_cmpq256_mask: | |||
3978 | case X86::BI__builtin_ia32_cmpb512_mask: | |||
3979 | case X86::BI__builtin_ia32_cmpw512_mask: | |||
3980 | case X86::BI__builtin_ia32_cmpd512_mask: | |||
3981 | case X86::BI__builtin_ia32_cmpq512_mask: | |||
3982 | case X86::BI__builtin_ia32_ucmpb128_mask: | |||
3983 | case X86::BI__builtin_ia32_ucmpw128_mask: | |||
3984 | case X86::BI__builtin_ia32_ucmpd128_mask: | |||
3985 | case X86::BI__builtin_ia32_ucmpq128_mask: | |||
3986 | case X86::BI__builtin_ia32_ucmpb256_mask: | |||
3987 | case X86::BI__builtin_ia32_ucmpw256_mask: | |||
3988 | case X86::BI__builtin_ia32_ucmpd256_mask: | |||
3989 | case X86::BI__builtin_ia32_ucmpq256_mask: | |||
3990 | case X86::BI__builtin_ia32_ucmpb512_mask: | |||
3991 | case X86::BI__builtin_ia32_ucmpw512_mask: | |||
3992 | case X86::BI__builtin_ia32_ucmpd512_mask: | |||
3993 | case X86::BI__builtin_ia32_ucmpq512_mask: | |||
3994 | case X86::BI__builtin_ia32_vpcomub: | |||
3995 | case X86::BI__builtin_ia32_vpcomuw: | |||
3996 | case X86::BI__builtin_ia32_vpcomud: | |||
3997 | case X86::BI__builtin_ia32_vpcomuq: | |||
3998 | case X86::BI__builtin_ia32_vpcomb: | |||
3999 | case X86::BI__builtin_ia32_vpcomw: | |||
4000 | case X86::BI__builtin_ia32_vpcomd: | |||
4001 | case X86::BI__builtin_ia32_vpcomq: | |||
4002 | case X86::BI__builtin_ia32_vec_set_v8hi: | |||
4003 | case X86::BI__builtin_ia32_vec_set_v8si: | |||
4004 | i = 2; l = 0; u = 7; | |||
4005 | break; | |||
4006 | case X86::BI__builtin_ia32_vpermilpd256: | |||
4007 | case X86::BI__builtin_ia32_roundps: | |||
4008 | case X86::BI__builtin_ia32_roundpd: | |||
4009 | case X86::BI__builtin_ia32_roundps256: | |||
4010 | case X86::BI__builtin_ia32_roundpd256: | |||
4011 | case X86::BI__builtin_ia32_getmantpd128_mask: | |||
4012 | case X86::BI__builtin_ia32_getmantpd256_mask: | |||
4013 | case X86::BI__builtin_ia32_getmantps128_mask: | |||
4014 | case X86::BI__builtin_ia32_getmantps256_mask: | |||
4015 | case X86::BI__builtin_ia32_getmantpd512_mask: | |||
4016 | case X86::BI__builtin_ia32_getmantps512_mask: | |||
4017 | case X86::BI__builtin_ia32_vec_ext_v16qi: | |||
4018 | case X86::BI__builtin_ia32_vec_ext_v16hi: | |||
4019 | i = 1; l = 0; u = 15; | |||
4020 | break; | |||
4021 | case X86::BI__builtin_ia32_pblendd128: | |||
4022 | case X86::BI__builtin_ia32_blendps: | |||
4023 | case X86::BI__builtin_ia32_blendpd256: | |||
4024 | case X86::BI__builtin_ia32_shufpd256: | |||
4025 | case X86::BI__builtin_ia32_roundss: | |||
4026 | case X86::BI__builtin_ia32_roundsd: | |||
4027 | case X86::BI__builtin_ia32_rangepd128_mask: | |||
4028 | case X86::BI__builtin_ia32_rangepd256_mask: | |||
4029 | case X86::BI__builtin_ia32_rangepd512_mask: | |||
4030 | case X86::BI__builtin_ia32_rangeps128_mask: | |||
4031 | case X86::BI__builtin_ia32_rangeps256_mask: | |||
4032 | case X86::BI__builtin_ia32_rangeps512_mask: | |||
4033 | case X86::BI__builtin_ia32_getmantsd_round_mask: | |||
4034 | case X86::BI__builtin_ia32_getmantss_round_mask: | |||
4035 | case X86::BI__builtin_ia32_vec_set_v16qi: | |||
4036 | case X86::BI__builtin_ia32_vec_set_v16hi: | |||
4037 | i = 2; l = 0; u = 15; | |||
4038 | break; | |||
4039 | case X86::BI__builtin_ia32_vec_ext_v32qi: | |||
4040 | i = 1; l = 0; u = 31; | |||
4041 | break; | |||
4042 | case X86::BI__builtin_ia32_cmpps: | |||
4043 | case X86::BI__builtin_ia32_cmpss: | |||
4044 | case X86::BI__builtin_ia32_cmppd: | |||
4045 | case X86::BI__builtin_ia32_cmpsd: | |||
4046 | case X86::BI__builtin_ia32_cmpps256: | |||
4047 | case X86::BI__builtin_ia32_cmppd256: | |||
4048 | case X86::BI__builtin_ia32_cmpps128_mask: | |||
4049 | case X86::BI__builtin_ia32_cmppd128_mask: | |||
4050 | case X86::BI__builtin_ia32_cmpps256_mask: | |||
4051 | case X86::BI__builtin_ia32_cmppd256_mask: | |||
4052 | case X86::BI__builtin_ia32_cmpps512_mask: | |||
4053 | case X86::BI__builtin_ia32_cmppd512_mask: | |||
4054 | case X86::BI__builtin_ia32_cmpsd_mask: | |||
4055 | case X86::BI__builtin_ia32_cmpss_mask: | |||
4056 | case X86::BI__builtin_ia32_vec_set_v32qi: | |||
4057 | i = 2; l = 0; u = 31; | |||
4058 | break; | |||
4059 | case X86::BI__builtin_ia32_permdf256: | |||
4060 | case X86::BI__builtin_ia32_permdi256: | |||
4061 | case X86::BI__builtin_ia32_permdf512: | |||
4062 | case X86::BI__builtin_ia32_permdi512: | |||
4063 | case X86::BI__builtin_ia32_vpermilps: | |||
4064 | case X86::BI__builtin_ia32_vpermilps256: | |||
4065 | case X86::BI__builtin_ia32_vpermilpd512: | |||
4066 | case X86::BI__builtin_ia32_vpermilps512: | |||
4067 | case X86::BI__builtin_ia32_pshufd: | |||
4068 | case X86::BI__builtin_ia32_pshufd256: | |||
4069 | case X86::BI__builtin_ia32_pshufd512: | |||
4070 | case X86::BI__builtin_ia32_pshufhw: | |||
4071 | case X86::BI__builtin_ia32_pshufhw256: | |||
4072 | case X86::BI__builtin_ia32_pshufhw512: | |||
4073 | case X86::BI__builtin_ia32_pshuflw: | |||
4074 | case X86::BI__builtin_ia32_pshuflw256: | |||
4075 | case X86::BI__builtin_ia32_pshuflw512: | |||
4076 | case X86::BI__builtin_ia32_vcvtps2ph: | |||
4077 | case X86::BI__builtin_ia32_vcvtps2ph_mask: | |||
4078 | case X86::BI__builtin_ia32_vcvtps2ph256: | |||
4079 | case X86::BI__builtin_ia32_vcvtps2ph256_mask: | |||
4080 | case X86::BI__builtin_ia32_vcvtps2ph512_mask: | |||
4081 | case X86::BI__builtin_ia32_rndscaleps_128_mask: | |||
4082 | case X86::BI__builtin_ia32_rndscalepd_128_mask: | |||
4083 | case X86::BI__builtin_ia32_rndscaleps_256_mask: | |||
4084 | case X86::BI__builtin_ia32_rndscalepd_256_mask: | |||
4085 | case X86::BI__builtin_ia32_rndscaleps_mask: | |||
4086 | case X86::BI__builtin_ia32_rndscalepd_mask: | |||
4087 | case X86::BI__builtin_ia32_reducepd128_mask: | |||
4088 | case X86::BI__builtin_ia32_reducepd256_mask: | |||
4089 | case X86::BI__builtin_ia32_reducepd512_mask: | |||
4090 | case X86::BI__builtin_ia32_reduceps128_mask: | |||
4091 | case X86::BI__builtin_ia32_reduceps256_mask: | |||
4092 | case X86::BI__builtin_ia32_reduceps512_mask: | |||
4093 | case X86::BI__builtin_ia32_prold512: | |||
4094 | case X86::BI__builtin_ia32_prolq512: | |||
4095 | case X86::BI__builtin_ia32_prold128: | |||
4096 | case X86::BI__builtin_ia32_prold256: | |||
4097 | case X86::BI__builtin_ia32_prolq128: | |||
4098 | case X86::BI__builtin_ia32_prolq256: | |||
4099 | case X86::BI__builtin_ia32_prord512: | |||
4100 | case X86::BI__builtin_ia32_prorq512: | |||
4101 | case X86::BI__builtin_ia32_prord128: | |||
4102 | case X86::BI__builtin_ia32_prord256: | |||
4103 | case X86::BI__builtin_ia32_prorq128: | |||
4104 | case X86::BI__builtin_ia32_prorq256: | |||
4105 | case X86::BI__builtin_ia32_fpclasspd128_mask: | |||
4106 | case X86::BI__builtin_ia32_fpclasspd256_mask: | |||
4107 | case X86::BI__builtin_ia32_fpclassps128_mask: | |||
4108 | case X86::BI__builtin_ia32_fpclassps256_mask: | |||
4109 | case X86::BI__builtin_ia32_fpclassps512_mask: | |||
4110 | case X86::BI__builtin_ia32_fpclasspd512_mask: | |||
4111 | case X86::BI__builtin_ia32_fpclasssd_mask: | |||
4112 | case X86::BI__builtin_ia32_fpclassss_mask: | |||
4113 | case X86::BI__builtin_ia32_pslldqi128_byteshift: | |||
4114 | case X86::BI__builtin_ia32_pslldqi256_byteshift: | |||
4115 | case X86::BI__builtin_ia32_pslldqi512_byteshift: | |||
4116 | case X86::BI__builtin_ia32_psrldqi128_byteshift: | |||
4117 | case X86::BI__builtin_ia32_psrldqi256_byteshift: | |||
4118 | case X86::BI__builtin_ia32_psrldqi512_byteshift: | |||
4119 | case X86::BI__builtin_ia32_kshiftliqi: | |||
4120 | case X86::BI__builtin_ia32_kshiftlihi: | |||
4121 | case X86::BI__builtin_ia32_kshiftlisi: | |||
4122 | case X86::BI__builtin_ia32_kshiftlidi: | |||
4123 | case X86::BI__builtin_ia32_kshiftriqi: | |||
4124 | case X86::BI__builtin_ia32_kshiftrihi: | |||
4125 | case X86::BI__builtin_ia32_kshiftrisi: | |||
4126 | case X86::BI__builtin_ia32_kshiftridi: | |||
4127 | i = 1; l = 0; u = 255; | |||
4128 | break; | |||
4129 | case X86::BI__builtin_ia32_vperm2f128_pd256: | |||
4130 | case X86::BI__builtin_ia32_vperm2f128_ps256: | |||
4131 | case X86::BI__builtin_ia32_vperm2f128_si256: | |||
4132 | case X86::BI__builtin_ia32_permti256: | |||
4133 | case X86::BI__builtin_ia32_pblendw128: | |||
4134 | case X86::BI__builtin_ia32_pblendw256: | |||
4135 | case X86::BI__builtin_ia32_blendps256: | |||
4136 | case X86::BI__builtin_ia32_pblendd256: | |||
4137 | case X86::BI__builtin_ia32_palignr128: | |||
4138 | case X86::BI__builtin_ia32_palignr256: | |||
4139 | case X86::BI__builtin_ia32_palignr512: | |||
4140 | case X86::BI__builtin_ia32_alignq512: | |||
4141 | case X86::BI__builtin_ia32_alignd512: | |||
4142 | case X86::BI__builtin_ia32_alignd128: | |||
4143 | case X86::BI__builtin_ia32_alignd256: | |||
4144 | case X86::BI__builtin_ia32_alignq128: | |||
4145 | case X86::BI__builtin_ia32_alignq256: | |||
4146 | case X86::BI__builtin_ia32_vcomisd: | |||
4147 | case X86::BI__builtin_ia32_vcomiss: | |||
4148 | case X86::BI__builtin_ia32_shuf_f32x4: | |||
4149 | case X86::BI__builtin_ia32_shuf_f64x2: | |||
4150 | case X86::BI__builtin_ia32_shuf_i32x4: | |||
4151 | case X86::BI__builtin_ia32_shuf_i64x2: | |||
4152 | case X86::BI__builtin_ia32_shufpd512: | |||
4153 | case X86::BI__builtin_ia32_shufps: | |||
4154 | case X86::BI__builtin_ia32_shufps256: | |||
4155 | case X86::BI__builtin_ia32_shufps512: | |||
4156 | case X86::BI__builtin_ia32_dbpsadbw128: | |||
4157 | case X86::BI__builtin_ia32_dbpsadbw256: | |||
4158 | case X86::BI__builtin_ia32_dbpsadbw512: | |||
4159 | case X86::BI__builtin_ia32_vpshldd128: | |||
4160 | case X86::BI__builtin_ia32_vpshldd256: | |||
4161 | case X86::BI__builtin_ia32_vpshldd512: | |||
4162 | case X86::BI__builtin_ia32_vpshldq128: | |||
4163 | case X86::BI__builtin_ia32_vpshldq256: | |||
4164 | case X86::BI__builtin_ia32_vpshldq512: | |||
4165 | case X86::BI__builtin_ia32_vpshldw128: | |||
4166 | case X86::BI__builtin_ia32_vpshldw256: | |||
4167 | case X86::BI__builtin_ia32_vpshldw512: | |||
4168 | case X86::BI__builtin_ia32_vpshrdd128: | |||
4169 | case X86::BI__builtin_ia32_vpshrdd256: | |||
4170 | case X86::BI__builtin_ia32_vpshrdd512: | |||
4171 | case X86::BI__builtin_ia32_vpshrdq128: | |||
4172 | case X86::BI__builtin_ia32_vpshrdq256: | |||
4173 | case X86::BI__builtin_ia32_vpshrdq512: | |||
4174 | case X86::BI__builtin_ia32_vpshrdw128: | |||
4175 | case X86::BI__builtin_ia32_vpshrdw256: | |||
4176 | case X86::BI__builtin_ia32_vpshrdw512: | |||
4177 | i = 2; l = 0; u = 255; | |||
4178 | break; | |||
4179 | case X86::BI__builtin_ia32_fixupimmpd512_mask: | |||
4180 | case X86::BI__builtin_ia32_fixupimmpd512_maskz: | |||
4181 | case X86::BI__builtin_ia32_fixupimmps512_mask: | |||
4182 | case X86::BI__builtin_ia32_fixupimmps512_maskz: | |||
4183 | case X86::BI__builtin_ia32_fixupimmsd_mask: | |||
4184 | case X86::BI__builtin_ia32_fixupimmsd_maskz: | |||
4185 | case X86::BI__builtin_ia32_fixupimmss_mask: | |||
4186 | case X86::BI__builtin_ia32_fixupimmss_maskz: | |||
4187 | case X86::BI__builtin_ia32_fixupimmpd128_mask: | |||
4188 | case X86::BI__builtin_ia32_fixupimmpd128_maskz: | |||
4189 | case X86::BI__builtin_ia32_fixupimmpd256_mask: | |||
4190 | case X86::BI__builtin_ia32_fixupimmpd256_maskz: | |||
4191 | case X86::BI__builtin_ia32_fixupimmps128_mask: | |||
4192 | case X86::BI__builtin_ia32_fixupimmps128_maskz: | |||
4193 | case X86::BI__builtin_ia32_fixupimmps256_mask: | |||
4194 | case X86::BI__builtin_ia32_fixupimmps256_maskz: | |||
4195 | case X86::BI__builtin_ia32_pternlogd512_mask: | |||
