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 DirectiveE500   : SubtargetFeature<"", "DarwinDirective",
  39                                        "PPC::DIR_E500", "">;
  40 def DirectiveE500mc : SubtargetFeature<"", "DarwinDirective",
  41                                        "PPC::DIR_E500mc", "">;
  42 def DirectiveE5500  : SubtargetFeature<"", "DarwinDirective",
  43                                        "PPC::DIR_E5500", "">;
  44 def DirectivePwr3: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR3", "">;
  45 def DirectivePwr4: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR4", "">;
  46 def DirectivePwr5: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5", "">;
  47 def DirectivePwr5x
  48     : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5X", "">;
  49 def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">;
  50 def DirectivePwr6x
  51     : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">;
  52 def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">;
  53 def DirectivePwr8: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR8", "">;
  54 def DirectivePwr9: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR9", "">;
  55
  56 def Feature64Bit     : SubtargetFeature<"64bit","Has64BitSupport", "true",
  57                                         "Enable 64-bit instructions">;
  58 def FeatureHardFloat : SubtargetFeature<"hard-float", "HasHardFloat", "true",
  59                               "Enable floating-point instructions">;
  60 def Feature64BitRegs : SubtargetFeature<"64bitregs","Use64BitRegs", "true",
  61                               "Enable 64-bit registers usage for ppc32 [beta]">;
  62 def FeatureCRBits    : SubtargetFeature<"crbits", "UseCRBits", "true",
  63                               "Use condition-register bits individually">;
  64 def FeatureFPU       : SubtargetFeature<"fpu","HasFPU","true",
  65                                         "Enable classic FPU instructions",
  66                                         [FeatureHardFloat]>;
  67 def FeatureAltivec   : SubtargetFeature<"altivec","HasAltivec", "true",
  68                                         "Enable Altivec instructions",
  69                                         [FeatureFPU]>;
  70 def FeatureSPE       : SubtargetFeature<"spe","HasSPE", "true",
  71                                         "Enable SPE instructions",
  72                                         [FeatureHardFloat]>;
  73 def FeatureMFOCRF    : SubtargetFeature<"mfocrf","HasMFOCRF", "true",
  74                                         "Enable the MFOCRF instruction">;
  75 def FeatureFSqrt     : SubtargetFeature<"fsqrt","HasFSQRT", "true",
  76                                         "Enable the fsqrt instruction",
  77                                         [FeatureFPU]>;
  78 def FeatureFCPSGN    : SubtargetFeature<"fcpsgn", "HasFCPSGN", "true",
  79                                         "Enable the fcpsgn instruction",
  80                                         [FeatureFPU]>;
  81 def FeatureFRE       : SubtargetFeature<"fre", "HasFRE", "true",
  82                                         "Enable the fre instruction",
  83                                         [FeatureFPU]>;
  84 def FeatureFRES      : SubtargetFeature<"fres", "HasFRES", "true",
  85                                         "Enable the fres instruction",
  86                                         [FeatureFPU]>;
  87 def FeatureFRSQRTE   : SubtargetFeature<"frsqrte", "HasFRSQRTE", "true",
  88                                         "Enable the frsqrte instruction",
  89                                         [FeatureFPU]>;
  90 def FeatureFRSQRTES  : SubtargetFeature<"frsqrtes", "HasFRSQRTES", "true",
  91                                         "Enable the frsqrtes instruction",
  92                                         [FeatureFPU]>;
  93 def FeatureRecipPrec : SubtargetFeature<"recipprec", "HasRecipPrec", "true",
  94                               "Assume higher precision reciprocal estimates">;
  95 def FeatureSTFIWX    : SubtargetFeature<"stfiwx","HasSTFIWX", "true",
  96                                         "Enable the stfiwx instruction",
  97                                         [FeatureFPU]>;
  98 def FeatureLFIWAX    : SubtargetFeature<"lfiwax","HasLFIWAX", "true",
  99                                         "Enable the lfiwax instruction",
 100                                         [FeatureFPU]>;
 101 def FeatureFPRND     : SubtargetFeature<"fprnd", "HasFPRND", "true",
 102                                         "Enable the fri[mnpz] instructions",
 103                                         [FeatureFPU]>;
 104 def FeatureFPCVT     : SubtargetFeature<"fpcvt", "HasFPCVT", "true",
 105   "Enable fc[ft]* (unsigned and single-precision) and lfiwzx instructions",
 106                                         [FeatureFPU]>;
 107 def FeatureISEL      : SubtargetFeature<"isel","HasISEL", "true",
