LLVM 18.0.0git
TargetLibraryInfo.cpp
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1//===-- TargetLibraryInfo.cpp - Runtime library information ----------------==//
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 the TargetLibraryInfo class.
10//
11//===----------------------------------------------------------------------===//
12
13#include "llvm/Analysis/TargetLibraryInfo.h"
14#include "llvm/ADT/DenseMap.h"
15#include "llvm/ADT/SmallString.h"
16#include "llvm/IR/Constants.h"
17#include "llvm/InitializePasses.h"
18#include "llvm/Support/CommandLine.h"
19#include "llvm/TargetParser/Triple.h"
20using namespace llvm;
21
22static cl::opt<TargetLibraryInfoImpl::VectorLibrary> ClVectorLibrary(
23 "vector-library", cl::Hidden, cl::desc("Vector functions library"),
24 cl::init(TargetLibraryInfoImpl::NoLibrary),
25 cl::values(clEnumValN(TargetLibraryInfoImpl::NoLibrary, "none",
26 "No vector functions library"),
27 clEnumValN(TargetLibraryInfoImpl::Accelerate, "Accelerate",
28 "Accelerate framework"),
29 clEnumValN(TargetLibraryInfoImpl::DarwinLibSystemM,
30 "Darwin_libsystem_m", "Darwin libsystem_m"),
31 clEnumValN(TargetLibraryInfoImpl::LIBMVEC_X86, "LIBMVEC-X86",
32 "GLIBC Vector Math library"),
33 clEnumValN(TargetLibraryInfoImpl::MASSV, "MASSV",
34 "IBM MASS vector library"),
35 clEnumValN(TargetLibraryInfoImpl::SVML, "SVML",
36 "Intel SVML library"),
37 clEnumValN(TargetLibraryInfoImpl::SLEEFGNUABI, "sleefgnuabi",
38 "SIMD Library for Evaluating Elementary Functions"),
39 clEnumValN(TargetLibraryInfoImpl::ArmPL, "ArmPL",
40 "Arm Performance Libraries")));
41
42StringLiteral const TargetLibraryInfoImpl::StandardNames[LibFunc::NumLibFuncs] =
43 {
44#define TLI_DEFINE_STRING
45#include "llvm/Analysis/TargetLibraryInfo.def"
46};
47
48std::string VecDesc::getVectorFunctionABIVariantString() const {
49 assert(!VectorFnName.empty() && "Vector function name must not be empty.");
50 SmallString<256> Buffer;
51 llvm::raw_svector_ostream Out(Buffer);
52 Out << VABIPrefix << "_" << ScalarFnName << "(" << VectorFnName << ")";
53 return std::string(Out.str());
54}
55
56// Recognized types of library function arguments and return types.
57enum FuncArgTypeID : char {
58 Void = 0, // Must be zero.
59 Bool, // 8 bits on all targets
60 Int16,
61 Int32,
62 Int,
63 IntPlus, // Int or bigger.
64 Long, // Either 32 or 64 bits.
65 IntX, // Any integer type.
66 Int64,
67 LLong, // 64 bits on all targets.
68 SizeT, // size_t.
69 SSizeT, // POSIX ssize_t.
70 Flt, // IEEE float.
71 Dbl, // IEEE double.
72 LDbl, // Any floating type (TODO: tighten this up).
73 Floating, // Any floating type.
74 Ptr, // Any pointer type.
75 Struct, // Any struct type.
76 Ellip, // The ellipsis (...).
77 Same, // Same argument type as the previous one.
78};
79
80typedef std::array<FuncArgTypeID, 8> FuncProtoTy;
81
82static const FuncProtoTy Signatures[] = {
83#define TLI_DEFINE_SIG
84#include "llvm/Analysis/TargetLibraryInfo.def"
85};
86
87static_assert(sizeof Signatures / sizeof *Signatures == LibFunc::NumLibFuncs,
88 "Missing library function signatures");
89
90static bool hasSinCosPiStret(const Triple &T) {
91 // Only Darwin variants have _stret versions of combined trig functions.
92 if (!T.isOSDarwin())
93 return false;
94
95 // The ABI is rather complicated on x86, so don't do anything special there.
96 if (T.getArch() == Triple::x86)
97 return false;
98
99 if (T.isMacOSX() && T.isMacOSXVersionLT(10, 9))
100 return false;
101
102 if (T.isiOS() && T.isOSVersionLT(7, 0))
103 return false;
104
105 return true;
106}
107
108static bool hasBcmp(const Triple &TT) {
109 // Posix removed support from bcmp() in 2001, but the glibc and several
110 // implementations of the libc still have it.
111 if (TT.isOSLinux())
112 return TT.isGNUEnvironment() || TT.isMusl();
113 // Both NetBSD and OpenBSD are planning to remove the function. Windows does
114 // not have it.
115 return TT.isOSFreeBSD() || TT.isOSSolaris();
116}
117
118static bool isCallingConvCCompatible(CallingConv::ID CC, StringRef TT,
119 FunctionType *FuncTy) {
120 switch (CC) {
121 default:
122 return false;
123 case llvm::CallingConv::C:
124 return true;
125 case llvm::CallingConv::ARM_APCS:
126 case llvm::CallingConv::ARM_AAPCS:
127 case llvm::CallingConv::ARM_AAPCS_VFP: {
128
129 // The iOS ABI diverges from the standard in some cases, so for now don't
130 // try to simplify those calls.
131 if (Triple(TT).isiOS())
132 return false;
133
134 if (!FuncTy->getReturnType()->isPointerTy() &&
135 !FuncTy->getReturnType()->isIntegerTy() &&
136 !FuncTy->getReturnType()->isVoidTy())
137 return false;
138
139 for (auto *Param : FuncTy->params()) {
140 if (!Param->isPointerTy() && !Param->isIntegerTy())
141 return false;
142 }
143 return true;
144 }
145 }
146 return false;
147}
148
149bool TargetLibraryInfoImpl::isCallingConvCCompatible(CallBase *CI) {
150 return ::isCallingConvCCompatible(CI->getCallingConv(),
151 CI->getModule()->getTargetTriple(),
152 CI->getFunctionType());
153}
154
155bool TargetLibraryInfoImpl::isCallingConvCCompatible(Function *F) {
156 return ::isCallingConvCCompatible(F->getCallingConv(),
157 F->getParent()->getTargetTriple(),
158 F->getFunctionType());
159}
160
161/// Initialize the set of available library functions based on the specified
162/// target triple. This should be carefully written so that a missing target
163/// triple gets a sane set of defaults.
164static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
165 ArrayRef<StringLiteral> StandardNames) {
166 // Verify that the StandardNames array is in alphabetical order.
167 assert(
168 llvm::is_sorted(StandardNames,
169 [](StringRef LHS, StringRef RHS) { return LHS < RHS; }) &&
170 "TargetLibraryInfoImpl function names must be sorted");
171
172 // Set IO unlocked variants as unavailable
173 // Set them as available per system below
174 TLI.setUnavailable(LibFunc_getc_unlocked);
175 TLI.setUnavailable(LibFunc_getchar_unlocked);
176 TLI.setUnavailable(LibFunc_putc_unlocked);
177 TLI.setUnavailable(LibFunc_putchar_unlocked);
178 TLI.setUnavailable(LibFunc_fputc_unlocked);
179 TLI.setUnavailable(LibFunc_fgetc_unlocked);
180 TLI.setUnavailable(LibFunc_fread_unlocked);
181 TLI.setUnavailable(LibFunc_fwrite_unlocked);
182 TLI.setUnavailable(LibFunc_fputs_unlocked);
183 TLI.setUnavailable(LibFunc_fgets_unlocked);
184
185 bool ShouldExtI32Param, ShouldExtI32Return;
186 bool ShouldSignExtI32Param, ShouldSignExtI32Return;
187 TargetLibraryInfo::initExtensionsForTriple(ShouldExtI32Param,
188 ShouldExtI32Return, ShouldSignExtI32Param, ShouldSignExtI32Return, T);
189 TLI.setShouldExtI32Param(ShouldExtI32Param);
190 TLI.setShouldExtI32Return(ShouldExtI32Return);
191 TLI.setShouldSignExtI32Param(ShouldSignExtI32Param);
192 TLI.setShouldSignExtI32Return(ShouldSignExtI32Return);
193
194 // Let's assume by default that the size of int is 32 bits, unless the target
195 // is a 16-bit architecture because then it most likely is 16 bits. If that
196 // isn't true for a target those defaults should be overridden below.
197 TLI.setIntSize(T.isArch16Bit() ? 16 : 32);
198
199 // There is really no runtime library on AMDGPU, apart from
200 // __kmpc_alloc/free_shared.
201 if (T.isAMDGPU()) {
202 TLI.disableAllFunctions();
203 TLI.setAvailable(llvm::LibFunc___kmpc_alloc_shared);
204 TLI.setAvailable(llvm::LibFunc___kmpc_free_shared);
205 return;
206 }
207
208 // memset_pattern{4,8,16} is only available on iOS 3.0 and Mac OS X 10.5 and
209 // later. All versions of watchOS support it.
210 if (T.isMacOSX()) {
211 // available IO unlocked variants on Mac OS X
212 TLI.setAvailable(LibFunc_getc_unlocked);
213 TLI.setAvailable(LibFunc_getchar_unlocked);
214 TLI.setAvailable(LibFunc_putc_unlocked);
215 TLI.setAvailable(LibFunc_putchar_unlocked);
216 TLI.setUnavailable(LibFunc_memrchr);
217
218 if (T.isMacOSXVersionLT(10, 5)) {
219 TLI.setUnavailable(LibFunc_memset_pattern4);
220 TLI.setUnavailable(LibFunc_memset_pattern8);
221 TLI.setUnavailable(LibFunc_memset_pattern16);
222 }
223 } else if (T.isiOS()) {
224 if (T.isOSVersionLT(3, 0)) {
225 TLI.setUnavailable(LibFunc_memset_pattern4);
226 TLI.setUnavailable(LibFunc_memset_pattern8);
227 TLI.setUnavailable(LibFunc_memset_pattern16);
228 }
229 } else if (!T.isWatchOS()) {
230 TLI.setUnavailable(LibFunc_memset_pattern4);
231 TLI.setUnavailable(LibFunc_memset_pattern8);
232 TLI.setUnavailable(LibFunc_memset_pattern16);
233 }
234
235 if (!hasSinCosPiStret(T)) {
236 TLI.setUnavailable(LibFunc_sinpi);
237 TLI.setUnavailable(LibFunc_sinpif);
238 TLI.setUnavailable(LibFunc_cospi);
239 TLI.setUnavailable(LibFunc_cospif);
240 TLI.setUnavailable(LibFunc_sincospi_stret);
241 TLI.setUnavailable(LibFunc_sincospif_stret);
242 }
243
244 if (!hasBcmp(T))
245 TLI.setUnavailable(LibFunc_bcmp);
246
247 if (T.isMacOSX() && T.getArch() == Triple::x86 &&
248 !T.isMacOSXVersionLT(10, 7)) {
249 // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
250 // we don't care about) have two versions; on recent OSX, the one we want
251 // has a $UNIX2003 suffix. The two implementations are identical except
252 // for the return value in some edge cases. However, we don't want to
253 // generate code that depends on the old symbols.