4196 | case X86::BI__builtin_ia32_pternlogd512_maskz: | |||
4197 | case X86::BI__builtin_ia32_pternlogq512_mask: | |||
4198 | case X86::BI__builtin_ia32_pternlogq512_maskz: | |||
4199 | case X86::BI__builtin_ia32_pternlogd128_mask: | |||
4200 | case X86::BI__builtin_ia32_pternlogd128_maskz: | |||
4201 | case X86::BI__builtin_ia32_pternlogd256_mask: | |||
4202 | case X86::BI__builtin_ia32_pternlogd256_maskz: | |||
4203 | case X86::BI__builtin_ia32_pternlogq128_mask: | |||
4204 | case X86::BI__builtin_ia32_pternlogq128_maskz: | |||
4205 | case X86::BI__builtin_ia32_pternlogq256_mask: | |||
4206 | case X86::BI__builtin_ia32_pternlogq256_maskz: | |||
4207 | i = 3; l = 0; u = 255; | |||
4208 | break; | |||
4209 | case X86::BI__builtin_ia32_gatherpfdpd: | |||
4210 | case X86::BI__builtin_ia32_gatherpfdps: | |||
4211 | case X86::BI__builtin_ia32_gatherpfqpd: | |||
4212 | case X86::BI__builtin_ia32_gatherpfqps: | |||
4213 | case X86::BI__builtin_ia32_scatterpfdpd: | |||
4214 | case X86::BI__builtin_ia32_scatterpfdps: | |||
4215 | case X86::BI__builtin_ia32_scatterpfqpd: | |||
4216 | case X86::BI__builtin_ia32_scatterpfqps: | |||
4217 | i = 4; l = 2; u = 3; | |||
4218 | break; | |||
4219 | case X86::BI__builtin_ia32_reducesd_mask: | |||
4220 | case X86::BI__builtin_ia32_reducess_mask: | |||
4221 | case X86::BI__builtin_ia32_rndscalesd_round_mask: | |||
4222 | case X86::BI__builtin_ia32_rndscaless_round_mask: | |||
4223 | i = 4; l = 0; u = 255; | |||
4224 | break; | |||
4225 | } | |||
4226 | ||||
4227 | // Note that we don't force a hard error on the range check here, allowing | |||
4228 | // template-generated or macro-generated dead code to potentially have out-of- | |||
4229 | // range values. These need to code generate, but don't need to necessarily | |||
4230 | // make any sense. We use a warning that defaults to an error. | |||
4231 | return SemaBuiltinConstantArgRange(TheCall, i, l, u, /*RangeIsError*/ false); | |||
4232 | } | |||
4233 | ||||
4234 | /// Given a FunctionDecl's FormatAttr, attempts to populate the FomatStringInfo | |||
4235 | /// parameter with the FormatAttr's correct format_idx and firstDataArg. | |||
4236 | /// Returns true when the format fits the function and the FormatStringInfo has | |||
4237 | /// been populated. | |||
4238 | bool Sema::getFormatStringInfo(const FormatAttr *Format, bool IsCXXMember, | |||
4239 | FormatStringInfo *FSI) { | |||
4240 | FSI->HasVAListArg = Format->getFirstArg() == 0; | |||
4241 | FSI->FormatIdx = Format->getFormatIdx() - 1; | |||
4242 | FSI->FirstDataArg = FSI->HasVAListArg ? 0 : Format->getFirstArg() - 1; | |||
4243 | ||||
4244 | // The way the format attribute works in GCC, the implicit this argument | |||
4245 | // of member functions is counted. However, it doesn't appear in our own | |||
4246 | // lists, so decrement format_idx in that case. | |||
4247 | if (IsCXXMember) { | |||
4248 | if(FSI->FormatIdx == 0) | |||
4249 | return false; | |||
4250 | --FSI->FormatIdx; | |||
4251 | if (FSI->FirstDataArg != 0) | |||
4252 | --FSI->FirstDataArg; | |||
4253 | } | |||
4254 | return true; | |||
4255 | } | |||
4256 | ||||
4257 | /// Checks if a the given expression evaluates to null. | |||
4258 | /// | |||
4259 | /// Returns true if the value evaluates to null. | |||
4260 | static bool CheckNonNullExpr(Sema &S, const Expr *Expr) { | |||
4261 | // If the expression has non-null type, it doesn't evaluate to null. | |||
4262 | if (auto nullability | |||
4263 | = Expr->IgnoreImplicit()->getType()->getNullability(S.Context)) { | |||
4264 | if (*nullability == NullabilityKind::NonNull) | |||
4265 | return false; | |||
4266 | } | |||
4267 | ||||
4268 | // As a special case, transparent unions initialized with zero are | |||
4269 | // considered null for the purposes of the nonnull attribute. | |||
4270 | if (const RecordType *UT = Expr->getType()->getAsUnionType()) { | |||
4271 | if (UT->getDecl()->hasAttr<TransparentUnionAttr>()) | |||
4272 | if (const CompoundLiteralExpr *CLE = | |||
4273 | dyn_cast<CompoundLiteralExpr>(Expr)) | |||
4274 | if (const InitListExpr *ILE = | |||
4275 | dyn_cast<InitListExpr>(CLE->getInitializer())) | |||
4276 | Expr = ILE->getInit(0); | |||
4277 | } | |||
4278 | ||||
4279 | bool Result; | |||
4280 | return (!Expr->isValueDependent() && | |||
4281 | Expr->EvaluateAsBooleanCondition(Result, S.Context) && | |||
4282 | !Result); | |||
4283 | } | |||
4284 | ||||
4285 | static void CheckNonNullArgument(Sema &S, | |||
4286 | const Expr *ArgExpr, | |||
4287 | SourceLocation CallSiteLoc) { | |||
4288 | if (CheckNonNullExpr(S, ArgExpr)) | |||
4289 | S.DiagRuntimeBehavior(CallSiteLoc, ArgExpr, | |||
4290 | S.PDiag(diag::warn_null_arg) | |||
4291 | << ArgExpr->getSourceRange()); | |||
4292 | } | |||
4293 | ||||
4294 | bool Sema::GetFormatNSStringIdx(const FormatAttr *Format, unsigned &Idx) { | |||
4295 | FormatStringInfo FSI; | |||
4296 | if ((GetFormatStringType(Format) == FST_NSString) && | |||
4297 | getFormatStringInfo(Format, false, &FSI)) { | |||
4298 | Idx = FSI.FormatIdx; | |||
4299 | return true; | |||
4300 | } | |||
4301 | return false; | |||
4302 | } | |||
4303 | ||||
4304 | /// Diagnose use of %s directive in an NSString which is being passed | |||
4305 | /// as formatting string to formatting method. | |||
4306 | static void | |||
4307 | DiagnoseCStringFormatDirectiveInCFAPI(Sema &S, | |||
4308 | const NamedDecl *FDecl, | |||
4309 | Expr **Args, | |||
4310 | unsigned NumArgs) { | |||
4311 | unsigned Idx = 0; | |||
4312 | bool Format = false; | |||
4313 | ObjCStringFormatFamily SFFamily = FDecl->getObjCFStringFormattingFamily(); | |||
4314 | if (SFFamily == ObjCStringFormatFamily::SFF_CFString) { | |||
4315 | Idx = 2; | |||
4316 | Format = true; | |||
4317 | } | |||
4318 | else | |||
4319 | for (const auto *I : FDecl->specific_attrs<FormatAttr>()) { | |||
4320 | if (S.GetFormatNSStringIdx(I, Idx)) { | |||
4321 | Format = true; | |||
4322 | break; | |||
4323 | } | |||
4324 | } | |||
4325 | if (!Format || NumArgs <= Idx) | |||
4326 | return; | |||
4327 | const Expr *FormatExpr = Args[Idx]; | |||
4328 | if (const CStyleCastExpr *CSCE = dyn_cast<CStyleCastExpr>(FormatExpr)) | |||
4329 | FormatExpr = CSCE->getSubExpr(); | |||
4330 | const StringLiteral *FormatString; | |||
4331 | if (const ObjCStringLiteral *OSL = | |||
4332 | dyn_cast<ObjCStringLiteral>(FormatExpr->IgnoreParenImpCasts())) | |||
4333 | FormatString = OSL->getString(); | |||
4334 | else | |||
4335 | FormatString = dyn_cast<StringLiteral>(FormatExpr->IgnoreParenImpCasts()); | |||
4336 | if (!FormatString) | |||
4337 | return; | |||
4338 | if (S.FormatStringHasSArg(FormatString)) { | |||
4339 | S.Diag(FormatExpr->getExprLoc(), diag::warn_objc_cdirective_format_string) | |||
4340 | << "%s" << 1 << 1; | |||
4341 | S.Diag(FDecl->getLocation(), diag::note_entity_declared_at) | |||
4342 | << FDecl->getDeclName(); | |||
4343 | } | |||
4344 | } | |||
4345 | ||||
4346 | /// Determine whether the given type has a non-null nullability annotation. | |||
4347 | static bool isNonNullType(ASTContext &ctx, QualType type) { | |||
4348 | if (auto nullability = type->getNullability(ctx)) | |||
4349 | return *nullability == NullabilityKind::NonNull; | |||
4350 | ||||
4351 | return false; | |||
4352 | } | |||
4353 | ||||
4354 | static void CheckNonNullArguments(Sema &S, | |||
4355 | const NamedDecl *FDecl, | |||
4356 | const FunctionProtoType *Proto, | |||
4357 | ArrayRef<const Expr *> Args, | |||
4358 | SourceLocation CallSiteLoc) { | |||
4359 | assert((FDecl || Proto) && "Need a function declaration or prototype")(((FDecl || Proto) && "Need a function declaration or prototype" ) ? static_cast<void> (0) : __assert_fail ("(FDecl || Proto) && \"Need a function declaration or prototype\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 4359, __PRETTY_FUNCTION__)); | |||
4360 | ||||
4361 | // Already checked by by constant evaluator. | |||
4362 | if (S.isConstantEvaluated()) | |||
4363 | return; | |||
4364 | // Check the attributes attached to the method/function itself. | |||
4365 | llvm::SmallBitVector NonNullArgs; | |||
4366 | if (FDecl) { | |||
4367 | // Handle the nonnull attribute on the function/method declaration itself. | |||
4368 | for (const auto *NonNull : FDecl->specific_attrs<NonNullAttr>()) { | |||
4369 | if (!NonNull->args_size()) { | |||
4370 | // Easy case: all pointer arguments are nonnull. | |||
4371 | for (const auto *Arg : Args) | |||
4372 | if (S.isValidPointerAttrType(Arg->getType())) | |||
4373 | CheckNonNullArgument(S, Arg, CallSiteLoc); | |||
4374 | return; | |||
4375 | } | |||
4376 | ||||
4377 | for (const ParamIdx &Idx : NonNull->args()) { | |||
4378 | unsigned IdxAST = Idx.getASTIndex(); | |||
4379 | if (IdxAST >= Args.size()) | |||
4380 | continue; | |||
4381 | if (NonNullArgs.empty()) | |||
4382 | NonNullArgs.resize(Args.size()); | |||
4383 | NonNullArgs.set(IdxAST); | |||
4384 | } | |||
4385 | } | |||
4386 | } | |||
4387 | ||||
4388 | if (FDecl && (isa<FunctionDecl>(FDecl) || isa<ObjCMethodDecl>(FDecl))) { | |||
4389 | // Handle the nonnull attribute on the parameters of the | |||
4390 | // function/method. | |||
4391 | ArrayRef<ParmVarDecl*> parms; | |||
4392 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(FDecl)) | |||
4393 | parms = FD->parameters(); | |||
4394 | else | |||
4395 | parms = cast<ObjCMethodDecl>(FDecl)->parameters(); | |||
4396 | ||||
4397 | unsigned ParamIndex = 0; | |||
4398 | for (ArrayRef<ParmVarDecl*>::iterator I = parms.begin(), E = parms.end(); | |||
4399 | I != E; ++I, ++ParamIndex) { | |||
4400 | const ParmVarDecl *PVD = *I; | |||
4401 | if (PVD->hasAttr<NonNullAttr>() || | |||
4402 | isNonNullType(S.Context, PVD->getType())) { | |||
4403 | if (NonNullArgs.empty()) | |||
4404 | NonNullArgs.resize(Args.size()); | |||
4405 | ||||
4406 | NonNullArgs.set(ParamIndex); | |||
4407 | } | |||
4408 | } | |||
4409 | } else { | |||
4410 | // If we have a non-function, non-method declaration but no | |||
4411 | // function prototype, try to dig out the function prototype. | |||
4412 | if (!Proto) { | |||
4413 | if (const ValueDecl *VD = dyn_cast<ValueDecl>(FDecl)) { | |||
4414 | QualType type = VD->getType().getNonReferenceType(); | |||
4415 | if (auto pointerType = type->getAs<PointerType>()) | |||
4416 | type = pointerType->getPointeeType(); | |||
4417 | else if (auto blockType = type->getAs<BlockPointerType>()) | |||
4418 | type = blockType->getPointeeType(); | |||
4419 | // FIXME: data member pointers? | |||
4420 | ||||
4421 | // Dig out the function prototype, if there is one. | |||
4422 | Proto = type->getAs<FunctionProtoType>(); | |||
4423 | } | |||
4424 | } | |||
4425 | ||||
4426 | // Fill in non-null argument information from the nullability | |||
4427 | // information on the parameter types (if we have them). | |||
4428 | if (Proto) { | |||
4429 | unsigned Index = 0; | |||
4430 | for (auto paramType : Proto->getParamTypes()) { | |||
4431 | if (isNonNullType(S.Context, paramType)) { | |||
4432 | if (NonNullArgs.empty()) | |||
4433 | NonNullArgs.resize(Args.size()); | |||
4434 | ||||
4435 | NonNullArgs.set(Index); | |||
4436 | } | |||
4437 | ||||
4438 | ++Index; | |||
4439 | } | |||
4440 | } | |||
4441 | } | |||
4442 | ||||
4443 | // Check for non-null arguments. | |||
4444 | for (unsigned ArgIndex = 0, ArgIndexEnd = NonNullArgs.size(); | |||
4445 | ArgIndex != ArgIndexEnd; ++ArgIndex) { | |||
4446 | if (NonNullArgs[ArgIndex]) | |||
