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 
14 #include "llvm/Analysis/TargetLibraryInfo.h"
15 #include "llvm/ADT/Triple.h"
16 #include "llvm/IR/Constants.h"
17 #include "llvm/Support/CommandLine.h"
18 using namespace llvm;
19 
20 static 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::SVML, "SVML",
28                           "Intel SVML library")));
29 
30 StringRef const TargetLibraryInfoImpl::StandardNames[LibFunc::NumLibFuncs] = {
31 #define TLI_DEFINE_STRING
32 #include "llvm/Analysis/TargetLibraryInfo.def"
33 };
34 
35 static bool hasSinCosPiStret(const Triple &T) {
36   // Only Darwin variants have _stret versions of combined trig functions.
37   if (!T.isOSDarwin())
38     return false;
39 
40   // The ABI is rather complicated on x86, so don't do anything special there.
41   if (T.getArch() == Triple::x86)
42     return false;
43 
44   if (T.isMacOSX() && T.isMacOSXVersionLT(10, 9))
45     return false;
46 
47   if (T.isiOS() && T.isOSVersionLT(7, 0))
48     return false;
49 
50   return true;
51 }
52 
53 /// Initialize the set of available library functions based on the specified
54 /// target triple. This should be carefully written so that a missing target
55 /// triple gets a sane set of defaults.
56 static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
57                        ArrayRef<StringRef> StandardNames) {
58   // Verify that the StandardNames array is in alphabetical order.
59   assert(std::is_sorted(StandardNames.begin(), StandardNames.end(),
60                         [](StringRef LHS, StringRef RHS) {
61                           return LHS < RHS;
62                         }) &&
63          "TargetLibraryInfoImpl function names must be sorted");
64 
65   // Set IO unlocked variants as unavailable
66   // Set them as available per system below
67   TLI.setUnavailable(LibFunc_getchar_unlocked);
68   TLI.setUnavailable(LibFunc_putc_unlocked);
69   TLI.setUnavailable(LibFunc_putchar_unlocked);
70   TLI.setUnavailable(LibFunc_fputc_unlocked);
71   TLI.setUnavailable(LibFunc_fgetc_unlocked);
72   TLI.setUnavailable(LibFunc_fread_unlocked);
73   TLI.setUnavailable(LibFunc_fwrite_unlocked);
74   TLI.setUnavailable(LibFunc_fputs_unlocked);
75   TLI.setUnavailable(LibFunc_fgets_unlocked);
76 
77   bool ShouldExtI32Param = false, ShouldExtI32Return = false,
78        ShouldSignExtI32Param = false;
79   // PowerPC64, Sparc64, SystemZ need signext/zeroext on i32 parameters and
80   // returns corresponding to C-level ints and unsigned ints.
81   if (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le ||
82       T.getArch() == Triple::sparcv9 || T.getArch() == Triple::systemz) {
83     ShouldExtI32Param = true;
84     ShouldExtI32Return = true;
85   }
86   // Mips, on the other hand, needs signext on i32 parameters corresponding
87   // to both signed and unsigned ints.
88   if (T.isMIPS()) {
89     ShouldSignExtI32Param = true;
90   }
91   TLI.setShouldExtI32Param(ShouldExtI32Param);
92   TLI.setShouldExtI32Return(ShouldExtI32Return);
93   TLI.setShouldSignExtI32Param(ShouldSignExtI32Param);
94 
95   if (T.getArch() == Triple::r600 ||
96       T.getArch() == Triple::amdgcn) {
97     TLI.setUnavailable(LibFunc_ldexp);
98     TLI.setUnavailable(LibFunc_ldexpf);
99     TLI.setUnavailable(LibFunc_ldexpl);
100     TLI.setUnavailable(LibFunc_exp10);
101     TLI.setUnavailable(LibFunc_exp10f);
102     TLI.setUnavailable(LibFunc_exp10l);
103     TLI.setUnavailable(LibFunc_log10);
104     TLI.setUnavailable(LibFunc_log10f);
105     TLI.setUnavailable(LibFunc_log10l);
106   }
107 
108   // There are no library implementations of mempcy and memset for AMD gpus and
109   // these can be difficult to lower in the backend.
110   if (T.getArch() == Triple::r600 ||
111       T.getArch() == Triple::amdgcn) {
112     TLI.setUnavailable(LibFunc_memcpy);
113     TLI.setUnavailable(LibFunc_memset);
114     TLI.setUnavailable(LibFunc_memset_pattern16);
115     return;
116   }
117 
118   // memset_pattern16 is only available on iOS 3.0 and Mac OS X 10.5 and later.
119   // All versions of watchOS support it.
120   if (T.isMacOSX()) {
121     // available IO unlocked variants on Mac OS X
122     TLI.setAvailable(LibFunc_getc_unlocked);
123     TLI.setAvailable(LibFunc_getchar_unlocked);
124     TLI.setAvailable(LibFunc_putc_unlocked);
125     TLI.setAvailable(LibFunc_putchar_unlocked);
126 
127     if (T.isMacOSXVersionLT(10, 5))
128       TLI.setUnavailable(LibFunc_memset_pattern16);
129   } else if (T.isiOS()) {
130     if (T.isOSVersionLT(3, 0))
131       TLI.setUnavailable(LibFunc_memset_pattern16);
132   } else if (!T.isWatchOS()) {
133     TLI.setUnavailable(LibFunc_memset_pattern16);
134   }
135 
136   if (!hasSinCosPiStret(T)) {
137     TLI.setUnavailable(LibFunc_sinpi);
138     TLI.setUnavailable(LibFunc_sinpif);
139     TLI.setUnavailable(LibFunc_cospi);
140     TLI.setUnavailable(LibFunc_cospif);
141     TLI.setUnavailable(LibFunc_sincospi_stret);
142     TLI.setUnavailable(LibFunc_sincospif_stret);
143   }
144 
145   if (T.isMacOSX() && T.getArch() == Triple::x86 &&
146       !T.isMacOSXVersionLT(10, 7)) {
147     // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
148     // we don't care about) have two versions; on recent OSX, the one we want
149     // has a $UNIX2003 suffix. The two implementations are identical except
150     // for the return value in some edge cases.  However, we don't want to
151     // generate code that depends on the old symbols.
152     TLI.setAvailableWithName(LibFunc_fwrite, "fwrite$UNIX2003");
153     TLI.setAvailableWithName(LibFunc_fputs, "fputs$UNIX2003");
154   }
155 
156   // iprintf and friends are only available on XCore and TCE.
157   if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
158     TLI.setUnavailable(LibFunc_iprintf);
159     TLI.setUnavailable(LibFunc_siprintf);
160     TLI.setUnavailable(LibFunc_fiprintf);
161   }
162 
163   if (T.isOSWindows() && !T.isOSCygMing()) {
164     // XXX: The earliest documentation available at the moment is for VS2015/VC19:
165     // https://docs.microsoft.com/en-us/cpp/c-runtime-library/floating-point-support?view=vs-2015
166     // XXX: In order to use an MSVCRT older than VC19,
167     // the specific library version must be explicit in the target triple,
168     // e.g., x86_64-pc-windows-msvc18.
169     bool hasPartialC99 = true;
170     if (T.isKnownWindowsMSVCEnvironment()) {
171       unsigned Major, Minor, Micro;
172       T.getEnvironmentVersion(Major, Minor, Micro);
173       hasPartialC99 = (Major == 0 || Major >= 19);
174     }
175 
176     // Latest targets support C89 math functions, in part.
177     bool isARM = (T.getArch() == Triple::aarch64 ||
178                   T.getArch() == Triple::arm);
179     bool hasPartialFloat = (isARM ||
180                             T.getArch() == Triple::x86_64);
181 
182     // Win32 does not support float C89 math functions, in general.
183     if (!hasPartialFloat) {
184       TLI.setUnavailable(LibFunc_acosf);
185       TLI.setUnavailable(LibFunc_asinf);
186       TLI.setUnavailable(LibFunc_atan2f);
187       TLI.setUnavailable(LibFunc_atanf);
188       TLI.setUnavailable(LibFunc_ceilf);
189       TLI.setUnavailable(LibFunc_cosf);
190       TLI.setUnavailable(LibFunc_coshf);
191       TLI.setUnavailable(LibFunc_expf);
192       TLI.setUnavailable(LibFunc_floorf);
193       TLI.setUnavailable(LibFunc_fmodf);
194       TLI.setUnavailable(LibFunc_log10f);
195       TLI.setUnavailable(LibFunc_logf);
196       TLI.setUnavailable(LibFunc_modff);
197       TLI.setUnavailable(LibFunc_powf);
198       TLI.setUnavailable(LibFunc_sinf);
199       TLI.setUnavailable(LibFunc_sinhf);
200       TLI.setUnavailable(LibFunc_sqrtf);
201       TLI.setUnavailable(LibFunc_tanf);
202       TLI.setUnavailable(LibFunc_tanhf);
203     }
204     if (!isARM)
205       TLI.setUnavailable(LibFunc_fabsf);
206     TLI.setUnavailable(LibFunc_frexpf);
207     TLI.setUnavailable(LibFunc_ldexpf);
208 
209     // Win32 does not support long double C89 math functions.