254 TLI.setAvailableWithName(LibFunc_fwrite, "fwrite$UNIX2003");
255 TLI.setAvailableWithName(LibFunc_fputs, "fputs$UNIX2003");
256 }
257
258 // iprintf and friends are only available on XCore, TCE, and Emscripten.
259 if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce &&
260 T.getOS() != Triple::Emscripten) {
261 TLI.setUnavailable(LibFunc_iprintf);
262 TLI.setUnavailable(LibFunc_siprintf);
263 TLI.setUnavailable(LibFunc_fiprintf);
264 }
265
266 // __small_printf and friends are only available on Emscripten.
267 if (T.getOS() != Triple::Emscripten) {
268 TLI.setUnavailable(LibFunc_small_printf);
269 TLI.setUnavailable(LibFunc_small_sprintf);
270 TLI.setUnavailable(LibFunc_small_fprintf);
271 }
272
273 if (T.isOSWindows() && !T.isOSCygMing()) {
274 // XXX: The earliest documentation available at the moment is for VS2015/VC19:
275 // https://docs.microsoft.com/en-us/cpp/c-runtime-library/floating-point-support?view=vs-2015
276 // XXX: In order to use an MSVCRT older than VC19,
277 // the specific library version must be explicit in the target triple,
278 // e.g., x86_64-pc-windows-msvc18.
279 bool hasPartialC99 = true;
280 if (T.isKnownWindowsMSVCEnvironment()) {
281 VersionTuple Version = T.getEnvironmentVersion();
282 hasPartialC99 = (Version.getMajor() == 0 || Version.getMajor() >= 19);
283 }
284
285 // Latest targets support C89 math functions, in part.
286 bool isARM = (T.getArch() == Triple::aarch64 ||
287 T.getArch() == Triple::arm);
288 bool hasPartialFloat = (isARM ||
289 T.getArch() == Triple::x86_64);
290
291 // Win32 does not support float C89 math functions, in general.
292 if (!hasPartialFloat) {
293 TLI.setUnavailable(LibFunc_acosf);
294 TLI.setUnavailable(LibFunc_asinf);
295 TLI.setUnavailable(LibFunc_atan2f);
296 TLI.setUnavailable(LibFunc_atanf);
297 TLI.setUnavailable(LibFunc_ceilf);
298 TLI.setUnavailable(LibFunc_cosf);
299 TLI.setUnavailable(LibFunc_coshf);
300 TLI.setUnavailable(LibFunc_expf);
301 TLI.setUnavailable(LibFunc_floorf);
302 TLI.setUnavailable(LibFunc_fmodf);
303 TLI.setUnavailable(LibFunc_log10f);
304 TLI.setUnavailable(LibFunc_logf);
305 TLI.setUnavailable(LibFunc_modff);
306 TLI.setUnavailable(LibFunc_powf);
307 TLI.setUnavailable(LibFunc_remainderf);
308 TLI.setUnavailable(LibFunc_sinf);
309 TLI.setUnavailable(LibFunc_sinhf);
310 TLI.setUnavailable(LibFunc_sqrtf);
311 TLI.setUnavailable(LibFunc_tanf);
312 TLI.setUnavailable(LibFunc_tanhf);
313 }
314 if (!isARM)
315 TLI.setUnavailable(LibFunc_fabsf);
316 TLI.setUnavailable(LibFunc_frexpf);
317 TLI.setUnavailable(LibFunc_ldexpf);
318
319 // Win32 does not support long double C89 math functions.
320 TLI.setUnavailable(LibFunc_acosl);
321 TLI.setUnavailable(LibFunc_asinl);
322 TLI.setUnavailable(LibFunc_atan2l);
323 TLI.setUnavailable(LibFunc_atanl);
324 TLI.setUnavailable(LibFunc_ceill);
325 TLI.setUnavailable(LibFunc_cosl);
326 TLI.setUnavailable(LibFunc_coshl);
327 TLI.setUnavailable(LibFunc_expl);
328 TLI.setUnavailable(LibFunc_fabsl);
329 TLI.setUnavailable(LibFunc_floorl);
330 TLI.setUnavailable(LibFunc_fmodl);
331 TLI.setUnavailable(LibFunc_frexpl);
332 TLI.setUnavailable(LibFunc_ldexpl);
333 TLI.setUnavailable(LibFunc_log10l);
334 TLI.setUnavailable(LibFunc_logl);
335 TLI.setUnavailable(LibFunc_modfl);
336 TLI.setUnavailable(LibFunc_powl);
337 TLI.setUnavailable(LibFunc_remainderl);
338 TLI.setUnavailable(LibFunc_sinl);
339 TLI.setUnavailable(LibFunc_sinhl);
340 TLI.setUnavailable(LibFunc_sqrtl);
341 TLI.setUnavailable(LibFunc_tanl);
342 TLI.setUnavailable(LibFunc_tanhl);
343
344 // Win32 does not fully support C99 math functions.
345 if (!hasPartialC99) {
346 TLI.setUnavailable(LibFunc_acosh);
347 TLI.setUnavailable(LibFunc_acoshf);
348 TLI.setUnavailable(LibFunc_asinh);
349 TLI.setUnavailable(LibFunc_asinhf);
350 TLI.setUnavailable(LibFunc_atanh);
351 TLI.setUnavailable(LibFunc_atanhf);
352 TLI.setAvailableWithName(LibFunc_cabs, "_cabs");
353 TLI.setUnavailable(LibFunc_cabsf);
354 TLI.setUnavailable(LibFunc_cbrt);
355 TLI.setUnavailable(LibFunc_cbrtf);
356 TLI.setAvailableWithName(LibFunc_copysign, "_copysign");
357 TLI.setAvailableWithName(LibFunc_copysignf, "_copysignf");
358 TLI.setUnavailable(LibFunc_exp2);
359 TLI.setUnavailable(LibFunc_exp2f);
360 TLI.setUnavailable(LibFunc_expm1);
361 TLI.setUnavailable(LibFunc_expm1f);
362 TLI.setUnavailable(LibFunc_fmax);
363 TLI.setUnavailable(LibFunc_fmaxf);
364 TLI.setUnavailable(LibFunc_fmin);
365 TLI.setUnavailable(LibFunc_fminf);
366 TLI.setUnavailable(LibFunc_log1p);
367 TLI.setUnavailable(LibFunc_log1pf);
368 TLI.setUnavailable(LibFunc_log2);
369 TLI.setUnavailable(LibFunc_log2f);
370 TLI.setAvailableWithName(LibFunc_logb, "_logb");
371 if (hasPartialFloat)
372 TLI.setAvailableWithName(LibFunc_logbf, "_logbf");
373 else
374 TLI.setUnavailable(LibFunc_logbf);
375 TLI.setUnavailable(LibFunc_rint);
376 TLI.setUnavailable(LibFunc_rintf);
377 TLI.setUnavailable(LibFunc_round);
378 TLI.setUnavailable(LibFunc_roundf);
379 TLI.setUnavailable(LibFunc_trunc);
380 TLI.setUnavailable(LibFunc_truncf);
381 }
382
383 // Win32 does not support long double C99 math functions.
384 TLI.setUnavailable(LibFunc_acoshl);
385 TLI.setUnavailable(LibFunc_asinhl);
386 TLI.setUnavailable(LibFunc_atanhl);
387 TLI.setUnavailable(LibFunc_cabsl);
388 TLI.setUnavailable(LibFunc_cbrtl);
389 TLI.setUnavailable(LibFunc_copysignl);
390 TLI.setUnavailable(LibFunc_exp2l);
391 TLI.setUnavailable(LibFunc_expm1l);
392 TLI.setUnavailable(LibFunc_fmaxl);
393 TLI.setUnavailable(LibFunc_fminl);
394 TLI.setUnavailable(LibFunc_log1pl);
395 TLI.setUnavailable(LibFunc_log2l);
396 TLI.setUnavailable(LibFunc_logbl);
397 TLI.setUnavailable(LibFunc_nearbyintl);
398 TLI.setUnavailable(LibFunc_rintl);
399 TLI.setUnavailable(LibFunc_roundl);
400 TLI.setUnavailable(LibFunc_truncl);
401
402 // Win32 does not support these functions, but
403 // they are generally available on POSIX-compliant systems.
404 TLI.setUnavailable(LibFunc_access);
405 TLI.setUnavailable(LibFunc_chmod);
406 TLI.setUnavailable(LibFunc_closedir);
407 TLI.setUnavailable(LibFunc_fdopen);
408 TLI.setUnavailable(LibFunc_fileno);
409 TLI.setUnavailable(LibFunc_fseeko);
410 TLI.setUnavailable(LibFunc_fstat);
411 TLI.setUnavailable(LibFunc_ftello);
412 TLI.setUnavailable(LibFunc_gettimeofday);
413 TLI.setUnavailable(LibFunc_memccpy);
414 TLI.setUnavailable(LibFunc_mkdir);
415 TLI.setUnavailable(LibFunc_open);
416 TLI.setUnavailable(LibFunc_opendir);
417 TLI.setUnavailable(LibFunc_pclose);
418 TLI.setUnavailable(LibFunc_popen);
419 TLI.setUnavailable(LibFunc_read);
420 TLI.setUnavailable(LibFunc_rmdir);
421 TLI.setUnavailable(LibFunc_stat);
422 TLI.setUnavailable(LibFunc_strcasecmp);
423 TLI.setUnavailable(LibFunc_strncasecmp);
424 TLI.setUnavailable(LibFunc_unlink);
425 TLI.setUnavailable(LibFunc_utime);
426 TLI.setUnavailable(LibFunc_write);
427 }
428
429 if (T.isOSWindows() && !T.isWindowsCygwinEnvironment()) {
430 // These functions aren't available in either MSVC or MinGW environments.
