LLVM  3.7.0
TargetLibraryInfo.cpp
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1 //===-- TargetLibraryInfo.cpp - Runtime library information ----------------==//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements the TargetLibraryInfo class.
11 //
12 //===----------------------------------------------------------------------===//
13 
15 #include "llvm/ADT/Triple.h"
17 using namespace llvm;
18 
20  "vector-library", cl::Hidden, cl::desc("Vector functions library"),
23  "No vector functions library"),
25  "Accelerate framework"),
26  clEnumValEnd));
27 
28 const char *const TargetLibraryInfoImpl::StandardNames[LibFunc::NumLibFuncs] = {
29 #define TLI_DEFINE_STRING
30 #include "llvm/Analysis/TargetLibraryInfo.def"
31 };
32 
33 static bool hasSinCosPiStret(const Triple &T) {
34  // Only Darwin variants have _stret versions of combined trig functions.
35  if (!T.isOSDarwin())
36  return false;
37 
38  // The ABI is rather complicated on x86, so don't do anything special there.
39  if (T.getArch() == Triple::x86)
40  return false;
41 
42  if (T.isMacOSX() && T.isMacOSXVersionLT(10, 9))
43  return false;
44 
45  if (T.isiOS() && T.isOSVersionLT(7, 0))
46  return false;
47 
48  return true;
49 }
50 
51 /// initialize - Initialize the set of available library functions based on the
52 /// specified target triple. This should be carefully written so that a missing
53 /// target triple gets a sane set of defaults.
54 static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
55  const char *const *StandardNames) {
56 #ifndef NDEBUG
57  // Verify that the StandardNames array is in alphabetical order.
58  for (unsigned F = 1; F < LibFunc::NumLibFuncs; ++F) {
59  if (strcmp(StandardNames[F-1], StandardNames[F]) >= 0)
60  llvm_unreachable("TargetLibraryInfoImpl function names must be sorted");
61  }
62 #endif // !NDEBUG
63 
64  // There are no library implementations of mempcy and memset for AMD gpus and
65  // these can be difficult to lower in the backend.
66  if (T.getArch() == Triple::r600 ||
67  T.getArch() == Triple::amdgcn) {
68  TLI.setUnavailable(LibFunc::memcpy);
69  TLI.setUnavailable(LibFunc::memset);
70  TLI.setUnavailable(LibFunc::memset_pattern16);
71  return;
72  }
73 
74  // memset_pattern16 is only available on iOS 3.0 and Mac OS X 10.5 and later.
75  if (T.isMacOSX()) {
76  if (T.isMacOSXVersionLT(10, 5))
77  TLI.setUnavailable(LibFunc::memset_pattern16);
78  } else if (T.isiOS()) {
79  if (T.isOSVersionLT(3, 0))
80  TLI.setUnavailable(LibFunc::memset_pattern16);
81  } else {
82  TLI.setUnavailable(LibFunc::memset_pattern16);
83  }
84 
85  if (!hasSinCosPiStret(T)) {
86  TLI.setUnavailable(LibFunc::sinpi);
87  TLI.setUnavailable(LibFunc::sinpif);
88  TLI.setUnavailable(LibFunc::cospi);
89  TLI.setUnavailable(LibFunc::cospif);
90  TLI.setUnavailable(LibFunc::sincospi_stret);
91  TLI.setUnavailable(LibFunc::sincospif_stret);
92  }
93 
94  if (T.isMacOSX() && T.getArch() == Triple::x86 &&
95  !T.isMacOSXVersionLT(10, 7)) {
96  // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
97  // we don't care about) have two versions; on recent OSX, the one we want
98  // has a $UNIX2003 suffix. The two implementations are identical except
99  // for the return value in some edge cases. However, we don't want to
100  // generate code that depends on the old symbols.
101  TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003");
102  TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003");
103  }
104 
105  // iprintf and friends are only available on XCore and TCE.
