unittests/Analysis/TargetLibraryInfoTest.cpp

   1 //===--- TargetLibraryInfoTest.cpp - TLI/LibFunc unit tests ---------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/Analysis/TargetLibraryInfo.h"
  10 #include "llvm/AsmParser/Parser.h"
  11 #include "llvm/IR/LLVMContext.h"
  12 #include "llvm/IR/LegacyPassManager.h"
  13 #include "llvm/IR/Module.h"
  14 #include "llvm/Support/SourceMgr.h"
  15 #include "gtest/gtest.h"
  16
  17 using namespace llvm;
  18
  19 namespace {
  20
  21 class TargetLibraryInfoTest : public testing::Test {
  22 protected:
  23   LLVMContext Context;
  24   TargetLibraryInfoImpl TLII;
  25   TargetLibraryInfo TLI;
  26
  27   std::unique_ptr<Module> M;
  28
  29   TargetLibraryInfoTest() : TLI(TLII) {}
  30
  31   void parseAssembly(const char *Assembly) {
  32     SMDiagnostic Error;
  33     M = parseAssemblyString(Assembly, Error, Context);
  34
  35     std::string errMsg;
  36     raw_string_ostream os(errMsg);
  37     Error.print("", os);
  38
  39     if (!M)
  40       report_fatal_error(os.str());
  41   }
  42
  43   ::testing::AssertionResult isLibFunc(const Function *FDecl,
  44                                        LibFunc ExpectedLF) {
  45     StringRef ExpectedLFName = TLI.getName(ExpectedLF);
  46
  47     if (!FDecl)
  48       return ::testing::AssertionFailure() << ExpectedLFName << " not found";
  49
  50     LibFunc F;
  51     if (!TLI.getLibFunc(*FDecl, F))
  52       return ::testing::AssertionFailure() << ExpectedLFName << " invalid";
  53
  54     return ::testing::AssertionSuccess() << ExpectedLFName << " is LibFunc";
  55   }
  56 };
  57
  58 } // end anonymous namespace
  59
  60 // Check that we don't accept egregiously incorrect prototypes.
  61 TEST_F(TargetLibraryInfoTest, InvalidProto) {
  62   parseAssembly("%foo = type { %foo }\n");
  63
  64   auto *StructTy = M->getTypeByName("foo");
  65   auto *InvalidFTy = FunctionType::get(StructTy, /*isVarArg=*/false);
  66
  67   for (unsigned FI = 0; FI != LibFunc::NumLibFuncs; ++FI) {
  68     LibFunc LF = (LibFunc)FI;
  69     auto *F = cast<Function>(
  70         M->getOrInsertFunction(TLI.getName(LF), InvalidFTy).getCallee());
  71     EXPECT_FALSE(isLibFunc(F, LF));
  72   }
  73 }
  74
  75 // Check that we do accept know-correct prototypes.
  76 TEST_F(TargetLibraryInfoTest, ValidProto) {
  77   parseAssembly(
  78       // These functions use a 64-bit size_t; use the appropriate datalayout.
  79       "target datalayout = \"p:64:64:64\"\n"
  80
  81       // Struct pointers are replaced with an opaque pointer.
  82       "%struct = type opaque\n"
  83
  84       // These functions were extracted as-is from the OS X headers.
