1 //===-- TargetLibraryInfo.cpp - Runtime library information ----------------==// 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 // This file implements the TargetLibraryInfo class. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/Analysis/TargetLibraryInfo.h" 14 #include "llvm/ADT/Triple.h" 15 #include "llvm/IR/Constants.h" 16 #include "llvm/InitializePasses.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::DarwinLibSystemM, 28 "Darwin_libsystem_m", "Darwin libsystem_m"), 29 clEnumValN(TargetLibraryInfoImpl::LIBMVEC_X86, "LIBMVEC-X86", 30 "GLIBC Vector Math library"), 31 clEnumValN(TargetLibraryInfoImpl::MASSV, "MASSV", 32 "IBM MASS vector library"), 33 clEnumValN(TargetLibraryInfoImpl::SVML, "SVML", 34 "Intel SVML library"))); 35 36 StringLiteral const TargetLibraryInfoImpl::StandardNames[LibFunc::NumLibFuncs] = 37 { 38 #define TLI_DEFINE_STRING 39 #include "llvm/Analysis/TargetLibraryInfo.def" 40 }; 41 42 static bool hasSinCosPiStret(const Triple &T) { 43 // Only Darwin variants have _stret versions of combined trig functions. 44 if (!T.isOSDarwin()) 45 return false; 46 47 // The ABI is rather complicated on x86, so don't do anything special there. 48 if (T.getArch() == Triple::x86) 49 return false; 50 51 if (T.isMacOSX() && T.isMacOSXVersionLT(10, 9)) 52 return false; 53 54 if (T.isiOS() && T.isOSVersionLT(7, 0)) 55 return false; 56 57 return true; 58 } 59 60 static bool hasBcmp(const Triple &TT) { 61 // Posix removed support from bcmp() in 2001, but the glibc and several 62 // implementations of the libc still have it. 63 if (TT.isOSLinux()) 64 return TT.isGNUEnvironment() || TT.isMusl(); 65 // Both NetBSD and OpenBSD are planning to remove the function. Windows does 66 // not have it. 67 return TT.isOSFreeBSD() || TT.isOSSolaris(); 68 } 69 70 static bool isCallingConvCCompatible(CallingConv::ID CC, StringRef TT, 71 FunctionType *FuncTy) { 72 switch (CC) { 73 default: 74 return false; 75 case llvm::CallingConv::C: 76 return true; 77 case llvm::CallingConv::ARM_APCS: 78 case llvm::CallingConv::ARM_AAPCS: 79 case llvm::CallingConv::ARM_AAPCS_VFP: { 80 81 // The iOS ABI diverges from the standard in some cases, so for now don't 82 // try to simplify those calls. 83 if (Triple(TT).isiOS()) 84 return false; 85 86 if (!FuncTy->getReturnType()->isPointerTy() && 87 !FuncTy->getReturnType()->isIntegerTy() && 88 !FuncTy->getReturnType()->isVoidTy()) 89 return false; 90 91 for (auto *Param : FuncTy->params()) { 92 if (!Param->isPointerTy() && !Param->isIntegerTy()) 93 return false; 94 } 95 return true; 96 } 97 } 98 return false; 99 } 100 101 bool TargetLibraryInfoImpl::isCallingConvCCompatible(CallBase *CI) { 102 return ::isCallingConvCCompatible(CI->getCallingConv(), 103 CI->getModule()->getTargetTriple(), 104 CI->getFunctionType()); 105 } 106 107 bool TargetLibraryInfoImpl::isCallingConvCCompatible(Function *F) { 108 return ::isCallingConvCCompatible(F->getCallingConv(), 109 F->getParent()->getTargetTriple(), 110 F->getFunctionType()); 111 } 112 113 /// Initialize the set of available library functions based on the specified 114 /// target triple. This should be carefully written so that a missing target 115 /// triple gets a sane set of defaults. 116 static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T, 117 ArrayRef<StringLiteral> StandardNames) { 118 // Verify that the StandardNames array is in alphabetical order. 119 assert( 120 llvm::is_sorted(StandardNames, 121 [](StringRef LHS, StringRef RHS) { return LHS < RHS; }) && 122 "TargetLibraryInfoImpl function names must be sorted"); 123 124 // Set IO unlocked variants as unavailable 125 // Set them as available per system below 126 TLI.setUnavailable(LibFunc_getc_unlocked); 127 TLI.setUnavailable(LibFunc_getchar_unlocked); 128 TLI.setUnavailable(LibFunc_putc_unlocked); 129 TLI.setUnavailable(LibFunc_putchar_unlocked); 130 TLI.setUnavailable(LibFunc_fputc_unlocked); 131 TLI.setUnavailable(LibFunc_fgetc_unlocked); 132 TLI.setUnavailable(LibFunc_fread_unlocked); 133 TLI.setUnavailable(LibFunc_fwrite_unlocked); 134 TLI.setUnavailable(LibFunc_fputs_unlocked); 135 TLI.setUnavailable(LibFunc_fgets_unlocked); 136 137 bool ShouldExtI32Param = false, ShouldExtI32Return = false, 138 ShouldSignExtI32Param = false; 139 // PowerPC64, Sparc64, SystemZ need signext/zeroext on i32 parameters and 140 // returns corresponding to C-level ints and unsigned ints. 141 if (T.isPPC64() || T.getArch() == Triple::sparcv9 || 142 T.getArch() == Triple::systemz) { 143 ShouldExtI32Param = true; 144 ShouldExtI32Return = true; 145 } 146 // Mips, on the other hand, needs signext on i32 parameters corresponding 147 // to both signed and unsigned ints. 148 if (T.isMIPS()) { 149 ShouldSignExtI32Param = true; 150 } 151 TLI.setShouldExtI32Param(ShouldExtI32Param); 152 TLI.setShouldExtI32Return(ShouldExtI32Return); 153 TLI.setShouldSignExtI32Param(ShouldSignExtI32Param); 154 155 // Let's assume by default that the size of int is 32 bits, unless the target 156 // is a 16-bit architecture because then it most likely is 16 bits. If that 157 // isn't true for a target those defaults should be overridden below. 158 TLI.setIntSize(T.isArch16Bit() ? 16 : 32); 159 160 // There is really no runtime library on AMDGPU, apart from 161 // __kmpc_alloc/free_shared. 162 if (T.isAMDGPU()) { 163 TLI.disableAllFunctions(); 164 TLI.setAvailable(llvm::LibFunc___kmpc_alloc_shared); 165 TLI.setAvailable(llvm::LibFunc___kmpc_free_shared); 166 return; 167 } 168 169 // memset_pattern16 is only available on iOS 3.0 and Mac OS X 10.5 and later. 170 // All versions of watchOS support it. 171 if (T.isMacOSX()) { 172 // available IO unlocked variants on Mac OS X 173 TLI.setAvailable(LibFunc_getc_unlocked); 174 TLI.setAvailable(LibFunc_getchar_unlocked); 175 TLI.setAvailable(LibFunc_putc_unlocked); 176 TLI.setAvailable(LibFunc_putchar_unlocked); 177 178 if (T.isMacOSXVersionLT(10, 5)) 179 TLI.setUnavailable(LibFunc_memset_pattern16); 180 } else if (T.isiOS()) { 181 if (T.isOSVersionLT(3, 0)) 182 TLI.setUnavailable(LibFunc_memset_pattern16); 183 } else if (!T.isWatchOS()) { 184 TLI.setUnavailable(LibFunc_memset_pattern16); 185 } 186 187 if (!hasSinCosPiStret(T)) { 188 TLI.setUnavailable(LibFunc_sinpi); 189 TLI.setUnavailable(LibFunc_sinpif); 190 TLI.setUnavailable(LibFunc_cospi); 191 TLI.setUnavailable(LibFunc_cospif); 192 TLI.setUnavailable(LibFunc_sincospi_stret); 193 TLI.setUnavailable(LibFunc_sincospif_stret); 194 } 195 196 if (!hasBcmp(T)) 197 TLI.setUnavailable(LibFunc_bcmp); 198 199 if (T.isMacOSX() && T.getArch() == Triple::x86 && 200 !T.isMacOSXVersionLT(10, 7)) { 201 // x86-32 OSX has a scheme where fwrite and fputs (and some other functions 202 // we don't care about) have two versions; on recent OSX, the one we want 203 // has a $UNIX2003 suffix. The two implementations are identical except 204 // for the return value in some edge cases. However, we don't want to 205 // generate code that depends on the old symbols. 206 TLI.setAvailableWithName(LibFunc_fwrite, "fwrite$UNIX2003"); 207 TLI.setAvailableWithName(LibFunc_fputs, "fputs$UNIX2003"); 208 } 209 210 // iprintf and friends are only available on XCore, TCE, and Emscripten. 211 if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce && 212 T.getOS() != Triple::Emscripten) { 213 TLI.setUnavailable(LibFunc_iprintf); 214 TLI.setUnavailable(LibFunc_siprintf); 215 TLI.setUnavailable(LibFunc_fiprintf); 216 } 217 218 // __small_printf and friends are only available on Emscripten. 219 if (T.getOS() != Triple::Emscripten) { 220 TLI.setUnavailable(LibFunc_small_printf); 221 TLI.setUnavailable(LibFunc_small_sprintf); 222 TLI.setUnavailable(LibFunc_small_fprintf); 223 } 224 225 if (T.isOSWindows() && !T.isOSCygMing()) { 226 // XXX: The earliest documentation available at the moment is for VS2015/VC19: 227 // https://docs.microsoft.com/en-us/cpp/c-runtime-library/floating-point-support?view=vs-2015 228 // XXX: In order to use an MSVCRT older than VC19, 229 // the specific library version must be explicit in the target triple, 230 // e.g., x86_64-pc-windows-msvc18. 231 bool hasPartialC99 = true; 232 if (T.isKnownWindowsMSVCEnvironment()) { 233 unsigned Major, Minor, Micro; 234 T.getEnvironmentVersion(Major, Minor, Micro); 235 hasPartialC99 = (Major == 0 || Major >= 19); 236 } 237 238 // Latest targets support C89 math functions, in part. 239 bool isARM = (T.getArch() == Triple::aarch64 || 240 T.getArch() == Triple::arm); 241 bool hasPartialFloat = (isARM || 242 T.getArch() == Triple::x86_64); 243 244 // Win32 does not support float C89 math functions, in general. 245 if (!hasPartialFloat) { 246 TLI.setUnavailable(LibFunc_acosf); 247 TLI.setUnavailable(LibFunc_asinf); 248 TLI.setUnavailable(LibFunc_atan2f); 249 TLI.setUnavailable(LibFunc_atanf); 250 TLI.setUnavailable(LibFunc_ceilf); 251 TLI.setUnavailable(LibFunc_cosf); 252 TLI.setUnavailable(LibFunc_coshf); 253 TLI.setUnavailable(LibFunc_expf); 254 TLI.setUnavailable(LibFunc_floorf); 255 TLI.setUnavailable(LibFunc_fmodf); 256 TLI.setUnavailable(LibFunc_log10f); 257 TLI.setUnavailable(LibFunc_logf); 258 TLI.setUnavailable(LibFunc_modff); 259 TLI.setUnavailable(LibFunc_powf); 260 TLI.setUnavailable(LibFunc_remainderf); 261 TLI.setUnavailable(LibFunc_sinf); 262 TLI.setUnavailable(LibFunc_sinhf); 263 TLI.setUnavailable(LibFunc_sqrtf); 264 TLI.setUnavailable(LibFunc_tanf); 265 TLI.setUnavailable(LibFunc_tanhf); 266 } 267 if (!isARM) 268 TLI.setUnavailable(LibFunc_fabsf); 269 TLI.setUnavailable(LibFunc_frexpf); 270 TLI.setUnavailable(LibFunc_ldexpf); 271 272 // Win32 does not support long double C89 math functions. 