Triple.h revision e53d6051b7e173722351a5647bfd71eebee3d837
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 }; 81 enum OSType { 82 UnknownOS, 83 84 AuroraUX, 85 Cygwin, 86 Darwin, 87 DragonFly, 88 FreeBSD, 89 IOS, 90 KFreeBSD, 91 Linux, 92 Lv2, // PS3 93 MacOSX, 94 MinGW32, // i*86-pc-mingw32, *-w64-mingw32 95 NetBSD, 96 OpenBSD, 97 Solaris, 98 Win32, 99 Haiku, 100 Minix, 101 RTEMS, 102 NativeClient, 103 CNK, // BG/P Compute-Node Kernel 104 Bitrig 105 }; 106 enum EnvironmentType { 107 UnknownEnvironment, 108 109 GNU, 110 GNUEABI, 111 GNUEABIHF, 112 EABI, 113 MachO, 114 Android 115 }; 116 117private: 118 std::string Data; 119 120 /// The parsed arch type. 121 ArchType Arch; 122 123 /// The parsed vendor type. 124 VendorType Vendor; 125 126 /// The parsed OS type. 127 OSType OS; 128 129 /// The parsed Environment type. 130 EnvironmentType Environment; 131 132public: 133 /// @name Constructors 134 /// @{ 135 136 /// \brief Default constructor is the same as an empty string and leaves all 137 /// triple fields unknown. 138 Triple() : Data(), Arch(), Vendor(), OS(), Environment() {} 139 140 explicit Triple(const Twine &Str); 141 Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr); 142 Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr, 143 const Twine &EnvironmentStr); 144 145 /// @} 146 /// @name Normalization 147 /// @{ 148 149 /// normalize - Turn an arbitrary machine specification into the canonical 150 /// triple form (or something sensible that the Triple class understands if 151 /// nothing better can reasonably be done). In particular, it handles the 152 /// common case in which otherwise valid components are in the wrong order. 153 static std::string normalize(StringRef Str); 154 155 /// @} 156 /// @name Typed Component Access 157 /// @{ 158 159 /// getArch - Get the parsed architecture type of this triple. 160 ArchType getArch() const { return Arch; } 161 162 /// getVendor - Get the parsed vendor type of this triple. 163 VendorType getVendor() const { return Vendor; } 164 165 /// getOS - Get the parsed operating system type of this triple. 166 OSType getOS() const { return OS; } 167 168 /// hasEnvironment - Does this triple have the optional environment 169 /// (fourth) component? 170 bool hasEnvironment() const { 171 return getEnvironmentName() != ""; 172 } 173 174 /// getEnvironment - Get the parsed environment type of this triple. 175 EnvironmentType getEnvironment() const { return Environment; } 176 177 /// getOSVersion - Parse the version number from the OS name component of the 178 /// triple, if present. 179 /// 180 /// For example, "fooos1.2.3" would return (1, 2, 3). 181 /// 182 /// If an entry is not defined, it will be returned as 0. 183 void getOSVersion(unsigned &Major, unsigned &Minor, unsigned &Micro) const; 184 185 /// getOSMajorVersion - Return just the major version number, this is 186 /// specialized because it is a common query. 187 unsigned getOSMajorVersion() const { 188 unsigned Maj, Min, Micro; 189 getOSVersion(Maj, Min, Micro); 190 return Maj; 191 } 192 193 /// getMacOSXVersion - Parse the version number as with getOSVersion and then 194 /// translate generic "darwin" versions to the corresponding OS X versions. 195 /// This may also be called with IOS triples but the OS X version number is 196 /// just set to a constant 10.4.0 in that case. Returns true if successful. 197 bool getMacOSXVersion(unsigned &Major, unsigned &Minor, 198 unsigned &Micro) const; 199 200 /// getiOSVersion - Parse the version number as with getOSVersion. This should 201 /// only be called with IOS triples. 202 void getiOSVersion(unsigned &Major, unsigned &Minor, 203 unsigned &Micro) const; 204 205 /// @} 206 /// @name Direct Component Access 207 /// @{ 208 209 const std::string &str() const { return Data; } 210 211 const std::string &getTriple() const { return Data; } 212 213 /// getArchName - Get the architecture (first) component of the 214 /// triple. 