  85       "declare double @__cospi(double)\n"
  86       "declare float @__cospif(float)\n"
  87       "declare { double, double } @__sincospi_stret(double)\n"
  88       "declare <2 x float> @__sincospif_stret(float)\n"
  89       "declare double @__sinpi(double)\n"
  90       "declare float @__sinpif(float)\n"
  91       "declare i32 @abs(i32)\n"
  92       "declare i32 @access(i8*, i32)\n"
  93       "declare double @acos(double)\n"
  94       "declare float @acosf(float)\n"
  95       "declare double @acosh(double)\n"
  96       "declare float @acoshf(float)\n"
  97       "declare x86_fp80 @acoshl(x86_fp80)\n"
  98       "declare x86_fp80 @acosl(x86_fp80)\n"
  99       "declare double @asin(double)\n"
 100       "declare float @asinf(float)\n"
 101       "declare double @asinh(double)\n"
 102       "declare float @asinhf(float)\n"
 103       "declare x86_fp80 @asinhl(x86_fp80)\n"
 104       "declare x86_fp80 @asinl(x86_fp80)\n"
 105       "declare double @atan(double)\n"
 106       "declare double @atan2(double, double)\n"
 107       "declare float @atan2f(float, float)\n"
 108       "declare x86_fp80 @atan2l(x86_fp80, x86_fp80)\n"
 109       "declare float @atanf(float)\n"
 110       "declare double @atanh(double)\n"
 111       "declare float @atanhf(float)\n"
 112       "declare x86_fp80 @atanhl(x86_fp80)\n"
 113       "declare x86_fp80 @atanl(x86_fp80)\n"
 114       "declare double @atof(i8*)\n"
 115       "declare i32 @atoi(i8*)\n"
 116       "declare i64 @atol(i8*)\n"
 117       "declare i64 @atoll(i8*)\n"
 118       "declare i32 @bcmp(i8*, i8*, i64)\n"
 119       "declare void @bcopy(i8*, i8*, i64)\n"
 120       "declare void @bzero(i8*, i64)\n"
 121       "declare i8* @calloc(i64, i64)\n"
 122       "declare double @cbrt(double)\n"
 123       "declare float @cbrtf(float)\n"
 124       "declare x86_fp80 @cbrtl(x86_fp80)\n"
 125       "declare double @ceil(double)\n"
 126       "declare float @ceilf(float)\n"
 127       "declare x86_fp80 @ceill(x86_fp80)\n"
 128       "declare i32 @chown(i8*, i32, i32)\n"
 129       "declare void @clearerr(%struct*)\n"
 130       "declare double @copysign(double, double)\n"
 131       "declare float @copysignf(float, float)\n"
 132       "declare x86_fp80 @copysignl(x86_fp80, x86_fp80)\n"
 133       "declare double @cabs([2 x double])\n"
 134       "declare float @cabsf([2 x float])\n"
 135       "declare x86_fp80 @cabsl([2 x x86_fp80])\n"
 136       "declare double @cos(double)\n"
 137       "declare float @cosf(float)\n"
 138       "declare double @cosh(double)\n"
 139       "declare float @coshf(float)\n"
 140       "declare x86_fp80 @coshl(x86_fp80)\n"
 141       "declare x86_fp80 @cosl(x86_fp80)\n"
 142       "declare i8* @ctermid(i8*)\n"
 143       "declare double @exp(double)\n"
 144       "declare double @exp2(double)\n"
 145       "declare float @exp2f(float)\n"
 146       "declare x86_fp80 @exp2l(x86_fp80)\n"
 147       "declare float @expf(float)\n"
 148       "declare x86_fp80 @expl(x86_fp80)\n"
 149       "declare double @expm1(double)\n"
 150       "declare float @expm1f(float)\n"
 151       "declare x86_fp80 @expm1l(x86_fp80)\n"
 152       "declare double @fabs(double)\n"
 153       "declare float @fabsf(float)\n"
 154       "declare x86_fp80 @fabsl(x86_fp80)\n"
 155       "declare i32 @fclose(%struct*)\n"
 156       "declare i32 @feof(%struct*)\n"
 157       "declare i32 @ferror(%struct*)\n"
 158       "declare i32 @fflush(%struct*)\n"
 159       "declare i32 @ffs(i32)\n"
 160       "declare i32 @ffsl(i64)\n"
 161       "declare i32 @ffsll(i64)\n"
 162       "declare i32 @fgetc(%struct*)\n"
 163       "declare i32 @fgetc_unlocked(%struct*)\n"