273 TLI.setUnavailable(LibFunc_acosl); 274 TLI.setUnavailable(LibFunc_asinl); 275 TLI.setUnavailable(LibFunc_atan2l); 276 TLI.setUnavailable(LibFunc_atanl); 277 TLI.setUnavailable(LibFunc_ceill); 278 TLI.setUnavailable(LibFunc_cosl); 279 TLI.setUnavailable(LibFunc_coshl); 280 TLI.setUnavailable(LibFunc_expl); 281 TLI.setUnavailable(LibFunc_fabsl); 282 TLI.setUnavailable(LibFunc_floorl); 283 TLI.setUnavailable(LibFunc_fmodl); 284 TLI.setUnavailable(LibFunc_frexpl); 285 TLI.setUnavailable(LibFunc_ldexpl); 286 TLI.setUnavailable(LibFunc_log10l); 287 TLI.setUnavailable(LibFunc_logl); 288 TLI.setUnavailable(LibFunc_modfl); 289 TLI.setUnavailable(LibFunc_powl); 290 TLI.setUnavailable(LibFunc_remainderl); 291 TLI.setUnavailable(LibFunc_sinl); 292 TLI.setUnavailable(LibFunc_sinhl); 293 TLI.setUnavailable(LibFunc_sqrtl); 294 TLI.setUnavailable(LibFunc_tanl); 295 TLI.setUnavailable(LibFunc_tanhl); 296 297 // Win32 does not fully support C99 math functions. 298 if (!hasPartialC99) { 299 TLI.setUnavailable(LibFunc_acosh); 300 TLI.setUnavailable(LibFunc_acoshf); 301 TLI.setUnavailable(LibFunc_asinh); 302 TLI.setUnavailable(LibFunc_asinhf); 303 TLI.setUnavailable(LibFunc_atanh); 304 TLI.setUnavailable(LibFunc_atanhf); 305 TLI.setAvailableWithName(LibFunc_cabs, "_cabs"); 306 TLI.setUnavailable(LibFunc_cabsf); 307 TLI.setUnavailable(LibFunc_cbrt); 308 TLI.setUnavailable(LibFunc_cbrtf); 309 TLI.setAvailableWithName(LibFunc_copysign, "_copysign"); 310 TLI.setAvailableWithName(LibFunc_copysignf, "_copysignf"); 311 TLI.setUnavailable(LibFunc_exp2); 312 TLI.setUnavailable(LibFunc_exp2f); 313 TLI.setUnavailable(LibFunc_expm1); 314 TLI.setUnavailable(LibFunc_expm1f); 315 TLI.setUnavailable(LibFunc_fmax); 316 TLI.setUnavailable(LibFunc_fmaxf); 317 TLI.setUnavailable(LibFunc_fmin); 318 TLI.setUnavailable(LibFunc_fminf); 319 TLI.setUnavailable(LibFunc_log1p); 320 TLI.setUnavailable(LibFunc_log1pf); 321 TLI.setUnavailable(LibFunc_log2); 322 TLI.setUnavailable(LibFunc_log2f); 323 TLI.setAvailableWithName(LibFunc_logb, "_logb"); 324 if (hasPartialFloat) 325 TLI.setAvailableWithName(LibFunc_logbf, "_logbf"); 326 else 327 TLI.setUnavailable(LibFunc_logbf); 328 TLI.setUnavailable(LibFunc_rint); 329 TLI.setUnavailable(LibFunc_rintf); 330 TLI.setUnavailable(LibFunc_round); 331 TLI.setUnavailable(LibFunc_roundf); 332 TLI.setUnavailable(LibFunc_trunc); 333 TLI.setUnavailable(LibFunc_truncf); 334 } 335 336 // Win32 does not support long double C99 math functions. 337 TLI.setUnavailable(LibFunc_acoshl); 338 TLI.setUnavailable(LibFunc_asinhl); 339 TLI.setUnavailable(LibFunc_atanhl); 340 TLI.setUnavailable(LibFunc_cabsl); 341 TLI.setUnavailable(LibFunc_cbrtl); 342 TLI.setUnavailable(LibFunc_copysignl); 343 TLI.setUnavailable(LibFunc_exp2l); 344 TLI.setUnavailable(LibFunc_expm1l); 345 TLI.setUnavailable(LibFunc_fmaxl); 346 TLI.setUnavailable(LibFunc_fminl); 347 TLI.setUnavailable(LibFunc_log1pl); 348 TLI.setUnavailable(LibFunc_log2l); 349 TLI.setUnavailable(LibFunc_logbl); 350 TLI.setUnavailable(LibFunc_nearbyintl); 351 TLI.setUnavailable(LibFunc_rintl); 352 TLI.setUnavailable(LibFunc_roundl); 353 TLI.setUnavailable(LibFunc_truncl); 354 355 // Win32 does not support these functions, but 356 // they are generally available on POSIX-compliant systems. 357 TLI.setUnavailable(LibFunc_access); 358 TLI.setUnavailable(LibFunc_chmod); 359 TLI.setUnavailable(LibFunc_closedir); 360 TLI.setUnavailable(LibFunc_fdopen); 361 TLI.setUnavailable(LibFunc_fileno); 362 TLI.setUnavailable(LibFunc_fseeko); 363 TLI.setUnavailable(LibFunc_fstat); 364 TLI.setUnavailable(LibFunc_ftello); 365 TLI.setUnavailable(LibFunc_gettimeofday); 366 TLI.setUnavailable(LibFunc_memccpy); 367 TLI.setUnavailable(LibFunc_mkdir); 368 TLI.setUnavailable(LibFunc_open); 369 TLI.setUnavailable(LibFunc_opendir); 370 TLI.setUnavailable(LibFunc_pclose); 371 TLI.setUnavailable(LibFunc_popen); 372 TLI.setUnavailable(LibFunc_read); 373 TLI.setUnavailable(LibFunc_rmdir); 374 TLI.setUnavailable(LibFunc_stat); 375 TLI.setUnavailable(LibFunc_strcasecmp); 376 TLI.setUnavailable(LibFunc_strncasecmp); 377 TLI.setUnavailable(LibFunc_unlink); 378 TLI.setUnavailable(LibFunc_utime); 379 TLI.setUnavailable(LibFunc_write); 380 } 381 382 if (T.isOSWindows() && !T.isWindowsCygwinEnvironment()) { 383 // These functions aren't available in either MSVC or MinGW environments. 384 TLI.setUnavailable(LibFunc_bcmp); 385 TLI.setUnavailable(LibFunc_bcopy); 386 TLI.setUnavailable(LibFunc_bzero); 387 TLI.setUnavailable(LibFunc_chown); 388 TLI.setUnavailable(LibFunc_ctermid); 389 TLI.setUnavailable(LibFunc_ffs); 390 TLI.setUnavailable(LibFunc_flockfile); 391 TLI.setUnavailable(LibFunc_fstatvfs); 392 TLI.setUnavailable(LibFunc_ftrylockfile); 393 TLI.setUnavailable(LibFunc_funlockfile); 394 TLI.setUnavailable(LibFunc_getitimer); 395 TLI.setUnavailable(LibFunc_getlogin_r); 396 TLI.setUnavailable(LibFunc_getpwnam); 397 TLI.setUnavailable(LibFunc_htonl); 398 TLI.setUnavailable(LibFunc_htons); 399 TLI.setUnavailable(LibFunc_lchown); 400 TLI.setUnavailable(LibFunc_lstat); 401 TLI.setUnavailable(LibFunc_ntohl); 402 TLI.setUnavailable(LibFunc_ntohs); 403 TLI.setUnavailable(LibFunc_pread); 404 TLI.setUnavailable(LibFunc_pwrite); 405 TLI.setUnavailable(LibFunc_readlink); 406 TLI.setUnavailable(LibFunc_realpath); 407 TLI.setUnavailable(LibFunc_setitimer); 408 TLI.setUnavailable(LibFunc_statvfs); 409 TLI.setUnavailable(LibFunc_stpcpy); 410 TLI.setUnavailable(LibFunc_stpncpy); 411 TLI.setUnavailable(LibFunc_times); 412 TLI.setUnavailable(LibFunc_uname); 413 TLI.setUnavailable(LibFunc_unsetenv); 414 TLI.setUnavailable(LibFunc_utimes); 415 } 416 417 // Pick just one set of new/delete variants. 418 if (T.isOSMSVCRT()) { 419 // MSVC, doesn't have the Itanium new/delete. 420 TLI.setUnavailable(LibFunc_ZdaPv); 421 TLI.setUnavailable(LibFunc_ZdaPvRKSt9nothrow_t); 422 TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_t); 423 TLI.setUnavailable(LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t); 424 TLI.setUnavailable(LibFunc_ZdaPvj); 425 TLI.setUnavailable(LibFunc_ZdaPvjSt11align_val_t); 426 TLI.setUnavailable(LibFunc_ZdaPvm); 427 TLI.setUnavailable(LibFunc_ZdaPvmSt11align_val_t); 428 TLI.setUnavailable(LibFunc_ZdlPv); 429 TLI.setUnavailable(LibFunc_ZdlPvRKSt9nothrow_t); 430 TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_t); 431 TLI.setUnavailable(LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t); 432 TLI.setUnavailable(LibFunc_ZdlPvj); 433 TLI.setUnavailable(LibFunc_ZdlPvjSt11align_val_t); 434 TLI.setUnavailable(LibFunc_ZdlPvm); 435 TLI.setUnavailable(LibFunc_ZdlPvmSt11align_val_t); 436 TLI.setUnavailable(LibFunc_Znaj); 437 TLI.setUnavailable(LibFunc_ZnajRKSt9nothrow_t); 438 TLI.setUnavailable(LibFunc_ZnajSt11align_val_t); 439 TLI.setUnavailable(LibFunc_ZnajSt11align_val_tRKSt9nothrow_t); 440 TLI.setUnavailable(LibFunc_Znam); 441 TLI.setUnavailable(LibFunc_ZnamRKSt9nothrow_t); 442 TLI.setUnavailable(LibFunc_ZnamSt11align_val_t); 443 TLI.setUnavailable(LibFunc_ZnamSt11align_val_tRKSt9nothrow_t); 444 TLI.setUnavailable(LibFunc_Znwj); 445 TLI.setUnavailable(LibFunc_ZnwjRKSt9nothrow_t); 446 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_t); 447 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t); 448 TLI.setUnavailable(LibFunc_Znwm); 449 TLI.setUnavailable(LibFunc_ZnwmRKSt9nothrow_t); 450 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_t); 451 TLI.setUnavailable(LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t); 452 } else { 453 // Not MSVC, assume it's Itanium. 454 TLI.setUnavailable(LibFunc_msvc_new_int); 455 TLI.setUnavailable(LibFunc_msvc_new_int_nothrow); 456 TLI.setUnavailable(LibFunc_msvc_new_longlong); 457 TLI.setUnavailable(LibFunc_msvc_new_longlong_nothrow); 458 TLI.setUnavailable(LibFunc_msvc_delete_ptr32); 459 TLI.setUnavailable(LibFunc_msvc_delete_ptr32_nothrow); 460 TLI.setUnavailable(LibFunc_msvc_delete_ptr32_int); 461 TLI.setUnavailable(LibFunc_msvc_delete_ptr64); 462 TLI.setUnavailable(LibFunc_msvc_delete_ptr64_nothrow); 463 TLI.setUnavailable(LibFunc_msvc_delete_ptr64_longlong); 464 TLI.setUnavailable(LibFunc_msvc_new_array_int); 465 TLI.setUnavailable(LibFunc_msvc_new_array_int_nothrow); 466 TLI.setUnavailable(LibFunc_msvc_new_array_longlong); 467 TLI.setUnavailable(LibFunc_msvc_new_array_longlong_nothrow); 468 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32); 469 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_nothrow); 470 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr32_int); 471 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64); 472 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_nothrow); 473 TLI.setUnavailable(LibFunc_msvc_delete_array_ptr64_longlong); 474 } 475 476 switch (T.getOS()) { 477 case Triple::MacOSX: 478 // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0 479 // and their names are __exp10 and __exp10f. exp10l is not available on 480 // OS X or iOS. 481 TLI.setUnavailable(LibFunc_exp10l); 482 if (T.isMacOSXVersionLT(10, 9)) { 483 TLI.setUnavailable(LibFunc_exp10); 484 TLI.setUnavailable(LibFunc_exp10f); 485 } else { 486 TLI.setAvailableWithName(LibFunc_exp10, "__exp10"); 487 TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f"); 488 } 489 break; 490 case Triple::IOS: 491 case Triple::TvOS: 492 case Triple::WatchOS: 493 TLI.setUnavailable(LibFunc_exp10l); 494 if (!T.isWatchOS() && 495 (T.isOSVersionLT(7, 0) || (T.isOSVersionLT(9, 0) && T.isX86()))) { 496 TLI.setUnavailable(LibFunc_exp10); 497 TLI.setUnavailable(LibFunc_exp10f); 498 } else { 499 TLI.setAvailableWithName(LibFunc_exp10, "__exp10"); 500 TLI.setAvailableWithName(LibFunc_exp10f, "__exp10f"); 501 } 502 break; 503 case Triple::Linux: 504 // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely 505 // buggy prior to glibc version 2.18. Until this version is widely deployed 506 // or we have a reasonable detection strategy, we cannot use exp10 reliably 507 // on Linux. 