210     TLI.setUnavailable(LibFunc_acosl);
211     TLI.setUnavailable(LibFunc_asinl);
212     TLI.setUnavailable(LibFunc_atan2l);
213     TLI.setUnavailable(LibFunc_atanl);
214     TLI.setUnavailable(LibFunc_ceill);
215     TLI.setUnavailable(LibFunc_cosl);
216     TLI.setUnavailable(LibFunc_coshl);
217     TLI.setUnavailable(LibFunc_expl);
218     TLI.setUnavailable(LibFunc_fabsl);
219     TLI.setUnavailable(LibFunc_floorl);
220     TLI.setUnavailable(LibFunc_fmodl);
221     TLI.setUnavailable(LibFunc_frexpl);
222     TLI.setUnavailable(LibFunc_ldexpl);
223     TLI.setUnavailable(LibFunc_log10l);
224     TLI.setUnavailable(LibFunc_logl);
225     TLI.setUnavailable(LibFunc_modfl);
226     TLI.setUnavailable(LibFunc_powl);
227     TLI.setUnavailable(LibFunc_sinl);
228     TLI.setUnavailable(LibFunc_sinhl);
229     TLI.setUnavailable(LibFunc_sqrtl);
230     TLI.setUnavailable(LibFunc_tanl);
231     TLI.setUnavailable(LibFunc_tanhl);
232 
233     // Win32 does not fully support C99 math functions.
234     if (!hasPartialC99) {
235       TLI.setUnavailable(LibFunc_acosh);
236       TLI.setUnavailable(LibFunc_acoshf);
237       TLI.setUnavailable(LibFunc_asinh);
238       TLI.setUnavailable(LibFunc_asinhf);
239       TLI.setUnavailable(LibFunc_atanh);
240       TLI.setUnavailable(LibFunc_atanhf);
241       TLI.setAvailableWithName(LibFunc_cabs, "_cabs");
242       TLI.setUnavailable(LibFunc_cabsf);
243       TLI.setUnavailable(LibFunc_cbrt);
244       TLI.setUnavailable(LibFunc_cbrtf);
245       TLI.setAvailableWithName(LibFunc_copysign, "_copysign");
246       TLI.setAvailableWithName(LibFunc_copysignf, "_copysignf");
247       TLI.setUnavailable(LibFunc_exp2);
248       TLI.setUnavailable(LibFunc_exp2f);
249       TLI.setUnavailable(LibFunc_expm1);
250       TLI.setUnavailable(LibFunc_expm1f);
251       TLI.setUnavailable(LibFunc_fmax);
252       TLI.setUnavailable(LibFunc_fmaxf);
253       TLI.setUnavailable(LibFunc_fmin);
254       TLI.setUnavailable(LibFunc_fminf);
255       TLI.setUnavailable(LibFunc_log1p);
256       TLI.setUnavailable(LibFunc_log1pf);
257       TLI.setUnavailable(LibFunc_log2);
258       TLI.setUnavailable(LibFunc_log2f);
259       TLI.setAvailableWithName(LibFunc_logb, "_logb");
260       if (hasPartialFloat)
261         TLI.setAvailableWithName(LibFunc_logbf, "_logbf");
262       else
263         TLI.setUnavailable(LibFunc_logbf);
264       TLI.setUnavailable(LibFunc_rint);
265       TLI.setUnavailable(LibFunc_rintf);
266       TLI.setUnavailable(LibFunc_round);
267       TLI.setUnavailable(LibFunc_roundf);
268       TLI.setUnavailable(LibFunc_trunc);
269       TLI.setUnavailable(LibFunc_truncf);
270     }
271 
272     // Win32 does not support long double C99 math functions.
273     TLI.setUnavailable(LibFunc_acoshl);
274     TLI.setUnavailable(LibFunc_asinhl);
275     TLI.setUnavailable(LibFunc_atanhl);
276     TLI.setUnavailable(LibFunc_cabsl);
277     TLI.setUnavailable(LibFunc_cbrtl);
278     TLI.setUnavailable(LibFunc_copysignl);
279     TLI.setUnavailable(LibFunc_exp2l);
280     TLI.setUnavailable(LibFunc_expm1l);
281     TLI.setUnavailable(LibFunc_fmaxl);
282     TLI.setUnavailable(LibFunc_fminl);
283     TLI.setUnavailable(LibFunc_log1pl);
284     TLI.setUnavailable(LibFunc_log2l);
285     TLI.setUnavailable(LibFunc_logbl);
286     TLI.setUnavailable(LibFunc_nearbyintl);
287     TLI.setUnavailable(LibFunc_rintl);
288     TLI.setUnavailable(LibFunc_roundl);
289     TLI.setUnavailable(LibFunc_truncl);
290 
291     // Win32 does not support these functions, but
292     // they are generally available on POSIX-compliant systems.
293     TLI.setUnavailable(LibFunc_access);
294     TLI.setUnavailable(LibFunc_bcmp);
295     TLI.setUnavailable(LibFunc_bcopy);
296     TLI.setUnavailable(LibFunc_bzero);
297     TLI.setUnavailable(LibFunc_chmod);
298     TLI.setUnavailable(LibFunc_chown);
299     TLI.setUnavailable(LibFunc_closedir);
300     TLI.setUnavailable(LibFunc_ctermid);
301     TLI.setUnavailable(LibFunc_fdopen);
302     TLI.setUnavailable(LibFunc_ffs);
303     TLI.setUnavailable(LibFunc_fileno);
304     TLI.setUnavailable(LibFunc_flockfile);
305     TLI.setUnavailable(LibFunc_fseeko);
306     TLI.setUnavailable(LibFunc_fstat);
307     TLI.setUnavailable(LibFunc_fstatvfs);
308     TLI.setUnavailable(LibFunc_ftello);
309     TLI.setUnavailable(LibFunc_ftrylockfile);
310     TLI.setUnavailable(LibFunc_funlockfile);
311     TLI.setUnavailable(LibFunc_getitimer);
312     TLI.setUnavailable(LibFunc_getlogin_r);
313     TLI.setUnavailable(LibFunc_getpwnam);
314     TLI.setUnavailable(LibFunc_gettimeofday);
315     TLI.setUnavailable(LibFunc_htonl);
316     TLI.setUnavailable(LibFunc_htons);
317     TLI.setUnavailable(LibFunc_lchown);
318     TLI.setUnavailable(LibFunc_lstat);
319     TLI.setUnavailable(LibFunc_memccpy);
320     TLI.setUnavailable(LibFunc_mkdir);
321     TLI.setUnavailable(LibFunc_ntohl);
322     TLI.setUnavailable(LibFunc_ntohs);
323     TLI.setUnavailable(LibFunc_open);
324     TLI.setUnavailable(LibFunc_opendir);
325     TLI.setUnavailable(LibFunc_pclose);
326     TLI.setUnavailable(LibFunc_popen);
327     TLI.setUnavailable(LibFunc_pread);
328     TLI.setUnavailable(LibFunc_pwrite);
329     TLI.setUnavailable(LibFunc_read);
330     TLI.setUnavailable(LibFunc_readlink);
331     TLI.setUnavailable(LibFunc_realpath);
332     TLI.setUnavailable(LibFunc_rmdir);
333     TLI.setUnavailable(LibFunc_setitimer);
334     TLI.setUnavailable(LibFunc_stat);
335     TLI.setUnavailable(LibFunc_statvfs);
336     TLI.setUnavailable(LibFunc_stpcpy);
337     TLI.setUnavailable(LibFunc_stpncpy);
338     TLI.setUnavailable(LibFunc_strcasecmp);
339     TLI.setUnavailable(LibFunc_strncasecmp);
340     TLI.setUnavailable(LibFunc_times);
341     TLI.setUnavailable(LibFunc_uname);
342     TLI.setUnavailable(LibFunc_unlink);
343     TLI.setUnavailable(LibFunc_unsetenv);
344     TLI.setUnavailable(LibFunc_utime);
345     TLI.setUnavailable(LibFunc_utimes);
346     TLI.setUnavailable(LibFunc_write);
347   }
348 
349   switch (T.getOS()) {
350   case Triple::MacOSX:
351     // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
352     // and their names are __exp10 and __exp10f. exp10l is not available on
353     // OS X or iOS.
354     TLI.setUnavailable(LibFunc_exp10l);
355     if (T.isMacOSXVersionLT(10, 9)) {
356       TLI.setUnavailable(LibFunc_exp10);
357       TLI.setUnavailable(LibFunc_exp10f);
358     } else {
359       TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
360       TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
361     }
362     break;
363   case Triple::IOS:
364   case Triple::TvOS:
365   case Triple::WatchOS:
366     TLI.setUnavailable(LibFunc_exp10l);
367     if (!T.isWatchOS() && (T.isOSVersionLT(7, 0) ||
368                            (T.isOSVersionLT(9, 0) &&
369                             (T.getArch() == Triple::x86 ||
370                              T.getArch() == Triple::x86_64)))) {
371       TLI.setUnavailable(LibFunc_exp10);
372       TLI.setUnavailable(LibFunc_exp10f);
373     } else {
374       TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
375       TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
376     }
377     break;
378   case Triple::Linux:
379     // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
380     // buggy prior to glibc version 2.18. Until this version is widely deployed
381     // or we have a reasonable detection strategy, we cannot use exp10 reliably
382     // on Linux.
383     //
384     // Fall through to disable all of them.
