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//===-- 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"
//===----------------------------------------------------------------------===//
// 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 FeatureGP64Bit : SubtargetFeature<"gp64", "IsGP64bit", "true",
"General Purpose Registers are 64-bit wide.">;
def FeatureFP64Bit : SubtargetFeature<"fp64", "IsFP64bit", "true",
"Support 64-bit FP registers.">;
def FeatureSingleFloat : SubtargetFeature<"single-float", "IsSingleFloat",
"true", "Only supports single precision float">;
def FeatureO32 : SubtargetFeature<"o32", "MipsABI", "O32",
"Enable o32 ABI">;
def FeatureN32 : SubtargetFeature<"n32", "MipsABI", "N32",
"Enable n32 ABI">;
def FeatureN64 : SubtargetFeature<"n64", "MipsABI", "N64",
"Enable n64 ABI">;
def FeatureEABI : SubtargetFeature<"eabi", "MipsABI", "EABI",
"Enable eabi ABI">;
def FeatureVFPU : SubtargetFeature<"vfpu", "HasVFPU",
"true", "Enable vector FPU instructions.">;
def FeatureSEInReg : SubtargetFeature<"seinreg", "HasSEInReg", "true",
"Enable 'signext in register' instructions.">;
def FeatureCondMov : SubtargetFeature<"condmov", "HasCondMov", "true",
"Enable 'conditional move' instructions.">;
def FeatureSwap : SubtargetFeature<"swap", "HasSwap", "true",
"Enable 'byte/half swap' instructions.">;
def FeatureBitCount : SubtargetFeature<"bitcount", "HasBitCount", "true",
"Enable 'count leading bits' instructions.">;
def FeatureFPIdx : SubtargetFeature<"FPIdx", "HasFPIdx", "true",
"Enable 'FP indexed load/store' instructions.">;
def FeatureMips32 : SubtargetFeature<"mips32", "MipsArchVersion", "Mips32",
"Mips32 ISA Support",
[FeatureCondMov, FeatureBitCount]>;
def FeatureMips32r2 : SubtargetFeature<"mips32r2", "MipsArchVersion",
"Mips32r2", "Mips32r2 ISA Support",
[FeatureMips32, FeatureSEInReg, FeatureSwap,
FeatureFPIdx]>;
def FeatureMips64 : SubtargetFeature<"mips64", "MipsArchVersion",
"Mips64", "Mips64 ISA Support",
[FeatureGP64Bit, FeatureFP64Bit,
FeatureMips32, FeatureFPIdx]>;
def FeatureMips64r2 : SubtargetFeature<"mips64r2", "MipsArchVersion",
"Mips64r2", "Mips64r2 ISA Support",
[FeatureMips64, FeatureMips32r2]>;
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 FeatureMicroMips : SubtargetFeature<"micromips", "InMicroMipsMode", "true",
"microMips mode">;
//===----------------------------------------------------------------------===//
// Mips processors supported.
//===----------------------------------------------------------------------===//
class Proc<string Name, list<SubtargetFeature> Features>
: Processor<Name, MipsGenericItineraries, Features>;
def : Proc<"mips32", [FeatureMips32]>;
def : Proc<"mips32r2", [FeatureMips32r2]>;
def : Proc<"mips64", [FeatureMips64]>;
def : Proc<"mips64r2", [FeatureMips64r2]>;
def : Proc<"mips16", [FeatureMips16]>;
def MipsAsmWriter : AsmWriter {
string AsmWriterClassName = "InstPrinter";
bit isMCAsmWriter = 1;
}
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 AssemblyWriters = [MipsAsmWriter];
let AssemblyParserVariants = [MipsAsmParserVariant];
}
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