508 // 509 // Fall through to disable all of them. 510 LLVM_FALLTHROUGH; 511 default: 512 TLI.setUnavailable(LibFunc_exp10); 513 TLI.setUnavailable(LibFunc_exp10f); 514 TLI.setUnavailable(LibFunc_exp10l); 515 } 516 517 // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and 518 // Linux (GLIBC): 519 // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html 520 // http://svn.freebsd.org/base/head/lib/libc/string/ffsl.c 521 // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html 522 switch (T.getOS()) { 523 case Triple::Darwin: 524 case Triple::MacOSX: 525 case Triple::IOS: 526 case Triple::TvOS: 527 case Triple::WatchOS: 528 case Triple::FreeBSD: 529 case Triple::Linux: 530 break; 531 default: 532 TLI.setUnavailable(LibFunc_ffsl); 533 } 534 535 // ffsll is available on at least FreeBSD and Linux (GLIBC): 536 // http://svn.freebsd.org/base/head/lib/libc/string/ffsll.c 537 // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html 538 switch (T.getOS()) { 539 case Triple::Darwin: 540 case Triple::MacOSX: 541 case Triple::IOS: 542 case Triple::TvOS: 543 case Triple::WatchOS: 544 case Triple::FreeBSD: 545 case Triple::Linux: 546 break; 547 default: 548 TLI.setUnavailable(LibFunc_ffsll); 549 } 550 551 // The following functions are available on at least FreeBSD: 552 // http://svn.freebsd.org/base/head/lib/libc/string/fls.c 553 // http://svn.freebsd.org/base/head/lib/libc/string/flsl.c 554 // http://svn.freebsd.org/base/head/lib/libc/string/flsll.c 555 if (!T.isOSFreeBSD()) { 556 TLI.setUnavailable(LibFunc_fls); 557 TLI.setUnavailable(LibFunc_flsl); 558 TLI.setUnavailable(LibFunc_flsll); 559 } 560 561 // The following functions are only available on GNU/Linux (using glibc). 562 // Linux variants without glibc (eg: bionic, musl) may have some subset. 563 if (!T.isOSLinux() || !T.isGNUEnvironment()) { 564 TLI.setUnavailable(LibFunc_dunder_strdup); 565 TLI.setUnavailable(LibFunc_dunder_strtok_r); 566 TLI.setUnavailable(LibFunc_dunder_isoc99_scanf); 567 TLI.setUnavailable(LibFunc_dunder_isoc99_sscanf); 568 TLI.setUnavailable(LibFunc_under_IO_getc); 569 TLI.setUnavailable(LibFunc_under_IO_putc); 570 // But, Android and musl have memalign. 571 if (!T.isAndroid() && !T.isMusl()) 572 TLI.setUnavailable(LibFunc_memalign); 573 TLI.setUnavailable(LibFunc_fopen64); 574 TLI.setUnavailable(LibFunc_fseeko64); 575 TLI.setUnavailable(LibFunc_fstat64); 576 TLI.setUnavailable(LibFunc_fstatvfs64); 577 TLI.setUnavailable(LibFunc_ftello64); 578 TLI.setUnavailable(LibFunc_lstat64); 579 TLI.setUnavailable(LibFunc_open64); 580 TLI.setUnavailable(LibFunc_stat64); 581 TLI.setUnavailable(LibFunc_statvfs64); 582 TLI.setUnavailable(LibFunc_tmpfile64); 583 584 // Relaxed math functions are included in math-finite.h on Linux (GLIBC). 585 // Note that math-finite.h is no longer supported by top-of-tree GLIBC, 586 // so we keep these functions around just so that they're recognized by 587 // the ConstantFolder. 588 TLI.setUnavailable(LibFunc_acos_finite); 589 TLI.setUnavailable(LibFunc_acosf_finite); 590 TLI.setUnavailable(LibFunc_acosl_finite); 591 TLI.setUnavailable(LibFunc_acosh_finite); 592 TLI.setUnavailable(LibFunc_acoshf_finite); 593 TLI.setUnavailable(LibFunc_acoshl_finite); 594 TLI.setUnavailable(LibFunc_asin_finite); 595 TLI.setUnavailable(LibFunc_asinf_finite); 596 TLI.setUnavailable(LibFunc_asinl_finite); 597 TLI.setUnavailable(LibFunc_atan2_finite); 598 TLI.setUnavailable(LibFunc_atan2f_finite); 599 TLI.setUnavailable(LibFunc_atan2l_finite); 600 TLI.setUnavailable(LibFunc_atanh_finite); 601 TLI.setUnavailable(LibFunc_atanhf_finite); 602 TLI.setUnavailable(LibFunc_atanhl_finite); 603 TLI.setUnavailable(LibFunc_cosh_finite); 604 TLI.setUnavailable(LibFunc_coshf_finite); 605 TLI.setUnavailable(LibFunc_coshl_finite); 606 TLI.setUnavailable(LibFunc_exp10_finite); 607 TLI.setUnavailable(LibFunc_exp10f_finite); 608 TLI.setUnavailable(LibFunc_exp10l_finite); 609 TLI.setUnavailable(LibFunc_exp2_finite); 610 TLI.setUnavailable(LibFunc_exp2f_finite); 611 TLI.setUnavailable(LibFunc_exp2l_finite); 612 TLI.setUnavailable(LibFunc_exp_finite); 613 TLI.setUnavailable(LibFunc_expf_finite); 614 TLI.setUnavailable(LibFunc_expl_finite); 615 TLI.setUnavailable(LibFunc_log10_finite); 616 TLI.setUnavailable(LibFunc_log10f_finite); 617 TLI.setUnavailable(LibFunc_log10l_finite); 618 TLI.setUnavailable(LibFunc_log2_finite); 619 TLI.setUnavailable(LibFunc_log2f_finite); 620 TLI.setUnavailable(LibFunc_log2l_finite); 621 TLI.setUnavailable(LibFunc_log_finite); 622 TLI.setUnavailable(LibFunc_logf_finite); 623 TLI.setUnavailable(LibFunc_logl_finite); 624 TLI.setUnavailable(LibFunc_pow_finite); 625 TLI.setUnavailable(LibFunc_powf_finite); 626 TLI.setUnavailable(LibFunc_powl_finite); 627 TLI.setUnavailable(LibFunc_sinh_finite); 628 TLI.setUnavailable(LibFunc_sinhf_finite); 629 TLI.setUnavailable(LibFunc_sinhl_finite); 630 TLI.setUnavailable(LibFunc_sqrt_finite); 631 TLI.setUnavailable(LibFunc_sqrtf_finite); 632 TLI.setUnavailable(LibFunc_sqrtl_finite); 633 } 634 635 if ((T.isOSLinux() && T.isGNUEnvironment()) || 636 (T.isAndroid() && !T.isAndroidVersionLT(28))) { 637 // available IO unlocked variants on GNU/Linux and Android P or later 638 TLI.setAvailable(LibFunc_getc_unlocked); 639 TLI.setAvailable(LibFunc_getchar_unlocked); 640 TLI.setAvailable(LibFunc_putc_unlocked); 641 TLI.setAvailable(LibFunc_putchar_unlocked); 642 TLI.setAvailable(LibFunc_fputc_unlocked); 643 TLI.setAvailable(LibFunc_fgetc_unlocked); 644 TLI.setAvailable(LibFunc_fread_unlocked); 645 TLI.setAvailable(LibFunc_fwrite_unlocked); 646 TLI.setAvailable(LibFunc_fputs_unlocked); 647 TLI.setAvailable(LibFunc_fgets_unlocked); 648 } 649 650 if (T.isAndroid() && T.isAndroidVersionLT(21)) { 651 TLI.setUnavailable(LibFunc_stpcpy); 652 TLI.setUnavailable(LibFunc_stpncpy); 653 } 654 655 if (T.isPS4()) { 656 // PS4 does have memalign. 657 TLI.setAvailable(LibFunc_memalign); 658 659 // PS4 does not have new/delete with "unsigned int" size parameter; 660 // it only has the "unsigned long" versions. 661 TLI.setUnavailable(LibFunc_ZdaPvj); 662 TLI.setUnavailable(LibFunc_ZdaPvjSt11align_val_t); 663 TLI.setUnavailable(LibFunc_ZdlPvj); 664 TLI.setUnavailable(LibFunc_ZdlPvjSt11align_val_t); 665 TLI.setUnavailable(LibFunc_Znaj); 666 TLI.setUnavailable(LibFunc_ZnajRKSt9nothrow_t); 667 TLI.setUnavailable(LibFunc_ZnajSt11align_val_t); 668 TLI.setUnavailable(LibFunc_ZnajSt11align_val_tRKSt9nothrow_t); 669 TLI.setUnavailable(LibFunc_Znwj); 670 TLI.setUnavailable(LibFunc_ZnwjRKSt9nothrow_t); 671 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_t); 672 TLI.setUnavailable(LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t); 673 674 // None of the *_chk functions. 675 TLI.setUnavailable(LibFunc_memccpy_chk); 676 TLI.setUnavailable(LibFunc_memcpy_chk); 677 TLI.setUnavailable(LibFunc_memmove_chk); 678 TLI.setUnavailable(LibFunc_mempcpy_chk); 679 TLI.setUnavailable(LibFunc_memset_chk); 680 TLI.setUnavailable(LibFunc_snprintf_chk); 681 TLI.setUnavailable(LibFunc_sprintf_chk); 682 TLI.setUnavailable(LibFunc_stpcpy_chk); 683 TLI.setUnavailable(LibFunc_stpncpy_chk); 684 TLI.setUnavailable(LibFunc_strcat_chk); 685 TLI.setUnavailable(LibFunc_strcpy_chk); 686 TLI.setUnavailable(LibFunc_strlcat_chk); 687 TLI.setUnavailable(LibFunc_strlcat_chk); 688 TLI.setUnavailable(LibFunc_strlcpy_chk); 689 TLI.setUnavailable(LibFunc_strlen_chk); 690 TLI.setUnavailable(LibFunc_strncat_chk); 691 TLI.setUnavailable(LibFunc_strncpy_chk); 692 TLI.setUnavailable(LibFunc_vsnprintf_chk); 693 TLI.setUnavailable(LibFunc_vsprintf_chk); 694 695 // Various Posix system functions. 