 108                                         "Enable the isel instruction">;
 109 def FeatureBPERMD    : SubtargetFeature<"bpermd", "HasBPERMD", "true",
 110                                         "Enable the bpermd instruction">;
 111 def FeatureExtDiv    : SubtargetFeature<"extdiv", "HasExtDiv", "true",
 112                                         "Enable extended divide instructions">;
 113 def FeatureLDBRX     : SubtargetFeature<"ldbrx","HasLDBRX", "true",
 114                                         "Enable the ldbrx instruction">;
 115 def FeatureCMPB      : SubtargetFeature<"cmpb", "HasCMPB", "true",
 116                                         "Enable the cmpb instruction">;
 117 def FeatureICBT      : SubtargetFeature<"icbt","HasICBT", "true",
 118                                         "Enable icbt instruction">;
 119 def FeatureBookE     : SubtargetFeature<"booke", "IsBookE", "true",
 120                                         "Enable Book E instructions",
 121                                         [FeatureICBT]>;
 122 def FeatureMSYNC     : SubtargetFeature<"msync", "HasOnlyMSYNC", "true",
 123                               "Has only the msync instruction instead of sync",
 124                               [FeatureBookE]>;
 125 def FeatureE500      : SubtargetFeature<"e500", "IsE500", "true",
 126                                         "Enable E500/E500mc instructions">;
 127 def FeatureSecurePlt : SubtargetFeature<"secure-plt","SecurePlt", "true",
 128                                         "Enable secure plt mode">;
 129 def FeaturePPC4xx    : SubtargetFeature<"ppc4xx", "IsPPC4xx", "true",
 130                                         "Enable PPC 4xx instructions">;
 131 def FeaturePPC6xx    : SubtargetFeature<"ppc6xx", "IsPPC6xx", "true",
 132                                         "Enable PPC 6xx instructions">;
 133 def FeatureQPX       : SubtargetFeature<"qpx","HasQPX", "true",
 134                                         "Enable QPX instructions",
 135                                         [FeatureFPU]>;
 136 def FeatureVSX       : SubtargetFeature<"vsx","HasVSX", "true",
 137                                         "Enable VSX instructions",
 138                                         [FeatureAltivec]>;
 139 def FeatureP8Altivec : SubtargetFeature<"power8-altivec", "HasP8Altivec", "true",
 140                                         "Enable POWER8 Altivec instructions",
 141                                         [FeatureAltivec]>;
 142 def FeatureP8Crypto : SubtargetFeature<"crypto", "HasP8Crypto", "true",
 143                                        "Enable POWER8 Crypto instructions",
 144                                        [FeatureP8Altivec]>;
 145 def FeatureP8Vector  : SubtargetFeature<"power8-vector", "HasP8Vector", "true",
 146                                         "Enable POWER8 vector instructions",
 147                                         [FeatureVSX, FeatureP8Altivec]>;
 148 def FeatureDirectMove :
 149   SubtargetFeature<"direct-move", "HasDirectMove", "true",
 150                    "Enable Power8 direct move instructions",
 151                    [FeatureVSX]>;
 152 def FeaturePartwordAtomic : SubtargetFeature<"partword-atomics",
 153                                              "HasPartwordAtomics", "true",
 154                                              "Enable l[bh]arx and st[bh]cx.">;
 155 def FeatureInvariantFunctionDescriptors :
 156   SubtargetFeature<"invariant-function-descriptors",
 157                    "HasInvariantFunctionDescriptors", "true",
 158                    "Assume function descriptors are invariant">;
 159 def FeatureLongCall : SubtargetFeature<"longcall", "UseLongCalls", "true",
 160                                        "Always use indirect calls">;
 161 def FeatureHTM : SubtargetFeature<"htm", "HasHTM", "true",
 162                                   "Enable Hardware Transactional Memory instructions">;
 163 def FeatureMFTB   : SubtargetFeature<"", "FeatureMFTB", "true",
 164                                         "Implement mftb using the mfspr instruction">;
 165 def FeatureFusion : SubtargetFeature<"fusion", "HasFusion", "true",
 166                                      "Target supports add/load integer fusion.">;
 167 def FeatureFloat128 :
 168   SubtargetFeature<"float128", "HasFloat128", "true",
 169                    "Enable the __float128 data type for IEEE-754R Binary128.",
 170                    [FeatureVSX]>;
 171 def FeaturePOPCNTD   : SubtargetFeature<"popcntd","HasPOPCNTD",
 172                                         "POPCNTD_Fast",
 173                                         "Enable the popcnt[dw] instructions">;
 174 // Note that for the a2/a2q processor models we should not use popcnt[dw] by
 175 // default. These processors do support the instructions, but they're
 176 // microcoded, and the software emulation is about twice as fast.
