| //===-- Mips.td - Describe the Mips Target Machine ---------*- tablegen -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // 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 PTR size such as IsPTR64bit |
| list<Predicate> PTRPredicates = []; |
| // Predicates for a symbol's size such as hasSym32. |
| list<Predicate> SYMPredicates = []; |
| // Predicates for the FGR size and layout such as IsFP64bit |
| list<Predicate> FGRPredicates = []; |
| // Predicates for the instruction group membership such as ISA's. |
| list<Predicate> InsnPredicates = []; |
| // Predicate for the ASE that an instruction belongs to. |
| list<Predicate> ASEPredicate = []; |
| // Predicate for marking the instruction as usable in hard-float mode only. |
| list<Predicate> HardFloatPredicate = []; |
| // Predicates for anything else |
| list<Predicate> AdditionalPredicates = []; |
| list<Predicate> Predicates = !listconcat(EncodingPredicates, |
| GPRPredicates, |
| PTRPredicates, |
| SYMPredicates, |
| FGRPredicates, |
| InsnPredicates, |
| HardFloatPredicate, |
| ASEPredicate, |
| 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" |
| include "MipsRegisterBanks.td" |
| |
| // Avoid forward declaration issues. |
| include "MipsScheduleP5600.td" |
| include "MipsScheduleGeneric.td" |
| |
| def MipsInstrInfo : InstrInfo; |
| |
| //===----------------------------------------------------------------------===// |
| // Mips Subtarget features // |
| //===----------------------------------------------------------------------===// |
| |
| def FeatureNoABICalls : SubtargetFeature<"noabicalls", "NoABICalls", "true", |
| "Disable SVR4-style position-independent code">; |
| def FeaturePTR64Bit : SubtargetFeature<"ptr64", "IsPTR64bit", "true", |
| "Pointers are 64-bit wide">; |
| 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 FeatureAbs2008 : SubtargetFeature<"abs2008", "Abs2008", "true", |
| "Disable IEEE 754-2008 abs.fmt mode">; |
| def FeatureSingleFloat : SubtargetFeature<"single-float", "IsSingleFloat", |
| "true", "Only supports single precision float">; |
| def FeatureSoftFloat : SubtargetFeature<"soft-float", "IsSoftFloat", "true", |
| "Does not support floating point instructions">; |
| 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 FeatureMips32r3 : SubtargetFeature<"mips32r3", "MipsArchVersion", |
| "Mips32r3", "Mips32r3 ISA Support", |
| [FeatureMips32r2]>; |
| def FeatureMips32r5 : SubtargetFeature<"mips32r5", "MipsArchVersion", |
| "Mips32r5", "Mips32r5 ISA Support", |
| [FeatureMips32r3]>; |
| def FeatureMips32r6 : SubtargetFeature<"mips32r6", "MipsArchVersion", |
| "Mips32r6", |
| "Mips32r6 ISA Support [experimental]", |
| [FeatureMips32r5, FeatureFP64Bit, |
| FeatureNaN2008, FeatureAbs2008]>; |
| def FeatureMips64 : SubtargetFeature<"mips64", "MipsArchVersion", |
| "Mips64", "Mips64 ISA Support", |
| [FeatureMips5, FeatureMips32]>; |
| def FeatureMips64r2 : SubtargetFeature<"mips64r2", "MipsArchVersion", |
| "Mips64r2", "Mips64r2 ISA Support", |
| [FeatureMips64, FeatureMips32r2]>; |
| def FeatureMips64r3 : SubtargetFeature<"mips64r3", "MipsArchVersion", |
| "Mips64r3", "Mips64r3 ISA Support", |
| [FeatureMips64r2, FeatureMips32r3]>; |
| def FeatureMips64r5 : SubtargetFeature<"mips64r5", "MipsArchVersion", |
| "Mips64r5", "Mips64r5 ISA Support", |
| [FeatureMips64r3, FeatureMips32r5]>; |
| def FeatureMips64r6 : SubtargetFeature<"mips64r6", "MipsArchVersion", |
| "Mips64r6", |
| "Mips64r6 ISA Support [experimental]", |
| [FeatureMips32r6, FeatureMips64r5, |
| FeatureNaN2008, FeatureAbs2008]>; |
| def FeatureSym32 : SubtargetFeature<"sym32", "HasSym32", "true", |
| "Symbols are 32 bit on Mips64">; |
| |
| 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 FeatureDSPR3 |
