Triple.h revision 2e522d05278a69cf75b41dcd4b358e46b5350425
1//===-- llvm/ADT/Triple.h - Target triple helper class ----------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef LLVM_ADT_TRIPLE_H 11#define LLVM_ADT_TRIPLE_H 12 13#include "llvm/ADT/Twine.h" 14 15// Some system headers or GCC predefined macros conflict with identifiers in 16// this file. Undefine them here. 17#undef mips 18#undef sparc 19 20namespace llvm { 21 22/// Triple - Helper class for working with target triples. 23/// 24/// Target triples are strings in the canonical form: 25/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM 26/// or 27/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT 28/// 29/// This class is used for clients which want to support arbitrary 30/// target triples, but also want to implement certain special 31/// behavior for particular targets. This class isolates the mapping 32/// from the components of the target triple to well known IDs. 33/// 34/// At its core the Triple class is designed to be a wrapper for a triple 35/// string; the constructor does not change or normalize the triple string. 36/// Clients that need to handle the non-canonical triples that users often 37/// specify should use the normalize method. 38/// 39/// See autoconf/config.guess for a glimpse into what triples look like in 40/// practice. 41class Triple { 42public: 43 enum ArchType { 44 UnknownArch, 45 46 arm, // ARM; arm, armv.*, xscale 47 cellspu, // CellSPU: spu, cellspu 48 hexagon, // Hexagon: hexagon 49 mips, // MIPS: mips, mipsallegrex 50 mipsel, // MIPSEL: mipsel, mipsallegrexel 51 mips64, // MIPS64: mips64 52 mips64el,// MIPS64EL: mips64el 53 msp430, // MSP430: msp430 54 ppc, // PPC: powerpc 55 ppc64, // PPC64: powerpc64, ppu 56 r600, // R600: AMD GPUs HD2XXX - HD6XXX 57 sparc, // Sparc: sparc 58 sparcv9, // Sparcv9: Sparcv9 59 tce, // TCE (http://tce.cs.tut.fi/): tce 60 thumb, // Thumb: thumb, thumbv.* 61 x86, // X86: i[3-9]86 62 x86_64, // X86-64: amd64, x86_64 63 xcore, // XCore: xcore 64 mblaze, // MBlaze: mblaze 65 nvptx, // NVPTX: 32-bit 66 nvptx64, // NVPTX: 64-bit 67 le32, // le32: generic little-endian 32-bit CPU (PNaCl / Emscripten) 68 amdil, // amdil: amd IL 69 spir // SPIR: standard portable IR for OpenCL 70 }; 71 enum VendorType { 72 UnknownVendor, 73 74 Apple, 75 PC, 76 SCEI, 77 BGP, 78 BGQ, 79 Freescale, 80 IBM 81 }; 82 enum OSType { 83 UnknownOS, 84 85 AuroraUX, 86 Cygwin, 87 Darwin, 88 DragonFly, 89 FreeBSD, 90 IOS, 91 KFreeBSD, 92 Linux, 93 Lv2, // PS3 94 MacOSX, 95 MinGW32, // i*86-pc-mingw32, *-w64-mingw32 96 NetBSD, 97 OpenBSD, 98 Solaris, 99 Win32, 100 Haiku, 101 Minix, 102 RTEMS, 103 NativeClient, 104 CNK, // BG/P Compute-Node Kernel 105 Bitrig, 106 AIX 107 }; 108 enum EnvironmentType { 109 UnknownEnvironment, 110 111 GNU, 112 GNUEABI, 113 GNUEABIHF, 114 EABI, 115 MachO, 116 Android, 117 ELF 118 }; 119 120private: 121 std::string Data; 122 123 /// The parsed arch type. 124 ArchType Arch; 125 126 /// The parsed vendor type. 127 VendorType Vendor; 128 129 /// The parsed OS type. 130 OSType OS; 131 132 /// The parsed Environment type. 133 EnvironmentType Environment; 134 135public: 136 /// @name Constructors 137 /// @{ 138 139 /// \brief Default constructor is the same as an empty string and leaves all 140 /// triple fields unknown. 141 Triple() : Data(), Arch(), Vendor(), OS(), Environment() {} 142 143 explicit Triple(const Twine &Str); 144 Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr); 145 Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr, 146 const Twine &EnvironmentStr); 147 148 /// @} 149 /// @name Normalization 150 /// @{ 151 152 /// normalize - Turn an arbitrary machine specification into the canonical 153 /// triple form (or something sensible that the Triple class understands if 154 /// nothing better can reasonably be done). In particular, it handles the 155 /// common case in which otherwise valid components are in the wrong order. 156 static std::string normalize(StringRef Str); 157 158 /// @} 159 /// @name Typed Component Access 160 /// @{ 161 162 /// getArch - Get the parsed architecture type of this triple. 163 ArchType getArch() const { return Arch; } 164 165 /// getVendor - Get the parsed vendor type of this triple. 166 VendorType getVendor() const { return Vendor; } 167 168 /// getOS - Get the parsed operating system type of this triple. 169 OSType getOS() const { return OS; } 170 171 /// hasEnvironment - Does this triple have the optional environment 172 /// (fourth) component? 173 bool hasEnvironment() const { 174 return getEnvironmentName() != ""; 175 } 176 177 /// getEnvironment - Get the parsed environment type of this triple. 