//===-- PPC.td - Describe the PowerPC Target Machine -------*- tablegen -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This is the top level entry point for the PowerPC target. // //===----------------------------------------------------------------------===// // Get the target-independent interfaces which we are implementing. // include "llvm/Target/Target.td" //===----------------------------------------------------------------------===// // PowerPC Subtarget features. // //===----------------------------------------------------------------------===// // CPU Directives // //===----------------------------------------------------------------------===// def Directive440 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_440", "">; def Directive601 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_601", "">; def Directive602 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_602", "">; def Directive603 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">; def Directive604 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">; def Directive620 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">; def Directive7400: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_7400", "">; def Directive750 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_750", "">; def Directive970 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_970", "">; def Directive32 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_32", "">; def Directive64 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_64", "">; def DirectiveA2 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_A2", "">; def DirectiveE500mc : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_E500mc", "">; def DirectiveE5500 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_E5500", "">; def DirectivePwr3: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR3", "">; def DirectivePwr4: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR4", "">; def DirectivePwr5: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5", "">; def DirectivePwr5x: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5X", "">; def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">; def DirectivePwr6x: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">; def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">; def DirectivePwr8: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR8", "">; def Feature64Bit : SubtargetFeature<"64bit","Has64BitSupport", "true", "Enable 64-bit instructions">; def Feature64BitRegs : SubtargetFeature<"64bitregs","Use64BitRegs", "true", "Enable 64-bit registers usage for ppc32 [beta]">; def FeatureCRBits : SubtargetFeature<"crbits", "UseCRBits", "true", "Use condition-register bits individually">; def FeatureAltivec : SubtargetFeature<"altivec","HasAltivec", "true", "Enable Altivec instructions">; def FeatureSPE : SubtargetFeature<"spe","HasSPE", "true", "Enable SPE instructions">; def FeatureMFOCRF : SubtargetFeature<"mfocrf","HasMFOCRF", "true", "Enable the MFOCRF instruction">; def FeatureFSqrt : SubtargetFeature<"fsqrt","HasFSQRT", "true", "Enable the fsqrt instruction">; def FeatureFCPSGN : SubtargetFeature<"fcpsgn", "HasFCPSGN", "true", "Enable the fcpsgn instruction">; def FeatureFRE : SubtargetFeature<"fre", "HasFRE", "true", "Enable the fre instruction">; def FeatureFRES : SubtargetFeature<"fres", "HasFRES", "true", "Enable the fres instruction">; def FeatureFRSQRTE : SubtargetFeature<"frsqrte", "HasFRSQRTE", "true", "Enable the frsqrte instruction">; def FeatureFRSQRTES : SubtargetFeature<"frsqrtes", "HasFRSQRTES", "true", "Enable the frsqrtes instruction">; def FeatureRecipPrec : SubtargetFeature<"recipprec", "HasRecipPrec", "true", "Assume higher precision reciprocal estimates">; def FeatureSTFIWX : SubtargetFeature<"stfiwx","HasSTFIWX", "true", "Enable the stfiwx instruction">; def FeatureLFIWAX : SubtargetFeature<"lfiwax","HasLFIWAX", "true", "Enable the lfiwax instruction">; def FeatureFPRND : SubtargetFeature<"fprnd", "HasFPRND", "true", "Enable the fri[mnpz] instructions">; def FeatureFPCVT : SubtargetFeature<"fpcvt", "HasFPCVT", "true", "Enable fc[ft]* (unsigned and single-precision) and lfiwzx instructions">; def FeatureISEL : SubtargetFeature<"isel","HasISEL", "true", "Enable the isel instruction">; def FeaturePOPCNTD : SubtargetFeature<"popcntd","HasPOPCNTD", "true", "Enable the popcnt[dw] instructions">; def FeatureLDBRX : SubtargetFeature<"ldbrx","HasLDBRX", "true", "Enable the ldbrx instruction">; def FeatureCMPB : SubtargetFeature<"cmpb", "HasCMPB", "true", "Enable the cmpb instruction">; def FeatureICBT : SubtargetFeature<"icbt","HasICBT", "true", "Enable icbt instruction">; def FeatureBookE : SubtargetFeature<"booke", "IsBookE", "true", "Enable Book E instructions", [FeatureICBT]>; def FeatureMSYNC : SubtargetFeature<"msync", "HasOnlyMSYNC", "true", "Has only the msync instruction instead of sync", [FeatureBookE]>; def FeatureE500 : SubtargetFeature<"e500", "IsE500", "true", "Enable E500/E500mc instructions">; def