 177 def FeatureSlowPOPCNTD : SubtargetFeature<"slow-popcntd","HasPOPCNTD",
 178                                           "POPCNTD_Slow",
 179                                           "Has slow popcnt[dw] instructions">;
 180
 181 def DeprecatedDST    : SubtargetFeature<"", "DeprecatedDST", "true",
 182   "Treat vector data stream cache control instructions as deprecated">;
 183
 184 def FeatureISA3_0 : SubtargetFeature<"isa-v30-instructions", "IsISA3_0",
 185                                      "true",
 186                                      "Enable instructions added in ISA 3.0.">;
 187 def FeatureP9Altivec : SubtargetFeature<"power9-altivec", "HasP9Altivec", "true",
 188                                         "Enable POWER9 Altivec instructions",
 189                                         [FeatureISA3_0, FeatureP8Altivec]>;
 190 def FeatureP9Vector  : SubtargetFeature<"power9-vector", "HasP9Vector", "true",
 191                                         "Enable POWER9 vector instructions",
 192                                         [FeatureISA3_0, FeatureP8Vector,
 193                                          FeatureP9Altivec]>;
 194
 195 // Since new processors generally contain a superset of features of those that
 196 // came before them, the idea is to make implementations of new processors
 197 // less error prone and easier to read.
 198 // Namely:
 199 //     list<SubtargetFeature> Power8FeatureList = ...
 200 //     list<SubtargetFeature> FutureProcessorSpecificFeatureList =
 201 //         [ features that Power8 does not support ]
 202 //     list<SubtargetFeature> FutureProcessorFeatureList =
 203 //         !listconcat(Power8FeatureList, FutureProcessorSpecificFeatureList)
 204
 205 // Makes it explicit and obvious what is new in FutureProcesor vs. Power8 as
 206 // well as providing a single point of definition if the feature set will be
 207 // used elsewhere.
 208 def ProcessorFeatures {
 209   list<SubtargetFeature> Power7FeatureList =
 210       [DirectivePwr7, FeatureAltivec, FeatureVSX,
 211        FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
 212        FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
 213        FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
 214        FeatureFPRND, FeatureFPCVT, FeatureISEL,
 215        FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX,
 216        Feature64Bit /*, Feature64BitRegs */,
 217        FeatureBPERMD, FeatureExtDiv,
 218        FeatureMFTB, DeprecatedDST];
 219   list<SubtargetFeature> Power8SpecificFeatures =
 220       [DirectivePwr8, FeatureP8Altivec, FeatureP8Vector, FeatureP8Crypto,
 221        FeatureHTM, FeatureDirectMove, FeatureICBT, FeaturePartwordAtomic,
 222        FeatureFusion];
 223   list<SubtargetFeature> Power8FeatureList =
 224       !listconcat(Power7FeatureList, Power8SpecificFeatures);
 225   list<SubtargetFeature> Power9SpecificFeatures =
 226       [DirectivePwr9, FeatureP9Altivec, FeatureP9Vector, FeatureISA3_0];
 227   list<SubtargetFeature> Power9FeatureList =
 228       !listconcat(Power8FeatureList, Power9SpecificFeatures);
 229 }
 230
 231 // Note: Future features to add when support is extended to more
 232 // recent ISA levels:
 233 //
 234 // DFP          p6, p6x, p7        decimal floating-point instructions
 235 // POPCNTB      p5 through p7      popcntb and related instructions
 236
 237 //===----------------------------------------------------------------------===//
 238 // Classes used for relation maps.