106  if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
107  TLI.setUnavailable(LibFunc::iprintf);
108  TLI.setUnavailable(LibFunc::siprintf);
109  TLI.setUnavailable(LibFunc::fiprintf);
110  }
111 
112  if (T.isOSWindows() && !T.isOSCygMing()) {
113  // Win32 does not support long double
114  TLI.setUnavailable(LibFunc::acosl);
115  TLI.setUnavailable(LibFunc::asinl);
116  TLI.setUnavailable(LibFunc::atanl);
117  TLI.setUnavailable(LibFunc::atan2l);
118  TLI.setUnavailable(LibFunc::ceill);
119  TLI.setUnavailable(LibFunc::copysignl);
120  TLI.setUnavailable(LibFunc::cosl);
121  TLI.setUnavailable(LibFunc::coshl);
122  TLI.setUnavailable(LibFunc::expl);
123  TLI.setUnavailable(LibFunc::fabsf); // Win32 and Win64 both lack fabsf
124  TLI.setUnavailable(LibFunc::fabsl);
125  TLI.setUnavailable(LibFunc::floorl);
126  TLI.setUnavailable(LibFunc::fmaxl);
127  TLI.setUnavailable(LibFunc::fminl);
128  TLI.setUnavailable(LibFunc::fmodl);
129  TLI.setUnavailable(LibFunc::frexpl);
130  TLI.setUnavailable(LibFunc::ldexpf);
131  TLI.setUnavailable(LibFunc::ldexpl);
132  TLI.setUnavailable(LibFunc::logl);
133  TLI.setUnavailable(LibFunc::modfl);
134  TLI.setUnavailable(LibFunc::powl);
135  TLI.setUnavailable(LibFunc::sinl);
136  TLI.setUnavailable(LibFunc::sinhl);
137  TLI.setUnavailable(LibFunc::sqrtl);
138  TLI.setUnavailable(LibFunc::tanl);
139  TLI.setUnavailable(LibFunc::tanhl);
140 
141  // Win32 only has C89 math
142  TLI.setUnavailable(LibFunc::acosh);
143  TLI.setUnavailable(LibFunc::acoshf);
144  TLI.setUnavailable(LibFunc::acoshl);
145  TLI.setUnavailable(LibFunc::asinh);
146  TLI.setUnavailable(LibFunc::asinhf);
147  TLI.setUnavailable(LibFunc::asinhl);
148  TLI.setUnavailable(LibFunc::atanh);
149  TLI.setUnavailable(LibFunc::atanhf);
150  TLI.setUnavailable(LibFunc::atanhl);
151  TLI.setUnavailable(LibFunc::cbrt);
152  TLI.setUnavailable(LibFunc::cbrtf);
153  TLI.setUnavailable(LibFunc::cbrtl);
154  TLI.setUnavailable(LibFunc::exp2);
155  TLI.setUnavailable(LibFunc::exp2f);
156  TLI.setUnavailable(LibFunc::exp2l);
157  TLI.setUnavailable(LibFunc::expm1);
158  TLI.setUnavailable(LibFunc::expm1f);
159  TLI.setUnavailable(LibFunc::expm1l);
160  TLI.setUnavailable(LibFunc::log2);
161  TLI.setUnavailable(LibFunc::log2f);
162  TLI.setUnavailable(LibFunc::log2l);
163  TLI.setUnavailable(LibFunc::log1p);
164  TLI.setUnavailable(LibFunc::log1pf);
165  TLI.setUnavailable(LibFunc::log1pl);
166  TLI.setUnavailable(LibFunc::logb);
167  TLI.setUnavailable(LibFunc::logbf);
168  TLI.setUnavailable(LibFunc::logbl);
169  TLI.setUnavailable(LibFunc::nearbyint);
170  TLI.setUnavailable(LibFunc::nearbyintf);
171  TLI.setUnavailable(LibFunc::nearbyintl);
172  TLI.setUnavailable(LibFunc::rint);
173  TLI.setUnavailable(LibFunc::rintf);
174  TLI.setUnavailable(LibFunc::rintl);
175  TLI.setUnavailable(LibFunc::round);
176  TLI.setUnavailable(LibFunc::roundf);
177  TLI.setUnavailable(LibFunc::roundl);
178  TLI.setUnavailable(LibFunc::trunc);
179  TLI.setUnavailable(LibFunc::truncf);
180  TLI.setUnavailable(LibFunc::truncl);
181 
182  // Win32 provides some C99 math with mangled names
183  TLI.setAvailableWithName(LibFunc::copysign, "_copysign");
184 
185  if (T.getArch() == Triple::x86) {
186  // Win32 on x86 implements single-precision math functions as macros
187  TLI.setUnavailable(LibFunc::acosf);
188  TLI.setUnavailable(LibFunc::asinf);
189  TLI.setUnavailable(LibFunc::atanf);
190  TLI.setUnavailable(LibFunc::atan2f);
