contrib/llvm/lib/Target/PowerPC/PPC.td

   1 //===-- PPC.td - Describe the PowerPC Target Machine -------*- tablegen -*-===//
   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 // This is the top level entry point for the PowerPC target.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 // Get the target-independent interfaces which we are implementing.
  15 //
  16 include "llvm/Target/Target.td"
  17
  18 //===----------------------------------------------------------------------===//
  19 // PowerPC Subtarget features.
  20 //
  21
  22 //===----------------------------------------------------------------------===//
  23 // CPU Directives                                                             //
  24 //===----------------------------------------------------------------------===//
  25
  26 def Directive440 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_440", "">;
  27 def Directive601 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_601", "">;
  28 def Directive602 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_602", "">;
  29 def Directive603 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
  30 def Directive604 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
  31 def Directive620 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
  32 def Directive7400: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_7400", "">;
  33 def Directive750 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_750", "">;
  34 def Directive970 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_970", "">;
  35 def Directive32  : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_32", "">;
  36 def Directive64  : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_64", "">;
  37 def DirectiveA2  : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_A2", "">;
  38 def DirectiveE500mc : SubtargetFeature<"", "DarwinDirective",
  39                                        "PPC::DIR_E500mc", "">;
  40 def DirectiveE5500  : SubtargetFeature<"", "DarwinDirective",
  41                                        "PPC::DIR_E5500", "">;
  42 def DirectivePwr3: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR3", "">;
  43 def DirectivePwr4: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR4", "">;
  44 def DirectivePwr5: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5", "">;
  45 def DirectivePwr5x
  46     : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5X", "">;
  47 def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">;
  48 def DirectivePwr6x
  49     : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">;
  50 def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">;
  51 def DirectivePwr8: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR8", "">;
  52 def DirectivePwr9: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR9", "">;
  53
  54 def Feature64Bit     : SubtargetFeature<"64bit","Has64BitSupport", "true",
  55                                         "Enable 64-bit instructions">;
  56 def FeatureHardFloat : SubtargetFeature<"hard-float", "HasHardFloat", "true",
  57                               "Enable floating-point instructions">;
  58 def Feature64BitRegs : SubtargetFeature<"64bitregs","Use64BitRegs", "true",
  59                               "Enable 64-bit registers usage for ppc32 [beta]">;
  60 def FeatureCRBits    : SubtargetFeature<"crbits", "UseCRBits", "true",
  61                               "Use condition-register bits individually">;
  62 def FeatureAltivec   : SubtargetFeature<"altivec","HasAltivec", "true",
  63                                         "Enable Altivec instructions",
  64                                         [FeatureHardFloat]>;
  65 def FeatureSPE       : SubtargetFeature<"spe","HasSPE", "true",
  66                                         "Enable SPE instructions",
  67                                         [FeatureHardFloat]>;
  68 def FeatureMFOCRF    : SubtargetFeature<"mfocrf","HasMFOCRF", "true",
  69                                         "Enable the MFOCRF instruction">;
  70 def FeatureFSqrt     : SubtargetFeature<"fsqrt","HasFSQRT", "true",
  71                                         "Enable the fsqrt instruction",
  72                                         [FeatureHardFloat]>;
  73 def FeatureFCPSGN    : SubtargetFeature<"fcpsgn", "HasFCPSGN", "true",
  74                                         "Enable the fcpsgn instruction",
  75                                         [FeatureHardFloat]>;
  76 def FeatureFRE       : SubtargetFeature<"fre", "HasFRE", "true",
  77                                         "Enable the fre instruction",
  78                                         [FeatureHardFloat]>;
  79 def FeatureFRES      : SubtargetFeature<"fres", "HasFRES", "true",
  80                                         "Enable the fres instruction",
  81                                         [FeatureHardFloat]>;