4447 | CheckNonNullArgument(S, Args[ArgIndex], CallSiteLoc); | |||
4448 | } | |||
4449 | } | |||
4450 | ||||
4451 | /// Handles the checks for format strings, non-POD arguments to vararg | |||
4452 | /// functions, NULL arguments passed to non-NULL parameters, and diagnose_if | |||
4453 | /// attributes. | |||
4454 | void Sema::checkCall(NamedDecl *FDecl, const FunctionProtoType *Proto, | |||
4455 | const Expr *ThisArg, ArrayRef<const Expr *> Args, | |||
4456 | bool IsMemberFunction, SourceLocation Loc, | |||
4457 | SourceRange Range, VariadicCallType CallType) { | |||
4458 | // FIXME: We should check as much as we can in the template definition. | |||
4459 | if (CurContext->isDependentContext()) | |||
4460 | return; | |||
4461 | ||||
4462 | // Printf and scanf checking. | |||
4463 | llvm::SmallBitVector CheckedVarArgs; | |||
4464 | if (FDecl) { | |||
4465 | for (const auto *I : FDecl->specific_attrs<FormatAttr>()) { | |||
4466 | // Only create vector if there are format attributes. | |||
4467 | CheckedVarArgs.resize(Args.size()); | |||
4468 | ||||
4469 | CheckFormatArguments(I, Args, IsMemberFunction, CallType, Loc, Range, | |||
4470 | CheckedVarArgs); | |||
4471 | } | |||
4472 | } | |||
4473 | ||||
4474 | // Refuse POD arguments that weren't caught by the format string | |||
4475 | // checks above. | |||
4476 | auto *FD = dyn_cast_or_null<FunctionDecl>(FDecl); | |||
4477 | if (CallType != VariadicDoesNotApply && | |||
4478 | (!FD || FD->getBuiltinID() != Builtin::BI__noop)) { | |||
4479 | unsigned NumParams = Proto ? Proto->getNumParams() | |||
4480 | : FDecl && isa<FunctionDecl>(FDecl) | |||
4481 | ? cast<FunctionDecl>(FDecl)->getNumParams() | |||
4482 | : FDecl && isa<ObjCMethodDecl>(FDecl) | |||
4483 | ? cast<ObjCMethodDecl>(FDecl)->param_size() | |||
4484 | : 0; | |||
4485 | ||||
4486 | for (unsigned ArgIdx = NumParams; ArgIdx < Args.size(); ++ArgIdx) { | |||
4487 | // Args[ArgIdx] can be null in malformed code. | |||
4488 | if (const Expr *Arg = Args[ArgIdx]) { | |||
4489 | if (CheckedVarArgs.empty() || !CheckedVarArgs[ArgIdx]) | |||
4490 | checkVariadicArgument(Arg, CallType); | |||
4491 | } | |||
4492 | } | |||
4493 | } | |||
4494 | ||||
4495 | if (FDecl || Proto) { | |||
4496 | CheckNonNullArguments(*this, FDecl, Proto, Args, Loc); | |||
4497 | ||||
4498 | // Type safety checking. | |||
4499 | if (FDecl) { | |||
4500 | for (const auto *I : FDecl->specific_attrs<ArgumentWithTypeTagAttr>()) | |||
4501 | CheckArgumentWithTypeTag(I, Args, Loc); | |||
4502 | } | |||
4503 | } | |||
4504 | ||||
4505 | if (FDecl && FDecl->hasAttr<AllocAlignAttr>()) { | |||
4506 | auto *AA = FDecl->getAttr<AllocAlignAttr>(); | |||
4507 | const Expr *Arg = Args[AA->getParamIndex().getASTIndex()]; | |||
4508 | if (!Arg->isValueDependent()) { | |||
4509 | Expr::EvalResult Align; | |||
4510 | if (Arg->EvaluateAsInt(Align, Context)) { | |||
4511 | const llvm::APSInt &I = Align.Val.getInt(); | |||
4512 | if (!I.isPowerOf2()) | |||
4513 | Diag(Arg->getExprLoc(), diag::warn_alignment_not_power_of_two) | |||
4514 | << Arg->getSourceRange(); | |||
4515 | ||||
4516 | if (I > Sema::MaximumAlignment) | |||
4517 | Diag(Arg->getExprLoc(), diag::warn_assume_aligned_too_great) | |||
4518 | << Arg->getSourceRange() << Sema::MaximumAlignment; | |||
4519 | } | |||
4520 | } | |||
4521 | } | |||
4522 | ||||
4523 | if (FD) | |||
4524 | diagnoseArgDependentDiagnoseIfAttrs(FD, ThisArg, Args, Loc); | |||
4525 | } | |||
4526 | ||||
4527 | /// CheckConstructorCall - Check a constructor call for correctness and safety | |||
4528 | /// properties not enforced by the C type system. | |||
4529 | void Sema::CheckConstructorCall(FunctionDecl *FDecl, | |||
4530 | ArrayRef<const Expr *> Args, | |||
4531 | const FunctionProtoType *Proto, | |||
4532 | SourceLocation Loc) { | |||
4533 | VariadicCallType CallType = | |||
4534 | Proto->isVariadic() ? VariadicConstructor : VariadicDoesNotApply; | |||
4535 | checkCall(FDecl, Proto, /*ThisArg=*/nullptr, Args, /*IsMemberFunction=*/true, | |||
4536 | Loc, SourceRange(), CallType); | |||
4537 | } | |||
4538 | ||||
4539 | /// CheckFunctionCall - Check a direct function call for various correctness | |||
4540 | /// and safety properties not strictly enforced by the C type system. | |||
4541 | bool Sema::CheckFunctionCall(FunctionDecl *FDecl, CallExpr *TheCall, | |||
4542 | const FunctionProtoType *Proto) { | |||
4543 | bool IsMemberOperatorCall = isa<CXXOperatorCallExpr>(TheCall) && | |||
| ||||
4544 | isa<CXXMethodDecl>(FDecl); | |||
4545 | bool IsMemberFunction = isa<CXXMemberCallExpr>(TheCall) || | |||
4546 | IsMemberOperatorCall; | |||
4547 | VariadicCallType CallType = getVariadicCallType(FDecl, Proto, | |||
4548 | TheCall->getCallee()); | |||
4549 | Expr** Args = TheCall->getArgs(); | |||
4550 | unsigned NumArgs = TheCall->getNumArgs(); | |||
4551 | ||||
4552 | Expr *ImplicitThis = nullptr; | |||
4553 | if (IsMemberOperatorCall
| |||
4554 | // If this is a call to a member operator, hide the first argument | |||
4555 | // from checkCall. | |||
4556 | // FIXME: Our choice of AST representation here is less than ideal. | |||
4557 | ImplicitThis = Args[0]; | |||
4558 | ++Args; | |||
4559 | --NumArgs; | |||
4560 | } else if (IsMemberFunction
| |||
4561 | ImplicitThis = | |||
4562 | cast<CXXMemberCallExpr>(TheCall)->getImplicitObjectArgument(); | |||
4563 | ||||
4564 | checkCall(FDecl, Proto, ImplicitThis, llvm::makeArrayRef(Args, NumArgs), | |||
4565 | IsMemberFunction, TheCall->getRParenLoc(), | |||
4566 | TheCall->getCallee()->getSourceRange(), CallType); | |||
4567 | ||||
4568 | IdentifierInfo *FnInfo = FDecl->getIdentifier(); | |||
4569 | // None of the checks below are needed for functions that don't have | |||
4570 | // simple names (e.g., C++ conversion functions). | |||
4571 | if (!FnInfo) | |||
4572 | return false; | |||
4573 | ||||
4574 | CheckTCBEnforcement(TheCall, FDecl); | |||
4575 | ||||
4576 | CheckAbsoluteValueFunction(TheCall, FDecl); | |||
4577 | CheckMaxUnsignedZero(TheCall, FDecl); | |||
4578 | ||||
4579 | if (getLangOpts().ObjC) | |||
4580 | DiagnoseCStringFormatDirectiveInCFAPI(*this, FDecl, Args, NumArgs); | |||
4581 | ||||
4582 | unsigned CMId = FDecl->getMemoryFunctionKind(); | |||
4583 | ||||
4584 | // Handle memory setting and copying functions. | |||
4585 | switch (CMId) { | |||
4586 | case 0: | |||
4587 | return false; | |||
4588 | /* case Builtin::BIstrlcpy: // fallthrough | |||
4589 | case Builtin::BIstrlcat: | |||
4590 | CheckStrlcpycatArguments(TheCall, FnInfo); | |||
4591 | break;*/ | |||
4592 | case Builtin::BIstrncat: | |||
4593 | CheckStrncatArguments(TheCall, FnInfo); | |||
4594 | break; | |||
4595 | case Builtin::BIfree: | |||
4596 | CheckFreeArguments(TheCall); | |||
4597 | break; | |||
4598 | default: | |||
4599 | CheckMemaccessArguments(TheCall, CMId, FnInfo); | |||
4600 | } | |||
4601 | ||||
4602 | return false; | |||
4603 | } | |||
4604 | ||||
4605 | bool Sema::CheckObjCMethodCall(ObjCMethodDecl *Method, SourceLocation lbrac, | |||
4606 | ArrayRef<const Expr *> Args) { | |||
4607 | VariadicCallType CallType = | |||
4608 | Method->isVariadic() ? VariadicMethod : VariadicDoesNotApply; | |||
4609 | ||||
4610 | checkCall(Method, nullptr, /*ThisArg=*/nullptr, Args, | |||
4611 | /*IsMemberFunction=*/false, lbrac, Method->getSourceRange(), | |||
4612 | CallType); | |||
4613 | ||||
4614 | return false; | |||
4615 | } | |||
4616 | ||||
4617 | bool Sema::CheckPointerCall(NamedDecl *NDecl, CallExpr *TheCall, | |||
4618 | const FunctionProtoType *Proto) { | |||
4619 | QualType Ty; | |||
4620 | if (const auto *V = dyn_cast<VarDecl>(NDecl)) | |||
4621 | Ty = V->getType().getNonReferenceType(); | |||
4622 | else if (const auto *F = dyn_cast<FieldDecl>(NDecl)) | |||
4623 | Ty = F->getType().getNonReferenceType(); | |||
4624 | else | |||
4625 | return false; | |||
4626 | ||||
4627 | if (!Ty->isBlockPointerType() && !Ty->isFunctionPointerType() && | |||
4628 | !Ty->isFunctionProtoType()) | |||
4629 | return false; | |||
4630 | ||||
4631 | VariadicCallType CallType; | |||
4632 | if (!Proto || !Proto->isVariadic()) { | |||
4633 | CallType = VariadicDoesNotApply; | |||
4634 | } else if (Ty->isBlockPointerType()) { | |||
4635 | CallType = VariadicBlock; | |||
4636 | } else { // Ty->isFunctionPointerType() | |||
4637 | CallType = VariadicFunction; | |||
4638 | } | |||
4639 | ||||
4640 | checkCall(NDecl, Proto, /*ThisArg=*/nullptr, | |||
4641 | llvm::makeArrayRef(TheCall->getArgs(), TheCall->getNumArgs()), | |||
4642 | /*IsMemberFunction=*/false, TheCall->getRParenLoc(), | |||
4643 | TheCall->getCallee()->getSourceRange(), CallType); | |||
4644 | ||||
4645 | return false; | |||
4646 | } | |||
4647 | ||||
4648 | /// Checks function calls when a FunctionDecl or a NamedDecl is not available, | |||
4649 | /// such as function pointers returned from functions. | |||
4650 | bool Sema::CheckOtherCall(CallExpr *TheCall, const FunctionProtoType *Proto) { | |||
4651 | VariadicCallType CallType = getVariadicCallType(/*FDecl=*/nullptr, Proto, | |||
4652 | TheCall->getCallee()); | |||
4653 | checkCall(/*FDecl=*/nullptr, Proto, /*ThisArg=*/nullptr, | |||
4654 | llvm::makeArrayRef(TheCall->getArgs(), TheCall->getNumArgs()), | |||
4655 | /*IsMemberFunction=*/false, TheCall->getRParenLoc(), | |||
4656 | TheCall->getCallee()->getSourceRange(), CallType); | |||
4657 | ||||
4658 | return false; | |||
4659 | } | |||
4660 | ||||
4661 | static bool isValidOrderingForOp(int64_t Ordering, AtomicExpr::AtomicOp Op) { | |||
4662 | if (!llvm::isValidAtomicOrderingCABI(Ordering)) | |||
4663 | return false; | |||
4664 | ||||
4665 | auto OrderingCABI = (llvm::AtomicOrderingCABI)Ordering; | |||
4666 | switch (Op) { | |||
4667 | case AtomicExpr::AO__c11_atomic_init: | |||
4668 | case AtomicExpr::AO__opencl_atomic_init: | |||
4669 | llvm_unreachable("There is no ordering argument for an init")::llvm::llvm_unreachable_internal("There is no ordering argument for an init" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 4669); | |||
4670 | ||||
4671 | case AtomicExpr::AO__c11_atomic_load: | |||
4672 | case AtomicExpr::AO__opencl_atomic_load: | |||
4673 | case AtomicExpr::AO__atomic_load_n: | |||
4674 | case AtomicExpr::AO__atomic_load: | |||
4675 | return OrderingCABI != llvm::AtomicOrderingCABI::release && | |||
4676 | OrderingCABI != llvm::AtomicOrderingCABI::acq_rel; | |||
4677 | ||||
4678 | case AtomicExpr::AO__c11_atomic_store: | |||
4679 | case AtomicExpr::AO__opencl_atomic_store: | |||
4680 | case AtomicExpr::AO__atomic_store: | |||
4681 | case AtomicExpr::AO__atomic_store_n: | |||
4682 | return OrderingCABI != llvm::AtomicOrderingCABI::consume && | |||
4683 | OrderingCABI != llvm::AtomicOrderingCABI::acquire && | |||
4684 | OrderingCABI != llvm::AtomicOrderingCABI::acq_rel; | |||
4685 | ||||
4686 | default: | |||
4687 | return true; | |||
4688 | } | |||
4689 | } | |||
4690 | ||||
4691 | ExprResult Sema::SemaAtomicOpsOverloaded(ExprResult TheCallResult, | |||
4692 | AtomicExpr::AtomicOp Op) { | |||
4693 | CallExpr *TheCall = cast<CallExpr>(TheCallResult.get()); | |||
4694 | DeclRefExpr *DRE =cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts()); | |||
4695 | MultiExprArg Args{TheCall->getArgs(), TheCall->getNumArgs()}; | |||
4696 | return BuildAtomicExpr({TheCall->getBeginLoc(), TheCall->getEndLoc()}, | |||
4697 | DRE->getSourceRange(), TheCall->getRParenLoc(), Args, | |||
4698 | Op); | |||
4699 | } | |||
4700 | ||||
