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 - Initialize the set of available library functions based on the
54 /// specified target triple.  This should be carefully written so that a missing
55 /// target 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   bool ShouldExtI32Param = false, ShouldExtI32Return = false,
66        ShouldSignExtI32Param = false;
67   // PowerPC64, Sparc64, SystemZ need signext/zeroext on i32 parameters and
68   // returns corresponding to C-level ints and unsigned ints.
69   if (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le ||
70       T.getArch() == Triple::sparcv9 || T.getArch() == Triple::systemz) {
71     ShouldExtI32Param = true;
72     ShouldExtI32Return = true;
73   }
74   // Mips, on the other hand, needs signext on i32 parameters corresponding
75   // to both signed and unsigned ints.
76   if (T.getArch() == Triple::mips || T.getArch() == Triple::mipsel ||
77       T.getArch() == Triple::mips64 || T.getArch() == Triple::mips64el) {
78     ShouldSignExtI32Param = true;
79   }
80   TLI.setShouldExtI32Param(ShouldExtI32Param);
81   TLI.setShouldExtI32Return(ShouldExtI32Return);
82   TLI.setShouldSignExtI32Param(ShouldSignExtI32Param);
83 
84   if (T.getArch() == Triple::r600 ||
85       T.getArch() == Triple::amdgcn) {
86     TLI.setUnavailable(LibFunc_ldexp);
87     TLI.setUnavailable(LibFunc_ldexpf);
88     TLI.setUnavailable(LibFunc_ldexpl);
89     TLI.setUnavailable(LibFunc_exp10);
90     TLI.setUnavailable(LibFunc_exp10f);
91     TLI.setUnavailable(LibFunc_exp10l);
92     TLI.setUnavailable(LibFunc_log10);
93     TLI.setUnavailable(LibFunc_log10f);
94     TLI.setUnavailable(LibFunc_log10l);
95   }
96 
97   // There are no library implementations of mempcy and memset for AMD gpus and
98   // these can be difficult to lower in the backend.
99   if (T.getArch() == Triple::r600 ||
100       T.getArch() == Triple::amdgcn) {
101     TLI.setUnavailable(LibFunc_memcpy);
102     TLI.setUnavailable(LibFunc_memset);
103     TLI.setUnavailable(LibFunc_memset_pattern16);
104     return;
105   }
106 
107   // memset_pattern16 is only available on iOS 3.0 and Mac OS X 10.5 and later.
108   // All versions of watchOS support it.
109   if (T.isMacOSX()) {
110     if (T.isMacOSXVersionLT(10, 5))
111       TLI.setUnavailable(LibFunc_memset_pattern16);
112   } else if (T.isiOS()) {
113     if (T.isOSVersionLT(3, 0))
114       TLI.setUnavailable(LibFunc_memset_pattern16);
115   } else if (!T.isWatchOS()) {
116     TLI.setUnavailable(LibFunc_memset_pattern16);
117   }
118 
119   if (!hasSinCosPiStret(T)) {
120     TLI.setUnavailable(LibFunc_sinpi);
121     TLI.setUnavailable(LibFunc_sinpif);
122     TLI.setUnavailable(LibFunc_cospi);
123     TLI.setUnavailable(LibFunc_cospif);
124     TLI.setUnavailable(LibFunc_sincospi_stret);
125     TLI.setUnavailable(LibFunc_sincospif_stret);
126   }
127 
128   if (T.isMacOSX() && T.getArch() == Triple::x86 &&
129       !T.isMacOSXVersionLT(10, 7)) {
130     // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
131     // we don't care about) have two versions; on recent OSX, the one we want
132     // has a $UNIX2003 suffix. The two implementations are identical except
133     // for the return value in some edge cases.  However, we don't want to
134     // generate code that depends on the old symbols.
135     TLI.setAvailableWithName(LibFunc_fwrite, "fwrite$UNIX2003");
136     TLI.setAvailableWithName(LibFunc_fputs, "fputs$UNIX2003");
137   }
138 
139   // iprintf and friends are only available on XCore and TCE.
140   if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
141     TLI.setUnavailable(LibFunc_iprintf);
142     TLI.setUnavailable(LibFunc_siprintf);
143     TLI.setUnavailable(LibFunc_fiprintf);
144   }
145 
146   if (T.isOSWindows() && !T.isOSCygMing()) {
147     // Win32 does not support long double
148     TLI.setUnavailable(LibFunc_acosl);
149     TLI.setUnavailable(LibFunc_asinl);
150     TLI.setUnavailable(LibFunc_atanl);
151     TLI.setUnavailable(LibFunc_atan2l);
152     TLI.setUnavailable(LibFunc_ceill);
153     TLI.setUnavailable(LibFunc_copysignl);
154     TLI.setUnavailable(LibFunc_cosl);
155     TLI.setUnavailable(LibFunc_coshl);
156     TLI.setUnavailable(LibFunc_expl);
157     TLI.setUnavailable(LibFunc_fabsf); // Win32 and Win64 both lack fabsf
158     TLI.setUnavailable(LibFunc_fabsl);
159     TLI.setUnavailable(LibFunc_floorl);
160     TLI.setUnavailable(LibFunc_fmaxl);
161     TLI.setUnavailable(LibFunc_fminl);
162     TLI.setUnavailable(LibFunc_fmodl);
163     TLI.setUnavailable(LibFunc_frexpl);
164     TLI.setUnavailable(LibFunc_ldexpf);
165     TLI.setUnavailable(LibFunc_ldexpl);
166     TLI.setUnavailable(LibFunc_logl);
167     TLI.setUnavailable(LibFunc_modfl);
168     TLI.setUnavailable(LibFunc_powl);
169     TLI.setUnavailable(LibFunc_sinl);
170     TLI.setUnavailable(LibFunc_sinhl);
171     TLI.setUnavailable(LibFunc_sqrtl);
172     TLI.setUnavailable(LibFunc_tanl);
173     TLI.setUnavailable(LibFunc_tanhl);
174 
175     // Win32 only has C89 math
176     TLI.setUnavailable(LibFunc_acosh);
177     TLI.setUnavailable(LibFunc_acoshf);
178     TLI.setUnavailable(LibFunc_acoshl);
179     TLI.setUnavailable(LibFunc_asinh);
180     TLI.setUnavailable(LibFunc_asinhf);
181     TLI.setUnavailable(LibFunc_asinhl);
182     TLI.setUnavailable(LibFunc_atanh);
183     TLI.setUnavailable(LibFunc_atanhf);
184     TLI.setUnavailable(LibFunc_atanhl);
185     TLI.setUnavailable(LibFunc_cbrt);
186     TLI.setUnavailable(LibFunc_cbrtf);
187     TLI.setUnavailable(LibFunc_cbrtl);
188     TLI.setUnavailable(LibFunc_exp2);
189     TLI.setUnavailable(LibFunc_exp2f);
190     TLI.setUnavailable(LibFunc_exp2l);
191     TLI.setUnavailable(LibFunc_expm1);
192     TLI.setUnavailable(LibFunc_expm1f);
193     TLI.setUnavailable(LibFunc_expm1l);
194     TLI.setUnavailable(LibFunc_log2);
195     TLI.setUnavailable(LibFunc_log2f);
196     TLI.setUnavailable(LibFunc_log2l);
197     TLI.setUnavailable(LibFunc_log1p);
198     TLI.setUnavailable(LibFunc_log1pf);
199     TLI.setUnavailable(LibFunc_log1pl);
200     TLI.setUnavailable(LibFunc_logb);
201     TLI.setUnavailable(LibFunc_logbf);
202     TLI.setUnavailable(LibFunc_logbl);
203     TLI.setUnavailable(LibFunc_nearbyint);
204     TLI.setUnavailable(LibFunc_nearbyintf);
205     TLI.setUnavailable(LibFunc_nearbyintl);
206     TLI.setUnavailable(LibFunc_rint);
207     TLI.setUnavailable(LibFunc_rintf);
208     TLI.setUnavailable(LibFunc_rintl);
209     TLI.setUnavailable(LibFunc_round);
210     TLI.setUnavailable(LibFunc_roundf);
211     TLI.setUnavailable(LibFunc_roundl);