 164       "declare i32 @fgetpos(%struct*, i64*)\n"
 165       "declare i8* @fgets(i8*, i32, %struct*)\n"
 166       "declare i8* @fgets_unlocked(i8*, i32, %struct*)\n"
 167       "declare i32 @fileno(%struct*)\n"
 168       "declare void @flockfile(%struct*)\n"
 169       "declare double @floor(double)\n"
 170       "declare float @floorf(float)\n"
 171       "declare x86_fp80 @floorl(x86_fp80)\n"
 172       "declare i32 @fls(i32)\n"
 173       "declare i32 @flsl(i64)\n"
 174       "declare i32 @flsll(i64)\n"
 175       "declare double @fmax(double, double)\n"
 176       "declare float @fmaxf(float, float)\n"
 177       "declare x86_fp80 @fmaxl(x86_fp80, x86_fp80)\n"
 178       "declare double @fmin(double, double)\n"
 179       "declare float @fminf(float, float)\n"
 180       "declare x86_fp80 @fminl(x86_fp80, x86_fp80)\n"
 181       "declare double @fmod(double, double)\n"
 182       "declare float @fmodf(float, float)\n"
 183       "declare x86_fp80 @fmodl(x86_fp80, x86_fp80)\n"
 184       "declare i32 @fprintf(%struct*, i8*, ...)\n"
 185       "declare i32 @fputc(i32, %struct*)\n"
 186       "declare i32 @fputc_unlocked(i32, %struct*)\n"
 187       "declare i64 @fread(i8*, i64, i64, %struct*)\n"
 188       "declare i64 @fread_unlocked(i8*, i64, i64, %struct*)\n"
 189       "declare void @free(i8*)\n"
 190       "declare double @frexp(double, i32*)\n"
 191       "declare float @frexpf(float, i32*)\n"
 192       "declare x86_fp80 @frexpl(x86_fp80, i32*)\n"
 193       "declare i32 @fscanf(%struct*, i8*, ...)\n"
 194       "declare i32 @fseek(%struct*, i64, i32)\n"
 195       "declare i32 @fseeko(%struct*, i64, i32)\n"
 196       "declare i32 @fsetpos(%struct*, i64*)\n"
 197       "declare i32 @fstatvfs(i32, %struct*)\n"
 198       "declare i64 @ftell(%struct*)\n"
 199       "declare i64 @ftello(%struct*)\n"
 200       "declare i32 @ftrylockfile(%struct*)\n"
 201       "declare void @funlockfile(%struct*)\n"
 202       "declare i32 @getc(%struct*)\n"
 203       "declare i32 @getc_unlocked(%struct*)\n"
 204       "declare i32 @getchar()\n"
 205       "declare i32 @getchar_unlocked()\n"
 206       "declare i8* @getenv(i8*)\n"
 207       "declare i32 @getitimer(i32, %struct*)\n"
 208       "declare i32 @getlogin_r(i8*, i64)\n"
 209       "declare %struct* @getpwnam(i8*)\n"
 210       "declare i8* @gets(i8*)\n"
 211       "declare i32 @gettimeofday(%struct*, i8*)\n"
 212       "declare i32 @_Z7isasciii(i32)\n"
 213       "declare i32 @_Z7isdigiti(i32)\n"
 214       "declare i64 @labs(i64)\n"
 215       "declare double @ldexp(double, i32)\n"
 216       "declare float @ldexpf(float, i32)\n"
 217       "declare x86_fp80 @ldexpl(x86_fp80, i32)\n"
 218       "declare i64 @llabs(i64)\n"
 219       "declare double @log(double)\n"
 220       "declare double @log10(double)\n"
 221       "declare float @log10f(float)\n"
 222       "declare x86_fp80 @log10l(x86_fp80)\n"
 223       "declare double @log1p(double)\n"
 224       "declare float @log1pf(float)\n"
 225       "declare x86_fp80 @log1pl(x86_fp80)\n"
 226       "declare double @log2(double)\n"
 227       "declare float @log2f(float)\n"
 228       "declare x86_fp80 @log2l(x86_fp80)\n"
 229       "declare double @logb(double)\n"
 230       "declare float @logbf(float)\n"
 231       "declare x86_fp80 @logbl(x86_fp80)\n"
 232       "declare float @logf(float)\n"
 233       "declare x86_fp80 @logl(x86_fp80)\n"
 234       "declare i8* @malloc(i64)\n"
 235       "declare i8* @memccpy(i8*, i8*, i32, i64)\n"
 236       "declare i8* @memchr(i8*, i32, i64)\n"
 237       "declare i32 @memcmp(i8*, i8*, i64)\n"
 238       "declare i8* @memcpy(i8*, i8*, i64)\n"
