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: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5X", "">;
  46 def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">;
  47 def DirectivePwr6x: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">;
  48 def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">;
  49
  50 def Feature64Bit     : SubtargetFeature<"64bit","Has64BitSupport", "true",
  51                                         "Enable 64-bit instructions">;
  52 def Feature64BitRegs : SubtargetFeature<"64bitregs","Use64BitRegs", "true",
  53                               "Enable 64-bit registers usage for ppc32 [beta]">;
  54 def FeatureCRBits    : SubtargetFeature<"crbits", "UseCRBits", "true",
  55                               "Use condition-register bits individually">;
  56 def FeatureAltivec   : SubtargetFeature<"altivec","HasAltivec", "true",
  57                                         "Enable Altivec instructions">;
  58 def FeatureMFOCRF    : SubtargetFeature<"mfocrf","HasMFOCRF", "true",
  59                                         "Enable the MFOCRF instruction">;
  60 def FeatureFSqrt     : SubtargetFeature<"fsqrt","HasFSQRT", "true",
  61                                         "Enable the fsqrt instruction">;
  62 def FeatureFCPSGN    : SubtargetFeature<"fcpsgn", "HasFCPSGN", "true",
  63                                         "Enable the fcpsgn instruction">;
  64 def FeatureFRE       : SubtargetFeature<"fre", "HasFRE", "true",
  65                                         "Enable the fre instruction">;
  66 def FeatureFRES      : SubtargetFeature<"fres", "HasFRES", "true",
  67                                         "Enable the fres instruction">;
  68 def FeatureFRSQRTE   : SubtargetFeature<"frsqrte", "HasFRSQRTE", "true",
  69                                         "Enable the frsqrte instruction">;
  70 def FeatureFRSQRTES  : SubtargetFeature<"frsqrtes", "HasFRSQRTES", "true",
  71                                         "Enable the frsqrtes instruction">;
  72 def FeatureRecipPrec : SubtargetFeature<"recipprec", "HasRecipPrec", "true",
  73                               "Assume higher precision reciprocal estimates">;
  74 def FeatureSTFIWX    : SubtargetFeature<"stfiwx","HasSTFIWX", "true",
  75                                         "Enable the stfiwx instruction">;
  76 def FeatureLFIWAX    : SubtargetFeature<"lfiwax","HasLFIWAX", "true",
  77                                         "Enable the lfiwax instruction">;
  78 def FeatureFPRND     : SubtargetFeature<"fprnd", "HasFPRND", "true",
  79                                         "Enable the fri[mnpz] instructions">;
  80 def FeatureFPCVT     : SubtargetFeature<"fpcvt", "HasFPCVT", "true",
  81   "Enable fc[ft]* (unsigned and single-precision) and lfiwzx instructions">;
  82 def FeatureISEL      : SubtargetFeature<"isel","HasISEL", "true",
  83                                         "Enable the isel instruction">;
  84 def FeaturePOPCNTD   : SubtargetFeature<"popcntd","HasPOPCNTD", "true",
  85                                         "Enable the popcnt[dw] instructions">;
  86 def FeatureLDBRX     : SubtargetFeature<"ldbrx","HasLDBRX", "true",
  87                                         "Enable the ldbrx instruction">;
  88 def FeatureBookE     : SubtargetFeature<"booke", "IsBookE", "true",
  89                                         "Enable Book E instructions">;
  90 def FeatureQPX       : SubtargetFeature<"qpx","HasQPX", "true",
  91                                         "Enable QPX instructions">;
  92 def FeatureVSX       : SubtargetFeature<"vsx","HasVSX", "true",
  93                                         "Enable VSX instructions",
  94                                         [FeatureAltivec]>;
  95
  96 def DeprecatedMFTB   : SubtargetFeature<"", "DeprecatedMFTB", "true",
  97                                         "Treat mftb as deprecated">;
  98 def DeprecatedDST    : SubtargetFeature<"", "DeprecatedDST", "true",
  99   "Treat vector data stream cache control instructions as deprecated">;
 100
 101 // Note: Future features to add when support is extended to more
 102 // recent ISA levels:
 103 //
 104 // CMPB         p6, p6x, p7        cmpb
 105 // DFP          p6, p6x, p7        decimal floating-point instructions
 106 // POPCNTB      p5 through p7      popcntb and related instructions
 107 // VSX          p7                 vector-scalar instruction set
 108
 109 //===----------------------------------------------------------------------===//
 110 // Classes used for relation maps.