4701 | ExprResult Sema::BuildAtomicExpr(SourceRange CallRange, SourceRange ExprRange, | |||
4702 | SourceLocation RParenLoc, MultiExprArg Args, | |||
4703 | AtomicExpr::AtomicOp Op, | |||
4704 | AtomicArgumentOrder ArgOrder) { | |||
4705 | // All the non-OpenCL operations take one of the following forms. | |||
4706 | // The OpenCL operations take the __c11 forms with one extra argument for | |||
4707 | // synchronization scope. | |||
4708 | enum { | |||
4709 | // C __c11_atomic_init(A *, C) | |||
4710 | Init, | |||
4711 | ||||
4712 | // C __c11_atomic_load(A *, int) | |||
4713 | Load, | |||
4714 | ||||
4715 | // void __atomic_load(A *, CP, int) | |||
4716 | LoadCopy, | |||
4717 | ||||
4718 | // void __atomic_store(A *, CP, int) | |||
4719 | Copy, | |||
4720 | ||||
4721 | // C __c11_atomic_add(A *, M, int) | |||
4722 | Arithmetic, | |||
4723 | ||||
4724 | // C __atomic_exchange_n(A *, CP, int) | |||
4725 | Xchg, | |||
4726 | ||||
4727 | // void __atomic_exchange(A *, C *, CP, int) | |||
4728 | GNUXchg, | |||
4729 | ||||
4730 | // bool __c11_atomic_compare_exchange_strong(A *, C *, CP, int, int) | |||
4731 | C11CmpXchg, | |||
4732 | ||||
4733 | // bool __atomic_compare_exchange(A *, C *, CP, bool, int, int) | |||
4734 | GNUCmpXchg | |||
4735 | } Form = Init; | |||
4736 | ||||
4737 | const unsigned NumForm = GNUCmpXchg + 1; | |||
4738 | const unsigned NumArgs[] = { 2, 2, 3, 3, 3, 3, 4, 5, 6 }; | |||
4739 | const unsigned NumVals[] = { 1, 0, 1, 1, 1, 1, 2, 2, 3 }; | |||
4740 | // where: | |||
4741 | // C is an appropriate type, | |||
4742 | // A is volatile _Atomic(C) for __c11 builtins and is C for GNU builtins, | |||
4743 | // CP is C for __c11 builtins and GNU _n builtins and is C * otherwise, | |||
4744 | // M is C if C is an integer, and ptrdiff_t if C is a pointer, and | |||
4745 | // the int parameters are for orderings. | |||
4746 | ||||
4747 | static_assert(sizeof(NumArgs)/sizeof(NumArgs[0]) == NumForm | |||
4748 | && sizeof(NumVals)/sizeof(NumVals[0]) == NumForm, | |||
4749 | "need to update code for modified forms"); | |||
4750 | static_assert(AtomicExpr::AO__c11_atomic_init == 0 && | |||
4751 | AtomicExpr::AO__c11_atomic_fetch_min + 1 == | |||
4752 | AtomicExpr::AO__atomic_load, | |||
4753 | "need to update code for modified C11 atomics"); | |||
4754 | bool IsOpenCL = Op >= AtomicExpr::AO__opencl_atomic_init && | |||
4755 | Op <= AtomicExpr::AO__opencl_atomic_fetch_max; | |||
4756 | bool IsC11 = (Op >= AtomicExpr::AO__c11_atomic_init && | |||
4757 | Op <= AtomicExpr::AO__c11_atomic_fetch_min) || | |||
4758 | IsOpenCL; | |||
4759 | bool IsN = Op == AtomicExpr::AO__atomic_load_n || | |||
4760 | Op == AtomicExpr::AO__atomic_store_n || | |||
4761 | Op == AtomicExpr::AO__atomic_exchange_n || | |||
4762 | Op == AtomicExpr::AO__atomic_compare_exchange_n; | |||
4763 | bool IsAddSub = false; | |||
4764 | ||||
4765 | switch (Op) { | |||
4766 | case AtomicExpr::AO__c11_atomic_init: | |||
4767 | case AtomicExpr::AO__opencl_atomic_init: | |||
4768 | Form = Init; | |||
4769 | break; | |||
4770 | ||||
4771 | case AtomicExpr::AO__c11_atomic_load: | |||
4772 | case AtomicExpr::AO__opencl_atomic_load: | |||
4773 | case AtomicExpr::AO__atomic_load_n: | |||
4774 | Form = Load; | |||
4775 | break; | |||
4776 | ||||
4777 | case AtomicExpr::AO__atomic_load: | |||
4778 | Form = LoadCopy; | |||
4779 | break; | |||
4780 | ||||
4781 | case AtomicExpr::AO__c11_atomic_store: | |||
4782 | case AtomicExpr::AO__opencl_atomic_store: | |||
4783 | case AtomicExpr::AO__atomic_store: | |||
4784 | case AtomicExpr::AO__atomic_store_n: | |||
4785 | Form = Copy; | |||
4786 | break; | |||
4787 | ||||
4788 | case AtomicExpr::AO__c11_atomic_fetch_add: | |||
4789 | case AtomicExpr::AO__c11_atomic_fetch_sub: | |||
4790 | case AtomicExpr::AO__opencl_atomic_fetch_add: | |||
4791 | case AtomicExpr::AO__opencl_atomic_fetch_sub: | |||
4792 | case AtomicExpr::AO__atomic_fetch_add: | |||
4793 | case AtomicExpr::AO__atomic_fetch_sub: | |||
4794 | case AtomicExpr::AO__atomic_add_fetch: | |||
4795 | case AtomicExpr::AO__atomic_sub_fetch: | |||
4796 | IsAddSub = true; | |||
4797 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
4798 | case AtomicExpr::AO__c11_atomic_fetch_and: | |||
4799 | case AtomicExpr::AO__c11_atomic_fetch_or: | |||
4800 | case AtomicExpr::AO__c11_atomic_fetch_xor: | |||
4801 | case AtomicExpr::AO__opencl_atomic_fetch_and: | |||
4802 | case AtomicExpr::AO__opencl_atomic_fetch_or: | |||
4803 | case AtomicExpr::AO__opencl_atomic_fetch_xor: | |||
4804 | case AtomicExpr::AO__atomic_fetch_and: | |||
4805 | case AtomicExpr::AO__atomic_fetch_or: | |||
4806 | case AtomicExpr::AO__atomic_fetch_xor: | |||
4807 | case AtomicExpr::AO__atomic_fetch_nand: | |||
4808 | case AtomicExpr::AO__atomic_and_fetch: | |||
4809 | case AtomicExpr::AO__atomic_or_fetch: | |||
4810 | case AtomicExpr::AO__atomic_xor_fetch: | |||
4811 | case AtomicExpr::AO__atomic_nand_fetch: | |||
4812 | case AtomicExpr::AO__c11_atomic_fetch_min: | |||
4813 | case AtomicExpr::AO__c11_atomic_fetch_max: | |||
4814 | case AtomicExpr::AO__opencl_atomic_fetch_min: | |||
4815 | case AtomicExpr::AO__opencl_atomic_fetch_max: | |||
4816 | case AtomicExpr::AO__atomic_min_fetch: | |||
4817 | case AtomicExpr::AO__atomic_max_fetch: | |||
4818 | case AtomicExpr::AO__atomic_fetch_min: | |||
4819 | case AtomicExpr::AO__atomic_fetch_max: | |||
4820 | Form = Arithmetic; | |||
4821 | break; | |||
4822 | ||||
4823 | case AtomicExpr::AO__c11_atomic_exchange: | |||
4824 | case AtomicExpr::AO__opencl_atomic_exchange: | |||
4825 | case AtomicExpr::AO__atomic_exchange_n: | |||
4826 | Form = Xchg; | |||
4827 | break; | |||
4828 | ||||
4829 | case AtomicExpr::AO__atomic_exchange: | |||
4830 | Form = GNUXchg; | |||
4831 | break; | |||
4832 | ||||
4833 | case AtomicExpr::AO__c11_atomic_compare_exchange_strong: | |||
4834 | case AtomicExpr::AO__c11_atomic_compare_exchange_weak: | |||
4835 | case AtomicExpr::AO__opencl_atomic_compare_exchange_strong: | |||
4836 | case AtomicExpr::AO__opencl_atomic_compare_exchange_weak: | |||
4837 | Form = C11CmpXchg; | |||
4838 | break; | |||
4839 | ||||
4840 | case AtomicExpr::AO__atomic_compare_exchange: | |||
4841 | case AtomicExpr::AO__atomic_compare_exchange_n: | |||
4842 | Form = GNUCmpXchg; | |||
4843 | break; | |||
4844 | } | |||
4845 | ||||
4846 | unsigned AdjustedNumArgs = NumArgs[Form]; | |||
4847 | if (IsOpenCL && Op != AtomicExpr::AO__opencl_atomic_init) | |||
4848 | ++AdjustedNumArgs; | |||
4849 | // Check we have the right number of arguments. | |||
4850 | if (Args.size() < AdjustedNumArgs) { | |||
4851 | Diag(CallRange.getEnd(), diag::err_typecheck_call_too_few_args) | |||
4852 | << 0 << AdjustedNumArgs << static_cast<unsigned>(Args.size()) | |||
4853 | << ExprRange; | |||
4854 | return ExprError(); | |||
4855 | } else if (Args.size() > AdjustedNumArgs) { | |||
4856 | Diag(Args[AdjustedNumArgs]->getBeginLoc(), | |||
4857 | diag::err_typecheck_call_too_many_args) | |||
4858 | << 0 << AdjustedNumArgs << static_cast<unsigned>(Args.size()) | |||
4859 | << ExprRange; | |||
4860 | return ExprError(); | |||
4861 | } | |||
4862 | ||||
4863 | // Inspect the first argument of the atomic operation. | |||
4864 | Expr *Ptr = Args[0]; | |||
4865 | ExprResult ConvertedPtr = DefaultFunctionArrayLvalueConversion(Ptr); | |||
4866 | if (ConvertedPtr.isInvalid()) | |||
4867 | return ExprError(); | |||
4868 | ||||
4869 | Ptr = ConvertedPtr.get(); | |||
4870 | const PointerType *pointerType = Ptr->getType()->getAs<PointerType>(); | |||
4871 | if (!pointerType) { | |||
4872 | Diag(ExprRange.getBegin(), diag::err_atomic_builtin_must_be_pointer) | |||
4873 | << Ptr->getType() << Ptr->getSourceRange(); | |||
4874 | return ExprError(); | |||
4875 | } | |||
4876 | ||||
4877 | // For a __c11 builtin, this should be a pointer to an _Atomic type. | |||
4878 | QualType AtomTy = pointerType->getPointeeType(); // 'A' | |||
4879 | QualType ValType = AtomTy; // 'C' | |||
4880 | if (IsC11) { | |||
4881 | if (!AtomTy->isAtomicType()) { | |||
4882 | Diag(ExprRange.getBegin(), diag::err_atomic_op_needs_atomic) | |||
4883 | << Ptr->getType() << Ptr->getSourceRange(); | |||
4884 | return ExprError(); | |||
4885 | } | |||
4886 | if ((Form != Load && Form != LoadCopy && AtomTy.isConstQualified()) || | |||
4887 | AtomTy.getAddressSpace() == LangAS::opencl_constant) { | |||
4888 | Diag(ExprRange.getBegin(), diag::err_atomic_op_needs_non_const_atomic) | |||
4889 | << (AtomTy.isConstQualified() ? 0 : 1) << Ptr->getType() | |||
4890 | << Ptr->getSourceRange(); | |||
4891 | return ExprError(); | |||
4892 | } | |||
4893 | ValType = AtomTy->castAs<AtomicType>()->getValueType(); | |||
4894 | } else if (Form != Load && Form != LoadCopy) { | |||
4895 | if (ValType.isConstQualified()) { | |||
4896 | Diag(ExprRange.getBegin(), diag::err_atomic_op_needs_non_const_pointer) | |||
4897 | << Ptr->getType() << Ptr->getSourceRange(); | |||
4898 | return ExprError(); | |||
4899 | } | |||
4900 | } | |||
4901 | ||||
4902 | // For an arithmetic operation, the implied arithmetic must be well-formed. | |||
4903 | if (Form == Arithmetic) { | |||
4904 | // gcc does not enforce these rules for GNU atomics, but we do so for sanity. | |||
4905 | if (IsAddSub && !ValType->isIntegerType() | |||
4906 | && !ValType->isPointerType()) { | |||
4907 | Diag(ExprRange.getBegin(), diag::err_atomic_op_needs_atomic_int_or_ptr) | |||
4908 | << IsC11 << Ptr->getType() << Ptr->getSourceRange(); | |||
4909 | return ExprError(); | |||
4910 | } | |||
4911 | if (!IsAddSub && !ValType->isIntegerType()) { | |||
4912 | Diag(ExprRange.getBegin(), diag::err_atomic_op_needs_atomic_int) | |||
4913 | << IsC11 << Ptr->getType() << Ptr->getSourceRange(); | |||
4914 | return ExprError(); | |||
4915 | } | |||
4916 | if (IsC11 && ValType->isPointerType() && | |||
4917 | RequireCompleteType(Ptr->getBeginLoc(), ValType->getPointeeType(), | |||
4918 | diag::err_incomplete_type)) { | |||
4919 | return ExprError(); | |||
4920 | } | |||
4921 | } else if (IsN && !ValType->isIntegerType() && !ValType->isPointerType()) { | |||
4922 | // For __atomic_*_n operations, the value type must be a scalar integral or | |||
4923 | // pointer type which is 1, 2, 4, 8 or 16 bytes in length. | |||
4924 | Diag(ExprRange.getBegin(), diag::err_atomic_op_needs_atomic_int_or_ptr) | |||
4925 | << IsC11 << Ptr->getType() << Ptr->getSourceRange(); | |||
4926 | return ExprError(); | |||
4927 | } | |||
4928 | ||||
4929 | if (!IsC11 && !AtomTy.isTriviallyCopyableType(Context) && | |||
4930 | !AtomTy->isScalarType()) { | |||
4931 | // For GNU atomics, require a trivially-copyable type. This is not part of | |||
4932 | // the GNU atomics specification, but we enforce it for sanity. | |||
4933 | Diag(ExprRange.getBegin(), diag::err_atomic_op_needs_trivial_copy) | |||
4934 | << Ptr->getType() << Ptr->getSourceRange(); | |||
4935 | return ExprError(); | |||
4936 | } | |||
4937 | ||||
4938 | switch (ValType.getObjCLifetime()) { | |||
4939 | case Qualifiers::OCL_None: | |||
4940 | case Qualifiers::OCL_ExplicitNone: | |||
4941 | // okay | |||
4942 | break; | |||
4943 | ||||
4944 | case Qualifiers::OCL_Weak: | |||
4945 | case Qualifiers::OCL_Strong: | |||
4946 | case Qualifiers::OCL_Autoreleasing: | |||
4947 | // FIXME: Can this happen? By this point, ValType should be known | |||
4948 | // to be trivially copyable. | |||
4949 | Diag(ExprRange.getBegin(), diag::err_arc_atomic_ownership) | |||
4950 | << ValType << Ptr->getSourceRange(); | |||
4951 | return ExprError(); | |||