385     LLVM_FALLTHROUGH;
386   default:
387     TLI.setUnavailable(LibFunc_exp10);
388     TLI.setUnavailable(LibFunc_exp10f);
389     TLI.setUnavailable(LibFunc_exp10l);
390   }
391 
392   // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
393   // Linux (GLIBC):
394   // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
395   // http://svn.freebsd.org/base/head/lib/libc/string/ffsl.c
396   // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
397   switch (T.getOS()) {
398   case Triple::Darwin:
399   case Triple::MacOSX:
400   case Triple::IOS:
401   case Triple::TvOS:
402   case Triple::WatchOS:
403   case Triple::FreeBSD:
404   case Triple::Linux:
405     break;
406   default:
407     TLI.setUnavailable(LibFunc_ffsl);
408   }
409 
410   // ffsll is available on at least FreeBSD and Linux (GLIBC):
411   // http://svn.freebsd.org/base/head/lib/libc/string/ffsll.c
412   // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
413   switch (T.getOS()) {
414   case Triple::Darwin:
415   case Triple::MacOSX:
416   case Triple::IOS:
417   case Triple::TvOS:
418   case Triple::WatchOS:
419   case Triple::FreeBSD:
420   case Triple::Linux:
421     break;
422   default:
423     TLI.setUnavailable(LibFunc_ffsll);
424   }
425 
426   // The following functions are available on at least FreeBSD:
427   // http://svn.freebsd.org/base/head/lib/libc/string/fls.c
428   // http://svn.freebsd.org/base/head/lib/libc/string/flsl.c
429   // http://svn.freebsd.org/base/head/lib/libc/string/flsll.c
430   if (!T.isOSFreeBSD()) {
431     TLI.setUnavailable(LibFunc_fls);
432     TLI.setUnavailable(LibFunc_flsl);
433     TLI.setUnavailable(LibFunc_flsll);
434   }
435 
436   // The following functions are only available on GNU/Linux (using glibc).
437   // Linux variants without glibc (eg: bionic, musl) may have some subset.
438   if (!T.isOSLinux() || !T.isGNUEnvironment()) {
439     TLI.setUnavailable(LibFunc_dunder_strdup);
440     TLI.setUnavailable(LibFunc_dunder_strtok_r);
441     TLI.setUnavailable(LibFunc_dunder_isoc99_scanf);
442     TLI.setUnavailable(LibFunc_dunder_isoc99_sscanf);
443     TLI.setUnavailable(LibFunc_under_IO_getc);
444     TLI.setUnavailable(LibFunc_under_IO_putc);
445     // But, Android and musl have memalign.
446     if (!T.isAndroid() && !T.isMusl())
447       TLI.setUnavailable(LibFunc_memalign);
448     TLI.setUnavailable(LibFunc_fopen64);
449     TLI.setUnavailable(LibFunc_fseeko64);
450     TLI.setUnavailable(LibFunc_fstat64);
451     TLI.setUnavailable(LibFunc_fstatvfs64);
452     TLI.setUnavailable(LibFunc_ftello64);
453     TLI.setUnavailable(LibFunc_lstat64);
454     TLI.setUnavailable(LibFunc_open64);
455     TLI.setUnavailable(LibFunc_stat64);
456     TLI.setUnavailable(LibFunc_statvfs64);
457     TLI.setUnavailable(LibFunc_tmpfile64);
458 
459     // Relaxed math functions are included in math-finite.h on Linux (GLIBC).
460     TLI.setUnavailable(LibFunc_acos_finite);
461     TLI.setUnavailable(LibFunc_acosf_finite);
462     TLI.setUnavailable(LibFunc_acosl_finite);
463     TLI.setUnavailable(LibFunc_acosh_finite);
464     TLI.setUnavailable(LibFunc_acoshf_finite);
465     TLI.setUnavailable(LibFunc_acoshl_finite);
466     TLI.setUnavailable(LibFunc_asin_finite);
467     TLI.setUnavailable(LibFunc_asinf_finite);
468     TLI.setUnavailable(LibFunc_asinl_finite);
469     TLI.setUnavailable(LibFunc_atan2_finite);
470     TLI.setUnavailable(LibFunc_atan2f_finite);
471     TLI.setUnavailable(LibFunc_atan2l_finite);
472     TLI.setUnavailable(LibFunc_atanh_finite);
473     TLI.setUnavailable(LibFunc_atanhf_finite);
474     TLI.setUnavailable(LibFunc_atanhl_finite);
475     TLI.setUnavailable(LibFunc_cosh_finite);
476     TLI.setUnavailable(LibFunc_coshf_finite);
477     TLI.setUnavailable(LibFunc_coshl_finite);
478     TLI.setUnavailable(LibFunc_exp10_finite);
479     TLI.setUnavailable(LibFunc_exp10f_finite);
480     TLI.setUnavailable(LibFunc_exp10l_finite);
481     TLI.setUnavailable(LibFunc_exp2_finite);
482     TLI.setUnavailable(LibFunc_exp2f_finite);
483     TLI.setUnavailable(LibFunc_exp2l_finite);
484     TLI.setUnavailable(LibFunc_exp_finite);
485     TLI.setUnavailable(LibFunc_expf_finite);
486     TLI.setUnavailable(LibFunc_expl_finite);
487     TLI.setUnavailable(LibFunc_log10_finite);
488     TLI.setUnavailable(LibFunc_log10f_finite);
489     TLI.setUnavailable(LibFunc_log10l_finite);
490     TLI.setUnavailable(LibFunc_log2_finite);
491     TLI.setUnavailable(LibFunc_log2f_finite);
492     TLI.setUnavailable(LibFunc_log2l_finite);
493     TLI.setUnavailable(LibFunc_log_finite);
494     TLI.setUnavailable(LibFunc_logf_finite);
495     TLI.setUnavailable(LibFunc_logl_finite);
496     TLI.setUnavailable(LibFunc_pow_finite);
497     TLI.setUnavailable(LibFunc_powf_finite);
498     TLI.setUnavailable(LibFunc_powl_finite);
499     TLI.setUnavailable(LibFunc_sinh_finite);
500     TLI.setUnavailable(LibFunc_sinhf_finite);
501     TLI.setUnavailable(LibFunc_sinhl_finite);
502   }
503 
504   if ((T.isOSLinux() && T.isGNUEnvironment()) ||
505       (T.isAndroid() && !T.isAndroidVersionLT(28))) {
506     // available IO unlocked variants on GNU/Linux and Android P or later
507     TLI.setAvailable(LibFunc_getc_unlocked);
508     TLI.setAvailable(LibFunc_getchar_unlocked);
509     TLI.setAvailable(LibFunc_putc_unlocked);
510     TLI.setAvailable(LibFunc_putchar_unlocked);
511     TLI.setAvailable(LibFunc_fputc_unlocked);
512     TLI.setAvailable(LibFunc_fgetc_unlocked);
513     TLI.setAvailable(LibFunc_fread_unlocked);
514     TLI.setAvailable(LibFunc_fwrite_unlocked);
515     TLI.setAvailable(LibFunc_fputs_unlocked);
516     TLI.setAvailable(LibFunc_fgets_unlocked);
517   }
518 
519   // As currently implemented in clang, NVPTX code has no standard library to
520   // speak of.  Headers provide a standard-ish library implementation, but many
521   // of the signatures are wrong -- for example, many libm functions are not
522   // extern "C".
523   //
524   // libdevice, an IR library provided by nvidia, is linked in by the front-end,
525   // but only used functions are provided to llvm.  Moreover, most of the
526   // functions in libdevice don't map precisely to standard library functions.
527   //
528   // FIXME: Having no standard library prevents e.g. many fastmath
529   // optimizations, so this situation should be fixed.
530   if (T.isNVPTX()) {
531     TLI.disableAllFunctions();
532     TLI.setAvailable(LibFunc_nvvm_reflect);
533   } else {
534     TLI.setUnavailable(LibFunc_nvvm_reflect);
535   }
536 
537   TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary);
538 }
539 
540 TargetLibraryInfoImpl::TargetLibraryInfoImpl() {
541   // Default to everything being available.
542   memset(AvailableArray, -1, sizeof(AvailableArray));
543 
544   initialize(*this, Triple(), StandardNames);
545 }
546 
547 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const Triple &T) {
548   // Default to everything being available.
549   memset(AvailableArray, -1, sizeof(AvailableArray));
550 
551   initialize(*this, T, StandardNames);
552 }
553 
554 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const TargetLibraryInfoImpl &TLI)
555     : CustomNames(TLI.CustomNames), ShouldExtI32Param(TLI.ShouldExtI32Param),
556       ShouldExtI32Return(TLI.ShouldExtI32Return),
557       ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) {
558   memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
559   VectorDescs = TLI.VectorDescs;
560   ScalarDescs = TLI.ScalarDescs;
561 }
562 
563 TargetLibraryInfoImpl::TargetLibraryInfoImpl(TargetLibraryInfoImpl &&TLI)
564     : CustomNames(std::move(TLI.CustomNames)),
565       ShouldExtI32Param(TLI.ShouldExtI32Param),
566       ShouldExtI32Return(TLI.ShouldExtI32Return),
567       ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) {
568   std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
569             AvailableArray);
570   VectorDescs = TLI.VectorDescs;
571   ScalarDescs = TLI.ScalarDescs;
572 }
573 
574 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(const TargetLibraryInfoImpl &TLI) {
575   CustomNames = TLI.CustomNames;
576   ShouldExtI32Param = TLI.ShouldExtI32Param;
577   ShouldExtI32Return = TLI.ShouldExtI32Return;
578   ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
579   memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
580   return *this;
581 }
582 
583 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(TargetLibraryInfoImpl &&TLI) {
584   CustomNames = std::move(TLI.CustomNames);
585   ShouldExtI32Param = TLI.ShouldExtI32Param;
586   ShouldExtI32Return = TLI.ShouldExtI32Return;
587   ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
588   std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
589             AvailableArray);
590   return *this;
591 }
592 
593 static StringRef sanitizeFunctionName(StringRef funcName) {
594   // Filter out empty names and names containing null bytes, those can't be in
595   // our table.