 111 //===----------------------------------------------------------------------===//
 112 // RecFormRel - Filter class used to relate non-record-form instructions with
 113 // their record-form variants.
 114 class RecFormRel;
 115
 116 // AltVSXFMARel - Filter class used to relate the primary addend-killing VSX
 117 // FMA instruction forms with their corresponding factor-killing forms.
 118 class AltVSXFMARel {
 119   bit IsVSXFMAAlt = 0;
 120 }
 121
 122 //===----------------------------------------------------------------------===//
 123 // Relation Map Definitions.
 124 //===----------------------------------------------------------------------===//
 125
 126 def getRecordFormOpcode : InstrMapping {
 127   let FilterClass = "RecFormRel";
 128   // Instructions with the same BaseName and Interpretation64Bit values
 129   // form a row.
 130   let RowFields = ["BaseName", "Interpretation64Bit"];
 131   // Instructions with the same RC value form a column.
 132   let ColFields = ["RC"];
 133   // The key column are the non-record-form instructions.
 134   let KeyCol = ["0"];
 135   // Value columns RC=1
 136   let ValueCols = [["1"]];
 137 }
 138
 139 def getNonRecordFormOpcode : InstrMapping {
 140   let FilterClass = "RecFormRel";
 141   // Instructions with the same BaseName and Interpretation64Bit values
 142   // form a row.
 143   let RowFields = ["BaseName", "Interpretation64Bit"];
 144   // Instructions with the same RC value form a column.
 145   let ColFields = ["RC"];
 146   // The key column are the record-form instructions.
 147   let KeyCol = ["1"];
 148   // Value columns are RC=0
 149   let ValueCols = [["0"]];
 150 }
 151
 152 def getAltVSXFMAOpcode : InstrMapping {
 153   let FilterClass = "AltVSXFMARel";
 154   // Instructions with the same BaseName and Interpretation64Bit values
 155   // form a row.
 156   let RowFields = ["BaseName"];
 157   // Instructions with the same RC value form a column.
 158   let ColFields = ["IsVSXFMAAlt"];
 159   // The key column are the (default) addend-killing instructions.
 160   let KeyCol = ["0"];
 161   // Value columns IsVSXFMAAlt=1
 162   let ValueCols = [["1"]];
 163 }
 164
 165 //===----------------------------------------------------------------------===//
 166 // Register File Description
 167 //===----------------------------------------------------------------------===//
 168
 169 include "PPCRegisterInfo.td"
 170 include "PPCSchedule.td"
 171 include "PPCInstrInfo.td"
 172
 173 //===----------------------------------------------------------------------===//
 174 // PowerPC processors supported.
