Triple.h revision 8974153870928527826ea5bad3359377b66666cc
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/StringRef.h" 14#include <string> 15 16// Some system headers or GCC predefined macros conflict with identifiers in 17// this file. Undefine them here. 18#undef mips 19#undef sparc 20 21namespace llvm { 22class StringRef; 23class Twine; 24 25/// Triple - Helper class for working with target triples. 26/// 27/// Target triples are strings in the canonical form: 28/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM 29/// or 30/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT 31/// 32/// This class is used for clients which want to support arbitrary 33/// target triples, but also want to implement certain special 34/// behavior for particular targets. This class isolates the mapping 35/// from the components of the target triple to well known IDs. 36/// 37/// At its core the Triple class is designed to be a wrapper for a triple 38/// string; the constructor does not change or normalize the triple string. 39/// Clients that need to handle the non-canonical triples that users often 40/// specify should use the normalize method. 41/// 42/// See autoconf/config.guess for a glimpse into what triples look like in 43/// practice. 44class Triple { 45public: 46 enum ArchType { 47 UnknownArch, 48 49 alpha, // Alpha: alpha 50 arm, // ARM; arm, armv.*, xscale 51 bfin, // Blackfin: bfin 52 cellspu, // CellSPU: spu, cellspu 53 mips, // MIPS: mips, mipsallegrex 54 mipsel, // MIPSEL: mipsel, mipsallegrexel, psp 55 msp430, // MSP430: msp430 56 ppc, // PPC: powerpc 57 ppc64, // PPC64: powerpc64, ppu 58 sparc, // Sparc: sparc 59 sparcv9, // Sparcv9: Sparcv9 60 systemz, // SystemZ: s390x 61 tce, // TCE (http://tce.cs.tut.fi/): tce 62 thumb, // Thumb: thumb, thumbv.* 63 x86, // X86: i[3-9]86 64 x86_64, // X86-64: amd64, x86_64 65 xcore, // XCore: xcore 66 mblaze, // MBlaze: mblaze 67 ptx, // PTX: ptx 68 69 InvalidArch 70 }; 71 enum VendorType { 72 UnknownVendor, 73 74 Apple, 75 PC, 76 SCEI 77 }; 78 enum OSType { 79 UnknownOS, 80 81 AuroraUX, 82 Cygwin, 83 Darwin, 84 DragonFly, 85 FreeBSD, 86 IOS, 87 Linux, 88 Lv2, // PS3 89 MinGW32, // i*86-pc-mingw32, *-w64-mingw32 90 NetBSD, 91 OSX, 92 OpenBSD, 93 Psp, 94 Solaris, 95 Win32, 96 Haiku, 97 Minix 98 }; 99 enum EnvironmentType { 100 UnknownEnvironment, 101 102 GNU, 103 GNUEABI, 104 EABI, 105 MachO 106 }; 107 108private: 109 std::string Data; 110 111 /// The parsed arch type (or InvalidArch if uninitialized). 112 mutable ArchType Arch; 113 114 /// The parsed vendor type. 115 mutable VendorType Vendor; 116 117 /// The parsed OS type. 118 mutable OSType OS; 119 120 /// The parsed Environment type. 121 mutable EnvironmentType Environment; 122 123 bool isInitialized() const { return Arch != InvalidArch; } 124 static ArchType ParseArch(StringRef ArchName); 125 static VendorType ParseVendor(StringRef VendorName); 126 static OSType ParseOS(StringRef OSName); 127 static EnvironmentType ParseEnvironment(StringRef EnvironmentName); 128 void Parse() const; 129 130public: 131 /// @name Constructors 132 /// @{ 133 134 Triple() : Data(), Arch(InvalidArch) {} 135 explicit Triple(StringRef Str) : Data(Str), Arch(InvalidArch) {} 136 explicit Triple(StringRef ArchStr, StringRef VendorStr, StringRef OSStr) 137 : Data(ArchStr), Arch(InvalidArch) { 138 Data += '-'; 139 Data += VendorStr; 140 Data += '-'; 141 Data += OSStr; 142 } 143 144 explicit Triple(StringRef ArchStr, StringRef VendorStr, StringRef OSStr, 145 StringRef EnvironmentStr) 146 : Data(ArchStr), Arch(InvalidArch) { 147 Data += '-'; 148 Data += VendorStr; 149 Data += '-'; 150 Data += OSStr; 151 Data += '-'; 152 Data += EnvironmentStr; 153 } 154 155 /// @} 156 /// @name Normalization 157 /// @{ 158 159 /// normalize - Turn an arbitrary machine specification into the canonical 160 /// triple form (or something sensible that the Triple class understands if 161 /// nothing better can reasonably be done). In particular, it handles the 162 /// common case in which otherwise valid components are in the wrong order. 163 static std::string normalize(StringRef Str); 164 165 /// @} 166 /// @name Typed Component Access 167 /// @{ 168 169 /// getArch - Get the parsed architecture type of this triple. 170 ArchType getArch() const { 171 if (!isInitialized()) Parse(); 172 return Arch; 173 } 174 175 /// getVendor - Get the parsed vendor type of this triple. 176 VendorType getVendor() const { 177 if (!isInitialized()) Parse(); 178 return Vendor; 179 } 180 181 /// getOS - Get the parsed operating system type of this triple. 182 OSType getOS() const { 183 if (!isInitialized()) Parse(); 184 return OS; 185 } 186 187 /// hasEnvironment - Does this triple have the optional environment 188 /// (fourth) component? 189 bool hasEnvironment() const { 190 return getEnvironmentName() != ""; 191 } 192 193 /// getEnvironment - Get the parsed environment type of this triple. 194 EnvironmentType getEnvironment() const { 195 if (!isInitialized()) Parse(); 196 return Environment; 197 } 198 199 /// @} 200 /// @name Direct Component Access 201 /// @{ 202 203 const std::string &str() const { return Data; } 204 205 const std::string &getTriple() const { return Data; } 206 207 /// getArchName - Get the architecture (first) component of the 208 /// triple. 