212     TLI.setUnavailable(LibFunc_trunc);
213     TLI.setUnavailable(LibFunc_truncf);
214     TLI.setUnavailable(LibFunc_truncl);
215 
216     // Win32 provides some C99 math with mangled names
217     TLI.setAvailableWithName(LibFunc_copysign, "_copysign");
218 
219     if (T.getArch() == Triple::x86) {
220       // Win32 on x86 implements single-precision math functions as macros
221       TLI.setUnavailable(LibFunc_acosf);
222       TLI.setUnavailable(LibFunc_asinf);
223       TLI.setUnavailable(LibFunc_atanf);
224       TLI.setUnavailable(LibFunc_atan2f);
225       TLI.setUnavailable(LibFunc_ceilf);
226       TLI.setUnavailable(LibFunc_copysignf);
227       TLI.setUnavailable(LibFunc_cosf);
228       TLI.setUnavailable(LibFunc_coshf);
229       TLI.setUnavailable(LibFunc_expf);
230       TLI.setUnavailable(LibFunc_floorf);
231       TLI.setUnavailable(LibFunc_fminf);
232       TLI.setUnavailable(LibFunc_fmaxf);
233       TLI.setUnavailable(LibFunc_fmodf);
234       TLI.setUnavailable(LibFunc_logf);
235       TLI.setUnavailable(LibFunc_log10f);
236       TLI.setUnavailable(LibFunc_modff);
237       TLI.setUnavailable(LibFunc_powf);
238       TLI.setUnavailable(LibFunc_sinf);
239       TLI.setUnavailable(LibFunc_sinhf);
240       TLI.setUnavailable(LibFunc_sqrtf);
241       TLI.setUnavailable(LibFunc_tanf);
242       TLI.setUnavailable(LibFunc_tanhf);
243     }
244 
245     // These definitions are due to math-finite.h header on Linux
246     TLI.setUnavailable(LibFunc_acos_finite);
247     TLI.setUnavailable(LibFunc_acosf_finite);
248     TLI.setUnavailable(LibFunc_acosl_finite);
249     TLI.setUnavailable(LibFunc_acosh_finite);
250     TLI.setUnavailable(LibFunc_acoshf_finite);
251     TLI.setUnavailable(LibFunc_acoshl_finite);
252     TLI.setUnavailable(LibFunc_asin_finite);
253     TLI.setUnavailable(LibFunc_asinf_finite);
254     TLI.setUnavailable(LibFunc_asinl_finite);
255     TLI.setUnavailable(LibFunc_atan2_finite);
256     TLI.setUnavailable(LibFunc_atan2f_finite);
257     TLI.setUnavailable(LibFunc_atan2l_finite);
258     TLI.setUnavailable(LibFunc_atanh_finite);
259     TLI.setUnavailable(LibFunc_atanhf_finite);
260     TLI.setUnavailable(LibFunc_atanhl_finite);
261     TLI.setUnavailable(LibFunc_cosh_finite);
262     TLI.setUnavailable(LibFunc_coshf_finite);
263     TLI.setUnavailable(LibFunc_coshl_finite);
264     TLI.setUnavailable(LibFunc_exp10_finite);
265     TLI.setUnavailable(LibFunc_exp10f_finite);
266     TLI.setUnavailable(LibFunc_exp10l_finite);
267     TLI.setUnavailable(LibFunc_exp2_finite);
268     TLI.setUnavailable(LibFunc_exp2f_finite);
269     TLI.setUnavailable(LibFunc_exp2l_finite);
270     TLI.setUnavailable(LibFunc_exp_finite);
271     TLI.setUnavailable(LibFunc_expf_finite);
272     TLI.setUnavailable(LibFunc_expl_finite);
273     TLI.setUnavailable(LibFunc_log10_finite);
274     TLI.setUnavailable(LibFunc_log10f_finite);
275     TLI.setUnavailable(LibFunc_log10l_finite);
276     TLI.setUnavailable(LibFunc_log2_finite);
277     TLI.setUnavailable(LibFunc_log2f_finite);
278     TLI.setUnavailable(LibFunc_log2l_finite);
279     TLI.setUnavailable(LibFunc_log_finite);
280     TLI.setUnavailable(LibFunc_logf_finite);
281     TLI.setUnavailable(LibFunc_logl_finite);
282     TLI.setUnavailable(LibFunc_pow_finite);
283     TLI.setUnavailable(LibFunc_powf_finite);
284     TLI.setUnavailable(LibFunc_powl_finite);
285     TLI.setUnavailable(LibFunc_sinh_finite);
286     TLI.setUnavailable(LibFunc_sinhf_finite);
287     TLI.setUnavailable(LibFunc_sinhl_finite);
288 
289     // Win32 does *not* provide provide these functions, but they are
290     // generally available on POSIX-compliant systems:
291     TLI.setUnavailable(LibFunc_access);
292     TLI.setUnavailable(LibFunc_bcmp);
293     TLI.setUnavailable(LibFunc_bcopy);
294     TLI.setUnavailable(LibFunc_bzero);
295     TLI.setUnavailable(LibFunc_chmod);
296     TLI.setUnavailable(LibFunc_chown);
297     TLI.setUnavailable(LibFunc_closedir);
298     TLI.setUnavailable(LibFunc_ctermid);
299     TLI.setUnavailable(LibFunc_fdopen);
300     TLI.setUnavailable(LibFunc_ffs);
301     TLI.setUnavailable(LibFunc_fileno);
302     TLI.setUnavailable(LibFunc_flockfile);
303     TLI.setUnavailable(LibFunc_fseeko);
304     TLI.setUnavailable(LibFunc_fstat);
305     TLI.setUnavailable(LibFunc_fstatvfs);
306     TLI.setUnavailable(LibFunc_ftello);
307     TLI.setUnavailable(LibFunc_ftrylockfile);
308     TLI.setUnavailable(LibFunc_funlockfile);
309     TLI.setUnavailable(LibFunc_getc_unlocked);
310     TLI.setUnavailable(LibFunc_getitimer);
311     TLI.setUnavailable(LibFunc_getlogin_r);
312     TLI.setUnavailable(LibFunc_getpwnam);
313     TLI.setUnavailable(LibFunc_gettimeofday);
314     TLI.setUnavailable(LibFunc_htonl);
315     TLI.setUnavailable(LibFunc_htons);
316     TLI.setUnavailable(LibFunc_lchown);
317     TLI.setUnavailable(LibFunc_lstat);
318     TLI.setUnavailable(LibFunc_memccpy);
319     TLI.setUnavailable(LibFunc_mkdir);
320     TLI.setUnavailable(LibFunc_ntohl);
321     TLI.setUnavailable(LibFunc_ntohs);
322     TLI.setUnavailable(LibFunc_open);
323     TLI.setUnavailable(LibFunc_opendir);
324     TLI.setUnavailable(LibFunc_pclose);
325     TLI.setUnavailable(LibFunc_popen);
326     TLI.setUnavailable(LibFunc_pread);
327     TLI.setUnavailable(LibFunc_pwrite);
328     TLI.setUnavailable(LibFunc_read);
329     TLI.setUnavailable(LibFunc_readlink);
330     TLI.setUnavailable(LibFunc_realpath);
331     TLI.setUnavailable(LibFunc_rmdir);
332     TLI.setUnavailable(LibFunc_setitimer);
333     TLI.setUnavailable(LibFunc_stat);
334     TLI.setUnavailable(LibFunc_statvfs);
335     TLI.setUnavailable(LibFunc_stpcpy);
336     TLI.setUnavailable(LibFunc_stpncpy);
337     TLI.setUnavailable(LibFunc_strcasecmp);
338     TLI.setUnavailable(LibFunc_strncasecmp);
339     TLI.setUnavailable(LibFunc_times);
340     TLI.setUnavailable(LibFunc_uname);
341     TLI.setUnavailable(LibFunc_unlink);
342     TLI.setUnavailable(LibFunc_unsetenv);
343     TLI.setUnavailable(LibFunc_utime);
344     TLI.setUnavailable(LibFunc_utimes);
345     TLI.setUnavailable(LibFunc_write);
346 
347     // Win32 does *not* provide provide these functions, but they are
348     // specified by C99:
349     TLI.setUnavailable(LibFunc_atoll);
350     TLI.setUnavailable(LibFunc_frexpf);
351     TLI.setUnavailable(LibFunc_llabs);
352   }
353 
354   switch (T.getOS()) {
355   case Triple::MacOSX:
356     // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
357     // and their names are __exp10 and __exp10f. exp10l is not available on
358     // OS X or iOS.