4952 | } | |||
4953 | ||||
4954 | // All atomic operations have an overload which takes a pointer to a volatile | |||
4955 | // 'A'. We shouldn't let the volatile-ness of the pointee-type inject itself | |||
4956 | // into the result or the other operands. Similarly atomic_load takes a | |||
4957 | // pointer to a const 'A'. | |||
4958 | ValType.removeLocalVolatile(); | |||
4959 | ValType.removeLocalConst(); | |||
4960 | QualType ResultType = ValType; | |||
4961 | if (Form == Copy || Form == LoadCopy || Form == GNUXchg || | |||
4962 | Form == Init) | |||
4963 | ResultType = Context.VoidTy; | |||
4964 | else if (Form == C11CmpXchg || Form == GNUCmpXchg) | |||
4965 | ResultType = Context.BoolTy; | |||
4966 | ||||
4967 | // The type of a parameter passed 'by value'. In the GNU atomics, such | |||
4968 | // arguments are actually passed as pointers. | |||
4969 | QualType ByValType = ValType; // 'CP' | |||
4970 | bool IsPassedByAddress = false; | |||
4971 | if (!IsC11 && !IsN) { | |||
4972 | ByValType = Ptr->getType(); | |||
4973 | IsPassedByAddress = true; | |||
4974 | } | |||
4975 | ||||
4976 | SmallVector<Expr *, 5> APIOrderedArgs; | |||
4977 | if (ArgOrder == Sema::AtomicArgumentOrder::AST) { | |||
4978 | APIOrderedArgs.push_back(Args[0]); | |||
4979 | switch (Form) { | |||
4980 | case Init: | |||
4981 | case Load: | |||
4982 | APIOrderedArgs.push_back(Args[1]); // Val1/Order | |||
4983 | break; | |||
4984 | case LoadCopy: | |||
4985 | case Copy: | |||
4986 | case Arithmetic: | |||
4987 | case Xchg: | |||
4988 | APIOrderedArgs.push_back(Args[2]); // Val1 | |||
4989 | APIOrderedArgs.push_back(Args[1]); // Order | |||
4990 | break; | |||
4991 | case GNUXchg: | |||
4992 | APIOrderedArgs.push_back(Args[2]); // Val1 | |||
4993 | APIOrderedArgs.push_back(Args[3]); // Val2 | |||
4994 | APIOrderedArgs.push_back(Args[1]); // Order | |||
4995 | break; | |||
4996 | case C11CmpXchg: | |||
4997 | APIOrderedArgs.push_back(Args[2]); // Val1 | |||
4998 | APIOrderedArgs.push_back(Args[4]); // Val2 | |||
4999 | APIOrderedArgs.push_back(Args[1]); // Order | |||
5000 | APIOrderedArgs.push_back(Args[3]); // OrderFail | |||
5001 | break; | |||
5002 | case GNUCmpXchg: | |||
5003 | APIOrderedArgs.push_back(Args[2]); // Val1 | |||
5004 | APIOrderedArgs.push_back(Args[4]); // Val2 | |||
5005 | APIOrderedArgs.push_back(Args[5]); // Weak | |||
5006 | APIOrderedArgs.push_back(Args[1]); // Order | |||
5007 | APIOrderedArgs.push_back(Args[3]); // OrderFail | |||
5008 | break; | |||
5009 | } | |||
5010 | } else | |||
5011 | APIOrderedArgs.append(Args.begin(), Args.end()); | |||
5012 | ||||
5013 | // The first argument's non-CV pointer type is used to deduce the type of | |||
5014 | // subsequent arguments, except for: | |||
5015 | // - weak flag (always converted to bool) | |||
5016 | // - memory order (always converted to int) | |||
5017 | // - scope (always converted to int) | |||
5018 | for (unsigned i = 0; i != APIOrderedArgs.size(); ++i) { | |||
5019 | QualType Ty; | |||
5020 | if (i < NumVals[Form] + 1) { | |||
5021 | switch (i) { | |||
5022 | case 0: | |||
5023 | // The first argument is always a pointer. It has a fixed type. | |||
5024 | // It is always dereferenced, a nullptr is undefined. | |||
5025 | CheckNonNullArgument(*this, APIOrderedArgs[i], ExprRange.getBegin()); | |||
5026 | // Nothing else to do: we already know all we want about this pointer. | |||
5027 | continue; | |||
5028 | case 1: | |||
5029 | // The second argument is the non-atomic operand. For arithmetic, this | |||
5030 | // is always passed by value, and for a compare_exchange it is always | |||
5031 | // passed by address. For the rest, GNU uses by-address and C11 uses | |||
5032 | // by-value. | |||
5033 | assert(Form != Load)((Form != Load) ? static_cast<void> (0) : __assert_fail ("Form != Load", "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 5033, __PRETTY_FUNCTION__)); | |||
5034 | if (Form == Init || (Form == Arithmetic && ValType->isIntegerType())) | |||
5035 | Ty = ValType; | |||
5036 | else if (Form == Copy || Form == Xchg) { | |||
5037 | if (IsPassedByAddress) { | |||
5038 | // The value pointer is always dereferenced, a nullptr is undefined. | |||
5039 | CheckNonNullArgument(*this, APIOrderedArgs[i], | |||
5040 | ExprRange.getBegin()); | |||
5041 | } | |||
5042 | Ty = ByValType; | |||
5043 | } else if (Form == Arithmetic) | |||
5044 | Ty = Context.getPointerDiffType(); | |||
5045 | else { | |||
5046 | Expr *ValArg = APIOrderedArgs[i]; | |||
5047 | // The value pointer is always dereferenced, a nullptr is undefined. | |||
5048 | CheckNonNullArgument(*this, ValArg, ExprRange.getBegin()); | |||
5049 | LangAS AS = LangAS::Default; | |||
5050 | // Keep address space of non-atomic pointer type. | |||
5051 | if (const PointerType *PtrTy = | |||
5052 | ValArg->getType()->getAs<PointerType>()) { | |||
5053 | AS = PtrTy->getPointeeType().getAddressSpace(); | |||
5054 | } | |||
5055 | Ty = Context.getPointerType( | |||
5056 | Context.getAddrSpaceQualType(ValType.getUnqualifiedType(), AS)); | |||
5057 | } | |||
5058 | break; | |||
5059 | case 2: | |||
5060 | // The third argument to compare_exchange / GNU exchange is the desired | |||
5061 | // value, either by-value (for the C11 and *_n variant) or as a pointer. | |||
5062 | if (IsPassedByAddress) | |||
5063 | CheckNonNullArgument(*this, APIOrderedArgs[i], ExprRange.getBegin()); | |||
5064 | Ty = ByValType; | |||
5065 | break; | |||
5066 | case 3: | |||
5067 | // The fourth argument to GNU compare_exchange is a 'weak' flag. | |||
5068 | Ty = Context.BoolTy; | |||
5069 | break; | |||
5070 | } | |||
5071 | } else { | |||
5072 | // The order(s) and scope are always converted to int. | |||
5073 | Ty = Context.IntTy; | |||
5074 | } | |||
5075 | ||||
5076 | InitializedEntity Entity = | |||
5077 | InitializedEntity::InitializeParameter(Context, Ty, false); | |||
5078 | ExprResult Arg = APIOrderedArgs[i]; | |||
5079 | Arg = PerformCopyInitialization(Entity, SourceLocation(), Arg); | |||
5080 | if (Arg.isInvalid()) | |||
5081 | return true; | |||
5082 | APIOrderedArgs[i] = Arg.get(); | |||
5083 | } | |||
5084 | ||||
5085 | // Permute the arguments into a 'consistent' order. | |||
5086 | SmallVector<Expr*, 5> SubExprs; | |||
5087 | SubExprs.push_back(Ptr); | |||
5088 | switch (Form) { | |||
5089 | case Init: | |||
5090 | // Note, AtomicExpr::getVal1() has a special case for this atomic. | |||
5091 | SubExprs.push_back(APIOrderedArgs[1]); // Val1 | |||
5092 | break; | |||
5093 | case Load: | |||
5094 | SubExprs.push_back(APIOrderedArgs[1]); // Order | |||
5095 | break; | |||
5096 | case LoadCopy: | |||
5097 | case Copy: | |||
5098 | case Arithmetic: | |||
5099 | case Xchg: | |||
5100 | SubExprs.push_back(APIOrderedArgs[2]); // Order | |||
5101 | SubExprs.push_back(APIOrderedArgs[1]); // Val1 | |||
5102 | break; | |||
5103 | case GNUXchg: | |||
5104 | // Note, AtomicExpr::getVal2() has a special case for this atomic. | |||
5105 | SubExprs.push_back(APIOrderedArgs[3]); // Order | |||
5106 | SubExprs.push_back(APIOrderedArgs[1]); // Val1 | |||
5107 | SubExprs.push_back(APIOrderedArgs[2]); // Val2 | |||
5108 | break; | |||
5109 | case C11CmpXchg: | |||
5110 | SubExprs.push_back(APIOrderedArgs[3]); // Order | |||
5111 | SubExprs.push_back(APIOrderedArgs[1]); // Val1 | |||
5112 | SubExprs.push_back(APIOrderedArgs[4]); // OrderFail | |||
5113 | SubExprs.push_back(APIOrderedArgs[2]); // Val2 | |||
5114 | break; | |||
5115 | case GNUCmpXchg: | |||
5116 | SubExprs.push_back(APIOrderedArgs[4]); // Order | |||
5117 | SubExprs.push_back(APIOrderedArgs[1]); // Val1 | |||
5118 | SubExprs.push_back(APIOrderedArgs[5]); // OrderFail | |||
5119 | SubExprs.push_back(APIOrderedArgs[2]); // Val2 | |||
5120 | SubExprs.push_back(APIOrderedArgs[3]); // Weak | |||
5121 | break; | |||
5122 | } | |||
5123 | ||||
5124 | if (SubExprs.size() >= 2 && Form != Init) { | |||
5125 | if (Optional<llvm::APSInt> Result = | |||
5126 | SubExprs[1]->getIntegerConstantExpr(Context)) | |||
5127 | if (!isValidOrderingForOp(Result->getSExtValue(), Op)) | |||
5128 | Diag(SubExprs[1]->getBeginLoc(), | |||
5129 | diag::warn_atomic_op_has_invalid_memory_order) | |||
5130 | << SubExprs[1]->getSourceRange(); | |||
5131 | } | |||
5132 | ||||
5133 | if (auto ScopeModel = AtomicExpr::getScopeModel(Op)) { | |||
5134 | auto *Scope = Args[Args.size() - 1]; | |||
5135 | if (Optional<llvm::APSInt> Result = | |||
5136 | Scope->getIntegerConstantExpr(Context)) { | |||
5137 | if (!ScopeModel->isValid(Result->getZExtValue())) | |||
5138 | Diag(Scope->getBeginLoc(), diag::err_atomic_op_has_invalid_synch_scope) | |||
5139 | << Scope->getSourceRange(); | |||
5140 | } | |||
5141 | SubExprs.push_back(Scope); | |||
5142 | } | |||
5143 | ||||
5144 | AtomicExpr *AE = new (Context) | |||
5145 | AtomicExpr(ExprRange.getBegin(), SubExprs, ResultType, Op, RParenLoc); | |||
5146 | ||||
5147 | if ((Op == AtomicExpr::AO__c11_atomic_load || | |||
5148 | Op == AtomicExpr::AO__c11_atomic_store || | |||
5149 | Op == AtomicExpr::AO__opencl_atomic_load || | |||
5150 | Op == AtomicExpr::AO__opencl_atomic_store ) && | |||
5151 | Context.AtomicUsesUnsupportedLibcall(AE)) | |||
5152 | Diag(AE->getBeginLoc(), diag::err_atomic_load_store_uses_lib) | |||
5153 | << ((Op == AtomicExpr::AO__c11_atomic_load || | |||
5154 | Op == AtomicExpr::AO__opencl_atomic_load) | |||
5155 | ? 0 | |||
5156 | : 1); | |||
5157 | ||||
5158 | if (ValType->isExtIntType()) { | |||
5159 | Diag(Ptr->getExprLoc(), diag::err_atomic_builtin_ext_int_prohibit); | |||
5160 | return ExprError(); | |||
5161 | } | |||
5162 | ||||
5163 | return AE; | |||
5164 | } | |||
5165 | ||||
5166 | /// checkBuiltinArgument - Given a call to a builtin function, perform | |||
5167 | /// normal type-checking on the given argument, updating the call in | |||
5168 | /// place. This is useful when a builtin function requires custom | |||
5169 | /// type-checking for some of its arguments but not necessarily all of | |||
5170 | /// them. | |||
5171 | /// | |||
5172 | /// Returns true on error. | |||
5173 | static bool checkBuiltinArgument(Sema &S, CallExpr *E, unsigned ArgIndex) { | |||
5174 | FunctionDecl *Fn = E->getDirectCallee(); | |||
5175 | assert(Fn && "builtin call without direct callee!")((Fn && "builtin call without direct callee!") ? static_cast <void> (0) : __assert_fail ("Fn && \"builtin call without direct callee!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 5175, __PRETTY_FUNCTION__)); | |||
5176 | ||||
5177 | ParmVarDecl *Param = Fn->getParamDecl(ArgIndex); | |||
5178 | InitializedEntity Entity = | |||
5179 | InitializedEntity::InitializeParameter(S.Context, Param); | |||
5180 | ||||
5181 | ExprResult Arg = E->getArg(0); | |||
5182 | Arg = S.PerformCopyInitialization(Entity, SourceLocation(), Arg); | |||
5183 | if (Arg.isInvalid()) | |||
5184 | return true; | |||
5185 | ||||
5186 | E->setArg(ArgIndex, Arg.get()); | |||
5187 | return false; | |||
5188 | } | |||
5189 | ||||
5190 | /// We have a call to a function like __sync_fetch_and_add, which is an | |||
5191 | /// overloaded function based on the pointer type of its first argument. | |||
5192 | /// The main BuildCallExpr routines have already promoted the types of | |||
5193 | /// arguments because all of these calls are prototyped as void(...). | |||
5194 | /// | |||
5195 | /// This function goes through and does final semantic checking for these | |||