  82 def FeatureFRSQRTE   : SubtargetFeature<"frsqrte", "HasFRSQRTE", "true",
  83                                         "Enable the frsqrte instruction",
  84                                         [FeatureHardFloat]>;
  85 def FeatureFRSQRTES  : SubtargetFeature<"frsqrtes", "HasFRSQRTES", "true",
  86                                         "Enable the frsqrtes instruction",
  87                                         [FeatureHardFloat]>;
  88 def FeatureRecipPrec : SubtargetFeature<"recipprec", "HasRecipPrec", "true",
  89                               "Assume higher precision reciprocal estimates">;
  90 def FeatureSTFIWX    : SubtargetFeature<"stfiwx","HasSTFIWX", "true",
  91                                         "Enable the stfiwx instruction",
  92                                         [FeatureHardFloat]>;
  93 def FeatureLFIWAX    : SubtargetFeature<"lfiwax","HasLFIWAX", "true",
  94                                         "Enable the lfiwax instruction",
  95                                         [FeatureHardFloat]>;
  96 def FeatureFPRND     : SubtargetFeature<"fprnd", "HasFPRND", "true",
  97                                         "Enable the fri[mnpz] instructions",
  98                                         [FeatureHardFloat]>;
  99 def FeatureFPCVT     : SubtargetFeature<"fpcvt", "HasFPCVT", "true",
 100   "Enable fc[ft]* (unsigned and single-precision) and lfiwzx instructions",
 101                                         [FeatureHardFloat]>;
 102 def FeatureISEL      : SubtargetFeature<"isel","HasISEL", "true",
 103                                         "Enable the isel instruction">;
 104 def FeatureBPERMD    : SubtargetFeature<"bpermd", "HasBPERMD", "true",
 105                                         "Enable the bpermd instruction">;
 106 def FeatureExtDiv    : SubtargetFeature<"extdiv", "HasExtDiv", "true",
 107                                         "Enable extended divide instructions">;
 108 def FeatureLDBRX     : SubtargetFeature<"ldbrx","HasLDBRX", "true",
 109                                         "Enable the ldbrx instruction">;
 110 def FeatureCMPB      : SubtargetFeature<"cmpb", "HasCMPB", "true",
 111                                         "Enable the cmpb instruction">;
 112 def FeatureICBT      : SubtargetFeature<"icbt","HasICBT", "true",
 113                                         "Enable icbt instruction">;
 114 def FeatureBookE     : SubtargetFeature<"booke", "IsBookE", "true",
 115                                         "Enable Book E instructions",
 116                                         [FeatureICBT]>;
 117 def FeatureMSYNC     : SubtargetFeature<"msync", "HasOnlyMSYNC", "true",
 118                               "Has only the msync instruction instead of sync",
 119                               [FeatureBookE]>;
 120 def FeatureE500      : SubtargetFeature<"e500", "IsE500", "true",
 121                                         "Enable E500/E500mc instructions">;
 122 def FeaturePPC4xx    : SubtargetFeature<"ppc4xx", "IsPPC4xx", "true",
 123                                         "Enable PPC 4xx instructions">;
 124 def FeaturePPC6xx    : SubtargetFeature<"ppc6xx", "IsPPC6xx", "true",
 125                                         "Enable PPC 6xx instructions">;
 126 def FeatureQPX       : SubtargetFeature<"qpx","HasQPX", "true",
 127                                         "Enable QPX instructions",
 128                                         [FeatureHardFloat]>;
 129 def FeatureVSX       : SubtargetFeature<"vsx","HasVSX", "true",
 130                                         "Enable VSX instructions",
 131                                         [FeatureAltivec]>;
 132 def FeatureP8Altivec : SubtargetFeature<"power8-altivec", "HasP8Altivec", "true",
 133                                         "Enable POWER8 Altivec instructions",
 134                                         [FeatureAltivec]>;
 135 def FeatureP8Crypto : SubtargetFeature<"crypto", "HasP8Crypto", "true",
 136                                        "Enable POWER8 Crypto instructions",
 137                                        [FeatureP8Altivec]>;
 138 def FeatureP8Vector  : SubtargetFeature<"power8-vector", "HasP8Vector", "true",
 139                                         "Enable POWER8 vector instructions",
 140                                         [FeatureVSX, FeatureP8Altivec]>;
 141 def FeatureDirectMove :
 142   SubtargetFeature<"direct-move", "HasDirectMove", "true",
 143                    "Enable Power8 direct move instructions",
 144                    [FeatureVSX]>;
 145 def FeaturePartwordAtomic : SubtargetFeature<"partword-atomics",
 146                                              "HasPartwordAtomics", "true",
 147                                              "Enable l[bh]arx and st[bh]cx.">;
 148 def FeatureInvariantFunctionDescriptors :
 149   SubtargetFeature<"invariant-function-descriptors",
