lib/Analysis/TargetLibraryInfo.cpp

   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     // Win32 does not support long double
 165     TLI.setUnavailable(LibFunc_acosl);
 166     TLI.setUnavailable(LibFunc_asinl);
 167     TLI.setUnavailable(LibFunc_atanl);
 168     TLI.setUnavailable(LibFunc_atan2l);
 169     TLI.setUnavailable(LibFunc_ceill);
 170     TLI.setUnavailable(LibFunc_copysignl);
 171     TLI.setUnavailable(LibFunc_cosl);
 172     TLI.setUnavailable(LibFunc_coshl);
 173     TLI.setUnavailable(LibFunc_expl);
 174     TLI.setUnavailable(LibFunc_fabsf); // Win32 and Win64 both lack fabsf
 175     TLI.setUnavailable(LibFunc_fabsl);
 176     TLI.setUnavailable(LibFunc_floorl);
 177     TLI.setUnavailable(LibFunc_fmaxl);
 178     TLI.setUnavailable(LibFunc_fminl);
 179     TLI.setUnavailable(LibFunc_fmodl);
 180     TLI.setUnavailable(LibFunc_frexpl);
 181     TLI.setUnavailable(LibFunc_ldexpf);
 182     TLI.setUnavailable(LibFunc_ldexpl);
 183     TLI.setUnavailable(LibFunc_logl);
 184     TLI.setUnavailable(LibFunc_modfl);
 185     TLI.setUnavailable(LibFunc_powl);
 186     TLI.setUnavailable(LibFunc_sinl);
 187     TLI.setUnavailable(LibFunc_sinhl);
 188     TLI.setUnavailable(LibFunc_sqrtl);
 189     TLI.setUnavailable(LibFunc_tanl);
 190     TLI.setUnavailable(LibFunc_tanhl);
 191
 192     // Win32 only has C89 math
 193     TLI.setUnavailable(LibFunc_acosh);
 194     TLI.setUnavailable(LibFunc_acoshf);
 195     TLI.setUnavailable(LibFunc_acoshl);
 196     TLI.setUnavailable(LibFunc_asinh);
 197     TLI.setUnavailable(LibFunc_asinhf);
 198     TLI.setUnavailable(LibFunc_asinhl);
 199     TLI.setUnavailable(LibFunc_atanh);
 200     TLI.setUnavailable(LibFunc_atanhf);
 201     TLI.setUnavailable(LibFunc_atanhl);
 202     TLI.setUnavailable(LibFunc_cabs);
 203     TLI.setUnavailable(LibFunc_cabsf);
 204     TLI.setUnavailable(LibFunc_cabsl);
 205     TLI.setUnavailable(LibFunc_cbrt);
 206     TLI.setUnavailable(LibFunc_cbrtf);
 207     TLI.setUnavailable(LibFunc_cbrtl);
 208     TLI.setUnavailable(LibFunc_exp2);
 209     TLI.setUnavailable(LibFunc_exp2f);
 210     TLI.setUnavailable(LibFunc_exp2l);
 211     TLI.setUnavailable(LibFunc_expm1);
 212     TLI.setUnavailable(LibFunc_expm1f);
 213     TLI.setUnavailable(LibFunc_expm1l);
 214     TLI.setUnavailable(LibFunc_log2);
 215     TLI.setUnavailable(LibFunc_log2f);
 216     TLI.setUnavailable(LibFunc_log2l);
 217     TLI.setUnavailable(LibFunc_log1p);
 218     TLI.setUnavailable(LibFunc_log1pf);
 219     TLI.setUnavailable(LibFunc_log1pl);
 220     TLI.setUnavailable(LibFunc_logb);
 221     TLI.setUnavailable(LibFunc_logbf);
 222     TLI.setUnavailable(LibFunc_logbl);
 223     TLI.setUnavailable(LibFunc_nearbyint);
 224     TLI.setUnavailable(LibFunc_nearbyintf);
 225     TLI.setUnavailable(LibFunc_nearbyintl);
 226     TLI.setUnavailable(LibFunc_rint);
 227     TLI.setUnavailable(LibFunc_rintf);
 228     TLI.setUnavailable(LibFunc_rintl);
 229     TLI.setUnavailable(LibFunc_round);
 230     TLI.setUnavailable(LibFunc_roundf);
 231     TLI.setUnavailable(LibFunc_roundl);
 232     TLI.setUnavailable(LibFunc_trunc);
 233     TLI.setUnavailable(LibFunc_truncf);
 234     TLI.setUnavailable(LibFunc_truncl);
 235
 236     // Win32 provides some C99 math with mangled names
 237     TLI.setAvailableWithName(LibFunc_copysign, "_copysign");
 238
 239     if (T.getArch() == Triple::x86) {
 240       // Win32 on x86 implements single-precision math functions as macros
 241       TLI.setUnavailable(LibFunc_acosf);
 242       TLI.setUnavailable(LibFunc_asinf);
 243       TLI.setUnavailable(LibFunc_atanf);
 244       TLI.setUnavailable(LibFunc_atan2f);
 245       TLI.setUnavailable(LibFunc_ceilf);
 246       TLI.setUnavailable(LibFunc_copysignf);
 247       TLI.setUnavailable(LibFunc_cosf);
 248       TLI.setUnavailable(LibFunc_coshf);
 249       TLI.setUnavailable(LibFunc_expf);
 250       TLI.setUnavailable(LibFunc_floorf);
 251       TLI.setUnavailable(LibFunc_fminf);
 252       TLI.setUnavailable(LibFunc_fmaxf);
 253       TLI.setUnavailable(LibFunc_fmodf);
 254       TLI.setUnavailable(LibFunc_logf);
 255       TLI.setUnavailable(LibFunc_log10f);
 256       TLI.setUnavailable(LibFunc_modff);
 257       TLI.setUnavailable(LibFunc_powf);
 258       TLI.setUnavailable(LibFunc_sinf);
 259       TLI.setUnavailable(LibFunc_sinhf);
 260       TLI.setUnavailable(LibFunc_sqrtf);
 261       TLI.setUnavailable(LibFunc_tanf);
 262       TLI.setUnavailable(LibFunc_tanhf);
 263     }
 264
 265     // Win32 does *not* provide these functions, but they are
 266     // generally available on POSIX-compliant systems:
 267     TLI.setUnavailable(LibFunc_access);
 268     TLI.setUnavailable(LibFunc_bcmp);
 269     TLI.setUnavailable(LibFunc_bcopy);
 270     TLI.setUnavailable(LibFunc_bzero);
 271     TLI.setUnavailable(LibFunc_chmod);
 272     TLI.setUnavailable(LibFunc_chown);
 273     TLI.setUnavailable(LibFunc_closedir);
 274     TLI.setUnavailable(LibFunc_ctermid);
 275     TLI.setUnavailable(LibFunc_fdopen);
 276     TLI.setUnavailable(LibFunc_ffs);
 277     TLI.setUnavailable(LibFunc_fileno);
 278     TLI.setUnavailable(LibFunc_flockfile);
 279     TLI.setUnavailable(LibFunc_fseeko);
 280     TLI.setUnavailable(LibFunc_fstat);
 281     TLI.setUnavailable(LibFunc_fstatvfs);
 282     TLI.setUnavailable(LibFunc_ftello);
 283     TLI.setUnavailable(LibFunc_ftrylockfile);
 284     TLI.setUnavailable(LibFunc_funlockfile);
 285     TLI.setUnavailable(LibFunc_getitimer);
 286     TLI.setUnavailable(LibFunc_getlogin_r);
 287     TLI.setUnavailable(LibFunc_getpwnam);
 288     TLI.setUnavailable(LibFunc_gettimeofday);
 289     TLI.setUnavailable(LibFunc_htonl);
 290     TLI.setUnavailable(LibFunc_htons);
 291     TLI.setUnavailable(LibFunc_lchown);
 292     TLI.setUnavailable(LibFunc_lstat);
 293     TLI.setUnavailable(LibFunc_memccpy);
 294     TLI.setUnavailable(LibFunc_mkdir);
 295     TLI.setUnavailable(LibFunc_ntohl);
 296     TLI.setUnavailable(LibFunc_ntohs);
 297     TLI.setUnavailable(LibFunc_open);
 298     TLI.setUnavailable(LibFunc_opendir);
 299     TLI.setUnavailable(LibFunc_pclose);
 300     TLI.setUnavailable(LibFunc_popen);
 301     TLI.setUnavailable(LibFunc_pread);
 302     TLI.setUnavailable(LibFunc_pwrite);
 303     TLI.setUnavailable(LibFunc_read);
 304     TLI.setUnavailable(LibFunc_readlink);
 305     TLI.setUnavailable(LibFunc_realpath);
 306     TLI.setUnavailable(LibFunc_rmdir);
 307     TLI.setUnavailable(LibFunc_setitimer);
 308     TLI.setUnavailable(LibFunc_stat);
 309     TLI.setUnavailable(LibFunc_statvfs);
 310     TLI.setUnavailable(LibFunc_stpcpy);
 311     TLI.setUnavailable(LibFunc_stpncpy);
 312     TLI.setUnavailable(LibFunc_strcasecmp);
 313     TLI.setUnavailable(LibFunc_strncasecmp);
 314     TLI.setUnavailable(LibFunc_times);
 315     TLI.setUnavailable(LibFunc_uname);
 316     TLI.setUnavailable(LibFunc_unlink);
 317     TLI.setUnavailable(LibFunc_unsetenv);
 318     TLI.setUnavailable(LibFunc_utime);
 319     TLI.setUnavailable(LibFunc_utimes);
 320     TLI.setUnavailable(LibFunc_write);
 321
 322     // Win32 does *not* provide provide these functions, but they are
 323     // specified by C99:
 324     TLI.setUnavailable(LibFunc_atoll);
 325     TLI.setUnavailable(LibFunc_frexpf);
 326     TLI.setUnavailable(LibFunc_llabs);
 327   }
 328
 329   switch (T.getOS()) {
 330   case Triple::MacOSX:
 331     // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
 332     // and their names are __exp10 and __exp10f. exp10l is not available on
 333     // OS X or iOS.