5196 | /// builtins, as well as generating any warnings. | |||
5197 | ExprResult | |||
5198 | Sema::SemaBuiltinAtomicOverloaded(ExprResult TheCallResult) { | |||
5199 | CallExpr *TheCall = static_cast<CallExpr *>(TheCallResult.get()); | |||
5200 | Expr *Callee = TheCall->getCallee(); | |||
5201 | DeclRefExpr *DRE = cast<DeclRefExpr>(Callee->IgnoreParenCasts()); | |||
5202 | FunctionDecl *FDecl = cast<FunctionDecl>(DRE->getDecl()); | |||
5203 | ||||
5204 | // Ensure that we have at least one argument to do type inference from. | |||
5205 | if (TheCall->getNumArgs() < 1) { | |||
5206 | Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args_at_least) | |||
5207 | << 0 << 1 << TheCall->getNumArgs() << Callee->getSourceRange(); | |||
5208 | return ExprError(); | |||
5209 | } | |||
5210 | ||||
5211 | // Inspect the first argument of the atomic builtin. This should always be | |||
5212 | // a pointer type, whose element is an integral scalar or pointer type. | |||
5213 | // Because it is a pointer type, we don't have to worry about any implicit | |||
5214 | // casts here. | |||
5215 | // FIXME: We don't allow floating point scalars as input. | |||
5216 | Expr *FirstArg = TheCall->getArg(0); | |||
5217 | ExprResult FirstArgResult = DefaultFunctionArrayLvalueConversion(FirstArg); | |||
5218 | if (FirstArgResult.isInvalid()) | |||
5219 | return ExprError(); | |||
5220 | FirstArg = FirstArgResult.get(); | |||
5221 | TheCall->setArg(0, FirstArg); | |||
5222 | ||||
5223 | const PointerType *pointerType = FirstArg->getType()->getAs<PointerType>(); | |||
5224 | if (!pointerType) { | |||
5225 | Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer) | |||
5226 | << FirstArg->getType() << FirstArg->getSourceRange(); | |||
5227 | return ExprError(); | |||
5228 | } | |||
5229 | ||||
5230 | QualType ValType = pointerType->getPointeeType(); | |||
5231 | if (!ValType->isIntegerType() && !ValType->isAnyPointerType() && | |||
5232 | !ValType->isBlockPointerType()) { | |||
5233 | Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer_intptr) | |||
5234 | << FirstArg->getType() << FirstArg->getSourceRange(); | |||
5235 | return ExprError(); | |||
5236 | } | |||
5237 | ||||
5238 | if (ValType.isConstQualified()) { | |||
5239 | Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_cannot_be_const) | |||
5240 | << FirstArg->getType() << FirstArg->getSourceRange(); | |||
5241 | return ExprError(); | |||
5242 | } | |||
5243 | ||||
5244 | switch (ValType.getObjCLifetime()) { | |||
5245 | case Qualifiers::OCL_None: | |||
5246 | case Qualifiers::OCL_ExplicitNone: | |||
5247 | // okay | |||
5248 | break; | |||
5249 | ||||
5250 | case Qualifiers::OCL_Weak: | |||
5251 | case Qualifiers::OCL_Strong: | |||
5252 | case Qualifiers::OCL_Autoreleasing: | |||
5253 | Diag(DRE->getBeginLoc(), diag::err_arc_atomic_ownership) | |||
5254 | << ValType << FirstArg->getSourceRange(); | |||
5255 | return ExprError(); | |||
5256 | } | |||
5257 | ||||
5258 | // Strip any qualifiers off ValType. | |||
5259 | ValType = ValType.getUnqualifiedType(); | |||
5260 | ||||
5261 | // The majority of builtins return a value, but a few have special return | |||
5262 | // types, so allow them to override appropriately below. | |||
5263 | QualType ResultType = ValType; | |||
5264 | ||||
5265 | // We need to figure out which concrete builtin this maps onto. For example, | |||
5266 | // __sync_fetch_and_add with a 2 byte object turns into | |||
5267 | // __sync_fetch_and_add_2. | |||
5268 | #define BUILTIN_ROW(x) \ | |||
5269 | { Builtin::BI##x##_1, Builtin::BI##x##_2, Builtin::BI##x##_4, \ | |||
5270 | Builtin::BI##x##_8, Builtin::BI##x##_16 } | |||
5271 | ||||
5272 | static const unsigned BuiltinIndices[][5] = { | |||
5273 | BUILTIN_ROW(__sync_fetch_and_add), | |||
5274 | BUILTIN_ROW(__sync_fetch_and_sub), | |||
5275 | BUILTIN_ROW(__sync_fetch_and_or), | |||
5276 | BUILTIN_ROW(__sync_fetch_and_and), | |||
5277 | BUILTIN_ROW(__sync_fetch_and_xor), | |||
5278 | BUILTIN_ROW(__sync_fetch_and_nand), | |||
5279 | ||||
5280 | BUILTIN_ROW(__sync_add_and_fetch), | |||
5281 | BUILTIN_ROW(__sync_sub_and_fetch), | |||
5282 | BUILTIN_ROW(__sync_and_and_fetch), | |||
5283 | BUILTIN_ROW(__sync_or_and_fetch), | |||
5284 | BUILTIN_ROW(__sync_xor_and_fetch), | |||
5285 | BUILTIN_ROW(__sync_nand_and_fetch), | |||
5286 | ||||
5287 | BUILTIN_ROW(__sync_val_compare_and_swap), | |||
5288 | BUILTIN_ROW(__sync_bool_compare_and_swap), | |||
5289 | BUILTIN_ROW(__sync_lock_test_and_set), | |||
5290 | BUILTIN_ROW(__sync_lock_release), | |||
5291 | BUILTIN_ROW(__sync_swap) | |||
5292 | }; | |||
5293 | #undef BUILTIN_ROW | |||
5294 | ||||
5295 | // Determine the index of the size. | |||
5296 | unsigned SizeIndex; | |||
5297 | switch (Context.getTypeSizeInChars(ValType).getQuantity()) { | |||
5298 | case 1: SizeIndex = 0; break; | |||
5299 | case 2: SizeIndex = 1; break; | |||
5300 | case 4: SizeIndex = 2; break; | |||
5301 | case 8: SizeIndex = 3; break; | |||
5302 | case 16: SizeIndex = 4; break; | |||
5303 | default: | |||
5304 | Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_pointer_size) | |||
5305 | << FirstArg->getType() << FirstArg->getSourceRange(); | |||
5306 | return ExprError(); | |||
5307 | } | |||
5308 | ||||
5309 | // Each of these builtins has one pointer argument, followed by some number of | |||
5310 | // values (0, 1 or 2) followed by a potentially empty varags list of stuff | |||
5311 | // that we ignore. Find out which row of BuiltinIndices to read from as well | |||
5312 | // as the number of fixed args. | |||
5313 | unsigned BuiltinID = FDecl->getBuiltinID(); | |||
5314 | unsigned BuiltinIndex, NumFixed = 1; | |||
5315 | bool WarnAboutSemanticsChange = false; | |||
5316 | switch (BuiltinID) { | |||
5317 | default: llvm_unreachable("Unknown overloaded atomic builtin!")::llvm::llvm_unreachable_internal("Unknown overloaded atomic builtin!" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 5317); | |||
5318 | case Builtin::BI__sync_fetch_and_add: | |||
5319 | case Builtin::BI__sync_fetch_and_add_1: | |||
5320 | case Builtin::BI__sync_fetch_and_add_2: | |||
5321 | case Builtin::BI__sync_fetch_and_add_4: | |||
5322 | case Builtin::BI__sync_fetch_and_add_8: | |||
5323 | case Builtin::BI__sync_fetch_and_add_16: | |||
5324 | BuiltinIndex = 0; | |||
5325 | break; | |||
5326 | ||||
5327 | case Builtin::BI__sync_fetch_and_sub: | |||
5328 | case Builtin::BI__sync_fetch_and_sub_1: | |||
5329 | case Builtin::BI__sync_fetch_and_sub_2: | |||
5330 | case Builtin::BI__sync_fetch_and_sub_4: | |||
5331 | case Builtin::BI__sync_fetch_and_sub_8: | |||
5332 | case Builtin::BI__sync_fetch_and_sub_16: | |||
5333 | BuiltinIndex = 1; | |||
5334 | break; | |||
5335 | ||||
5336 | case Builtin::BI__sync_fetch_and_or: | |||
5337 | case Builtin::BI__sync_fetch_and_or_1: | |||
5338 | case Builtin::BI__sync_fetch_and_or_2: | |||
5339 | case Builtin::BI__sync_fetch_and_or_4: | |||
5340 | case Builtin::BI__sync_fetch_and_or_8: | |||
5341 | case Builtin::BI__sync_fetch_and_or_16: | |||
5342 | BuiltinIndex = 2; | |||
5343 | break; | |||
5344 | ||||
5345 | case Builtin::BI__sync_fetch_and_and: | |||
5346 | case Builtin::BI__sync_fetch_and_and_1: | |||
5347 | case Builtin::BI__sync_fetch_and_and_2: | |||
5348 | case Builtin::BI__sync_fetch_and_and_4: | |||
5349 | case Builtin::BI__sync_fetch_and_and_8: | |||
5350 | case Builtin::BI__sync_fetch_and_and_16: | |||
5351 | BuiltinIndex = 3; | |||
5352 | break; | |||
5353 | ||||
5354 | case Builtin::BI__sync_fetch_and_xor: | |||
5355 | case Builtin::BI__sync_fetch_and_xor_1: | |||
5356 | case Builtin::BI__sync_fetch_and_xor_2: | |||
5357 | case Builtin::BI__sync_fetch_and_xor_4: | |||
5358 | case Builtin::BI__sync_fetch_and_xor_8: | |||
5359 | case Builtin::BI__sync_fetch_and_xor_16: | |||
5360 | BuiltinIndex = 4; | |||
5361 | break; | |||
5362 | ||||
5363 | case Builtin::BI__sync_fetch_and_nand: | |||
5364 | case Builtin::BI__sync_fetch_and_nand_1: | |||
5365 | case Builtin::BI__sync_fetch_and_nand_2: | |||
5366 | case Builtin::BI__sync_fetch_and_nand_4: | |||
5367 | case Builtin::BI__sync_fetch_and_nand_8: | |||
5368 | case Builtin::BI__sync_fetch_and_nand_16: | |||
5369 | BuiltinIndex = 5; | |||
5370 | WarnAboutSemanticsChange = true; | |||
5371 | break; | |||
5372 | ||||
5373 | case Builtin::BI__sync_add_and_fetch: | |||
5374 | case Builtin::BI__sync_add_and_fetch_1: | |||
5375 | case Builtin::BI__sync_add_and_fetch_2: | |||
5376 | case Builtin::BI__sync_add_and_fetch_4: | |||
5377 | case Builtin::BI__sync_add_and_fetch_8: | |||
5378 | case Builtin::BI__sync_add_and_fetch_16: | |||
5379 | BuiltinIndex = 6; | |||
5380 | break; | |||
5381 | ||||
5382 | case Builtin::BI__sync_sub_and_fetch: | |||
5383 | case Builtin::BI__sync_sub_and_fetch_1: | |||
5384 | case Builtin::BI__sync_sub_and_fetch_2: | |||
5385 | case Builtin::BI__sync_sub_and_fetch_4: | |||
5386 | case Builtin::BI__sync_sub_and_fetch_8: | |||
5387 | case Builtin::BI__sync_sub_and_fetch_16: | |||
5388 | BuiltinIndex = 7; | |||
5389 | break; | |||
5390 | ||||
5391 | case Builtin::BI__sync_and_and_fetch: | |||
5392 | case Builtin::BI__sync_and_and_fetch_1: | |||
5393 | case Builtin::BI__sync_and_and_fetch_2: | |||
5394 | case Builtin::BI__sync_and_and_fetch_4: | |||
5395 | case Builtin::BI__sync_and_and_fetch_8: | |||
5396 | case Builtin::BI__sync_and_and_fetch_16: | |||
5397 | BuiltinIndex = 8; | |||
5398 | break; | |||
5399 | ||||
5400 | case Builtin::BI__sync_or_and_fetch: | |||
5401 | case Builtin::BI__sync_or_and_fetch_1: | |||
5402 | case Builtin::BI__sync_or_and_fetch_2: | |||
5403 | case Builtin::BI__sync_or_and_fetch_4: | |||
5404 | case Builtin::BI__sync_or_and_fetch_8: | |||
5405 | case Builtin::BI__sync_or_and_fetch_16: | |||
5406 | BuiltinIndex = 9; | |||
5407 | break; | |||
5408 | ||||
5409 | case Builtin::BI__sync_xor_and_fetch: | |||
5410 | case Builtin::BI__sync_xor_and_fetch_1: | |||
5411 | case Builtin::BI__sync_xor_and_fetch_2: | |||
5412 | case Builtin::BI__sync_xor_and_fetch_4: | |||
5413 | case Builtin::BI__sync_xor_and_fetch_8: | |||
5414 | case Builtin::BI__sync_xor_and_fetch_16: | |||
5415 | BuiltinIndex = 10; | |||
5416 | break; | |||
5417 | ||||
5418 | case Builtin::BI__sync_nand_and_fetch: | |||
5419 | case Builtin::BI__sync_nand_and_fetch_1: | |||
5420 | case Builtin::BI__sync_nand_and_fetch_2: | |||
5421 | case Builtin::BI__sync_nand_and_fetch_4: | |||
5422 | case Builtin::BI__sync_nand_and_fetch_8: | |||
5423 | case Builtin::BI__sync_nand_and_fetch_16: | |||
5424 | BuiltinIndex = 11; | |||
5425 | WarnAboutSemanticsChange = true; | |||
5426 | break; | |||
5427 | ||||
5428 | case Builtin::BI__sync_val_compare_and_swap: | |||
5429 | case Builtin::BI__sync_val_compare_and_swap_1: | |||
5430 | case Builtin::BI__sync_val_compare_and_swap_2: | |||
5431 | case Builtin::BI__sync_val_compare_and_swap_4: | |||
5432 | case Builtin::BI__sync_val_compare_and_swap_8: | |||
5433 | case Builtin::BI__sync_val_compare_and_swap_16: | |||
5434 | BuiltinIndex = 12; | |||
5435 | NumFixed = 2; | |||
5436 | break; | |||
5437 | ||||
5438 | case Builtin::BI__sync_bool_compare_and_swap: | |||
5439 | case Builtin::BI__sync_bool_compare_and_swap_1: | |||
5440 | case Builtin::BI__sync_bool_compare_and_swap_2: | |||
5441 | case Builtin::BI__sync_bool_compare_and_swap_4: | |||
5442 | case Builtin::BI__sync_bool_compare_and_swap_8: | |||
5443 | case Builtin::BI__sync_bool_compare_and_swap_16: | |||
5444 | BuiltinIndex = 13; | |||
5445 | NumFixed = 2; | |||