 150                    "HasInvariantFunctionDescriptors", "true",
 151                    "Assume function descriptors are invariant">;
 152 def FeatureLongCall : SubtargetFeature<"longcall", "UseLongCalls", "true",
 153                                        "Always use indirect calls">;
 154 def FeatureHTM : SubtargetFeature<"htm", "HasHTM", "true",
 155                                   "Enable Hardware Transactional Memory instructions">;
 156 def FeatureMFTB   : SubtargetFeature<"", "FeatureMFTB", "true",
 157                                         "Implement mftb using the mfspr instruction">;
 158 def FeatureFusion : SubtargetFeature<"fusion", "HasFusion", "true",
 159                                      "Target supports add/load integer fusion.">;
 160 def FeatureFloat128 :
 161   SubtargetFeature<"float128", "HasFloat128", "true",
 162                    "Enable the __float128 data type for IEEE-754R Binary128.",
 163                    [FeatureVSX]>;
 164 def FeaturePOPCNTD   : SubtargetFeature<"popcntd","HasPOPCNTD",
 165                                         "POPCNTD_Fast",
 166                                         "Enable the popcnt[dw] instructions">;
 167 // Note that for the a2/a2q processor models we should not use popcnt[dw] by
 168 // default. These processors do support the instructions, but they're
 169 // microcoded, and the software emulation is about twice as fast.
 170 def FeatureSlowPOPCNTD : SubtargetFeature<"slow-popcntd","HasPOPCNTD",
 171                                           "POPCNTD_Slow",
 172                                           "Has slow popcnt[dw] instructions">;
 173
 174 def DeprecatedDST    : SubtargetFeature<"", "DeprecatedDST", "true",
 175   "Treat vector data stream cache control instructions as deprecated">;
 176
 177 def FeatureISA3_0 : SubtargetFeature<"isa-v30-instructions", "IsISA3_0",
 178                                      "true",
 179                                      "Enable instructions added in ISA 3.0.">;
 180 def FeatureP9Altivec : SubtargetFeature<"power9-altivec", "HasP9Altivec", "true",
 181                                         "Enable POWER9 Altivec instructions",
 182                                         [FeatureISA3_0, FeatureP8Altivec]>;
 183 def FeatureP9Vector  : SubtargetFeature<"power9-vector", "HasP9Vector", "true",
 184                                         "Enable POWER9 vector instructions",
 185                                         [FeatureISA3_0, FeatureP8Vector,
 186                                          FeatureP9Altivec]>;
 187
 188 // Since new processors generally contain a superset of features of those that
 189 // came before them, the idea is to make implementations of new processors
 190 // less error prone and easier to read.
 191 // Namely:
 192 //     list<SubtargetFeature> Power8FeatureList = ...
 193 //     list<SubtargetFeature> FutureProcessorSpecificFeatureList =
 194 //         [ features that Power8 does not support ]
 195 //     list<SubtargetFeature> FutureProcessorFeatureList =
 196 //         !listconcat(Power8FeatureList, FutureProcessorSpecificFeatureList)
 197
 198 // Makes it explicit and obvious what is new in FutureProcesor vs. Power8 as
 199 // well as providing a single point of definition if the feature set will be
 200 // used elsewhere.
 201 def ProcessorFeatures {
 202   list<SubtargetFeature> Power7FeatureList =
 203       [DirectivePwr7, FeatureAltivec, FeatureVSX,
 204        FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
 205        FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
 206        FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
 207        FeatureFPRND, FeatureFPCVT, FeatureISEL,
 208        FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX,
 209        Feature64Bit /*, Feature64BitRegs */,
 210        FeatureBPERMD, FeatureExtDiv,
 211        FeatureMFTB, DeprecatedDST];
 212   list<SubtargetFeature> Power8SpecificFeatures =
 213       [DirectivePwr8, FeatureP8Altivec, FeatureP8Vector, FeatureP8Crypto,
 214        FeatureHTM, FeatureDirectMove, FeatureICBT, FeaturePartwordAtomic,
 215        FeatureFusion];
 216   list<SubtargetFeature> Power8FeatureList =
 217       !listconcat(Power7FeatureList, Power8SpecificFeatures);
 218   list<SubtargetFeature> Power9SpecificFeatures =
 219       [DirectivePwr9, FeatureP9Altivec, FeatureP9Vector, FeatureISA3_0];
 220   list<SubtargetFeature> Power9FeatureList =
 221       !listconcat(Power8FeatureList, Power9SpecificFeatures);
 222 }
 223
 224 // Note: Future features to add when support is extended to more
 225 // recent ISA levels:
 226 //
 227 // DFP          p6, p6x, p7        decimal floating-point instructions
 228 // POPCNTB      p5 through p7      popcntb and related instructions
 229
 230 //===----------------------------------------------------------------------===//
 231 // Classes used for relation maps.