696 TLI.setUnavailable(LibFunc_access); 697 TLI.setUnavailable(LibFunc_chmod); 698 TLI.setUnavailable(LibFunc_chown); 699 TLI.setUnavailable(LibFunc_closedir); 700 TLI.setUnavailable(LibFunc_ctermid); 701 TLI.setUnavailable(LibFunc_execl); 702 TLI.setUnavailable(LibFunc_execle); 703 TLI.setUnavailable(LibFunc_execlp); 704 TLI.setUnavailable(LibFunc_execv); 705 TLI.setUnavailable(LibFunc_execvP); 706 TLI.setUnavailable(LibFunc_execve); 707 TLI.setUnavailable(LibFunc_execvp); 708 TLI.setUnavailable(LibFunc_execvpe); 709 TLI.setUnavailable(LibFunc_fork); 710 TLI.setUnavailable(LibFunc_fstat); 711 TLI.setUnavailable(LibFunc_fstatvfs); 712 TLI.setUnavailable(LibFunc_getenv); 713 TLI.setUnavailable(LibFunc_getitimer); 714 TLI.setUnavailable(LibFunc_getlogin_r); 715 TLI.setUnavailable(LibFunc_getpwnam); 716 TLI.setUnavailable(LibFunc_gettimeofday); 717 TLI.setUnavailable(LibFunc_lchown); 718 TLI.setUnavailable(LibFunc_lstat); 719 TLI.setUnavailable(LibFunc_mkdir); 720 TLI.setUnavailable(LibFunc_open); 721 TLI.setUnavailable(LibFunc_opendir); 722 TLI.setUnavailable(LibFunc_pclose); 723 TLI.setUnavailable(LibFunc_popen); 724 TLI.setUnavailable(LibFunc_pread); 725 TLI.setUnavailable(LibFunc_pwrite); 726 TLI.setUnavailable(LibFunc_read); 727 TLI.setUnavailable(LibFunc_readlink); 728 TLI.setUnavailable(LibFunc_realpath); 729 TLI.setUnavailable(LibFunc_rename); 730 TLI.setUnavailable(LibFunc_rmdir); 731 TLI.setUnavailable(LibFunc_setitimer); 732 TLI.setUnavailable(LibFunc_stat); 733 TLI.setUnavailable(LibFunc_statvfs); 734 TLI.setUnavailable(LibFunc_system); 735 TLI.setUnavailable(LibFunc_times); 736 TLI.setUnavailable(LibFunc_tmpfile); 737 TLI.setUnavailable(LibFunc_unlink); 738 TLI.setUnavailable(LibFunc_uname); 739 TLI.setUnavailable(LibFunc_unsetenv); 740 TLI.setUnavailable(LibFunc_utime); 741 TLI.setUnavailable(LibFunc_utimes); 742 TLI.setUnavailable(LibFunc_valloc); 743 TLI.setUnavailable(LibFunc_write); 744 745 // Miscellaneous other functions not provided. 746 TLI.setUnavailable(LibFunc_atomic_load); 747 TLI.setUnavailable(LibFunc_atomic_store); 748 TLI.setUnavailable(LibFunc___kmpc_alloc_shared); 749 TLI.setUnavailable(LibFunc___kmpc_free_shared); 750 TLI.setUnavailable(LibFunc_dunder_strndup); 751 TLI.setUnavailable(LibFunc_bcmp); 752 TLI.setUnavailable(LibFunc_bcopy); 753 TLI.setUnavailable(LibFunc_bzero); 754 TLI.setUnavailable(LibFunc_cabs); 755 TLI.setUnavailable(LibFunc_cabsf); 756 TLI.setUnavailable(LibFunc_cabsl); 757 TLI.setUnavailable(LibFunc_ffs); 758 TLI.setUnavailable(LibFunc_flockfile); 759 TLI.setUnavailable(LibFunc_fseeko); 760 TLI.setUnavailable(LibFunc_ftello); 761 TLI.setUnavailable(LibFunc_ftrylockfile); 762 TLI.setUnavailable(LibFunc_funlockfile); 763 TLI.setUnavailable(LibFunc_htonl); 764 TLI.setUnavailable(LibFunc_htons); 765 TLI.setUnavailable(LibFunc_isascii); 766 TLI.setUnavailable(LibFunc_memccpy); 767 TLI.setUnavailable(LibFunc_mempcpy); 768 TLI.setUnavailable(LibFunc_memrchr); 769 TLI.setUnavailable(LibFunc_ntohl); 770 TLI.setUnavailable(LibFunc_ntohs); 771 TLI.setUnavailable(LibFunc_reallocf); 772 TLI.setUnavailable(LibFunc_roundeven); 773 TLI.setUnavailable(LibFunc_roundevenf); 774 TLI.setUnavailable(LibFunc_roundevenl); 775 TLI.setUnavailable(LibFunc_stpcpy); 776 TLI.setUnavailable(LibFunc_stpncpy); 777 TLI.setUnavailable(LibFunc_strlcat); 778 TLI.setUnavailable(LibFunc_strlcpy); 779 TLI.setUnavailable(LibFunc_strndup); 780 TLI.setUnavailable(LibFunc_strnlen); 781 TLI.setUnavailable(LibFunc_toascii); 782 } 783 784 // As currently implemented in clang, NVPTX code has no standard library to 785 // speak of. Headers provide a standard-ish library implementation, but many 786 // of the signatures are wrong -- for example, many libm functions are not 787 // extern "C". 788 // 789 // libdevice, an IR library provided by nvidia, is linked in by the front-end, 790 // but only used functions are provided to llvm. Moreover, most of the 791 // functions in libdevice don't map precisely to standard library functions. 792 // 793 // FIXME: Having no standard library prevents e.g. many fastmath 794 // optimizations, so this situation should be fixed. 795 if (T.isNVPTX()) { 796 TLI.disableAllFunctions(); 797 TLI.setAvailable(LibFunc_nvvm_reflect); 798 TLI.setAvailable(llvm::LibFunc_malloc); 799 TLI.setAvailable(llvm::LibFunc_free); 800 801 // TODO: We could enable the following two according to [0] but we haven't 802 // done an evaluation wrt. the performance implications. 803 // [0] 804 // https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#dynamic-global-memory-allocation-and-operations 805 // 806 // TLI.setAvailable(llvm::LibFunc_memcpy); 807 // TLI.setAvailable(llvm::LibFunc_memset); 808 809 TLI.setAvailable(llvm::LibFunc___kmpc_alloc_shared); 810 TLI.setAvailable(llvm::LibFunc___kmpc_free_shared); 811 } else { 812 TLI.setUnavailable(LibFunc_nvvm_reflect); 813 } 814 815 // These vec_malloc/free routines are only available on AIX. 816 if (!T.isOSAIX()) { 817 TLI.setUnavailable(LibFunc_vec_calloc); 818 TLI.setUnavailable(LibFunc_vec_malloc); 819 TLI.setUnavailable(LibFunc_vec_realloc); 820 TLI.setUnavailable(LibFunc_vec_free); 821 } 822 823 TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary); 824 } 825 826 TargetLibraryInfoImpl::TargetLibraryInfoImpl() { 827 // Default to everything being available. 828 memset(AvailableArray, -1, sizeof(AvailableArray)); 829 830 initialize(*this, Triple(), StandardNames); 831 } 832 833 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const Triple &T) { 834 // Default to everything being available. 835 memset(AvailableArray, -1, sizeof(AvailableArray)); 836 837 initialize(*this, T, StandardNames); 838 } 839 840 TargetLibraryInfoImpl::TargetLibraryInfoImpl(const TargetLibraryInfoImpl &TLI) 841 : CustomNames(TLI.CustomNames), ShouldExtI32Param(TLI.ShouldExtI32Param), 842 ShouldExtI32Return(TLI.ShouldExtI32Return), 843 ShouldSignExtI32Param(TLI.ShouldSignExtI32Param), 844 SizeOfInt(TLI.SizeOfInt) { 845 memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray)); 846 VectorDescs = TLI.VectorDescs; 847 ScalarDescs = TLI.ScalarDescs; 848 } 849 850 TargetLibraryInfoImpl::TargetLibraryInfoImpl(TargetLibraryInfoImpl &&TLI) 851 : CustomNames(std::move(TLI.CustomNames)), 852 ShouldExtI32Param(TLI.ShouldExtI32Param), 853 ShouldExtI32Return(TLI.ShouldExtI32Return), 854 ShouldSignExtI32Param(TLI.ShouldSignExtI32Param), 855 SizeOfInt(TLI.SizeOfInt) { 856 std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray), 857 AvailableArray); 858 VectorDescs = TLI.VectorDescs; 859 ScalarDescs = TLI.ScalarDescs; 860 } 861 862 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(const TargetLibraryInfoImpl &TLI) { 863 CustomNames = TLI.CustomNames; 864 ShouldExtI32Param = TLI.ShouldExtI32Param; 865 ShouldExtI32Return = TLI.ShouldExtI32Return; 866 ShouldSignExtI32Param = TLI.ShouldSignExtI32Param; 867 SizeOfInt = TLI.SizeOfInt; 868 memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray)); 869 return *this; 870 } 871 872 TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(TargetLibraryInfoImpl &&TLI) { 873 CustomNames = std::move(TLI.CustomNames); 874 ShouldExtI32Param = TLI.ShouldExtI32Param; 875 ShouldExtI32Return = TLI.ShouldExtI32Return; 876 ShouldSignExtI32Param = TLI.ShouldSignExtI32Param; 877 SizeOfInt = TLI.SizeOfInt; 878 std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray), 879 AvailableArray); 880 return *this; 881 } 882 883 static StringRef sanitizeFunctionName(StringRef funcName) { 884 // Filter out empty names and names containing null bytes, those can't be in 885 // our table. 886 if (funcName.empty() || funcName.contains('\0')) 887 return StringRef(); 888 889 // Check for \01 prefix that is used to mangle __asm declarations and 890 // strip it if present. 891 return GlobalValue::dropLLVMManglingEscape(funcName); 892 } 893 894 bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName, LibFunc &F) const { 895 funcName = sanitizeFunctionName(funcName); 896 if (funcName.empty()) 897 return false; 898 899 const auto *Start = std::begin(StandardNames); 900 const auto *End = std::end(StandardNames); 901 const auto *I = std::lower_bound(Start, End, funcName); 902 if (I != End && *I == funcName) { 903 F = (LibFunc)(I - Start); 904 return true; 905 } 906 return false; 907 } 908 909 bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy, 910 LibFunc F, 911 const Module &M) const { 912 // FIXME: There is really no guarantee that sizeof(size_t) is equal to 913 // sizeof(int*) for every target. So the assumption used here to derive the 914 // SizeTBits based on the size of an integer pointer in address space zero 915 // isn't always valid. 