359     TLI.setUnavailable(LibFunc_exp10l);
360     if (T.isMacOSXVersionLT(10, 9)) {
361       TLI.setUnavailable(LibFunc_exp10);
362       TLI.setUnavailable(LibFunc_exp10f);
363     } else {
364       TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
365       TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
366     }
367     break;
368   case Triple::IOS:
369   case Triple::TvOS:
370   case Triple::WatchOS:
371     TLI.setUnavailable(LibFunc_exp10l);
372     if (!T.isWatchOS() && (T.isOSVersionLT(7, 0) ||
373                            (T.isOSVersionLT(9, 0) &&
374                             (T.getArch() == Triple::x86 ||
375                              T.getArch() == Triple::x86_64)))) {
376       TLI.setUnavailable(LibFunc_exp10);
377       TLI.setUnavailable(LibFunc_exp10f);
378     } else {
379       TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
380       TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
381     }
382     break;
383   case Triple::Linux:
384     // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
385     // buggy prior to glibc version 2.18. Until this version is widely deployed
386     // or we have a reasonable detection strategy, we cannot use exp10 reliably
387     // on Linux.
388     //
389     // Fall through to disable all of them.
390     LLVM_FALLTHROUGH;
391   default:
392     TLI.setUnavailable(LibFunc_exp10);
393     TLI.setUnavailable(LibFunc_exp10f);
394     TLI.setUnavailable(LibFunc_exp10l);
395   }
396 
397   // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
398   // Linux (GLIBC):
399   // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
400   // http://svn.freebsd.org/base/head/lib/libc/string/ffsl.c
401   // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
402   switch (T.getOS()) {
403   case Triple::Darwin:
404   case Triple::MacOSX:
405   case Triple::IOS:
406   case Triple::TvOS:
407   case Triple::WatchOS:
408   case Triple::FreeBSD:
409   case Triple::Linux:
410     break;
411   default:
412     TLI.setUnavailable(LibFunc_ffsl);
413   }
414 
415   // ffsll is available on at least FreeBSD and Linux (GLIBC):
416   // http://svn.freebsd.org/base/head/lib/libc/string/ffsll.c
417   // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
418   switch (T.getOS()) {
419   case Triple::Darwin:
420   case Triple::MacOSX:
421   case Triple::IOS:
422   case Triple::TvOS:
423   case Triple::WatchOS:
424   case Triple::FreeBSD:
425   case Triple::Linux:
426     break;
427   default:
428     TLI.setUnavailable(LibFunc_ffsll);
429   }
430 
431   // The following functions are available on at least FreeBSD:
432   // http://svn.freebsd.org/base/head/lib/libc/string/fls.c
433   // http://svn.freebsd.org/base/head/lib/libc/string/flsl.c
434   // http://svn.freebsd.org/base/head/lib/libc/string/flsll.c
435   if (!T.isOSFreeBSD()) {
436     TLI.setUnavailable(LibFunc_fls);
437     TLI.setUnavailable(LibFunc_flsl);
438     TLI.setUnavailable(LibFunc_flsll);
439   }
440 
441   // The following functions are available on at least Linux:
442   if (!T.isOSLinux()) {
443     TLI.setUnavailable(LibFunc_dunder_strdup);
444     TLI.setUnavailable(LibFunc_dunder_strtok_r);
445     TLI.setUnavailable(LibFunc_dunder_isoc99_scanf);
446     TLI.setUnavailable(LibFunc_dunder_isoc99_sscanf);
447     TLI.setUnavailable(LibFunc_under_IO_getc);
448     TLI.setUnavailable(LibFunc_under_IO_putc);
449     TLI.setUnavailable(LibFunc_memalign);
450     TLI.setUnavailable(LibFunc_fopen64);
451     TLI.setUnavailable(LibFunc_fseeko64);
452     TLI.setUnavailable(LibFunc_fstat64);
453     TLI.setUnavailable(LibFunc_fstatvfs64);
454     TLI.setUnavailable(LibFunc_ftello64);
455     TLI.setUnavailable(LibFunc_lstat64);
456     TLI.setUnavailable(LibFunc_open64);
457     TLI.setUnavailable(LibFunc_stat64);
458     TLI.setUnavailable(LibFunc_statvfs64);
459     TLI.setUnavailable(LibFunc_tmpfile64);
460   }
461 
462   // As currently implemented in clang, NVPTX code has no standard library to
463   // speak of.  Headers provide a standard-ish library implementation, but many
464   // of the signatures are wrong -- for example, many libm functions are not
465   // extern "C".
466   //
467   // libdevice, an IR library provided by nvidia, is linked in by the front-end,
468   // but only used functions are provided to llvm.  Moreover, most of the
469   // functions in libdevice don't map precisely to standard library functions.
470   //
471   // FIXME: Having no standard library prevents e.g. many fastmath
472   // optimizations, so this situation should be fixed.
473   if (T.isNVPTX()) {
474     TLI.disableAllFunctions();
475     TLI.setAvailable(LibFunc_nvvm_reflect);
476   } else {
477     TLI.setUnavailable(LibFunc_nvvm_reflect);
478   }
479 
480   TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary);
481 }
482 
483 TargetLibraryInfoImpl::TargetLibraryInfoImpl() {
484   // Default to everything being available.
485   memset(AvailableArray, -1, sizeof(AvailableArray));
486 
487   initialize(*this, Triple(), StandardNames);
488 }
489 
490 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const Triple &T) {
491   // Default to everything being available.
492   memset(AvailableArray, -1, sizeof(AvailableArray));
493 
494   initialize(*this, T, StandardNames);
495 }
496 
497 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const TargetLibraryInfoImpl &TLI)
498     : CustomNames(TLI.CustomNames), ShouldExtI32Param(TLI.ShouldExtI32Param),
499       ShouldExtI32Return(TLI.ShouldExtI32Return),
500       ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) {
501   memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
502   VectorDescs = TLI.VectorDescs;
503   ScalarDescs = TLI.ScalarDescs;
504 }
505 
506 TargetLibraryInfoImpl::TargetLibraryInfoImpl(TargetLibraryInfoImpl &&TLI)
507     : CustomNames(std::move(TLI.CustomNames)),
508       ShouldExtI32Param(TLI.ShouldExtI32Param),
509       ShouldExtI32Return(TLI.ShouldExtI32Return),
510       ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) {
511   std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
512             AvailableArray);
513   VectorDescs = TLI.VectorDescs;
514   ScalarDescs = TLI.ScalarDescs;
515 }
516 
517 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(const TargetLibraryInfoImpl &TLI) {
518   CustomNames = TLI.CustomNames;
519   ShouldExtI32Param = TLI.ShouldExtI32Param;
520   ShouldExtI32Return = TLI.ShouldExtI32Return;
521   ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
522   memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
523   return *this;
524 }
525 
526 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(TargetLibraryInfoImpl &&TLI) {
527   CustomNames = std::move(TLI.CustomNames);
528   ShouldExtI32Param = TLI.ShouldExtI32Param;
529   ShouldExtI32Return = TLI.ShouldExtI32Return;
530   ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
531   std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
532             AvailableArray);
533   return *this;
534 }
535 
536 static StringRef sanitizeFunctionName(StringRef funcName) {
537   // Filter out empty names and names containing null bytes, those can't be in
538   // our table.
539   if (funcName.empty() || funcName.find('\0') != StringRef::npos)
540     return StringRef();
541 
542   // Check for \01 prefix that is used to mangle __asm declarations and
543   // strip it if present.