191  TLI.setUnavailable(LibFunc::ceilf);
192  TLI.setUnavailable(LibFunc::copysignf);
193  TLI.setUnavailable(LibFunc::cosf);
194  TLI.setUnavailable(LibFunc::coshf);
195  TLI.setUnavailable(LibFunc::expf);
196  TLI.setUnavailable(LibFunc::floorf);
197  TLI.setUnavailable(LibFunc::fminf);
198  TLI.setUnavailable(LibFunc::fmaxf);
199  TLI.setUnavailable(LibFunc::fmodf);
200  TLI.setUnavailable(LibFunc::logf);
201  TLI.setUnavailable(LibFunc::powf);
202  TLI.setUnavailable(LibFunc::sinf);
203  TLI.setUnavailable(LibFunc::sinhf);
204  TLI.setUnavailable(LibFunc::sqrtf);
205  TLI.setUnavailable(LibFunc::tanf);
206  TLI.setUnavailable(LibFunc::tanhf);
207  }
208 
209  // Win32 does *not* provide provide these functions, but they are
210  // generally available on POSIX-compliant systems:
212  TLI.setUnavailable(LibFunc::bcmp);
213  TLI.setUnavailable(LibFunc::bcopy);
214  TLI.setUnavailable(LibFunc::bzero);
215  TLI.setUnavailable(LibFunc::chmod);
216  TLI.setUnavailable(LibFunc::chown);
217  TLI.setUnavailable(LibFunc::closedir);
218  TLI.setUnavailable(LibFunc::ctermid);
219  TLI.setUnavailable(LibFunc::fdopen);
220  TLI.setUnavailable(LibFunc::ffs);
221  TLI.setUnavailable(LibFunc::fileno);
222  TLI.setUnavailable(LibFunc::flockfile);
223  TLI.setUnavailable(LibFunc::fseeko);
224  TLI.setUnavailable(LibFunc::fstat);
225  TLI.setUnavailable(LibFunc::fstatvfs);
226  TLI.setUnavailable(LibFunc::ftello);
227  TLI.setUnavailable(LibFunc::ftrylockfile);
228  TLI.setUnavailable(LibFunc::funlockfile);
229  TLI.setUnavailable(LibFunc::getc_unlocked);
230  TLI.setUnavailable(LibFunc::getitimer);
231  TLI.setUnavailable(LibFunc::getlogin_r);
232  TLI.setUnavailable(LibFunc::getpwnam);
233  TLI.setUnavailable(LibFunc::gettimeofday);
234  TLI.setUnavailable(LibFunc::htonl);
235  TLI.setUnavailable(LibFunc::htons);
236  TLI.setUnavailable(LibFunc::lchown);
237  TLI.setUnavailable(LibFunc::lstat);
238  TLI.setUnavailable(LibFunc::memccpy);
239  TLI.setUnavailable(LibFunc::mkdir);
240  TLI.setUnavailable(LibFunc::ntohl);
241  TLI.setUnavailable(LibFunc::ntohs);
242  TLI.setUnavailable(LibFunc::open);
243  TLI.setUnavailable(LibFunc::opendir);
244  TLI.setUnavailable(LibFunc::pclose);
245  TLI.setUnavailable(LibFunc::popen);
246  TLI.setUnavailable(LibFunc::pread);
247  TLI.setUnavailable(LibFunc::pwrite);
249  TLI.setUnavailable(LibFunc::readlink);
250  TLI.setUnavailable(LibFunc::realpath);
251  TLI.setUnavailable(LibFunc::rmdir);
252  TLI.setUnavailable(LibFunc::setitimer);
253  TLI.setUnavailable(LibFunc::stat);
254  TLI.setUnavailable(LibFunc::statvfs);
255  TLI.setUnavailable(LibFunc::stpcpy);
256  TLI.setUnavailable(LibFunc::stpncpy);
257  TLI.setUnavailable(LibFunc::strcasecmp);
258  TLI.setUnavailable(LibFunc::strncasecmp);
259  TLI.setUnavailable(LibFunc::times);
260  TLI.setUnavailable(LibFunc::uname);
261  TLI.setUnavailable(LibFunc::unlink);
262  TLI.setUnavailable(LibFunc::unsetenv);
263  TLI.setUnavailable(LibFunc::utime);
264  TLI.setUnavailable(LibFunc::utimes);
266 
267  // Win32 does *not* provide provide these functions, but they are
268  // specified by C99:
269  TLI.setUnavailable(LibFunc::atoll);
270  TLI.setUnavailable(LibFunc::frexpf);
271  TLI.setUnavailable(LibFunc::llabs);
272  }
273 
274  switch (T.getOS()) {
275  case Triple::MacOSX:
276  // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
277  // and their names are __exp10 and __exp10f. exp10l is not available on
278  // OS X or iOS.