 175 //
 176
 177 def : Processor<"generic", G3Itineraries, [Directive32]>;
 178 def : ProcessorModel<"440", PPC440Model, [Directive440, FeatureISEL,
 179                                           FeatureFRES, FeatureFRSQRTE,
 180                                           FeatureBookE, DeprecatedMFTB]>;
 181 def : ProcessorModel<"450", PPC440Model, [Directive440, FeatureISEL,
 182                                           FeatureFRES, FeatureFRSQRTE,
 183                                           FeatureBookE, DeprecatedMFTB]>;
 184 def : Processor<"601", G3Itineraries, [Directive601]>;
 185 def : Processor<"602", G3Itineraries, [Directive602]>;
 186 def : Processor<"603", G3Itineraries, [Directive603,
 187                                        FeatureFRES, FeatureFRSQRTE]>;
 188 def : Processor<"603e", G3Itineraries, [Directive603,
 189                                         FeatureFRES, FeatureFRSQRTE]>;
 190 def : Processor<"603ev", G3Itineraries, [Directive603,
 191                                          FeatureFRES, FeatureFRSQRTE]>;
 192 def : Processor<"604", G3Itineraries, [Directive604,
 193                                        FeatureFRES, FeatureFRSQRTE]>;
 194 def : Processor<"604e", G3Itineraries, [Directive604,
 195                                         FeatureFRES, FeatureFRSQRTE]>;
 196 def : Processor<"620", G3Itineraries, [Directive620,
 197                                        FeatureFRES, FeatureFRSQRTE]>;
 198 def : Processor<"750", G4Itineraries, [Directive750,
 199                                        FeatureFRES, FeatureFRSQRTE]>;
 200 def : Processor<"g3", G3Itineraries, [Directive750,
 201                                       FeatureFRES, FeatureFRSQRTE]>;
 202 def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec,
 203                                         FeatureFRES, FeatureFRSQRTE]>;
 204 def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec,
 205                                       FeatureFRES, FeatureFRSQRTE]>;
 206 def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec,
 207                                             FeatureFRES, FeatureFRSQRTE]>;
 208 def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec,
 209                                            FeatureFRES, FeatureFRSQRTE]>;
 210 def : ProcessorModel<"970", G5Model,
 211                   [Directive970, FeatureAltivec,
 212                    FeatureMFOCRF, FeatureFSqrt,
 213                    FeatureFRES, FeatureFRSQRTE, FeatureSTFIWX,
 214                    Feature64Bit /*, Feature64BitRegs */]>;
 215 def : ProcessorModel<"g5", G5Model,
 216                   [Directive970, FeatureAltivec,
 217                    FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
 218                    FeatureFRES, FeatureFRSQRTE,
 219                    Feature64Bit /*, Feature64BitRegs */,
 220                    DeprecatedMFTB, DeprecatedDST]>;
 221 def : ProcessorModel<"e500mc", PPCE500mcModel,
 222                   [DirectiveE500mc, FeatureMFOCRF,
 223                    FeatureSTFIWX, FeatureBookE, FeatureISEL,
 224                    DeprecatedMFTB]>;
 225 def : ProcessorModel<"e5500", PPCE5500Model,
 226                   [DirectiveE5500, FeatureMFOCRF, Feature64Bit,
 227                    FeatureSTFIWX, FeatureBookE, FeatureISEL,
 228                    DeprecatedMFTB]>;
 229 def : ProcessorModel<"a2", PPCA2Model,
 230                   [DirectiveA2, FeatureBookE, FeatureMFOCRF,
 231                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 232                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 233                    FeatureSTFIWX, FeatureLFIWAX,
 234                    FeatureFPRND, FeatureFPCVT, FeatureISEL,
 235                    FeaturePOPCNTD, FeatureLDBRX, Feature64Bit
 236                /*, Feature64BitRegs */, DeprecatedMFTB]>;
 237 def : ProcessorModel<"a2q", PPCA2Model,
 238                   [DirectiveA2, FeatureBookE, FeatureMFOCRF,
 239                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 240                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 241                    FeatureSTFIWX, FeatureLFIWAX,
 242                    FeatureFPRND, FeatureFPCVT, FeatureISEL,
 243                    FeaturePOPCNTD, FeatureLDBRX, Feature64Bit
 244                /*, Feature64BitRegs */, FeatureQPX, DeprecatedMFTB]>;
 245 def : ProcessorModel<"pwr3", G5Model,
