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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 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 FeatureMulDivAdd : SubtargetFeature<"muldivadd", "HasMulDivAdd", "true",
"Enable 'multiply add/sub' instructions.">;
def FeatureMinMax : SubtargetFeature<"minmax", "HasMinMax", "true",
"Enable 'min/max' instructions.">;
def FeatureSwap : SubtargetFeature<"swap", "HasSwap", "true",
"Enable 'byte/half swap' instructions.">;
def FeatureBitCount : SubtargetFeature<"bitcount", "HasBitCount", "true",
"Enable 'count leading bits' instructions.">;
def FeatureMips1 : SubtargetFeature<"mips1", "MipsArchVersion", "Mips1",
"Mips1 ISA Support">;
def FeatureMips2 : SubtargetFeature<"mips2", "MipsArchVersion", "Mips2",
"Mips2 ISA Support">;
def FeatureMips32 : SubtargetFeature<"mips32", "MipsArchVersion", "Mips32",
"Mips32 ISA Support",
[FeatureCondMov, FeatureBitCount]>;
def FeatureMips32r2 : SubtargetFeature<"mips32r2", "MipsArchVersion",
"Mips32r2", "Mips32r2 ISA Support",
[FeatureMips32, FeatureSEInReg]>;
//===----------------------------------------------------------------------===//
// Mips processors supported.
//===----------------------------------------------------------------------===//
class Proc<string Name, list<SubtargetFeature> Features>
: Processor<Name, MipsGenericItineraries, Features>;
def : Proc<"mips1", [FeatureMips1]>;
def : Proc<"r2000", [FeatureMips1]>;
def : Proc<"r3000", [FeatureMips1]>;
def : Proc<"mips2", [FeatureMips2]>;
def : Proc<"r6000", [FeatureMips2]>;
def : Proc<"4ke", [FeatureMips32r2]>;
// Allegrex is a 32bit subset of r4000, both for interger and fp registers,
// but much more similar to Mips2 than Mips3. It also contains some of
// Mips32/Mips32r2 instructions and a custom vector fpu processor.
def : Proc<"allegrex", [FeatureMips2, FeatureSingleFloat, FeatureEABI,
FeatureVFPU, FeatureSEInReg, FeatureCondMov, FeatureMulDivAdd,
FeatureMinMax, FeatureSwap, FeatureBitCount]>;
def Mips : Target {
let InstructionSet = MipsInstrInfo;
}
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