279  TLI.setUnavailable(LibFunc::exp10l);
280  if (T.isMacOSXVersionLT(10, 9)) {
281  TLI.setUnavailable(LibFunc::exp10);
282  TLI.setUnavailable(LibFunc::exp10f);
283  } else {
284  TLI.setAvailableWithName(LibFunc::exp10, "__exp10");
285  TLI.setAvailableWithName(LibFunc::exp10f, "__exp10f");
286  }
287  break;
288  case Triple::IOS:
289  TLI.setUnavailable(LibFunc::exp10l);
290  if (T.isOSVersionLT(7, 0)) {
291  TLI.setUnavailable(LibFunc::exp10);
292  TLI.setUnavailable(LibFunc::exp10f);
293  } else {
294  TLI.setAvailableWithName(LibFunc::exp10, "__exp10");
295  TLI.setAvailableWithName(LibFunc::exp10f, "__exp10f");
296  }
297  break;
298  case Triple::Linux:
299  // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
300  // buggy prior to glibc version 2.18. Until this version is widely deployed
301  // or we have a reasonable detection strategy, we cannot use exp10 reliably
302  // on Linux.
303  //
304  // Fall through to disable all of them.
305  default:
306  TLI.setUnavailable(LibFunc::exp10);
307  TLI.setUnavailable(LibFunc::exp10f);
308  TLI.setUnavailable(LibFunc::exp10l);
309  }
310 
311  // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
312  // Linux (GLIBC):
313  // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
314  // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsl.c
315  // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
316  switch (T.getOS()) {
317  case Triple::Darwin:
318  case Triple::MacOSX:
319  case Triple::IOS:
320  case Triple::FreeBSD:
321  case Triple::Linux:
322  break;
323  default:
324  TLI.setUnavailable(LibFunc::ffsl);
325  }
326 
327  // ffsll is available on at least FreeBSD and Linux (GLIBC):
328  // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsll.c
329  // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
330  switch (T.getOS()) {
331  case Triple::FreeBSD:
332  case Triple::Linux:
333  break;
334  default:
335  TLI.setUnavailable(LibFunc::ffsll);
336  }
337 
338  // The following functions are available on at least Linux:
339  if (!T.isOSLinux()) {
340  TLI.setUnavailable(LibFunc::dunder_strdup);
341  TLI.setUnavailable(LibFunc::dunder_strtok_r);
342  TLI.setUnavailable(LibFunc::dunder_isoc99_scanf);
343  TLI.setUnavailable(LibFunc::dunder_isoc99_sscanf);
344  TLI.setUnavailable(LibFunc::under_IO_getc);
345  TLI.setUnavailable(LibFunc::under_IO_putc);
346  TLI.setUnavailable(LibFunc::memalign);
347  TLI.setUnavailable(LibFunc::fopen64);
348  TLI.setUnavailable(LibFunc::fseeko64);
349  TLI.setUnavailable(LibFunc::fstat64);
350  TLI.setUnavailable(LibFunc::fstatvfs64);
351  TLI.setUnavailable(LibFunc::ftello64);
352  TLI.setUnavailable(LibFunc::lstat64);
353  TLI.setUnavailable(LibFunc::open64);
354  TLI.setUnavailable(LibFunc::stat64);
355  TLI.setUnavailable(LibFunc::statvfs64);
356  TLI.setUnavailable(LibFunc::tmpfile64);
357  }
358 
360 }
361 
363  // Default to everything being available.
364  memset(AvailableArray, -1, sizeof(AvailableArray));
365 
366  initialize(*this, Triple(), StandardNames);
367 }
368 
370  // Default to everything being available.