 239 //===----------------------------------------------------------------------===//
 240 // RecFormRel - Filter class used to relate non-record-form instructions with
 241 // their record-form variants.
 242 class RecFormRel;
 243
 244 // AltVSXFMARel - Filter class used to relate the primary addend-killing VSX
 245 // FMA instruction forms with their corresponding factor-killing forms.
 246 class AltVSXFMARel {
 247   bit IsVSXFMAAlt = 0;
 248 }
 249
 250 //===----------------------------------------------------------------------===//
 251 // Relation Map Definitions.
 252 //===----------------------------------------------------------------------===//
 253
 254 def getRecordFormOpcode : InstrMapping {
 255   let FilterClass = "RecFormRel";
 256   // Instructions with the same BaseName and Interpretation64Bit values
 257   // form a row.
 258   let RowFields = ["BaseName", "Interpretation64Bit"];
 259   // Instructions with the same RC value form a column.
 260   let ColFields = ["RC"];
 261   // The key column are the non-record-form instructions.
 262   let KeyCol = ["0"];
 263   // Value columns RC=1
 264   let ValueCols = [["1"]];
 265 }
 266
 267 def getNonRecordFormOpcode : InstrMapping {
 268   let FilterClass = "RecFormRel";
 269   // Instructions with the same BaseName and Interpretation64Bit values
 270   // form a row.
 271   let RowFields = ["BaseName", "Interpretation64Bit"];
 272   // Instructions with the same RC value form a column.
 273   let ColFields = ["RC"];
 274   // The key column are the record-form instructions.
 275   let KeyCol = ["1"];
 276   // Value columns are RC=0
 277   let ValueCols = [["0"]];
 278 }
 279
 280 def getAltVSXFMAOpcode : InstrMapping {
 281   let FilterClass = "AltVSXFMARel";
 282   // Instructions with the same BaseName and Interpretation64Bit values
 283   // form a row.
 284   let RowFields = ["BaseName"];
 285   // Instructions with the same RC value form a column.
 286   let ColFields = ["IsVSXFMAAlt"];
 287   // The key column are the (default) addend-killing instructions.
 288   let KeyCol = ["0"];
 289   // Value columns IsVSXFMAAlt=1
 290   let ValueCols = [["1"]];
 291 }
 292
 293 //===----------------------------------------------------------------------===//
 294 // Register File Description
 295 //===----------------------------------------------------------------------===//
 296
 297 include "PPCRegisterInfo.td"
 298 include "PPCSchedule.td"
 299
 300 //===----------------------------------------------------------------------===//
 301 // PowerPC processors supported.
 302 //
 303
 304 def : Processor<"generic", G3Itineraries, [Directive32, FeatureHardFloat,
 305                                            FeatureMFTB]>;
 306 def : ProcessorModel<"440", PPC440Model, [Directive440, FeatureISEL,
 307                                           FeatureFRES, FeatureFRSQRTE,
 308                                           FeatureICBT, FeatureBookE,
 309                                           FeatureMSYNC, FeatureMFTB]>;
 310 def : ProcessorModel<"450", PPC440Model, [Directive440, FeatureISEL,
 311                                           FeatureFRES, FeatureFRSQRTE,
 312                                           FeatureICBT, FeatureBookE,
 313                                           FeatureMSYNC, FeatureMFTB]>;
 314 def : Processor<"601", G3Itineraries, [Directive601, FeatureFPU]>;
 315 def : Processor<"602", G3Itineraries, [Directive602, FeatureFPU,
 316                                        FeatureMFTB]>;
 317 def : Processor<"603", G3Itineraries, [Directive603,
 318                                        FeatureFRES, FeatureFRSQRTE,
 319                                        FeatureMFTB]>;
 320 def : Processor<"603e", G3Itineraries, [Directive603,
 321                                         FeatureFRES, FeatureFRSQRTE,
 322                                         FeatureMFTB]>;
 323 def : Processor<"603ev", G3Itineraries, [Directive603,
 324                                          FeatureFRES, FeatureFRSQRTE,
 325                                          FeatureMFTB]>;
 326 def : Processor<"604", G3Itineraries, [Directive604,