209 StringRef getArchName() const; 210 211 /// getVendorName - Get the vendor (second) component of the triple. 212 StringRef getVendorName() const; 213 214 /// getOSName - Get the operating system (third) component of the 215 /// triple. 216 StringRef getOSName() const; 217 218 /// getEnvironmentName - Get the optional environment (fourth) 219 /// component of the triple, or "" if empty. 220 StringRef getEnvironmentName() const; 221 222 /// getOSAndEnvironmentName - Get the operating system and optional 223 /// environment components as a single string (separated by a '-' 224 /// if the environment component is present). 225 StringRef getOSAndEnvironmentName() const; 226 227 /// getOSNumber - Parse the version number from the OS name component of the 228 /// triple, if present. 229 /// 230 /// For example, "fooos1.2.3" would return (1, 2, 3). 231 /// 232 /// If an entry is not defined, it will be returned as 0. 233 void getOSVersion(unsigned &Major, unsigned &Minor, unsigned &Micro) const; 234 235 /// getOSMajorVersion - Return just the major version number, this is 236 /// specialized because it is a common query. 237 unsigned getOSMajorVersion() const { 238 unsigned Maj, Min, Micro; 239 getDarwinNumber(Maj, Min, Micro); 240 return Maj; 241 } 242 243 void getDarwinNumber(unsigned &Major, unsigned &Minor, 244 unsigned &Micro) const { 245 return getOSVersion(Major, Minor, Micro); 246 } 247 248 unsigned getDarwinMajorNumber() const { 249 return getOSMajorVersion(); 250 } 251 252 bool isOSVersionLT(unsigned Major, unsigned B_Minor, unsigned Micro) { 253 unsigned LHS[3]; 254 getOSVersion(LHS[0], LHS[1], LHS[2]); 255 256 if (LHS[0] != Major) 257 return LHS[0] < Major; 258 if (LHS[1] != Minor) 259 return LHS[1] < Minor; 260 if (LHS[2] != Micro) 261 return LHS[1] < Micro; 262 263 return false; 264 } 265 266 /// @} 267 /// @name Mutators 268 /// @{ 269 270 /// setArch - Set the architecture (first) component of the triple 271 /// to a known type. 272 void setArch(ArchType Kind); 273 274 /// setVendor - Set the vendor (second) component of the triple to a 275 /// known type. 276 void setVendor(VendorType Kind); 277 278 /// setOS - Set the operating system (third) component of the triple 279 /// to a known type. 280 void setOS(OSType Kind); 281 282 /// setEnvironment - Set the environment (fourth) component of the triple 283 /// to a known type. 284 void setEnvironment(EnvironmentType Kind); 285 286 /// setTriple - Set all components to the new triple \arg Str. 287 void setTriple(const Twine &Str); 288 289 /// setArchName - Set the architecture (first) component of the 290 /// triple by name. 291 void setArchName(StringRef Str); 292 293 /// setVendorName - Set the vendor (second) component of the triple 294 /// by name. 295 void setVendorName(StringRef Str); 296 297 /// setOSName - Set the operating system (third) component of the 298 /// triple by name. 299 void setOSName(StringRef Str); 300 301 /// setEnvironmentName - Set the optional environment (fourth) 302 /// component of the triple by name. 303 void setEnvironmentName(StringRef Str); 304 305 /// setOSAndEnvironmentName - Set the operating system and optional 306 /// environment components with a single string. 307 void setOSAndEnvironmentName(StringRef Str); 308 309 /// getArchNameForAssembler - Get an architecture name that is understood by 310 /// the target assembler. 311 const char *getArchNameForAssembler(); 312 313 /// @} 314 /// @name Static helpers for IDs. 315 /// @{ 316 317 /// getArchTypeName - Get the canonical name for the \arg Kind 318 /// architecture. 319 static const char *getArchTypeName(ArchType Kind); 320 321 /// getArchTypePrefix - Get the "prefix" canonical name for the \arg Kind 322 /// architecture. This is the prefix used by the architecture specific 323 /// builtins, and is suitable for passing to \see 324 /// Intrinsic::getIntrinsicForGCCBuiltin(). 325 /// 326 /// \return - The architecture prefix, or 0 if none is defined. 327 static const char *getArchTypePrefix(ArchType Kind); 328 329 /// getVendorTypeName - Get the canonical name for the \arg Kind 330 /// vendor. 331 static const char *getVendorTypeName(VendorType Kind); 332 333 /// getOSTypeName - Get the canonical name for the \arg Kind operating 334 /// system. 335 static const char *getOSTypeName(OSType Kind); 336 337 /// getEnvironmentTypeName - Get the canonical name for the \arg Kind 338 /// environment. 339 static const char *getEnvironmentTypeName(EnvironmentType Kind); 340 341 /// @} 342 /// @name Static helpers for converting alternate architecture names. 343 /// @{ 344 345 /// getArchTypeForLLVMName - The canonical type for the given LLVM 346 /// architecture name (e.g., "x86"). 347 static ArchType getArchTypeForLLVMName(StringRef Str); 348 349 /// getArchTypeForDarwinArchName - Get the architecture type for a "Darwin" 350 /// architecture name, for example as accepted by "gcc -arch" (see also 351 /// arch(3)). 352 static ArchType getArchTypeForDarwinArchName(StringRef Str); 353 354 /// @} 355}; 356 357} // End llvm namespace 358 359 360#endif 361