LLVM 17.0.0git
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/IR/Constants.h"
15#include "llvm/InitializePasses.h"
16#include "llvm/Support/CommandLine.h"
17#include "llvm/TargetParser/Triple.h"
18using namespace llvm;
19
20static cl::opt<TargetLibraryInfoImpl::VectorLibrary> ClVectorLibrary(
21 "vector-library", cl::Hidden, cl::desc("Vector functions library"),
22 cl::init(TargetLibraryInfoImpl::NoLibrary),
23 cl::values(clEnumValN(TargetLibraryInfoImpl::NoLibrary, "none",
24 "No vector functions library"),
25 clEnumValN(TargetLibraryInfoImpl::Accelerate, "Accelerate",
26 "Accelerate framework"),
27 clEnumValN(TargetLibraryInfoImpl::DarwinLibSystemM,
28 "Darwin_libsystem_m", "Darwin libsystem_m"),
29 clEnumValN(TargetLibraryInfoImpl::LIBMVEC_X86, "LIBMVEC-X86",
30 "GLIBC Vector Math library"),
31 clEnumValN(TargetLibraryInfoImpl::MASSV, "MASSV",
32 "IBM MASS vector library"),
33 clEnumValN(TargetLibraryInfoImpl::SVML, "SVML",
34 "Intel SVML library"),
35 clEnumValN(TargetLibraryInfoImpl::SLEEFGNUABI, "sleefgnuabi",
36 "SIMD Library for Evaluating Elementary Functions")));
37
38StringLiteral const TargetLibraryInfoImpl::StandardNames[LibFunc::NumLibFuncs] =
39 {
40#define TLI_DEFINE_STRING
41#include "llvm/Analysis/TargetLibraryInfo.def"
42};
43
44// Recognized types of library function arguments and return types.
45enum FuncArgTypeID : char {
46 Void = 0, // Must be zero.
47 Bool, // 8 bits on all targets
48 Int16,
49 Int32,
50 Int,
51 IntPlus, // Int or bigger.
52 Long, // Either 32 or 64 bits.
53 IntX, // Any integer type.
54 Int64,
55 LLong, // 64 bits on all targets.
56 SizeT, // size_t.
57 SSizeT, // POSIX ssize_t.
58 Flt, // IEEE float.
59 Dbl, // IEEE double.
60 LDbl, // Any floating type (TODO: tighten this up).
61 Floating, // Any floating type.
62 Ptr, // Any pointer type.
63 Struct, // Any struct type.
64 Ellip, // The ellipsis (...).
65 Same, // Same argument type as the previous one.
66};
67
68typedef std::array<FuncArgTypeID, 8> FuncProtoTy;
69
70static const FuncProtoTy Signatures[] = {
71#define TLI_DEFINE_SIG
72#include "llvm/Analysis/TargetLibraryInfo.def"
73};
74
75static_assert(sizeof Signatures / sizeof *Signatures == LibFunc::NumLibFuncs,
76 "Missing library function signatures");
77
78static bool hasSinCosPiStret(const Triple &T) {
79 // Only Darwin variants have _stret versions of combined trig functions.
80 if (!T.isOSDarwin())
81 return false;
82
83 // The ABI is rather complicated on x86, so don't do anything special there.
84 if (T.getArch() == Triple::x86)
85 return false;
86
87 if (T.isMacOSX() && T.isMacOSXVersionLT(10, 9))
88 return false;
89
90 if (T.isiOS() && T.isOSVersionLT(7, 0))
91 return false;
92
93 return true;
94}
95
96static bool hasBcmp(const Triple &TT) {
97 // Posix removed support from bcmp() in 2001, but the glibc and several
98 // implementations of the libc still have it.
99 if (TT.isOSLinux())
100 return TT.isGNUEnvironment() || TT.isMusl();
101 // Both NetBSD and OpenBSD are planning to remove the function. Windows does
102 // not have it.
103 return TT.isOSFreeBSD() || TT.isOSSolaris();
104}
105
106static bool isCallingConvCCompatible(CallingConv::ID CC, StringRef TT,
107 FunctionType *FuncTy) {
108 switch (CC) {
109 default:
110 return false;
111 case llvm::CallingConv::C:
112 return true;
113 case llvm::CallingConv::ARM_APCS:
114 case llvm::CallingConv::ARM_AAPCS:
115 case llvm::CallingConv::ARM_AAPCS_VFP: {
116
117 // The iOS ABI diverges from the standard in some cases, so for now don't
118 // try to simplify those calls.
119 if (Triple(TT).isiOS())
120 return false;
121
122 if (!FuncTy->getReturnType()->isPointerTy() &&
123 !FuncTy->getReturnType()->isIntegerTy() &&
124 !FuncTy->getReturnType()->isVoidTy())
125 return false;
126
127 for (auto *Param : FuncTy->params()) {
128 if (!Param->isPointerTy() && !Param->isIntegerTy())
129 return false;
130 }
131 return true;
132 }
133 }
134 return false;
135}
136
137bool TargetLibraryInfoImpl::isCallingConvCCompatible(CallBase *CI) {
138 return ::isCallingConvCCompatible(CI->getCallingConv(),
139 CI->getModule()->getTargetTriple(),
140 CI->getFunctionType());
141}
142
143bool TargetLibraryInfoImpl::isCallingConvCCompatible(Function *F) {
144 return ::isCallingConvCCompatible(F->getCallingConv(),
145 F->getParent()->getTargetTriple(),
146 F->getFunctionType());
147}
148
149/// Initialize the set of available library functions based on the specified
150/// target triple. This should be carefully written so that a missing target
151/// triple gets a sane set of defaults.
152static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
153 ArrayRef<StringLiteral> StandardNames) {
154 // Verify that the StandardNames array is in alphabetical order.
155 assert(
156 llvm::is_sorted(StandardNames,
157 [](StringRef LHS, StringRef RHS) { return LHS < RHS; }) &&
158 "TargetLibraryInfoImpl function names must be sorted");
159
160 // Set IO unlocked variants as unavailable
161 // Set them as available per system below
162 TLI.setUnavailable(LibFunc_getc_unlocked);
163 TLI.setUnavailable(LibFunc_getchar_unlocked);
164 TLI.setUnavailable(LibFunc_putc_unlocked);
165 TLI.setUnavailable(LibFunc_putchar_unlocked);
166 TLI.setUnavailable(LibFunc_fputc_unlocked);
167 TLI.setUnavailable(LibFunc_fgetc_unlocked);
168 TLI.setUnavailable(LibFunc_fread_unlocked);
169 TLI.setUnavailable(LibFunc_fwrite_unlocked);
170 TLI.setUnavailable(LibFunc_fputs_unlocked);
171 TLI.setUnavailable(LibFunc_fgets_unlocked);
172
173 bool ShouldExtI32Param, ShouldExtI32Return;
174 bool ShouldSignExtI32Param, ShouldSignExtI32Return;
175 TargetLibraryInfo::initExtensionsForTriple(ShouldExtI32Param,
176 ShouldExtI32Return, ShouldSignExtI32Param, ShouldSignExtI32Return, T);
177 TLI.setShouldExtI32Param(ShouldExtI32Param);
178 TLI.setShouldExtI32Return(ShouldExtI32Return);
179 TLI.setShouldSignExtI32Param(ShouldSignExtI32Param);
180 TLI.setShouldSignExtI32Return(ShouldSignExtI32Return);
181
182 // Let's assume by default that the size of int is 32 bits, unless the target
183 // is a 16-bit architecture because then it most likely is 16 bits. If that
184 // isn't true for a target those defaults should be overridden below.
185 TLI.setIntSize(T.isArch16Bit() ? 16 : 32);
186
187 // There is really no runtime library on AMDGPU, apart from
188 // __kmpc_alloc/free_shared.
189 if (T.isAMDGPU()) {
190 TLI.disableAllFunctions();
191 TLI.setAvailable(llvm::LibFunc___kmpc_alloc_shared);
192 TLI.setAvailable(llvm::LibFunc___kmpc_free_shared);
193 return;
194 }
195
196 // memset_pattern{4,8,16} is only available on iOS 3.0 and Mac OS X 10.5 and
197 // later. All versions of watchOS support it.