431 TLI.setUnavailable(LibFunc_bcmp);
432 TLI.setUnavailable(LibFunc_bcopy);
433 TLI.setUnavailable(LibFunc_bzero);
434 TLI.setUnavailable(LibFunc_chown);
435 TLI.setUnavailable(LibFunc_ctermid);
436 TLI.setUnavailable(LibFunc_ffs);
437 TLI.setUnavailable(LibFunc_flockfile);
438 TLI.setUnavailable(LibFunc_fstatvfs);
439 TLI.setUnavailable(LibFunc_ftrylockfile);
440 TLI.setUnavailable(LibFunc_funlockfile);
441 TLI.setUnavailable(LibFunc_getitimer);
442 TLI.setUnavailable(LibFunc_getlogin_r);
443 TLI.setUnavailable(LibFunc_getpwnam);
444 TLI.setUnavailable(LibFunc_htonl);
445 TLI.setUnavailable(LibFunc_htons);
446 TLI.setUnavailable(LibFunc_lchown);
447 TLI.setUnavailable(LibFunc_lstat);
448 TLI.setUnavailable(LibFunc_memrchr);
449 TLI.setUnavailable(LibFunc_ntohl);
450 TLI.setUnavailable(LibFunc_ntohs);
451 TLI.setUnavailable(LibFunc_pread);
452 TLI.setUnavailable(LibFunc_pwrite);
453 TLI.setUnavailable(LibFunc_readlink);
454 TLI.setUnavailable(LibFunc_realpath);
455 TLI.setUnavailable(LibFunc_setitimer);
456 TLI.setUnavailable(LibFunc_statvfs);
457 TLI.setUnavailable(LibFunc_stpcpy);
458 TLI.setUnavailable(LibFunc_stpncpy);
459 TLI.setUnavailable(LibFunc_times);
460 TLI.setUnavailable(LibFunc_uname);
461 TLI.setUnavailable(LibFunc_unsetenv);
462 TLI.setUnavailable(LibFunc_utimes);
463 }
464
465 // Pick just one set of new/delete variants.
466 if (T.isOSMSVCRT()) {
467 // MSVC, doesn't have the Itanium new/delete.
468 TLI.setUnavailable(LibFunc_ZdaPv);
469 TLI.setUnavailable(LibFunc_ZdaPvRKSt9nothrow_t);
470 TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_t);
471 TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t);
472 TLI.setUnavailable(LibFunc_ZdaPvj);
473 TLI.setUnavailable(LibFunc_ZdaPvjSt11align_val_t);
474 TLI.setUnavailable(LibFunc_ZdaPvm);
475 TLI.setUnavailable(LibFunc_ZdaPvmSt11align_val_t);
476 TLI.setUnavailable(LibFunc_ZdlPv);
477 TLI.setUnavailable(LibFunc_ZdlPvRKSt9nothrow_t);
478 TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_t);
479 TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t);
480 TLI.setUnavailable(LibFunc_ZdlPvj);
481 TLI.setUnavailable(LibFunc_ZdlPvjSt11align_val_t);
482 TLI.setUnavailable(LibFunc_ZdlPvm);
483 TLI.setUnavailable(LibFunc_ZdlPvmSt11align_val_t);
484 TLI.setUnavailable(LibFunc_Znaj);
485 TLI.setUnavailable(LibFunc_ZnajRKSt9nothrow_t);
486 TLI.setUnavailable(LibFunc_ZnajSt11align_val_t);
487 TLI.setUnavailable(LibFunc_ZnajSt11align_val_tRKSt9nothrow_t);
488 TLI.setUnavailable(LibFunc_Znam);
489 TLI.setUnavailable(LibFunc_ZnamRKSt9nothrow_t);
490 TLI.setUnavailable(LibFunc_ZnamRKSt9nothrow_t12__hot_cold_t);
491 TLI.setUnavailable(LibFunc_ZnamSt11align_val_t);
492 TLI.setUnavailable(LibFunc_ZnamSt11align_val_tRKSt9nothrow_t);
493 TLI.setUnavailable(LibFunc_Znwj);
494 TLI.setUnavailable(LibFunc_ZnwjRKSt9nothrow_t);
495 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_t);
496 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t);
497 TLI.setUnavailable(LibFunc_Znwm);
498 TLI.setUnavailable(LibFunc_ZnwmRKSt9nothrow_t);
499 TLI.setUnavailable(LibFunc_ZnwmRKSt9nothrow_t12__hot_cold_t);
500 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_t);
501 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t);
502 TLI.setUnavailable(LibFunc_Znwm12__hot_cold_t);
503 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_t12__hot_cold_t);
504 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t12__hot_cold_t);
505 TLI.setUnavailable(LibFunc_Znam12__hot_cold_t);
506 TLI.setUnavailable(LibFunc_ZnamSt11align_val_t12__hot_cold_t);
507 TLI.setUnavailable(LibFunc_ZnamSt11align_val_tRKSt9nothrow_t12__hot_cold_t);
508 } else {
509 // Not MSVC, assume it's Itanium.
510 TLI.setUnavailable(LibFunc_msvc_new_int);
511 TLI.setUnavailable(LibFunc_msvc_new_int_nothrow);
512 TLI.setUnavailable(LibFunc_msvc_new_longlong);
513 TLI.setUnavailable(LibFunc_msvc_new_longlong_nothrow);
514 TLI.setUnavailable(LibFunc_msvc_delete_ptr32);
515 TLI.setUnavailable(LibFunc_msvc_delete_ptr32_nothrow);
516 TLI.setUnavailable(LibFunc_msvc_delete_ptr32_int);
517 TLI.setUnavailable(LibFunc_msvc_delete_ptr64);
518 TLI.setUnavailable(LibFunc_msvc_delete_ptr64_nothrow);
519 TLI.setUnavailable(LibFunc_msvc_delete_ptr64_longlong);
520 TLI.setUnavailable(LibFunc_msvc_new_array_int);
521 TLI.setUnavailable(LibFunc_msvc_new_array_int_nothrow);
522 TLI.setUnavailable(LibFunc_msvc_new_array_longlong);
523 TLI.setUnavailable(LibFunc_msvc_new_array_longlong_nothrow);
524 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32);
525 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_nothrow);
526 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_int);
527 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64);
528 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_nothrow);
529 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_longlong);
530 }
531
532 switch (T.getOS()) {
533 case Triple::MacOSX:
534 // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
535 // and their names are __exp10 and __exp10f. exp10l is not available on
536 // OS X or iOS.
537 TLI.setUnavailable(LibFunc_exp10l);
538 if (T.isMacOSXVersionLT(10, 9)) {
539 TLI.setUnavailable(LibFunc_exp10);
540 TLI.setUnavailable(LibFunc_exp10f);
541 } else {
542 TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
543 TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
544 }
545 break;
546 case Triple::IOS:
547 case Triple::TvOS:
548 case Triple::WatchOS:
549 TLI.setUnavailable(LibFunc_exp10l);
550 if (!T.isWatchOS() &&
551 (T.isOSVersionLT(7, 0) || (T.isOSVersionLT(9, 0) && T.isX86()))) {
552 TLI.setUnavailable(LibFunc_exp10);
553 TLI.setUnavailable(LibFunc_exp10f);
554 } else {
555 TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
556 TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
557 }
558 break;
559 case Triple::Linux:
560 // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
561 // buggy prior to glibc version 2.18. Until this version is widely deployed
562 // or we have a reasonable detection strategy, we cannot use exp10 reliably
563 // on Linux.
564 //
565 // Fall through to disable all of them.
566 [[fallthrough]];
567 default:
568 TLI.setUnavailable(LibFunc_exp10);
569 TLI.setUnavailable(LibFunc_exp10f);
570 TLI.setUnavailable(LibFunc_exp10l);
571 }
572
573 // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
574 // Linux (GLIBC):
575 // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
576 // http://svn.freebsd.org/base/head/lib/libc/string/ffsl.c
577 // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
578 switch (T.getOS()) {
579 case Triple::Darwin:
580 case Triple::MacOSX:
581 case Triple::IOS:
582 case Triple::TvOS:
583 case Triple::WatchOS:
584 case Triple::FreeBSD:
585 case Triple::Linux:
586 break;
587 default:
588 TLI.setUnavailable(LibFunc_ffsl);
589 }
590
591 // ffsll is available on at least FreeBSD and Linux (GLIBC):
592 // http://svn.freebsd.org/base/head/lib/libc/string/ffsll.c
593 // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
594 switch (T.getOS()) {
595 case Triple::Darwin:
596 case Triple::MacOSX:
597 case Triple::IOS:
598 case Triple::TvOS:
599 case Triple::WatchOS:
600 case Triple::FreeBSD:
601 case Triple::Linux:
602 break;
603 default:
604 TLI.setUnavailable(LibFunc_ffsll);
605 }
606
607 // The following functions are available on at least FreeBSD:
608 // http://svn.freebsd.org/base/head/lib/libc/string/fls.c
609 // http://svn.freebsd.org/base/head/lib/libc/string/flsl.c
610 // http://svn.freebsd.org/base/head/lib/libc/string/flsll.c
611 if (!T.isOSFreeBSD()) {
612 TLI.setUnavailable(LibFunc_fls);
613 TLI.setUnavailable(LibFunc_flsl);
614 TLI.setUnavailable(LibFunc_flsll);
615 }
616
617 // The following functions are only available on GNU/Linux (using glibc).
618 // Linux variants without glibc (eg: bionic, musl) may have some subset.
619 if (!T.isOSLinux() || !T.isGNUEnvironment()) {
620 TLI.setUnavailable(LibFunc_dunder_strdup);
621 TLI.setUnavailable(LibFunc_dunder_strtok_r);
622 TLI.setUnavailable(LibFunc_dunder_isoc99_scanf);
623 TLI.setUnavailable(LibFunc_dunder_isoc99_sscanf);
624 TLI.setUnavailable(LibFunc_under_IO_getc);
625 TLI.setUnavailable(LibFunc_under_IO_putc);
626 // But, Android and musl have memalign.
627 if (!T.isAndroid() && !T.isMusl())
628 TLI.setUnavailable(LibFunc_memalign);
629 TLI.setUnavailable(LibFunc_fopen64);
630 TLI.setUnavailable(LibFunc_fseeko64);
631 TLI.setUnavailable(LibFunc_fstat64);
632 TLI.setUnavailable(LibFunc_fstatvfs64);
633 TLI.setUnavailable(LibFunc_ftello64);
634 TLI.setUnavailable(LibFunc_lstat64);
635 TLI.setUnavailable(LibFunc_open64);
636 TLI.setUnavailable(LibFunc_stat64);
637 TLI.setUnavailable(LibFunc_statvfs64);
638 TLI.setUnavailable(LibFunc_tmpfile64);
639
640 // Relaxed math functions are included in math-finite.h on Linux (GLIBC).