FeaturePPC4xx : SubtargetFeature<"ppc4xx", "IsPPC4xx", "true", "Enable PPC 4xx instructions">; def FeaturePPC6xx : SubtargetFeature<"ppc6xx", "IsPPC6xx", "true", "Enable PPC 6xx instructions">; def FeatureQPX : SubtargetFeature<"qpx","HasQPX", "true", "Enable QPX instructions">; def FeatureVSX : SubtargetFeature<"vsx","HasVSX", "true", "Enable VSX instructions", [FeatureAltivec]>; def FeatureP8Altivec : SubtargetFeature<"power8-altivec", "HasP8Altivec", "true", "Enable POWER8 Altivec instructions", [FeatureAltivec]>; def FeatureP8Vector : SubtargetFeature<"power8-vector", "HasP8Vector", "true", "Enable POWER8 vector instructions", [FeatureVSX, FeatureP8Altivec]>; def FeatureInvariantFunctionDescriptors : SubtargetFeature<"invariant-function-descriptors", "HasInvariantFunctionDescriptors", "true", "Assume function descriptors are invariant">; def DeprecatedMFTB : SubtargetFeature<"", "DeprecatedMFTB", "true", "Treat mftb as deprecated">; def DeprecatedDST : SubtargetFeature<"", "DeprecatedDST", "true", "Treat vector data stream cache control instructions as deprecated">; // Note: Future features to add when support is extended to more // recent ISA levels: // // DFP p6, p6x, p7 decimal floating-point instructions // POPCNTB p5 through p7 popcntb and related instructions //===----------------------------------------------------------------------===// // ABI Selection // //===----------------------------------------------------------------------===// def FeatureELFv1 : SubtargetFeature<"elfv1", "TargetABI", "PPC_ABI_ELFv1", "Use the ELFv1 ABI">; def FeatureELFv2 : SubtargetFeature<"elfv2", "TargetABI", "PPC_ABI_ELFv2", "Use the ELFv2 ABI">; //===----------------------------------------------------------------------===// // Classes used for relation maps. //===----------------------------------------------------------------------===// // RecFormRel - Filter class used to relate non-record-form instructions with // their record-form variants. class RecFormRel; // AltVSXFMARel - Filter class used to relate the primary addend-killing VSX // FMA instruction forms with their corresponding factor-killing forms. class AltVSXFMARel { bit IsVSXFMAAlt = 0; } //===----------------------------------------------------------------------===// // Relation Map Definitions. //===----------------------------------------------------------------------===// def getRecordFormOpcode : InstrMapping { let FilterClass = "RecFormRel"; // Instructions with the same BaseName and Interpretation64Bit values // form a row. let RowFields = ["BaseName", "Interpretation64Bit"]; // Instructions with the same RC value form a column. let ColFields = ["RC"]; // The key column are the non-record-form instructions. let KeyCol = ["0"]; // Value columns RC=1 let ValueCols = [["1"]]; } def getNonRecordFormOpcode : InstrMapping { let FilterClass = "RecFormRel"; // Instructions with the same BaseName and Interpretation64Bit values // form a row. let RowFields = ["BaseName", "Interpretation64Bit"]; // Instructions with the same RC value form a column. let ColFields = ["RC"]; // The key column are the record-form instructions. let KeyCol = ["1"]; // Value columns are RC=0 let ValueCols = [["0"]]; } def getAltVSXFMAOpcode : InstrMapping { let FilterClass = "AltVSXFMARel"; // Instructions with the same BaseName and Interpretation64Bit values // form a row. let RowFields = ["BaseName"]; // Instructions with the same RC value form a column. let ColFields = ["IsVSXFMAAlt"]; // The key column are the (default) addend-killing instructions. let KeyCol = ["0"]; // Value columns IsVSXFMAAlt=1 let ValueCols = [["1"]]; } //===----------------------------------------------------------------------===// // Register File Description //===----------------------------------------------------------------------===// include "PPCRegisterInfo.td" include "PPCSchedule.td" include "PPCInstrInfo.td" //===----------------------------------------------------------------------===// // PowerPC processors supported. // def : Processor<"generic", G3Itineraries, [Directive32]>; def : ProcessorModel<"440", PPC440Model, [Directive440, FeatureISEL, FeatureFRES, FeatureFRSQRTE, FeatureICBT, FeatureBookE, FeatureMSYNC, DeprecatedMFTB]>; def : ProcessorModel<"450", PPC440Model, [Directive440, FeatureISEL, FeatureFRES, FeatureFRSQRTE, FeatureICBT, FeatureBookE, FeatureMSYNC, DeprecatedMFTB]>; def : Processor<"601", G3Itineraries, [Directive601]>; def : Processor<"602", G3Itineraries, [Directive602]>; def : Processor<"603", G3Itineraries, [Directive603, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"603e", G3Itineraries, [Directive603, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"603ev", G3Itineraries, [Directive603, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"604", G3Itineraries, [Directive604, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"604e", G3Itineraries, [Directive604, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"620", G3Itineraries, [Directive620, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"750", G4Itineraries, [Directive750, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"g3", G3Itineraries, [Directive750, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec, FeatureFRES, FeatureFRSQRTE]>; def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec, FeatureFRES, FeatureFRSQRTE]>; /* Since