198 if (T.isMacOSX()) {
199 // available IO unlocked variants on Mac OS X
200 TLI.setAvailable(LibFunc_getc_unlocked);
201 TLI.setAvailable(LibFunc_getchar_unlocked);
202 TLI.setAvailable(LibFunc_putc_unlocked);
203 TLI.setAvailable(LibFunc_putchar_unlocked);
204
205 if (T.isMacOSXVersionLT(10, 5)) {
206 TLI.setUnavailable(LibFunc_memset_pattern4);
207 TLI.setUnavailable(LibFunc_memset_pattern8);
208 TLI.setUnavailable(LibFunc_memset_pattern16);
209 }
210 } else if (T.isiOS()) {
211 if (T.isOSVersionLT(3, 0)) {
212 TLI.setUnavailable(LibFunc_memset_pattern4);
213 TLI.setUnavailable(LibFunc_memset_pattern8);
214 TLI.setUnavailable(LibFunc_memset_pattern16);
215 }
216 } else if (!T.isWatchOS()) {
217 TLI.setUnavailable(LibFunc_memset_pattern4);
218 TLI.setUnavailable(LibFunc_memset_pattern8);
219 TLI.setUnavailable(LibFunc_memset_pattern16);
220 }
221
222 if (!hasSinCosPiStret(T)) {
223 TLI.setUnavailable(LibFunc_sinpi);
224 TLI.setUnavailable(LibFunc_sinpif);
225 TLI.setUnavailable(LibFunc_cospi);
226 TLI.setUnavailable(LibFunc_cospif);
227 TLI.setUnavailable(LibFunc_sincospi_stret);
228 TLI.setUnavailable(LibFunc_sincospif_stret);
229 }
230
231 if (!hasBcmp(T))
232 TLI.setUnavailable(LibFunc_bcmp);
233
234 if (T.isMacOSX() && T.getArch() == Triple::x86 &&
235 !T.isMacOSXVersionLT(10, 7)) {
236 // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
237 // we don't care about) have two versions; on recent OSX, the one we want
238 // has a $UNIX2003 suffix. The two implementations are identical except
239 // for the return value in some edge cases. However, we don't want to
240 // generate code that depends on the old symbols.
241 TLI.setAvailableWithName(LibFunc_fwrite, "fwrite$UNIX2003");
242 TLI.setAvailableWithName(LibFunc_fputs, "fputs$UNIX2003");
243 }
244
245 // iprintf and friends are only available on XCore, TCE, and Emscripten.
246 if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce &&
247 T.getOS() != Triple::Emscripten) {
248 TLI.setUnavailable(LibFunc_iprintf);
249 TLI.setUnavailable(LibFunc_siprintf);
250 TLI.setUnavailable(LibFunc_fiprintf);
251 }
252
253 // __small_printf and friends are only available on Emscripten.
254 if (T.getOS() != Triple::Emscripten) {
255 TLI.setUnavailable(LibFunc_small_printf);
256 TLI.setUnavailable(LibFunc_small_sprintf);
257 TLI.setUnavailable(LibFunc_small_fprintf);
258 }
259
260 if (T.isOSWindows() && !T.isOSCygMing()) {
261 // XXX: The earliest documentation available at the moment is for VS2015/VC19:
262 // https://docs.microsoft.com/en-us/cpp/c-runtime-library/floating-point-support?view=vs-2015
263 // XXX: In order to use an MSVCRT older than VC19,
264 // the specific library version must be explicit in the target triple,
265 // e.g., x86_64-pc-windows-msvc18.
266 bool hasPartialC99 = true;
267 if (T.isKnownWindowsMSVCEnvironment()) {
268 VersionTuple Version = T.getEnvironmentVersion();
269 hasPartialC99 = (Version.getMajor() == 0 || Version.getMajor() >= 19);
270 }
271
272 // Latest targets support C89 math functions, in part.
273 bool isARM = (T.getArch() == Triple::aarch64 ||
274 T.getArch() == Triple::arm);
275 bool hasPartialFloat = (isARM ||
276 T.getArch() == Triple::x86_64);
277
278 // Win32 does not support float C89 math functions, in general.
279 if (!hasPartialFloat) {
280 TLI.setUnavailable(LibFunc_acosf);
281 TLI.setUnavailable(LibFunc_asinf);
282 TLI.setUnavailable(LibFunc_atan2f);
283 TLI.setUnavailable(LibFunc_atanf);
284 TLI.setUnavailable(LibFunc_ceilf);
285 TLI.setUnavailable(LibFunc_cosf);
286 TLI.setUnavailable(LibFunc_coshf);
287 TLI.setUnavailable(LibFunc_expf);
288 TLI.setUnavailable(LibFunc_floorf);
289 TLI.setUnavailable(LibFunc_fmodf);
290 TLI.setUnavailable(LibFunc_log10f);
291 TLI.setUnavailable(LibFunc_logf);
292 TLI.setUnavailable(LibFunc_modff);
293 TLI.setUnavailable(LibFunc_powf);
294 TLI.setUnavailable(LibFunc_remainderf);
295 TLI.setUnavailable(LibFunc_sinf);
296 TLI.setUnavailable(LibFunc_sinhf);
297 TLI.setUnavailable(LibFunc_sqrtf);
298 TLI.setUnavailable(LibFunc_tanf);
299 TLI.setUnavailable(LibFunc_tanhf);
300 }
301 if (!isARM)
302 TLI.setUnavailable(LibFunc_fabsf);
303 TLI.setUnavailable(LibFunc_frexpf);
304 TLI.setUnavailable(LibFunc_ldexpf);
305
306 // Win32 does not support long double C89 math functions.
307 TLI.setUnavailable(LibFunc_acosl);
308 TLI.setUnavailable(LibFunc_asinl);
309 TLI.setUnavailable(LibFunc_atan2l);
310 TLI.setUnavailable(LibFunc_atanl);
311 TLI.setUnavailable(LibFunc_ceill);
312 TLI.setUnavailable(LibFunc_cosl);
313 TLI.setUnavailable(LibFunc_coshl);
314 TLI.setUnavailable(LibFunc_expl);
315 TLI.setUnavailable(LibFunc_fabsl);
316 TLI.setUnavailable(LibFunc_floorl);
317 TLI.setUnavailable(LibFunc_fmodl);
318 TLI.setUnavailable(LibFunc_frexpl);
319 TLI.setUnavailable(LibFunc_ldexpl);
320 TLI.setUnavailable(LibFunc_log10l);
321 TLI.setUnavailable(LibFunc_logl);
322 TLI.setUnavailable(LibFunc_modfl);
323 TLI.setUnavailable(LibFunc_powl);
324 TLI.setUnavailable(LibFunc_remainderl);
325 TLI.setUnavailable(LibFunc_sinl);
326 TLI.setUnavailable(LibFunc_sinhl);
327 TLI.setUnavailable(LibFunc_sqrtl);
328 TLI.setUnavailable(LibFunc_tanl);
329 TLI.setUnavailable(LibFunc_tanhl);
330
331 // Win32 does not fully support C99 math functions.
332 if (!hasPartialC99) {
333 TLI.setUnavailable(LibFunc_acosh);
334 TLI.setUnavailable(LibFunc_acoshf);
335 TLI.setUnavailable(LibFunc_asinh);
336 TLI.setUnavailable(LibFunc_asinhf);
337 TLI.setUnavailable(LibFunc_atanh);
338 TLI.setUnavailable(LibFunc_atanhf);
339 TLI.setAvailableWithName(LibFunc_cabs, "_cabs");
340 TLI.setUnavailable(LibFunc_cabsf);
341 TLI.setUnavailable(LibFunc_cbrt);
342 TLI.setUnavailable(LibFunc_cbrtf);
343 TLI.setAvailableWithName(LibFunc_copysign, "_copysign");
344 TLI.setAvailableWithName(LibFunc_copysignf, "_copysignf");
345 TLI.setUnavailable(LibFunc_exp2);
346 TLI.setUnavailable(LibFunc_exp2f);
347 TLI.setUnavailable(LibFunc_expm1);
348 TLI.setUnavailable(LibFunc_expm1f);
349 TLI.setUnavailable(LibFunc_fmax);
350 TLI.setUnavailable(LibFunc_fmaxf);
351 TLI.setUnavailable(LibFunc_fmin);
352 TLI.setUnavailable(LibFunc_fminf);
353 TLI.setUnavailable(LibFunc_log1p);
354 TLI.setUnavailable(LibFunc_log1pf);
355 TLI.setUnavailable(LibFunc_log2);
356 TLI.setUnavailable(LibFunc_log2f);
357 TLI.setAvailableWithName(LibFunc_logb, "_logb");
358 if (hasPartialFloat)
359 TLI.setAvailableWithName(LibFunc_logbf, "_logbf");
360 else
361 TLI.setUnavailable(LibFunc_logbf);
362 TLI.setUnavailable(LibFunc_rint);
363 TLI.setUnavailable(LibFunc_rintf);
364 TLI.setUnavailable(LibFunc_round);
365 TLI.setUnavailable(LibFunc_roundf);
366 TLI.setUnavailable(LibFunc_trunc);
367 TLI.setUnavailable(LibFunc_truncf);
368 }
369
370 // Win32 does not support long double C99 math functions.