641 // Note that math-finite.h is no longer supported by top-of-tree GLIBC,
642 // so we keep these functions around just so that they're recognized by
643 // the ConstantFolder.
644 TLI.setUnavailable(LibFunc_acos_finite);
645 TLI.setUnavailable(LibFunc_acosf_finite);
646 TLI.setUnavailable(LibFunc_acosl_finite);
647 TLI.setUnavailable(LibFunc_acosh_finite);
648 TLI.setUnavailable(LibFunc_acoshf_finite);
649 TLI.setUnavailable(LibFunc_acoshl_finite);
650 TLI.setUnavailable(LibFunc_asin_finite);
651 TLI.setUnavailable(LibFunc_asinf_finite);
652 TLI.setUnavailable(LibFunc_asinl_finite);
653 TLI.setUnavailable(LibFunc_atan2_finite);
654 TLI.setUnavailable(LibFunc_atan2f_finite);
655 TLI.setUnavailable(LibFunc_atan2l_finite);
656 TLI.setUnavailable(LibFunc_atanh_finite);
657 TLI.setUnavailable(LibFunc_atanhf_finite);
658 TLI.setUnavailable(LibFunc_atanhl_finite);
659 TLI.setUnavailable(LibFunc_cosh_finite);
660 TLI.setUnavailable(LibFunc_coshf_finite);
661 TLI.setUnavailable(LibFunc_coshl_finite);
662 TLI.setUnavailable(LibFunc_exp10_finite);
663 TLI.setUnavailable(LibFunc_exp10f_finite);
664 TLI.setUnavailable(LibFunc_exp10l_finite);
665 TLI.setUnavailable(LibFunc_exp2_finite);
666 TLI.setUnavailable(LibFunc_exp2f_finite);
667 TLI.setUnavailable(LibFunc_exp2l_finite);
668 TLI.setUnavailable(LibFunc_exp_finite);
669 TLI.setUnavailable(LibFunc_expf_finite);
670 TLI.setUnavailable(LibFunc_expl_finite);
671 TLI.setUnavailable(LibFunc_log10_finite);
672 TLI.setUnavailable(LibFunc_log10f_finite);
673 TLI.setUnavailable(LibFunc_log10l_finite);
674 TLI.setUnavailable(LibFunc_log2_finite);
675 TLI.setUnavailable(LibFunc_log2f_finite);
676 TLI.setUnavailable(LibFunc_log2l_finite);
677 TLI.setUnavailable(LibFunc_log_finite);
678 TLI.setUnavailable(LibFunc_logf_finite);
679 TLI.setUnavailable(LibFunc_logl_finite);
680 TLI.setUnavailable(LibFunc_pow_finite);
681 TLI.setUnavailable(LibFunc_powf_finite);
682 TLI.setUnavailable(LibFunc_powl_finite);
683 TLI.setUnavailable(LibFunc_sinh_finite);
684 TLI.setUnavailable(LibFunc_sinhf_finite);
685 TLI.setUnavailable(LibFunc_sinhl_finite);
686 TLI.setUnavailable(LibFunc_sqrt_finite);
687 TLI.setUnavailable(LibFunc_sqrtf_finite);
688 TLI.setUnavailable(LibFunc_sqrtl_finite);
689 }
690
691 if ((T.isOSLinux() && T.isGNUEnvironment()) ||
692 (T.isAndroid() && !T.isAndroidVersionLT(28))) {
693 // available IO unlocked variants on GNU/Linux and Android P or later
694 TLI.setAvailable(LibFunc_getc_unlocked);
695 TLI.setAvailable(LibFunc_getchar_unlocked);
696 TLI.setAvailable(LibFunc_putc_unlocked);
697 TLI.setAvailable(LibFunc_putchar_unlocked);
698 TLI.setAvailable(LibFunc_fputc_unlocked);
699 TLI.setAvailable(LibFunc_fgetc_unlocked);
700 TLI.setAvailable(LibFunc_fread_unlocked);
701 TLI.setAvailable(LibFunc_fwrite_unlocked);
702 TLI.setAvailable(LibFunc_fputs_unlocked);
703 TLI.setAvailable(LibFunc_fgets_unlocked);
704 }
705
706 if (T.isAndroid() && T.isAndroidVersionLT(21)) {
707 TLI.setUnavailable(LibFunc_stpcpy);
708 TLI.setUnavailable(LibFunc_stpncpy);
709 }
710
711 if (T.isPS()) {
712 // PS4/PS5 do have memalign.
713 TLI.setAvailable(LibFunc_memalign);
714
715 // PS4/PS5 do not have new/delete with "unsigned int" size parameter;
716 // they only have the "unsigned long" versions.
717 TLI.setUnavailable(LibFunc_ZdaPvj);
718 TLI.setUnavailable(LibFunc_ZdaPvjSt11align_val_t);
719 TLI.setUnavailable(LibFunc_ZdlPvj);
720 TLI.setUnavailable(LibFunc_ZdlPvjSt11align_val_t);
721 TLI.setUnavailable(LibFunc_Znaj);
722 TLI.setUnavailable(LibFunc_ZnajRKSt9nothrow_t);
723 TLI.setUnavailable(LibFunc_ZnajSt11align_val_t);
724 TLI.setUnavailable(LibFunc_ZnajSt11align_val_tRKSt9nothrow_t);
725 TLI.setUnavailable(LibFunc_Znwj);
726 TLI.setUnavailable(LibFunc_ZnwjRKSt9nothrow_t);
727 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_t);
728 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t);
729
730 // None of the *_chk functions.
731 TLI.setUnavailable(LibFunc_memccpy_chk);
732 TLI.setUnavailable(LibFunc_memcpy_chk);
733 TLI.setUnavailable(LibFunc_memmove_chk);
734 TLI.setUnavailable(LibFunc_mempcpy_chk);
735 TLI.setUnavailable(LibFunc_memset_chk);
736 TLI.setUnavailable(LibFunc_snprintf_chk);
737 TLI.setUnavailable(LibFunc_sprintf_chk);
738 TLI.setUnavailable(LibFunc_stpcpy_chk);
739 TLI.setUnavailable(LibFunc_stpncpy_chk);
740 TLI.setUnavailable(LibFunc_strcat_chk);
741 TLI.setUnavailable(LibFunc_strcpy_chk);
742 TLI.setUnavailable(LibFunc_strlcat_chk);
743 TLI.setUnavailable(LibFunc_strlcpy_chk);
744 TLI.setUnavailable(LibFunc_strlen_chk);
745 TLI.setUnavailable(LibFunc_strncat_chk);
746 TLI.setUnavailable(LibFunc_strncpy_chk);
747 TLI.setUnavailable(LibFunc_vsnprintf_chk);
748 TLI.setUnavailable(LibFunc_vsprintf_chk);
749
750 // Various Posix system functions.
751 TLI.setUnavailable(LibFunc_access);
752 TLI.setUnavailable(LibFunc_chmod);
753 TLI.setUnavailable(LibFunc_chown);
754 TLI.setUnavailable(LibFunc_closedir);
755 TLI.setUnavailable(LibFunc_ctermid);
756 TLI.setUnavailable(LibFunc_execl);
757 TLI.setUnavailable(LibFunc_execle);
758 TLI.setUnavailable(LibFunc_execlp);
759 TLI.setUnavailable(LibFunc_execv);
760 TLI.setUnavailable(LibFunc_execvP);
761 TLI.setUnavailable(LibFunc_execve);
762 TLI.setUnavailable(LibFunc_execvp);
763 TLI.setUnavailable(LibFunc_execvpe);
764 TLI.setUnavailable(LibFunc_fork);
765 TLI.setUnavailable(LibFunc_fstat);
766 TLI.setUnavailable(LibFunc_fstatvfs);
767 TLI.setUnavailable(LibFunc_getenv);
768 TLI.setUnavailable(LibFunc_getitimer);
769 TLI.setUnavailable(LibFunc_getlogin_r);
770 TLI.setUnavailable(LibFunc_getpwnam);
771 TLI.setUnavailable(LibFunc_gettimeofday);
772 TLI.setUnavailable(LibFunc_lchown);
773 TLI.setUnavailable(LibFunc_lstat);
774 TLI.setUnavailable(LibFunc_mkdir);
775 TLI.setUnavailable(LibFunc_open);
776 TLI.setUnavailable(LibFunc_opendir);
777 TLI.setUnavailable(LibFunc_pclose);
778 TLI.setUnavailable(LibFunc_popen);
779 TLI.setUnavailable(LibFunc_pread);
780 TLI.setUnavailable(LibFunc_pwrite);
781 TLI.setUnavailable(LibFunc_read);
782 TLI.setUnavailable(LibFunc_readlink);
783 TLI.setUnavailable(LibFunc_realpath);
784 TLI.setUnavailable(LibFunc_rename);
785 TLI.setUnavailable(LibFunc_rmdir);
786 TLI.setUnavailable(LibFunc_setitimer);
787 TLI.setUnavailable(LibFunc_stat);
788 TLI.setUnavailable(LibFunc_statvfs);
789 TLI.setUnavailable(LibFunc_system);
790 TLI.setUnavailable(LibFunc_times);
791 TLI.setUnavailable(LibFunc_tmpfile);
792 TLI.setUnavailable(LibFunc_unlink);
793 TLI.setUnavailable(LibFunc_uname);
794 TLI.setUnavailable(LibFunc_unsetenv);
795 TLI.setUnavailable(LibFunc_utime);
796 TLI.setUnavailable(LibFunc_utimes);
797 TLI.setUnavailable(LibFunc_valloc);
798 TLI.setUnavailable(LibFunc_write);
799
800 // Miscellaneous other functions not provided.