 246                   [DirectivePwr3, FeatureAltivec,
 247                    FeatureFRES, FeatureFRSQRTE, FeatureMFOCRF,
 248                    FeatureSTFIWX, Feature64Bit]>;
 249 def : ProcessorModel<"pwr4", G5Model,
 250                   [DirectivePwr4, FeatureAltivec, FeatureMFOCRF,
 251                    FeatureFSqrt, FeatureFRES, FeatureFRSQRTE,
 252                    FeatureSTFIWX, Feature64Bit]>;
 253 def : ProcessorModel<"pwr5", G5Model,
 254                   [DirectivePwr5, FeatureAltivec, FeatureMFOCRF,
 255                    FeatureFSqrt, FeatureFRE, FeatureFRES,
 256                    FeatureFRSQRTE, FeatureFRSQRTES,
 257                    FeatureSTFIWX, Feature64Bit,
 258                    DeprecatedMFTB, DeprecatedDST]>;
 259 def : ProcessorModel<"pwr5x", G5Model,
 260                   [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
 261                    FeatureFSqrt, FeatureFRE, FeatureFRES,
 262                    FeatureFRSQRTE, FeatureFRSQRTES,
 263                    FeatureSTFIWX, FeatureFPRND, Feature64Bit,
 264                    DeprecatedMFTB, DeprecatedDST]>;
 265 def : ProcessorModel<"pwr6", G5Model,
 266                   [DirectivePwr6, FeatureAltivec,
 267                    FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
 268                    FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
 269                    FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
 270                    FeatureFPRND, Feature64Bit /*, Feature64BitRegs */,
 271                    DeprecatedMFTB, DeprecatedDST]>;
 272 def : ProcessorModel<"pwr6x", G5Model,
 273                   [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
 274                    FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
 275                    FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
 276                    FeatureSTFIWX, FeatureLFIWAX,
 277                    FeatureFPRND, Feature64Bit,
 278                    DeprecatedMFTB, DeprecatedDST]>;
 279 def : ProcessorModel<"pwr7", P7Model,
 280                   [DirectivePwr7, FeatureAltivec,
 281                    FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
 282                    FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
 283                    FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
 284                    FeatureFPRND, FeatureFPCVT, FeatureISEL,
 285                    FeaturePOPCNTD, FeatureLDBRX,
 286                    Feature64Bit /*, Feature64BitRegs */,
 287                    DeprecatedMFTB, DeprecatedDST]>;
 288 def : Processor<"ppc", G3Itineraries, [Directive32]>;
 289 def : ProcessorModel<"ppc64", G5Model,
 290                   [Directive64, FeatureAltivec,
 291                    FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
 292                    FeatureFRSQRTE, FeatureSTFIWX,
 293                    Feature64Bit /*, Feature64BitRegs */]>;
 294 def : ProcessorModel<"ppc64le", G5Model,
 295                   [Directive64, FeatureAltivec,
 296                    FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
 297                    FeatureFRSQRTE, FeatureSTFIWX,
 298                    Feature64Bit /*, Feature64BitRegs */]>;
 299
 300 //===----------------------------------------------------------------------===//
 301 // Calling Conventions
 302 //===----------------------------------------------------------------------===//
 303
 304 include "PPCCallingConv.td"
 305
 306 def PPCInstrInfo : InstrInfo {
 307   let isLittleEndianEncoding = 1;
 308
 309   // FIXME: Unset this when no longer needed!
 310   let decodePositionallyEncodedOperands = 1;
 311
 312   let noNamedPositionallyEncodedOperands = 1;
 313 }
 314
 315 def PPCAsmParser : AsmParser {
 316   let ShouldEmitMatchRegisterName = 0;
 317 }
 318
 319 def PPCAsmParserVariant : AsmParserVariant {
 320   int Variant = 0;
 321
 322   // We do not use hard coded registers in asm strings.  However, some
 323   // InstAlias definitions use immediate literals.  Set RegisterPrefix
 324   // so that those are not misinterpreted as registers.
 325   string RegisterPrefix = "%";
 326 }
 327
 328 def PPC : Target {
 329   // Information about the instructions.
 330   let InstructionSet = PPCInstrInfo;
 331
 332   let AssemblyParsers = [PPCAsmParser];
 333   let AssemblyParserVariants = [PPCAsmParserVariant];
 334 }