371  memset(AvailableArray, -1, sizeof(AvailableArray));
372 
373  initialize(*this, T, StandardNames);
374 }
375 
377  : CustomNames(TLI.CustomNames) {
378  memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
379  VectorDescs = TLI.VectorDescs;
380  ScalarDescs = TLI.ScalarDescs;
381 }
382 
384  : CustomNames(std::move(TLI.CustomNames)) {
385  std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
386  AvailableArray);
387  VectorDescs = TLI.VectorDescs;
388  ScalarDescs = TLI.ScalarDescs;
389 }
390 
392  CustomNames = TLI.CustomNames;
393  memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
394  return *this;
395 }
396 
398  CustomNames = std::move(TLI.CustomNames);
399  std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
400  AvailableArray);
401  return *this;
402 }
403 
405  // Filter out empty names and names containing null bytes, those can't be in
406  // our table.
407  if (funcName.empty() || funcName.find('\0') != StringRef::npos)
408  return StringRef();
409 
410  // Check for \01 prefix that is used to mangle __asm declarations and
411  // strip it if present.
412  return GlobalValue::getRealLinkageName(funcName);
413 }
414 
416  LibFunc::Func &F) const {
417  const char *const *Start = &StandardNames[0];
418  const char *const *End = &StandardNames[LibFunc::NumLibFuncs];
419 
420  funcName = sanitizeFunctionName(funcName);
421  if (funcName.empty())
422  return false;
423 
424  const char *const *I = std::lower_bound(
425  Start, End, funcName, [](const char *LHS, StringRef RHS) {
426  return std::strncmp(LHS, RHS.data(), RHS.size()) < 0;
427  });
428  if (I != End && *I == funcName) {
429  F = (LibFunc::Func)(I - Start);
430  return true;
431  }
432  return false;
433 }
434 
436  memset(AvailableArray, 0, sizeof(AvailableArray));
437 }
438 
439 static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) {
440  return std::strncmp(LHS.ScalarFnName, RHS.ScalarFnName,
441  std::strlen(RHS.ScalarFnName)) < 0;
442 }
443 
444 static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) {
445  return std::strncmp(LHS.VectorFnName, RHS.VectorFnName,
446  std::strlen(RHS.VectorFnName)) < 0;
447 }
448 
449 static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) {
450  return std::strncmp(LHS.ScalarFnName, S.data(), S.size()) < 0;
451 }
452 
453 static bool compareWithVectorFnName(const VecDesc &LHS, StringRef S) {
454  return std::strncmp(LHS.VectorFnName, S.data(), S.size()) < 0;
455 }
456 
458  VectorDescs.insert(VectorDescs.end(), Fns.begin(), Fns.end());
459  std::sort(VectorDescs.begin(), VectorDescs.end(), compareByScalarFnName);
460 
461  ScalarDescs.insert(ScalarDescs.end(), Fns.begin(), Fns.end());
462  std::sort(ScalarDescs.begin(), ScalarDescs.end(), compareByVectorFnName);
463 }
464 
466  enum VectorLibrary VecLib) {
467  switch (VecLib) {
468  case Accelerate: {
469  const VecDesc VecFuncs[] = {
470  // Floating-Point Arithmetic and Auxiliary Functions
471  {"ceilf", "vceilf", 4},
472  {"fabsf", "vfabsf", 4},
473  {"llvm.fabs.f32", "vfabsf", 4},
474  {"floorf", "vfloorf", 4},
475  {"sqrtf", "vsqrtf", 4},
476  {"llvm.sqrt.f32", "vsqrtf", 4},
477 
478  // Exponential and Logarithmic Functions
479  {"expf", "vexpf", 4},
480  {"llvm.exp.f32", "vexpf", 4},
481  {"expm1f", "vexpm1f", 4},
482  {"logf", "vlogf", 4},
483  {"llvm.log.f32", "vlogf", 4},
484  {"log1pf", "vlog1pf", 4},
485  {"log10f", "vlog10f", 4},
486  {"llvm.log10.f32", "vlog10f", 4},
487  {"logbf", "vlogbf", 4},
488 
489  // Trigonometric Functions
490  {"sinf", "vsinf", 4},
491  {"llvm.sin.f32", "vsinf", 4},
492  {"cosf", "vcosf", 4},
493  {"llvm.cos.f32", "vcosf", 4},
494  {"tanf", "vtanf", 4},
495  {"asinf", "vasinf", 4},
496  {"acosf", "vacosf", 4},
497  {"atanf", "vatanf", 4},
498 
499  // Hyperbolic Functions
500  {"sinhf", "vsinhf", 4},
501  {"coshf", "vcoshf", 4},