 334     TLI.setUnavailable(LibFunc_exp10l);
 335     if (T.isMacOSXVersionLT(10, 9)) {
 336       TLI.setUnavailable(LibFunc_exp10);
 337       TLI.setUnavailable(LibFunc_exp10f);
 338     } else {
 339       TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
 340       TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
 341     }
 342     break;
 343   case Triple::IOS:
 344   case Triple::TvOS:
 345   case Triple::WatchOS:
 346     TLI.setUnavailable(LibFunc_exp10l);
 347     if (!T.isWatchOS() && (T.isOSVersionLT(7, 0) ||
 348                            (T.isOSVersionLT(9, 0) &&
 349                             (T.getArch() == Triple::x86 ||
 350                              T.getArch() == Triple::x86_64)))) {
 351       TLI.setUnavailable(LibFunc_exp10);
 352       TLI.setUnavailable(LibFunc_exp10f);
 353     } else {
 354       TLI.setAvailableWithName(LibFunc_exp10, "__exp10");
 355       TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f");
 356     }
 357     break;
 358   case Triple::Linux:
 359     // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
 360     // buggy prior to glibc version 2.18. Until this version is widely deployed
 361     // or we have a reasonable detection strategy, we cannot use exp10 reliably
 362     // on Linux.
 363     //
 364     // Fall through to disable all of them.
 365     LLVM_FALLTHROUGH;
 366   default:
 367     TLI.setUnavailable(LibFunc_exp10);
 368     TLI.setUnavailable(LibFunc_exp10f);
 369     TLI.setUnavailable(LibFunc_exp10l);
 370   }
 371
 372   // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
 373   // Linux (GLIBC):
 374   // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
 375   // http://svn.freebsd.org/base/head/lib/libc/string/ffsl.c
 376   // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
 377   switch (T.getOS()) {
 378   case Triple::Darwin:
 379   case Triple::MacOSX:
 380   case Triple::IOS:
 381   case Triple::TvOS:
 382   case Triple::WatchOS:
 383   case Triple::FreeBSD:
 384   case Triple::Linux:
 385     break;
 386   default:
 387     TLI.setUnavailable(LibFunc_ffsl);
 388   }
 389
 390   // ffsll is available on at least FreeBSD and Linux (GLIBC):
 391   // http://svn.freebsd.org/base/head/lib/libc/string/ffsll.c
 392   // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
 393   switch (T.getOS()) {
 394   case Triple::Darwin:
 395   case Triple::MacOSX:
 396   case Triple::IOS:
 397   case Triple::TvOS:
 398   case Triple::WatchOS:
 399   case Triple::FreeBSD:
 400   case Triple::Linux:
 401     break;
 402   default:
 403     TLI.setUnavailable(LibFunc_ffsll);
 404   }
 405
 406   // The following functions are available on at least FreeBSD:
 407   // http://svn.freebsd.org/base/head/lib/libc/string/fls.c
 408   // http://svn.freebsd.org/base/head/lib/libc/string/flsl.c
 409   // http://svn.freebsd.org/base/head/lib/libc/string/flsll.c
 410   if (!T.isOSFreeBSD()) {
 411     TLI.setUnavailable(LibFunc_fls);
 412     TLI.setUnavailable(LibFunc_flsl);
 413     TLI.setUnavailable(LibFunc_flsll);
 414   }
 415
 416   // The following functions are available on Linux,
 417   // but Android uses bionic instead of glibc.
 418   if (!T.isOSLinux() || T.isAndroid()) {
 419     TLI.setUnavailable(LibFunc_dunder_strdup);
 420     TLI.setUnavailable(LibFunc_dunder_strtok_r);
 421     TLI.setUnavailable(LibFunc_dunder_isoc99_scanf);
 422     TLI.setUnavailable(LibFunc_dunder_isoc99_sscanf);
 423     TLI.setUnavailable(LibFunc_under_IO_getc);
 424     TLI.setUnavailable(LibFunc_under_IO_putc);
 425     // But, Android has memalign.
 426     if (!T.isAndroid())
 427       TLI.setUnavailable(LibFunc_memalign);
 428     TLI.setUnavailable(LibFunc_fopen64);
 429     TLI.setUnavailable(LibFunc_fseeko64);
 430     TLI.setUnavailable(LibFunc_fstat64);
 431     TLI.setUnavailable(LibFunc_fstatvfs64);
 432     TLI.setUnavailable(LibFunc_ftello64);
 433     TLI.setUnavailable(LibFunc_lstat64);
 434     TLI.setUnavailable(LibFunc_open64);
 435     TLI.setUnavailable(LibFunc_stat64);
 436     TLI.setUnavailable(LibFunc_statvfs64);
 437     TLI.setUnavailable(LibFunc_tmpfile64);
 438
 439     // Relaxed math functions are included in math-finite.h on Linux (GLIBC).