916 unsigned SizeTBits = M.getDataLayout().getPointerSizeInBits(/*AddrSpace=*/0); 917 unsigned NumParams = FTy.getNumParams(); 918 919 switch (F) { 920 case LibFunc_execl: 921 case LibFunc_execlp: 922 case LibFunc_execle: 923 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 924 FTy.getParamType(1)->isPointerTy() && 925 FTy.getReturnType()->isIntegerTy(32)); 926 case LibFunc_execv: 927 case LibFunc_execvp: 928 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 929 FTy.getParamType(1)->isPointerTy() && 930 FTy.getReturnType()->isIntegerTy(32)); 931 case LibFunc_execvP: 932 case LibFunc_execvpe: 933 case LibFunc_execve: 934 return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && 935 FTy.getParamType(1)->isPointerTy() && 936 FTy.getParamType(2)->isPointerTy() && 937 FTy.getReturnType()->isIntegerTy(32)); 938 case LibFunc_strlen_chk: 939 --NumParams; 940 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 941 return false; 942 LLVM_FALLTHROUGH; 943 case LibFunc_strlen: 944 return NumParams == 1 && FTy.getParamType(0)->isPointerTy() && 945 FTy.getReturnType()->isIntegerTy(SizeTBits); 946 947 case LibFunc_strchr: 948 case LibFunc_strrchr: 949 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 950 FTy.getParamType(0) == FTy.getReturnType() && 951 FTy.getParamType(1)->isIntegerTy()); 952 953 case LibFunc_strtol: 954 case LibFunc_strtod: 955 case LibFunc_strtof: 956 case LibFunc_strtoul: 957 case LibFunc_strtoll: 958 case LibFunc_strtold: 959 case LibFunc_strtoull: 960 return ((NumParams == 2 || NumParams == 3) && 961 FTy.getParamType(0)->isPointerTy() && 962 FTy.getParamType(1)->isPointerTy()); 963 case LibFunc_strcat_chk: 964 --NumParams; 965 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 966 return false; 967 LLVM_FALLTHROUGH; 968 case LibFunc_strcat: 969 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 970 FTy.getParamType(0) == FTy.getReturnType() && 971 FTy.getParamType(1) == FTy.getReturnType()); 972 973 case LibFunc_strncat_chk: 974 --NumParams; 975 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 976 return false; 977 LLVM_FALLTHROUGH; 978 case LibFunc_strncat: 979 return (NumParams == 3 && FTy.getReturnType()->isPointerTy() && 980 FTy.getParamType(0) == FTy.getReturnType() && 981 FTy.getParamType(1) == FTy.getReturnType() && 982 FTy.getParamType(2)->isIntegerTy(SizeTBits)); 983 984 case LibFunc_strcpy_chk: 985 case LibFunc_stpcpy_chk: 986 --NumParams; 987 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 988 return false; 989 LLVM_FALLTHROUGH; 990 case LibFunc_strcpy: 991 case LibFunc_stpcpy: 992 return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(0) && 993 FTy.getParamType(0) == FTy.getParamType(1) && 994 FTy.getParamType(0)->isPointerTy()); 995 996 case LibFunc_strlcat_chk: 997 case LibFunc_strlcpy_chk: 998 --NumParams; 999 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 1000 return false; 1001 LLVM_FALLTHROUGH; 1002 case LibFunc_strlcat: 1003 case LibFunc_strlcpy: 1004 return NumParams == 3 && FTy.getReturnType()->isIntegerTy(SizeTBits) && 1005 FTy.getParamType(0)->isPointerTy() && 1006 FTy.getParamType(1)->isPointerTy() && 1007 FTy.getParamType(2)->isIntegerTy(SizeTBits); 1008 1009 case LibFunc_strncpy_chk: 1010 case LibFunc_stpncpy_chk: 1011 --NumParams; 1012 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 1013 return false; 1014 LLVM_FALLTHROUGH; 1015 case LibFunc_strncpy: 1016 case LibFunc_stpncpy: 1017 return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) && 1018 FTy.getParamType(0) == FTy.getParamType(1) && 1019 FTy.getParamType(0)->isPointerTy() && 1020 FTy.getParamType(2)->isIntegerTy(SizeTBits)); 1021 1022 case LibFunc_strxfrm: 1023 return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && 1024 FTy.getParamType(1)->isPointerTy()); 1025 1026 case LibFunc_strcmp: 1027 return (NumParams == 2 && FTy.getReturnType()->isIntegerTy(32) && 1028 FTy.getParamType(0)->isPointerTy() && 1029 FTy.getParamType(0) == FTy.getParamType(1)); 1030 1031 case LibFunc_strncmp: 1032 return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) && 1033 FTy.getParamType(0)->isPointerTy() && 1034 FTy.getParamType(0) == FTy.getParamType(1) && 1035 FTy.getParamType(2)->isIntegerTy(SizeTBits)); 1036 1037 case LibFunc_strspn: 1038 case LibFunc_strcspn: 1039 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 1040 FTy.getParamType(0) == FTy.getParamType(1) && 1041 FTy.getReturnType()->isIntegerTy()); 1042 1043 case LibFunc_strcoll: 1044 case LibFunc_strcasecmp: 1045 case LibFunc_strncasecmp: 1046 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 1047 FTy.getParamType(1)->isPointerTy()); 1048 1049 case LibFunc_strstr: 1050 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 1051 FTy.getParamType(0)->isPointerTy() && 1052 FTy.getParamType(1)->isPointerTy()); 1053 1054 case LibFunc_strpbrk: 1055 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 1056 FTy.getReturnType() == FTy.getParamType(0) && 1057 FTy.getParamType(0) == FTy.getParamType(1)); 1058 1059 case LibFunc_strtok: 1060 case LibFunc_strtok_r: 1061 return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy()); 1062 case LibFunc_scanf: 1063 case LibFunc_setbuf: 1064 case LibFunc_setvbuf: 1065 return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy()); 1066 case LibFunc_strdup: 1067 case LibFunc_strndup: 1068 return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() && 1069 FTy.getParamType(0)->isPointerTy()); 1070 case LibFunc_sscanf: 1071 case LibFunc_stat: 1072 case LibFunc_statvfs: 1073 case LibFunc_siprintf: 1074 case LibFunc_small_sprintf: 1075 case LibFunc_sprintf: 1076 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 1077 FTy.getParamType(1)->isPointerTy() && 1078 FTy.getReturnType()->isIntegerTy(32)); 1079 1080 case LibFunc_sprintf_chk: 1081 return NumParams == 4 && FTy.getParamType(0)->isPointerTy() && 1082 FTy.getParamType(1)->isIntegerTy(32) && 1083 FTy.getParamType(2)->isIntegerTy(SizeTBits) && 1084 FTy.getParamType(3)->isPointerTy() && 1085 FTy.getReturnType()->isIntegerTy(32); 1086 1087 case LibFunc_snprintf: 1088 return NumParams == 3 && FTy.getParamType(0)->isPointerTy() && 1089 FTy.getParamType(1)->isIntegerTy(SizeTBits) && 1090 FTy.getParamType(2)->isPointerTy() && 1091 FTy.getReturnType()->isIntegerTy(32); 1092 1093 case LibFunc_snprintf_chk: 1094 return NumParams == 5 && FTy.getParamType(0)->isPointerTy() && 1095 FTy.getParamType(1)->isIntegerTy(SizeTBits) && 1096 FTy.getParamType(2)->isIntegerTy(32) && 1097 FTy.getParamType(3)->isIntegerTy(SizeTBits) && 1098 FTy.getParamType(4)->isPointerTy() && 1099 FTy.getReturnType()->isIntegerTy(32); 1100 1101 case LibFunc_setitimer: 1102 return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() && 1103 FTy.getParamType(2)->isPointerTy()); 1104 case LibFunc_system: 1105 return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); 1106 case LibFunc___kmpc_alloc_shared: 1107 case LibFunc_malloc: 1108 case LibFunc_vec_malloc: 1109 return (NumParams == 1 && FTy.getReturnType()->isPointerTy()); 1110 case LibFunc_memcmp: 1111 return NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) && 1112 FTy.getParamType(0)->isPointerTy() && 1113 FTy.getParamType(1)->isPointerTy() && 1114 FTy.getParamType(2)->isIntegerTy(SizeTBits); 1115 1116 case LibFunc_memchr: 1117 case LibFunc_memrchr: 1118 return (NumParams == 3 && FTy.getReturnType()->isPointerTy() && 1119 FTy.getReturnType() == FTy.getParamType(0) && 1120 FTy.getParamType(1)->isIntegerTy(32) && 1121 FTy.getParamType(2)->isIntegerTy(SizeTBits)); 1122 case LibFunc_modf: 1123 case LibFunc_modff: 1124 case LibFunc_modfl: 1125 return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy()); 1126 1127 case LibFunc_memcpy_chk: 1128 case LibFunc_mempcpy_chk: 1129 case LibFunc_memmove_chk: 1130 --NumParams; 1131 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 1132 return false; 1133 LLVM_FALLTHROUGH; 1134 case LibFunc_memcpy: 1135 case LibFunc_mempcpy: 1136 case LibFunc_memmove: 1137 return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) && 1138 FTy.getParamType(0)->isPointerTy() && 1139 FTy.getParamType(1)->isPointerTy() && 1140 FTy.getParamType(2)->isIntegerTy(SizeTBits)); 1141 1142 case LibFunc_memset_chk: 1143 --NumParams; 1144 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 1145 return false; 1146 LLVM_FALLTHROUGH; 1147 case LibFunc_memset: 1148 return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) && 1149 FTy.getParamType(0)->isPointerTy() && 1150 FTy.getParamType(1)->isIntegerTy() && 1151 FTy.getParamType(2)->isIntegerTy(SizeTBits)); 1152 1153 case LibFunc_memccpy_chk: 1154 --NumParams; 1155 if (!FTy.getParamType(NumParams)->isIntegerTy(SizeTBits)) 1156 return false; 1157 LLVM_FALLTHROUGH; 1158 case LibFunc_memccpy: 1159 return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy()); 1160 case LibFunc_memalign: 1161 return (FTy.getReturnType()->isPointerTy()); 1162 case LibFunc_realloc: 1163 case LibFunc_reallocf: 1164 case LibFunc_vec_realloc: 1165 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 1166 FTy.getParamType(0) == FTy.getReturnType() && 1167 FTy.getParamType(1)->isIntegerTy(SizeTBits)); 1168 case LibFunc_read: 1169 return (NumParams == 3 && FTy.getParamType(1)->isPointerTy()); 1170 case LibFunc_rewind: 1171 case LibFunc_rmdir: 1172 case LibFunc_remove: 1173 case LibFunc_realpath: 1174 return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy()); 1175 case LibFunc_rename: 1176 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 1177 FTy.getParamType(1)->isPointerTy()); 1178 case LibFunc_readlink: 1179 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 1180 FTy.getParamType(1)->isPointerTy()); 1181 case LibFunc_write: 1182 return (NumParams == 3 && FTy.getParamType(1)->isPointerTy()); 1183 case LibFunc_aligned_alloc: 1184 return (NumParams == 2 && FTy.getReturnType()->isPointerTy()); 1185 case LibFunc_bcopy: 1186 case LibFunc_bcmp: 1187 return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && 1188 FTy.getParamType(1)->isPointerTy()); 1189 case LibFunc_bzero: 1190 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy()); 1191 case LibFunc_calloc: 1192 case