 327                                        FeatureFRES, FeatureFRSQRTE,
 328                                        FeatureMFTB]>;
 329 def : Processor<"604e", G3Itineraries, [Directive604,
 330                                         FeatureFRES, FeatureFRSQRTE,
 331                                         FeatureMFTB]>;
 332 def : Processor<"620", G3Itineraries, [Directive620,
 333                                        FeatureFRES, FeatureFRSQRTE,
 334                                        FeatureMFTB]>;
 335 def : Processor<"750", G4Itineraries, [Directive750,
 336                                        FeatureFRES, FeatureFRSQRTE,
 337                                        FeatureMFTB]>;
 338 def : Processor<"g3", G3Itineraries, [Directive750,
 339                                       FeatureFRES, FeatureFRSQRTE,
 340                                       FeatureMFTB]>;
 341 def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec,
 342                                         FeatureFRES, FeatureFRSQRTE,
 343                                         FeatureMFTB]>;
 344 def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec,
 345                                       FeatureFRES, FeatureFRSQRTE,
 346                                       FeatureMFTB]>;
 347 def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec,
 348                                             FeatureFRES, FeatureFRSQRTE,
 349                                             FeatureMFTB]>;
 350 def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec,
 351                                            FeatureFRES, FeatureFRSQRTE,
 352                                            FeatureMFTB]>;
 353
 354 def : ProcessorModel<"970", G5Model,
 355                   [Directive970, FeatureAltivec,
 356                    FeatureMFOCRF, FeatureFSqrt,
 357                    FeatureFRES, FeatureFRSQRTE, FeatureSTFIWX,
 358                    Feature64Bit /*, Feature64BitRegs */,
 359                    FeatureMFTB]>;
 360 def : ProcessorModel<"g5", G5Model,
 361                   [Directive970, FeatureAltivec,
 362                    FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
 363                    FeatureFRES, FeatureFRSQRTE,
 364                    Feature64Bit /*, Feature64BitRegs */,
 365                    FeatureMFTB, DeprecatedDST]>;
 366 def : ProcessorModel<"e500", PPCE500Model,
 367                   [DirectiveE500,
 368                    FeatureICBT, FeatureBookE,
 369                    FeatureISEL, FeatureMFTB]>;
 370 def : ProcessorModel<"e500mc", PPCE500mcModel,
 371                   [DirectiveE500mc,
 372                    FeatureSTFIWX, FeatureICBT, FeatureBookE,
 373                    FeatureISEL, FeatureMFTB]>;
 374 def : ProcessorModel<"e5500", PPCE5500Model,
 375                   [DirectiveE5500, FeatureMFOCRF, Feature64Bit,
 376                    FeatureSTFIWX, FeatureICBT, FeatureBookE,
 377                    FeatureISEL, FeatureMFTB]>;
 378 def : ProcessorModel<"a2", PPCA2Model,
 379                   [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
 380                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 381                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 382                    FeatureSTFIWX, FeatureLFIWAX,
 383                    FeatureFPRND, FeatureFPCVT, FeatureISEL,
 384                    FeatureSlowPOPCNTD, FeatureCMPB, FeatureLDBRX,
 385                    Feature64Bit /*, Feature64BitRegs */, FeatureMFTB]>;
 386 def : ProcessorModel<"a2q", PPCA2Model,
 387                   [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
 388                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 389                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 390                    FeatureSTFIWX, FeatureLFIWAX,
 391                    FeatureFPRND, FeatureFPCVT, FeatureISEL,
 392                    FeatureSlowPOPCNTD, FeatureCMPB, FeatureLDBRX,
 393                    Feature64Bit /*, Feature64BitRegs */, FeatureQPX,
 394                    FeatureMFTB]>;
 395 def : ProcessorModel<"pwr3", G5Model,
 396                   [DirectivePwr3, FeatureAltivec,