 440     TLI.setUnavailable(LibFunc_acos_finite);
 441     TLI.setUnavailable(LibFunc_acosf_finite);
 442     TLI.setUnavailable(LibFunc_acosl_finite);
 443     TLI.setUnavailable(LibFunc_acosh_finite);
 444     TLI.setUnavailable(LibFunc_acoshf_finite);
 445     TLI.setUnavailable(LibFunc_acoshl_finite);
 446     TLI.setUnavailable(LibFunc_asin_finite);
 447     TLI.setUnavailable(LibFunc_asinf_finite);
 448     TLI.setUnavailable(LibFunc_asinl_finite);
 449     TLI.setUnavailable(LibFunc_atan2_finite);
 450     TLI.setUnavailable(LibFunc_atan2f_finite);
 451     TLI.setUnavailable(LibFunc_atan2l_finite);
 452     TLI.setUnavailable(LibFunc_atanh_finite);
 453     TLI.setUnavailable(LibFunc_atanhf_finite);
 454     TLI.setUnavailable(LibFunc_atanhl_finite);
 455     TLI.setUnavailable(LibFunc_cosh_finite);
 456     TLI.setUnavailable(LibFunc_coshf_finite);
 457     TLI.setUnavailable(LibFunc_coshl_finite);
 458     TLI.setUnavailable(LibFunc_exp10_finite);
 459     TLI.setUnavailable(LibFunc_exp10f_finite);
 460     TLI.setUnavailable(LibFunc_exp10l_finite);
 461     TLI.setUnavailable(LibFunc_exp2_finite);
 462     TLI.setUnavailable(LibFunc_exp2f_finite);
 463     TLI.setUnavailable(LibFunc_exp2l_finite);
 464     TLI.setUnavailable(LibFunc_exp_finite);
 465     TLI.setUnavailable(LibFunc_expf_finite);
 466     TLI.setUnavailable(LibFunc_expl_finite);
 467     TLI.setUnavailable(LibFunc_log10_finite);
 468     TLI.setUnavailable(LibFunc_log10f_finite);
 469     TLI.setUnavailable(LibFunc_log10l_finite);
 470     TLI.setUnavailable(LibFunc_log2_finite);
 471     TLI.setUnavailable(LibFunc_log2f_finite);
 472     TLI.setUnavailable(LibFunc_log2l_finite);
 473     TLI.setUnavailable(LibFunc_log_finite);
 474     TLI.setUnavailable(LibFunc_logf_finite);
 475     TLI.setUnavailable(LibFunc_logl_finite);
 476     TLI.setUnavailable(LibFunc_pow_finite);
 477     TLI.setUnavailable(LibFunc_powf_finite);
 478     TLI.setUnavailable(LibFunc_powl_finite);
 479     TLI.setUnavailable(LibFunc_sinh_finite);
 480     TLI.setUnavailable(LibFunc_sinhf_finite);
 481     TLI.setUnavailable(LibFunc_sinhl_finite);
 482   }
 483
 484   if ((T.isOSLinux() && T.isGNUEnvironment()) ||
 485       (T.isAndroid() && !T.isAndroidVersionLT(28))) {
 486     // available IO unlocked variants on GNU/Linux and Android P or later
 487     TLI.setAvailable(LibFunc_getc_unlocked);
 488     TLI.setAvailable(LibFunc_getchar_unlocked);
 489     TLI.setAvailable(LibFunc_putc_unlocked);
 490     TLI.setAvailable(LibFunc_putchar_unlocked);
 491     TLI.setAvailable(LibFunc_fputc_unlocked);
 492     TLI.setAvailable(LibFunc_fgetc_unlocked);
 493     TLI.setAvailable(LibFunc_fread_unlocked);
 494     TLI.setAvailable(LibFunc_fwrite_unlocked);
 495     TLI.setAvailable(LibFunc_fputs_unlocked);
 496     TLI.setAvailable(LibFunc_fgets_unlocked);
 497   }
 498
 499   // As currently implemented in clang, NVPTX code has no standard library to
 500   // speak of.  Headers provide a standard-ish library implementation, but many
 501   // of the signatures are wrong -- for example, many libm functions are not
 502   // extern "C".
 503   //
 504   // libdevice, an IR library provided by nvidia, is linked in by the front-end,
 505   // but only used functions are provided to llvm.  Moreover, most of the
 506   // functions in libdevice don't map precisely to standard library functions.
 507   //
 508   // FIXME: Having no standard library prevents e.g. many fastmath
 509   // optimizations, so this situation should be fixed.
 510   if (T.isNVPTX()) {
 511     TLI.disableAllFunctions();
 512     TLI.setAvailable(LibFunc_nvvm_reflect);
 513   } else {
 514     TLI.setUnavailable(LibFunc_nvvm_reflect);
 515   }
 516
 517   TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary);
 518 }
 519
 520 TargetLibraryInfoImpl::TargetLibraryInfoImpl() {
 521   // Default to everything being available.
 522   memset(AvailableArray, -1, sizeof(AvailableArray));
 523
 524   initialize(*this, Triple(), StandardNames);
 525 }
 526
 527 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const Triple &T) {
 528   // Default to everything being available.
 529   memset(AvailableArray, -1, sizeof(AvailableArray));
 530
 531   initialize(*this, T, StandardNames);
 532 }
 533
 534 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const TargetLibraryInfoImpl &TLI)
 535     : CustomNames(TLI.CustomNames), ShouldExtI32Param(TLI.ShouldExtI32Param),
 536       ShouldExtI32Return(TLI.ShouldExtI32Return),
 537       ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) {
 538   memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
 539   VectorDescs = TLI.VectorDescs;
 540   ScalarDescs = TLI.ScalarDescs;
 541 }
 542
 543 TargetLibraryInfoImpl::TargetLibraryInfoImpl(TargetLibraryInfoImpl &&TLI)
 544     : CustomNames(std::move(TLI.CustomNames)),
 545       ShouldExtI32Param(TLI.ShouldExtI32Param),
 546       ShouldExtI32Return(TLI.ShouldExtI32Return),
 547       ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) {
 548   std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray),
 549             AvailableArray);
 550   VectorDescs = TLI.VectorDescs;
 551   ScalarDescs = TLI.ScalarDescs;
 552 }
 553
 554 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(const TargetLibraryInfoImpl &TLI) {
 555   CustomNames = TLI.CustomNames;
 556   ShouldExtI32Param = TLI.ShouldExtI32Param;
 557   ShouldExtI32Return = TLI.ShouldExtI32Return;
 558   ShouldSignExtI32Param = TLI.ShouldSignExtI32Param;
 559   memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
 560   return *this;
 561 }
 562
 563 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(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   return *this;
 571 }
 572
 573 static StringRef sanitizeFunctionName(StringRef funcName) {
 574   // Filter out empty names and names containing null bytes, those can't be in
 575   // our table.
 576   if (funcName.empty() || funcName.find('\0') != StringRef::npos)
 577     return StringRef();
 578
 579   // Check for \01 prefix that is used to mangle __asm declarations and
 580   // strip it if present.
 581   return GlobalValue::dropLLVMManglingEscape(funcName);
 582 }
 583
 584 bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName,
 585                                        LibFunc &F) const {
 586   StringRef const *Start = &StandardNames[0];
 587   StringRef const *End = &StandardNames[NumLibFuncs];
 588
 589   funcName = sanitizeFunctionName(funcName);
 590   if (funcName.empty())
 591     return false;
 592
 593   StringRef const *I = std::lower_bound(
 594       Start, End, funcName, [](StringRef LHS, StringRef RHS) {
 595         return LHS < RHS;
 596       });
 597   if (I != End && *I == funcName) {
 598     F = (LibFunc)(I - Start);
 599     return true;
 600   }
 601   return false;
 602 }
 603
 604 bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy,
 605                                                    LibFunc F,
 606                                                    const DataLayout *DL) const {
 607   LLVMContext &Ctx = FTy.getContext();
 608   Type *PCharTy = Type::getInt8PtrTy(Ctx);
 609   Type *SizeTTy = DL ? DL->getIntPtrType(Ctx, /*AS=*/0) : nullptr;
 610   auto IsSizeTTy = [SizeTTy](Type *Ty) {
 611     return SizeTTy ? Ty == SizeTTy : Ty->isIntegerTy();
 612   };
 613   unsigned NumParams = FTy.getNumParams();
 614
 615   switch (F) {
 616   case LibFunc_strlen:
 617     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() &&
 618             FTy.getReturnType()->isIntegerTy());
 619
 620   case LibFunc_strchr:
 621   case LibFunc_strrchr:
 622     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
 623             FTy.getParamType(0) == FTy.getReturnType() &&
 624             FTy.getParamType(1)->isIntegerTy());
 625
 626   case LibFunc_strtol:
 627   case LibFunc_strtod:
 628   case LibFunc_strtof:
 629   case LibFunc_strtoul:
 630   case LibFunc_strtoll:
 631   case LibFunc_strtold:
 632   case LibFunc_strtoull:
 633     return ((NumParams == 2 || NumParams == 3) &&
 634             FTy.getParamType(0)->isPointerTy() &&
 635             FTy.getParamType(1)->isPointerTy());
 636   case LibFunc_strcat:
 637     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
 638             FTy.getParamType(0) == FTy.getReturnType() &&
 639             FTy.getParamType(1) == FTy.getReturnType());
 640
 641   case LibFunc_strncat:
 642     return (NumParams == 3 && FTy.getReturnType()->isPointerTy() &&
 643             FTy.getParamType(0) == FTy.getReturnType() &&
 644             FTy.getParamType(1) == FTy.getReturnType() &&
 645             IsSizeTTy(FTy.getParamType(2)));
 646
 647   case LibFunc_strcpy_chk:
 648   case LibFunc_stpcpy_chk:
 649     --NumParams;
 650     if (!IsSizeTTy(FTy.getParamType(NumParams)))
 651       return false;
 652     LLVM_FALLTHROUGH;
 653   case LibFunc_strcpy:
 654   case LibFunc_stpcpy:
 655     return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(0) &&
 656             FTy.getParamType(0) == FTy.getParamType(1) &&
 657             FTy.getParamType(0) == PCharTy);
 658
 659   case LibFunc_strncpy_chk:
 660   case LibFunc_stpncpy_chk:
 661     --NumParams;
 662     if (!IsSizeTTy(FTy.getParamType(NumParams)))
 663       return false;
 664     LLVM_FALLTHROUGH;
 665   case LibFunc_strncpy:
 666   case LibFunc_stpncpy:
 667     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
 668             FTy.getParamType(0) == FTy.getParamType(1) &&
 669             FTy.getParamType(0) == PCharTy &&
 670             IsSizeTTy(FTy.getParamType(2)));
 671
 672   case LibFunc_strxfrm:
 673     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
 674             FTy.getParamType(1)->isPointerTy());
 675
 676   case LibFunc_strcmp:
 677     return (NumParams == 2 && FTy.getReturnType()->isIntegerTy(32) &&
 678             FTy.getParamType(0)->isPointerTy() &&
 679             FTy.getParamType(0) == FTy.getParamType(1));
 680
 681   case LibFunc_strncmp:
 682     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
 683             FTy.getParamType(0)->isPointerTy() &&
 684             FTy.getParamType(0) == FTy.getParamType(1) &&
 685             IsSizeTTy(FTy.getParamType(2)));
 686
 687   case LibFunc_strspn:
 688   case LibFunc_strcspn:
 689     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
 690             FTy.getParamType(0) == FTy.getParamType(1) &&
 691             FTy.getReturnType()->isIntegerTy());
 692
 693   case LibFunc_strcoll:
 694   case LibFunc_strcasecmp:
 695   case LibFunc_strncasecmp:
 696     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
 697             FTy.getParamType(1)->isPointerTy());
 698
 699   case LibFunc_strstr:
 700     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
 701             FTy.getParamType(0)->isPointerTy() &&
 702             FTy.getParamType(1)->isPointerTy());
 703
 704   case LibFunc_strpbrk:
 705     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
 706             FTy.getReturnType() == FTy.getParamType(0) &&
 707             FTy.getParamType(0) == FTy.getParamType(1));
 708
 709   case LibFunc_strtok:
 710   case LibFunc_strtok_r:
 711     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
 712   case LibFunc_scanf:
 713   case LibFunc_setbuf:
 714   case LibFunc_setvbuf:
 715     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
 716   case LibFunc_strdup:
 717   case LibFunc_strndup:
 718     return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() &&
 719             FTy.getParamType(0)->isPointerTy());
 720   case LibFunc_sscanf:
 721   case LibFunc_stat:
 722   case LibFunc_statvfs:
 723   case LibFunc_siprintf:
 724   case LibFunc_sprintf:
 725     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
 726             FTy.getParamType(1)->isPointerTy() &&
 727             FTy.getReturnType()->isIntegerTy(32));
 728   case LibFunc_snprintf:
 729     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
 730             FTy.getParamType(2)->isPointerTy() &&
 731             FTy.getReturnType()->isIntegerTy(32));
 732   case LibFunc_setitimer:
 733     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
 734             FTy.getParamType(2)->isPointerTy());
 735   case LibFunc_system:
 736     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
 737   case LibFunc_malloc:
 738     return (NumParams == 1 && FTy.getReturnType()->isPointerTy());
 739   case LibFunc_memcmp:
 740     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
 741             FTy.getParamType(0)->isPointerTy() &&
 742             FTy.getParamType(1)->isPointerTy());
 743
 744   case LibFunc_memchr:
 745   case LibFunc_memrchr:
 746     return (NumParams == 3 && FTy.getReturnType()->isPointerTy() &&
 747             FTy.getReturnType() == FTy.getParamType(0) &&
 748             FTy.getParamType(1)->isIntegerTy(32) &&
 749             IsSizeTTy(FTy.getParamType(2)));
 750   case LibFunc_modf:
 751   case LibFunc_modff:
 752   case LibFunc_modfl:
 753     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
 754
 755   case LibFunc_memcpy_chk:
 756   case LibFunc_memmove_chk:
 757     --NumParams;
 758     if (!IsSizeTTy(FTy.getParamType(NumParams)))
 759       return false;
 760     LLVM_FALLTHROUGH;
 761   case LibFunc_memcpy:
 762   case LibFunc_mempcpy:
 763   case LibFunc_memmove:
 764     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
 765             FTy.getParamType(0)->isPointerTy() &&
 766             FTy.getParamType(1)->isPointerTy() &&
 767             IsSizeTTy(FTy.getParamType(2)));
 768
 769   case LibFunc_memset_chk:
 770     --NumParams;
 771     if (!IsSizeTTy(FTy.getParamType(NumParams)))
 772       return false;
 773     LLVM_FALLTHROUGH;
 774   case LibFunc_memset:
 775     return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) &&
 776             FTy.getParamType(0)->isPointerTy() &&
 777             FTy.getParamType(1)->isIntegerTy() &&
 778             IsSizeTTy(FTy.getParamType(2)));
 779
 780   case LibFunc_memccpy:
 781     return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy());
 782   case LibFunc_memalign:
 783     return (FTy.getReturnType()->isPointerTy());
 784   case LibFunc_realloc:
 785   case LibFunc_reallocf:
 786     return (NumParams == 2 && FTy.getReturnType() == PCharTy &&
 787             FTy.getParamType(0) == FTy.getReturnType() &&
 788             IsSizeTTy(FTy.getParamType(1)));
 789   case LibFunc_read:
 790     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
 791   case LibFunc_rewind:
 792   case LibFunc_rmdir:
 793   case LibFunc_remove:
 794   case LibFunc_realpath:
 795     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
 796   case LibFunc_rename:
 797     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
 798             FTy.getParamType(1)->isPointerTy());
 799   case LibFunc_readlink:
 800     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
 801             FTy.getParamType(1)->isPointerTy());
 802   case LibFunc_write:
 803     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
 804   case LibFunc_bcopy:
 805   case LibFunc_bcmp:
 806     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
 807             FTy.getParamType(1)->isPointerTy());
 808   case LibFunc_bzero:
 809     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
 810   case LibFunc_calloc:
 811     return (NumParams == 2 && FTy.getReturnType()->isPointerTy());
 812
 813   case LibFunc_atof:
 814   case LibFunc_atoi:
 815   case LibFunc_atol:
 816   case LibFunc_atoll:
 817   case LibFunc_ferror:
 818   case LibFunc_getenv:
 819   case LibFunc_getpwnam:
 820   case LibFunc_iprintf:
 821   case LibFunc_pclose:
 822   case LibFunc_perror:
 823   case LibFunc_printf:
 824   case LibFunc_puts:
 825   case LibFunc_uname:
 826   case LibFunc_under_IO_getc:
 827   case LibFunc_unlink:
 828   case LibFunc_unsetenv:
 829     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
 830
 831   case LibFunc_access:
 832   case LibFunc_chmod:
 833   case LibFunc_chown:
 834   case LibFunc_clearerr:
 835   case LibFunc_closedir:
 836   case LibFunc_ctermid:
 837   case LibFunc_fclose:
 838   case LibFunc_feof:
 839   case LibFunc_fflush:
 840   case LibFunc_fgetc:
 841   case LibFunc_fgetc_unlocked:
 842   case LibFunc_fileno:
 843   case LibFunc_flockfile:
 844   case LibFunc_free:
 845   case LibFunc_fseek:
 846   case LibFunc_fseeko64:
 847   case LibFunc_fseeko:
 848   case LibFunc_fsetpos:
 849   case LibFunc_ftell:
 850   case LibFunc_ftello64:
 851   case LibFunc_ftello:
 852   case LibFunc_ftrylockfile:
 853   case LibFunc_funlockfile:
 854   case LibFunc_getc:
 855   case LibFunc_getc_unlocked:
 856   case LibFunc_getlogin_r:
 857   case LibFunc_mkdir:
 858   case LibFunc_mktime:
 859   case LibFunc_times:
 860     return (NumParams != 0 && FTy.getParamType(0)->isPointerTy());
 861
 862   case LibFunc_fopen:
 863     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
 864             FTy.getParamType(0)->isPointerTy() &&
 865             FTy.getParamType(1)->isPointerTy());
 866   case LibFunc_fdopen:
 867     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
 868             FTy.getParamType(1)->isPointerTy());
 869   case LibFunc_fputc:
 870   case LibFunc_fputc_unlocked:
 871   case LibFunc_fstat:
 872   case LibFunc_frexp:
 873   case LibFunc_frexpf:
 874   case LibFunc_frexpl:
 875   case LibFunc_fstatvfs:
 876     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
 877   case LibFunc_fgets:
 878   case LibFunc_fgets_unlocked:
 879     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
 880             FTy.getParamType(2)->isPointerTy());
 881   case LibFunc_fread:
 882   case LibFunc_fread_unlocked:
 883     return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() &&
 884             FTy.getParamType(3)->isPointerTy());
 885   case LibFunc_fwrite:
 886   case LibFunc_fwrite_unlocked:
 887     return (NumParams == 4 && FTy.getReturnType()->isIntegerTy() &&
 888             FTy.getParamType(0)->isPointerTy() &&
 889             FTy.getParamType(1)->isIntegerTy() &&
 890             FTy.getParamType(2)->isIntegerTy() &&
 891             FTy.getParamType(3)->isPointerTy());
 892   case LibFunc_fputs:
 893   case LibFunc_fputs_unlocked:
 894     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
 895             FTy.getParamType(1)->isPointerTy());
 896   case LibFunc_fscanf:
 897   case LibFunc_fiprintf:
 898   case LibFunc_fprintf:
 899     return (NumParams >= 2 && FTy.getReturnType()->isIntegerTy() &&
 900             FTy.getParamType(0)->isPointerTy() &&
 901             FTy.getParamType(1)->isPointerTy());
 902   case LibFunc_fgetpos:
 903     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
 904             FTy.getParamType(1)->isPointerTy());
 905   case LibFunc_getchar:
 906   case LibFunc_getchar_unlocked:
 907     return (NumParams == 0 && FTy.getReturnType()->isIntegerTy());
 908   case LibFunc_gets:
 909     return (NumParams == 1 && FTy.getParamType(0) == PCharTy);
 910   case LibFunc_getitimer:
 911     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
 912   case LibFunc_ungetc:
 913     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
 914   case LibFunc_utime:
 915   case LibFunc_utimes:
 916     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
 917             FTy.getParamType(1)->isPointerTy());
 918   case LibFunc_putc:
 919   case LibFunc_putc_unlocked:
 920     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
 921   case LibFunc_pread:
 922   case LibFunc_pwrite:
 923     return (NumParams == 4 && FTy.getParamType(1)->isPointerTy());
 924   case LibFunc_popen:
 925     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
 926             FTy.getParamType(0)->isPointerTy() &&
 927             FTy.getParamType(1)->isPointerTy());
 928   case LibFunc_vscanf:
 929     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
 930   case LibFunc_vsscanf:
 931     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
 932             FTy.getParamType(2)->isPointerTy());
 933   case LibFunc_vfscanf:
 934     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() &&
 935             FTy.getParamType(2)->isPointerTy());
 936   case LibFunc_valloc:
 937     return (FTy.getReturnType()->isPointerTy());
 938   case LibFunc_vprintf:
 939     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
 940   case LibFunc_vfprintf:
 941   case LibFunc_vsprintf:
 942     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() &&
 943             FTy.getParamType(1)->isPointerTy());
 944   case LibFunc_vsnprintf:
 945     return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() &&
 946             FTy.getParamType(2)->isPointerTy());
 947   case LibFunc_open:
 948     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy());
 949   case LibFunc_opendir:
 950     return (NumParams == 1 && FTy.getReturnType()->isPointerTy() &&
 951             FTy.getParamType(0)->isPointerTy());
 952   case LibFunc_tmpfile:
 953     return (FTy.getReturnType()->isPointerTy());
 954   case LibFunc_htonl:
 955   case LibFunc_ntohl:
 956     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
 957             FTy.getReturnType() == FTy.getParamType(0));
 958   case LibFunc_htons:
 959   case LibFunc_ntohs:
 960     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(16) &&
 961             FTy.getReturnType() == FTy.getParamType(0));
 962   case LibFunc_lstat:
 963     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
 964             FTy.getParamType(1)->isPointerTy());
 965   case LibFunc_lchown:
 966     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy());
 967   case LibFunc_qsort:
 968     return (NumParams == 4 && FTy.getParamType(3)->isPointerTy());
 969   case LibFunc_dunder_strdup:
 970   case LibFunc_dunder_strndup:
 971     return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() &&
 972             FTy.getParamType(0)->isPointerTy());
 973   case LibFunc_dunder_strtok_r:
 974     return (NumParams == 3 && FTy.getParamType(1)->isPointerTy());
 975   case LibFunc_under_IO_putc:
 976     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
 977   case LibFunc_dunder_isoc99_scanf:
 978     return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy());
 979   case LibFunc_stat64:
 980   case LibFunc_lstat64:
 981   case LibFunc_statvfs64:
 982     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
 983             FTy.getParamType(1)->isPointerTy());
 984   case LibFunc_dunder_isoc99_sscanf:
 985     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() &&
 986             FTy.getParamType(1)->isPointerTy());
 987   case LibFunc_fopen64:
 988     return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
 989             FTy.getParamType(0)->isPointerTy() &&
 990             FTy.getParamType(1)->isPointerTy());
 991   case LibFunc_tmpfile64:
 992     return (FTy.getReturnType()->isPointerTy());
 993   case LibFunc_fstat64:
 994   case LibFunc_fstatvfs64:
 995     return (NumParams == 2 && FTy.getParamType(1)->isPointerTy());
 996   case LibFunc_open64:
 997     return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy());
 998   case LibFunc_gettimeofday:
 999     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() &&
1000             FTy.getParamType(1)->isPointerTy());
1001
1002   // new(unsigned int);
1003   case LibFunc_Znwj:
1004   // new(unsigned long);
1005   case LibFunc_Znwm:
1006   // new[](unsigned int);
1007   case LibFunc_Znaj:
1008   // new[](unsigned long);
1009   case LibFunc_Znam:
1010   // new(unsigned int);
1011   case LibFunc_msvc_new_int:
1012   // new(unsigned long long);
1013   case LibFunc_msvc_new_longlong:
1014   // new[](unsigned int);
1015   case LibFunc_msvc_new_array_int:
1016   // new[](unsigned long long);
1017   case LibFunc_msvc_new_array_longlong:
1018     return (NumParams == 1 && FTy.getReturnType()->isPointerTy());
1019
1020   // new(unsigned int, nothrow);
1021   case LibFunc_ZnwjRKSt9nothrow_t:
1022   // new(unsigned long, nothrow);
1023   case LibFunc_ZnwmRKSt9nothrow_t:
1024   // new[](unsigned int, nothrow);
1025   case LibFunc_ZnajRKSt9nothrow_t:
1026   // new[](unsigned long, nothrow);
1027   case LibFunc_ZnamRKSt9nothrow_t:
1028   // new(unsigned int, nothrow);
1029   case LibFunc_msvc_new_int_nothrow:
1030   // new(unsigned long long, nothrow);
1031   case LibFunc_msvc_new_longlong_nothrow:
1032   // new[](unsigned int, nothrow);
1033   case LibFunc_msvc_new_array_int_nothrow:
1034   // new[](unsigned long long, nothrow);
1035   case LibFunc_msvc_new_array_longlong_nothrow:
1036   // new(unsigned int, align_val_t)
1037   case LibFunc_ZnwjSt11align_val_t:
1038   // new(unsigned long, align_val_t)
1039   case LibFunc_ZnwmSt11align_val_t:
1040   // new[](unsigned int, align_val_t)
1041   case LibFunc_ZnajSt11align_val_t:
1042   // new[](unsigned long, align_val_t)
1043   case LibFunc_ZnamSt11align_val_t:
1044     return (NumParams == 2 && FTy.getReturnType()->isPointerTy());
1045
1046   // new(unsigned int, align_val_t, nothrow)
1047   case LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t:
1048   // new(unsigned long, align_val_t, nothrow)
1049   case LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t:
1050   // new[](unsigned int, align_val_t, nothrow)
1051   case LibFunc_ZnajSt11align_val_tRKSt9nothrow_t:
1052   // new[](unsigned long, align_val_t, nothrow)
1053   case LibFunc_ZnamSt11align_val_tRKSt9nothrow_t:
1054     return (NumParams == 3 && FTy.getReturnType()->isPointerTy());
1055
1056   // void operator delete[](void*);
1057   case LibFunc_ZdaPv:
1058   // void operator delete(void*);
1059   case LibFunc_ZdlPv:
1060   // void operator delete[](void*);
1061   case LibFunc_msvc_delete_array_ptr32:
1062   // void operator delete[](void*);
1063   case LibFunc_msvc_delete_array_ptr64:
1064   // void operator delete(void*);
1065   case LibFunc_msvc_delete_ptr32:
1066   // void operator delete(void*);
1067   case LibFunc_msvc_delete_ptr64:
1068     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
1069
1070   // void operator delete[](void*, nothrow);
1071   case LibFunc_ZdaPvRKSt9nothrow_t:
1072   // void operator delete[](void*, unsigned int);
1073   case LibFunc_ZdaPvj:
1074   // void operator delete[](void*, unsigned long);
1075   case LibFunc_ZdaPvm:
1076   // void operator delete(void*, nothrow);
1077   case LibFunc_ZdlPvRKSt9nothrow_t:
1078   // void operator delete(void*, unsigned int);
1079   case LibFunc_ZdlPvj:
1080   // void operator delete(void*, unsigned long);
1081   case LibFunc_ZdlPvm:
1082   // void operator delete(void*, align_val_t)
1083   case LibFunc_ZdlPvSt11align_val_t:
1084   // void operator delete[](void*, align_val_t)
1085   case LibFunc_ZdaPvSt11align_val_t:
1086   // void operator delete[](void*, unsigned int);
1087   case LibFunc_msvc_delete_array_ptr32_int:
1088   // void operator delete[](void*, nothrow);
1089   case LibFunc_msvc_delete_array_ptr32_nothrow:
1090   // void operator delete[](void*, unsigned long long);
1091   case LibFunc_msvc_delete_array_ptr64_longlong:
1092   // void operator delete[](void*, nothrow);
1093   case LibFunc_msvc_delete_array_ptr64_nothrow:
1094   // void operator delete(void*, unsigned int);
1095   case LibFunc_msvc_delete_ptr32_int:
1096   // void operator delete(void*, nothrow);
1097   case LibFunc_msvc_delete_ptr32_nothrow:
1098   // void operator delete(void*, unsigned long long);
1099   case LibFunc_msvc_delete_ptr64_longlong:
1100   // void operator delete(void*, nothrow);
1101   case LibFunc_msvc_delete_ptr64_nothrow:
1102     return (NumParams == 2 && FTy.getParamType(0)->isPointerTy());
1103
1104   // void operator delete(void*, align_val_t, nothrow)
1105   case LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t:
1106   // void operator delete[](void*, align_val_t, nothrow)
1107   case LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t:
1108     return (NumParams == 3 && FTy.getParamType(0)->isPointerTy());
1109
1110   case LibFunc_memset_pattern16:
1111     return (!FTy.isVarArg() && NumParams == 3 &&
1112             FTy.getParamType(0)->isPointerTy() &&
1113             FTy.getParamType(1)->isPointerTy() &&
1114             FTy.getParamType(2)->isIntegerTy());
1115
1116   case LibFunc_cxa_guard_abort:
1117   case LibFunc_cxa_guard_acquire:
1118   case LibFunc_cxa_guard_release:
1119   case LibFunc_nvvm_reflect:
1120     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy());
1121
1122   case LibFunc_sincospi_stret:
1123   case LibFunc_sincospif_stret:
1124     return (NumParams == 1 && FTy.getParamType(0)->isFloatingPointTy());
1125
1126   case LibFunc_acos:
1127   case LibFunc_acos_finite:
1128   case LibFunc_acosf:
1129   case LibFunc_acosf_finite:
1130   case LibFunc_acosh:
1131   case LibFunc_acosh_finite:
1132   case LibFunc_acoshf:
1133   case LibFunc_acoshf_finite:
1134   case LibFunc_acoshl:
1135   case LibFunc_acoshl_finite:
1136   case LibFunc_acosl:
1137   case LibFunc_acosl_finite:
1138   case LibFunc_asin:
1139   case LibFunc_asin_finite:
1140   case LibFunc_asinf:
1141   case LibFunc_asinf_finite:
1142   case LibFunc_asinh:
1143   case LibFunc_asinhf:
1144   case LibFunc_asinhl:
1145   case LibFunc_asinl:
1146   case LibFunc_asinl_finite:
1147   case LibFunc_atan:
1148   case LibFunc_atanf:
1149   case LibFunc_atanh:
1150   case LibFunc_atanh_finite:
1151   case LibFunc_atanhf:
1152   case LibFunc_atanhf_finite:
1153   case LibFunc_atanhl:
1154   case LibFunc_atanhl_finite:
1155   case LibFunc_atanl:
1156   case LibFunc_cbrt:
1157   case LibFunc_cbrtf:
1158   case LibFunc_cbrtl:
1159   case LibFunc_ceil:
1160   case LibFunc_ceilf:
1161   case LibFunc_ceill:
1162   case LibFunc_cos:
1163   case LibFunc_cosf:
1164   case LibFunc_cosh:
1165   case LibFunc_cosh_finite:
1166   case LibFunc_coshf:
1167   case LibFunc_coshf_finite:
1168   case LibFunc_coshl:
1169   case LibFunc_coshl_finite:
1170   case LibFunc_cosl:
1171   case LibFunc_exp10:
1172   case LibFunc_exp10_finite:
1173   case LibFunc_exp10f:
1174   case LibFunc_exp10f_finite:
1175   case LibFunc_exp10l:
1176   case LibFunc_exp10l_finite:
1177   case LibFunc_exp2:
1178   case LibFunc_exp2_finite:
1179   case LibFunc_exp2f:
1180   case LibFunc_exp2f_finite:
1181   case LibFunc_exp2l:
1182   case LibFunc_exp2l_finite:
1183   case LibFunc_exp:
1184   case LibFunc_exp_finite:
1185   case LibFunc_expf:
1186   case LibFunc_expf_finite:
1187   case LibFunc_expl:
1188   case LibFunc_expl_finite:
1189   case LibFunc_expm1:
1190   case LibFunc_expm1f:
1191   case LibFunc_expm1l:
1192   case LibFunc_fabs:
1193   case LibFunc_fabsf:
1194   case LibFunc_fabsl:
1195   case LibFunc_floor:
1196   case LibFunc_floorf:
1197   case LibFunc_floorl:
1198   case LibFunc_log10:
1199   case LibFunc_log10_finite:
1200   case LibFunc_log10f:
1201   case LibFunc_log10f_finite:
1202   case LibFunc_log10l:
1203   case LibFunc_log10l_finite:
1204   case LibFunc_log1p:
1205   case LibFunc_log1pf:
1206   case LibFunc_log1pl:
1207   case LibFunc_log2:
1208   case LibFunc_log2_finite:
1209   case LibFunc_log2f:
1210   case LibFunc_log2f_finite:
1211   case LibFunc_log2l:
1212   case LibFunc_log2l_finite:
1213   case LibFunc_log:
1214   case LibFunc_log_finite:
1215   case LibFunc_logb:
1216   case LibFunc_logbf:
1217   case LibFunc_logbl:
1218   case LibFunc_logf:
1219   case LibFunc_logf_finite:
1220   case LibFunc_logl:
1221   case LibFunc_logl_finite:
1222   case LibFunc_nearbyint:
1223   case LibFunc_nearbyintf:
1224   case LibFunc_nearbyintl:
1225   case LibFunc_rint:
1226   case LibFunc_rintf:
1227   case LibFunc_rintl:
1228   case LibFunc_round:
1229   case LibFunc_roundf:
1230   case LibFunc_roundl:
1231   case LibFunc_sin:
1232   case LibFunc_sinf:
1233   case LibFunc_sinh:
1234   case LibFunc_sinh_finite:
1235   case LibFunc_sinhf:
1236   case LibFunc_sinhf_finite:
1237   case LibFunc_sinhl:
1238   case LibFunc_sinhl_finite:
1239   case LibFunc_sinl:
1240   case LibFunc_sqrt:
1241   case LibFunc_sqrt_finite:
1242   case LibFunc_sqrtf:
1243   case LibFunc_sqrtf_finite:
1244   case LibFunc_sqrtl:
1245   case LibFunc_sqrtl_finite:
1246   case LibFunc_tan:
1247   case LibFunc_tanf:
1248   case LibFunc_tanh:
1249   case LibFunc_tanhf:
1250   case LibFunc_tanhl:
1251   case LibFunc_tanl:
1252   case LibFunc_trunc:
1253   case LibFunc_truncf:
1254   case LibFunc_truncl:
1255     return (NumParams == 1 && FTy.getReturnType()->isFloatingPointTy() &&
1256             FTy.getReturnType() == FTy.getParamType(0));
1257
1258   case LibFunc_atan2:
1259   case LibFunc_atan2_finite:
1260   case LibFunc_atan2f:
1261   case LibFunc_atan2f_finite:
1262   case LibFunc_atan2l:
1263   case LibFunc_atan2l_finite:
1264   case LibFunc_fmin:
1265   case LibFunc_fminf:
1266   case LibFunc_fminl:
1267   case LibFunc_fmax:
1268   case LibFunc_fmaxf:
1269   case LibFunc_fmaxl:
1270   case LibFunc_fmod:
1271   case LibFunc_fmodf:
1272   case LibFunc_fmodl:
1273   case LibFunc_copysign:
1274   case LibFunc_copysignf:
1275   case LibFunc_copysignl:
1276   case LibFunc_pow:
1277   case LibFunc_pow_finite:
1278   case LibFunc_powf:
1279   case LibFunc_powf_finite:
1280   case LibFunc_powl:
1281   case LibFunc_powl_finite:
1282     return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() &&
1283             FTy.getReturnType() == FTy.getParamType(0) &&
1284             FTy.getReturnType() == FTy.getParamType(1));
1285
1286   case LibFunc_ldexp:
1287   case LibFunc_ldexpf:
1288   case LibFunc_ldexpl:
1289     return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() &&
1290             FTy.getReturnType() == FTy.getParamType(0) &&
1291             FTy.getParamType(1)->isIntegerTy(32));
1292
1293   case LibFunc_ffs:
1294   case LibFunc_ffsl:
1295   case LibFunc_ffsll:
1296   case LibFunc_fls:
1297   case LibFunc_flsl:
1298   case LibFunc_flsll:
1299     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
1300             FTy.getParamType(0)->isIntegerTy());
1301
1302   case LibFunc_isdigit:
1303   case LibFunc_isascii:
1304   case LibFunc_toascii:
1305   case LibFunc_putchar:
1306   case LibFunc_putchar_unlocked:
1307     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) &&
1308             FTy.getReturnType() == FTy.getParamType(0));
1309
1310   case LibFunc_abs:
1311   case LibFunc_labs:
1312   case LibFunc_llabs:
1313     return (NumParams == 1 && FTy.getReturnType()->isIntegerTy() &&
1314             FTy.getReturnType() == FTy.getParamType(0));
1315
1316   case LibFunc_cxa_atexit:
1317     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy() &&
1318             FTy.getParamType(0)->isPointerTy() &&
1319             FTy.getParamType(1)->isPointerTy() &&
1320             FTy.getParamType(2)->isPointerTy());
1321
1322   case LibFunc_sinpi:
1323   case LibFunc_cospi:
1324     return (NumParams == 1 && FTy.getReturnType()->isDoubleTy() &&
1325             FTy.getReturnType() == FTy.getParamType(0));
1326
1327   case LibFunc_sinpif:
1328   case LibFunc_cospif:
1329     return (NumParams == 1 && FTy.getReturnType()->isFloatTy() &&
1330             FTy.getReturnType() == FTy.getParamType(0));
1331
1332   case LibFunc_strnlen:
1333     return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(1) &&
1334             FTy.getParamType(0) == PCharTy &&
1335             FTy.getParamType(1) == SizeTTy);
1336
1337   case LibFunc_posix_memalign:
1338     return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) &&
1339             FTy.getParamType(0)->isPointerTy() &&
1340             FTy.getParamType(1) == SizeTTy && FTy.getParamType(2) == SizeTTy);
1341
1342   case LibFunc_wcslen:
1343     return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() &&
1344             FTy.getReturnType()->isIntegerTy());
1345
1346   case LibFunc_cabs:
1347   case LibFunc_cabsf:
1348   case LibFunc_cabsl: {
1349     Type* RetTy = FTy.getReturnType();
1350     if (!RetTy->isFloatingPointTy())
1351       return false;
1352
1353     // NOTE: These prototypes are target specific and currently support
1354     // "complex" passed as an array or discrete real & imaginary parameters.
1355     // Add other calling conventions to enable libcall optimizations.
1356     if (NumParams == 1)
1357       return (FTy.getParamType(0)->isArrayTy() &&
1358               FTy.getParamType(0)->getArrayNumElements() == 2 &&
1359               FTy.getParamType(0)->getArrayElementType() == RetTy);
1360     else if (NumParams == 2)
1361       return (FTy.getParamType(0) == RetTy && FTy.getParamType(1) == RetTy);
1362     else
1363       return false;
1364   }
1365   case LibFunc::NumLibFuncs:
1366     break;
1367   }
1368
1369   llvm_unreachable("Invalid libfunc");
1370 }
1371
1372 bool TargetLibraryInfoImpl::getLibFunc(const Function &FDecl,
1373                                        LibFunc &F) const {
1374   const DataLayout *DL =
1375       FDecl.getParent() ? &FDecl.getParent()->getDataLayout() : nullptr;
1376   return getLibFunc(FDecl.getName(), F) &&
1377          isValidProtoForLibFunc(*FDecl.getFunctionType(), F, DL);
1378 }
1379
1380 void TargetLibraryInfoImpl::disableAllFunctions() {
1381   memset(AvailableArray, 0, sizeof(AvailableArray));
1382 }
1383
1384 static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) {
1385   return LHS.ScalarFnName < RHS.ScalarFnName;
1386 }
1387
1388 static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) {
1389   return LHS.VectorFnName < RHS.VectorFnName;
1390 }
1391
1392 static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) {
1393   return LHS.ScalarFnName < S;
1394 }
1395
1396 static bool compareWithVectorFnName(const VecDesc &LHS, StringRef S) {
1397   return LHS.VectorFnName < S;
1398 }
1399
1400 void TargetLibraryInfoImpl::addVectorizableFunctions(ArrayRef<VecDesc> Fns) {
1401   VectorDescs.insert(VectorDescs.end(), Fns.begin(), Fns.end());
1402   llvm::sort(VectorDescs, compareByScalarFnName);
1403
1404   ScalarDescs.insert(ScalarDescs.end(), Fns.begin(), Fns.end());
1405   llvm::sort(ScalarDescs, compareByVectorFnName);
1406 }
1407
1408 void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib(
1409     enum VectorLibrary VecLib) {
1410   switch (VecLib) {
1411   case Accelerate: {
1412     const VecDesc VecFuncs[] = {
1413         // Floating-Point Arithmetic and Auxiliary Functions
1414         {"ceilf", "vceilf", 4},
1415         {"fabsf", "vfabsf", 4},
1416         {"llvm.fabs.f32", "vfabsf", 4},
1417         {"floorf", "vfloorf", 4},
1418         {"sqrtf", "vsqrtf", 4},
1419         {"llvm.sqrt.f32", "vsqrtf", 4},
1420
1421         // Exponential and Logarithmic Functions
1422         {"expf", "vexpf", 4},
1423         {"llvm.exp.f32", "vexpf", 4},
1424         {"expm1f", "vexpm1f", 4},
1425         {"logf", "vlogf", 4},
1426         {"llvm.log.f32", "vlogf", 4},
1427         {"log1pf", "vlog1pf", 4},
1428         {"log10f", "vlog10f", 4},
1429         {"llvm.log10.f32", "vlog10f", 4},
1430         {"logbf", "vlogbf", 4},
1431
1432         // Trigonometric Functions
1433         {"sinf", "vsinf", 4},
1434         {"llvm.sin.f32", "vsinf", 4},
1435         {"cosf", "vcosf", 4},
1436         {"llvm.cos.f32", "vcosf", 4},
1437         {"tanf", "vtanf", 4},
1438         {"asinf", "vasinf", 4},
1439         {"acosf", "vacosf", 4},
1440         {"atanf", "vatanf", 4},
1441
1442         // Hyperbolic Functions
1443         {"sinhf", "vsinhf", 4},
1444         {"coshf", "vcoshf", 4},
1445         {"tanhf", "vtanhf", 4},
1446         {"asinhf", "vasinhf", 4},