596   if (funcName.empty() || funcName.find('\0') != StringRef::npos)
597     return StringRef();
598 
599   // Check for \01 prefix that is used to mangle __asm declarations and
600   // strip it if present.
601   return GlobalValue::dropLLVMManglingEscape(funcName);
602 }
603 
604 bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName,
605                                        LibFunc &F) const {
606   StringRef const *Start = &StandardNames[0];
607   StringRef const *End = &StandardNames[NumLibFuncs];
608 
609   funcName = sanitizeFunctionName(funcName);
610   if (funcName.empty())
611     return false;
612 
613   StringRef const *I = std::lower_bound(
614       Start, End, funcName, [](StringRef LHS, StringRef RHS) {
615         return LHS < RHS;
616       });
617   if (I != End && *I == funcName) {
618     F = (LibFunc)(I - Start);
619     return true;
620   }
621   return false;
622 }
623 
624 bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy,
625                                                    LibFunc F,
626                                                    const DataLayout *DL) const {
627   LLVMContext &Ctx = FTy.getContext();
628   Type *PCharTy = Type::getInt8PtrTy(Ctx);
629   Type *SizeTTy = DL ? DL->getIntPtrType(Ctx, /*AS=*/0) : nullptr;
630   auto IsSizeTTy = [SizeTTy](Type *Ty) {
631     return SizeTTy ? Ty == SizeTTy : Ty->isIntegerTy();
632   };
633   unsigned NumParams = FTy.getNumParams();
634 
635   switch (F) {
636   case LibFunc_execl:
637   case LibFunc_execlp:
638   case LibFunc_execle:
639     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
640             FTy.getParamType(1)->isPointerTy() &&
641             FTy.getReturnType()->isIntegerTy(32));
642   case LibFunc_execv:
643   case LibFunc_execvp:
644     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
645             FTy.getParamType(1)->isPointerTy() &&
646             FTy.getReturnType()->isIntegerTy(32));
647   case LibFunc_execvP:
648   case LibFunc_execvpe:
649   case LibFunc_execve:
650     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
651             FTy.getParamType(1)->isPointerTy() &&
652             FTy.getParamType(2)->isPointerTy() &&
653             FTy.getReturnType()->isIntegerTy(32));
654   case LibFunc_strlen:
655     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() &&
656             FTy.getReturnType()->isIntegerTy());
657 
658   case LibFunc_strchr:
659   case LibFunc_strrchr:
660     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
661             FTy.getParamType(0) == FTy.getReturnType() &&
662             FTy.getParamType(1)->isIntegerTy());
663 
664   case LibFunc_strtol:
665   case LibFunc_strtod:
666   case LibFunc_strtof:
667   case LibFunc_strtoul:
668   case LibFunc_strtoll:
669   case LibFunc_strtold:
670   case LibFunc_strtoull:
671     return ((NumParams == 2 || NumParams == 3) &&
672             FTy.getParamType(0)->isPointerTy() &&
673             FTy.getParamType(1)->isPointerTy());
674   case LibFunc_strcat:
675     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
676             FTy.getParamType(0) == FTy.getReturnType() &&
677             FTy.getParamType(1) == FTy.getReturnType());
678 
679   case LibFunc_strncat:
680     return (NumParams == 3 && FTy.getReturnType()->isPointerTy() &&
681             FTy.getParamType(0) == FTy.getReturnType() &&
682             FTy.getParamType(1) == FTy.getReturnType() &&
683             IsSizeTTy(FTy.getParamType(2)));
684 
685   case LibFunc_strcpy_chk:
686   case LibFunc_stpcpy_chk:
687     --NumParams;
688     if (!IsSizeTTy(FTy.getParamType(NumParams)))
689       return false;
690     LLVM_FALLTHROUGH;
691   case LibFunc_strcpy:
692   case LibFunc_stpcpy:
693     return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(0) &&
694             FTy.getParamType(0) == FTy.getParamType(1) &&
695             FTy.getParamType(0) == PCharTy);
696 
697   case LibFunc_strncpy_chk:
698   case LibFunc_stpncpy_chk:
699     --NumParams;
700     if (!IsSizeTTy(FTy.getParamType(NumParams)))
701       return false;
702     LLVM_FALLTHROUGH;
703   case LibFunc_strncpy:
704   case LibFunc_stpncpy:
705     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
706             FTy.getParamType(0) == FTy.getParamType(1) &&
707             FTy.getParamType(0) == PCharTy &&
708             IsSizeTTy(FTy.getParamType(2)));
709 
710   case LibFunc_strxfrm:
711     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
712             FTy.getParamType(1)->isPointerTy());
713 
714   case LibFunc_strcmp:
715     return (NumParams == 2 && FTy.getReturnType()->isIntegerTy(32) &&
716             FTy.getParamType(0)->isPointerTy() &&
717             FTy.getParamType(0) == FTy.getParamType(1));
718 
719   case LibFunc_strncmp:
720     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
721             FTy.getParamType(0)->isPointerTy() &&
722             FTy.getParamType(0) == FTy.getParamType(1) &&
723             IsSizeTTy(FTy.getParamType(2)));
724 
725   case LibFunc_strspn:
726   case LibFunc_strcspn:
727     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
728             FTy.getParamType(0) == FTy.getParamType(1) &&
729             FTy.getReturnType()->isIntegerTy());
730 
731   case LibFunc_strcoll:
732   case LibFunc_strcasecmp:
733   case LibFunc_strncasecmp:
734     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
735             FTy.getParamType(1)->isPointerTy());
736 
737   case LibFunc_strstr:
738     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
739             FTy.getParamType(0)->isPointerTy() &&
740             FTy.getParamType(1)->isPointerTy());
741 
742   case LibFunc_strpbrk:
743     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
744             FTy.getReturnType() == FTy.getParamType(0) &&
745             FTy.getParamType(0) == FTy.getParamType(1));
746 
747   case LibFunc_strtok:
748   case LibFunc_strtok_r:
749     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
750   case LibFunc_scanf:
751   case LibFunc_setbuf:
752   case LibFunc_setvbuf:
753     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
754   case LibFunc_strdup:
755   case LibFunc_strndup:
756     return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() &&
757             FTy.getParamType(0)->isPointerTy());
758   case LibFunc_sscanf:
759   case LibFunc_stat:
760   case LibFunc_statvfs:
761   case LibFunc_siprintf:
762   case LibFunc_sprintf:
763     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
764             FTy.getParamType(1)->isPointerTy() &&
765             FTy.getReturnType()->isIntegerTy(32));
766   case LibFunc_snprintf:
767     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
768             FTy.getParamType(2)->isPointerTy() &&
769             FTy.getReturnType()->isIntegerTy(32));
770   case LibFunc_setitimer:
771     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
772             FTy.getParamType(2)->isPointerTy());
773   case LibFunc_system:
774     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
775   case LibFunc_malloc:
776     return (NumParams == 1 && FTy.getReturnType()->isPointerTy());
777   case LibFunc_memcmp:
778     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
779             FTy.getParamType(0)->isPointerTy() &&
780             FTy.getParamType(1)->isPointerTy());
781 
782   case LibFunc_memchr:
783   case LibFunc_memrchr:
784     return (NumParams == 3 && FTy.getReturnType()->isPointerTy() &&
785             FTy.getReturnType() == FTy.getParamType(0) &&
786             FTy.getParamType(1)->isIntegerTy(32) &&
787             IsSizeTTy(FTy.getParamType(2)));
788   case LibFunc_modf:
789   case LibFunc_modff:
790   case LibFunc_modfl:
791     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
792 
793   case LibFunc_memcpy_chk:
794   case LibFunc_memmove_chk:
795     --NumParams;
796     if (!IsSizeTTy(FTy.getParamType(NumParams)))
797       return false;
798     LLVM_FALLTHROUGH;
799   case LibFunc_memcpy:
800   case LibFunc_mempcpy:
801   case LibFunc_memmove:
802     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
803             FTy.getParamType(0)->isPointerTy() &&
804             FTy.getParamType(1)->isPointerTy() &&
805             IsSizeTTy(FTy.getParamType(2)));
806 
807   case LibFunc_memset_chk:
808     --NumParams;
809     if (!IsSizeTTy(FTy.getParamType(NumParams)))