 397                    FeatureFRES, FeatureFRSQRTE, FeatureMFOCRF,
 398                    FeatureSTFIWX, Feature64Bit]>;
 399 def : ProcessorModel<"pwr4", G5Model,
 400                   [DirectivePwr4, FeatureAltivec, FeatureMFOCRF,
 401                    FeatureFSqrt, FeatureFRES, FeatureFRSQRTE,
 402                    FeatureSTFIWX, Feature64Bit, FeatureMFTB]>;
 403 def : ProcessorModel<"pwr5", G5Model,
 404                   [DirectivePwr5, FeatureAltivec, FeatureMFOCRF,
 405                    FeatureFSqrt, FeatureFRE, FeatureFRES,
 406                    FeatureFRSQRTE, FeatureFRSQRTES,
 407                    FeatureSTFIWX, Feature64Bit,
 408                    FeatureMFTB, DeprecatedDST]>;
 409 def : ProcessorModel<"pwr5x", G5Model,
 410                   [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
 411                    FeatureFSqrt, FeatureFRE, FeatureFRES,
 412                    FeatureFRSQRTE, FeatureFRSQRTES,
 413                    FeatureSTFIWX, FeatureFPRND, Feature64Bit,
 414                    FeatureMFTB, DeprecatedDST]>;
 415 def : ProcessorModel<"pwr6", G5Model,
 416                   [DirectivePwr6, FeatureAltivec,
 417                    FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
 418                    FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
 419                    FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
 420                    FeatureFPRND, Feature64Bit /*, Feature64BitRegs */,
 421                    FeatureMFTB, DeprecatedDST]>;
 422 def : ProcessorModel<"pwr6x", G5Model,
 423                   [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
 424                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 425                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 426                    FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
 427                    FeatureFPRND, Feature64Bit,
 428                    FeatureMFTB, DeprecatedDST]>;
 429 def : ProcessorModel<"pwr7", P7Model, ProcessorFeatures.Power7FeatureList>;
 430 def : ProcessorModel<"pwr8", P8Model, ProcessorFeatures.Power8FeatureList>;
 431 def : ProcessorModel<"pwr9", P9Model, ProcessorFeatures.Power9FeatureList>;
 432 def : Processor<"ppc", G3Itineraries, [Directive32, FeatureHardFloat,
 433                                        FeatureMFTB]>;
 434 def : Processor<"ppc32", G3Itineraries, [Directive32, FeatureHardFloat,
 435                                          FeatureMFTB]>;
 436 def : ProcessorModel<"ppc64", G5Model,
 437                   [Directive64, FeatureAltivec,
 438                    FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
 439                    FeatureFRSQRTE, FeatureSTFIWX,
 440                    Feature64Bit /*, Feature64BitRegs */,
 441                    FeatureMFTB]>;
 442 def : ProcessorModel<"ppc64le", P8Model, ProcessorFeatures.Power8FeatureList>;
 443
 444 //===----------------------------------------------------------------------===//
 445 // Calling Conventions
 446 //===----------------------------------------------------------------------===//
 447
 448 include "PPCCallingConv.td"
 449
 450 def PPCInstrInfo : InstrInfo {
 451   let isLittleEndianEncoding = 1;
 452
 453   // FIXME: Unset this when no longer needed!
 454   let decodePositionallyEncodedOperands = 1;
 455
 456   let noNamedPositionallyEncodedOperands = 1;
 457 }
 458
 459 def PPCAsmParser : AsmParser {
 460   let ShouldEmitMatchRegisterName = 0;
 461 }
 462
 463 def PPCAsmParserVariant : AsmParserVariant {
 464   int Variant = 0;
 465
 466   // We do not use hard coded registers in asm strings.  However, some
 467   // InstAlias definitions use immediate literals.  Set RegisterPrefix
 468   // so that those are not misinterpreted as registers.
 469   string RegisterPrefix = "%";
 470   string BreakCharacters = ".";
 471 }
 472
 473 def PPC : Target {
 474   // Information about the instructions.
 475   let InstructionSet = PPCInstrInfo;
 476
 477   let AssemblyParsers = [PPCAsmParser];
 478   let AssemblyParserVariants = [PPCAsmParserVariant];
 479   let AllowRegisterRenaming = 1;
 480 }