544   return GlobalValue::dropLLVMManglingEscape(funcName);
545 }
546 
547 bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName,
548                                        LibFunc &F) const {
549   StringRef const *Start = &StandardNames[0];
550   StringRef const *End = &StandardNames[NumLibFuncs];
551 
552   funcName = sanitizeFunctionName(funcName);
553   if (funcName.empty())
554     return false;
555 
556   StringRef const *I = std::lower_bound(
557       Start, End, funcName, [](StringRef LHS, StringRef RHS) {
558         return LHS < RHS;
559       });
560   if (I != End && *I == funcName) {
561     F = (LibFunc)(I - Start);
562     return true;
563   }
564   return false;
565 }
566 
567 bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy,
568                                                    LibFunc F,
569                                                    const DataLayout *DL) const {
570   LLVMContext &Ctx = FTy.getContext();
571   Type *PCharTy = Type::getInt8PtrTy(Ctx);
572   Type *SizeTTy = DL ? DL->getIntPtrType(Ctx, /*AS=*/0) : nullptr;
573   auto IsSizeTTy = [SizeTTy](Type *Ty) {
574     return SizeTTy ? Ty == SizeTTy : Ty->isIntegerTy();
575   };
576   unsigned NumParams = FTy.getNumParams();
577 
578   switch (F) {
579   case LibFunc_strlen:
580     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() &&
581             FTy.getReturnType()->isIntegerTy());
582 
583   case LibFunc_strchr:
584   case LibFunc_strrchr:
585     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
586             FTy.getParamType(0) == FTy.getReturnType() &&
587             FTy.getParamType(1)->isIntegerTy());
588 
589   case LibFunc_strtol:
590   case LibFunc_strtod:
591   case LibFunc_strtof:
592   case LibFunc_strtoul:
593   case LibFunc_strtoll:
594   case LibFunc_strtold:
595   case LibFunc_strtoull:
596     return ((NumParams == 2 || NumParams == 3) &&
597             FTy.getParamType(0)->isPointerTy() &&
598             FTy.getParamType(1)->isPointerTy());
599   case LibFunc_strcat:
600     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
601             FTy.getParamType(0) == FTy.getReturnType() &&
602             FTy.getParamType(1) == FTy.getReturnType());
603 
604   case LibFunc_strncat:
605     return (NumParams == 3 && FTy.getReturnType()->isPointerTy() &&
606             FTy.getParamType(0) == FTy.getReturnType() &&
607             FTy.getParamType(1) == FTy.getReturnType() &&
608             FTy.getParamType(2)->isIntegerTy());
609 
610   case LibFunc_strcpy_chk:
611   case LibFunc_stpcpy_chk:
612     --NumParams;
613     if (!IsSizeTTy(FTy.getParamType(NumParams)))
614       return false;
615     LLVM_FALLTHROUGH;
616   case LibFunc_strcpy:
617   case LibFunc_stpcpy:
618     return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(0) &&
619             FTy.getParamType(0) == FTy.getParamType(1) &&
620             FTy.getParamType(0) == PCharTy);
621 
622   case LibFunc_strncpy_chk:
623   case LibFunc_stpncpy_chk:
624     --NumParams;
625     if (!IsSizeTTy(FTy.getParamType(NumParams)))
626       return false;
627     LLVM_FALLTHROUGH;
628   case LibFunc_strncpy:
629   case LibFunc_stpncpy:
630     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
631             FTy.getParamType(0) == FTy.getParamType(1) &&
632             FTy.getParamType(0) == PCharTy &&
633             FTy.getParamType(2)->isIntegerTy());
634 
635   case LibFunc_strxfrm:
636     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
637             FTy.getParamType(1)->isPointerTy());
638 
639   case LibFunc_strcmp:
640     return (NumParams == 2 && FTy.getReturnType()->isIntegerTy(32) &&
641             FTy.getParamType(0)->isPointerTy() &&
642             FTy.getParamType(0) == FTy.getParamType(1));
643 
644   case LibFunc_strncmp:
645     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
646             FTy.getParamType(0)->isPointerTy() &&
647             FTy.getParamType(0) == FTy.getParamType(1) &&
648             FTy.getParamType(2)->isIntegerTy());
649 
650   case LibFunc_strspn:
651   case LibFunc_strcspn:
652     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
653             FTy.getParamType(0) == FTy.getParamType(1) &&
654             FTy.getReturnType()->isIntegerTy());
655 
656   case LibFunc_strcoll:
657   case LibFunc_strcasecmp:
658   case LibFunc_strncasecmp:
659     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
660             FTy.getParamType(1)->isPointerTy());
661 
662   case LibFunc_strstr:
663     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
664             FTy.getParamType(0)->isPointerTy() &&
665             FTy.getParamType(1)->isPointerTy());
666 
667   case LibFunc_strpbrk:
668     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
669             FTy.getReturnType() == FTy.getParamType(0) &&
670             FTy.getParamType(0) == FTy.getParamType(1));
671 
672   case LibFunc_strtok:
673   case LibFunc_strtok_r:
674     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
675   case LibFunc_scanf:
676   case LibFunc_setbuf:
677   case LibFunc_setvbuf:
678     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
679   case LibFunc_strdup:
680   case LibFunc_strndup:
681     return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() &&
682             FTy.getParamType(0)->isPointerTy());
683   case LibFunc_sscanf:
684   case LibFunc_stat:
685   case LibFunc_statvfs:
686   case LibFunc_siprintf:
687   case LibFunc_sprintf:
688     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
689             FTy.getParamType(1)->isPointerTy());
690   case LibFunc_snprintf:
691     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
692             FTy.getParamType(2)->isPointerTy());
693   case LibFunc_setitimer:
694     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
695             FTy.getParamType(2)->isPointerTy());
696   case LibFunc_system:
697     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
698   case LibFunc_malloc:
699     return (NumParams == 1 && FTy.getReturnType()->isPointerTy());
700   case LibFunc_memcmp:
701     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
702             FTy.getParamType(0)->isPointerTy() &&
703             FTy.getParamType(1)->isPointerTy());
704 
705   case LibFunc_memchr:
706   case LibFunc_memrchr:
707     return (NumParams == 3 && FTy.getReturnType()->isPointerTy() &&
708             FTy.getReturnType() == FTy.getParamType(0) &&
709             FTy.getParamType(1)->isIntegerTy(32) &&
710             IsSizeTTy(FTy.getParamType(2)));
711   case LibFunc_modf:
712   case LibFunc_modff:
713   case LibFunc_modfl:
714     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
715 
716   case LibFunc_memcpy_chk:
717   case LibFunc_memmove_chk:
718     --NumParams;
719     if (!IsSizeTTy(FTy.getParamType(NumParams)))
720       return false;
721     LLVM_FALLTHROUGH;
722   case LibFunc_memcpy:
723   case LibFunc_mempcpy:
724   case LibFunc_memmove:
725     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
726             FTy.getParamType(0)->isPointerTy() &&
727             FTy.getParamType(1)->isPointerTy() &&
728             IsSizeTTy(FTy.getParamType(2)));
729 
730   case LibFunc_memset_chk:
731     --NumParams;
732     if (!IsSizeTTy(FTy.getParamType(NumParams)))
733       return false;
734     LLVM_FALLTHROUGH;
735   case LibFunc_memset:
736     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
737             FTy.getParamType(0)->isPointerTy() &&
738             FTy.getParamType(1)->isIntegerTy() &&
