| //===-- Mips.td - Describe the Mips 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 Mips target. |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // Target-independent interfaces |
| //===----------------------------------------------------------------------===// |
| |
| include "llvm/Target/Target.td" |
| |
| // The overall idea of the PredicateControl class is to chop the Predicates list |
| // into subsets that are usually overridden independently. This allows |
| // subclasses to partially override the predicates of their superclasses without |
| // having to re-add all the existing predicates. |
| class PredicateControl { |
| // Predicates for the encoding scheme in use such as HasStdEnc |
| list<Predicate> EncodingPredicates = []; |
| // Predicates for the GPR size such as IsGP64bit |
| list<Predicate> GPRPredicates = []; |
| // Predicates for the FGR size and layout such as IsFP64bit |
| list<Predicate> FGRPredicates = []; |
| // Predicates for the instruction group membership such as ISA's and ASE's |
| list<Predicate> InsnPredicates = []; |
| // Predicates for anything else |
| list<Predicate> AdditionalPredicates = []; |
| list<Predicate> Predicates = !listconcat(EncodingPredicates, |
| GPRPredicates, |
| FGRPredicates, |
| InsnPredicates, |
| AdditionalPredicates); |
| } |
| |
| // Like Requires<> but for the AdditionalPredicates list |
| class AdditionalRequires<list<Predicate> preds> { |
| list<Predicate> AdditionalPredicates = preds; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Register File, Calling Conv, Instruction Descriptions |
| //===----------------------------------------------------------------------===// |
| |
| include "MipsRegisterInfo.td" |
| include "MipsSchedule.td" |
| include "MipsInstrInfo.td" |
| include "MipsCallingConv.td" |
| |
| def MipsInstrInfo : InstrInfo; |
| |
| //===----------------------------------------------------------------------===// |
| // Mips Subtarget features // |
| //===----------------------------------------------------------------------===// |
| |
| def FeatureNoABICalls : SubtargetFeature<"noabicalls", "NoABICalls", "true", |
| "Disable SVR4-style position-independent code">; |
| def FeatureGP64Bit : SubtargetFeature<"gp64", "IsGP64bit", "true", |
| "General Purpose Registers are 64-bit wide">; |
| def FeatureFP64Bit : SubtargetFeature<"fp64", "IsFP64bit", "true", |
| "Support 64-bit FP registers">; |
| def FeatureFPXX : SubtargetFeature<"fpxx", "IsFPXX", "true", |
| "Support for FPXX">; |
| def FeatureNaN2008 : SubtargetFeature<"nan2008", "IsNaN2008bit", "true", |
| "IEEE 754-2008 NaN encoding">; |
| def FeatureSingleFloat : SubtargetFeature<"single-float", "IsSingleFloat", |
| "true", "Only supports single precision float">; |
| def FeatureO32 : SubtargetFeature<"o32", "ABI", "MipsABIInfo::O32()", |
| "Enable o32 ABI">; |
| def FeatureN32 : SubtargetFeature<"n32", "ABI", "MipsABIInfo::N32()", |
| "Enable n32 ABI">; |
| def FeatureN64 : SubtargetFeature<"n64", "ABI", "MipsABIInfo::N64()", |
| "Enable n64 ABI">; |
| def FeatureEABI : SubtargetFeature<"eabi", "ABI", "MipsABIInfo::EABI()", |
| "Enable eabi ABI">; |
| def FeatureNoOddSPReg : SubtargetFeature<"nooddspreg", "UseOddSPReg", "false", |
| "Disable odd numbered single-precision " |
| "registers">; |
| def FeatureVFPU : SubtargetFeature<"vfpu", "HasVFPU", |
| "true", "Enable vector FPU instructions">; |
| def FeatureMips1 : SubtargetFeature<"mips1", "MipsArchVersion", "Mips1", |
| "Mips I ISA Support [highly experimental]">; |
| def FeatureMips2 : SubtargetFeature<"mips2", "MipsArchVersion", "Mips2", |
| "Mips II ISA Support [highly experimental]", |
| [FeatureMips1]>; |
| def FeatureMips3_32 : SubtargetFeature<"mips3_32", "HasMips3_32", "true", |
| "Subset of MIPS-III that is also in MIPS32 " |
| "[highly experimental]">; |
| def FeatureMips3_32r2 : SubtargetFeature<"mips3_32r2", "HasMips3_32r2", "true", |
| "Subset of MIPS-III that is also in MIPS32r2 " |
| "[highly experimental]">; |
| def FeatureMips3 : SubtargetFeature<"mips3", "MipsArchVersion", "Mips3", |