801 TLI.setUnavailable(LibFunc_atomic_load);
802 TLI.setUnavailable(LibFunc_atomic_store);
803 TLI.setUnavailable(LibFunc___kmpc_alloc_shared);
804 TLI.setUnavailable(LibFunc___kmpc_free_shared);
805 TLI.setUnavailable(LibFunc_dunder_strndup);
806 TLI.setUnavailable(LibFunc_bcmp);
807 TLI.setUnavailable(LibFunc_bcopy);
808 TLI.setUnavailable(LibFunc_bzero);
809 TLI.setUnavailable(LibFunc_cabs);
810 TLI.setUnavailable(LibFunc_cabsf);
811 TLI.setUnavailable(LibFunc_cabsl);
812 TLI.setUnavailable(LibFunc_ffs);
813 TLI.setUnavailable(LibFunc_flockfile);
814 TLI.setUnavailable(LibFunc_fseeko);
815 TLI.setUnavailable(LibFunc_ftello);
816 TLI.setUnavailable(LibFunc_ftrylockfile);
817 TLI.setUnavailable(LibFunc_funlockfile);
818 TLI.setUnavailable(LibFunc_htonl);
819 TLI.setUnavailable(LibFunc_htons);
820 TLI.setUnavailable(LibFunc_isascii);
821 TLI.setUnavailable(LibFunc_memccpy);
822 TLI.setUnavailable(LibFunc_mempcpy);
823 TLI.setUnavailable(LibFunc_memrchr);
824 TLI.setUnavailable(LibFunc_ntohl);
825 TLI.setUnavailable(LibFunc_ntohs);
826 TLI.setUnavailable(LibFunc_reallocf);
827 TLI.setUnavailable(LibFunc_roundeven);
828 TLI.setUnavailable(LibFunc_roundevenf);
829 TLI.setUnavailable(LibFunc_roundevenl);
830 TLI.setUnavailable(LibFunc_stpcpy);
831 TLI.setUnavailable(LibFunc_stpncpy);
832 TLI.setUnavailable(LibFunc_strlcat);
833 TLI.setUnavailable(LibFunc_strlcpy);
834 TLI.setUnavailable(LibFunc_strndup);
835 TLI.setUnavailable(LibFunc_strnlen);
836 TLI.setUnavailable(LibFunc_toascii);
837 }
838
839 // As currently implemented in clang, NVPTX code has no standard library to
840 // speak of. Headers provide a standard-ish library implementation, but many
841 // of the signatures are wrong -- for example, many libm functions are not
842 // extern "C".
843 //
844 // libdevice, an IR library provided by nvidia, is linked in by the front-end,
845 // but only used functions are provided to llvm. Moreover, most of the
846 // functions in libdevice don't map precisely to standard library functions.
847 //
848 // FIXME: Having no standard library prevents e.g. many fastmath
849 // optimizations, so this situation should be fixed.
850 if (T.isNVPTX()) {
851 TLI.disableAllFunctions();
852 TLI.setAvailable(LibFunc_nvvm_reflect);
853 TLI.setAvailable(llvm::LibFunc_malloc);
854 TLI.setAvailable(llvm::LibFunc_free);
855
856 // TODO: We could enable the following two according to [0] but we haven't
857 // done an evaluation wrt. the performance implications.
858 // [0]
859 // https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#dynamic-global-memory-allocation-and-operations
860 //
861 // TLI.setAvailable(llvm::LibFunc_memcpy);
862 // TLI.setAvailable(llvm::LibFunc_memset);
863
864 TLI.setAvailable(llvm::LibFunc___kmpc_alloc_shared);
865 TLI.setAvailable(llvm::LibFunc___kmpc_free_shared);
866 } else {
867 TLI.setUnavailable(LibFunc_nvvm_reflect);
868 }
869
870 // These vec_malloc/free routines are only available on AIX.
871 if (!T.isOSAIX()) {
872 TLI.setUnavailable(LibFunc_vec_calloc);
873 TLI.setUnavailable(LibFunc_vec_malloc);
874 TLI.setUnavailable(LibFunc_vec_realloc);
875 TLI.setUnavailable(LibFunc_vec_free);
876 }
877
878 TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary, T);
879}
880
881TargetLibraryInfoImpl::TargetLibraryInfoImpl() {
882 // Default to everything being available.
883 memset(AvailableArray, -1, sizeof(AvailableArray));
884
885 initialize(*this, Triple(), StandardNames);
886}
887
888TargetLibraryInfoImpl::TargetLibraryInfoImpl(const Triple &T) {
889 // Default to everything being available.
890 memset(AvailableArray, -1, sizeof(AvailableArray));
891
892 initialize(*this, T, StandardNames);
893}
894
895TargetLibraryInfoImpl::TargetLibraryInfoImpl(const TargetLibraryInfoImpl &TLI)
896 : CustomNames(TLI.CustomNames), ShouldExtI32Param(TLI.ShouldExtI32Param),
897 ShouldExtI32Return(TLI.ShouldExtI32Return),
898 ShouldSignExtI32Param(TLI.ShouldSignExtI32Param),
899 ShouldSignExtI32Return(TLI.ShouldSignExtI32Return),
900 SizeOfInt(TLI.SizeOfInt) {
901 memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
902 VectorDescs = TLI.VectorDescs;
903 ScalarDescs = TLI.ScalarDescs;
904}
905
906TargetLibraryInfoImpl::TargetLibraryInfoImpl(TargetLibraryInfoImpl &&TLI)
907 : CustomNames(std::move(TLI.CustomNames)),
908 ShouldExtI32Param(TLI.ShouldExtI32Param),
909 ShouldExtI32Return(TLI.ShouldExtI32Return),
910 ShouldSignExtI32Param(TLI.ShouldSignExtI32Param),
911 ShouldSignExtI32Return(TLI.ShouldSignExtI32Return),
912 SizeOfInt(TLI.SizeOfInt) {
913 std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
914 AvailableArray);
915 VectorDescs = TLI.VectorDescs;
916 ScalarDescs = TLI.ScalarDescs;
917}
918
919TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(const TargetLibraryInfoImpl &TLI) {
920 CustomNames = TLI.CustomNames;
921 ShouldExtI32Param = TLI.ShouldExtI32Param;
922 ShouldExtI32Return = TLI.ShouldExtI32Return;
923 ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
924 ShouldSignExtI32Return = TLI.ShouldSignExtI32Return;
925 SizeOfInt = TLI.SizeOfInt;
926 memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
927 return *this;
928}
929
930TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(TargetLibraryInfoImpl &&TLI) {
931 CustomNames = std::move(TLI.CustomNames);
932 ShouldExtI32Param = TLI.ShouldExtI32Param;
933 ShouldExtI32Return = TLI.ShouldExtI32Return;
934 ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
935 ShouldSignExtI32Return = TLI.ShouldSignExtI32Return;
936 SizeOfInt = TLI.SizeOfInt;
937 std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
938 AvailableArray);
939 return *this;
940}
941
942static StringRef sanitizeFunctionName(StringRef funcName) {
943 // Filter out empty names and names containing null bytes, those can't be in
944 // our table.
945 if (funcName.empty() || funcName.contains('\0'))
946 return StringRef();
947
948 // Check for \01 prefix that is used to mangle __asm declarations and
949 // strip it if present.
950 return GlobalValue::dropLLVMManglingEscape(funcName);
951}
952
953static DenseMap<StringRef, LibFunc>
954buildIndexMap(ArrayRef<StringLiteral> StandardNames) {
955 DenseMap<StringRef, LibFunc> Indices;
956 unsigned Idx = 0;
957 Indices.reserve(LibFunc::NumLibFuncs);
958 for (const auto &Func : StandardNames)
959 Indices[Func] = static_cast<LibFunc>(Idx++);
960 return Indices;
961}
962
963bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName, LibFunc &F) const {
964 funcName = sanitizeFunctionName(funcName);
965 if (funcName.empty())
966 return false;
967
968 static const DenseMap<StringRef, LibFunc> Indices =
969 buildIndexMap(StandardNames);
970
971 if (auto Loc = Indices.find(funcName); Loc != Indices.end()) {
972 F = Loc->second;
973 return true;
974 }
975 return false;
976}
977
978// Return true if ArgTy matches Ty.
979
980static bool matchType(FuncArgTypeID ArgTy, const Type *Ty, unsigned IntBits,
981 unsigned SizeTBits) {
982 switch (ArgTy) {
983 case Void:
984 return Ty->isVoidTy();
985 case Bool:
986 return Ty->isIntegerTy(8);
987 case Int16:
988 return Ty->isIntegerTy(16);
989 case Int32:
990 return Ty->isIntegerTy(32);
991 case Int:
992 return Ty->isIntegerTy(IntBits);
993 case IntPlus:
994 return Ty->isIntegerTy() && Ty->getPrimitiveSizeInBits() >= IntBits;
995 case IntX:
996 return Ty->isIntegerTy();
997 case Long:
998 // TODO: Figure out and use long size.
999 return Ty->isIntegerTy() && Ty->getPrimitiveSizeInBits() >= IntBits;
1000 case Int64:
1001 return Ty->isIntegerTy(64);
1002 case LLong:
1003 return Ty->isIntegerTy(64);
1004 case SizeT:
1005 case SSizeT:
1006 return Ty->isIntegerTy(SizeTBits);
1007 case Flt:
1008 return Ty->isFloatTy();
1009 case Dbl:
1010 return Ty->isDoubleTy();
1011 // TODO: Tighten this up.
1012 case LDbl:
1013 return Ty->isFloatingPointTy();
1014 case Floating:
1015 return Ty->isFloatingPointTy();
1016 case Ptr:
1017 return Ty->isPointerTy();
1018 case Struct:
1019 return Ty->isStructTy();
1020 default:
1021 break;
1022 }
1023
1024 llvm_unreachable("Invalid type");
1025}
1026
1027bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy,
1028 LibFunc F,
1029 const Module &M) const {
1030 unsigned NumParams = FTy.getNumParams();
1031
1032 switch (F) {
1033 // Special handling for <complex.h> functions:
1034 case LibFunc_cabs:
1035 case LibFunc_cabsf:
1036 case LibFunc_cabsl: {
1037 Type *RetTy = FTy.getReturnType();
1038 if (!RetTy->isFloatingPointTy())
1039 return false;
1040
1041 Type *ParamTy = FTy.getParamType(0);
1042 // NOTE: These prototypes are target specific and currently support
1043 // "complex" passed as an array or discrete real & imaginary parameters.
1044 // Add other calling conventions to enable libcall optimizations.
1045 if (NumParams == 1)
1046 return (ParamTy->isArrayTy() && ParamTy->getArrayNumElements() == 2 &&
1047 ParamTy->getArrayElementType() == RetTy);
1048 else if (NumParams == 2)
1049 return ParamTy == RetTy && FTy.getParamType(1) == RetTy;
1050
1051 return false;
1052 }
1053 // Special handling for the sincospi functions that return either
1054 // a struct or vector:
1055 case LibFunc_sincospi_stret:
1056 case LibFunc_sincospif_stret: {
1057 if (NumParams != 1)
1058 return false;
1059
1060 Type *RetTy = FTy.getReturnType();
1061 Type *ParamTy = FTy.getParamType(0);
1062 if (auto *Ty = dyn_cast<StructType>(RetTy)) {
1063 if (Ty->getNumElements() != 2)
1064 return false;
1065 return (Ty->getElementType(0) == ParamTy &&
1066 Ty->getElementType(1) == ParamTy);
1067 }
1068
1069 if (auto *Ty = dyn_cast<FixedVectorType>(RetTy)) {
1070 if (Ty->getNumElements() != 2)
1071 return false;
1072 return Ty->getElementType() == ParamTy;
1073 }
1074
1075 return false;
1076 }
1077
1078 default:
1079 break;
1080 }
1081
1082 unsigned IntBits = getIntSize();
1083 unsigned SizeTBits = getSizeTSize(M);
1084 unsigned Idx = 0;
1085
1086 // Iterate over the type ids in the function prototype, matching each
1087 // against the function's type FTy, starting with its return type.
