-//===- Mips.td - Describe the Mips Target Machine ---------------*- C++ -*-===//
+//===- Mips.td - Describe the Mips Target Machine ----------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// Target-independent interfaces
//===----------------------------------------------------------------------===//
-include "../Target.td"
+include "llvm/Target/Target.td"
//===----------------------------------------------------------------------===//
-// Descriptions
+// Register File, Calling Conv, Instruction Descriptions
//===----------------------------------------------------------------------===//
include "MipsRegisterInfo.td"
include "MipsInstrInfo.td"
include "MipsCallingConv.td"
-def MipsInstrInfo : InstrInfo {
- let TSFlagsFields = [];
- let TSFlagsShifts = [];
-}
+def MipsInstrInfo : InstrInfo;
//===----------------------------------------------------------------------===//
-// CPU Directives //
+// Mips Subtarget features //
//===----------------------------------------------------------------------===//
-// Not currently supported, but work as SubtargetFeature placeholder.
-def FeatureMipsIII : SubtargetFeature<"mips3", "IsMipsIII", "true",
- "MipsIII ISA Support">;
+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.
//===----------------------------------------------------------------------===//
-def : Processor<"mips1", MipsGenericItineraries, []>;
-def : Processor<"r2000", MipsGenericItineraries, []>;
-def : Processor<"r3000", MipsGenericItineraries, []>;
+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 integer 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 MipsAsmWriter : AsmWriter {
+ string AsmWriterClassName = "InstPrinter";
+ bit isMCAsmWriter = 1;
+}
def Mips : Target {
let InstructionSet = MipsInstrInfo;
+
+ let AssemblyWriters = [MipsAsmWriter];
}