LibFunc_vec_calloc: 1193 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 1194 FTy.getParamType(0) == FTy.getParamType(1)); 1195 1196 case LibFunc_atof: 1197 case LibFunc_atoi: 1198 case LibFunc_atol: 1199 case LibFunc_atoll: 1200 case LibFunc_ferror: 1201 case LibFunc_getenv: 1202 case LibFunc_getpwnam: 1203 case LibFunc_iprintf: 1204 case LibFunc_small_printf: 1205 case LibFunc_pclose: 1206 case LibFunc_perror: 1207 case LibFunc_printf: 1208 case LibFunc_puts: 1209 case LibFunc_uname: 1210 case LibFunc_under_IO_getc: 1211 case LibFunc_unlink: 1212 case LibFunc_unsetenv: 1213 return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); 1214 1215 case LibFunc_access: 1216 case LibFunc_chmod: 1217 case LibFunc_chown: 1218 case LibFunc_clearerr: 1219 case LibFunc_closedir: 1220 case LibFunc_ctermid: 1221 case LibFunc_fclose: 1222 case LibFunc_feof: 1223 case LibFunc_fflush: 1224 case LibFunc_fgetc: 1225 case LibFunc_fgetc_unlocked: 1226 case LibFunc_fileno: 1227 case LibFunc_flockfile: 1228 case LibFunc_free: 1229 case LibFunc_fseek: 1230 case LibFunc_fseeko64: 1231 case LibFunc_fseeko: 1232 case LibFunc_fsetpos: 1233 case LibFunc_ftell: 1234 case LibFunc_ftello64: 1235 case LibFunc_ftello: 1236 case LibFunc_ftrylockfile: 1237 case LibFunc_funlockfile: 1238 case LibFunc_getc: 1239 case LibFunc_getc_unlocked: 1240 case LibFunc_getlogin_r: 1241 case LibFunc_mkdir: 1242 case LibFunc_mktime: 1243 case LibFunc_times: 1244 case LibFunc_vec_free: 1245 return (NumParams != 0 && FTy.getParamType(0)->isPointerTy()); 1246 case LibFunc___kmpc_free_shared: 1247 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 1248 FTy.getParamType(1)->isIntegerTy(SizeTBits)); 1249 1250 case LibFunc_fopen: 1251 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 1252 FTy.getParamType(0)->isPointerTy() && 1253 FTy.getParamType(1)->isPointerTy()); 1254 case LibFunc_fork: 1255 return (NumParams == 0 && FTy.getReturnType()->isIntegerTy(32)); 1256 case LibFunc_fdopen: 1257 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 1258 FTy.getParamType(1)->isPointerTy()); 1259 case LibFunc_fputc: 1260 case LibFunc_fputc_unlocked: 1261 case LibFunc_fstat: 1262 case LibFunc_frexp: 1263 case LibFunc_frexpf: 1264 case LibFunc_frexpl: 1265 case LibFunc_fstatvfs: 1266 return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); 1267 case LibFunc_fgets: 1268 case LibFunc_fgets_unlocked: 1269 return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && 1270 FTy.getParamType(2)->isPointerTy()); 1271 case LibFunc_fread: 1272 case LibFunc_fread_unlocked: 1273 return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() && 1274 FTy.getParamType(3)->isPointerTy()); 1275 case LibFunc_fwrite: 1276 case LibFunc_fwrite_unlocked: 1277 return (NumParams == 4 && FTy.getReturnType()->isIntegerTy() && 1278 FTy.getParamType(0)->isPointerTy() && 1279 FTy.getParamType(1)->isIntegerTy() && 1280 FTy.getParamType(2)->isIntegerTy() && 1281 FTy.getParamType(3)->isPointerTy()); 1282 case LibFunc_fputs: 1283 case LibFunc_fputs_unlocked: 1284 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 1285 FTy.getParamType(1)->isPointerTy()); 1286 case LibFunc_fscanf: 1287 case LibFunc_fiprintf: 1288 case LibFunc_small_fprintf: 1289 case LibFunc_fprintf: 1290 return (NumParams >= 2 && FTy.getReturnType()->isIntegerTy() && 1291 FTy.getParamType(0)->isPointerTy() && 1292 FTy.getParamType(1)->isPointerTy()); 1293 case LibFunc_fgetpos: 1294 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 1295 FTy.getParamType(1)->isPointerTy()); 1296 case LibFunc_getchar: 1297 case LibFunc_getchar_unlocked: 1298 return (NumParams == 0 && FTy.getReturnType()->isIntegerTy()); 1299 case LibFunc_gets: 1300 return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); 1301 case LibFunc_getitimer: 1302 return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); 1303 case LibFunc_ungetc: 1304 return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); 1305 case LibFunc_utime: 1306 case LibFunc_utimes: 1307 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 1308 FTy.getParamType(1)->isPointerTy()); 1309 case LibFunc_putc: 1310 case LibFunc_putc_unlocked: 1311 return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); 1312 case LibFunc_pread: 1313 case LibFunc_pwrite: 1314 return (NumParams == 4 && FTy.getParamType(1)->isPointerTy()); 1315 case LibFunc_popen: 1316 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 1317 FTy.getParamType(0)->isPointerTy() && 1318 FTy.getParamType(1)->isPointerTy()); 1319 case LibFunc_vscanf: 1320 return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); 1321 case LibFunc_vsscanf: 1322 return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() && 1323 FTy.getParamType(2)->isPointerTy()); 1324 case LibFunc_vfscanf: 1325 return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() && 1326 FTy.getParamType(2)->isPointerTy()); 1327 case LibFunc_valloc: 1328 return (FTy.getReturnType()->isPointerTy()); 1329 case LibFunc_vprintf: 1330 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy()); 1331 case LibFunc_vfprintf: 1332 case LibFunc_vsprintf: 1333 return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && 1334 FTy.getParamType(1)->isPointerTy()); 1335 case LibFunc_vsprintf_chk: 1336 return NumParams == 5 && FTy.getParamType(0)->isPointerTy() && 1337 FTy.getParamType(1)->isIntegerTy(32) && 1338 FTy.getParamType(2)->isIntegerTy(SizeTBits) && FTy.getParamType(3)->isPointerTy(); 1339 case LibFunc_vsnprintf: 1340 return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() && 1341 FTy.getParamType(2)->isPointerTy()); 1342 case LibFunc_vsnprintf_chk: 1343 return NumParams == 6 && FTy.getParamType(0)->isPointerTy() && 1344 FTy.getParamType(2)->isIntegerTy(32) && 1345 FTy.getParamType(3)->isIntegerTy(SizeTBits) && FTy.getParamType(4)->isPointerTy(); 1346 case LibFunc_open: 1347 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy()); 1348 case LibFunc_opendir: 1349 return (NumParams == 1 && FTy.getReturnType()->isPointerTy() && 1350 FTy.getParamType(0)->isPointerTy()); 1351 case LibFunc_tmpfile: 1352 return (FTy.getReturnType()->isPointerTy()); 1353 case LibFunc_htonl: 1354 case LibFunc_ntohl: 1355 return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) && 1356 FTy.getReturnType() == FTy.getParamType(0)); 1357 case LibFunc_htons: 1358 case LibFunc_ntohs: 1359 return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(16) && 1360 FTy.getReturnType() == FTy.getParamType(0)); 1361 case LibFunc_lstat: 1362 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 1363 FTy.getParamType(1)->isPointerTy()); 1364 case LibFunc_lchown: 1365 return (NumParams == 3 && FTy.getParamType(0)->isPointerTy()); 1366 case LibFunc_qsort: 1367 return (NumParams == 4 && FTy.getParamType(3)->isPointerTy()); 1368 case LibFunc_dunder_strdup: 1369 case LibFunc_dunder_strndup: 1370 return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() && 1371 FTy.getParamType(0)->isPointerTy()); 1372 case LibFunc_dunder_strtok_r: 1373 return (NumParams == 3 && FTy.getParamType(1)->isPointerTy()); 1374 case LibFunc_under_IO_putc: 1375 return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); 1376 case LibFunc_dunder_isoc99_scanf: 1377 return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy()); 1378 case LibFunc_stat64: 1379 case LibFunc_lstat64: 1380 case LibFunc_statvfs64: 1381 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 1382 FTy.getParamType(1)->isPointerTy()); 1383 case LibFunc_dunder_isoc99_sscanf: 1384 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && 1385 FTy.getParamType(1)->isPointerTy()); 1386 case LibFunc_fopen64: 1387 return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && 1388 FTy.getParamType(0)->isPointerTy() && 1389 FTy.getParamType(1)->isPointerTy()); 1390 case LibFunc_tmpfile64: 1391 return (FTy.getReturnType()->isPointerTy()); 1392 case LibFunc_fstat64: 1393 case LibFunc_fstatvfs64: 1394 return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); 1395 case LibFunc_open64: 1396 return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy()); 1397 case LibFunc_gettimeofday: 1398 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && 1399 FTy.getParamType(1)->isPointerTy()); 1400 1401 // new(unsigned int); 1402 case LibFunc_Znwj: 1403 // new(unsigned long); 1404 case LibFunc_Znwm: 1405 // new[](unsigned int); 1406 case LibFunc_Znaj: 1407 // new[](unsigned long); 1408 case LibFunc_Znam: 1409 // new(unsigned int); 1410 case LibFunc_msvc_new_int: 1411 // new(unsigned long long); 1412 case LibFunc_msvc_new_longlong: 1413 // new[](unsigned int); 1414 case LibFunc_msvc_new_array_int: 1415 // new[](unsigned long long); 1416 case LibFunc_msvc_new_array_longlong: 1417 return (NumParams == 1 && FTy.getReturnType()->isPointerTy()); 1418 1419 // new(unsigned int, nothrow); 1420 case LibFunc_ZnwjRKSt9nothrow_t: 1421 // new(unsigned long, nothrow); 1422 case LibFunc_ZnwmRKSt9nothrow_t: 1423 // new[](unsigned int, nothrow); 1424 case LibFunc_ZnajRKSt9nothrow_t: 1425 // new[](unsigned long, nothrow); 1426 case LibFunc_ZnamRKSt9nothrow_t: 1427 // new(unsigned int, nothrow); 1428 case LibFunc_msvc_new_int_nothrow: 1429 // new(unsigned long