1088 // Return true if both match in number and kind, inclduing the ellipsis.
1089 Type *Ty = FTy.getReturnType(), *LastTy = Ty;
1090 const auto &ProtoTypes = Signatures[F];
1091 for (auto TyID : ProtoTypes) {
1092 if (Idx && TyID == Void)
1093 // Except in the first position where it designates the function's
1094 // return type Void ends the argument list.
1095 break;
1096
1097 if (TyID == Ellip) {
1098 // The ellipsis ends the protoype list but is not a part of FTy's
1099 // argument list. Except when it's last it must be followed by
1100 // Void.
1101 assert(Idx == ProtoTypes.size() - 1 || ProtoTypes[Idx + 1] == Void);
1102 return FTy.isFunctionVarArg();
1103 }
1104
1105 if (TyID == Same) {
1106 assert(Idx != 0 && "Type ID 'Same' must not be first!");
1107 if (Ty != LastTy)
1108 return false;
1109 } else {
1110 if (!Ty || !matchType(TyID, Ty, IntBits, SizeTBits))
1111 return false;
1112 LastTy = Ty;
1113 }
1114
1115 if (Idx == NumParams) {
1116 // There's at least one and at most two more type ids than there are
1117 // arguments in FTy's argument list.
1118 Ty = nullptr;
1119 ++Idx;
1120 continue;
1121 }
1122
1123 Ty = FTy.getParamType(Idx++);
1124 }
1125
1126 // Return success only if all entries on both lists have been processed
1127 // and the function is not a variadic one.
1128 return Idx == NumParams + 1 && !FTy.isFunctionVarArg();
1129}
1130
1131bool TargetLibraryInfoImpl::getLibFunc(const Function &FDecl,
1132 LibFunc &F) const {
1133 // Intrinsics don't overlap w/libcalls; if our module has a large number of
1134 // intrinsics, this ends up being an interesting compile time win since we
1135 // avoid string normalization and comparison.
1136 if (FDecl.isIntrinsic()) return false;
1137
1138 const Module *M = FDecl.getParent();
1139 assert(M && "Expecting FDecl to be connected to a Module.");
1140
1141 if (FDecl.LibFuncCache == Function::UnknownLibFunc)
1142 if (!getLibFunc(FDecl.getName(), FDecl.LibFuncCache))
1143 FDecl.LibFuncCache = NotLibFunc;
1144
1145 if (FDecl.LibFuncCache == NotLibFunc)
1146 return false;
1147
1148 F = FDecl.LibFuncCache;
1149 return isValidProtoForLibFunc(*FDecl.getFunctionType(), F, *M);
1150}
1151
1152void TargetLibraryInfoImpl::disableAllFunctions() {
1153 memset(AvailableArray, 0, sizeof(AvailableArray));
1154}
1155
1156static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) {
1157 return LHS.getScalarFnName() < RHS.getScalarFnName();
1158}
1159
1160static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) {
1161 return LHS.getVectorFnName() < RHS.getVectorFnName();
1162}
1163
1164static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) {
1165 return LHS.getScalarFnName() < S;
1166}
1167
1168void TargetLibraryInfoImpl::addVectorizableFunctions(ArrayRef<VecDesc> Fns) {
1169 llvm::append_range(VectorDescs, Fns);
1170 llvm::sort(VectorDescs, compareByScalarFnName);
1171
1172 llvm::append_range(ScalarDescs, Fns);
1173 llvm::sort(ScalarDescs, compareByVectorFnName);
1174}
1175
1176void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib(
1177 enum VectorLibrary VecLib, const llvm::Triple &TargetTriple) {
1178 switch (VecLib) {
1179 case Accelerate: {
1180 const VecDesc VecFuncs[] = {
1181 #define TLI_DEFINE_ACCELERATE_VECFUNCS
1182 #include "llvm/Analysis/VecFuncs.def"
1183 };
1184 addVectorizableFunctions(VecFuncs);
1185 break;
1186 }
1187 case DarwinLibSystemM: {
1188 const VecDesc VecFuncs[] = {
1189 #define TLI_DEFINE_DARWIN_LIBSYSTEM_M_VECFUNCS
1190 #include "llvm/Analysis/VecFuncs.def"
1191 };
1192 addVectorizableFunctions(VecFuncs);
1193 break;
1194 }
1195 case LIBMVEC_X86: {
1196 const VecDesc VecFuncs[] = {
1197 #define TLI_DEFINE_LIBMVEC_X86_VECFUNCS
1198 #include "llvm/Analysis/VecFuncs.def"
1199 };
1200 addVectorizableFunctions(VecFuncs);
1201 break;
1202 }
1203 case MASSV: {
1204 const VecDesc VecFuncs[] = {
1205 #define TLI_DEFINE_MASSV_VECFUNCS
1206 #include "llvm/Analysis/VecFuncs.def"
1207 };
1208 addVectorizableFunctions(VecFuncs);
1209 break;
1210 }
1211 case SVML: {
1212 const VecDesc VecFuncs[] = {
1213 #define TLI_DEFINE_SVML_VECFUNCS
1214 #include "llvm/Analysis/VecFuncs.def"
1215 };
1216 addVectorizableFunctions(VecFuncs);
1217 break;
1218 }
1219 case SLEEFGNUABI: {
1220 const VecDesc VecFuncs_VF2[] = {
1221#define TLI_DEFINE_SLEEFGNUABI_VF2_VECFUNCS
1222#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF, VABI_PREFIX) \
1223 {SCAL, VEC, VF, /* MASK = */ false, VABI_PREFIX},
1224#include "llvm/Analysis/VecFuncs.def"
1225 };
1226 const VecDesc VecFuncs_VF4[] = {
1227#define TLI_DEFINE_SLEEFGNUABI_VF4_VECFUNCS
1228#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF, VABI_PREFIX) \
1229 {SCAL, VEC, VF, /* MASK = */ false, VABI_PREFIX},
1230#include "llvm/Analysis/VecFuncs.def"
1231 };
1232 const VecDesc VecFuncs_VFScalable[] = {
1233#define TLI_DEFINE_SLEEFGNUABI_SCALABLE_VECFUNCS
1234#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF, MASK, VABI_PREFIX) \
1235 {SCAL, VEC, VF, MASK, VABI_PREFIX},
1236#include "llvm/Analysis/VecFuncs.def"
1237 };
1238
1239 switch (TargetTriple.getArch()) {
1240 default:
1241 break;
1242 case llvm::Triple::aarch64:
1243 case llvm::Triple::aarch64_be:
1244 addVectorizableFunctions(VecFuncs_VF2);
1245 addVectorizableFunctions(VecFuncs_VF4);
1246 addVectorizableFunctions(VecFuncs_VFScalable);
1247 break;
1248 }
1249 break;
1250 }
1251 case ArmPL: {
1252 const VecDesc VecFuncs[] = {
1253#define TLI_DEFINE_ARMPL_VECFUNCS
1254#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF, MASK, VABI_PREFIX) \
1255 {SCAL, VEC, VF, MASK, VABI_PREFIX},
1256#include "llvm/Analysis/VecFuncs.def"
1257 };
1258
1259 switch (TargetTriple.getArch()) {
1260 default:
1261 break;
1262 case llvm::Triple::aarch64:
1263 case llvm::Triple::aarch64_be:
1264 addVectorizableFunctions(VecFuncs);
1265 break;
1266 }
1267 break;
1268 }
1269 case NoLibrary:
1270 break;
1271 }
1272}
1273
1274bool TargetLibraryInfoImpl::isFunctionVectorizable(StringRef funcName) const {
1275 funcName = sanitizeFunctionName(funcName);
1276 if (funcName.empty())
1277 return false;
1278
1279 std::vector<VecDesc>::const_iterator I =
1280 llvm::lower_bound(VectorDescs, funcName, compareWithScalarFnName);
1281 return I != VectorDescs.end() && StringRef(I->getScalarFnName()) == funcName;
1282}
1283
1284StringRef TargetLibraryInfoImpl::getVectorizedFunction(StringRef F,
1285 const ElementCount &VF,
1286 bool Masked) const {
1287 const VecDesc *VD = getVectorMappingInfo(F, VF, Masked);
1288 if (VD)
1289 return VD->getVectorFnName();
1290 return StringRef();
1291}
1292
1293const VecDesc *
1294TargetLibraryInfoImpl::getVectorMappingInfo(StringRef F, const ElementCount &VF,
1295 bool Masked) const {
1296 F = sanitizeFunctionName(F);
1297 if (F.empty())
1298 return nullptr;
1299 std::vector<VecDesc>::const_iterator I =
1300 llvm::lower_bound(VectorDescs, F, compareWithScalarFnName);
1301 while (I != VectorDescs.end() && StringRef(I->getScalarFnName()) == F) {
1302 if ((I->getVectorizationFactor() == VF) && (I->isMasked() == Masked))
1303 return &(*I);
1304 ++I;
1305 }
1306 return nullptr;
1307}
1308
1309TargetLibraryInfo TargetLibraryAnalysis::run(const Function &F,
1310 FunctionAnalysisManager &) {
1311 if (!BaselineInfoImpl)
1312 BaselineInfoImpl =
1313 TargetLibraryInfoImpl(Triple(F.getParent()->getTargetTriple()));
1314 return TargetLibraryInfo(*BaselineInfoImpl, &F);
1315}
1316
1317unsigned TargetLibraryInfoImpl::getWCharSize(const Module &M) const {
1318 if (auto *ShortWChar = cast_or_null<ConstantAsMetadata>(
1319 M.getModuleFlag("wchar_size")))
1320 return cast<ConstantInt>(ShortWChar->getValue())->getZExtValue();
1321 return 0;
1322}
1323
1324unsigned TargetLibraryInfoImpl::getSizeTSize(const Module &M) const {
1325 // There is really no guarantee that sizeof(size_t) is equal to sizeof(int*).
1326 // If that isn't true then it should be possible to derive the SizeTTy from
1327 // the target triple here instead and do an early return.