371 TLI.setUnavailable(LibFunc_acoshl);
372 TLI.setUnavailable(LibFunc_asinhl);
373 TLI.setUnavailable(LibFunc_atanhl);
374 TLI.setUnavailable(LibFunc_cabsl);
375 TLI.setUnavailable(LibFunc_cbrtl);
376 TLI.setUnavailable(LibFunc_copysignl);
377 TLI.setUnavailable(LibFunc_exp2l);
378 TLI.setUnavailable(LibFunc_expm1l);
379 TLI.setUnavailable(LibFunc_fmaxl);
380 TLI.setUnavailable(LibFunc_fminl);
381 TLI.setUnavailable(LibFunc_log1pl);
382 TLI.setUnavailable(LibFunc_log2l);
383 TLI.setUnavailable(LibFunc_logbl);
384 TLI.setUnavailable(LibFunc_nearbyintl);
385 TLI.setUnavailable(LibFunc_rintl);
386 TLI.setUnavailable(LibFunc_roundl);
387 TLI.setUnavailable(LibFunc_truncl);
388
389 // Win32 does not support these functions, but
390 // they are generally available on POSIX-compliant systems.
391 TLI.setUnavailable(LibFunc_access);
392 TLI.setUnavailable(LibFunc_chmod);
393 TLI.setUnavailable(LibFunc_closedir);
394 TLI.setUnavailable(LibFunc_fdopen);
395 TLI.setUnavailable(LibFunc_fileno);
396 TLI.setUnavailable(LibFunc_fseeko);
397 TLI.setUnavailable(LibFunc_fstat);
398 TLI.setUnavailable(LibFunc_ftello);
399 TLI.setUnavailable(LibFunc_gettimeofday);
400 TLI.setUnavailable(LibFunc_memccpy);
401 TLI.setUnavailable(LibFunc_mkdir);
402 TLI.setUnavailable(LibFunc_open);
403 TLI.setUnavailable(LibFunc_opendir);
404 TLI.setUnavailable(LibFunc_pclose);
405 TLI.setUnavailable(LibFunc_popen);
406 TLI.setUnavailable(LibFunc_read);
407 TLI.setUnavailable(LibFunc_rmdir);
408 TLI.setUnavailable(LibFunc_stat);
409 TLI.setUnavailable(LibFunc_strcasecmp);
410 TLI.setUnavailable(LibFunc_strncasecmp);
411 TLI.setUnavailable(LibFunc_unlink);
412 TLI.setUnavailable(LibFunc_utime);
413 TLI.setUnavailable(LibFunc_write);
414 }
415
416 if (T.isOSWindows() && !T.isWindowsCygwinEnvironment()) {
417 // These functions aren't available in either MSVC or MinGW environments.
418 TLI.setUnavailable(LibFunc_bcmp);
419 TLI.setUnavailable(LibFunc_bcopy);
420 TLI.setUnavailable(LibFunc_bzero);
421 TLI.setUnavailable(LibFunc_chown);
422 TLI.setUnavailable(LibFunc_ctermid);
423 TLI.setUnavailable(LibFunc_ffs);
424 TLI.setUnavailable(LibFunc_flockfile);
425 TLI.setUnavailable(LibFunc_fstatvfs);
426 TLI.setUnavailable(LibFunc_ftrylockfile);
427 TLI.setUnavailable(LibFunc_funlockfile);
428 TLI.setUnavailable(LibFunc_getitimer);
429 TLI.setUnavailable(LibFunc_getlogin_r);
430 TLI.setUnavailable(LibFunc_getpwnam);
431 TLI.setUnavailable(LibFunc_htonl);
432 TLI.setUnavailable(LibFunc_htons);
433 TLI.setUnavailable(LibFunc_lchown);
434 TLI.setUnavailable(LibFunc_lstat);
435 TLI.setUnavailable(LibFunc_memrchr);
436 TLI.setUnavailable(LibFunc_ntohl);
437 TLI.setUnavailable(LibFunc_ntohs);
438 TLI.setUnavailable(LibFunc_pread);
439 TLI.setUnavailable(LibFunc_pwrite);
440 TLI.setUnavailable(LibFunc_readlink);
441 TLI.setUnavailable(LibFunc_realpath);
442 TLI.setUnavailable(LibFunc_setitimer);
443 TLI.setUnavailable(LibFunc_statvfs);
444 TLI.setUnavailable(LibFunc_stpcpy);
445 TLI.setUnavailable(LibFunc_stpncpy);
446 TLI.setUnavailable(LibFunc_times);
447 TLI.setUnavailable(LibFunc_uname);
448 TLI.setUnavailable(LibFunc_unsetenv);
449 TLI.setUnavailable(LibFunc_utimes);
450 }
451
452 // Pick just one set of new/delete variants.
453 if (T.isOSMSVCRT()) {
454 // MSVC, doesn't have the Itanium new/delete.
455 TLI.setUnavailable(LibFunc_ZdaPv);
456 TLI.setUnavailable(LibFunc_ZdaPvRKSt9nothrow_t);
457 TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_t);
458 TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t);
459 TLI.setUnavailable(LibFunc_ZdaPvj);
460 TLI.setUnavailable(LibFunc_ZdaPvjSt11align_val_t);
461 TLI.setUnavailable(LibFunc_ZdaPvm);
462 TLI.setUnavailable(LibFunc_ZdaPvmSt11align_val_t);
463 TLI.setUnavailable(LibFunc_ZdlPv);
464 TLI.setUnavailable(LibFunc_ZdlPvRKSt9nothrow_t);
465 TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_t);
466 TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t);
467 TLI.setUnavailable(LibFunc_ZdlPvj);
468 TLI.setUnavailable(LibFunc_ZdlPvjSt11align_val_t);
469 TLI.setUnavailable(LibFunc_ZdlPvm);
470 TLI.setUnavailable(LibFunc_ZdlPvmSt11align_val_t);
471 TLI.setUnavailable(LibFunc_Znaj);
472 TLI.setUnavailable(LibFunc_ZnajRKSt9nothrow_t);
473 TLI.setUnavailable(LibFunc_ZnajSt11align_val_t);
474 TLI.setUnavailable(LibFunc_ZnajSt11align_val_tRKSt9nothrow_t);
475 TLI.setUnavailable(LibFunc_Znam);
476 TLI.setUnavailable(LibFunc_ZnamRKSt9nothrow_t);
477 TLI.setUnavailable(LibFunc_ZnamRKSt9nothrow_t12__hot_cold_t);
478 TLI.setUnavailable(LibFunc_ZnamSt11align_val_t);
479 TLI.setUnavailable(LibFunc_ZnamSt11align_val_tRKSt9nothrow_t);
480 TLI.setUnavailable(LibFunc_Znwj);
481 TLI.setUnavailable(LibFunc_ZnwjRKSt9nothrow_t);
482 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_t);
483 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t);
484 TLI.setUnavailable(LibFunc_Znwm);
485 TLI.setUnavailable(LibFunc_ZnwmRKSt9nothrow_t);
486 TLI.setUnavailable(LibFunc_ZnwmRKSt9nothrow_t12__hot_cold_t);
487 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_t);
488 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t);
489 TLI.setUnavailable(LibFunc_Znwm12__hot_cold_t);
490 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_t12__hot_cold_t);
491 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t12__hot_cold_t);
492 TLI.setUnavailable(LibFunc_Znam12__hot_cold_t);
493 TLI.setUnavailable(LibFunc_ZnamSt11align_val_t12__hot_cold_t);
494 TLI.setUnavailable(LibFunc_ZnamSt11align_val_tRKSt9nothrow_t12__hot_cold_t);
495 } else {
496 // Not MSVC, assume it's Itanium.
497 TLI.setUnavailable(LibFunc_msvc_new_int);
498 TLI.setUnavailable(LibFunc_msvc_new_int_nothrow);
499 TLI.setUnavailable(LibFunc_msvc_new_longlong);
500 TLI.setUnavailable(LibFunc_msvc_new_longlong_nothrow);
501 TLI.setUnavailable(LibFunc_msvc_delete_ptr32);
502 TLI.setUnavailable(LibFunc_msvc_delete_ptr32_nothrow);
503 TLI.setUnavailable(LibFunc_msvc_delete_ptr32_int);
504 TLI.setUnavailable(LibFunc_msvc_delete_ptr64);
505 TLI.setUnavailable(LibFunc_msvc_delete_ptr64_nothrow);
506 TLI.setUnavailable(LibFunc_msvc_delete_ptr64_longlong);
507 TLI.setUnavailable(LibFunc_msvc_new_array_int);
508 TLI.setUnavailable(LibFunc_msvc_new_array_int_nothrow);
509 TLI.setUnavailable(LibFunc_msvc_new_array_longlong);
510 TLI.setUnavailable(LibFunc_msvc_new_array_longlong_nothrow);
511 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32);
512 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_nothrow);
513 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_int);
514 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64);
515 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_nothrow);
516 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_longlong);
517 }
518
519 switch (T.getOS()) {
520 case Triple::MacOSX:
521 // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
522 // and their names are __exp10 and __exp10f. exp10l is not available on
523 // OS X or iOS.
