259 lines
13 KiB
TableGen
259 lines
13 KiB
TableGen
//===-- 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 PTR size such as IsPTR64bit
|
|
list<Predicate> PTRPredicates = [];
|
|
// 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,
|
|
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 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]>;
|
|
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]>;
|
|
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 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 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<"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 : 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;
|
|
}
|