 232 //===----------------------------------------------------------------------===//
 233 // RecFormRel - Filter class used to relate non-record-form instructions with
 234 // their record-form variants.
 235 class RecFormRel;
 236
 237 // AltVSXFMARel - Filter class used to relate the primary addend-killing VSX
 238 // FMA instruction forms with their corresponding factor-killing forms.
 239 class AltVSXFMARel {
 240   bit IsVSXFMAAlt = 0;
 241 }
 242
 243 //===----------------------------------------------------------------------===//
 244 // Relation Map Definitions.
 245 //===----------------------------------------------------------------------===//
 246
 247 def getRecordFormOpcode : InstrMapping {
 248   let FilterClass = "RecFormRel";
 249   // Instructions with the same BaseName and Interpretation64Bit values
 250   // form a row.
 251   let RowFields = ["BaseName", "Interpretation64Bit"];
 252   // Instructions with the same RC value form a column.
 253   let ColFields = ["RC"];
 254   // The key column are the non-record-form instructions.
 255   let KeyCol = ["0"];
 256   // Value columns RC=1
 257   let ValueCols = [["1"]];
 258 }
 259
 260 def getNonRecordFormOpcode : InstrMapping {
 261   let FilterClass = "RecFormRel";
 262   // Instructions with the same BaseName and Interpretation64Bit values
 263   // form a row.
 264   let RowFields = ["BaseName", "Interpretation64Bit"];
 265   // Instructions with the same RC value form a column.
 266   let ColFields = ["RC"];
 267   // The key column are the record-form instructions.
 268   let KeyCol = ["1"];
 269   // Value columns are RC=0
 270   let ValueCols = [["0"]];
 271 }
 272
 273 def getAltVSXFMAOpcode : InstrMapping {
 274   let FilterClass = "AltVSXFMARel";
 275   // Instructions with the same BaseName and Interpretation64Bit values
 276   // form a row.
 277   let RowFields = ["BaseName"];
 278   // Instructions with the same RC value form a column.
 279   let ColFields = ["IsVSXFMAAlt"];
 280   // The key column are the (default) addend-killing instructions.
 281   let KeyCol = ["0"];
 282   // Value columns IsVSXFMAAlt=1
 283   let ValueCols = [["1"]];
 284 }
 285
 286 //===----------------------------------------------------------------------===//
 287 // Register File Description
 288 //===----------------------------------------------------------------------===//
 289
 290 include "PPCRegisterInfo.td"
 291 include "PPCSchedule.td"
 292
 293 //===----------------------------------------------------------------------===//
 294 // PowerPC processors supported.
