//===-- 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 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", "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 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];
}