524 TLI.setUnavailable(LibFunc_exp10l);
525 if (T.isMacOSXVersionLT(10, 9)) {
526 TLI.setUnavailable(LibFunc_exp10);
527 TLI.setUnavailable(LibFunc_exp10f);
528 } else {
529 TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
530 TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
531 }
532 break;
533 case Triple::IOS:
534 case Triple::TvOS:
535 case Triple::WatchOS:
536 TLI.setUnavailable(LibFunc_exp10l);
537 if (!T.isWatchOS() &&
538 (T.isOSVersionLT(7, 0) || (T.isOSVersionLT(9, 0) && T.isX86()))) {
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::Linux:
547 // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
548 // buggy prior to glibc version 2.18. Until this version is widely deployed
549 // or we have a reasonable detection strategy, we cannot use exp10 reliably
550 // on Linux.
551 //
552 // Fall through to disable all of them.
553 [[fallthrough]];
554 default:
555 TLI.setUnavailable(LibFunc_exp10);
556 TLI.setUnavailable(LibFunc_exp10f);
557 TLI.setUnavailable(LibFunc_exp10l);
558 }
559
560 // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
561 // Linux (GLIBC):
562 // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
563 // http://svn.freebsd.org/base/head/lib/libc/string/ffsl.c
564 // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
565 switch (T.getOS()) {
566 case Triple::Darwin:
567 case Triple::MacOSX:
568 case Triple::IOS:
569 case Triple::TvOS:
570 case Triple::WatchOS:
571 case Triple::FreeBSD:
572 case Triple::Linux:
573 break;
574 default:
575 TLI.setUnavailable(LibFunc_ffsl);
576 }
577
578 // ffsll is available on at least FreeBSD and Linux (GLIBC):
579 // http://svn.freebsd.org/base/head/lib/libc/string/ffsll.c
580 // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
581 switch (T.getOS()) {
582 case Triple::Darwin:
583 case Triple::MacOSX:
584 case Triple::IOS:
585 case Triple::TvOS:
586 case Triple::WatchOS:
587 case Triple::FreeBSD:
588 case Triple::Linux:
589 break;
590 default:
591 TLI.setUnavailable(LibFunc_ffsll);
592 }
593
594 // The following functions are available on at least FreeBSD:
595 // http://svn.freebsd.org/base/head/lib/libc/string/fls.c
596 // http://svn.freebsd.org/base/head/lib/libc/string/flsl.c
597 // http://svn.freebsd.org/base/head/lib/libc/string/flsll.c
598 if (!T.isOSFreeBSD()) {
599 TLI.setUnavailable(LibFunc_fls);
600 TLI.setUnavailable(LibFunc_flsl);
601 TLI.setUnavailable(LibFunc_flsll);
602 }
603
604 // The following functions are only available on GNU/Linux (using glibc).
605 // Linux variants without glibc (eg: bionic, musl) may have some subset.
606 if (!T.isOSLinux() || !T.isGNUEnvironment()) {
607 TLI.setUnavailable(LibFunc_dunder_strdup);
608 TLI.setUnavailable(LibFunc_dunder_strtok_r);
609 TLI.setUnavailable(LibFunc_dunder_isoc99_scanf);
610 TLI.setUnavailable(LibFunc_dunder_isoc99_sscanf);
611 TLI.setUnavailable(LibFunc_under_IO_getc);
612 TLI.setUnavailable(LibFunc_under_IO_putc);
613 // But, Android and musl have memalign.
614 if (!T.isAndroid() && !T.isMusl())
615 TLI.setUnavailable(LibFunc_memalign);
616 TLI.setUnavailable(LibFunc_fopen64);
617 TLI.setUnavailable(LibFunc_fseeko64);
618 TLI.setUnavailable(LibFunc_fstat64);
619 TLI.setUnavailable(LibFunc_fstatvfs64);
620 TLI.setUnavailable(LibFunc_ftello64);
621 TLI.setUnavailable(LibFunc_lstat64);
622 TLI.setUnavailable(LibFunc_open64);
623 TLI.setUnavailable(LibFunc_stat64);
624 TLI.setUnavailable(LibFunc_statvfs64);
625 TLI.setUnavailable(LibFunc_tmpfile64);
626
627 // Relaxed math functions are included in math-finite.h on Linux (GLIBC).
628 // Note that math-finite.h is no longer supported by top-of-tree GLIBC,
629 // so we keep these functions around just so that they're recognized by
630 // the ConstantFolder.
631 TLI.setUnavailable(LibFunc_acos_finite);
632 TLI.setUnavailable(LibFunc_acosf_finite);
633 TLI.setUnavailable(LibFunc_acosl_finite);
634 TLI.setUnavailable(LibFunc_acosh_finite);
635 TLI.setUnavailable(LibFunc_acoshf_finite);
636 TLI.setUnavailable(LibFunc_acoshl_finite);
637 TLI.setUnavailable(LibFunc_asin_finite);
638 TLI.setUnavailable(LibFunc_asinf_finite);
639 TLI.setUnavailable(LibFunc_asinl_finite);
640 TLI.setUnavailable(LibFunc_atan2_finite);
641 TLI.setUnavailable(LibFunc_atan2f_finite);
642 TLI.setUnavailable(LibFunc_atan2l_finite);
643 TLI.setUnavailable(LibFunc_atanh_finite);
644 TLI.setUnavailable(LibFunc_atanhf_finite);
645 TLI.setUnavailable(LibFunc_atanhl_finite);
646 TLI.setUnavailable(LibFunc_cosh_finite);
647 TLI.setUnavailable(LibFunc_coshf_finite);
648 TLI.setUnavailable(LibFunc_coshl_finite);
649 TLI.setUnavailable(LibFunc_exp10_finite);
650 TLI.setUnavailable(LibFunc_exp10f_finite);
651 TLI.setUnavailable(LibFunc_exp10l_finite);
652 TLI.setUnavailable(LibFunc_exp2_finite);
653 TLI.setUnavailable(LibFunc_exp2f_finite);
654 TLI.setUnavailable(LibFunc_exp2l_finite);
655 TLI.setUnavailable(LibFunc_exp_finite);
656 TLI.setUnavailable(LibFunc_expf_finite);
657 TLI.setUnavailable(LibFunc_expl_finite);
658 TLI.setUnavailable(LibFunc_log10_finite);
659 TLI.setUnavailable(LibFunc_log10f_finite);
660 TLI.setUnavailable(LibFunc_log10l_finite);
661 TLI.setUnavailable(LibFunc_log2_finite);
662 TLI.setUnavailable(LibFunc_log2f_finite);
663 TLI.setUnavailable(LibFunc_log2l_finite);
664 TLI.setUnavailable(LibFunc_log_finite);
665 TLI.setUnavailable(LibFunc_logf_finite);
666 TLI.setUnavailable(LibFunc_logl_finite);
667 TLI.setUnavailable(LibFunc_pow_finite);
668 TLI.setUnavailable(LibFunc_powf_finite);
669 TLI.setUnavailable(LibFunc_powl_finite);
670 TLI.setUnavailable(LibFunc_sinh_finite);
671 TLI.setUnavailable(LibFunc_sinhf_finite);
672 TLI.setUnavailable(LibFunc_sinhl_finite);
673 TLI.setUnavailable(LibFunc_sqrt_finite);
674 TLI.setUnavailable(LibFunc_sqrtf_finite);
675 TLI.setUnavailable(LibFunc_sqrtl_finite);
676 }
677
678 if ((T.isOSLinux() && T.isGNUEnvironment()) ||
679 (T.isAndroid() && !T.isAndroidVersionLT(28))) {
680 // available IO unlocked variants on GNU/Linux and Android P or later
681 TLI.setAvailable(LibFunc_getc_unlocked);
682 TLI.setAvailable(LibFunc_getchar_unlocked);
683 TLI.setAvailable(LibFunc_putc_unlocked);
684 TLI.setAvailable(LibFunc_putchar_unlocked);
685 TLI.setAvailable(LibFunc_fputc_unlocked);
686 TLI.setAvailable(LibFunc_fgetc_unlocked);
687 TLI.setAvailable(LibFunc_fread_unlocked);
688 TLI.setAvailable(LibFunc_fwrite_unlocked);
689 TLI.setAvailable(LibFunc_fputs_unlocked);
690 TLI.setAvailable(LibFunc_fgets_unlocked);
691 }
692
693 if (T.isAndroid() && T.isAndroidVersionLT(21)) {
694 TLI.setUnavailable(LibFunc_stpcpy);
695 TLI.setUnavailable(LibFunc_stpncpy);
696 }
697
698 if (T.isPS()) {
699 // PS4/PS5 do have memalign.