215 StringRef getArchName() const; 216 217 /// getVendorName - Get the vendor (second) component of the triple. 218 StringRef getVendorName() const; 219 220 /// getOSName - Get the operating system (third) component of the 221 /// triple. 222 StringRef getOSName() const; 223 224 /// getEnvironmentName - Get the optional environment (fourth) 225 /// component of the triple, or "" if empty. 226 StringRef getEnvironmentName() const; 227 228 /// getOSAndEnvironmentName - Get the operating system and optional 229 /// environment components as a single string (separated by a '-' 230 /// if the environment component is present). 231 StringRef getOSAndEnvironmentName() const; 232 233 /// @} 234 /// @name Convenience Predicates 235 /// @{ 236 237 /// \brief Test whether the architecture is 64-bit 238 /// 239 /// Note that this tests for 64-bit pointer width, and nothing else. Note 240 /// that we intentionally expose only three predicates, 64-bit, 32-bit, and 241 /// 16-bit. The inner details of pointer width for particular architectures 242 /// is not summed up in the triple, and so only a coarse grained predicate 243 /// system is provided. 244 bool isArch64Bit() const; 245 246 /// \brief Test whether the architecture is 32-bit 247 /// 248 /// Note that this tests for 32-bit pointer width, and nothing else. 249 bool isArch32Bit() const; 250 251 /// \brief Test whether the architecture is 16-bit 252 /// 253 /// Note that this tests for 16-bit pointer width, and nothing else. 254 bool isArch16Bit() const; 255 256 /// isOSVersionLT - Helper function for doing comparisons against version 257 /// numbers included in the target triple. 258 bool isOSVersionLT(unsigned Major, unsigned Minor = 0, 259 unsigned Micro = 0) const { 260 unsigned LHS[3]; 261 getOSVersion(LHS[0], LHS[1], LHS[2]); 262 263 if (LHS[0] != Major) 264 return LHS[0] < Major; 265 if (LHS[1] != Minor) 266 return LHS[1] < Minor; 267 if (LHS[2] != Micro) 268 return LHS[1] < Micro; 269 270 return false; 271 } 272 273 /// isMacOSXVersionLT - Comparison function for checking OS X version 274 /// compatibility, which handles supporting skewed version numbering schemes 275 /// used by the "darwin" triples. 276 unsigned isMacOSXVersionLT(unsigned Major, unsigned Minor = 0, 277 unsigned Micro = 0) const { 278 assert(isMacOSX() && "Not an OS X triple!"); 279 280 // If this is OS X, expect a sane version number. 281 if (getOS() == Triple::MacOSX) 282 return isOSVersionLT(Major, Minor, Micro); 283 284 // Otherwise, compare to the "Darwin" number. 285 assert(Major == 10 && "Unexpected major version"); 286 return isOSVersionLT(Minor + 4, Micro, 0); 287 } 288 289 /// isMacOSX - Is this a Mac OS X triple. For legacy reasons, we support both 290 /// "darwin" and "osx" as OS X triples. 291 bool isMacOSX() const { 292 return getOS() == Triple::Darwin || getOS() == Triple::MacOSX; 293 } 294 295 /// isOSDarwin - Is this a "Darwin" OS (OS X or iOS). 296 bool isOSDarwin() const { 297 return isMacOSX() || getOS() == Triple::IOS; 298 } 299 300 /// \brief Tests for either Cygwin or MinGW OS 301 bool isOSCygMing() const { 302 return getOS() == Triple::Cygwin || getOS() == Triple::MinGW32; 303 } 304 305 /// isOSWindows - Is this a "Windows" OS. 306 bool isOSWindows() const { 307 return getOS() == Triple::Win32 || isOSCygMing(); 308 } 309 310 /// \brief Tests whether the OS uses the ELF binary format. 311 bool isOSBinFormatELF() const { 312 return !isOSDarwin() && !isOSWindows(); 313 } 314 315 /// \brief Tests whether the OS uses the COFF binary format. 316 bool isOSBinFormatCOFF() const { 317 return isOSWindows(); 318 } 319 320 /// \brief Tests whether the environment is MachO. 321 // FIXME: Should this be an OSBinFormat predicate? 