1447         {"acoshf", "vacoshf", 4},
1448         {"atanhf", "vatanhf", 4},
1449     };
1450     addVectorizableFunctions(VecFuncs);
1451     break;
1452   }
1453   case SVML: {
1454     const VecDesc VecFuncs[] = {
1455         {"sin", "__svml_sin2", 2},
1456         {"sin", "__svml_sin4", 4},
1457         {"sin", "__svml_sin8", 8},
1458
1459         {"sinf", "__svml_sinf4", 4},
1460         {"sinf", "__svml_sinf8", 8},
1461         {"sinf", "__svml_sinf16", 16},
1462
1463         {"llvm.sin.f64", "__svml_sin2", 2},
1464         {"llvm.sin.f64", "__svml_sin4", 4},
1465         {"llvm.sin.f64", "__svml_sin8", 8},
1466
1467         {"llvm.sin.f32", "__svml_sinf4", 4},
1468         {"llvm.sin.f32", "__svml_sinf8", 8},
1469         {"llvm.sin.f32", "__svml_sinf16", 16},
1470
1471         {"cos", "__svml_cos2", 2},
1472         {"cos", "__svml_cos4", 4},
1473         {"cos", "__svml_cos8", 8},
1474
1475         {"cosf", "__svml_cosf4", 4},
1476         {"cosf", "__svml_cosf8", 8},
1477         {"cosf", "__svml_cosf16", 16},
1478
1479         {"llvm.cos.f64", "__svml_cos2", 2},
1480         {"llvm.cos.f64", "__svml_cos4", 4},
1481         {"llvm.cos.f64", "__svml_cos8", 8},
1482
1483         {"llvm.cos.f32", "__svml_cosf4", 4},
1484         {"llvm.cos.f32", "__svml_cosf8", 8},
1485         {"llvm.cos.f32", "__svml_cosf16", 16},
1486
1487         {"pow", "__svml_pow2", 2},
1488         {"pow", "__svml_pow4", 4},
1489         {"pow", "__svml_pow8", 8},
1490
1491         {"powf", "__svml_powf4", 4},
1492         {"powf", "__svml_powf8", 8},
1493         {"powf", "__svml_powf16", 16},
1494
1495         { "__pow_finite", "__svml_pow2", 2 },
1496         { "__pow_finite", "__svml_pow4", 4 },
1497         { "__pow_finite", "__svml_pow8", 8 },
1498
1499         { "__powf_finite", "__svml_powf4", 4 },
1500         { "__powf_finite", "__svml_powf8", 8 },
1501         { "__powf_finite", "__svml_powf16", 16 },
1502
1503         {"llvm.pow.f64", "__svml_pow2", 2},
1504         {"llvm.pow.f64", "__svml_pow4", 4},
1505         {"llvm.pow.f64", "__svml_pow8", 8},
1506
1507         {"llvm.pow.f32", "__svml_powf4", 4},
1508         {"llvm.pow.f32", "__svml_powf8", 8},
1509         {"llvm.pow.f32", "__svml_powf16", 16},
1510
1511         {"exp", "__svml_exp2", 2},
1512         {"exp", "__svml_exp4", 4},
1513         {"exp", "__svml_exp8", 8},
1514
1515         {"expf", "__svml_expf4", 4},
1516         {"expf", "__svml_expf8", 8},
1517         {"expf", "__svml_expf16", 16},
1518
1519         { "__exp_finite", "__svml_exp2", 2 },
1520         { "__exp_finite", "__svml_exp4", 4 },
1521         { "__exp_finite", "__svml_exp8", 8 },
1522
1523         { "__expf_finite", "__svml_expf4", 4 },
1524         { "__expf_finite", "__svml_expf8", 8 },
1525         { "__expf_finite", "__svml_expf16", 16 },
1526
1527         {"llvm.exp.f64", "__svml_exp2", 2},
1528         {"llvm.exp.f64", "__svml_exp4", 4},
1529         {"llvm.exp.f64", "__svml_exp8", 8},
1530
1531         {"llvm.exp.f32", "__svml_expf4", 4},
1532         {"llvm.exp.f32", "__svml_expf8", 8},
1533         {"llvm.exp.f32", "__svml_expf16", 16},
1534
1535         {"log", "__svml_log2", 2},
1536         {"log", "__svml_log4", 4},
1537         {"log", "__svml_log8", 8},
1538
1539         {"logf", "__svml_logf4", 4},
1540         {"logf", "__svml_logf8", 8},
1541         {"logf", "__svml_logf16", 16},
1542
1543         { "__log_finite", "__svml_log2", 2 },
1544         { "__log_finite", "__svml_log4", 4 },
1545         { "__log_finite", "__svml_log8", 8 },
1546
1547         { "__logf_finite", "__svml_logf4", 4 },
1548         { "__logf_finite", "__svml_logf8", 8 },
1549         { "__logf_finite", "__svml_logf16", 16 },
1550
1551         {"llvm.log.f64", "__svml_log2", 2},
1552         {"llvm.log.f64", "__svml_log4", 4},
1553         {"llvm.log.f64", "__svml_log8", 8},
1554
1555         {"llvm.log.f32", "__svml_logf4", 4},
1556         {"llvm.log.f32", "__svml_logf8", 8},
1557         {"llvm.log.f32", "__svml_logf16", 16},
1558     };
1559     addVectorizableFunctions(VecFuncs);
1560     break;
1561   }
1562   case NoLibrary:
1563     break;
1564   }
1565 }
1566
1567 bool TargetLibraryInfoImpl::isFunctionVectorizable(StringRef funcName) const {
1568   funcName = sanitizeFunctionName(funcName);
1569   if (funcName.empty())
1570     return false;
1571
1572   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1573       VectorDescs.begin(), VectorDescs.end(), funcName,
1574       compareWithScalarFnName);
1575   return I != VectorDescs.end() && StringRef(I->ScalarFnName) == funcName;
1576 }
1577
1578 StringRef TargetLibraryInfoImpl::getVectorizedFunction(StringRef F,
1579                                                        unsigned VF) const {
1580   F = sanitizeFunctionName(F);
1581   if (F.empty())
1582     return F;
1583   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1584       VectorDescs.begin(), VectorDescs.end(), F, compareWithScalarFnName);
1585   while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == F) {
1586     if (I->VectorizationFactor == VF)
1587       return I->VectorFnName;
1588     ++I;
1589   }
1590   return StringRef();
1591 }
1592
1593 StringRef TargetLibraryInfoImpl::getScalarizedFunction(StringRef F,
1594                                                        unsigned &VF) const {
1595   F = sanitizeFunctionName(F);
1596   if (F.empty())
1597     return F;
1598
1599   std::vector<VecDesc>::const_iterator I = std::lower_bound(
1600       ScalarDescs.begin(), ScalarDescs.end(), F, compareWithVectorFnName);
1601   if (I == VectorDescs.end() || StringRef(I->VectorFnName) != F)
1602     return StringRef();
1603   VF = I->VectorizationFactor;
1604   return I->ScalarFnName;
1605 }
1606
1607 TargetLibraryInfo TargetLibraryAnalysis::run(Module &M,
1608                                              ModuleAnalysisManager &) {
1609   if (PresetInfoImpl)
1610     return TargetLibraryInfo(*PresetInfoImpl);
1611
1612   return TargetLibraryInfo(lookupInfoImpl(Triple(M.getTargetTriple())));
1613 }
1614
1615 TargetLibraryInfo TargetLibraryAnalysis::run(Function &F,
1616                                              FunctionAnalysisManager &) {
1617   if (PresetInfoImpl)
1618     return TargetLibraryInfo(*PresetInfoImpl);
1619
1620   return TargetLibraryInfo(
1621       lookupInfoImpl(Triple(F.getParent()->getTargetTriple())));
1622 }
1623
1624 TargetLibraryInfoImpl &TargetLibraryAnalysis::lookupInfoImpl(const Triple &T) {
1625   std::unique_ptr<TargetLibraryInfoImpl> &Impl =
1626       Impls[T.normalize()];
1627   if (!Impl)
1628     Impl.reset(new TargetLibraryInfoImpl(T));
1629
1630   return *Impl;
1631 }
1632
1633 unsigned TargetLibraryInfoImpl::getWCharSize(const Module &M) const {
1634   if (auto *ShortWChar = cast_or_null<ConstantAsMetadata>(
1635       M.getModuleFlag("wchar_size")))
1636     return cast<ConstantInt>(ShortWChar->getValue())->getZExtValue();
1637   return 0;
1638 }
1639
1640 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass()
1641     : ImmutablePass(ID), TLIImpl(), TLI(TLIImpl) {
1642   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1643 }
1644
1645 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(const Triple &T)
1646     : ImmutablePass(ID), TLIImpl(T), TLI(TLIImpl) {
1647   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1648 }
1649
1650 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(
1651     const TargetLibraryInfoImpl &TLIImpl)
1652     : ImmutablePass(ID), TLIImpl(TLIImpl), TLI(this->TLIImpl) {
1653   initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
1654 }
1655
1656 AnalysisKey TargetLibraryAnalysis::Key;
1657
1658 // Register the basic pass.
1659 INITIALIZE_PASS(TargetLibraryInfoWrapperPass, "targetlibinfo",
1660                 "Target Library Information", false, true)
1661 char TargetLibraryInfoWrapperPass::ID = 0;
1662
1663 void TargetLibraryInfoWrapperPass::anchor() {}