long, nothrow); 1430 case LibFunc_msvc_new_longlong_nothrow: 1431 // new[](unsigned int, nothrow); 1432 case LibFunc_msvc_new_array_int_nothrow: 1433 // new[](unsigned long long, nothrow); 1434 case LibFunc_msvc_new_array_longlong_nothrow: 1435 // new(unsigned int, align_val_t) 1436 case LibFunc_ZnwjSt11align_val_t: 1437 // new(unsigned long, align_val_t) 1438 case LibFunc_ZnwmSt11align_val_t: 1439 // new[](unsigned int, align_val_t) 1440 case LibFunc_ZnajSt11align_val_t: 1441 // new[](unsigned long, align_val_t) 1442 case LibFunc_ZnamSt11align_val_t: 1443 return (NumParams == 2 && FTy.getReturnType()->isPointerTy()); 1444 1445 // new(unsigned int, align_val_t, nothrow) 1446 case LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t: 1447 // new(unsigned long, align_val_t, nothrow) 1448 case LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t: 1449 // new[](unsigned int, align_val_t, nothrow) 1450 case LibFunc_ZnajSt11align_val_tRKSt9nothrow_t: 1451 // new[](unsigned long, align_val_t, nothrow) 1452 case LibFunc_ZnamSt11align_val_tRKSt9nothrow_t: 1453 return (NumParams == 3 && FTy.getReturnType()->isPointerTy()); 1454 1455 // void operator delete[](void*); 1456 case LibFunc_ZdaPv: 1457 // void operator delete(void*); 1458 case LibFunc_ZdlPv: 1459 // void operator delete[](void*); 1460 case LibFunc_msvc_delete_array_ptr32: 1461 // void operator delete[](void*); 1462 case LibFunc_msvc_delete_array_ptr64: 1463 // void operator delete(void*); 1464 case LibFunc_msvc_delete_ptr32: 1465 // void operator delete(void*); 1466 case LibFunc_msvc_delete_ptr64: 1467 return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); 1468 1469 // void operator delete[](void*, nothrow); 1470 case LibFunc_ZdaPvRKSt9nothrow_t: 1471 // void operator delete[](void*, unsigned int); 1472 case LibFunc_ZdaPvj: 1473 // void operator delete[](void*, unsigned long); 1474 case LibFunc_ZdaPvm: 1475 // void operator delete(void*, nothrow); 1476 case LibFunc_ZdlPvRKSt9nothrow_t: 1477 // void operator delete(void*, unsigned int); 1478 case LibFunc_ZdlPvj: 1479 // void operator delete(void*, unsigned long); 1480 case LibFunc_ZdlPvm: 1481 // void operator delete(void*, align_val_t) 1482 case LibFunc_ZdlPvSt11align_val_t: 1483 // void operator delete[](void*, align_val_t) 1484 case LibFunc_ZdaPvSt11align_val_t: 1485 // void operator delete[](void*, unsigned int); 1486 case LibFunc_msvc_delete_array_ptr32_int: 1487 // void operator delete[](void*, nothrow); 1488 case LibFunc_msvc_delete_array_ptr32_nothrow: 1489 // void operator delete[](void*, unsigned long long); 1490 case LibFunc_msvc_delete_array_ptr64_longlong: 1491 // void operator delete[](void*, nothrow); 1492 case LibFunc_msvc_delete_array_ptr64_nothrow: 1493 // void operator delete(void*, unsigned int); 1494 case LibFunc_msvc_delete_ptr32_int: 1495 // void operator delete(void*, nothrow); 1496 case LibFunc_msvc_delete_ptr32_nothrow: 1497 // void operator delete(void*, unsigned long long); 1498 case LibFunc_msvc_delete_ptr64_longlong: 1499 // void operator delete(void*, nothrow); 1500 case LibFunc_msvc_delete_ptr64_nothrow: 1501 return (NumParams == 2 && FTy.getParamType(0)->isPointerTy()); 1502 1503 // void operator delete(void*, align_val_t, nothrow) 1504 case LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t: 1505 // void operator delete[](void*, align_val_t, nothrow) 1506 case LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t: 1507 // void operator delete(void*, unsigned int, align_val_t) 1508 case LibFunc_ZdlPvjSt11align_val_t: 1509 // void operator delete(void*, unsigned long, align_val_t) 1510 case LibFunc_ZdlPvmSt11align_val_t: 1511 // void operator delete[](void*, unsigned int, align_val_t); 1512 case LibFunc_ZdaPvjSt11align_val_t: 1513 // void operator delete[](void*, unsigned long, align_val_t); 1514 case LibFunc_ZdaPvmSt11align_val_t: 1515 return (NumParams == 3 && FTy.getParamType(0)->isPointerTy()); 1516 1517 // void __atomic_load(size_t, void *, void *, int) 1518 case LibFunc_atomic_load: 1519 // void __atomic_store(size_t, void *, void *, int) 1520 case LibFunc_atomic_store: 1521 return (NumParams == 4 && FTy.getParamType(0)->isIntegerTy() && 1522 FTy.getParamType(1)->isPointerTy() && 1523 FTy.getParamType(2)->isPointerTy() && 1524 FTy.getParamType(3)->isIntegerTy()); 1525 1526 case LibFunc_memset_pattern16: 1527 return (!FTy.isVarArg() && NumParams == 3 && 1528 FTy.getParamType(0)->isPointerTy() && 1529 FTy.getParamType(1)->isPointerTy() && 1530 FTy.getParamType(2)->isIntegerTy()); 1531 1532 case LibFunc_cxa_guard_abort: 1533 case LibFunc_cxa_guard_acquire: 1534 case LibFunc_cxa_guard_release: 1535 case LibFunc_nvvm_reflect: 1536 return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); 1537 1538 case LibFunc_sincospi_stret: 1539 case LibFunc_sincospif_stret: 1540 return (NumParams == 1 && FTy.getParamType(0)->isFloatingPointTy()); 1541 1542 case LibFunc_acos: 1543 case LibFunc_acos_finite: 1544 case LibFunc_acosf: 1545 case LibFunc_acosf_finite: 1546 case LibFunc_acosh: 1547 case LibFunc_acosh_finite: 1548 case LibFunc_acoshf: 1549 case LibFunc_acoshf_finite: 1550 case LibFunc_acoshl: 1551 case LibFunc_acoshl_finite: 1552 case LibFunc_acosl: 1553 case LibFunc_acosl_finite: 1554 case LibFunc_asin: 1555 case LibFunc_asin_finite: 1556 case LibFunc_asinf: 1557 case LibFunc_asinf_finite: 1558 case LibFunc_asinh: 1559 case LibFunc_asinhf: 1560 case LibFunc_asinhl: 1561 case LibFunc_asinl: 1562 case LibFunc_asinl_finite: 1563 case LibFunc_atan: 1564 case LibFunc_atanf: 1565 case LibFunc_atanh: 1566 case LibFunc_atanh_finite: 1567 case LibFunc_atanhf: 1568 case LibFunc_atanhf_finite: 1569 case LibFunc_atanhl: 1570 case LibFunc_atanhl_finite: 1571 case LibFunc_atanl: 1572 case LibFunc_cbrt: 1573 case LibFunc_cbrtf: 1574 case LibFunc_cbrtl: 1575 case LibFunc_ceil: 1576 case LibFunc_ceilf: 1577 case LibFunc_ceill: 1578 case LibFunc_cos: 1579 case LibFunc_cosf: 1580 case LibFunc_cosh: 1581 case LibFunc_cosh_finite: 1582 case LibFunc_coshf: 1583 case LibFunc_coshf_finite: 1584 case LibFunc_coshl: 1585 case LibFunc_coshl_finite: 1586 case LibFunc_cosl: 1587 case LibFunc_exp10: 1588 case LibFunc_exp10_finite: 1589 case LibFunc_exp10f: 1590 case LibFunc_exp10f_finite: 1591 case LibFunc_exp10l: 1592 case LibFunc_exp10l_finite: 1593 case LibFunc_exp2: 1594 case LibFunc_exp2_finite: 1595 case LibFunc_exp2f: 1596 case LibFunc_exp2f_finite: 1597 case LibFunc_exp2l: 1598 case LibFunc_exp2l_finite: 1599 case LibFunc_exp: 1600 case LibFunc_exp_finite: 1601 case LibFunc_expf: 1602 case LibFunc_expf_finite: 1603 case LibFunc_expl: 1604 case LibFunc_expl_finite: 1605 case LibFunc_expm1: 1606 case LibFunc_expm1f: 1607 case LibFunc_expm1l: 1608 case LibFunc_fabs: 1609 case LibFunc_fabsf: 1610 case LibFunc_fabsl: 1611 case LibFunc_floor: 1612 case LibFunc_floorf: 1613 case LibFunc_floorl: 1614 case LibFunc_log10: 1615 case LibFunc_log10_finite: 1616 case LibFunc_log10f: 1617 case LibFunc_log10f_finite: 1618 case LibFunc_log10l: 1619 case LibFunc_log10l_finite: 1620 case LibFunc_log1p: 1621 case LibFunc_log1pf: 1622 case LibFunc_log1pl: 1623 case LibFunc_log2: 1624 case LibFunc_log2_finite: 1625 case LibFunc_log2f: 1626 case LibFunc_log2f_finite: 1627 case LibFunc_log2l: 1628 case LibFunc_log2l_finite: 1629 case LibFunc_log: 1630 case LibFunc_log_finite: 1631 case LibFunc_logb: 1632 case LibFunc_logbf: 1633 case LibFunc_logbl: 1634 case LibFunc_logf: 1635 case LibFunc_logf_finite: 1636 case LibFunc_logl: 1637 case LibFunc_logl_finite: 1638 case LibFunc_nearbyint: 1639 case LibFunc_nearbyintf: 1640 case LibFunc_nearbyintl: 1641 case LibFunc_rint: 1642 case LibFunc_rintf: 1643 case LibFunc_rintl: 1644 case LibFunc_round: 1645 case LibFunc_roundf: 1646 case LibFunc_roundl: 1647 case LibFunc_roundeven: 1648 case LibFunc_roundevenf: 1649 case LibFunc_roundevenl: 1650 case LibFunc_sin: 1651 case LibFunc_sinf: 1652 case LibFunc_sinh: 1653 case LibFunc_sinh_finite: 1654 case LibFunc_sinhf: 1655 case LibFunc_sinhf_finite: 1656 case LibFunc_sinhl: 1657 case LibFunc_sinhl_finite: 1658 case LibFunc_sinl: 1659 case LibFunc_sqrt: 1660 case LibFunc_sqrt_finite: 1661 case LibFunc_sqrtf: 1662 case LibFunc_sqrtf_finite: 1663 case LibFunc_sqrtl: 1664 case LibFunc_sqrtl_finite: 1665 case LibFunc_tan: 1666 case LibFunc_tanf: 1667 case LibFunc_tanh: 1668 case LibFunc_tanhf: 1669 case LibFunc_tanhl: 1670 case LibFunc_tanl: 1671 case LibFunc_trunc: 1672 case LibFunc_truncf: 1673 case LibFunc_truncl: 1674 return (NumParams == 1 && FTy.getReturnType()->isFloatingPointTy() && 1675 FTy.getReturnType() == FTy.getParamType(0)); 1676 1677 case LibFunc_atan2: 1678 case LibFunc_atan2_finite: 1679 case LibFunc_atan2f: 1680 case LibFunc_atan2f_finite: 1681 case LibFunc_atan2l: 1682 case LibFunc_atan2l_finite: 1683 case LibFunc_fmin: 1684 case LibFunc_fminf: 1685 case LibFunc_fminl: 1686 case LibFunc_fmax: 1687 case LibFunc_fmaxf: 1688 case LibFunc_fmaxl: 1689 case LibFunc_fmod: 1690 case LibFunc_fmodf: 1691 case LibFunc_fmodl: 1692 case LibFunc_remainder: 1693 case LibFunc_remainderf: 1694 case LibFunc_remainderl: 1695 case LibFunc_copysign: 1696 case LibFunc_copysignf: 1697 case LibFunc_copysignl: 1698 case