| "MIPS III ISA Support [highly experimental]", |
| [FeatureMips2, FeatureMips3_32, |
| FeatureMips3_32r2, FeatureGP64Bit, |
| FeatureFP64Bit]>; |
| def FeatureMips4_32 : SubtargetFeature<"mips4_32", "HasMips4_32", "true", |
| "Subset of MIPS-IV that is also in MIPS32 " |
| "[highly experimental]">; |
| def FeatureMips4_32r2 : SubtargetFeature<"mips4_32r2", "HasMips4_32r2", "true", |
| "Subset of MIPS-IV that is also in MIPS32r2 " |
| "[highly experimental]">; |
| def FeatureMips4 : SubtargetFeature<"mips4", "MipsArchVersion", |
| "Mips4", "MIPS IV ISA Support", |
| [FeatureMips3, FeatureMips4_32, |
| FeatureMips4_32r2]>; |
| def FeatureMips5_32r2 : SubtargetFeature<"mips5_32r2", "HasMips5_32r2", "true", |
| "Subset of MIPS-V that is also in MIPS32r2 " |
| "[highly experimental]">; |
| def FeatureMips5 : SubtargetFeature<"mips5", "MipsArchVersion", "Mips5", |
| "MIPS V ISA Support [highly experimental]", |
| [FeatureMips4, FeatureMips5_32r2]>; |
| def FeatureMips32 : SubtargetFeature<"mips32", "MipsArchVersion", "Mips32", |
| "Mips32 ISA Support", |
| [FeatureMips2, FeatureMips3_32, |
| FeatureMips4_32]>; |
| def FeatureMips32r2 : SubtargetFeature<"mips32r2", "MipsArchVersion", |
| "Mips32r2", "Mips32r2 ISA Support", |
| [FeatureMips3_32r2, FeatureMips4_32r2, |
| FeatureMips5_32r2, FeatureMips32]>; |
| def FeatureMips32r6 : SubtargetFeature<"mips32r6", "MipsArchVersion", |
| "Mips32r6", |
| "Mips32r6 ISA Support [experimental]", |
| [FeatureMips32r2, FeatureFP64Bit, |
| FeatureNaN2008]>; |
| def FeatureMips64 : SubtargetFeature<"mips64", "MipsArchVersion", |
| "Mips64", "Mips64 ISA Support", |
| [FeatureMips5, FeatureMips32]>; |
| def FeatureMips64r2 : SubtargetFeature<"mips64r2", "MipsArchVersion", |
| "Mips64r2", "Mips64r2 ISA Support", |
| [FeatureMips64, FeatureMips32r2]>; |
| def FeatureMips64r6 : SubtargetFeature<"mips64r6", "MipsArchVersion", |
| "Mips64r6", |
| "Mips64r6 ISA Support [experimental]", |
| [FeatureMips32r6, FeatureMips64r2, |
| FeatureNaN2008]>; |
| |
| def FeatureMips16 : SubtargetFeature<"mips16", "InMips16Mode", "true", |
| "Mips16 mode">; |
| |
| def FeatureDSP : SubtargetFeature<"dsp", "HasDSP", "true", "Mips DSP ASE">; |
| def FeatureDSPR2 : SubtargetFeature<"dspr2", "HasDSPR2", "true", |
| "Mips DSP-R2 ASE", [FeatureDSP]>; |
| |
| def FeatureMSA : SubtargetFeature<"msa", "HasMSA", "true", "Mips MSA ASE">; |
| |
| def FeatureMicroMips : SubtargetFeature<"micromips", "InMicroMipsMode", "true", |
| "microMips mode">; |
| |
| def FeatureCnMips : SubtargetFeature<"cnmips", "HasCnMips", |
| "true", "Octeon cnMIPS Support", |
| [FeatureMips64r2]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Mips processors supported. |
| //===----------------------------------------------------------------------===// |
| |
| class Proc<string Name, list<SubtargetFeature> Features> |
| : Processor<Name, MipsGenericItineraries, Features>; |
| |
| def : Proc<"mips1", [FeatureMips1, FeatureO32]>; |
| def : Proc<"mips2", [FeatureMips2, FeatureO32]>; |
| def : Proc<"mips32", [FeatureMips32, FeatureO32]>; |
| def : Proc<"mips32r2", [FeatureMips32r2, FeatureO32]>; |
| def : Proc<"mips32r6", [FeatureMips32r6, FeatureO32]>; |
| |
| def : Proc<"mips3", [FeatureMips3, FeatureN64]>; |
| def : Proc<"mips4", [FeatureMips4, FeatureN64]>; |
| def : Proc<"mips5", [FeatureMips5, FeatureN64]>; |
| def : Proc<"mips64", [FeatureMips64, FeatureN64]>; |
| def : Proc<"mips64r2", [FeatureMips64r2, FeatureN64]>; |
| def : Proc<"mips64r6", [FeatureMips64r6, FeatureN64]>; |
| def : Proc<"mips16", [FeatureMips16, FeatureO32]>; |
| def : Proc<"octeon", [FeatureMips64r2, FeatureN64, FeatureCnMips]>; |
| |
| def MipsAsmParser : AsmParser { |
| let ShouldEmitMatchRegisterName = 0; |
| let MnemonicContainsDot = 1; |
| } |
| |
| def MipsAsmParserVariant : AsmParserVariant { |
| int Variant = 0; |
| |
| // Recognize hard coded registers. |
| string RegisterPrefix = "$"; |
| } |
| |
| def Mips : Target { |
| let InstructionSet = MipsInstrInfo; |
| let AssemblyParsers = [MipsAsmParser]; |
| let AssemblyParserVariants = [MipsAsmParserVariant]; |
| } |