502  {"tanhf", "vtanhf", 4},
503  {"asinhf", "vasinhf", 4},
504  {"acoshf", "vacoshf", 4},
505  {"atanhf", "vatanhf", 4},
506  };
507  addVectorizableFunctions(VecFuncs);
508  break;
509  }
510  case NoLibrary:
511  break;
512  }
513 }
514 
516  funcName = sanitizeFunctionName(funcName);
517  if (funcName.empty())
518  return false;
519 
520  std::vector<VecDesc>::const_iterator I = std::lower_bound(
521  VectorDescs.begin(), VectorDescs.end(), funcName,
523  return I != VectorDescs.end() && StringRef(I->ScalarFnName) == funcName;
524 }
525 
527  unsigned VF) const {
528  F = sanitizeFunctionName(F);
529  if (F.empty())
530  return F;
531  std::vector<VecDesc>::const_iterator I = std::lower_bound(
532  VectorDescs.begin(), VectorDescs.end(), F, compareWithScalarFnName);
533  while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == F) {
534  if (I->VectorizationFactor == VF)
535  return I->VectorFnName;
536  ++I;
537  }
538  return StringRef();
539 }
540 
542  unsigned &VF) const {
543  F = sanitizeFunctionName(F);
544  if (F.empty())
545  return F;
546 
547  std::vector<VecDesc>::const_iterator I = std::lower_bound(
548  ScalarDescs.begin(), ScalarDescs.end(), F, compareWithVectorFnName);
549  if (I == VectorDescs.end() || StringRef(I->VectorFnName) != F)
550  return StringRef();
551  VF = I->VectorizationFactor;
552  return I->ScalarFnName;
553 }
554 
556  if (PresetInfoImpl)
557  return TargetLibraryInfo(*PresetInfoImpl);
558 
559  return TargetLibraryInfo(lookupInfoImpl(Triple(M.getTargetTriple())));
560 }
561 
563  if (PresetInfoImpl)
564  return TargetLibraryInfo(*PresetInfoImpl);
565 
566  return TargetLibraryInfo(
567  lookupInfoImpl(Triple(F.getParent()->getTargetTriple())));
568 }
569 
570 TargetLibraryInfoImpl &TargetLibraryAnalysis::lookupInfoImpl(Triple T) {
571  std::unique_ptr<TargetLibraryInfoImpl> &Impl =
572  Impls[T.normalize()];
573  if (!Impl)
574  Impl.reset(new TargetLibraryInfoImpl(T));
575 
576  return *Impl;
577 }
578 
579 
581  : ImmutablePass(ID), TLIImpl(), TLI(TLIImpl) {
583 }
584 
586  : ImmutablePass(ID), TLIImpl(T), TLI(TLIImpl) {
588 }
589 
591  const TargetLibraryInfoImpl &TLIImpl)
592  : ImmutablePass(ID), TLIImpl(TLIImpl), TLI(this->TLIImpl) {
594 }
595 
596 char TargetLibraryAnalysis::PassID;
597 
598 // Register the basic pass.
600  "Target Library Information", false, true)
602 
603 void TargetLibraryInfoWrapperPass::anchor() {}
OSType getOS() const
getOS - Get the parsed operating system type of this triple.
Definition: Triple.h:251
ValuesClass< DataType > LLVM_END_WITH_NULL values(const char *Arg, DataType Val, const char *Desc,...)
Definition: CommandLine.h:536
const_iterator end(StringRef path)
Get end iterator over path.
Definition: Path.cpp:240
static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS)
static std::string normalize(StringRef Str)
normalize - Turn an arbitrary machine specification into the canonical triple form (or something sens...
Definition: Triple.cpp:598
static PassRegistry * getPassRegistry()
getPassRegistry - Access the global registry object, which is automatically initialized at applicatio...
size_t size() const
size - Get the string size.
Definition: StringRef.h:113
void addVectorizableFunctions(ArrayRef< VecDesc > Fns)
addVectorizableFunctions - Add a set of scalar -> vector mappings, queryable via getVectorizedFunctio...
value_type read(const void *memory)
Read a value of a particular endianness from memory.
Definition: Endian.h:49
A Module instance is used to store all the information related to an LLVM module. ...
Definition: Module.h:114
static StringRef sanitizeFunctionName(StringRef funcName)
#define clEnumValEnd
Definition: CommandLine.h:498
VectorLibrary
List of known vector-functions libraries.
size_t find(char C, size_t From=0) const
Search for the first character C in the string.