810       return false;
811     LLVM_FALLTHROUGH;
812   case LibFunc_memset:
813     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
814             FTy.getParamType(0)->isPointerTy() &&
815             FTy.getParamType(1)->isIntegerTy() &&
816             IsSizeTTy(FTy.getParamType(2)));
817 
818   case LibFunc_memccpy:
819     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
820   case LibFunc_memalign:
821     return (FTy.getReturnType()->isPointerTy());
822   case LibFunc_realloc:
823   case LibFunc_reallocf:
824     return (NumParams == 2 && FTy.getReturnType() == PCharTy &&
825             FTy.getParamType(0) == FTy.getReturnType() &&
826             IsSizeTTy(FTy.getParamType(1)));
827   case LibFunc_read:
828     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
829   case LibFunc_rewind:
830   case LibFunc_rmdir:
831   case LibFunc_remove:
832   case LibFunc_realpath:
833     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
834   case LibFunc_rename:
835     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
836             FTy.getParamType(1)->isPointerTy());
837   case LibFunc_readlink:
838     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
839             FTy.getParamType(1)->isPointerTy());
840   case LibFunc_write:
841     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
842   case LibFunc_bcopy:
843   case LibFunc_bcmp:
844     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
845             FTy.getParamType(1)->isPointerTy());
846   case LibFunc_bzero:
847     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
848   case LibFunc_calloc:
849     return (NumParams == 2 && FTy.getReturnType()->isPointerTy());
850 
851   case LibFunc_atof:
852   case LibFunc_atoi:
853   case LibFunc_atol:
854   case LibFunc_atoll:
855   case LibFunc_ferror:
856   case LibFunc_getenv:
857   case LibFunc_getpwnam:
858   case LibFunc_iprintf:
859   case LibFunc_pclose:
860   case LibFunc_perror:
861   case LibFunc_printf:
862   case LibFunc_puts:
863   case LibFunc_uname:
864   case LibFunc_under_IO_getc:
865   case LibFunc_unlink:
866   case LibFunc_unsetenv:
867     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
868 
869   case LibFunc_access:
870   case LibFunc_chmod:
871   case LibFunc_chown:
872   case LibFunc_clearerr:
873   case LibFunc_closedir:
874   case LibFunc_ctermid:
875   case LibFunc_fclose:
876   case LibFunc_feof:
877   case LibFunc_fflush:
878   case LibFunc_fgetc:
879   case LibFunc_fgetc_unlocked:
880   case LibFunc_fileno:
881   case LibFunc_flockfile:
882   case LibFunc_free:
883   case LibFunc_fseek:
884   case LibFunc_fseeko64:
885   case LibFunc_fseeko:
886   case LibFunc_fsetpos:
887   case LibFunc_ftell:
888   case LibFunc_ftello64:
889   case LibFunc_ftello:
890   case LibFunc_ftrylockfile:
891   case LibFunc_funlockfile:
892   case LibFunc_getc:
893   case LibFunc_getc_unlocked:
894   case LibFunc_getlogin_r:
895   case LibFunc_mkdir:
896   case LibFunc_mktime:
897   case LibFunc_times:
898     return (NumParams != 0 && FTy.getParamType(0)->isPointerTy());
899 
900   case LibFunc_fopen:
901     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
902             FTy.getParamType(0)->isPointerTy() &&
903             FTy.getParamType(1)->isPointerTy());
904   case LibFunc_fork:
905     return (NumParams == 0 && FTy.getReturnType()->isIntegerTy(32));
906   case LibFunc_fdopen:
907     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
908             FTy.getParamType(1)->isPointerTy());
909   case LibFunc_fputc:
910   case LibFunc_fputc_unlocked:
911   case LibFunc_fstat:
912   case LibFunc_frexp:
913   case LibFunc_frexpf:
914   case LibFunc_frexpl:
915   case LibFunc_fstatvfs:
916     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
917   case LibFunc_fgets:
918   case LibFunc_fgets_unlocked:
919     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
920             FTy.getParamType(2)->isPointerTy());
921   case LibFunc_fread:
922   case LibFunc_fread_unlocked:
923     return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() &&
924             FTy.getParamType(3)->isPointerTy());
925   case LibFunc_fwrite:
926   case LibFunc_fwrite_unlocked:
927     return (NumParams == 4 && FTy.getReturnType()->isIntegerTy() &&
928             FTy.getParamType(0)->isPointerTy() &&
929             FTy.getParamType(1)->isIntegerTy() &&
930             FTy.getParamType(2)->isIntegerTy() &&
931             FTy.getParamType(3)->isPointerTy());
932   case LibFunc_fputs:
933   case LibFunc_fputs_unlocked:
934     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
935             FTy.getParamType(1)->isPointerTy());
936   case LibFunc_fscanf:
937   case LibFunc_fiprintf:
938   case LibFunc_fprintf:
939     return (NumParams >= 2 && FTy.getReturnType()->isIntegerTy() &&
940             FTy.getParamType(0)->isPointerTy() &&
941             FTy.getParamType(1)->isPointerTy());
942   case LibFunc_fgetpos:
943     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
944             FTy.getParamType(1)->isPointerTy());
945   case LibFunc_getchar:
946   case LibFunc_getchar_unlocked:
947     return (NumParams == 0 && FTy.getReturnType()->isIntegerTy());
948   case LibFunc_gets:
949     return (NumParams == 1 && FTy.getParamType(0) == PCharTy);
950   case LibFunc_getitimer:
951     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
952   case LibFunc_ungetc:
953     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
954   case LibFunc_utime:
955   case LibFunc_utimes:
956     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
957             FTy.getParamType(1)->isPointerTy());
958   case LibFunc_putc:
959   case LibFunc_putc_unlocked:
960     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
961   case LibFunc_pread:
962   case LibFunc_pwrite:
963     return (NumParams == 4 && FTy.getParamType(1)->isPointerTy());
964   case LibFunc_popen:
965     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
966             FTy.getParamType(0)->isPointerTy() &&
967             FTy.getParamType(1)->isPointerTy());
968   case LibFunc_vscanf:
969     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
970   case LibFunc_vsscanf:
971     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
972             FTy.getParamType(2)->isPointerTy());
973   case LibFunc_vfscanf:
974     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
975             FTy.getParamType(2)->isPointerTy());
976   case LibFunc_valloc:
977     return (FTy.getReturnType()->isPointerTy());
978   case LibFunc_vprintf:
979     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
980   case LibFunc_vfprintf:
981   case LibFunc_vsprintf:
982     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
983             FTy.getParamType(1)->isPointerTy());
984   case LibFunc_vsnprintf:
985     return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() &&
986             FTy.getParamType(2)->isPointerTy());
987   case LibFunc_open:
988     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy());
989   case LibFunc_opendir:
990     return (NumParams == 1 && FTy.getReturnType()->isPointerTy() &&
991             FTy.getParamType(0)->isPointerTy());
992   case LibFunc_tmpfile:
993     return (FTy.getReturnType()->isPointerTy());
994   case LibFunc_htonl:
995   case LibFunc_ntohl:
996     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
997             FTy.getReturnType() == FTy.getParamType(0));
998   case LibFunc_htons:
999   case LibFunc_ntohs:
1000     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(16) &&
1001             FTy.getReturnType() == FTy.getParamType(0));
1002   case LibFunc_lstat:
1003     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
1004             FTy.getParamType(1)->isPointerTy());
1005   case LibFunc_lchown:
1006     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy());
1007   case LibFunc_qsort:
1008     return (NumParams == 4 && FTy.getParamType(3)->isPointerTy());
1009   case LibFunc_dunder_strdup:
1010   case LibFunc_dunder_strndup:
1011     return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() &&
1012             FTy.getParamType(0)->isPointerTy());
1013   case LibFunc_dunder_strtok_r:
1014     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
1015   case LibFunc_under_IO_putc:
1016     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
1017   case LibFunc_dunder_isoc99_scanf:
1018     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
1019   case LibFunc_stat64:
1020   case LibFunc_lstat64:
1021   case LibFunc_statvfs64:
1022     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
1023             FTy.getParamType(1)->isPointerTy());
1024   case LibFunc_dunder_isoc99_sscanf:
1025     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
1026             FTy.getParamType(1)->isPointerTy());
1027   case LibFunc_fopen64:
1028     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
1029             FTy.getParamType(0)->isPointerTy() &&
1030             FTy.getParamType(1)->isPointerTy());
1031   case LibFunc_tmpfile64:
1032     return (FTy.getReturnType()->isPointerTy());
1033   case LibFunc_fstat64:
1034   case LibFunc_fstatvfs64:
1035     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
1036   case LibFunc_open64:
1037     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy());
1038   case LibFunc_gettimeofday:
1039     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
1040             FTy.getParamType(1)->isPointerTy());
1041 
1042   // new(unsigned int);
1043   case LibFunc_Znwj:
1044   // new(unsigned long);
1045   case LibFunc_Znwm:
1046   // new[](unsigned int);
1047   case LibFunc_Znaj:
1048   // new[](unsigned long);
1049   case LibFunc_Znam:
1050   // new(unsigned int);
1051   case LibFunc_msvc_new_int:
1052   // new(unsigned long long);
1053   case LibFunc_msvc_new_longlong:
1054   // new[](unsigned int);
1055   case LibFunc_msvc_new_array_int:
1056   // new[](unsigned long long);
1057   case LibFunc_msvc_new_array_longlong:
1058     return (NumParams == 1 && FTy.getReturnType()->isPointerTy());
1059 
1060   // new(unsigned int, nothrow);
1061   case LibFunc_ZnwjRKSt9nothrow_t:
1062   // new(unsigned long, nothrow);
1063   case LibFunc_ZnwmRKSt9nothrow_t:
1064   // new[](unsigned int, nothrow);
1065   case LibFunc_ZnajRKSt9nothrow_t:
1066   // new[](unsigned long, nothrow);
1067   case LibFunc_ZnamRKSt9nothrow_t:
1068   // new(unsigned int, nothrow);
1069   case LibFunc_msvc_new_int_nothrow:
1070   // new(unsigned long long, nothrow);
1071   case LibFunc_msvc_new_longlong_nothrow:
1072   // new[](unsigned int, nothrow);
1073   case LibFunc_msvc_new_array_int_nothrow:
1074   // new[](unsigned long long, nothrow);
1075   case LibFunc_msvc_new_array_longlong_nothrow:
1076   // new(unsigned int, align_val_t)
1077   case LibFunc_ZnwjSt11align_val_t:
1078   // new(unsigned long, align_val_t)
1079   case LibFunc_ZnwmSt11align_val_t:
1080   // new[](unsigned int, align_val_t)
1081   case LibFunc_ZnajSt11align_val_t:
1082   // new[](unsigned long, align_val_t)
1083   case LibFunc_ZnamSt11align_val_t:
1084     return (NumParams == 2 && FTy.getReturnType()->isPointerTy());
1085 
1086   // new(unsigned int, align_val_t, nothrow)
1087   case LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t:
1088   // new(unsigned long, align_val_t, nothrow)
1089   case LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t:
1090   // new[](unsigned int, align_val_t, nothrow)
1091   case LibFunc_ZnajSt11align_val_tRKSt9nothrow_t:
1092   // new[](unsigned long, align_val_t, nothrow)
1093   case LibFunc_ZnamSt11align_val_tRKSt9nothrow_t:
1094     return (NumParams == 3 && FTy.getReturnType()->isPointerTy());
1095 
1096   // void operator delete[](void*);
1097   case LibFunc_ZdaPv:
1098   // void operator delete(void*);
1099   case LibFunc_ZdlPv:
1100   // void operator delete[](void*);
1101   case LibFunc_msvc_delete_array_ptr32:
1102   // void operator delete[](void*);
1103   case LibFunc_msvc_delete_array_ptr64:
1104   // void operator delete(void*);
1105   case LibFunc_msvc_delete_ptr32:
1106   // void operator delete(void*);
1107   case LibFunc_msvc_delete_ptr64:
1108     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
1109 
1110   // void operator delete[](void*, nothrow);
1111   case LibFunc_ZdaPvRKSt9nothrow_t:
1112   // void operator delete[](void*, unsigned int);
1113   case LibFunc_ZdaPvj:
1114   // void operator delete[](void*, unsigned long);
1115   case LibFunc_ZdaPvm:
1116   // void operator delete(void*, nothrow);
1117   case LibFunc_ZdlPvRKSt9nothrow_t:
1118   // void operator delete(void*, unsigned int);
1119   case LibFunc_ZdlPvj:
1120   // void operator delete(void*, unsigned long);
1121   case LibFunc_ZdlPvm:
1122   // void operator delete(void*, align_val_t)
1123   case LibFunc_ZdlPvSt11align_val_t:
1124   // void operator delete[](void*, align_val_t)
1125   case LibFunc_ZdaPvSt11align_val_t:
1126   // void operator delete[](void*, unsigned int);
1127   case LibFunc_msvc_delete_array_ptr32_int:
1128   // void operator delete[](void*, nothrow);
1129   case LibFunc_msvc_delete_array_ptr32_nothrow:
1130   // void operator delete[](void*, unsigned long long);
1131   case LibFunc_msvc_delete_array_ptr64_longlong:
1132   // void operator delete[](void*, nothrow);
1133   case LibFunc_msvc_delete_array_ptr64_nothrow:
1134   // void operator delete(void*, unsigned int);
1135   case LibFunc_msvc_delete_ptr32_int:
1136   // void operator delete(void*, nothrow);
1137   case LibFunc_msvc_delete_ptr32_nothrow:
1138   // void operator delete(void*, unsigned long long);
1139   case LibFunc_msvc_delete_ptr64_longlong:
1140   // void operator delete(void*, nothrow);
1141   case LibFunc_msvc_delete_ptr64_nothrow:
1142     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
1143 
1144   // void operator delete(void*, align_val_t, nothrow)
1145   case LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t:
1146   // void operator delete[](void*, align_val_t, nothrow)
1147   case LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t:
1148     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy());
1149 
1150   case LibFunc_memset_pattern16:
1151     return (!FTy.isVarArg() && NumParams == 3 &&
1152             FTy.getParamType(0)->isPointerTy() &&
1153             FTy.getParamType(1)->isPointerTy() &&
1154             FTy.getParamType(2)->isIntegerTy());
1155 
1156   case LibFunc_cxa_guard_abort:
1157   case LibFunc_cxa_guard_acquire:
1158   case LibFunc_cxa_guard_release:
1159   case LibFunc_nvvm_reflect:
1160     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
1161 
1162   case LibFunc_sincospi_stret:
1163   case LibFunc_sincospif_stret:
1164     return (NumParams == 1 && FTy.getParamType(0)->isFloatingPointTy());
1165 
1166   case LibFunc_acos:
1167   case LibFunc_acos_finite:
1168   case LibFunc_acosf:
1169   case LibFunc_acosf_finite:
1170   case LibFunc_acosh:
1171   case LibFunc_acosh_finite:
1172   case LibFunc_acoshf:
1173   case LibFunc_acoshf_finite:
1174   case LibFunc_acoshl:
1175   case LibFunc_acoshl_finite:
1176   case LibFunc_acosl:
1177   case LibFunc_acosl_finite:
1178   case LibFunc_asin:
1179   case LibFunc_asin_finite:
1180   case LibFunc_asinf:
1181   case LibFunc_asinf_finite:
1182   case LibFunc_asinh:
1183   case LibFunc_asinhf:
1184   case LibFunc_asinhl:
1185   case LibFunc_asinl:
1186   case LibFunc_asinl_finite:
1187   case LibFunc_atan:
1188   case LibFunc_atanf:
1189   case LibFunc_atanh:
1190   case LibFunc_atanh_finite:
1191   case LibFunc_atanhf:
1192   case LibFunc_atanhf_finite:
1193   case LibFunc_atanhl:
1194   case LibFunc_atanhl_finite:
1195   case LibFunc_atanl:
1196   case LibFunc_cbrt:
1197   case LibFunc_cbrtf:
1198   case LibFunc_cbrtl:
1199   case LibFunc_ceil:
1200   case LibFunc_ceilf:
1201   case LibFunc_ceill:
1202   case LibFunc_cos:
1203   case LibFunc_cosf:
1204   case LibFunc_cosh:
1205   case LibFunc_cosh_finite:
1206   case LibFunc_coshf:
1207   case LibFunc_coshf_finite:
1208   case LibFunc_coshl:
1209   case LibFunc_coshl_finite:
1210   case LibFunc_cosl:
1211   case LibFunc_exp10:
1212   case LibFunc_exp10_finite:
1213   case LibFunc_exp10f:
1214   case LibFunc_exp10f_finite:
1215   case LibFunc_exp10l:
1216   case LibFunc_exp10l_finite:
1217   case LibFunc_exp2:
1218   case LibFunc_exp2_finite:
1219   case LibFunc_exp2f:
1220   case LibFunc_exp2f_finite:
1221   case LibFunc_exp2l:
1222   case LibFunc_exp2l_finite:
1223   case LibFunc_exp:
1224   case LibFunc_exp_finite:
1225   case LibFunc_expf:
1226   case LibFunc_expf_finite:
1227   case LibFunc_expl:
1228   case LibFunc_expl_finite:
1229   case LibFunc_expm1:
1230   case LibFunc_expm1f:
1231   case LibFunc_expm1l:
1232   case LibFunc_fabs:
1233   case LibFunc_fabsf:
1234   case LibFunc_fabsl:
1235   case LibFunc_floor:
1236   case LibFunc_floorf:
1237   case LibFunc_floorl:
1238   case LibFunc_log10:
1239   case LibFunc_log10_finite:
1240   case LibFunc_log10f:
1241   case LibFunc_log10f_finite:
1242   case LibFunc_log10l:
1243   case LibFunc_log10l_finite:
1244   case LibFunc_log1p:
1245   case LibFunc_log1pf:
1246   case LibFunc_log1pl:
1247   case LibFunc_log2:
1248   case LibFunc_log2_finite:
1249   case LibFunc_log2f:
1250   case LibFunc_log2f_finite:
1251   case LibFunc_log2l:
1252   case LibFunc_log2l_finite:
1253   case LibFunc_log:
1254   case LibFunc_log_finite:
1255   case LibFunc_logb:
1256   case LibFunc_logbf:
1257   case LibFunc_logbl:
1258   case LibFunc_logf:
1259   case LibFunc_logf_finite:
1260   case LibFunc_logl:
1261   case LibFunc_logl_finite:
1262   case LibFunc_nearbyint:
1263   case LibFunc_nearbyintf:
1264   case LibFunc_nearbyintl:
1265   case LibFunc_rint:
1266   case LibFunc_rintf:
1267   case LibFunc_rintl:
1268   case LibFunc_round:
1269   case LibFunc_roundf:
1270   case LibFunc_roundl:
1271   case LibFunc_sin:
1272   case LibFunc_sinf:
1273   case LibFunc_sinh:
1274   case LibFunc_sinh_finite:
1275   case LibFunc_sinhf:
1276   case LibFunc_sinhf_finite:
1277   case LibFunc_sinhl:
1278   case LibFunc_sinhl_finite:
1279   case LibFunc_sinl:
1280   case LibFunc_sqrt:
1281   case LibFunc_sqrt_finite:
1282   case LibFunc_sqrtf:
1283   case LibFunc_sqrtf_finite:
1284   case LibFunc_sqrtl:
1285   case LibFunc_sqrtl_finite:
1286   case LibFunc_tan:
1287   case LibFunc_tanf:
1288   case LibFunc_tanh:
1289   case LibFunc_tanhf:
1290   case LibFunc_tanhl:
1291   case LibFunc_tanl:
1292   case LibFunc_trunc:
1293   case LibFunc_truncf:
1294   case LibFunc_truncl:
1295     return (NumParams == 1 && FTy.getReturnType()->isFloatingPointTy() &&
1296             FTy.getReturnType() == FTy.getParamType(0));
1297 
1298   case LibFunc_atan2:
1299   case LibFunc_atan2_finite:
1300   case LibFunc_atan2f:
1301   case LibFunc_atan2f_finite:
1302   case LibFunc_atan2l:
1303   case LibFunc_atan2l_finite:
1304   case LibFunc_fmin:
1305   case LibFunc_fminf:
1306   case LibFunc_fminl:
1307   case LibFunc_fmax:
1308   case LibFunc_fmaxf:
1309   case LibFunc_fmaxl:
1310   case LibFunc_fmod:
1311   case LibFunc_fmodf:
1312   case LibFunc_fmodl:
1313   case LibFunc_copysign:
1314   case LibFunc_copysignf:
1315   case LibFunc_copysignl:
1316   case LibFunc_pow:
1317   case LibFunc_pow_finite:
1318   case LibFunc_powf:
1319   case LibFunc_powf_finite:
1320   case LibFunc_powl:
1321   case LibFunc_powl_finite:
1322     return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() &&
1323             FTy.getReturnType() == FTy.getParamType(0) &&
1324             FTy.getReturnType() == FTy.getParamType(1));
1325 
1326   case LibFunc_ldexp:
1327   case LibFunc_ldexpf:
1328   case LibFunc_ldexpl:
1329     return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() &&
1330             FTy.getReturnType() == FTy.getParamType(0) &&
1331             FTy.getParamType(1)->isIntegerTy(32));
1332 
1333   case LibFunc_ffs:
1334   case LibFunc_ffsl:
1335   case LibFunc_ffsll:
1336   case LibFunc_fls:
1337   case LibFunc_flsl:
1338   case LibFunc_flsll:
1339     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
1340             FTy.getParamType(0)->isIntegerTy());
1341 
1342   case LibFunc_isdigit:
1343   case LibFunc_isascii:
1344   case LibFunc_toascii:
1345   case LibFunc_putchar:
1346   case LibFunc_putchar_unlocked:
1347     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
1348             FTy.getReturnType() == FTy.getParamType(0));
1349 
1350   case LibFunc_abs:
1351   case LibFunc_labs:
1352   case LibFunc_llabs:
1353     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy() &&
1354             FTy.getReturnType() == FTy.getParamType(0));
1355 
1356   case LibFunc_cxa_atexit:
1357     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy() &&
1358             FTy.getParamType(0)->isPointerTy() &&
1359             FTy.getParamType(1)->isPointerTy() &&
1360             FTy.getParamType(2)->isPointerTy());
1361 
1362   case LibFunc_sinpi:
1363   case LibFunc_cospi:
1364     return (NumParams == 1 && FTy.getReturnType()->isDoubleTy() &&
1365             FTy.getReturnType() == FTy.getParamType(0));
1366 
1367   case LibFunc_sinpif:
1368   case LibFunc_cospif:
1369     return (NumParams == 1 && FTy.getReturnType()->isFloatTy() &&
1370             FTy.getReturnType() == FTy.getParamType(0));
1371 
1372   case LibFunc_strnlen:
1373     return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(1) &&
1374             FTy.getParamType(0) == PCharTy &&
1375             FTy.getParamType(1) == SizeTTy);
1376 
1377   case LibFunc_posix_memalign:
1378     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
1379             FTy.getParamType(0)->isPointerTy() &&
1380             FTy.getParamType(1) == SizeTTy && FTy.getParamType(2) == SizeTTy);
1381 
1382   case LibFunc_wcslen:
1383     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() &&
1384             FTy.getReturnType()->isIntegerTy());
1385 
1386   case LibFunc_cabs:
1387   case LibFunc_cabsf:
1388   case LibFunc_cabsl: {
1389     Type* RetTy = FTy.getReturnType();
1390     if (!RetTy->isFloatingPointTy())
1391       return false;
1392 
1393     // NOTE: These prototypes are target specific and currently support
1394     // "complex" passed as an array or discrete real & imaginary parameters.
1395     // Add other calling conventions to enable libcall optimizations.
1396     if (NumParams == 1)
1397       return (FTy.getParamType(0)->isArrayTy() &&
1398               FTy.getParamType(0)->getArrayNumElements() == 2 &&
1399               FTy.getParamType(0)->getArrayElementType() == RetTy);
1400     else if (NumParams == 2)
1401       return (FTy.getParamType(0) == RetTy && FTy.getParamType(1) == RetTy);
1402     else
1403       return false;
1404   }
1405   case LibFunc::NumLibFuncs:
1406     break;
1407   }
1408 
1409   llvm_unreachable("Invalid libfunc");
1410 }
1411 
1412 bool TargetLibraryInfoImpl::getLibFunc(const Function &FDecl,
1413                                        LibFunc &F) const {
1414   const DataLayout *DL =
1415       FDecl.getParent() ? &FDecl.getParent()->getDataLayout() : nullptr;
1416   return getLibFunc(FDecl.getName(), F) &&
1417          isValidProtoForLibFunc(*FDecl.getFunctionType(), F, DL);
1418 }
1419 
1420 void TargetLibraryInfoImpl::disableAllFunctions() {
1421   memset(AvailableArray, 0, sizeof(AvailableArray));
1422 }
1423 
1424 static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) {
1425   return LHS.ScalarFnName < RHS.ScalarFnName;
1426 }
1427 
1428 static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) {
1429   return LHS.VectorFnName < RHS.VectorFnName;
1430 }
1431 
1432 static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) {
1433   return LHS.ScalarFnName < S;
1434 }
1435 
1436 static bool compareWithVectorFnName(const VecDesc &LHS, StringRef S) {
1437   return LHS.VectorFnName < S;
1438 }
1439 
1440 void TargetLibraryInfoImpl::addVectorizableFunctions(ArrayRef<VecDesc> Fns) {
1441   VectorDescs.insert(VectorDescs.end(), Fns.begin(), Fns.end());
1442   llvm::sort(VectorDescs, compareByScalarFnName);
1443 
1444   ScalarDescs.insert(ScalarDescs.end(), Fns.begin(), Fns.end());
1445   llvm::sort(ScalarDescs, compareByVectorFnName);
1446 }
1447 
1448 void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib(
1449     enum VectorLibrary VecLib) {
1450   switch (VecLib) {
1451   case Accelerate: {
1452     const VecDesc VecFuncs[] = {
1453         // Floating-Point Arithmetic and Auxiliary Functions
1454         {"ceilf", "vceilf", 4},
1455         {"fabsf", "vfabsf", 4},
1456         {"llvm.fabs.f32", "vfabsf", 4},
1457         {"floorf", "vfloorf", 4},
1458         {"sqrtf", "vsqrtf", 4},
1459         {"llvm.sqrt.f32", "vsqrtf", 4},
1460 
1461         // Exponential and Logarithmic Functions
1462         {"expf", "vexpf", 4},
1463         {"llvm.exp.f32", "vexpf", 4},
1464         {"expm1f", "vexpm1f", 4},
1465         {"logf", "vlogf", 4},
1466         {"llvm.log.f32", "vlogf", 4},
1467         {"log1pf", "vlog1pf", 4},
1468         {"log10f", "vlog10f", 4},
1469         {"llvm.log10.f32", "vlog10f", 4},
1470         {"logbf", "vlogbf", 4},
1471 
1472         // Trigonometric Functions
1473         {"sinf", "vsinf", 4},