 239       "declare i8* @memmove(i8*, i8*, i64)\n"
 240       "declare i8* @memset(i8*, i32, i64)\n"
 241       "declare void @memset_pattern16(i8*, i8*, i64)\n"
 242       "declare i32 @mkdir(i8*, i16)\n"
 243       "declare double @modf(double, double*)\n"
 244       "declare float @modff(float, float*)\n"
 245       "declare x86_fp80 @modfl(x86_fp80, x86_fp80*)\n"
 246       "declare double @nearbyint(double)\n"
 247       "declare float @nearbyintf(float)\n"
 248       "declare x86_fp80 @nearbyintl(x86_fp80)\n"
 249       "declare i32 @pclose(%struct*)\n"
 250       "declare void @perror(i8*)\n"
 251       "declare i32 @posix_memalign(i8**, i64, i64)\n"
 252       "declare double @pow(double, double)\n"
 253       "declare float @powf(float, float)\n"
 254       "declare x86_fp80 @powl(x86_fp80, x86_fp80)\n"
 255       "declare i32 @printf(i8*, ...)\n"
 256       "declare i32 @putc(i32, %struct*)\n"
 257       "declare i32 @putc_unlocked(i32, %struct*)\n"
 258       "declare i32 @putchar(i32)\n"
 259       "declare i32 @putchar_unlocked(i32)\n"
 260       "declare i32 @puts(i8*)\n"
 261       "declare void @qsort(i8*, i64, i64, i32 (i8*, i8*)*)\n"
 262       "declare i64 @readlink(i8*, i8*, i64)\n"
 263       "declare i8* @realloc(i8*, i64)\n"
 264       "declare i8* @reallocf(i8*, i64)\n"
 265       "declare i32 @remove(i8*)\n"
 266       "declare i32 @rename(i8*, i8*)\n"
 267       "declare void @rewind(%struct*)\n"
 268       "declare double @rint(double)\n"
 269       "declare float @rintf(float)\n"
 270       "declare x86_fp80 @rintl(x86_fp80)\n"
 271       "declare i32 @rmdir(i8*)\n"
 272       "declare double @round(double)\n"
 273       "declare float @roundf(float)\n"
 274       "declare x86_fp80 @roundl(x86_fp80)\n"
 275       "declare i32 @scanf(i8*, ...)\n"
 276       "declare void @setbuf(%struct*, i8*)\n"
 277       "declare i32 @setitimer(i32, %struct*, %struct*)\n"
 278       "declare i32 @setvbuf(%struct*, i8*, i32, i64)\n"
 279       "declare double @sin(double)\n"
 280       "declare float @sinf(float)\n"
 281       "declare double @sinh(double)\n"
 282       "declare float @sinhf(float)\n"
 283       "declare x86_fp80 @sinhl(x86_fp80)\n"
 284       "declare x86_fp80 @sinl(x86_fp80)\n"
 285       "declare i32 @snprintf(i8*, i64, i8*, ...)\n"
 286       "declare i32 @sprintf(i8*, i8*, ...)\n"
 287       "declare double @sqrt(double)\n"
 288       "declare float @sqrtf(float)\n"
 289       "declare x86_fp80 @sqrtl(x86_fp80)\n"
 290       "declare i32 @sscanf(i8*, i8*, ...)\n"
 291       "declare i32 @statvfs(i8*, %struct*)\n"
 292       "declare i8* @stpcpy(i8*, i8*)\n"
 293       "declare i8* @stpncpy(i8*, i8*, i64)\n"
 294       "declare i32 @strcasecmp(i8*, i8*)\n"
 295       "declare i8* @strcat(i8*, i8*)\n"
 296       "declare i8* @strchr(i8*, i32)\n"
 297       "declare i32 @strcmp(i8*, i8*)\n"
 298       "declare i32 @strcoll(i8*, i8*)\n"
 299       "declare i8* @strcpy(i8*, i8*)\n"
 300       "declare i64 @strcspn(i8*, i8*)\n"
 301       "declare i8* @strdup(i8*)\n"
 302       "declare i64 @strlen(i8*)\n"
 303       "declare i32 @strncasecmp(i8*, i8*, i64)\n"
 304       "declare i8* @strncat(i8*, i8*, i64)\n"
 305       "declare i32 @strncmp(i8*, i8*, i64)\n"
 306       "declare i8* @strncpy(i8*, i8*, i64)\n"
 307       "declare i8* @strndup(i8*, i64)\n"
 308       "declare i64 @strnlen(i8*, i64)\n"
 309       "declare i8* @strpbrk(i8*, i8*)\n"
 310       "declare i8* @strrchr(i8*, i32)\n"
 311       "declare i64 @strspn(i8*, i8*)\n"
 312       "declare i8* @strstr(i8*, i8*)\n"
 313       "declare i8* @strtok(i8*, i8*)\n"
 314       "declare i8* @strtok_r(i8*, i8*, i8**)\n"
 315       "declare i64 @strtol(i8*, i8**, i32)\n"