| : SubtargetFeature<"dspr3", "HasDSPR3", "true", "Mips DSP-R3 ASE", |
| [ FeatureDSP, FeatureDSPR2 ]>; |
| |
| def FeatureMSA : SubtargetFeature<"msa", "HasMSA", "true", "Mips MSA ASE">; |
| |
| def FeatureEVA : SubtargetFeature<"eva", "HasEVA", "true", "Mips EVA ASE">; |
| |
| def FeatureCRC : SubtargetFeature<"crc", "HasCRC", "true", "Mips R6 CRC ASE">; |
| |
| def FeatureVirt : SubtargetFeature<"virt", "HasVirt", "true", |
| "Mips Virtualization ASE">; |
| |
| def FeatureGINV : SubtargetFeature<"ginv", "HasGINV", "true", |
| "Mips Global Invalidate ASE">; |
| |
| def FeatureMicroMips : SubtargetFeature<"micromips", "InMicroMipsMode", "true", |
| "microMips mode">; |
| |
| def FeatureCnMips : SubtargetFeature<"cnmips", "HasCnMips", |
| "true", "Octeon cnMIPS Support", |
| [FeatureMips64r2]>; |
| |
| def FeatureCnMipsP : SubtargetFeature<"cnmipsp", "HasCnMipsP", |
| "true", "Octeon+ cnMIPS Support", |
| [FeatureCnMips]>; |
| |
| def FeatureUseTCCInDIV : SubtargetFeature< |
| "use-tcc-in-div", |
| "UseTCCInDIV", "false", |
| "Force the assembler to use trapping">; |
| |
| def FeatureMadd4 |
| : SubtargetFeature<"nomadd4", "DisableMadd4", "true", |
| "Disable 4-operand madd.fmt and related instructions">; |
| |
| def FeatureMT : SubtargetFeature<"mt", "HasMT", "true", "Mips MT ASE">; |
| |
| def FeatureLongCalls : SubtargetFeature<"long-calls", "UseLongCalls", "true", |
| "Disable use of the jal instruction">; |
| |
| def FeatureXGOT |
| : SubtargetFeature<"xgot", "UseXGOT", "true", "Assume 32-bit GOT">; |
| |
| def FeatureUseIndirectJumpsHazard : SubtargetFeature<"use-indirect-jump-hazard", |
| "UseIndirectJumpsHazard", |
| "true", "Use indirect jump" |
| " guards to prevent certain speculation based attacks">; |
| //===----------------------------------------------------------------------===// |
| // Mips processors supported. |
| //===----------------------------------------------------------------------===// |
| |
| def ImplP5600 : SubtargetFeature<"p5600", "ProcImpl", |
| "MipsSubtarget::CPU::P5600", |
| "The P5600 Processor", [FeatureMips32r5]>; |
| |
| class Proc<string Name, list<SubtargetFeature> Features> |
| : ProcessorModel<Name, MipsGenericModel, Features>; |
| |
| def : Proc<"generic", [FeatureMips32]>; |
| def : Proc<"mips1", [FeatureMips1]>; |
| def : Proc<"mips2", [FeatureMips2]>; |
| def : Proc<"mips32", [FeatureMips32]>; |
| def : Proc<"mips32r2", [FeatureMips32r2]>; |
| def : Proc<"mips32r3", [FeatureMips32r3]>; |
| def : Proc<"mips32r5", [FeatureMips32r5]>; |
| def : Proc<"mips32r6", [FeatureMips32r6]>; |
| |
| def : Proc<"mips3", [FeatureMips3]>; |
| def : Proc<"mips4", [FeatureMips4]>; |
| def : Proc<"mips5", [FeatureMips5]>; |
| def : Proc<"mips64", [FeatureMips64]>; |
| def : Proc<"mips64r2", [FeatureMips64r2]>; |
| def : Proc<"mips64r3", [FeatureMips64r3]>; |
| def : Proc<"mips64r5", [FeatureMips64r5]>; |
| def : Proc<"mips64r6", [FeatureMips64r6]>; |
| def : Proc<"octeon", [FeatureMips64r2, FeatureCnMips]>; |
| def : Proc<"octeon+", [FeatureMips64r2, FeatureCnMips, FeatureCnMipsP]>; |
| def : ProcessorModel<"p5600", MipsP5600Model, [ImplP5600]>; |
| |
| def MipsAsmParser : AsmParser { |
| let ShouldEmitMatchRegisterName = 0; |
| } |
| |
| def MipsAsmParserVariant : AsmParserVariant { |
| int Variant = 0; |
| |
| // Recognize hard coded registers. |
| string RegisterPrefix = "$"; |
| } |
| |
| def Mips : Target { |
| let InstructionSet = MipsInstrInfo; |
| let AssemblyParsers = [MipsAsmParser]; |
| let AssemblyParserVariants = [MipsAsmParserVariant]; |
| let AllowRegisterRenaming = 1; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Pfm Counters |
| //===----------------------------------------------------------------------===// |
| |
| include "MipsPfmCounters.td" |