1328
1329 // Historically LLVM assume that size_t has same size as intptr_t (hence
1330 // deriving the size from sizeof(int*) in address space zero). This should
1331 // work for most targets. For future consideration: DataLayout also implement
1332 // getIndexSizeInBits which might map better to size_t compared to
1333 // getPointerSizeInBits. Hard coding address space zero here might be
1334 // unfortunate as well. Maybe getDefaultGlobalsAddressSpace() or
1335 // getAllocaAddrSpace() is better.
1336 unsigned AddressSpace = 0;
1337 return M.getDataLayout().getPointerSizeInBits(AddressSpace);
1338}
1339
1340TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass()
1341 : ImmutablePass(ID), TLA(TargetLibraryInfoImpl()) {
1342 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1343}
1344
1345TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(const Triple &T)
1346 : ImmutablePass(ID), TLA(TargetLibraryInfoImpl(T)) {
1347 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1348}
1349
1350TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(
1351 const TargetLibraryInfoImpl &TLIImpl)
1352 : ImmutablePass(ID), TLA(TLIImpl) {
1353 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1354}
1355
1356AnalysisKey TargetLibraryAnalysis::Key;
1357
1358// Register the basic pass.
1359INITIALIZE_PASS(TargetLibraryInfoWrapperPass, "targetlibinfo",
1360 "Target Library Information", false, true)
1361char TargetLibraryInfoWrapperPass::ID = 0;
1362
1363void TargetLibraryInfoWrapperPass::anchor() {}
1364
1365void TargetLibraryInfoImpl::getWidestVF(StringRef ScalarF,
1366 ElementCount &FixedVF,
1367 ElementCount &ScalableVF) const {
1368 ScalarF = sanitizeFunctionName(ScalarF);
1369 // Use '0' here because a type of the form <vscale x 1 x ElTy> is not the
1370 // same as a scalar.
1371 ScalableVF = ElementCount::getScalable(0);
1372 FixedVF = ElementCount::getFixed(1);
1373 if (ScalarF.empty())
1374 return;
1375
1376 std::vector<VecDesc>::const_iterator I =
1377 llvm::lower_bound(VectorDescs, ScalarF, compareWithScalarFnName);
1378 while (I != VectorDescs.end() && StringRef(I->getScalarFnName()) == ScalarF) {
1379 ElementCount *VF =
1380 I->getVectorizationFactor().isScalable() ? &ScalableVF : &FixedVF;
1381 if (ElementCount::isKnownGT(I->getVectorizationFactor(), *VF))
1382 *VF = I->getVectorizationFactor();
1383 ++I;
1384 }
1385}
clEnumValN
#define clEnumValN(ENUMVAL, FLAGNAME, DESC)
Definition: CommandLine.h:680
Constants.h
This file contains the declarations for the subclasses of Constant, which represent the different fla...
RetTy
return RetTy
Definition: DeadArgumentElimination.cpp:362
Idx
Returns the sub type a function will return at a given Idx Should correspond to the result type of an ExtractValue instruction executed with just that one unsigned Idx
Definition: DeadArgumentElimination.cpp:354
DenseMap.h
This file defines the DenseMap class.
F
#define F(x, y, z)
Definition: MD5.cpp:55
I
#define I(x, y, z)
Definition: MD5.cpp:58
INITIALIZE_PASS
#define INITIALIZE_PASS(passName, arg, name, cfg, analysis)
Definition: PassSupport.h:38
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
SmallString.h
This file defines the SmallString class.
ClVectorLibrary
static cl::opt< TargetLibraryInfoImpl::VectorLibrary > ClVectorLibrary("vector-library", cl::Hidden, cl::desc("Vector functions library"), cl::init(TargetLibraryInfoImpl::NoLibrary), cl::values(clEnumValN(TargetLibraryInfoImpl::NoLibrary, "none", "No vector functions library"), clEnumValN(TargetLibraryInfoImpl::Accelerate, "Accelerate", "Accelerate framework"), clEnumValN(TargetLibraryInfoImpl::DarwinLibSystemM, "Darwin_libsystem_m", "Darwin libsystem_m"), clEnumValN(TargetLibraryInfoImpl::LIBMVEC_X86, "LIBMVEC-X86", "GLIBC Vector Math library"), clEnumValN(TargetLibraryInfoImpl::MASSV, "MASSV", "IBM MASS vector library"), clEnumValN(TargetLibraryInfoImpl::SVML, "SVML", "Intel SVML library"), clEnumValN(TargetLibraryInfoImpl::SLEEFGNUABI, "sleefgnuabi", "SIMD Library for Evaluating Elementary Functions"), clEnumValN(TargetLibraryInfoImpl::ArmPL, "ArmPL", "Arm Performance Libraries")))
hasSinCosPiStret
static bool hasSinCosPiStret(const Triple &T)
Definition: TargetLibraryInfo.cpp:90
sanitizeFunctionName
static StringRef sanitizeFunctionName(StringRef funcName)
Definition: TargetLibraryInfo.cpp:942
initialize
static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T, ArrayRef< StringLiteral > StandardNames)
Initialize the set of available library functions based on the specified target triple.
Definition: TargetLibraryInfo.cpp:164
matchType
static bool matchType(FuncArgTypeID ArgTy, const Type *Ty, unsigned IntBits, unsigned SizeTBits)
Definition: TargetLibraryInfo.cpp:980
hasBcmp
static bool hasBcmp(const Triple &TT)
Definition: TargetLibraryInfo.cpp:108
compareByScalarFnName
static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS)
Definition: TargetLibraryInfo.cpp:1156
compareByVectorFnName
static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS)
Definition: TargetLibraryInfo.cpp:1160
Signatures
static const FuncProtoTy Signatures[]
Definition: TargetLibraryInfo.cpp:82
isCallingConvCCompatible
static bool isCallingConvCCompatible(CallingConv::ID CC, StringRef TT, FunctionType *FuncTy)
Definition: TargetLibraryInfo.cpp:118
FuncArgTypeID
FuncArgTypeID
Definition: TargetLibraryInfo.cpp:57
IntPlus
@ IntPlus
Definition: TargetLibraryInfo.cpp:63
Floating
@ Floating
Definition: TargetLibraryInfo.cpp:73
Struct
@ Struct
Definition: TargetLibraryInfo.cpp:75
SSizeT
@ SSizeT
Definition: TargetLibraryInfo.cpp:69
FuncProtoTy
std::array< FuncArgTypeID, 8 > FuncProtoTy
Definition: TargetLibraryInfo.cpp:80
compareWithScalarFnName
static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S)
Definition: TargetLibraryInfo.cpp:1164
buildIndexMap
static DenseMap< StringRef, LibFunc > buildIndexMap(ArrayRef< StringLiteral > StandardNames)
Definition: TargetLibraryInfo.cpp:954
RHS
Value * RHS
Definition: X86PartialReduction.cpp:76
LHS
Value * LHS
Definition: X86PartialReduction.cpp:75
llvm::AnalysisManager
A container for analyses that lazily runs them and caches their results.
Definition: PassManager.h:649
llvm::ArrayRef
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
Definition: ArrayRef.h:41
llvm::CallBase
Base class for all callable instructions (InvokeInst and CallInst) Holds everything related to callin...
Definition: InstrTypes.h:1227
llvm::CallBase::getCallingConv
CallingConv::ID getCallingConv() const
Definition: InstrTypes.h:1507
llvm::CallBase::getFunctionType
FunctionType * getFunctionType() const
Definition: InstrTypes.h:1307
llvm::DenseMapBase::find
iterator find(const_arg_type_t< KeyT > Val)
Definition: DenseMap.h:155
llvm::DenseMapBase::end
iterator end()
Definition: DenseMap.h:84
llvm::DenseMapBase::reserve
void reserve(size_type NumEntries)
Grow the densemap so that it can contain at least NumEntries items before resizing again.
Definition: DenseMap.h:103
llvm::ElementCount::getScalable
static constexpr ElementCount getScalable(ScalarTy MinVal)
Definition: TypeSize.h:301
llvm::ElementCount::getFixed
static constexpr ElementCount getFixed(ScalarTy MinVal)
Definition: TypeSize.h:298
llvm::Function::getFunctionType
FunctionType * getFunctionType() const
Returns the FunctionType for me.
Definition: Function.h:200
llvm::Function::isIntrinsic
bool isIntrinsic() const
isIntrinsic - Returns true if the function's name starts with "llvm.".
Definition: Function.h:235
llvm::GlobalValue::dropLLVMManglingEscape
static StringRef dropLLVMManglingEscape(StringRef Name)
If the given string begins with the GlobalValue name mangling escape character '\1',...
Definition: GlobalValue.h:562
llvm::GlobalValue::getParent
Module * getParent()
Get the module that this global value is contained inside of...
Definition: GlobalValue.h:652
llvm::ImmutablePass
ImmutablePass class - This class is used to provide information that does not need to be run.
Definition: Pass.h:282
llvm::Instruction::getModule
const Module * getModule() const
Return the module owning the function this instruction belongs to or nullptr it the function does not...
Definition: Instruction.cpp:71
llvm::Module
A Module instance is used to store all the information related to an LLVM module.
Definition: Module.h:65
llvm::Module::getTargetTriple
const std::string & getTargetTriple() const
Get the target triple which is a string describing the target host.
Definition: Module.h:279
llvm::PassRegistry::getPassRegistry
static PassRegistry * getPassRegistry()
getPassRegistry - Access the global registry object, which is automatically initialized at applicatio...
Definition: PassRegistry.cpp:24
llvm::SmallString
SmallString - A SmallString is just a SmallVector with methods and accessors that make it work better...
Definition: SmallString.h:26
llvm::StringLiteral
A wrapper around a string literal that serves as a proxy for constructing global tables of StringRefs...
Definition: StringRef.h:857
llvm::StringRef
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
llvm::StringRef::empty
constexpr bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:134
llvm::StringRef::contains
bool contains(StringRef Other) const
Return true if the given string is a substring of *this, and false otherwise.
Definition: StringRef.h:428
llvm::TargetLibraryAnalysis::run
TargetLibraryInfo run(const Function &F, FunctionAnalysisManager &)
Definition: TargetLibraryInfo.cpp:1309
llvm::TargetLibraryInfoImpl
Implementation of the target library information.
Definition: TargetLibraryInfo.h:83
llvm::TargetLibraryInfoImpl::setShouldExtI32Param
void setShouldExtI32Param(bool Val)
Set to true iff i32 parameters to library functions should have signext or zeroext attributes if they...