 316       "declare i64 @strlcat(i8*, i8**, i64)\n"
 317       "declare i64 @strlcpy(i8*, i8**, i64)\n"
 318       "declare x86_fp80 @strtold(i8*, i8**)\n"
 319       "declare i64 @strtoll(i8*, i8**, i32)\n"
 320       "declare i64 @strtoul(i8*, i8**, i32)\n"
 321       "declare i64 @strtoull(i8*, i8**, i32)\n"
 322       "declare i64 @strxfrm(i8*, i8*, i64)\n"
 323       "declare double @tan(double)\n"
 324       "declare float @tanf(float)\n"
 325       "declare double @tanh(double)\n"
 326       "declare float @tanhf(float)\n"
 327       "declare x86_fp80 @tanhl(x86_fp80)\n"
 328       "declare x86_fp80 @tanl(x86_fp80)\n"
 329       "declare i64 @times(%struct*)\n"
 330       "declare %struct* @tmpfile()\n"
 331       "declare i32 @_Z7toasciii(i32)\n"
 332       "declare double @trunc(double)\n"
 333       "declare float @truncf(float)\n"
 334       "declare x86_fp80 @truncl(x86_fp80)\n"
 335       "declare i32 @uname(%struct*)\n"
 336       "declare i32 @ungetc(i32, %struct*)\n"
 337       "declare i32 @unlink(i8*)\n"
 338       "declare i32 @utime(i8*, %struct*)\n"
 339       "declare i32 @utimes(i8*, %struct*)\n"
 340       "declare i8* @valloc(i64)\n"
 341       "declare i32 @vfprintf(%struct*, i8*, %struct*)\n"
 342       "declare i32 @vfscanf(%struct*, i8*, %struct*)\n"
 343       "declare i32 @vprintf(i8*, %struct*)\n"
 344       "declare i32 @vscanf(i8*, %struct*)\n"
 345       "declare i32 @vsnprintf(i8*, i64, i8*, %struct*)\n"
 346       "declare i32 @vsprintf(i8*, i8*, %struct*)\n"
 347       "declare i32 @vsscanf(i8*, i8*, %struct*)\n"
 348       "declare i64 @wcslen(i32*)\n"
 349       "declare i32 @fork()\n"
 350       "declare i32 @execl(i8*, i8*, ...)\n"
 351       "declare i32 @execle(i8*, i8*, ...)\n"
 352       "declare i32 @execlp(i8*, i8*, ...)\n"
 353       "declare i32 @execv(i8*, i8**)\n"
 354       "declare i32 @execvP(i8*, i8*, i8**)\n"
 355       "declare i32 @execve(i8*, i8**, i8**)\n"
 356       "declare i32 @execvp(i8*, i8**)\n"
 357       "declare i32 @execvpe(i8*, i8**, i8**)\n"
 358
 359       // These functions were also extracted from the OS X headers, but they are
 360       // available with a special name on darwin.
 361       // This test uses the default TLI name instead.
 362       "declare i32 @chmod(i8*, i16)\n"
 363       "declare i32 @closedir(%struct*)\n"
 364       "declare %struct* @fdopen(i32, i8*)\n"
 365       "declare %struct* @fopen(i8*, i8*)\n"
 366       "declare i32 @fputs(i8*, %struct*)\n"
 367       "declare i32 @fputs_unlocked(i8*, %struct*)\n"
 368       "declare i32 @fstat(i32, %struct*)\n"
 369       "declare i64 @fwrite(i8*, i64, i64, %struct*)\n"
 370       "declare i64 @fwrite_unlocked(i8*, i64, i64, %struct*)\n"
 371       "declare i32 @lchown(i8*, i32, i32)\n"
 372       "declare i32 @lstat(i8*, %struct*)\n"
 373       "declare i64 @mktime(%struct*)\n"
 374       "declare i32 @open(i8*, i32, ...)\n"
 375       "declare %struct* @opendir(i8*)\n"
 376       "declare %struct* @popen(i8*, i8*)\n"
 377       "declare i64 @pread(i32, i8*, i64, i64)\n"
 378       "declare i64 @pwrite(i32, i8*, i64, i64)\n"
 379       "declare i64 @read(i32, i8*, i64)\n"
 380       "declare i8* @realpath(i8*, i8*)\n"
 381       "declare i32 @stat(i8*, %struct*)\n"
 382       "declare double @strtod(i8*, i8**)\n"
 383       "declare float @strtof(i8*, i8**)\n"
 384       "declare i32 @system(i8*)\n"
 385       "declare i32 @unsetenv(i8*)\n"
 386       "declare i64 @write(i32, i8*, i64)\n"
 387
 388       // These functions are available on Linux but not Darwin; they only differ
 389       // from their non-64 counterparts in the struct type.