739             IsSizeTTy(FTy.getParamType(2)));
740 
741   case LibFunc_memccpy:
742     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
743   case LibFunc_memalign:
744     return (FTy.getReturnType()->isPointerTy());
745   case LibFunc_realloc:
746   case LibFunc_reallocf:
747     return (NumParams == 2 && FTy.getReturnType() == PCharTy &&
748             FTy.getParamType(0) == FTy.getReturnType() &&
749             IsSizeTTy(FTy.getParamType(1)));
750   case LibFunc_read:
751     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
752   case LibFunc_rewind:
753   case LibFunc_rmdir:
754   case LibFunc_remove:
755   case LibFunc_realpath:
756     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
757   case LibFunc_rename:
758     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
759             FTy.getParamType(1)->isPointerTy());
760   case LibFunc_readlink:
761     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
762             FTy.getParamType(1)->isPointerTy());
763   case LibFunc_write:
764     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
765   case LibFunc_bcopy:
766   case LibFunc_bcmp:
767     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
768             FTy.getParamType(1)->isPointerTy());
769   case LibFunc_bzero:
770     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
771   case LibFunc_calloc:
772     return (NumParams == 2 && FTy.getReturnType()->isPointerTy());
773 
774   case LibFunc_atof:
775   case LibFunc_atoi:
776   case LibFunc_atol:
777   case LibFunc_atoll:
778   case LibFunc_ferror:
779   case LibFunc_getenv:
780   case LibFunc_getpwnam:
781   case LibFunc_iprintf:
782   case LibFunc_pclose:
783   case LibFunc_perror:
784   case LibFunc_printf:
785   case LibFunc_puts:
786   case LibFunc_uname:
787   case LibFunc_under_IO_getc:
788   case LibFunc_unlink:
789   case LibFunc_unsetenv:
790     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
791 
792   case LibFunc_access:
793   case LibFunc_chmod:
794   case LibFunc_chown:
795   case LibFunc_clearerr:
796   case LibFunc_closedir:
797   case LibFunc_ctermid:
798   case LibFunc_fclose:
799   case LibFunc_feof:
800   case LibFunc_fflush:
801   case LibFunc_fgetc:
802   case LibFunc_fileno:
803   case LibFunc_flockfile:
804   case LibFunc_free:
805   case LibFunc_fseek:
806   case LibFunc_fseeko64:
807   case LibFunc_fseeko:
808   case LibFunc_fsetpos:
809   case LibFunc_ftell:
810   case LibFunc_ftello64:
811   case LibFunc_ftello:
812   case LibFunc_ftrylockfile:
813   case LibFunc_funlockfile:
814   case LibFunc_getc:
815   case LibFunc_getc_unlocked:
816   case LibFunc_getlogin_r:
817   case LibFunc_mkdir:
818   case LibFunc_mktime:
819   case LibFunc_times:
820     return (NumParams != 0 && FTy.getParamType(0)->isPointerTy());
821 
822   case LibFunc_fopen:
823     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
824             FTy.getParamType(0)->isPointerTy() &&
825             FTy.getParamType(1)->isPointerTy());
826   case LibFunc_fdopen:
827     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
828             FTy.getParamType(1)->isPointerTy());
829   case LibFunc_fputc:
830   case LibFunc_fstat:
831   case LibFunc_frexp:
832   case LibFunc_frexpf:
833   case LibFunc_frexpl:
834   case LibFunc_fstatvfs:
835     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
836   case LibFunc_fgets:
837     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
838             FTy.getParamType(2)->isPointerTy());
839   case LibFunc_fread:
840     return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() &&
841             FTy.getParamType(3)->isPointerTy());
842   case LibFunc_fwrite:
843     return (NumParams == 4 && FTy.getReturnType()->isIntegerTy() &&
844             FTy.getParamType(0)->isPointerTy() &&
845             FTy.getParamType(1)->isIntegerTy() &&
846             FTy.getParamType(2)->isIntegerTy() &&
847             FTy.getParamType(3)->isPointerTy());
848   case LibFunc_fputs:
849     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
850             FTy.getParamType(1)->isPointerTy());
851   case LibFunc_fscanf:
852   case LibFunc_fiprintf:
853   case LibFunc_fprintf:
854     return (NumParams >= 2 && FTy.getReturnType()->isIntegerTy() &&
855             FTy.getParamType(0)->isPointerTy() &&
856             FTy.getParamType(1)->isPointerTy());
857   case LibFunc_fgetpos:
858     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
859             FTy.getParamType(1)->isPointerTy());
860   case LibFunc_getchar:
861     return (NumParams == 0 && FTy.getReturnType()->isIntegerTy());
862   case LibFunc_gets:
863     return (NumParams == 1 && FTy.getParamType(0) == PCharTy);
864   case LibFunc_getitimer:
865     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
866   case LibFunc_ungetc:
867     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
868   case LibFunc_utime:
869   case LibFunc_utimes:
870     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
871             FTy.getParamType(1)->isPointerTy());
872   case LibFunc_putc:
873     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
874   case LibFunc_pread:
875   case LibFunc_pwrite:
876     return (NumParams == 4 && FTy.getParamType(1)->isPointerTy());
877   case LibFunc_popen:
878     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
879             FTy.getParamType(0)->isPointerTy() &&
880             FTy.getParamType(1)->isPointerTy());
881   case LibFunc_vscanf:
882     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
883   case LibFunc_vsscanf:
884     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
885             FTy.getParamType(2)->isPointerTy());
886   case LibFunc_vfscanf:
887     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
888             FTy.getParamType(2)->isPointerTy());
889   case LibFunc_valloc:
890     return (FTy.getReturnType()->isPointerTy());
891   case LibFunc_vprintf:
892     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
893   case LibFunc_vfprintf:
894   case LibFunc_vsprintf:
895     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
896             FTy.getParamType(1)->isPointerTy());
897   case LibFunc_vsnprintf:
898     return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() &&
899             FTy.getParamType(2)->isPointerTy());
900   case LibFunc_open:
901     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy());
902   case LibFunc_opendir:
903     return (NumParams == 1 && FTy.getReturnType()->isPointerTy() &&
904             FTy.getParamType(0)->isPointerTy());
905   case LibFunc_tmpfile:
906     return (FTy.getReturnType()->isPointerTy());
907   case LibFunc_htonl:
908   case LibFunc_ntohl:
909     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
910             FTy.getReturnType() == FTy.getParamType(0));
911   case LibFunc_htons:
912   case LibFunc_ntohs:
913     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(16) &&
914             FTy.getReturnType() == FTy.getParamType(0));
915   case LibFunc_lstat:
916     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
917             FTy.getParamType(1)->isPointerTy());
918   case LibFunc_lchown:
919     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy());
920   case LibFunc_qsort:
921     return (NumParams == 4 && FTy.getParamType(3)->isPointerTy());
922   case LibFunc_dunder_strdup:
923   case LibFunc_dunder_strndup:
924     return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() &&