5446 | ResultType = Context.BoolTy; | |||
5447 | break; | |||
5448 | ||||
5449 | case Builtin::BI__sync_lock_test_and_set: | |||
5450 | case Builtin::BI__sync_lock_test_and_set_1: | |||
5451 | case Builtin::BI__sync_lock_test_and_set_2: | |||
5452 | case Builtin::BI__sync_lock_test_and_set_4: | |||
5453 | case Builtin::BI__sync_lock_test_and_set_8: | |||
5454 | case Builtin::BI__sync_lock_test_and_set_16: | |||
5455 | BuiltinIndex = 14; | |||
5456 | break; | |||
5457 | ||||
5458 | case Builtin::BI__sync_lock_release: | |||
5459 | case Builtin::BI__sync_lock_release_1: | |||
5460 | case Builtin::BI__sync_lock_release_2: | |||
5461 | case Builtin::BI__sync_lock_release_4: | |||
5462 | case Builtin::BI__sync_lock_release_8: | |||
5463 | case Builtin::BI__sync_lock_release_16: | |||
5464 | BuiltinIndex = 15; | |||
5465 | NumFixed = 0; | |||
5466 | ResultType = Context.VoidTy; | |||
5467 | break; | |||
5468 | ||||
5469 | case Builtin::BI__sync_swap: | |||
5470 | case Builtin::BI__sync_swap_1: | |||
5471 | case Builtin::BI__sync_swap_2: | |||
5472 | case Builtin::BI__sync_swap_4: | |||
5473 | case Builtin::BI__sync_swap_8: | |||
5474 | case Builtin::BI__sync_swap_16: | |||
5475 | BuiltinIndex = 16; | |||
5476 | break; | |||
5477 | } | |||
5478 | ||||
5479 | // Now that we know how many fixed arguments we expect, first check that we | |||
5480 | // have at least that many. | |||
5481 | if (TheCall->getNumArgs() < 1+NumFixed) { | |||
5482 | Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args_at_least) | |||
5483 | << 0 << 1 + NumFixed << TheCall->getNumArgs() | |||
5484 | << Callee->getSourceRange(); | |||
5485 | return ExprError(); | |||
5486 | } | |||
5487 | ||||
5488 | Diag(TheCall->getEndLoc(), diag::warn_atomic_implicit_seq_cst) | |||
5489 | << Callee->getSourceRange(); | |||
5490 | ||||
5491 | if (WarnAboutSemanticsChange) { | |||
5492 | Diag(TheCall->getEndLoc(), diag::warn_sync_fetch_and_nand_semantics_change) | |||
5493 | << Callee->getSourceRange(); | |||
5494 | } | |||
5495 | ||||
5496 | // Get the decl for the concrete builtin from this, we can tell what the | |||
5497 | // concrete integer type we should convert to is. | |||
5498 | unsigned NewBuiltinID = BuiltinIndices[BuiltinIndex][SizeIndex]; | |||
5499 | const char *NewBuiltinName = Context.BuiltinInfo.getName(NewBuiltinID); | |||
5500 | FunctionDecl *NewBuiltinDecl; | |||
5501 | if (NewBuiltinID == BuiltinID) | |||
5502 | NewBuiltinDecl = FDecl; | |||
5503 | else { | |||
5504 | // Perform builtin lookup to avoid redeclaring it. | |||
5505 | DeclarationName DN(&Context.Idents.get(NewBuiltinName)); | |||
5506 | LookupResult Res(*this, DN, DRE->getBeginLoc(), LookupOrdinaryName); | |||
5507 | LookupName(Res, TUScope, /*AllowBuiltinCreation=*/true); | |||
5508 | assert(Res.getFoundDecl())((Res.getFoundDecl()) ? static_cast<void> (0) : __assert_fail ("Res.getFoundDecl()", "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 5508, __PRETTY_FUNCTION__)); | |||
5509 | NewBuiltinDecl = dyn_cast<FunctionDecl>(Res.getFoundDecl()); | |||
5510 | if (!NewBuiltinDecl) | |||
5511 | return ExprError(); | |||
5512 | } | |||
5513 | ||||
5514 | // The first argument --- the pointer --- has a fixed type; we | |||
5515 | // deduce the types of the rest of the arguments accordingly. Walk | |||
5516 | // the remaining arguments, converting them to the deduced value type. | |||
5517 | for (unsigned i = 0; i != NumFixed; ++i) { | |||
5518 | ExprResult Arg = TheCall->getArg(i+1); | |||
5519 | ||||
5520 | // GCC does an implicit conversion to the pointer or integer ValType. This | |||
5521 | // can fail in some cases (1i -> int**), check for this error case now. | |||
5522 | // Initialize the argument. | |||
5523 | InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, | |||
5524 | ValType, /*consume*/ false); | |||
5525 | Arg = PerformCopyInitialization(Entity, SourceLocation(), Arg); | |||
5526 | if (Arg.isInvalid()) | |||
5527 | return ExprError(); | |||
5528 | ||||
5529 | // Okay, we have something that *can* be converted to the right type. Check | |||
5530 | // to see if there is a potentially weird extension going on here. This can | |||
5531 | // happen when you do an atomic operation on something like an char* and | |||
5532 | // pass in 42. The 42 gets converted to char. This is even more strange | |||
5533 | // for things like 45.123 -> char, etc. | |||
5534 | // FIXME: Do this check. | |||
5535 | TheCall->setArg(i+1, Arg.get()); | |||
5536 | } | |||
5537 | ||||
5538 | // Create a new DeclRefExpr to refer to the new decl. | |||
5539 | DeclRefExpr *NewDRE = DeclRefExpr::Create( | |||
5540 | Context, DRE->getQualifierLoc(), SourceLocation(), NewBuiltinDecl, | |||
5541 | /*enclosing*/ false, DRE->getLocation(), Context.BuiltinFnTy, | |||
5542 | DRE->getValueKind(), nullptr, nullptr, DRE->isNonOdrUse()); | |||
5543 | ||||
5544 | // Set the callee in the CallExpr. | |||
5545 | // FIXME: This loses syntactic information. | |||
5546 | QualType CalleePtrTy = Context.getPointerType(NewBuiltinDecl->getType()); | |||
5547 | ExprResult PromotedCall = ImpCastExprToType(NewDRE, CalleePtrTy, | |||
5548 | CK_BuiltinFnToFnPtr); | |||
5549 | TheCall->setCallee(PromotedCall.get()); | |||
5550 | ||||
5551 | // Change the result type of the call to match the original value type. This | |||
5552 | // is arbitrary, but the codegen for these builtins ins design to handle it | |||
5553 | // gracefully. | |||
5554 | TheCall->setType(ResultType); | |||
5555 | ||||
5556 | // Prohibit use of _ExtInt with atomic builtins. | |||
5557 | // The arguments would have already been converted to the first argument's | |||
5558 | // type, so only need to check the first argument. | |||
5559 | const auto *ExtIntValType = ValType->getAs<ExtIntType>(); | |||
5560 | if (ExtIntValType && !llvm::isPowerOf2_64(ExtIntValType->getNumBits())) { | |||
5561 | Diag(FirstArg->getExprLoc(), diag::err_atomic_builtin_ext_int_size); | |||
5562 | return ExprError(); | |||
5563 | } | |||
5564 | ||||
5565 | return TheCallResult; | |||
5566 | } | |||
5567 | ||||
5568 | /// SemaBuiltinNontemporalOverloaded - We have a call to | |||
5569 | /// __builtin_nontemporal_store or __builtin_nontemporal_load, which is an | |||
5570 | /// overloaded function based on the pointer type of its last argument. | |||
5571 | /// | |||
5572 | /// This function goes through and does final semantic checking for these | |||
5573 | /// builtins. | |||
5574 | ExprResult Sema::SemaBuiltinNontemporalOverloaded(ExprResult TheCallResult) { | |||
5575 | CallExpr *TheCall = (CallExpr *)TheCallResult.get(); | |||
5576 | DeclRefExpr *DRE = | |||
5577 | cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts()); | |||
5578 | FunctionDecl *FDecl = cast<FunctionDecl>(DRE->getDecl()); | |||
5579 | unsigned BuiltinID = FDecl->getBuiltinID(); | |||
5580 | assert((BuiltinID == Builtin::BI__builtin_nontemporal_store ||(((BuiltinID == Builtin::BI__builtin_nontemporal_store || BuiltinID == Builtin::BI__builtin_nontemporal_load) && "Unexpected nontemporal load/store builtin!" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == Builtin::BI__builtin_nontemporal_store || BuiltinID == Builtin::BI__builtin_nontemporal_load) && \"Unexpected nontemporal load/store builtin!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 5582, __PRETTY_FUNCTION__)) | |||
5581 | BuiltinID == Builtin::BI__builtin_nontemporal_load) &&(((BuiltinID == Builtin::BI__builtin_nontemporal_store || BuiltinID == Builtin::BI__builtin_nontemporal_load) && "Unexpected nontemporal load/store builtin!" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == Builtin::BI__builtin_nontemporal_store || BuiltinID == Builtin::BI__builtin_nontemporal_load) && \"Unexpected nontemporal load/store builtin!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 5582, __PRETTY_FUNCTION__)) | |||
5582 | "Unexpected nontemporal load/store builtin!")(((BuiltinID == Builtin::BI__builtin_nontemporal_store || BuiltinID == Builtin::BI__builtin_nontemporal_load) && "Unexpected nontemporal load/store builtin!" ) ? static_cast<void> (0) : __assert_fail ("(BuiltinID == Builtin::BI__builtin_nontemporal_store || BuiltinID == Builtin::BI__builtin_nontemporal_load) && \"Unexpected nontemporal load/store builtin!\"" , "/build/llvm-toolchain-snapshot-13~++20210223111116+16ede0956cb1/clang/lib/Sema/SemaChecking.cpp" , 5582, __PRETTY_FUNCTION__)); | |||
5583 | bool isStore = BuiltinID == Builtin::BI__builtin_nontemporal_store; | |||
5584 | unsigned numArgs = isStore ? 2 : 1; | |||
5585 | ||||
5586 | // Ensure that we have the proper number of arguments. | |||
5587 | if (checkArgCount(*this, TheCall, numArgs)) | |||
5588 | return ExprError(); | |||
5589 | ||||
5590 | // Inspect the last argument of the nontemporal builtin. This should always | |||
5591 | // be a pointer type, from which we imply the type of the memory access. | |||
5592 | // Because it is a pointer type, we don't have to worry about any implicit | |||
5593 | // casts here. | |||
5594 | Expr *PointerArg = TheCall->getArg(numArgs - 1); | |||
5595 | ExprResult PointerArgResult = | |||
5596 | DefaultFunctionArrayLvalueConversion(PointerArg); | |||
5597 | ||||
5598 | if (PointerArgResult.isInvalid()) | |||
5599 | return ExprError(); | |||
5600 | PointerArg = PointerArgResult.get(); | |||
5601 | TheCall->setArg(numArgs - 1, PointerArg); | |||
5602 | ||||
5603 | const PointerType *pointerType = PointerArg->getType()->getAs<PointerType>(); | |||
5604 | if (!pointerType) { | |||
5605 | Diag(DRE->getBeginLoc(), diag::err_nontemporal_builtin_must_be_pointer) | |||
5606 | << PointerArg->getType() << PointerArg->getSourceRange(); | |||
5607 | return ExprError(); | |||
5608 | } | |||
5609 | ||||
5610 | QualType ValType = pointerType->getPointeeType(); | |||
5611 | ||||
5612 | // Strip any qualifiers off ValType. | |||
5613 | ValType = ValType.getUnqualifiedType(); | |||
5614 | if (!ValType->isIntegerType() && !ValType->isAnyPointerType() && | |||
5615 | !ValType->isBlockPointerType() && !ValType->isFloatingType() && | |||
5616 | !ValType->isVectorType()) { | |||
5617 | Diag(DRE->getBeginLoc(), | |||
5618 | diag::err_nontemporal_builtin_must_be_pointer_intfltptr_or_vector) | |||
5619 | << PointerArg->getType() << PointerArg->getSourceRange(); | |||
5620 | return ExprError(); | |||
5621 | } | |||
5622 | ||||
5623 | if (!isStore) { | |||
5624 | TheCall->setType(ValType); | |||
5625 | return TheCallResult; | |||
5626 | } | |||
5627 | ||||
5628 | ExprResult ValArg = TheCall->getArg(0); | |||
5629 | InitializedEntity Entity = InitializedEntity::InitializeParameter( | |||
5630 | Context, ValType, /*consume*/ false); | |||
5631 | ValArg = PerformCopyInitialization(Entity, SourceLocation(), ValArg); | |||
5632 | if (ValArg.isInvalid()) | |||
5633 | return ExprError(); | |||
5634 | ||||
5635 | TheCall->setArg(0, ValArg.get()); | |||
5636 | TheCall->setType(Context.VoidTy); | |||
5637 | return TheCallResult; | |||
5638 | } | |||
5639 | ||||
5640 | /// CheckObjCString - Checks that the argument to the builtin | |||
5641 | /// CFString constructor is correct | |||
5642 | /// Note: It might also make sense to do the UTF-16 conversion here (would | |||
5643 | /// simplify the backend). | |||
5644 | bool Sema::CheckObjCString(Expr *Arg) { | |||
5645 | Arg = Arg->IgnoreParenCasts(); | |||
5646 | StringLiteral *Literal = dyn_cast<StringLiteral>(Arg); | |||
5647 | ||||
5648 | if (!Literal || !Literal->isAscii()) { | |||