 390       // Use the same prototype as the non-64 variant.
 391       "declare %struct* @fopen64(i8*, i8*)\n"
 392       "declare i32 @fstat64(i32, %struct*)\n"
 393       "declare i32 @fstatvfs64(i32, %struct*)\n"
 394       "declare i32 @lstat64(i8*, %struct*)\n"
 395       "declare i32 @open64(i8*, i32, ...)\n"
 396       "declare i32 @stat64(i8*, %struct*)\n"
 397       "declare i32 @statvfs64(i8*, %struct*)\n"
 398       "declare %struct* @tmpfile64()\n"
 399
 400       // These functions are also -64 variants, but do differ in the type of the
 401       // off_t (vs off64_t) parameter.  The non-64 variants declared above used
 402       // a 64-bit off_t, so, in practice, they are also equivalent.
 403       "declare i32 @fseeko64(%struct*, i64, i32)\n"
 404       "declare i64 @ftello64(%struct*)\n"
 405
 406       "declare void @_ZdaPv(i8*)\n"
 407       "declare void @_ZdaPvRKSt9nothrow_t(i8*, %struct*)\n"
 408       "declare void @_ZdaPvSt11align_val_t(i8*, i64)\n"
 409       "declare void @_ZdaPvSt11align_val_tRKSt9nothrow_t(i8*, i64, %struct*)\n"
 410       "declare void @_ZdaPvj(i8*, i32)\n"
 411       "declare void @_ZdaPvm(i8*, i64)\n"
 412       "declare void @_ZdlPv(i8*)\n"
 413       "declare void @_ZdlPvRKSt9nothrow_t(i8*, %struct*)\n"
 414       "declare void @_ZdlPvSt11align_val_t(i8*, i64)\n"
 415       "declare void @_ZdlPvSt11align_val_tRKSt9nothrow_t(i8*, i64, %struct*)\n"
 416       "declare void @_ZdlPvj(i8*, i32)\n"
 417       "declare void @_ZdlPvm(i8*, i64)\n"
 418       "declare i8* @_Znaj(i32)\n"
 419       "declare i8* @_ZnajRKSt9nothrow_t(i32, %struct*)\n"
 420       "declare i8* @_ZnajSt11align_val_t(i32, i32)\n"
 421       "declare i8* @_ZnajSt11align_val_tRKSt9nothrow_t(i32, i32, %struct*)\n"
 422       "declare i8* @_Znam(i64)\n"
 423       "declare i8* @_ZnamRKSt9nothrow_t(i64, %struct*)\n"
 424       "declare i8* @_ZnamSt11align_val_t(i64, i64)\n"
 425       "declare i8* @_ZnamSt11align_val_tRKSt9nothrow_t(i64, i64, %struct*)\n"
 426       "declare i8* @_Znwj(i32)\n"
 427       "declare i8* @_ZnwjRKSt9nothrow_t(i32, %struct*)\n"
 428       "declare i8* @_ZnwjSt11align_val_t(i32, i32)\n"
 429       "declare i8* @_ZnwjSt11align_val_tRKSt9nothrow_t(i32, i32, %struct*)\n"
 430       "declare i8* @_Znwm(i64)\n"
 431       "declare i8* @_ZnwmRKSt9nothrow_t(i64, %struct*)\n"
 432       "declare i8* @_ZnwmSt11align_val_t(i64, i64)\n"
 433       "declare i8* @_ZnwmSt11align_val_tRKSt9nothrow_t(i64, i64, %struct*)\n"
 434
 435       "declare void @\"??3@YAXPEAX@Z\"(i8*)\n"
 436       "declare void @\"??3@YAXPEAXAEBUnothrow_t@std@@@Z\"(i8*, %struct*)\n"
 437       "declare void @\"??3@YAXPEAX_K@Z\"(i8*, i64)\n"
 438       "declare void @\"??_V@YAXPEAX@Z\"(i8*)\n"
 439       "declare void @\"??_V@YAXPEAXAEBUnothrow_t@std@@@Z\"(i8*, %struct*)\n"
 440       "declare void @\"??_V@YAXPEAX_K@Z\"(i8*, i64)\n"
 441       "declare i8* @\"??2@YAPAXI@Z\"(i32)\n"
 442       "declare i8* @\"??2@YAPAXIABUnothrow_t@std@@@Z\"(i32, %struct*)\n"
 443       "declare i8* @\"??2@YAPEAX_K@Z\"(i64)\n"