 295 //
 296
 297 def : Processor<"generic", G3Itineraries, [Directive32, FeatureHardFloat,
 298                                            FeatureMFTB]>;
 299 def : ProcessorModel<"440", PPC440Model, [Directive440, FeatureISEL,
 300                                           FeatureFRES, FeatureFRSQRTE,
 301                                           FeatureICBT, FeatureBookE,
 302                                           FeatureMSYNC, FeatureMFTB]>;
 303 def : ProcessorModel<"450", PPC440Model, [Directive440, FeatureISEL,
 304                                           FeatureFRES, FeatureFRSQRTE,
 305                                           FeatureICBT, FeatureBookE,
 306                                           FeatureMSYNC, FeatureMFTB]>;
 307 def : Processor<"601", G3Itineraries, [Directive601, FeatureHardFloat]>;
 308 def : Processor<"602", G3Itineraries, [Directive602, FeatureHardFloat,
 309                                        FeatureMFTB]>;
 310 def : Processor<"603", G3Itineraries, [Directive603,
 311                                        FeatureFRES, FeatureFRSQRTE,
 312                                        FeatureMFTB]>;
 313 def : Processor<"603e", G3Itineraries, [Directive603,
 314                                         FeatureFRES, FeatureFRSQRTE,
 315                                         FeatureMFTB]>;
 316 def : Processor<"603ev", G3Itineraries, [Directive603,
 317                                          FeatureFRES, FeatureFRSQRTE,
 318                                          FeatureMFTB]>;
 319 def : Processor<"604", G3Itineraries, [Directive604,
 320                                        FeatureFRES, FeatureFRSQRTE,
 321                                        FeatureMFTB]>;
 322 def : Processor<"604e", G3Itineraries, [Directive604,
 323                                         FeatureFRES, FeatureFRSQRTE,
 324                                         FeatureMFTB]>;
 325 def : Processor<"620", G3Itineraries, [Directive620,
 326                                        FeatureFRES, FeatureFRSQRTE,
 327                                        FeatureMFTB]>;
 328 def : Processor<"750", G4Itineraries, [Directive750,
 329                                        FeatureFRES, FeatureFRSQRTE,
 330                                        FeatureMFTB]>;
 331 def : Processor<"g3", G3Itineraries, [Directive750,
 332                                       FeatureFRES, FeatureFRSQRTE,
 333                                       FeatureMFTB]>;
 334 def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec,
 335                                         FeatureFRES, FeatureFRSQRTE,
 336                                         FeatureMFTB]>;
 337 def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec,
 338                                       FeatureFRES, FeatureFRSQRTE,
 339                                       FeatureMFTB]>;
 340 def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec,
 341                                             FeatureFRES, FeatureFRSQRTE,
 342                                             FeatureMFTB]>;
 343 def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec,
 344                                            FeatureFRES, FeatureFRSQRTE,
 345                                            FeatureMFTB]>;
 346
 347 def : ProcessorModel<"970", G5Model,
 348                   [Directive970, FeatureAltivec,
 349                    FeatureMFOCRF, FeatureFSqrt,
 350                    FeatureFRES, FeatureFRSQRTE, FeatureSTFIWX,
 351                    Feature64Bit /*, Feature64BitRegs */,
 352                    FeatureMFTB]>;
 353 def : ProcessorModel<"g5", G5Model,
 354                   [Directive970, FeatureAltivec,
 355                    FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
 356                    FeatureFRES, FeatureFRSQRTE,
 357                    Feature64Bit /*, Feature64BitRegs */,
 358                    FeatureMFTB, DeprecatedDST]>;
 359 def : ProcessorModel<"e500mc", PPCE500mcModel,
 360                   [DirectiveE500mc,
 361                    FeatureSTFIWX, FeatureICBT, FeatureBookE,
 362                    FeatureISEL, FeatureMFTB]>;
 363 def : ProcessorModel<"e5500", PPCE5500Model,
 364                   [DirectiveE5500, FeatureMFOCRF, Feature64Bit,
 365                    FeatureSTFIWX, FeatureICBT, FeatureBookE,
 366                    FeatureISEL, FeatureMFTB]>;
 367 def : ProcessorModel<"a2", PPCA2Model,
 368                   [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
 369                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 370                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 371                    FeatureSTFIWX, FeatureLFIWAX,
 372                    FeatureFPRND, FeatureFPCVT, FeatureISEL,
 373                    FeatureSlowPOPCNTD, FeatureCMPB, FeatureLDBRX,