5649 | Diag(Arg->getBeginLoc(), diag::err_cfstring_literal_not_string_constant) | |||
5650 | << Arg->getSourceRange(); | |||
5651 | return true; | |||
5652 | } | |||
5653 | ||||
5654 | if (Literal->containsNonAsciiOrNull()) { | |||
5655 | StringRef String = Literal->getString(); | |||
5656 | unsigned NumBytes = String.size(); | |||
5657 | SmallVector<llvm::UTF16, 128> ToBuf(NumBytes); | |||
5658 | const llvm::UTF8 *FromPtr = (const llvm::UTF8 *)String.data(); | |||
5659 | llvm::UTF16 *ToPtr = &ToBuf[0]; | |||
5660 | ||||
5661 | llvm::ConversionResult Result = | |||
5662 | llvm::ConvertUTF8toUTF16(&FromPtr, FromPtr + NumBytes, &ToPtr, | |||
5663 | ToPtr + NumBytes, llvm::strictConversion); | |||
5664 | // Check for conversion failure. | |||
5665 | if (Result != llvm::conversionOK) | |||
5666 | Diag(Arg->getBeginLoc(), diag::warn_cfstring_truncated) | |||
5667 | << Arg->getSourceRange(); | |||
5668 | } | |||
5669 | return false; | |||
5670 | } | |||
5671 | ||||
5672 | /// CheckObjCString - Checks that the format string argument to the os_log() | |||
5673 | /// and os_trace() functions is correct, and converts it to const char *. | |||
5674 | ExprResult Sema::CheckOSLogFormatStringArg(Expr *Arg) { | |||
5675 | Arg = Arg->IgnoreParenCasts(); | |||
5676 | auto *Literal = dyn_cast<StringLiteral>(Arg); | |||
5677 | if (!Literal) { | |||
5678 | if (auto *ObjcLiteral = dyn_cast<ObjCStringLiteral>(Arg)) { | |||
5679 | Literal = ObjcLiteral->getString(); | |||
5680 | } | |||
5681 | } | |||
5682 | ||||
5683 | if (!Literal || (!Literal->isAscii() && !Literal->isUTF8())) { | |||
5684 | return ExprError( | |||
5685 | Diag(Arg->getBeginLoc(), diag::err_os_log_format_not_string_constant) | |||
5686 | << Arg->getSourceRange()); | |||
5687 | } | |||
5688 | ||||
5689 | ExprResult Result(Literal); | |||
5690 | QualType ResultTy = Context.getPointerType(Context.CharTy.withConst()); | |||
5691 | InitializedEntity Entity = | |||
5692 | InitializedEntity::InitializeParameter(Context, ResultTy, false); | |||
5693 | Result = PerformCopyInitialization(Entity, SourceLocation(), Result); | |||
5694 | return Result; | |||
5695 | } | |||
5696 | ||||
5697 | /// Check that the user is calling the appropriate va_start builtin for the | |||
5698 | /// target and calling convention. | |||
5699 | static bool checkVAStartABI(Sema &S, unsigned BuiltinID, Expr *Fn) { | |||
5700 | const llvm::Triple &TT = S.Context.getTargetInfo().getTriple(); | |||
5701 | bool IsX64 = TT.getArch() == llvm::Triple::x86_64; | |||
5702 | bool IsAArch64 = (TT.getArch() == llvm::Triple::aarch64 || | |||
5703 | TT.getArch() == llvm::Triple::aarch64_32); | |||
5704 | bool IsWindows = TT.isOSWindows(); | |||
5705 | bool IsMSVAStart = BuiltinID == Builtin::BI__builtin_ms_va_start; | |||
5706 | if (IsX64 || IsAArch64) { | |||
5707 | CallingConv CC = CC_C; | |||
5708 | if (const FunctionDecl *FD = S.getCurFunctionDecl()) | |||
5709 | CC = FD->getType()->castAs<FunctionType>()->getCallConv(); | |||
5710 | if (IsMSVAStart) { | |||
5711 | // Don't allow this in System V ABI functions. | |||
5712 | if (CC == CC_X86_64SysV || (!IsWindows && CC != CC_Win64)) | |||
5713 | return S.Diag(Fn->getBeginLoc(), | |||
5714 | diag::err_ms_va_start_used_in_sysv_function); | |||
5715 | } else { | |||
5716 | // On x86-64/AArch64 Unix, don't allow this in Win64 ABI functions. | |||
5717 | // On x64 Windows, don't allow this in System V ABI functions. | |||
5718 | // (Yes, that means there's no corresponding way to support variadic | |||
5719 | // System V ABI functions on Windows.) | |||
5720 | if ((IsWindows && CC == CC_X86_64SysV) || | |||
5721 | (!IsWindows && CC == CC_Win64)) | |||
5722 | return S.Diag(Fn->getBeginLoc(), | |||
5723 | diag::err_va_start_used_in_wrong_abi_function) | |||
5724 | << !IsWindows; | |||
5725 | } | |||
5726 | return false; | |||
5727 | } | |||
5728 | ||||
5729 | if (IsMSVAStart) | |||
5730 | return S.Diag(Fn->getBeginLoc(), diag::err_builtin_x64_aarch64_only); | |||
5731 | return false; | |||
5732 | } | |||
5733 | ||||
5734 | static bool checkVAStartIsInVariadicFunction(Sema &S, Expr *Fn, | |||
5735 | ParmVarDecl **LastParam = nullptr) { | |||
5736 | // Determine whether the current function, block, or obj-c method is variadic | |||
5737 | // and get its parameter list. | |||
5738 | bool IsVariadic = false; | |||
5739 | ArrayRef<ParmVarDecl *> Params; | |||
5740 | DeclContext *Caller = S.CurContext; | |||
5741 | if (auto *Block = dyn_cast<BlockDecl>(Caller)) { | |||
5742 | IsVariadic = Block->isVariadic(); | |||
5743 | Params = Block->parameters(); | |||
5744 | } else if (auto *FD = dyn_cast<FunctionDecl>(Caller)) { | |||
5745 | IsVariadic = FD->isVariadic(); | |||
5746 | Params = FD->parameters(); | |||
5747 | } else if (auto *MD = dyn_cast<ObjCMethodDecl>(Caller)) { | |||
5748 | IsVariadic = MD->isVariadic(); | |||
5749 | // FIXME: This isn't correct for methods (results in bogus warning). | |||
5750 | Params = MD->parameters(); | |||
5751 | } else if (isa<CapturedDecl>(Caller)) { | |||
5752 | // We don't support va_start in a CapturedDecl. | |||
5753 | S.Diag(Fn->getBeginLoc(), diag::err_va_start_captured_stmt); | |||
5754 | return true; | |||
5755 | } else { | |||
5756 | // This must be some other declcontext that parses exprs. | |||
5757 | S.Diag(Fn->getBeginLoc(), diag::err_va_start_outside_function); | |||
5758 | return true; | |||
5759 | } | |||
5760 | ||||
5761 | if (!IsVariadic) { | |||
5762 | S.Diag(Fn->getBeginLoc(), diag::err_va_start_fixed_function); | |||
5763 | return true; | |||
5764 | } | |||
5765 | ||||
5766 | if (LastParam) | |||
5767 | *LastParam = Params.empty() ? nullptr : Params.back(); | |||
5768 | ||||
5769 | return false; | |||
5770 | } | |||
5771 | ||||
5772 | /// Check the arguments to '__builtin_va_start' or '__builtin_ms_va_start' | |||
5773 | /// for validity. Emit an error and return true on failure; return false | |||
5774 | /// on success. | |||
5775 | bool Sema::SemaBuiltinVAStart(unsigned BuiltinID, CallExpr *TheCall) { | |||
5776 | Expr *Fn = TheCall->getCallee(); | |||
5777 | ||||
5778 | if (checkVAStartABI(*this, BuiltinID, Fn)) | |||
5779 | return true; | |||
5780 | ||||
5781 | if (checkArgCount(*this, TheCall, 2)) | |||
5782 | return true; | |||
5783 | ||||
5784 | // Type-check the first argument normally. | |||
5785 | if (checkBuiltinArgument(*this, TheCall, 0)) | |||
5786 | return true; | |||
5787 | ||||
5788 | // Check that the current function is variadic, and get its last parameter. | |||
5789 | ParmVarDecl *LastParam; | |||
5790 | if (checkVAStartIsInVariadicFunction(*this, Fn, &LastParam)) | |||
5791 | return true; | |||
5792 | ||||
5793 | // Verify that the second argument to the builtin is the last argument of the | |||
5794 | // current function or method. | |||
5795 | bool SecondArgIsLastNamedArgument = false; | |||
5796 | const Expr *Arg = TheCall->getArg(1)->IgnoreParenCasts(); | |||
5797 | ||||
5798 | // These are valid if SecondArgIsLastNamedArgument is false after the next | |||
5799 | // block. | |||
5800 | QualType Type; | |||
5801 | SourceLocation ParamLoc; | |||
5802 | bool IsCRegister = false; | |||
5803 | ||||
5804 | if (const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(Arg)) { | |||
5805 | if (const ParmVarDecl *PV = dyn_cast<ParmVarDecl>(DR->getDecl())) { | |||
5806 | SecondArgIsLastNamedArgument = PV == LastParam; | |||
5807 | ||||
5808 | Type = PV->getType(); | |||
5809 | ParamLoc = PV->getLocation(); | |||
5810 | IsCRegister = | |||
5811 | PV->getStorageClass() == SC_Register && !getLangOpts().CPlusPlus; | |||
5812 | } | |||
5813 | } | |||
5814 | ||||
5815 | if (!SecondArgIsLastNamedArgument) | |||
5816 | Diag(TheCall->getArg(1)->getBeginLoc(), | |||
5817 | diag::warn_second_arg_of_va_start_not_last_named_param); | |||
5818 | else if (IsCRegister || Type->isReferenceType() || | |||
5819 | Type->isSpecificBuiltinType(BuiltinType::Float) || [=] { | |||
5820 | // Promotable integers are UB, but enumerations need a bit of | |||
5821 | // extra checking to see what their promotable type actually is. | |||
5822 | if (!Type->isPromotableIntegerType()) | |||
5823 | return false; | |||
5824 | if (!Type->isEnumeralType()) | |||
5825 | return true; | |||
5826 | const EnumDecl *ED = Type->castAs<EnumType>()->getDecl(); | |||
5827 | return !(ED && | |||
5828 | Context.typesAreCompatible(ED->getPromotionType(), Type)); | |||
5829 | }()) { | |||
5830 | unsigned Reason = 0; | |||
5831 | if (Type->isReferenceType()) Reason = 1; | |||
5832 | else if (IsCRegister) Reason = 2; | |||
5833 | Diag(Arg->getBeginLoc(), diag::warn_va_start_type_is_undefined) << Reason; | |||
5834 | Diag(ParamLoc, diag::note_parameter_type) << Type; | |||
5835 | } | |||
5836 | ||||
5837 | TheCall->setType(Context.VoidTy); | |||
5838 | return false; | |||
5839 | } | |||
5840 | ||||
5841 | bool Sema::SemaBuiltinVAStartARMMicrosoft(CallExpr *Call) { | |||
5842 | // void __va_start(va_list *ap, const char *named_addr, size_t slot_size, | |||
5843 | // const char *named_addr); | |||
5844 | ||||
5845 | Expr *Func = Call->getCallee(); | |||
5846 | ||||
5847 | if (Call->getNumArgs() < 3) | |||
5848 | return Diag(Call->getEndLoc(), | |||
5849 | diag::err_typecheck_call_too_few_args_at_least) | |||
5850 | << 0 /*function call*/ << 3 << Call->getNumArgs(); | |||
5851 | ||||
5852 | // Type-check the first argument normally. | |||
5853 | if (checkBuiltinArgument(*this, Call, 0)) | |||
5854 | return true; | |||
5855 | ||||
5856 | // Check that the current function is variadic. | |||
5857 | if (checkVAStartIsInVariadicFunction(*this, Func)) | |||
5858 | return true; | |||
5859 | ||||
5860 | // __va_start on Windows does not validate the parameter qualifiers | |||
5861 | ||||
5862 | const Expr *Arg1 = Call->getArg(1)->IgnoreParens(); | |||
5863 | const Type *Arg1Ty = Arg1->getType().getCanonicalType().getTypePtr(); | |||
5864 | ||||
5865 | const Expr *Arg2 = Call->getArg(2)->IgnoreParens(); | |||
5866 | const Type *Arg2Ty = Arg2->getType().getCanonicalType().getTypePtr(); | |||
5867 | ||||
5868 | const QualType &ConstCharPtrTy = | |||
5869 | Context.getPointerType(Context.CharTy.withConst()); | |||
5870 | if (!Arg1Ty->isPointerType() || | |||
5871 | Arg1Ty->getPointeeType().withoutLocalFastQualifiers() != Context.CharTy) | |||
5872 | Diag(Arg1->getBeginLoc(), diag::err_typecheck_convert_incompatible) | |||
5873 | << Arg1->getType() << ConstCharPtrTy << 1 /* different class */ | |||
5874 | << 0 /* qualifier difference */ | |||
5875 | << 3 /* parameter mismatch */ | |||
5876 | << 2 << Arg1->getType() << ConstCharPtrTy; | |||
5877 | ||||
5878 | const QualType SizeTy = Context.getSizeType(); | |||
5879 | if (Arg2Ty->getCanonicalTypeInternal().withoutLocalFastQualifiers() != SizeTy) | |||
5880 | Diag(Arg2->getBeginLoc(), diag::err_typecheck_convert_incompatible) | |||
5881 | << Arg2->getType() << SizeTy << 1 /* different class */ | |||
5882 | << 0 /* qualifier difference */ | |||
5883 | << 3 /* parameter mismatch */ | |||
5884 | << 3 << Arg2->getType() << SizeTy; | |||
5885 | ||||
5886 | return false; | |||
5887 | } | |||
5888 | ||||
5889 | /// SemaBuiltinUnorderedCompare - Handle functions like __builtin_isgreater and | |||
5890 | /// friends. This is declared to take (...), so we have to check everything. | |||
5891 | bool Sema::SemaBuiltinUnorderedCompare(CallExpr *TheCall) { | |||
5892 | if (checkArgCount(*this, TheCall, 2)) | |||
5893 | return |