 444       "declare i8* @\"??2@YAPEAX_KAEBUnothrow_t@std@@@Z\"(i64, %struct*)\n"
 445       "declare i8* @\"??_U@YAPAXI@Z\"(i32)\n"
 446       "declare i8* @\"??_U@YAPAXIABUnothrow_t@std@@@Z\"(i32, %struct*)\n"
 447       "declare i8* @\"??_U@YAPEAX_K@Z\"(i64)\n"
 448       "declare i8* @\"??_U@YAPEAX_KAEBUnothrow_t@std@@@Z\"(i64, %struct*)\n"
 449
 450       "declare void @\"??3@YAXPAX@Z\"(i8*)\n"
 451       "declare void @\"??3@YAXPAXABUnothrow_t@std@@@Z\"(i8*, %struct*)\n"
 452       "declare void @\"??3@YAXPAXI@Z\"(i8*, i32)\n"
 453       "declare void @\"??_V@YAXPAX@Z\"(i8*)\n"
 454       "declare void @\"??_V@YAXPAXABUnothrow_t@std@@@Z\"(i8*, %struct*)\n"
 455       "declare void @\"??_V@YAXPAXI@Z\"(i8*, i32)\n"
 456
 457       // These other functions were derived from the .def C declaration.
 458       "declare i32 @__cxa_atexit(void (i8*)*, i8*, i8*)\n"
 459       "declare void @__cxa_guard_abort(%struct*)\n"
 460       "declare i32 @__cxa_guard_acquire(%struct*)\n"
 461       "declare void @__cxa_guard_release(%struct*)\n"
 462
 463       "declare i32 @__nvvm_reflect(i8*)\n"
 464
 465       "declare i8* @__memcpy_chk(i8*, i8*, i64, i64)\n"
 466       "declare i8* @__memmove_chk(i8*, i8*, i64, i64)\n"
 467       "declare i8* @__memset_chk(i8*, i32, i64, i64)\n"
 468       "declare i8* @__stpcpy_chk(i8*, i8*, i64)\n"
 469       "declare i8* @__stpncpy_chk(i8*, i8*, i64, i64)\n"
 470       "declare i8* @__strcpy_chk(i8*, i8*, i64)\n"
 471       "declare i8* @__strncpy_chk(i8*, i8*, i64, i64)\n"
 472       "declare i8* @__memccpy_chk(i8*, i8*, i32, i64)\n"
 473       "declare i32 @__snprintf_chk(i8*, i64, i32, i64, i8*, ...)\n"
 474       "declare i32 @__sprintf_chk(i8*, i32, i64, i8*, ...)\n"
 475       "declare i8* @__strcat_chk(i8*, i8*, i64)\n"
 476       "declare i64 @__strlcat_chk(i8*, i8*, i64, i64)\n"
 477       "declare i8* @__strncat_chk(i8*, i8*, i64, i64)\n"
 478       "declare i64 @__strlcpy_chk(i8*, i8*, i64, i64)\n"
 479       "declare i32 @__vsnprintf_chk(i8*, i64, i32, i64, i8*, %struct*)\n"
 480       "declare i32 @__vsprintf_chk(i8*, i32, i64, i8*, %struct*)\n"
 481
 482       "declare i8* @memalign(i64, i64)\n"
 483       "declare i8* @mempcpy(i8*, i8*, i64)\n"
 484       "declare i8* @memrchr(i8*, i32, i64)\n"
 485
 486       // These are similar to the FILE* fgetc/fputc.
 487       "declare i32 @_IO_getc(%struct*)\n"
 488       "declare i32 @_IO_putc(i32, %struct*)\n"
 489
 490       "declare i32 @__isoc99_scanf(i8*, ...)\n"
 491       "declare i32 @__isoc99_sscanf(i8*, i8*, ...)\n"
 492       "declare i8* @__strdup(i8*)\n"
 493       "declare i8* @__strndup(i8*, i64)\n"
 494       "declare i8* @__strtok_r(i8*, i8*, i8**)\n"
 495
 496       "declare double @__sqrt_finite(double)\n"
 497       "declare float @__sqrtf_finite(float)\n"
 498       "declare x86_fp80 @__sqrtl_finite(x86_fp80)\n"
 499       "declare double @exp10(double)\n"
 500       "declare float @exp10f(float)\n"
 501       "declare x86_fp80 @exp10l(x86_fp80)\n"
 502
 503       // These printf variants have the same prototype as the non-'i' versions.