700 TLI.setAvailable(LibFunc_memalign);
701
702 // PS4/PS5 do not have new/delete with "unsigned int" size parameter;
703 // they only have the "unsigned long" versions.
704 TLI.setUnavailable(LibFunc_ZdaPvj);
705 TLI.setUnavailable(LibFunc_ZdaPvjSt11align_val_t);
706 TLI.setUnavailable(LibFunc_ZdlPvj);
707 TLI.setUnavailable(LibFunc_ZdlPvjSt11align_val_t);
708 TLI.setUnavailable(LibFunc_Znaj);
709 TLI.setUnavailable(LibFunc_ZnajRKSt9nothrow_t);
710 TLI.setUnavailable(LibFunc_ZnajSt11align_val_t);
711 TLI.setUnavailable(LibFunc_ZnajSt11align_val_tRKSt9nothrow_t);
712 TLI.setUnavailable(LibFunc_Znwj);
713 TLI.setUnavailable(LibFunc_ZnwjRKSt9nothrow_t);
714 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_t);
715 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t);
716
717 // None of the *_chk functions.
718 TLI.setUnavailable(LibFunc_memccpy_chk);
719 TLI.setUnavailable(LibFunc_memcpy_chk);
720 TLI.setUnavailable(LibFunc_memmove_chk);
721 TLI.setUnavailable(LibFunc_mempcpy_chk);
722 TLI.setUnavailable(LibFunc_memset_chk);
723 TLI.setUnavailable(LibFunc_snprintf_chk);
724 TLI.setUnavailable(LibFunc_sprintf_chk);
725 TLI.setUnavailable(LibFunc_stpcpy_chk);
726 TLI.setUnavailable(LibFunc_stpncpy_chk);
727 TLI.setUnavailable(LibFunc_strcat_chk);
728 TLI.setUnavailable(LibFunc_strcpy_chk);
729 TLI.setUnavailable(LibFunc_strlcat_chk);
730 TLI.setUnavailable(LibFunc_strlcpy_chk);
731 TLI.setUnavailable(LibFunc_strlen_chk);
732 TLI.setUnavailable(LibFunc_strncat_chk);
733 TLI.setUnavailable(LibFunc_strncpy_chk);
734 TLI.setUnavailable(LibFunc_vsnprintf_chk);
735 TLI.setUnavailable(LibFunc_vsprintf_chk);
736
737 // Various Posix system functions.
738 TLI.setUnavailable(LibFunc_access);
739 TLI.setUnavailable(LibFunc_chmod);
740 TLI.setUnavailable(LibFunc_chown);
741 TLI.setUnavailable(LibFunc_closedir);
742 TLI.setUnavailable(LibFunc_ctermid);
743 TLI.setUnavailable(LibFunc_execl);
744 TLI.setUnavailable(LibFunc_execle);
745 TLI.setUnavailable(LibFunc_execlp);
746 TLI.setUnavailable(LibFunc_execv);
747 TLI.setUnavailable(LibFunc_execvP);
748 TLI.setUnavailable(LibFunc_execve);
749 TLI.setUnavailable(LibFunc_execvp);
750 TLI.setUnavailable(LibFunc_execvpe);
751 TLI.setUnavailable(LibFunc_fork);
752 TLI.setUnavailable(LibFunc_fstat);
753 TLI.setUnavailable(LibFunc_fstatvfs);
754 TLI.setUnavailable(LibFunc_getenv);
755 TLI.setUnavailable(LibFunc_getitimer);
756 TLI.setUnavailable(LibFunc_getlogin_r);
757 TLI.setUnavailable(LibFunc_getpwnam);
758 TLI.setUnavailable(LibFunc_gettimeofday);
759 TLI.setUnavailable(LibFunc_lchown);
760 TLI.setUnavailable(LibFunc_lstat);
761 TLI.setUnavailable(LibFunc_mkdir);
762 TLI.setUnavailable(LibFunc_open);
763 TLI.setUnavailable(LibFunc_opendir);
764 TLI.setUnavailable(LibFunc_pclose);
765 TLI.setUnavailable(LibFunc_popen);
766 TLI.setUnavailable(LibFunc_pread);
767 TLI.setUnavailable(LibFunc_pwrite);
768 TLI.setUnavailable(LibFunc_read);
769 TLI.setUnavailable(LibFunc_readlink);
770 TLI.setUnavailable(LibFunc_realpath);
771 TLI.setUnavailable(LibFunc_rename);
772 TLI.setUnavailable(LibFunc_rmdir);
773 TLI.setUnavailable(LibFunc_setitimer);
774 TLI.setUnavailable(LibFunc_stat);
775 TLI.setUnavailable(LibFunc_statvfs);
776 TLI.setUnavailable(LibFunc_system);
777 TLI.setUnavailable(LibFunc_times);
778 TLI.setUnavailable(LibFunc_tmpfile);
779 TLI.setUnavailable(LibFunc_unlink);
780 TLI.setUnavailable(LibFunc_uname);
781 TLI.setUnavailable(LibFunc_unsetenv);
782 TLI.setUnavailable(LibFunc_utime);
783 TLI.setUnavailable(LibFunc_utimes);
784 TLI.setUnavailable(LibFunc_valloc);
785 TLI.setUnavailable(LibFunc_write);
786
787 // Miscellaneous other functions not provided.
788 TLI.setUnavailable(LibFunc_atomic_load);
789 TLI.setUnavailable(LibFunc_atomic_store);
790 TLI.setUnavailable(LibFunc___kmpc_alloc_shared);
791 TLI.setUnavailable(LibFunc___kmpc_free_shared);
792 TLI.setUnavailable(LibFunc_dunder_strndup);
793 TLI.setUnavailable(LibFunc_bcmp);
794 TLI.setUnavailable(LibFunc_bcopy);
795 TLI.setUnavailable(LibFunc_bzero);
796 TLI.setUnavailable(LibFunc_cabs);
797 TLI.setUnavailable(LibFunc_cabsf);
798 TLI.setUnavailable(LibFunc_cabsl);
799 TLI.setUnavailable(LibFunc_ffs);
800 TLI.setUnavailable(LibFunc_flockfile);
801 TLI.setUnavailable(LibFunc_fseeko);
802 TLI.setUnavailable(LibFunc_ftello);
803 TLI.setUnavailable(LibFunc_ftrylockfile);
804 TLI.setUnavailable(LibFunc_funlockfile);
805 TLI.setUnavailable(LibFunc_htonl);
806 TLI.setUnavailable(LibFunc_htons);
807 TLI.setUnavailable(LibFunc_isascii);
808 TLI.setUnavailable(LibFunc_memccpy);
809 TLI.setUnavailable(LibFunc_mempcpy);
810 TLI.setUnavailable(LibFunc_memrchr);
811 TLI.setUnavailable(LibFunc_ntohl);
812 TLI.setUnavailable(LibFunc_ntohs);
813 TLI.setUnavailable(LibFunc_reallocf);
814 TLI.setUnavailable(LibFunc_roundeven);
815 TLI.setUnavailable(LibFunc_roundevenf);
816 TLI.setUnavailable(LibFunc_roundevenl);
817 TLI.setUnavailable(LibFunc_stpcpy);
818 TLI.setUnavailable(LibFunc_stpncpy);
819 TLI.setUnavailable(LibFunc_strlcat);
820 TLI.setUnavailable(LibFunc_strlcpy);
821 TLI.setUnavailable(LibFunc_strndup);
822 TLI.setUnavailable(LibFunc_strnlen);
823 TLI.setUnavailable(LibFunc_toascii);
824 }
825
826 // As currently implemented in clang, NVPTX code has no standard library to
827 // speak of. Headers provide a standard-ish library implementation, but many
828 // of the signatures are wrong -- for example, many libm functions are not
829 // extern "C".
830 //
831 // libdevice, an IR library provided by nvidia, is linked in by the front-end,
832 // but only used functions are provided to llvm. Moreover, most of the
833 // functions in libdevice don't map precisely to standard library functions.
834 //
835 // FIXME: Having no standard library prevents e.g. many fastmath
836 // optimizations, so this situation should be fixed.
837 if (T.isNVPTX()) {
838 TLI.disableAllFunctions();
839 TLI.setAvailable(LibFunc_nvvm_reflect);
840 TLI.setAvailable(llvm::LibFunc_malloc);
841 TLI.setAvailable(llvm::LibFunc_free);
842
843 // TODO: We could enable the following two according to [0] but we haven't
844 // done an evaluation wrt. the performance implications.
845 // [0]
846 // https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#dynamic-global-memory-allocation-and-operations
847 //
848 // TLI.setAvailable(llvm::LibFunc_memcpy);
849 // TLI.setAvailable(llvm::LibFunc_memset);
850
851 TLI.setAvailable(llvm::LibFunc___kmpc_alloc_shared);
852 TLI.setAvailable(llvm::LibFunc___kmpc_free_shared);
853 } else {
854 TLI.setUnavailable(LibFunc_nvvm_reflect);
855 }
856
857 // These vec_malloc/free routines are only available on AIX.