925             FTy.getParamType(0)->isPointerTy());
926   case LibFunc_dunder_strtok_r:
927     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
928   case LibFunc_under_IO_putc:
929     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
930   case LibFunc_dunder_isoc99_scanf:
931     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
932   case LibFunc_stat64:
933   case LibFunc_lstat64:
934   case LibFunc_statvfs64:
935     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
936             FTy.getParamType(1)->isPointerTy());
937   case LibFunc_dunder_isoc99_sscanf:
938     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
939             FTy.getParamType(1)->isPointerTy());
940   case LibFunc_fopen64:
941     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
942             FTy.getParamType(0)->isPointerTy() &&
943             FTy.getParamType(1)->isPointerTy());
944   case LibFunc_tmpfile64:
945     return (FTy.getReturnType()->isPointerTy());
946   case LibFunc_fstat64:
947   case LibFunc_fstatvfs64:
948     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
949   case LibFunc_open64:
950     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy());
951   case LibFunc_gettimeofday:
952     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
953             FTy.getParamType(1)->isPointerTy());
954 
955   // new(unsigned int);
956   case LibFunc_Znwj:
957   // new(unsigned long);
958   case LibFunc_Znwm:
959   // new[](unsigned int);
960   case LibFunc_Znaj:
961   // new[](unsigned long);
962   case LibFunc_Znam:
963   // new(unsigned int);
964   case LibFunc_msvc_new_int:
965   // new(unsigned long long);
966   case LibFunc_msvc_new_longlong:
967   // new[](unsigned int);
968   case LibFunc_msvc_new_array_int:
969   // new[](unsigned long long);
970   case LibFunc_msvc_new_array_longlong:
971     return (NumParams == 1 && FTy.getReturnType()->isPointerTy());
972 
973   // new(unsigned int, nothrow);
974   case LibFunc_ZnwjRKSt9nothrow_t:
975   // new(unsigned long, nothrow);
976   case LibFunc_ZnwmRKSt9nothrow_t:
977   // new[](unsigned int, nothrow);
978   case LibFunc_ZnajRKSt9nothrow_t:
979   // new[](unsigned long, nothrow);
980   case LibFunc_ZnamRKSt9nothrow_t:
981   // new(unsigned int, nothrow);
982   case LibFunc_msvc_new_int_nothrow:
983   // new(unsigned long long, nothrow);
984   case LibFunc_msvc_new_longlong_nothrow:
985   // new[](unsigned int, nothrow);
986   case LibFunc_msvc_new_array_int_nothrow:
987   // new[](unsigned long long, nothrow);
988   case LibFunc_msvc_new_array_longlong_nothrow:
989     return (NumParams == 2 && FTy.getReturnType()->isPointerTy());
990 
991   // void operator delete[](void*);
992   case LibFunc_ZdaPv:
993   // void operator delete(void*);
994   case LibFunc_ZdlPv:
995   // void operator delete[](void*);
996   case LibFunc_msvc_delete_array_ptr32:
997   // void operator delete[](void*);
998   case LibFunc_msvc_delete_array_ptr64:
999   // void operator delete(void*);
1000   case LibFunc_msvc_delete_ptr32:
1001   // void operator delete(void*);
1002   case LibFunc_msvc_delete_ptr64:
1003     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
1004 
1005   // void operator delete[](void*, nothrow);
1006   case LibFunc_ZdaPvRKSt9nothrow_t:
1007   // void operator delete[](void*, unsigned int);
1008   case LibFunc_ZdaPvj:
1009   // void operator delete[](void*, unsigned long);
1010   case LibFunc_ZdaPvm:
1011   // void operator delete(void*, nothrow);
1012   case LibFunc_ZdlPvRKSt9nothrow_t:
1013   // void operator delete(void*, unsigned int);
1014   case LibFunc_ZdlPvj:
1015   // void operator delete(void*, unsigned long);
1016   case LibFunc_ZdlPvm:
1017   // void operator delete[](void*, unsigned int);
1018   case LibFunc_msvc_delete_array_ptr32_int:
1019   // void operator delete[](void*, nothrow);
1020   case LibFunc_msvc_delete_array_ptr32_nothrow:
1021   // void operator delete[](void*, unsigned long long);
1022   case LibFunc_msvc_delete_array_ptr64_longlong:
1023   // void operator delete[](void*, nothrow);
1024   case LibFunc_msvc_delete_array_ptr64_nothrow:
1025   // void operator delete(void*, unsigned int);
1026   case LibFunc_msvc_delete_ptr32_int:
1027   // void operator delete(void*, nothrow);
1028   case LibFunc_msvc_delete_ptr32_nothrow:
1029   // void operator delete(void*, unsigned long long);
1030   case LibFunc_msvc_delete_ptr64_longlong:
1031   // void operator delete(void*, nothrow);
1032   case LibFunc_msvc_delete_ptr64_nothrow:
1033     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
1034 
1035   case LibFunc_memset_pattern16:
1036     return (!FTy.isVarArg() && NumParams == 3 &&
1037             FTy.getParamType(0)->isPointerTy() &&
1038             FTy.getParamType(1)->isPointerTy() &&
1039             FTy.getParamType(2)->isIntegerTy());
1040 
1041   case LibFunc_cxa_guard_abort:
1042   case LibFunc_cxa_guard_acquire:
1043   case LibFunc_cxa_guard_release:
1044   case LibFunc_nvvm_reflect:
1045     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
1046 
1047   case LibFunc_sincospi_stret:
1048   case LibFunc_sincospif_stret:
1049     return (NumParams == 1 && FTy.getParamType(0)->isFloatingPointTy());
1050 
1051   case LibFunc_acos:
1052   case LibFunc_acos_finite:
1053   case LibFunc_acosf:
1054   case LibFunc_acosf_finite:
1055   case LibFunc_acosh:
1056   case LibFunc_acosh_finite:
1057   case LibFunc_acoshf:
1058   case LibFunc_acoshf_finite:
1059   case LibFunc_acoshl:
1060   case LibFunc_acoshl_finite:
1061   case LibFunc_acosl:
1062   case LibFunc_acosl_finite:
1063   case LibFunc_asin:
1064   case LibFunc_asin_finite:
1065   case LibFunc_asinf:
1066   case LibFunc_asinf_finite:
1067   case LibFunc_asinh:
1068   case LibFunc_asinhf:
1069   case LibFunc_asinhl:
1070   case LibFunc_asinl:
1071   case LibFunc_asinl_finite:
1072   case LibFunc_atan:
1073   case LibFunc_atanf:
1074   case LibFunc_atanh:
1075   case LibFunc_atanh_finite:
1076   case LibFunc_atanhf:
1077   case LibFunc_atanhf_finite:
1078   case LibFunc_atanhl:
1079   case LibFunc_atanhl_finite:
1080   case LibFunc_atanl:
1081   case LibFunc_cbrt:
1082   case LibFunc_cbrtf:
1083   case LibFunc_cbrtl:
1084   case LibFunc_ceil:
1085   case LibFunc_ceilf:
1086   case LibFunc_ceill:
1087   case LibFunc_cos:
1088   case LibFunc_cosf:
1089   case LibFunc_cosh:
1090   case LibFunc_cosh_finite:
1091   case LibFunc_coshf:
1092   case LibFunc_coshf_finite:
1093   case LibFunc_coshl:
1094   case LibFunc_coshl_finite:
1095   case LibFunc_cosl:
1096   case LibFunc_exp10:
1097   case LibFunc_exp10_finite:
1098   case LibFunc_exp10f:
1099   case LibFunc_exp10f_finite:
1100   case LibFunc_exp10l:
1101   case LibFunc_exp10l_finite:
1102   case LibFunc_exp2:
1103   case LibFunc_exp2_finite:
1104   case LibFunc_exp2f:
1105   case LibFunc_exp2f_finite:
1106   case LibFunc_exp2l:
1107   case LibFunc_exp2l_finite:
1108   case LibFunc_exp:
1109   case LibFunc_exp_finite:
1110   case LibFunc_expf:
1111   case LibFunc_expf_finite:
1112   case LibFunc_expl:
1113   case LibFunc_expl_finite:
1114   case LibFunc_expm1:
1115   case LibFunc_expm1f:
1116   case LibFunc_expm1l:
1117   case LibFunc_fabs:
1118   case LibFunc_fabsf:
1119   case LibFunc_fabsl:
1120   case LibFunc_floor:
1121   case LibFunc_floorf:
1122   case LibFunc_floorl:
1123   case LibFunc_log10:
1124   case LibFunc_log10_finite:
1125   case LibFunc_log10f:
1126   case LibFunc_log10f_finite:
1127   case LibFunc_log10l:
1128   case LibFunc_log10l_finite:
1129   case LibFunc_log1p:
1130   case LibFunc_log1pf:
1131   case LibFunc_log1pl:
1132   case LibFunc_log2:
1133   case LibFunc_log2_finite:
1134   case LibFunc_log2f:
1135   case LibFunc_log2f_finite:
1136   case LibFunc_log2l:
1137   case LibFunc_log2l_finite:
1138   case LibFunc_log:
1139   case LibFunc_log_finite:
1140   case LibFunc_logb:
1141   case LibFunc_logbf:
1142   case LibFunc_logbl:
1143   case LibFunc_logf:
1144   case LibFunc_logf_finite:
1145   case LibFunc_logl:
1146   case LibFunc_logl_finite:
1147   case LibFunc_nearbyint:
1148   case LibFunc_nearbyintf:
1149   case LibFunc_nearbyintl:
1150   case LibFunc_rint:
1151   case LibFunc_rintf:
1152   case LibFunc_rintl:
1153   case LibFunc_round:
1154   case LibFunc_roundf:
1155   case LibFunc_roundl:
1156   case LibFunc_sin:
1157   case LibFunc_sinf:
1158   case LibFunc_sinh:
1159   case LibFunc_sinh_finite:
1160   case LibFunc_sinhf:
1161   case LibFunc_sinhf_finite:
1162   case LibFunc_sinhl:
1163   case LibFunc_sinhl_finite:
1164   case LibFunc_sinl:
1165   case LibFunc_sqrt:
1166   case LibFunc_sqrt_finite:
1167   case LibFunc_sqrtf:
1168   case LibFunc_sqrtf_finite:
1169   case LibFunc_sqrtl:
1170   case LibFunc_sqrtl_finite:
1171   case LibFunc_tan:
1172   case LibFunc_tanf:
1173   case LibFunc_tanh:
1174   case LibFunc_tanhf:
1175   case LibFunc_tanhl:
1176   case LibFunc_tanl:
1177   case LibFunc_trunc:
1178   case LibFunc_truncf:
1179   case LibFunc_truncl:
1180     return (NumParams == 1 && FTy.getReturnType()->isFloatingPointTy() &&
1181             FTy.getReturnType() == FTy.getParamType(0));
1182 
1183   case LibFunc_atan2:
1184   case LibFunc_atan2_finite:
1185   case LibFunc_atan2f:
1186   case LibFunc_atan2f_finite:
1187   case LibFunc_atan2l:
1188   case LibFunc_atan2l_finite:
1189   case LibFunc_fmin:
1190   case LibFunc_fminf:
1191   case LibFunc_fminl:
1192   case LibFunc_fmax:
1193   case LibFunc_fmaxf:
1194   case LibFunc_fmaxl:
1195   case LibFunc_fmod:
1196   case LibFunc_fmodf:
1197   case LibFunc_fmodl:
1198   case LibFunc_copysign:
1199   case LibFunc_copysignf:
1200   case LibFunc_copysignl:
1201   case LibFunc_pow:
1202   case LibFunc_pow_finite:
1203   case LibFunc_powf:
1204   case LibFunc_powf_finite:
1205   case LibFunc_powl:
1206   case LibFunc_powl_finite:
1207     return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() &&
1208             FTy.getReturnType() == FTy.getParamType(0) &&
1209             FTy.getReturnType() == FTy.getParamType(1));
1210 
1211   case LibFunc_ldexp:
1212   case LibFunc_ldexpf:
1213   case LibFunc_ldexpl:
1214     return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() &&
1215             FTy.getReturnType() == FTy.getParamType(0) &&
1216             FTy.getParamType(1)->isIntegerTy(32));
1217 
1218   case LibFunc_ffs:
1219   case LibFunc_ffsl:
1220   case LibFunc_ffsll:
1221   case LibFunc_fls:
1222   case LibFunc_flsl:
1223   case LibFunc_flsll:
1224     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
1225             FTy.getParamType(0)->isIntegerTy());
1226 
1227   case LibFunc_isdigit:
1228   case LibFunc_isascii:
1229   case LibFunc_toascii:
1230   case LibFunc_putchar:
1231     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
1232             FTy.getReturnType() == FTy.getParamType(0));
1233 
1234   case LibFunc_abs:
1235   case LibFunc_labs:
1236   case LibFunc_llabs:
1237     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy() &&
1238             FTy.getReturnType() == FTy.getParamType(0));
1239 
1240   case LibFunc_cxa_atexit:
1241     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy() &&
1242             FTy.getParamType(0)->isPointerTy() &&
1243             FTy.getParamType(1)->isPointerTy() &&
1244             FTy.getParamType(2)->isPointerTy());
1245 
1246   case LibFunc_sinpi:
1247   case LibFunc_cospi:
1248     return (NumParams == 1 && FTy.getReturnType()->isDoubleTy() &&
1249             FTy.getReturnType() == FTy.getParamType(0));
1250 
1251   case LibFunc_sinpif:
1252   case LibFunc_cospif:
1253     return (NumParams == 1 && FTy.getReturnType()->isFloatTy() &&
1254             FTy.getReturnType() == FTy.getParamType(0));
1255 
1256   case LibFunc_strnlen:
1257     return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(1) &&
1258             FTy.getParamType(0) == PCharTy &&
1259             FTy.getParamType(1) == SizeTTy);
1260 
1261   case LibFunc_posix_memalign:
1262     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
1263             FTy.getParamType(0)->isPointerTy() &&
1264             FTy.getParamType(1) == SizeTTy && FTy.getParamType(2) == SizeTTy);
1265 
1266   case LibFunc_wcslen:
1267     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() &&
1268             FTy.getReturnType()->isIntegerTy());
1269 
1270   case LibFunc::NumLibFuncs:
1271     break;
1272   }
1273 
1274   llvm_unreachable("Invalid libfunc");
1275 }
1276 
1277 bool TargetLibraryInfoImpl::getLibFunc(const Function &FDecl,
1278                                        LibFunc &F) const {
1279   const DataLayout *DL =
1280       FDecl.getParent() ? &FDecl.getParent()->getDataLayout() : nullptr;
1281   return getLibFunc(FDecl.getName(), F) &&
1282          isValidProtoForLibFunc(*FDecl.getFunctionType(), F, DL);
1283 }
1284 
1285 void TargetLibraryInfoImpl::disableAllFunctions() {
1286   memset(AvailableArray, 0, sizeof(AvailableArray));
1287 }
1288 
1289 static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) {
1290   return LHS.ScalarFnName < RHS.ScalarFnName;
1291 }
1292 
1293 static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) {
1294   return LHS.VectorFnName < RHS.VectorFnName;
1295 }
1296 
1297 static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) {
1298   return LHS.ScalarFnName < S;
1299 }
1300 
1301 static bool compareWithVectorFnName(const VecDesc &LHS, StringRef S) {
1302   return LHS.VectorFnName < S;
1303 }
1304 
1305 void TargetLibraryInfoImpl::addVectorizableFunctions(ArrayRef<VecDesc> Fns) {
1306   VectorDescs.insert(VectorDescs.end(), Fns.begin(), Fns.end());
1307   std::sort(VectorDescs.begin(), VectorDescs.end(), compareByScalarFnName);
1308 
1309   ScalarDescs.insert(ScalarDescs.end(), Fns.begin(), Fns.end());
1310   std::sort(ScalarDescs.begin(), ScalarDescs.end(), compareByVectorFnName);
1311 }
1312 
1313 void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib(
1314     enum VectorLibrary VecLib) {
1315   switch (VecLib) {
1316   case Accelerate: {
1317     const VecDesc VecFuncs[] = {
1318         // Floating-Point Arithmetic and Auxiliary Functions
1319         {"ceilf", "vceilf", 4},
1320         {"fabsf", "vfabsf", 4},
1321         {"llvm.fabs.f32", "vfabsf", 4},
1322         {"floorf", "vfloorf", 4},
1323         {"sqrtf", "vsqrtf", 4},
1324         {"llvm.sqrt.f32", "vsqrtf", 4},
1325 
1326         // Exponential and Logarithmic Functions
1327         {"expf", "vexpf", 4},
1328         {"llvm.exp.f32", "vexpf", 4},
1329         {"expm1f", "vexpm1f", 4},
1330         {"logf", "vlogf", 4},
1331         {"llvm.log.f32", "vlogf", 4},
1332         {"log1pf", "vlog1pf", 4},
1333         {"log10f", "vlog10f", 4},
1334         {"llvm.log10.f32", "vlog10f", 4},
1335         {"logbf", "vlogbf", 4},
1336 
1337         // Trigonometric Functions
1338         {"sinf", "vsinf", 4},
1339         {"llvm.sin.f32", "vsinf", 4},
1340         {"cosf", "vcosf", 4},
1341         {"llvm.cos.f32", "vcosf", 4},
1342         {"tanf", "vtanf", 4},
1343         {"asinf", "vasinf", 4},
1344         {"acosf", "vacosf", 4},
1345         {"atanf", "vatanf", 4},