178 EnvironmentType getEnvironment() const { return Environment; } 179 180 /// getOSVersion - Parse the version number from the OS name component of the 181 /// triple, if present. 182 /// 183 /// For example, "fooos1.2.3" would return (1, 2, 3). 184 /// 185 /// If an entry is not defined, it will be returned as 0. 186 void getOSVersion(unsigned &Major, unsigned &Minor, unsigned &Micro) const; 187 188 /// getOSMajorVersion - Return just the major version number, this is 189 /// specialized because it is a common query. 190 unsigned getOSMajorVersion() const { 191 unsigned Maj, Min, Micro; 192 getOSVersion(Maj, Min, Micro); 193 return Maj; 194 } 195 196 /// getMacOSXVersion - Parse the version number as with getOSVersion and then 197 /// translate generic "darwin" versions to the corresponding OS X versions. 198 /// This may also be called with IOS triples but the OS X version number is 199 /// just set to a constant 10.4.0 in that case. Returns true if successful. 200 bool getMacOSXVersion(unsigned &Major, unsigned &Minor, 201 unsigned &Micro) const; 202 203 /// getiOSVersion - Parse the version number as with getOSVersion. This should 204 /// only be called with IOS triples. 205 void getiOSVersion(unsigned &Major, unsigned &Minor, 206 unsigned &Micro) const; 207 208 /// @} 209 /// @name Direct Component Access 210 /// @{ 211 212 const std::string &str() const { return Data; } 213 214 const std::string &getTriple() const { return Data; } 215 216 /// getArchName - Get the architecture (first) component of the 217 /// triple. 218 StringRef getArchName() const; 219 220 /// getVendorName - Get the vendor (second) component of the triple. 221 StringRef getVendorName() const; 222 223 /// getOSName - Get the operating system (third) component of the 224 /// triple. 225 StringRef getOSName() const; 226 227 /// getEnvironmentName - Get the optional environment (fourth) 228 /// component of the triple, or "" if empty. 229 StringRef getEnvironmentName() const; 230 231 /// getOSAndEnvironmentName - Get the operating system and optional 232 /// environment components as a single string (separated by a '-' 233 /// if the environment component is present). 234 StringRef getOSAndEnvironmentName() const; 235 236 /// @} 237 /// @name Convenience Predicates 238 /// @{ 239 240 /// \brief Test whether the architecture is 64-bit 241 /// 242 /// Note that this tests for 64-bit pointer width, and nothing else. Note 243 /// that we intentionally expose only three predicates, 64-bit, 32-bit, and 244 /// 16-bit. The inner details of pointer width for particular architectures 245 /// is not summed up in the triple, and so only a coarse grained predicate 246 /// system is provided. 247 bool isArch64Bit() const; 248 249 /// \brief Test whether the architecture is 32-bit 250 /// 251 /// Note that this tests for 32-bit pointer width, and nothing else. 252 bool isArch32Bit() const; 253 254 /// \brief Test whether the architecture is 16-bit 255 /// 256 /// Note that this tests for 16-bit pointer width, and nothing else. 257 bool isArch16Bit() const; 258 259 /// isOSVersionLT - Helper function for doing comparisons against version 260 /// numbers included in the target triple. 261 bool isOSVersionLT(unsigned Major, unsigned Minor = 0, 262 unsigned Micro = 0) const { 263 unsigned LHS[3]; 264 getOSVersion(LHS[0], LHS[1], LHS[2]); 265 266 if (LHS[0] != Major) 267 return LHS[0] < Major; 268 if (LHS[1] != Minor) 269 return LHS[1] < Minor; 270 if (LHS[2] != Micro) 271 return LHS[1] < Micro; 272 273 return false; 274 } 275 276 /// isMacOSXVersionLT - Comparison function for checking OS X version 277 /// compatibility, which handles supporting skewed version numbering schemes 278 /// used by the "darwin" triples. 279 unsigned isMacOSXVersionLT(unsigned Major, unsigned Minor = 0, 280 unsigned Micro = 0) const { 281 assert(isMacOSX() && "Not an OS X triple!"); 282 283 // If this is OS X, expect a sane version number. 284 if (getOS() == Triple::MacOSX) 285 return isOSVersionLT(Major, Minor, Micro); 286 287 // Otherwise, compare to the "Darwin" number. 288 assert(Major == 10 && "Unexpected major version"); 289 return isOSVersionLT(Minor + 4, Micro, 0); 290 } 291 292 /// isMacOSX - Is this a Mac OS X triple. For legacy reasons, we support both 293 /// "darwin" and "osx" as OS X triples. 294 bool isMacOSX() const { 295 return getOS() == Triple::Darwin || getOS() == Triple::MacOSX; 296 } 297 298 /// isOSDarwin - Is this a "Darwin" OS (OS X or iOS). 299 bool isOSDarwin() const { 300 return isMacOSX() || getOS() == Triple::IOS; 301 } 302 303 /// \brief Tests for either Cygwin or MinGW OS 304 bool isOSCygMing() const { 305 return getOS() == Triple::Cygwin || getOS() == Triple::MinGW32; 306 } 307 308 /// isOSWindows - Is this a "Windows" OS. 309 bool isOSWindows() const { 310 return getOS() == Triple::Win32 || isOSCygMing(); 311 } 312 313 /// \brief Tests whether the OS uses the ELF binary format. 