858 if (!T.isOSAIX()) {
859 TLI.setUnavailable(LibFunc_vec_calloc);
860 TLI.setUnavailable(LibFunc_vec_malloc);
861 TLI.setUnavailable(LibFunc_vec_realloc);
862 TLI.setUnavailable(LibFunc_vec_free);
863 }
864
865 TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary, T);
866}
867
868TargetLibraryInfoImpl::TargetLibraryInfoImpl() {
869 // Default to everything being available.
870 memset(AvailableArray, -1, sizeof(AvailableArray));
871
872 initialize(*this, Triple(), StandardNames);
873}
874
875TargetLibraryInfoImpl::TargetLibraryInfoImpl(const Triple &T) {
876 // Default to everything being available.
877 memset(AvailableArray, -1, sizeof(AvailableArray));
878
879 initialize(*this, T, StandardNames);
880}
881
882TargetLibraryInfoImpl::TargetLibraryInfoImpl(const TargetLibraryInfoImpl &TLI)
883 : CustomNames(TLI.CustomNames), ShouldExtI32Param(TLI.ShouldExtI32Param),
884 ShouldExtI32Return(TLI.ShouldExtI32Return),
885 ShouldSignExtI32Param(TLI.ShouldSignExtI32Param),
886 ShouldSignExtI32Return(TLI.ShouldSignExtI32Return),
887 SizeOfInt(TLI.SizeOfInt) {
888 memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
889 VectorDescs = TLI.VectorDescs;
890 ScalarDescs = TLI.ScalarDescs;
891}
892
893TargetLibraryInfoImpl::TargetLibraryInfoImpl(TargetLibraryInfoImpl &&TLI)
894 : CustomNames(std::move(TLI.CustomNames)),
895 ShouldExtI32Param(TLI.ShouldExtI32Param),
896 ShouldExtI32Return(TLI.ShouldExtI32Return),
897 ShouldSignExtI32Param(TLI.ShouldSignExtI32Param),
898 ShouldSignExtI32Return(TLI.ShouldSignExtI32Return),
899 SizeOfInt(TLI.SizeOfInt) {
900 std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
901 AvailableArray);
902 VectorDescs = TLI.VectorDescs;
903 ScalarDescs = TLI.ScalarDescs;
904}
905
906TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(const TargetLibraryInfoImpl &TLI) {
907 CustomNames = TLI.CustomNames;
908 ShouldExtI32Param = TLI.ShouldExtI32Param;
909 ShouldExtI32Return = TLI.ShouldExtI32Return;
910 ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
911 ShouldSignExtI32Return = TLI.ShouldSignExtI32Return;
912 SizeOfInt = TLI.SizeOfInt;
913 memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
914 return *this;
915}
916
917TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(TargetLibraryInfoImpl &&TLI) {
918 CustomNames = std::move(TLI.CustomNames);
919 ShouldExtI32Param = TLI.ShouldExtI32Param;
920 ShouldExtI32Return = TLI.ShouldExtI32Return;
921 ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
922 ShouldSignExtI32Return = TLI.ShouldSignExtI32Return;
923 SizeOfInt = TLI.SizeOfInt;
924 std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
925 AvailableArray);
926 return *this;
927}
928
929static StringRef sanitizeFunctionName(StringRef funcName) {
930 // Filter out empty names and names containing null bytes, those can't be in
931 // our table.
932 if (funcName.empty() || funcName.contains('\0'))
933 return StringRef();
934
935 // Check for \01 prefix that is used to mangle __asm declarations and
936 // strip it if present.
937 return GlobalValue::dropLLVMManglingEscape(funcName);
938}
939
940bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName, LibFunc &F) const {
941 funcName = sanitizeFunctionName(funcName);
942 if (funcName.empty())
943 return false;
944
945 const auto *Start = std::begin(StandardNames);
946 const auto *End = std::end(StandardNames);
947 const auto *I = std::lower_bound(Start, End, funcName);
948 if (I != End && *I == funcName) {
949 F = (LibFunc)(I - Start);
950 return true;
951 }
952 return false;
953}
954
955// Return true if ArgTy matches Ty.
956
957static bool matchType(FuncArgTypeID ArgTy, const Type *Ty, unsigned IntBits,
958 unsigned SizeTBits) {
959 switch (ArgTy) {
960 case Void:
961 return Ty->isVoidTy();
962 case Bool:
963 return Ty->isIntegerTy(8);
964 case Int16:
965 return Ty->isIntegerTy(16);
966 case Int32:
967 return Ty->isIntegerTy(32);
968 case Int:
969 return Ty->isIntegerTy(IntBits);
970 case IntPlus:
971 return Ty->isIntegerTy() && Ty->getPrimitiveSizeInBits() >= IntBits;
972 case IntX:
973 return Ty->isIntegerTy();
974 case Long:
975 // TODO: Figure out and use long size.
976 return Ty->isIntegerTy() && Ty->getPrimitiveSizeInBits() >= IntBits;
977 case Int64:
978 return Ty->isIntegerTy(64);
979 case LLong:
980 return Ty->isIntegerTy(64);
981 case SizeT:
982 case SSizeT:
983 return Ty->isIntegerTy(SizeTBits);
984 case Flt:
985 return Ty->isFloatTy();
986 case Dbl:
987 return Ty->isDoubleTy();
988 // TODO: Tighten this up.
989 case LDbl:
990 return Ty->isFloatingPointTy();
991 case Floating:
992 return Ty->isFloatingPointTy();
993 case Ptr:
994 return Ty->isPointerTy();
995 case Struct:
996 return Ty->isStructTy();
997 default:
998 break;
999 }
1000
1001 llvm_unreachable("Invalid type");
1002}
1003
1004bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy,
1005 LibFunc F,
1006 const Module &M) const {
1007 unsigned NumParams = FTy.getNumParams();
1008
1009 switch (F) {
1010 // Special handling for <complex.h> functions:
1011 case LibFunc_cabs:
1012 case LibFunc_cabsf:
1013 case LibFunc_cabsl: {
1014 Type *RetTy = FTy.getReturnType();
1015 if (!RetTy->isFloatingPointTy())
1016 return false;
1017
1018 Type *ParamTy = FTy.getParamType(0);
1019 // NOTE: These prototypes are target specific and currently support
1020 // "complex" passed as an array or discrete real & imaginary parameters.
1021 // Add other calling conventions to enable libcall optimizations.
1022 if (NumParams == 1)
1023 return (ParamTy->isArrayTy() && ParamTy->getArrayNumElements() == 2 &&
1024 ParamTy->getArrayElementType() == RetTy);
1025 else if (NumParams == 2)
1026 return ParamTy == RetTy && FTy.getParamType(1) == RetTy;
1027
1028 return false;
1029 }
1030 // Special handling for the sincospi functions that return either
1031 // a struct or vector:
1032 case LibFunc_sincospi_stret:
1033 case LibFunc_sincospif_stret: {
1034 if (NumParams != 1)
1035 return false;
1036
1037 Type *RetTy = FTy.getReturnType();
1038 Type *ParamTy = FTy.getParamType(0);
1039 if (auto *Ty = dyn_cast<StructType>(RetTy)) {
1040 if (Ty->getNumElements() != 2)
1041 return false;
1042 return (Ty->getElementType(0) == ParamTy &&
1043 Ty->getElementType(1) == ParamTy);
1044 }
1045
1046 if (auto *Ty = dyn_cast<FixedVectorType>(RetTy)) {
1047 if (Ty->getNumElements() != 2)
1048 return false;
1049 return Ty->getElementType() == ParamTy;
1050 }
1051
1052 return false;
1053 }
1054
1055 default:
1056 break;
1057 }
1058
1059 unsigned IntBits = getIntSize();
1060 unsigned SizeTBits = getSizeTSize(M);
1061 unsigned Idx = 0;
1062
1063 // Iterate over the type ids in the function prototype, matching each
1064 // against the function's type FTy, starting with its return type.
1065 // Return true if both match in number and kind, inclduing the ellipsis.
1066 Type *Ty = FTy.getReturnType(), *LastTy = Ty;
1067 const auto &ProtoTypes = Signatures[F];
1068 for (auto TyID : ProtoTypes) {
1069 if (Idx && TyID == Void)
1070 // Except in the first position where it designates the function's
1071 // return type Void ends the argument list.
1072 break;
1073
1074 if (TyID == Ellip) {
1075 // The ellipsis ends the protoype list but is not a part of FTy's
1076 // argument list. Except when it's last it must be followed by
1077 // Void.