Definition: TargetLibraryInfo.h:220
llvm::TargetLibraryInfoImpl::setShouldExtI32Return
void setShouldExtI32Return(bool Val)
Set to true iff i32 results from library functions should have signext or zeroext attributes if they ...
Definition: TargetLibraryInfo.h:227
llvm::TargetLibraryInfoImpl::getWCharSize
unsigned getWCharSize(const Module &M) const
Returns the size of the wchar_t type in bytes or 0 if the size is unknown.
Definition: TargetLibraryInfo.cpp:1317
llvm::TargetLibraryInfoImpl::getLibFunc
bool getLibFunc(StringRef funcName, LibFunc &F) const
Searches for a particular function name.
Definition: TargetLibraryInfo.cpp:963
llvm::TargetLibraryInfoImpl::getWidestVF
void getWidestVF(StringRef ScalarF, ElementCount &FixedVF, ElementCount &Scalable) const
Returns the largest vectorization factor used in the list of vector functions.
Definition: TargetLibraryInfo.cpp:1365
llvm::TargetLibraryInfoImpl::isFunctionVectorizable
bool isFunctionVectorizable(StringRef F, const ElementCount &VF) const
Return true if the function F has a vector equivalent with vectorization factor VF.
Definition: TargetLibraryInfo.h:197
llvm::TargetLibraryInfoImpl::setShouldSignExtI32Param
void setShouldSignExtI32Param(bool Val)
Set to true iff i32 parameters to library functions should have signext attribute if they correspond ...
Definition: TargetLibraryInfo.h:233
llvm::TargetLibraryInfoImpl::setAvailableWithName
void setAvailableWithName(LibFunc F, StringRef Name)
Forces a function to be marked as available and provide an alternate name that must be used.
Definition: TargetLibraryInfo.h:171
llvm::TargetLibraryInfoImpl::getIntSize
unsigned getIntSize() const
Get size of a C-level int or unsigned int, in bits.
Definition: TargetLibraryInfo.h:251
llvm::TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib
void addVectorizableFunctionsFromVecLib(enum VectorLibrary VecLib, const llvm::Triple &TargetTriple)
Calls addVectorizableFunctions with a known preset of functions for the given vector library.
Definition: TargetLibraryInfo.cpp:1176
llvm::TargetLibraryInfoImpl::setIntSize
void setIntSize(unsigned Bits)
Initialize the C-level size of an integer.
Definition: TargetLibraryInfo.h:256
llvm::TargetLibraryInfoImpl::getSizeTSize
unsigned getSizeTSize(const Module &M) const
Returns the size of the size_t type in bits.
Definition: TargetLibraryInfo.cpp:1324
llvm::TargetLibraryInfoImpl::addVectorizableFunctions
void addVectorizableFunctions(ArrayRef< VecDesc > Fns)
Add a set of scalar -> vector mappings, queryable via getVectorizedFunction and getScalarizedFunction...
Definition: TargetLibraryInfo.cpp:1168
llvm::TargetLibraryInfoImpl::getVectorMappingInfo
const VecDesc * getVectorMappingInfo(StringRef F, const ElementCount &VF, bool Masked) const
Return a pointer to a VecDesc object holding all info for scalar to vector mappings in TLI for the eq...
Definition: TargetLibraryInfo.cpp:1294
llvm::TargetLibraryInfoImpl::isCallingConvCCompatible
static bool isCallingConvCCompatible(CallBase *CI)
Returns true if call site / callee has cdecl-compatible calling conventions.
Definition: TargetLibraryInfo.cpp:149
llvm::TargetLibraryInfoImpl::setShouldSignExtI32Return
void setShouldSignExtI32Return(bool Val)
Set to true iff i32 results from library functions should have signext attribute if they correspond t...
Definition: TargetLibraryInfo.h:239
llvm::TargetLibraryInfoImpl::operator=
TargetLibraryInfoImpl & operator=(const TargetLibraryInfoImpl &TLI)
Definition: TargetLibraryInfo.cpp:919
llvm::TargetLibraryInfoImpl::disableAllFunctions
void disableAllFunctions()
Disables all builtins.
Definition: TargetLibraryInfo.cpp:1152
llvm::TargetLibraryInfoImpl::VectorLibrary
VectorLibrary
List of known vector-functions libraries.
Definition: TargetLibraryInfo.h:124
llvm::TargetLibraryInfoImpl::setUnavailable
void setUnavailable(LibFunc F)
Forces a function to be marked as unavailable.
Definition: TargetLibraryInfo.h:160
llvm::TargetLibraryInfoImpl::getVectorizedFunction
StringRef getVectorizedFunction(StringRef F, const ElementCount &VF, bool Masked) const
Return the name of the equivalent of F, vectorized with factor VF.
Definition: TargetLibraryInfo.cpp:1284
llvm::TargetLibraryInfoImpl::setAvailable
void setAvailable(LibFunc F)
Forces a function to be marked as available.
Definition: TargetLibraryInfo.h:165
llvm::TargetLibraryInfo
Provides information about what library functions are available for the current target.
Definition: TargetLibraryInfo.h:276
llvm::TargetLibraryInfo::initExtensionsForTriple
static void initExtensionsForTriple(bool &ShouldExtI32Param, bool &ShouldExtI32Return, bool &ShouldSignExtI32Param, bool &ShouldSignExtI32Return, const Triple &T)
Definition: TargetLibraryInfo.h:444
llvm::Triple
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
llvm::Triple::Emscripten
@ Emscripten
Definition: Triple.h:222
llvm::Triple::aarch64_be
@ aarch64_be
Definition: Triple.h:52
llvm::Triple::getArch
ArchType getArch() const
Get the parsed architecture type of this triple.
Definition: Triple.h:357
llvm::Type
The instances of the Type class are immutable: once they are created, they are never changed.
Definition: Type.h:45
llvm::Type::isArrayTy
bool isArrayTy() const
True if this is an instance of ArrayType.
Definition: Type.h:252
llvm::Type::isPointerTy
bool isPointerTy() const
True if this is an instance of PointerType.
Definition: Type.h:255
llvm::Type::getArrayElementType
Type * getArrayElementType() const
Definition: Type.h:404
llvm::Type::isFloatTy
bool isFloatTy() const
Return true if this is 'float', a 32-bit IEEE fp type.
Definition: Type.h:154
llvm::Type::getArrayNumElements
uint64_t getArrayNumElements() const
llvm::Type::isStructTy
bool isStructTy() const
True if this is an instance of StructType.
Definition: Type.h:249
llvm::Type::isDoubleTy
bool isDoubleTy() const
Return true if this is 'double', a 64-bit IEEE fp type.
Definition: Type.h:157
llvm::Type::isFloatingPointTy
bool isFloatingPointTy() const
Return true if this is one of the floating-point types.
Definition: Type.h:185
llvm::Type::isIntegerTy
bool isIntegerTy() const
True if this is an instance of IntegerType.
Definition: Type.h:228
llvm::Type::getPrimitiveSizeInBits
TypeSize getPrimitiveSizeInBits() const LLVM_READONLY
Return the basic size of this type if it is a primitive type.
llvm::Type::isVoidTy
bool isVoidTy() const
Return true if this is 'void'.
Definition: Type.h:140
llvm::Value::getName
StringRef getName() const
Return a constant reference to the value's name.
Definition: Value.cpp:309
llvm::VecDesc
Provides info so a possible vectorization of a function can be computed.
Definition: TargetLibraryInfo.h:43
llvm::VecDesc::getVectorFunctionABIVariantString
std::string getVectorFunctionABIVariantString() const
Returns a vector function ABI variant string on the form: ZGV<isa><mask><vlen><vparams><scalarname>(<...
Definition: TargetLibraryInfo.cpp:48
llvm::VecDesc::getVectorFnName
StringRef getVectorFnName() const
Definition: TargetLibraryInfo.h:59
llvm::VersionTuple
Represents a version number in the form major[.minor[.subminor[.build]]].
Definition: VersionTuple.h:29
llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownGT
static constexpr bool isKnownGT(const FixedOrScalableQuantity &LHS, const FixedOrScalableQuantity &RHS)
Definition: TypeSize.h:212
llvm::raw_svector_ostream
A raw_ostream that writes to an SmallVector or SmallString.
Definition: raw_ostream.h:672
llvm::raw_svector_ostream::str
StringRef str() const
Return a StringRef for the vector contents.
Definition: raw_ostream.h:697
llvm_unreachable
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:143
llvm::CallingConv::ARM_APCS
@ ARM_APCS
ARM Procedure Calling Standard (obsolete, but still used on some targets).
Definition: CallingConv.h:104
llvm::CallingConv::ARM_AAPCS
@ ARM_AAPCS
ARM Architecture Procedure Calling Standard calling convention (aka EABI).
Definition: CallingConv.h:108
llvm::CallingConv::ARM_AAPCS_VFP
@ ARM_AAPCS_VFP
Same as ARM_AAPCS, but uses hard floating point ABI.
Definition: CallingConv.h:111
llvm::CallingConv::C
@ C
The default llvm calling convention, compatible with C.
Definition: CallingConv.h:34
llvm::cl::values
ValuesClass values(OptsTy... Options)
Helper to build a ValuesClass by forwarding a variable number of arguments as an initializer list to ...
Definition: CommandLine.h:705
llvm::cl::init
initializer< Ty > init(const Ty &Val)
Definition: CommandLine.h:445
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
llvm::AddressSpace
AddressSpace
Definition: NVPTXBaseInfo.h:21
llvm::append_range
void append_range(Container &C, Range &&R)
Wrapper function to append range R to container C.
Definition: STLExtras.h:2042
llvm::sort
void sort(IteratorTy Start, IteratorTy End)
Definition: STLExtras.h:1651
llvm::is_sorted
bool is_sorted(R &&Range, Compare C)
Wrapper function around std::is_sorted to check if elements in a range R are sorted with respect to a...
Definition: STLExtras.h:1906
llvm::lower_bound
auto lower_bound(R &&Range, T &&Value)
Provide wrappers to std::lower_bound which take ranges instead of having to pass begin/end explicitly...
Definition: STLExtras.h:1945
llvm::move
OutputIt move(R &&Range, OutputIt Out)
Provide wrappers to std::move which take ranges instead of having to pass begin/end explicitly.
Definition: STLExtras.h:1853
llvm::initializeTargetLibraryInfoWrapperPassPass
void initializeTargetLibraryInfoWrapperPassPass(PassRegistry &)
std
Implement std::hash so that hash_code can be used in STL containers.
Definition: BitVector.h:858
llvm::AnalysisKey
A special type used by analysis passes to provide an address that identifies that particular analysis...
Definition: PassManager.h:89
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