LibFunc_pow: 1699 case LibFunc_pow_finite: 1700 case LibFunc_powf: 1701 case LibFunc_powf_finite: 1702 case LibFunc_powl: 1703 case LibFunc_powl_finite: 1704 return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() && 1705 FTy.getReturnType() == FTy.getParamType(0) && 1706 FTy.getReturnType() == FTy.getParamType(1)); 1707 1708 case LibFunc_ldexp: 1709 case LibFunc_ldexpf: 1710 case LibFunc_ldexpl: 1711 return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() && 1712 FTy.getReturnType() == FTy.getParamType(0) && 1713 FTy.getParamType(1)->isIntegerTy(getIntSize())); 1714 1715 case LibFunc_ffs: 1716 case LibFunc_ffsl: 1717 case LibFunc_ffsll: 1718 case LibFunc_fls: 1719 case LibFunc_flsl: 1720 case LibFunc_flsll: 1721 return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) && 1722 FTy.getParamType(0)->isIntegerTy()); 1723 1724 case LibFunc_isdigit: 1725 case LibFunc_isascii: 1726 case LibFunc_toascii: 1727 case LibFunc_putchar: 1728 case LibFunc_putchar_unlocked: 1729 return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) && 1730 FTy.getReturnType() == FTy.getParamType(0)); 1731 1732 case LibFunc_abs: 1733 case LibFunc_labs: 1734 case LibFunc_llabs: 1735 return (NumParams == 1 && FTy.getReturnType()->isIntegerTy() && 1736 FTy.getReturnType() == FTy.getParamType(0)); 1737 1738 case LibFunc_cxa_atexit: 1739 return (NumParams == 3 && FTy.getReturnType()->isIntegerTy() && 1740 FTy.getParamType(0)->isPointerTy() && 1741 FTy.getParamType(1)->isPointerTy() && 1742 FTy.getParamType(2)->isPointerTy()); 1743 1744 case LibFunc_sinpi: 1745 case LibFunc_cospi: 1746 return (NumParams == 1 && FTy.getReturnType()->isDoubleTy() && 1747 FTy.getReturnType() == FTy.getParamType(0)); 1748 1749 case LibFunc_sinpif: 1750 case LibFunc_cospif: 1751 return (NumParams == 1 && FTy.getReturnType()->isFloatTy() && 1752 FTy.getReturnType() == FTy.getParamType(0)); 1753 1754 case LibFunc_strnlen: 1755 return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(1) && 1756 FTy.getParamType(0)->isPointerTy() && 1757 FTy.getParamType(1)->isIntegerTy(SizeTBits)); 1758 1759 case LibFunc_posix_memalign: 1760 return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) && 1761 FTy.getParamType(0)->isPointerTy() && 1762 FTy.getParamType(1)->isIntegerTy(SizeTBits) && 1763 FTy.getParamType(2)->isIntegerTy(SizeTBits)); 1764 1765 case LibFunc_wcslen: 1766 return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() && 1767 FTy.getReturnType()->isIntegerTy()); 1768 1769 case LibFunc_cabs: 1770 case LibFunc_cabsf: 1771 case LibFunc_cabsl: { 1772 Type* RetTy = FTy.getReturnType(); 1773 if (!RetTy->isFloatingPointTy()) 1774 return false; 1775 1776 // NOTE: These prototypes are target specific and currently support 1777 // "complex" passed as an array or discrete real & imaginary parameters. 1778 // Add other calling conventions to enable libcall optimizations. 1779 if (NumParams == 1) 1780 return (FTy.getParamType(0)->isArrayTy() && 1781 FTy.getParamType(0)->getArrayNumElements() == 2 && 1782 FTy.getParamType(0)->getArrayElementType() == RetTy); 1783 else if (NumParams == 2) 1784 return (FTy.getParamType(0) == RetTy && FTy.getParamType(1) == RetTy); 1785 else 1786 return false; 1787 } 1788 case LibFunc::NumLibFuncs: 1789 case LibFunc::NotLibFunc: 1790 break; 1791 } 1792 1793 llvm_unreachable("Invalid libfunc"); 1794 } 1795 1796 bool TargetLibraryInfoImpl::getLibFunc(const Function &FDecl, 1797 LibFunc &F) const { 1798 // Intrinsics don't overlap w/libcalls; if our module has a large number of 1799 // intrinsics, this ends up being an interesting compile time win since we 1800 // avoid string normalization and comparison. 1801 if (FDecl.isIntrinsic()) return false; 1802 1803 const Module *M = FDecl.getParent(); 1804 assert(M && "Expecting FDecl to be connected to a Module."); 1805 1806 return getLibFunc(FDecl.getName(), F) && 1807 isValidProtoForLibFunc(*FDecl.getFunctionType(), F, *M); 1808 } 1809 1810 void TargetLibraryInfoImpl::disableAllFunctions() { 1811 memset(AvailableArray, 0, sizeof(AvailableArray)); 1812 } 1813 1814 static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) { 1815 return LHS.ScalarFnName < RHS.ScalarFnName; 1816 } 1817 1818 static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) { 1819 return LHS.VectorFnName < RHS.VectorFnName; 1820 } 1821 1822 static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) { 1823 return LHS.ScalarFnName < S; 1824 } 1825 1826 void TargetLibraryInfoImpl::addVectorizableFunctions(ArrayRef<VecDesc> Fns) { 1827 llvm::append_range(VectorDescs, Fns); 1828 llvm::sort(VectorDescs, compareByScalarFnName); 1829 1830 llvm::append_range(ScalarDescs, Fns); 1831 llvm::sort(ScalarDescs, compareByVectorFnName); 1832 } 1833 1834 void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib( 1835 enum VectorLibrary VecLib) { 1836 switch (VecLib) { 1837 case Accelerate: { 1838 const VecDesc VecFuncs[] = { 1839 #define TLI_DEFINE_ACCELERATE_VECFUNCS 1840 #include "llvm/Analysis/VecFuncs.def" 1841 }; 1842 addVectorizableFunctions(VecFuncs); 1843 break; 1844 } 1845 case DarwinLibSystemM: { 1846 const VecDesc VecFuncs[] = { 1847 #define TLI_DEFINE_DARWIN_LIBSYSTEM_M_VECFUNCS 1848 #include "llvm/Analysis/VecFuncs.def" 1849 }; 1850 addVectorizableFunctions(VecFuncs); 1851 break; 1852 } 1853 case LIBMVEC_X86: { 1854 const VecDesc VecFuncs[] = { 1855 #define TLI_DEFINE_LIBMVEC_X86_VECFUNCS 1856 #include "llvm/Analysis/VecFuncs.def" 1857 }; 1858 addVectorizableFunctions(VecFuncs); 1859 break; 1860 } 1861 case MASSV: { 1862 const VecDesc VecFuncs[] = { 1863 #define TLI_DEFINE_MASSV_VECFUNCS 1864 #include "llvm/Analysis/VecFuncs.def" 1865 }; 1866 addVectorizableFunctions(VecFuncs); 1867 break; 1868 } 1869 case SVML: { 1870 const VecDesc VecFuncs[] = { 1871 #define TLI_DEFINE_SVML_VECFUNCS 1872 #include "llvm/Analysis/VecFuncs.def" 1873 }; 1874 addVectorizableFunctions(VecFuncs); 1875 break; 1876 } 1877 case NoLibrary: 1878 break; 1879 } 1880 } 1881 1882 bool TargetLibraryInfoImpl::isFunctionVectorizable(StringRef funcName) const { 1883 funcName = sanitizeFunctionName(funcName); 1884 if (funcName.empty()) 1885 return false; 1886 1887 std::vector<VecDesc>::const_iterator I = 1888 llvm::lower_bound(VectorDescs, funcName, compareWithScalarFnName); 1889 return I != VectorDescs.end() && StringRef(I->ScalarFnName) == funcName; 1890 } 1891 1892 StringRef 1893 TargetLibraryInfoImpl::getVectorizedFunction(StringRef F, 1894 const ElementCount &VF) const { 1895 F = sanitizeFunctionName(F); 1896 if (F.empty()) 1897 return F; 1898 std::vector<VecDesc>::const_iterator I = 1899 llvm::lower_bound(VectorDescs, F, compareWithScalarFnName); 1900 while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == F) { 1901 if (I->VectorizationFactor == VF) 1902 return I->VectorFnName; 1903 ++I; 1904 } 1905 return StringRef(); 1906 } 1907 1908 TargetLibraryInfo TargetLibraryAnalysis::run(const Function &F, 1909 FunctionAnalysisManager &) { 1910 if (!BaselineInfoImpl) 1911 BaselineInfoImpl = 1912 TargetLibraryInfoImpl(Triple(F.getParent()->getTargetTriple())); 1913 return TargetLibraryInfo(*BaselineInfoImpl, &F); 1914 } 1915 1916 unsigned TargetLibraryInfoImpl::getWCharSize(const Module &M) const { 1917 if (auto *ShortWChar = cast_or_null<ConstantAsMetadata>( 1918 M.getModuleFlag("wchar_size"))) 1919 return cast<ConstantInt>(ShortWChar->getValue())->getZExtValue(); 1920 return 0; 1921 } 1922 1923 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass() 1924 : ImmutablePass(ID), TLA(TargetLibraryInfoImpl()) { 1925 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry()); 1926 } 1927 1928 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(const Triple &T) 1929 : ImmutablePass(ID), TLA(TargetLibraryInfoImpl(T)) { 1930 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry()); 1931 } 1932 1933 TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass( 1934 const TargetLibraryInfoImpl &TLIImpl) 1935 : ImmutablePass(ID), TLA(TLIImpl) { 1936 initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry()); 1937 } 1938 1939 AnalysisKey TargetLibraryAnalysis::Key; 1940 1941 // Register the basic pass. 1942 INITIALIZE_PASS(TargetLibraryInfoWrapperPass, "targetlibinfo", 1943 "Target Library Information", false, true) 1944 char TargetLibraryInfoWrapperPass::ID = 0; 1945 1946 void TargetLibraryInfoWrapperPass::anchor() {} 1947 1948 void TargetLibraryInfoImpl::getWidestVF(StringRef ScalarF, 1949 ElementCount &FixedVF, 1950 ElementCount &ScalableVF) const { 1951 ScalarF = sanitizeFunctionName(ScalarF); 1952 // Use '0' here because a type of the form <vscale x 1 x ElTy> is not the 1953 // same as a scalar. 1954 ScalableVF = ElementCount::getScalable(0); 1955 FixedVF = ElementCount::getFixed(1); 1956 if (ScalarF.empty()) 1957 return; 1958 1959 std::vector<VecDesc>::const_iterator I = 1960 llvm::lower_bound(VectorDescs, ScalarF, compareWithScalarFnName); 1961 while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == ScalarF) { 1962 ElementCount *VF = 1963 I->VectorizationFactor.isScalable() ? &ScalableVF : &FixedVF; 1964 if (ElementCount::isKnownGT(I->VectorizationFactor, *VF)) 1965 *VF = I->VectorizationFactor; 1966 ++I; 1967 } 1968 } 1969