1346 
1347         // Hyperbolic Functions
1348         {"sinhf", "vsinhf", 4},
1349         {"coshf", "vcoshf", 4},
1350         {"tanhf", "vtanhf", 4},
1351         {"asinhf", "vasinhf", 4},
1352         {"acoshf", "vacoshf", 4},
1353         {"atanhf", "vatanhf", 4},
1354     };
1355     addVectorizableFunctions(VecFuncs);
1356     break;
1357   }
1358   case SVML: {
1359     const VecDesc VecFuncs[] = {
1360         {"sin", "__svml_sin2", 2},
1361         {"sin", "__svml_sin4", 4},
1362         {"sin", "__svml_sin8", 8},
1363 
1364         {"sinf", "__svml_sinf4", 4},
1365         {"sinf", "__svml_sinf8", 8},
1366         {"sinf", "__svml_sinf16", 16},
1367 
1368         {"cos", "__svml_cos2", 2},
1369         {"cos", "__svml_cos4", 4},
1370         {"cos", "__svml_cos8", 8},
1371 
1372         {"cosf", "__svml_cosf4", 4},
1373         {"cosf", "__svml_cosf8", 8},
1374         {"cosf", "__svml_cosf16", 16},
1375 
1376         {"pow", "__svml_pow2", 2},
1377         {"pow", "__svml_pow4", 4},
1378         {"pow", "__svml_pow8", 8},
1379 
1380         {"powf", "__svml_powf4", 4},
1381         {"powf", "__svml_powf8", 8},
1382         {"powf", "__svml_powf16", 16},
1383 
1384         { "__pow_finite", "__svml_pow2", 2 },
1385         { "__pow_finite", "__svml_pow4", 4 },
1386         { "__pow_finite", "__svml_pow8", 8 },
1387 
1388         { "__powf_finite", "__svml_powf4", 4 },
1389         { "__powf_finite", "__svml_powf8", 8 },
1390         { "__powf_finite", "__svml_powf16", 16 },
1391 
1392         {"llvm.pow.f64", "__svml_pow2", 2},
1393         {"llvm.pow.f64", "__svml_pow4", 4},
1394         {"llvm.pow.f64", "__svml_pow8", 8},
1395 
1396         {"llvm.pow.f32", "__svml_powf4", 4},
1397         {"llvm.pow.f32", "__svml_powf8", 8},
1398         {"llvm.pow.f32", "__svml_powf16", 16},
1399 
1400         {"exp", "__svml_exp2", 2},
1401         {"exp", "__svml_exp4", 4},
1402         {"exp", "__svml_exp8", 8},
1403 
1404         {"expf", "__svml_expf4", 4},
1405         {"expf", "__svml_expf8", 8},
1406         {"expf", "__svml_expf16", 16},
1407 
1408         { "__exp_finite", "__svml_exp2", 2 },
1409         { "__exp_finite", "__svml_exp4", 4 },
1410         { "__exp_finite", "__svml_exp8", 8 },
1411 
1412         { "__expf_finite", "__svml_expf4", 4 },
1413         { "__expf_finite", "__svml_expf8", 8 },
1414         { "__expf_finite", "__svml_expf16", 16 },
1415 
1416         {"llvm.exp.f64", "__svml_exp2", 2},
1417         {"llvm.exp.f64", "__svml_exp4", 4},
1418         {"llvm.exp.f64", "__svml_exp8", 8},
1419 
1420         {"llvm.exp.f32", "__svml_expf4", 4},
1421         {"llvm.exp.f32", "__svml_expf8", 8},
1422         {"llvm.exp.f32", "__svml_expf16", 16},
1423 
1424         {"log", "__svml_log2", 2},
1425         {"log", "__svml_log4", 4},
1426         {"log", "__svml_log8", 8},
1427 
1428         {"logf", "__svml_logf4", 4},
1429         {"logf", "__svml_logf8", 8},
1430         {"logf", "__svml_logf16", 16},
1431 
1432         { "__log_finite", "__svml_log2", 2 },
1433         { "__log_finite", "__svml_log4", 4 },
1434         { "__log_finite", "__svml_log8", 8 },
1435 
1436         { "__logf_finite", "__svml_logf4", 4 },
1437         { "__logf_finite", "__svml_logf8", 8 },
1438         { "__logf_finite", "__svml_logf16", 16 },
1439 
1440         {"llvm.log.f64", "__svml_log2", 2},
1441         {"llvm.log.f64", "__svml_log4", 4},
1442         {"llvm.log.f64", "__svml_log8", 8},
1443 
1444         {"llvm.log.f32", "__svml_logf4", 4},
1445         {"llvm.log.f32", "__svml_logf8", 8},
1446         {"llvm.log.f32", "__svml_logf16", 16},
1447     };
1448     addVectorizableFunctions(VecFuncs);
1449     break;
1450   }
1451   case NoLibrary:
1452     break;
1453   }
1454 }
1455 
1456 bool TargetLibraryInfoImpl::isFunctionVectorizable(StringRef funcName) const {
1457   funcName = sanitizeFunctionName(funcName);
1458   if (funcName.empty())
1459     return false;
1460 
1461   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1462       VectorDescs.begin(), VectorDescs.end(), funcName,
1463       compareWithScalarFnName);
1464   return I != VectorDescs.end() && StringRef(I->ScalarFnName) == funcName;
1465 }
1466 
1467 StringRef TargetLibraryInfoImpl::getVectorizedFunction(StringRef F,
1468                                                        unsigned VF) const {
1469   F = sanitizeFunctionName(F);
1470   if (F.empty())
1471     return F;
1472   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1473       VectorDescs.begin(), VectorDescs.end(), F, compareWithScalarFnName);
1474   while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == F) {
1475     if (I->VectorizationFactor == VF)
1476       return I->VectorFnName;
1477     ++I;
1478   }
1479   return StringRef();
1480 }
1481 
1482 StringRef TargetLibraryInfoImpl::getScalarizedFunction(StringRef F,
1483                                                        unsigned &VF) const {
1484   F = sanitizeFunctionName(F);
1485   if (F.empty())
1486     return F;
1487 
1488   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1489       ScalarDescs.begin(), ScalarDescs.end(), F, compareWithVectorFnName);
1490   if (I == VectorDescs.end() || StringRef(I->VectorFnName) != F)
1491     return StringRef();
1492   VF = I->VectorizationFactor;
1493   return I->ScalarFnName;
1494 }
1495 
1496 TargetLibraryInfo TargetLibraryAnalysis::run(Module &M,
1497                                              ModuleAnalysisManager &) {
1498   if (PresetInfoImpl)
1499     return TargetLibraryInfo(*PresetInfoImpl);
1500 
1501   return TargetLibraryInfo(lookupInfoImpl(Triple(M.getTargetTriple())));
1502 }
1503 
1504 TargetLibraryInfo TargetLibraryAnalysis::run(Function &F,
1505                                              FunctionAnalysisManager &) {
1506   if (PresetInfoImpl)
1507     return TargetLibraryInfo(*PresetInfoImpl);
1508 
1509   return TargetLibraryInfo(
1510       lookupInfoImpl(Triple(F.getParent()->getTargetTriple())));
1511 }
1512 
1513 TargetLibraryInfoImpl &TargetLibraryAnalysis::lookupInfoImpl(const Triple &T) {
1514   std::unique_ptr<TargetLibraryInfoImpl> &Impl =
1515       Impls[T.normalize()];
1516   if (!Impl)
1517     Impl.reset(new TargetLibraryInfoImpl(T));
1518 
1519   return *Impl;
1520 }
1521 
1522 unsigned TargetLibraryInfoImpl::getWCharSize(const Module &M) const {
1523   if (auto *ShortWChar = cast_or_null<ConstantAsMetadata>(
1524       M.getModuleFlag("wchar_size")))
1525     return cast<ConstantInt>(ShortWChar->getValue())->getZExtValue();
1526   return 0;
1527 }
1528 
1529 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass()
1530     : ImmutablePass(ID), TLIImpl(), TLI(TLIImpl) {
1531   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1532 }
1533 
1534 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(const Triple &T)
1535     : ImmutablePass(ID), TLIImpl(T), TLI(TLIImpl) {
1536   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1537 }
1538 
1539 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(
1540     const TargetLibraryInfoImpl &TLIImpl)
1541     : ImmutablePass(ID), TLIImpl(TLIImpl), TLI(this->TLIImpl) {
1542   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1543 }
1544 
1545 AnalysisKey TargetLibraryAnalysis::Key;
1546 
1547 // Register the basic pass.
1548 INITIALIZE_PASS(TargetLibraryInfoWrapperPass, "targetlibinfo",
1549                 "Target Library Information", false, true)
1550 char TargetLibraryInfoWrapperPass::ID = 0;
1551 
1552 void TargetLibraryInfoWrapperPass::anchor() {}
1553