322 bool isEnvironmentMachO() const { 323 return getEnvironment() == Triple::MachO || isOSDarwin(); 324 } 325 326 /// @} 327 /// @name Mutators 328 /// @{ 329 330 /// setArch - Set the architecture (first) component of the triple 331 /// to a known type. 332 void setArch(ArchType Kind); 333 334 /// setVendor - Set the vendor (second) component of the triple to a 335 /// known type. 336 void setVendor(VendorType Kind); 337 338 /// setOS - Set the operating system (third) component of the triple 339 /// to a known type. 340 void setOS(OSType Kind); 341 342 /// setEnvironment - Set the environment (fourth) component of the triple 343 /// to a known type. 344 void setEnvironment(EnvironmentType Kind); 345 346 /// setTriple - Set all components to the new triple \p Str. 347 void setTriple(const Twine &Str); 348 349 /// setArchName - Set the architecture (first) component of the 350 /// triple by name. 351 void setArchName(StringRef Str); 352 353 /// setVendorName - Set the vendor (second) component of the triple 354 /// by name. 355 void setVendorName(StringRef Str); 356 357 /// setOSName - Set the operating system (third) component of the 358 /// triple by name. 359 void setOSName(StringRef Str); 360 361 /// setEnvironmentName - Set the optional environment (fourth) 362 /// component of the triple by name. 363 void setEnvironmentName(StringRef Str); 364 365 /// setOSAndEnvironmentName - Set the operating system and optional 366 /// environment components with a single string. 367 void setOSAndEnvironmentName(StringRef Str); 368 369 /// getArchNameForAssembler - Get an architecture name that is understood by 370 /// the target assembler. 371 const char *getArchNameForAssembler(); 372 373 /// @} 374 /// @name Helpers to build variants of a particular triple. 375 /// @{ 376 377 /// \brief Form a triple with a 32-bit variant of the current architecture. 378 /// 379 /// This can be used to move across "families" of architectures where useful. 380 /// 381 /// \returns A new triple with a 32-bit architecture or an unknown 382 /// architecture if no such variant can be found. 383 llvm::Triple get32BitArchVariant() const; 384 385 /// \brief Form a triple with a 64-bit variant of the current architecture. 386 /// 387 /// This can be used to move across "families" of architectures where useful. 388 /// 389 /// \returns A new triple with a 64-bit architecture or an unknown 390 /// architecture if no such variant can be found. 391 llvm::Triple get64BitArchVariant() const; 392 393 /// @} 394 /// @name Static helpers for IDs. 395 /// @{ 396 397 /// getArchTypeName - Get the canonical name for the \p Kind architecture. 398 static const char *getArchTypeName(ArchType Kind); 399 400 /// getArchTypePrefix - Get the "prefix" canonical name for the \p Kind 401 /// architecture. This is the prefix used by the architecture specific 402 /// builtins, and is suitable for passing to \see 403 /// Intrinsic::getIntrinsicForGCCBuiltin(). 404 /// 405 /// \return - The architecture prefix, or 0 if none is defined. 406 static const char *getArchTypePrefix(ArchType Kind); 407 408 /// getVendorTypeName - Get the canonical name for the \p Kind vendor. 409 static const char *getVendorTypeName(VendorType Kind); 410 411 /// getOSTypeName - Get the canonical name for the \p Kind operating system. 412 static const char *getOSTypeName(OSType Kind); 413 414 /// getEnvironmentTypeName - Get the canonical name for the \p Kind 415 /// environment. 416 static const char *getEnvironmentTypeName(EnvironmentType Kind); 417 418 /// @} 419 /// @name Static helpers for converting alternate architecture names. 420 /// @{ 421 422 /// getArchTypeForLLVMName - The canonical type for the given LLVM 423 /// architecture name (e.g., "x86"). 424 static ArchType getArchTypeForLLVMName(StringRef Str); 425 426 /// getArchTypeForDarwinArchName - Get the architecture type for a "Darwin" 427 /// architecture name, for example as accepted by "gcc -arch" (see also 428 /// arch(3)). 429 static ArchType getArchTypeForDarwinArchName(StringRef Str); 430 431 /// @} 432}; 433 434} // End llvm namespace 435 436 437#endif 438