1078 assert(Idx == ProtoTypes.size() - 1 || ProtoTypes[Idx + 1] == Void);
1079 return FTy.isFunctionVarArg();
1080 }
1081
1082 if (TyID == Same) {
1083 assert(Idx != 0 && "Type ID 'Same' must not be first!");
1084 if (Ty != LastTy)
1085 return false;
1086 } else {
1087 if (!Ty || !matchType(TyID, Ty, IntBits, SizeTBits))
1088 return false;
1089 LastTy = Ty;
1090 }
1091
1092 if (Idx == NumParams) {
1093 // There's at least one and at most two more type ids than there are
1094 // arguments in FTy's argument list.
1095 Ty = nullptr;
1096 ++Idx;
1097 continue;
1098 }
1099
1100 Ty = FTy.getParamType(Idx++);
1101 }
1102
1103 // Return success only if all entries on both lists have been processed
1104 // and the function is not a variadic one.
1105 return Idx == NumParams + 1 && !FTy.isFunctionVarArg();
1106}
1107
1108bool TargetLibraryInfoImpl::getLibFunc(const Function &FDecl,
1109 LibFunc &F) const {
1110 // Intrinsics don't overlap w/libcalls; if our module has a large number of
1111 // intrinsics, this ends up being an interesting compile time win since we
1112 // avoid string normalization and comparison.
1113 if (FDecl.isIntrinsic()) return false;
1114
1115 const Module *M = FDecl.getParent();
1116 assert(M && "Expecting FDecl to be connected to a Module.");
1117
1118 return getLibFunc(FDecl.getName(), F) &&
1119 isValidProtoForLibFunc(*FDecl.getFunctionType(), F, *M);
1120}
1121
1122void TargetLibraryInfoImpl::disableAllFunctions() {
1123 memset(AvailableArray, 0, sizeof(AvailableArray));
1124}
1125
1126static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) {
1127 return LHS.ScalarFnName < RHS.ScalarFnName;
1128}
1129
1130static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) {
1131 return LHS.VectorFnName < RHS.VectorFnName;
1132}
1133
1134static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) {
1135 return LHS.ScalarFnName < S;
1136}
1137
1138void TargetLibraryInfoImpl::addVectorizableFunctions(ArrayRef<VecDesc> Fns) {
1139 llvm::append_range(VectorDescs, Fns);
1140 llvm::sort(VectorDescs, compareByScalarFnName);
1141
1142 llvm::append_range(ScalarDescs, Fns);
1143 llvm::sort(ScalarDescs, compareByVectorFnName);
1144}
1145
1146void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib(
1147 enum VectorLibrary VecLib, const llvm::Triple &TargetTriple) {
1148 switch (VecLib) {
1149 case Accelerate: {
1150 const VecDesc VecFuncs[] = {
1151 #define TLI_DEFINE_ACCELERATE_VECFUNCS
1152 #include "llvm/Analysis/VecFuncs.def"
1153 };
1154 addVectorizableFunctions(VecFuncs);
1155 break;
1156 }
1157 case DarwinLibSystemM: {
1158 const VecDesc VecFuncs[] = {
1159 #define TLI_DEFINE_DARWIN_LIBSYSTEM_M_VECFUNCS
1160 #include "llvm/Analysis/VecFuncs.def"
1161 };
1162 addVectorizableFunctions(VecFuncs);
1163 break;
1164 }
1165 case LIBMVEC_X86: {
1166 const VecDesc VecFuncs[] = {
1167 #define TLI_DEFINE_LIBMVEC_X86_VECFUNCS
1168 #include "llvm/Analysis/VecFuncs.def"
1169 };
1170 addVectorizableFunctions(VecFuncs);
1171 break;
1172 }
1173 case MASSV: {
1174 const VecDesc VecFuncs[] = {
1175 #define TLI_DEFINE_MASSV_VECFUNCS
1176 #include "llvm/Analysis/VecFuncs.def"
1177 };
1178 addVectorizableFunctions(VecFuncs);
1179 break;
1180 }
1181 case SVML: {
1182 const VecDesc VecFuncs[] = {
1183 #define TLI_DEFINE_SVML_VECFUNCS
1184 #include "llvm/Analysis/VecFuncs.def"
1185 };
1186 addVectorizableFunctions(VecFuncs);
1187 break;
1188 }
1189 case SLEEFGNUABI: {
1190 const VecDesc VecFuncs_VF2[] = {
1191#define TLI_DEFINE_SLEEFGNUABI_VF2_VECFUNCS
1192#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF) {SCAL, VEC, VF, /* MASK = */ false},
1193#include "llvm/Analysis/VecFuncs.def"
1194 };
1195 const VecDesc VecFuncs_VF4[] = {
1196#define TLI_DEFINE_SLEEFGNUABI_VF4_VECFUNCS
1197#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF) {SCAL, VEC, VF, /* MASK = */ false},
1198#include "llvm/Analysis/VecFuncs.def"
1199 };
1200 const VecDesc VecFuncs_VFScalable[] = {
1201#define TLI_DEFINE_SLEEFGNUABI_SCALABLE_VECFUNCS
1202#define TLI_DEFINE_VECFUNC(SCAL, VEC, VF, MASK) {SCAL, VEC, VF, MASK},
1203#include "llvm/Analysis/VecFuncs.def"
1204 };
1205
1206 switch (TargetTriple.getArch()) {
1207 default:
1208 break;
1209 case llvm::Triple::aarch64:
1210 case llvm::Triple::aarch64_be:
1211 addVectorizableFunctions(VecFuncs_VF2);
1212 addVectorizableFunctions(VecFuncs_VF4);
1213 addVectorizableFunctions(VecFuncs_VFScalable);
1214 break;
1215 }
1216 break;
1217 }
1218 case NoLibrary:
1219 break;
1220 }
1221}
1222
1223bool TargetLibraryInfoImpl::isFunctionVectorizable(StringRef funcName) const {
1224 funcName = sanitizeFunctionName(funcName);
1225 if (funcName.empty())
1226 return false;
1227
1228 std::vector<VecDesc>::const_iterator I =
1229 llvm::lower_bound(VectorDescs, funcName, compareWithScalarFnName);
1230 return I != VectorDescs.end() && StringRef(I->ScalarFnName) == funcName;
1231}
1232
1233StringRef TargetLibraryInfoImpl::getVectorizedFunction(StringRef F,
1234 const ElementCount &VF,
1235 bool Masked) const {
1236 F = sanitizeFunctionName(F);
1237 if (F.empty())
1238 return F;
1239 std::vector<VecDesc>::const_iterator I =
1240 llvm::lower_bound(VectorDescs, F, compareWithScalarFnName);
1241 while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == F) {
1242 if ((I->VectorizationFactor == VF) && (I->Masked == Masked))
1243 return I->VectorFnName;
1244 ++I;
1245 }
1246 return StringRef();
1247}
1248
1249TargetLibraryInfo TargetLibraryAnalysis::run(const Function &F,
1250 FunctionAnalysisManager &) {
1251 if (!BaselineInfoImpl)
1252 BaselineInfoImpl =
1253 TargetLibraryInfoImpl(Triple(F.getParent()->getTargetTriple()));
1254 return TargetLibraryInfo(*BaselineInfoImpl, &F);
1255}
1256
1257unsigned TargetLibraryInfoImpl::getWCharSize(const Module &M) const {
1258 if (auto *ShortWChar = cast_or_null<ConstantAsMetadata>(
1259 M.getModuleFlag("wchar_size")))
1260 return cast<ConstantInt>(ShortWChar->getValue())->getZExtValue();
1261 return 0;
1262}
1263
1264unsigned TargetLibraryInfoImpl::getSizeTSize(const Module &M) const {
1265 // There is really no guarantee that sizeof(size_t) is equal to sizeof(int*).
1266 // If that isn't true then it should be possible to derive the SizeTTy from
1267 // the target triple here instead and do an early return.
1268
1269 // Historically LLVM assume that size_t has same size as intptr_t (hence
1270 // deriving the size from sizeof(int*) in address space zero). This should
1271 // work for most targets. For future consideration: DataLayout also implement
1272 // getIndexSizeInBits which might map better to size_t compared to
1273 // getPointerSizeInBits. Hard coding address space zero here might be
1274 // unfortunate as well. Maybe getDefaultGlobalsAddressSpace() or
1275 // getAllocaAddrSpace() is better.
1276 unsigned AddressSpace = 0;
1277 return M.getDataLayout().getPointerSizeInBits(AddressSpace);
1278}
1279
1280TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass()
1281 : ImmutablePass(ID), TLA(TargetLibraryInfoImpl()) {
1282 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1283}
1284
1285TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(const Triple &T)
1286 : ImmutablePass(ID), TLA(TargetLibraryInfoImpl(T)) {
1287 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1288}
1289
1290TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(
1291 const TargetLibraryInfoImpl &TLIImpl)
1292 : ImmutablePass(ID), TLA(TLIImpl) {
1293 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1294}
1295
1296AnalysisKey TargetLibraryAnalysis::Key;
1297
1298// Register the basic pass.