1474         {"llvm.sin.f32", "vsinf", 4},
1475         {"cosf", "vcosf", 4},
1476         {"llvm.cos.f32", "vcosf", 4},
1477         {"tanf", "vtanf", 4},
1478         {"asinf", "vasinf", 4},
1479         {"acosf", "vacosf", 4},
1480         {"atanf", "vatanf", 4},
1481 
1482         // Hyperbolic Functions
1483         {"sinhf", "vsinhf", 4},
1484         {"coshf", "vcoshf", 4},
1485         {"tanhf", "vtanhf", 4},
1486         {"asinhf", "vasinhf", 4},
1487         {"acoshf", "vacoshf", 4},
1488         {"atanhf", "vatanhf", 4},
1489     };
1490     addVectorizableFunctions(VecFuncs);
1491     break;
1492   }
1493   case SVML: {
1494     const VecDesc VecFuncs[] = {
1495         {"sin", "__svml_sin2", 2},
1496         {"sin", "__svml_sin4", 4},
1497         {"sin", "__svml_sin8", 8},
1498 
1499         {"sinf", "__svml_sinf4", 4},
1500         {"sinf", "__svml_sinf8", 8},
1501         {"sinf", "__svml_sinf16", 16},
1502 
1503         {"llvm.sin.f64", "__svml_sin2", 2},
1504         {"llvm.sin.f64", "__svml_sin4", 4},
1505         {"llvm.sin.f64", "__svml_sin8", 8},
1506 
1507         {"llvm.sin.f32", "__svml_sinf4", 4},
1508         {"llvm.sin.f32", "__svml_sinf8", 8},
1509         {"llvm.sin.f32", "__svml_sinf16", 16},
1510 
1511         {"cos", "__svml_cos2", 2},
1512         {"cos", "__svml_cos4", 4},
1513         {"cos", "__svml_cos8", 8},
1514 
1515         {"cosf", "__svml_cosf4", 4},
1516         {"cosf", "__svml_cosf8", 8},
1517         {"cosf", "__svml_cosf16", 16},
1518 
1519         {"llvm.cos.f64", "__svml_cos2", 2},
1520         {"llvm.cos.f64", "__svml_cos4", 4},
1521         {"llvm.cos.f64", "__svml_cos8", 8},
1522 
1523         {"llvm.cos.f32", "__svml_cosf4", 4},
1524         {"llvm.cos.f32", "__svml_cosf8", 8},
1525         {"llvm.cos.f32", "__svml_cosf16", 16},
1526 
1527         {"pow", "__svml_pow2", 2},
1528         {"pow", "__svml_pow4", 4},
1529         {"pow", "__svml_pow8", 8},
1530 
1531         {"powf", "__svml_powf4", 4},
1532         {"powf", "__svml_powf8", 8},
1533         {"powf", "__svml_powf16", 16},
1534 
1535         { "__pow_finite", "__svml_pow2", 2 },
1536         { "__pow_finite", "__svml_pow4", 4 },
1537         { "__pow_finite", "__svml_pow8", 8 },
1538 
1539         { "__powf_finite", "__svml_powf4", 4 },
1540         { "__powf_finite", "__svml_powf8", 8 },
1541         { "__powf_finite", "__svml_powf16", 16 },
1542 
1543         {"llvm.pow.f64", "__svml_pow2", 2},
1544         {"llvm.pow.f64", "__svml_pow4", 4},
1545         {"llvm.pow.f64", "__svml_pow8", 8},
1546 
1547         {"llvm.pow.f32", "__svml_powf4", 4},
1548         {"llvm.pow.f32", "__svml_powf8", 8},
1549         {"llvm.pow.f32", "__svml_powf16", 16},
1550 
1551         {"exp", "__svml_exp2", 2},
1552         {"exp", "__svml_exp4", 4},
1553         {"exp", "__svml_exp8", 8},
1554 
1555         {"expf", "__svml_expf4", 4},
1556         {"expf", "__svml_expf8", 8},
1557         {"expf", "__svml_expf16", 16},
1558 
1559         { "__exp_finite", "__svml_exp2", 2 },
1560         { "__exp_finite", "__svml_exp4", 4 },
1561         { "__exp_finite", "__svml_exp8", 8 },
1562 
1563         { "__expf_finite", "__svml_expf4", 4 },
1564         { "__expf_finite", "__svml_expf8", 8 },
1565         { "__expf_finite", "__svml_expf16", 16 },
1566 
1567         {"llvm.exp.f64", "__svml_exp2", 2},
1568         {"llvm.exp.f64", "__svml_exp4", 4},
1569         {"llvm.exp.f64", "__svml_exp8", 8},
1570 
1571         {"llvm.exp.f32", "__svml_expf4", 4},
1572         {"llvm.exp.f32", "__svml_expf8", 8},
1573         {"llvm.exp.f32", "__svml_expf16", 16},
1574 
1575         {"log", "__svml_log2", 2},
1576         {"log", "__svml_log4", 4},
1577         {"log", "__svml_log8", 8},
1578 
1579         {"logf", "__svml_logf4", 4},
1580         {"logf", "__svml_logf8", 8},
1581         {"logf", "__svml_logf16", 16},
1582 
1583         { "__log_finite", "__svml_log2", 2 },
1584         { "__log_finite", "__svml_log4", 4 },
1585         { "__log_finite", "__svml_log8", 8 },
1586 
1587         { "__logf_finite", "__svml_logf4", 4 },
1588         { "__logf_finite", "__svml_logf8", 8 },
1589         { "__logf_finite", "__svml_logf16", 16 },
1590 
1591         {"llvm.log.f64", "__svml_log2", 2},
1592         {"llvm.log.f64", "__svml_log4", 4},
1593         {"llvm.log.f64", "__svml_log8", 8},
1594 
1595         {"llvm.log.f32", "__svml_logf4", 4},
1596         {"llvm.log.f32", "__svml_logf8", 8},
1597         {"llvm.log.f32", "__svml_logf16", 16},
1598     };
1599     addVectorizableFunctions(VecFuncs);
1600     break;
1601   }
1602   case NoLibrary:
1603     break;
1604   }
1605 }
1606 
1607 bool TargetLibraryInfoImpl::isFunctionVectorizable(StringRef funcName) const {
1608   funcName = sanitizeFunctionName(funcName);
1609   if (funcName.empty())
1610     return false;
1611 
1612   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1613       VectorDescs.begin(), VectorDescs.end(), funcName,
1614       compareWithScalarFnName);
1615   return I != VectorDescs.end() && StringRef(I->ScalarFnName) == funcName;
1616 }
1617 
1618 StringRef TargetLibraryInfoImpl::getVectorizedFunction(StringRef F,
1619                                                        unsigned VF) const {
1620   F = sanitizeFunctionName(F);
1621   if (F.empty())
1622     return F;
1623   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1624       VectorDescs.begin(), VectorDescs.end(), F, compareWithScalarFnName);
1625   while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == F) {
1626     if (I->VectorizationFactor == VF)
1627       return I->VectorFnName;
1628     ++I;
1629   }
1630   return StringRef();
1631 }
1632 
1633 StringRef TargetLibraryInfoImpl::getScalarizedFunction(StringRef F,
1634                                                        unsigned &VF) const {
1635   F = sanitizeFunctionName(F);
1636   if (F.empty())
1637     return F;
1638 
1639   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1640       ScalarDescs.begin(), ScalarDescs.end(), F, compareWithVectorFnName);
1641   if (I == VectorDescs.end() || StringRef(I->VectorFnName) != F)
1642     return StringRef();
1643   VF = I->VectorizationFactor;
1644   return I->ScalarFnName;
1645 }
1646 
1647 TargetLibraryInfo TargetLibraryAnalysis::run(Module &M,
1648                                              ModuleAnalysisManager &) {
1649   if (PresetInfoImpl)
1650     return TargetLibraryInfo(*PresetInfoImpl);
1651 
1652   return TargetLibraryInfo(lookupInfoImpl(Triple(M.getTargetTriple())));
1653 }
1654 
1655 TargetLibraryInfo TargetLibraryAnalysis::run(Function &F,
1656                                              FunctionAnalysisManager &) {
1657   if (PresetInfoImpl)
1658     return TargetLibraryInfo(*PresetInfoImpl);
1659 
1660   return TargetLibraryInfo(
1661       lookupInfoImpl(Triple(F.getParent()->getTargetTriple())));
1662 }
1663 
1664 TargetLibraryInfoImpl &TargetLibraryAnalysis::lookupInfoImpl(const Triple &T) {
1665   std::unique_ptr<TargetLibraryInfoImpl> &Impl =
1666       Impls[T.normalize()];
1667   if (!Impl)
1668     Impl.reset(new TargetLibraryInfoImpl(T));
1669 
1670   return *Impl;
1671 }
1672 
1673 unsigned TargetLibraryInfoImpl::getWCharSize(const Module &M) const {
1674   if (auto *ShortWChar = cast_or_null<ConstantAsMetadata>(
1675       M.getModuleFlag("wchar_size")))
1676     return cast<ConstantInt>(ShortWChar->getValue())->getZExtValue();
1677   return 0;
1678 }
1679 
1680 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass()
1681     : ImmutablePass(ID), TLIImpl(), TLI(TLIImpl) {
1682   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1683 }
1684 
1685 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(const Triple &T)
1686     : ImmutablePass(ID), TLIImpl(T), TLI(TLIImpl) {
1687   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1688 }
1689 
1690 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(
1691     const TargetLibraryInfoImpl &TLIImpl)
1692     : ImmutablePass(ID), TLIImpl(TLIImpl), TLI(this->TLIImpl) {
1693   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1694 }
1695 
1696 AnalysisKey TargetLibraryAnalysis::Key;
1697 
1698 // Register the basic pass.
1699 INITIALIZE_PASS(TargetLibraryInfoWrapperPass, "targetlibinfo",
1700                 "Target Library Information", false, true)
1701 char TargetLibraryInfoWrapperPass::ID = 0;
1702 
1703 void TargetLibraryInfoWrapperPass::anchor() {}
1704