 504       "declare i32 @fiprintf(%struct*, i8*, ...)\n"
 505       "declare i32 @iprintf(i8*, ...)\n"
 506       "declare i32 @siprintf(i8*, i8*, ...)\n"
 507
 508       // __small_printf variants have the same prototype as the non-'i' versions.
 509       "declare i32 @__small_fprintf(%struct*, i8*, ...)\n"
 510       "declare i32 @__small_printf(i8*, ...)\n"
 511       "declare i32 @__small_sprintf(i8*, i8*, ...)\n"
 512
 513       "declare i32 @htonl(i32)\n"
 514       "declare i16 @htons(i16)\n"
 515       "declare i32 @ntohl(i32)\n"
 516       "declare i16 @ntohs(i16)\n"
 517
 518       "declare i32 @isascii(i32)\n"
 519       "declare i32 @isdigit(i32)\n"
 520       "declare i32 @toascii(i32)\n"
 521
 522       // These functions were extracted from math-finite.h which provides
 523       // functions similar to those in math.h, but optimized for handling
 524       // finite values only.
 525       "declare double @__acos_finite(double)\n"
 526       "declare float @__acosf_finite(float)\n"
 527       "declare x86_fp80 @__acosl_finite(x86_fp80)\n"
 528       "declare double @__acosh_finite(double)\n"
 529       "declare float @__acoshf_finite(float)\n"
 530       "declare x86_fp80 @__acoshl_finite(x86_fp80)\n"
 531       "declare double @__asin_finite(double)\n"
 532       "declare float @__asinf_finite(float)\n"
 533       "declare x86_fp80 @__asinl_finite(x86_fp80)\n"
 534       "declare double @__atan2_finite(double, double)\n"
 535       "declare float @__atan2f_finite(float, float)\n"
 536       "declare x86_fp80 @__atan2l_finite(x86_fp80, x86_fp80)\n"
 537       "declare double @__atanh_finite(double)\n"
 538       "declare float @__atanhf_finite(float)\n"
 539       "declare x86_fp80 @__atanhl_finite(x86_fp80)\n"
 540       "declare double @__cosh_finite(double)\n"
 541       "declare float @__coshf_finite(float)\n"
 542       "declare x86_fp80 @__coshl_finite(x86_fp80)\n"
 543       "declare double @__exp10_finite(double)\n"
 544       "declare float @__exp10f_finite(float)\n"
 545       "declare x86_fp80 @__exp10l_finite(x86_fp80)\n"
 546       "declare double @__exp2_finite(double)\n"
 547       "declare float @__exp2f_finite(float)\n"
 548       "declare x86_fp80 @__exp2l_finite(x86_fp80)\n"
 549       "declare double @__exp_finite(double)\n"
 550       "declare float @__expf_finite(float)\n"
 551       "declare x86_fp80 @__expl_finite(x86_fp80)\n"
 552       "declare double @__log10_finite(double)\n"
 553       "declare float @__log10f_finite(float)\n"
 554       "declare x86_fp80 @__log10l_finite(x86_fp80)\n"
 555       "declare double @__log2_finite(double)\n"
 556       "declare float @__log2f_finite(float)\n"
 557       "declare x86_fp80 @__log2l_finite(x86_fp80)\n"
 558       "declare double @__log_finite(double)\n"
 559       "declare float @__logf_finite(float)\n"
 560       "declare x86_fp80 @__logl_finite(x86_fp80)\n"
 561       "declare double @__pow_finite(double, double)\n"
 562       "declare float @__powf_finite(float, float)\n"
 563       "declare x86_fp80 @__powl_finite(x86_fp80, x86_fp80)\n"
 564       "declare double @__sinh_finite(double)\n"
 565       "declare float @__sinhf_finite(float)\n"
 566       "declare x86_fp80 @__sinhl_finite(x86_fp80)\n"
 567       );
 568
 569   for (unsigned FI = 0; FI != LibFunc::NumLibFuncs; ++FI) {
 570     LibFunc LF = (LibFunc)FI;
 571     // Make sure everything is available; we're not testing target defaults.
 572     TLII.setAvailable(LF);
 573     Function *F = M->getFunction(TLI.getName(LF));
 574     EXPECT_TRUE(isLibFunc(F, LF));
 575   }
 576 }