new processors generally contain a superset of features of those that came before them, the idea is to make implementations of new processors less error prone and easier to read. Namely: list Power8FeatureList = ... list FutureProcessorSpecificFeatureList = [ features that Power8 does not support ] list FutureProcessorFeatureList = !listconcat(Power8FeatureList, FutureProcessorSpecificFeatureList) Makes it explicit and obvious what is new in FutureProcesor vs. Power8 as well as providing a single point of definition if the feature set will be used elsewhere. */ def ProcessorFeatures { list Power8FeatureList = [DirectivePwr8, FeatureAltivec, FeatureP8Altivec, FeatureVSX, FeatureP8Vector, FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureFPRND, FeatureFPCVT, FeatureISEL, FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */, FeatureICBT, DeprecatedMFTB, DeprecatedDST]; } def : ProcessorModel<"970", G5Model, [Directive970, FeatureAltivec, FeatureMFOCRF, FeatureFSqrt, FeatureFRES, FeatureFRSQRTE, FeatureSTFIWX, Feature64Bit /*, Feature64BitRegs */]>; def : ProcessorModel<"g5", G5Model, [Directive970, FeatureAltivec, FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX, FeatureFRES, FeatureFRSQRTE, Feature64Bit /*, Feature64BitRegs */, DeprecatedMFTB, DeprecatedDST]>; def : ProcessorModel<"e500mc", PPCE500mcModel, [DirectiveE500mc, FeatureMFOCRF, FeatureSTFIWX, FeatureICBT, FeatureBookE, FeatureISEL, DeprecatedMFTB]>; def : ProcessorModel<"e5500", PPCE5500Model, [DirectiveE5500, FeatureMFOCRF, Feature64Bit, FeatureSTFIWX, FeatureICBT, FeatureBookE, FeatureISEL, DeprecatedMFTB]>; def : ProcessorModel<"a2", PPCA2Model, [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureFPRND, FeatureFPCVT, FeatureISEL, FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */, DeprecatedMFTB]>; def : ProcessorModel<"a2q", PPCA2Model, [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureFPRND, FeatureFPCVT, FeatureISEL, FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */, FeatureQPX, DeprecatedMFTB]>; def : ProcessorModel<"pwr3", G5Model, [DirectivePwr3, FeatureAltivec, FeatureFRES, FeatureFRSQRTE, FeatureMFOCRF, FeatureSTFIWX, Feature64Bit]>; def : ProcessorModel<"pwr4", G5Model, [DirectivePwr4, FeatureAltivec, FeatureMFOCRF, FeatureFSqrt, FeatureFRES, FeatureFRSQRTE, FeatureSTFIWX, Feature64Bit]>; def : ProcessorModel<"pwr5", G5Model, [DirectivePwr5, FeatureAltivec, FeatureMFOCRF, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureSTFIWX, Feature64Bit, DeprecatedMFTB, DeprecatedDST]>; def : ProcessorModel<"pwr5x", G5Model, [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureSTFIWX, FeatureFPRND, Feature64Bit, DeprecatedMFTB, DeprecatedDST]>; def : ProcessorModel<"pwr6", G5Model, [DirectivePwr6, FeatureAltivec, FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB, FeatureFPRND, Feature64Bit /*, Feature64BitRegs */, DeprecatedMFTB, DeprecatedDST]>; def : ProcessorModel<"pwr6x", G5Model, [DirectivePwr5x, FeatureAltivec, FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB, FeatureFPRND, Feature64Bit, DeprecatedMFTB, DeprecatedDST]>; def : ProcessorModel<"pwr7", P7Model, [DirectivePwr7, FeatureAltivec, FeatureVSX, FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureFPRND, FeatureFPCVT, FeatureISEL, FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */, DeprecatedMFTB, DeprecatedDST]>; def : ProcessorModel<"pwr8", P8Model, ProcessorFeatures.Power8FeatureList>; def : Processor<"ppc", G3Itineraries, [Directive32]>; def : ProcessorModel<"ppc64", G5Model, [Directive64, FeatureAltivec, FeatureMFOCRF, FeatureFSqrt, FeatureFRES, FeatureFRSQRTE, FeatureSTFIWX, Feature64Bit /*, Feature64BitRegs */]>; def : ProcessorModel<"ppc64le", P8Model, ProcessorFeatures.Power8FeatureList>; //===----------------------------------------------------------------------===// // Calling Conventions //===----------------------------------------------------------------------===// include "PPCCallingConv.td" def PPCInstrInfo : InstrInfo { let isLittleEndianEncoding = 1; // FIXME: Unset this when no longer needed! let decodePositionallyEncodedOperands = 1; let noNamedPositionallyEncodedOperands = 1; } def PPCAsmParser : AsmParser { let ShouldEmitMatchRegisterName = 0; } def PPCAsmParserVariant : AsmParserVariant { int Variant = 0; // We do not use hard coded registers in asm strings. However, some // InstAlias definitions use immediate literals. Set RegisterPrefix // so that those are not misinterpreted as registers. string RegisterPrefix = "%"; } def PPC : Target { // Information about the instructions. let InstructionSet = PPCInstrInfo; let AssemblyParsers = [PPCAsmParser]; let AssemblyParserVariants = [PPCAsmParserVariant]; }