1299INITIALIZE_PASS(TargetLibraryInfoWrapperPass, "targetlibinfo",
1300 "Target Library Information", false, true)
1301char TargetLibraryInfoWrapperPass::ID = 0;
1302
1303void TargetLibraryInfoWrapperPass::anchor() {}
1304
1305void TargetLibraryInfoImpl::getWidestVF(StringRef ScalarF,
1306 ElementCount &FixedVF,
1307 ElementCount &ScalableVF) const {
1308 ScalarF = sanitizeFunctionName(ScalarF);
1309 // Use '0' here because a type of the form <vscale x 1 x ElTy> is not the
1310 // same as a scalar.
1311 ScalableVF = ElementCount::getScalable(0);
1312 FixedVF = ElementCount::getFixed(1);
1313 if (ScalarF.empty())
1314 return;
1315
1316 std::vector<VecDesc>::const_iterator I =
1317 llvm::lower_bound(VectorDescs, ScalarF, compareWithScalarFnName);
1318 while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == ScalarF) {
1319 ElementCount *VF =
1320 I->VectorizationFactor.isScalable() ? &ScalableVF : &FixedVF;
1321 if (ElementCount::isKnownGT(I->VectorizationFactor, *VF))
1322 *VF = I->VectorizationFactor;
1323 ++I;
1324 }
1325}
clEnumValN
#define clEnumValN(ENUMVAL, FLAGNAME, DESC)
Definition: CommandLine.h:678
Constants.h
This file contains the declarations for the subclasses of Constant, which represent the different fla...
RetTy
return RetTy
Definition: DeadArgumentElimination.cpp:360
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:352
End
bool End
Definition: ELF_riscv.cpp:464
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())
hasSinCosPiStret
static bool hasSinCosPiStret(const Triple &T)
Definition: TargetLibraryInfo.cpp:78
sanitizeFunctionName
static StringRef sanitizeFunctionName(StringRef funcName)
Definition: TargetLibraryInfo.cpp:929
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:152
matchType
static bool matchType(FuncArgTypeID ArgTy, const Type *Ty, unsigned IntBits, unsigned SizeTBits)
Definition: TargetLibraryInfo.cpp:957
hasBcmp
static bool hasBcmp(const Triple &TT)
Definition: TargetLibraryInfo.cpp:96
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")))
compareByScalarFnName
static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS)
Definition: TargetLibraryInfo.cpp:1126
compareByVectorFnName
static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS)
Definition: TargetLibraryInfo.cpp:1130
Signatures
static const FuncProtoTy Signatures[]
Definition: TargetLibraryInfo.cpp:70
isCallingConvCCompatible
static bool isCallingConvCCompatible(CallingConv::ID CC, StringRef TT, FunctionType *FuncTy)
Definition: TargetLibraryInfo.cpp:106
FuncArgTypeID
FuncArgTypeID
Definition: TargetLibraryInfo.cpp:45
IntPlus
@ IntPlus
Definition: TargetLibraryInfo.cpp:51
Floating
@ Floating
Definition: TargetLibraryInfo.cpp:61
Struct
@ Struct
Definition: TargetLibraryInfo.cpp:63
SSizeT
@ SSizeT
Definition: TargetLibraryInfo.cpp:57
FuncProtoTy
std::array< FuncArgTypeID, 8 > FuncProtoTy
Definition: TargetLibraryInfo.cpp:68
compareWithScalarFnName
static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S)
Definition: TargetLibraryInfo.cpp:1134
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:620
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:1190
llvm::CallBase::getCallingConv
CallingConv::ID getCallingConv() const
Definition: InstrTypes.h:1471
llvm::CallBase::getFunctionType
FunctionType * getFunctionType() const
Definition: InstrTypes.h:1270
llvm::ElementCount::getScalable
static constexpr ElementCount getScalable(ScalarTy MinVal)
Definition: TypeSize.h:294
llvm::ElementCount::getFixed
static constexpr ElementCount getFixed(ScalarTy MinVal)
Definition: TypeSize.h:291
llvm::Function::getFunctionType
FunctionType * getFunctionType() const
Returns the FunctionType for me.
Definition: Function.h:174
llvm::Function::isIntrinsic
bool isIntrinsic() const
isIntrinsic - Returns true if the function's name starts with "llvm.".
Definition: Function.h:209
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:70
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:258
llvm::PassRegistry::getPassRegistry
static PassRegistry * getPassRegistry()
getPassRegistry - Access the global registry object, which is automatically initialized at applicatio...
Definition: PassRegistry.cpp:24
llvm::StringLiteral
A wrapper around a string literal that serves as a proxy for constructing global tables of StringRefs...
Definition: StringRef.h:851
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:422
llvm::TargetLibraryAnalysis::run
TargetLibraryInfo run(const Function &F, FunctionAnalysisManager &)
Definition: TargetLibraryInfo.cpp:1249
llvm::TargetLibraryInfoImpl
Implementation of the target library information.
Definition: TargetLibraryInfo.h:51
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:181
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:188
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:1257
llvm::TargetLibraryInfoImpl::getLibFunc
bool getLibFunc(StringRef funcName, LibFunc &F) const
Searches for a particular function name.
Definition: TargetLibraryInfo.cpp:940
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:1305
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:164
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:194
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:138
llvm::TargetLibraryInfoImpl::getIntSize
unsigned getIntSize() const
Get size of a C-level int or unsigned int, in bits.
Definition: TargetLibraryInfo.h:212
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:1146
llvm::TargetLibraryInfoImpl::setIntSize
void setIntSize(unsigned Bits)
Initialize the C-level size of an integer.
Definition: TargetLibraryInfo.h:217
llvm::TargetLibraryInfoImpl::getSizeTSize
unsigned getSizeTSize(const Module &M) const
Returns the size of the size_t type in bits.
Definition: TargetLibraryInfo.cpp:1264
llvm::TargetLibraryInfoImpl::addVectorizableFunctions
void addVectorizableFunctions(ArrayRef< VecDesc > Fns)
Add a set of scalar -> vector mappings, queryable via getVectorizedFunction and getScalarizedFunction...
Definition: TargetLibraryInfo.cpp:1138
llvm::TargetLibraryInfoImpl::isCallingConvCCompatible
static bool isCallingConvCCompatible(CallBase *CI)
Returns true if call site / callee has cdecl-compatible calling conventions.
Definition: TargetLibraryInfo.cpp:137
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:200
llvm::TargetLibraryInfoImpl::operator=
TargetLibraryInfoImpl & operator=(const TargetLibraryInfoImpl &TLI)
Definition: TargetLibraryInfo.cpp:906
llvm::TargetLibraryInfoImpl::disableAllFunctions
void disableAllFunctions()
Disables all builtins.
Definition: TargetLibraryInfo.cpp:1122
llvm::TargetLibraryInfoImpl::VectorLibrary
VectorLibrary
List of known vector-functions libraries.
Definition: TargetLibraryInfo.h:92
llvm::TargetLibraryInfoImpl::setUnavailable
void setUnavailable(LibFunc F)
Forces a function to be marked as unavailable.
Definition: TargetLibraryInfo.h:127
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:1233
llvm::TargetLibraryInfoImpl::setAvailable
void setAvailable(LibFunc F)
Forces a function to be marked as available.
Definition: TargetLibraryInfo.h:132
llvm::TargetLibraryInfo
Provides information about what library functions are available for the current target.
Definition: TargetLibraryInfo.h:237
llvm::TargetLibraryInfo::initExtensionsForTriple
static void initExtensionsForTriple(bool &ShouldExtI32Param, bool &ShouldExtI32Return, bool &ShouldSignExtI32Param, bool &ShouldSignExtI32Return, const Triple &T)
Definition: TargetLibraryInfo.h:400
llvm::Triple
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
llvm::Triple::Emscripten
@ Emscripten
Definition: Triple.h:224
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:356
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:253
llvm::Type::isPointerTy
bool isPointerTy() const
True if this is an instance of PointerType.
Definition: Type.h:256
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:250
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:229
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::VersionTuple
Represents a version number in the form major[.minor[.subminor[.build]]].
Definition: VersionTuple.h:31
llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownGT
static constexpr bool isKnownGT(const FixedOrScalableQuantity &LHS, const FixedOrScalableQuantity &RHS)
Definition: TypeSize.h:205
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:703
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 a range to a container.
Definition: STLExtras.h:2129
llvm::sort
void sort(IteratorTy Start, IteratorTy End)
Definition: STLExtras.h:1744
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:1999
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:2038
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:1946
llvm::initializeTargetLibraryInfoWrapperPassPass
void initializeTargetLibraryInfoWrapperPassPass(PassRegistry &)
std
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:69
llvm::VecDesc
Describes a possible vectorization of a function.
Definition: TargetLibraryInfo.h:30
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