Definition: StringRef.h:240
void initializeTargetLibraryInfoWrapperPassPass(PassRegistry &)
iterator end() const
Definition: ArrayRef.h:123
void disableAllFunctions()
Disables all builtins.
Implementation of the target library information.
const_iterator begin(StringRef path)
Get begin iterator over path.
Definition: Path.cpp:232
bool isFunctionVectorizable(StringRef F, unsigned VF) const
isFunctionVectorizable - Return true if the function F has a vector equivalent with vectorization fac...
F(f)
void setAvailableWithName(LibFunc::Func F, StringRef Name)
Forces a function to be marked as available and provide an alternate name that must be used...
const std::string & getTargetTriple() const
Get the target triple which is a string describing the target host.
Definition: Module.h:261
bool isOSWindows() const
Tests whether the OS is Windows.
Definition: Triple.h:464
bool isOSCygMing() const
Tests for either Cygwin or MinGW OS.
Definition: Triple.h:453
StringRef getVectorizedFunction(StringRef F, unsigned VF) const
getVectorizedFunction - Return the name of the equivalent of F, vectorized with factor VF...
bool isMacOSX() const
isMacOSX - Is this a Mac OS X triple.
Definition: Triple.h:394
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:98
TargetLibraryInfo run(Module &M)
unsigned isMacOSXVersionLT(unsigned Major, unsigned Minor=0, unsigned Micro=0) const
isMacOSXVersionLT - Comparison function for checking OS X version compatibility, which handles suppor...
Definition: Triple.h:379
void setUnavailable(LibFunc::Func F)
Forces a function to be marked as unavailable.
bool isOSLinux() const
Tests whether the OS is Linux.
Definition: Triple.h:474
bool getLibFunc(StringRef funcName, LibFunc::Func &F) const
Searches for a particular function name.
const char * data() const
data - Get a pointer to the start of the string (which may not be null terminated).
Definition: StringRef.h:107
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory)...
Definition: ArrayRef.h:31
ArchType getArch() const
getArch - Get the parsed architecture type of this triple.
Definition: Triple.h:242
bool isiOS() const
Is this an iOS triple.
Definition: Triple.h:399
initializer< Ty > init(const Ty &Val)
Definition: CommandLine.h:325
static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS)
const char * VectorFnName
iterator begin() const
Definition: ArrayRef.h:122
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"), clEnumValEnd))
static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T, const char *const *StandardNames)
initialize - Initialize the set of available library functions based on the specified target triple...
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
#define INITIALIZE_PASS(passName, arg, name, cfg, analysis)
Definition: PassSupport.h:56
bool isOSDarwin() const
isOSDarwin - Is this a "Darwin" OS (OS X or iOS).
Definition: Triple.h:404
static bool hasSinCosPiStret(const Triple &T)
ImmutablePass class - This class is used to provide information that does not need to be run...
Definition: Pass.h:262
VecDesc - Describes a possible vectorization of a function.
Provides information about what library functions are available for the current target.
StringRef getScalarizedFunction(StringRef F, unsigned &VF) const
getScalarizedFunction - Return the name of the equivalent of F, scalarized.
TargetLibraryInfoImpl & operator=(const TargetLibraryInfoImpl &TLI)
void addVectorizableFunctionsFromVecLib(enum VectorLibrary VecLib)
Calls addVectorizableFunctions with a known preset of functions for the given vector library...
const char * ScalarFnName
void write(void *memory, value_type value)
Write a value to memory with a particular endianness.
Definition: Endian.h:73
bool isOSVersionLT(unsigned Major, unsigned Minor=0, unsigned Micro=0) const
isOSVersionLT - Helper function for doing comparisons against version numbers included in the target ...
Definition: Triple.h:355
#define clEnumValN(ENUMVAL, FLAGNAME, DESC)
Definition: CommandLine.h:497
static StringRef getRealLinkageName(StringRef Name)
If special LLVM prefix that is used to inform the asm printer to not emit usual symbol prefix before ...
Definition: GlobalValue.h:306
static const size_t npos
Definition: StringRef.h:44
#define I(x, y, z)
Definition: MD5.cpp:54
static bool compareWithVectorFnName(const VecDesc &LHS, StringRef S)
Module * getParent()
Get the module that this global value is contained inside of...
Definition: GlobalValue.h:365
std::error_code access(const Twine &Path, AccessMode Mode)
Can the file be accessed?
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:40
static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S)
bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:110