 374                    Feature64Bit /*, Feature64BitRegs */, FeatureMFTB]>;
 375 def : ProcessorModel<"a2q", PPCA2Model,
 376                   [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
 377                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 378                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 379                    FeatureSTFIWX, FeatureLFIWAX,
 380                    FeatureFPRND, FeatureFPCVT, FeatureISEL,
 381                    FeatureSlowPOPCNTD, FeatureCMPB, FeatureLDBRX,
 382                    Feature64Bit /*, Feature64BitRegs */, FeatureQPX,
 383                    FeatureMFTB]>;
 384 def : ProcessorModel<"pwr3", G5Model,
 385                   [DirectivePwr3, FeatureAltivec,
 386                    FeatureFRES, FeatureFRSQRTE, FeatureMFOCRF,
 387                    FeatureSTFIWX, Feature64Bit]>;
 388 def : ProcessorModel<"pwr4", G5Model,
 389                   [DirectivePwr4, FeatureAltivec, FeatureMFOCRF,
 390                    FeatureFSqrt, FeatureFRES, FeatureFRSQRTE,
 391                    FeatureSTFIWX, Feature64Bit, FeatureMFTB]>;
 392 def : ProcessorModel<"pwr5", G5Model,
 393                   [DirectivePwr5, FeatureAltivec, FeatureMFOCRF,
 394                    FeatureFSqrt, FeatureFRE, FeatureFRES,
 395                    FeatureFRSQRTE, FeatureFRSQRTES,
 396                    FeatureSTFIWX, Feature64Bit,
 397                    FeatureMFTB, DeprecatedDST]>;
 398 def : ProcessorModel<"pwr5x", G5Model,
 399                   [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
 400                    FeatureFSqrt, FeatureFRE, FeatureFRES,
 401                    FeatureFRSQRTE, FeatureFRSQRTES,
 402                    FeatureSTFIWX, FeatureFPRND, Feature64Bit,
 403                    FeatureMFTB, DeprecatedDST]>;
 404 def : ProcessorModel<"pwr6", G5Model,
 405                   [DirectivePwr6, FeatureAltivec,
 406                    FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
 407                    FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
 408                    FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
 409                    FeatureFPRND, Feature64Bit /*, Feature64BitRegs */,
 410                    FeatureMFTB, DeprecatedDST]>;
 411 def : ProcessorModel<"pwr6x", G5Model,
 412                   [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
 413                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 414                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 415                    FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
 416                    FeatureFPRND, Feature64Bit,
 417                    FeatureMFTB, DeprecatedDST]>;
 418 def : ProcessorModel<"pwr7", P7Model, ProcessorFeatures.Power7FeatureList>;
 419 def : ProcessorModel<"pwr8", P8Model, ProcessorFeatures.Power8FeatureList>;
 420 def : ProcessorModel<"pwr9", P9Model, ProcessorFeatures.Power9FeatureList>;
 421 def : Processor<"ppc", G3Itineraries, [Directive32, FeatureHardFloat,
 422                                        FeatureMFTB]>;
 423 def : Processor<"ppc32", G3Itineraries, [Directive32, FeatureHardFloat,
 424                                          FeatureMFTB]>;
 425 def : ProcessorModel<"ppc64", G5Model,
 426                   [Directive64, FeatureAltivec,
 427                    FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
 428                    FeatureFRSQRTE, FeatureSTFIWX,
 429                    Feature64Bit /*, Feature64BitRegs */,
 430                    FeatureMFTB]>;
 431 def : ProcessorModel<"ppc64le", P8Model, ProcessorFeatures.Power8FeatureList>;
 432
 433 //===----------------------------------------------------------------------===//
 434 // Calling Conventions
 435 //===----------------------------------------------------------------------===//
 436
 437 include "PPCCallingConv.td"
 438
 439 def PPCInstrInfo : InstrInfo {
 440   let isLittleEndianEncoding = 1;
 441
 442   // FIXME: Unset this when no longer needed!
 443   let decodePositionallyEncodedOperands = 1;
 444
 445   let noNamedPositionallyEncodedOperands = 1;
 446 }
 447
 448 def PPCAsmParser : AsmParser {
 449   let ShouldEmitMatchRegisterName = 0;
 450 }
 451
 452 def PPCAsmParserVariant : AsmParserVariant {
 453   int Variant = 0;
 454
 455   // We do not use hard coded registers in asm strings.  However, some
 456   // InstAlias definitions use immediate literals.  Set RegisterPrefix
 457   // so that those are not misinterpreted as registers.
 458   string RegisterPrefix = "%";
 459   string BreakCharacters = ".";
 460 }
 461
 462 def PPC : Target {
 463   // Information about the instructions.
 464   let InstructionSet = PPCInstrInfo;
 465
 466   let AssemblyParsers = [PPCAsmParser];
 467   let AssemblyParserVariants = [PPCAsmParserVariant];
 468 }