314 bool isOSBinFormatELF() const { 315 return !isOSDarwin() && !isOSWindows(); 316 } 317 318 /// \brief Tests whether the OS uses the COFF binary format. 319 bool isOSBinFormatCOFF() const { 320 return isOSWindows(); 321 } 322 323 /// \brief Tests whether the environment is MachO. 324 // FIXME: Should this be an OSBinFormat predicate? 325 bool isEnvironmentMachO() const { 326 return getEnvironment() == Triple::MachO || isOSDarwin(); 327 } 328 329 /// @} 330 /// @name Mutators 331 /// @{ 332 333 /// setArch - Set the architecture (first) component of the triple 334 /// to a known type. 335 void setArch(ArchType Kind); 336 337 /// setVendor - Set the vendor (second) component of the triple to a 338 /// known type. 339 void setVendor(VendorType Kind); 340 341 /// setOS - Set the operating system (third) component of the triple 342 /// to a known type. 343 void setOS(OSType Kind); 344 345 /// setEnvironment - Set the environment (fourth) component of the triple 346 /// to a known type. 347 void setEnvironment(EnvironmentType Kind); 348 349 /// setTriple - Set all components to the new triple \p Str. 350 void setTriple(const Twine &Str); 351 352 /// setArchName - Set the architecture (first) component of the 353 /// triple by name. 354 void setArchName(StringRef Str); 355 356 /// setVendorName - Set the vendor (second) component of the triple 357 /// by name. 358 void setVendorName(StringRef Str); 359 360 /// setOSName - Set the operating system (third) component of the 361 /// triple by name. 362 void setOSName(StringRef Str); 363 364 /// setEnvironmentName - Set the optional environment (fourth) 365 /// component of the triple by name. 366 void setEnvironmentName(StringRef Str); 367 368 /// setOSAndEnvironmentName - Set the operating system and optional 369 /// environment components with a single string. 370 void setOSAndEnvironmentName(StringRef Str); 371 372 /// getArchNameForAssembler - Get an architecture name that is understood by 373 /// the target assembler. 374 const char *getArchNameForAssembler(); 375 376 /// @} 377 /// @name Helpers to build variants of a particular triple. 378 /// @{ 379 380 /// \brief Form a triple with a 32-bit variant of the current architecture. 381 /// 382 /// This can be used to move across "families" of architectures where useful. 383 /// 384 /// \returns A new triple with a 32-bit architecture or an unknown 385 /// architecture if no such variant can be found. 386 llvm::Triple get32BitArchVariant() const; 387 388 /// \brief Form a triple with a 64-bit variant of the current architecture. 389 /// 390 /// This can be used to move across "families" of architectures where useful. 391 /// 392 /// \returns A new triple with a 64-bit architecture or an unknown 393 /// architecture if no such variant can be found. 394 llvm::Triple get64BitArchVariant() const; 395 396 /// @} 397 /// @name Static helpers for IDs. 398 /// @{ 399 400 /// getArchTypeName - Get the canonical name for the \p Kind architecture. 401 static const char *getArchTypeName(ArchType Kind); 402 403 /// getArchTypePrefix - Get the "prefix" canonical name for the \p Kind 404 /// architecture. This is the prefix used by the architecture specific 405 /// builtins, and is suitable for passing to \see 406 /// Intrinsic::getIntrinsicForGCCBuiltin(). 407 /// 408 /// \return - The architecture prefix, or 0 if none is defined. 409 static const char *getArchTypePrefix(ArchType Kind); 410 411 /// getVendorTypeName - Get the canonical name for the \p Kind vendor. 412 static const char *getVendorTypeName(VendorType Kind); 413 414 /// getOSTypeName - Get the canonical name for the \p Kind operating system. 415 static const char *getOSTypeName(OSType Kind); 416 417 /// getEnvironmentTypeName - Get the canonical name for the \p Kind 418 /// environment. 419 static const char *getEnvironmentTypeName(EnvironmentType Kind); 420 421 /// @} 422 /// @name Static helpers for converting alternate architecture names. 423 /// @{ 424 425 /// getArchTypeForLLVMName - The canonical type for the given LLVM 426 /// architecture name (e.g., "x86"). 427 static ArchType getArchTypeForLLVMName(StringRef Str); 428 429 /// getArchTypeForDarwinArchName - Get the architecture type for a "Darwin" 430 /// architecture name, for example as accepted by "gcc -arch" (see also 431 /// arch(3)). 432 static ArchType getArchTypeForDarwinArchName(StringRef Str); 433 434 /// @} 435}; 436 437} // End llvm namespace 438 439 440#endif 441