//===- X86InstrInfo.td - Main X86 Instruction Definition ---*- tablegen -*-===//
-//
+//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
// This file describes the X86 instruction set, defining the instructions, and
def SDTX86CmpTest : SDTypeProfile<1, 2, [SDTCisVT<0, i32>, SDTCisSameAs<1, 2>]>;
+def SDTX86Cmpsd : SDTypeProfile<1, 3, [SDTCisVT<0, f64>, SDTCisSameAs<1, 2>, SDTCisVT<3, i8>]>;
+def SDTX86Cmpss : SDTypeProfile<1, 3, [SDTCisVT<0, f32>, SDTCisSameAs<1, 2>, SDTCisVT<3, i8>]>;
+
def SDTX86Cmov : SDTypeProfile<1, 4,
[SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>,
SDTCisVT<3, i8>, SDTCisVT<4, i32>]>;
[SDTCisSameAs<0, 2>,
SDTCisSameAs<0, 3>,
SDTCisInt<0>, SDTCisVT<1, i32>]>;
+
+// SDTBinaryArithWithFlagsInOut - RES1, EFLAGS = op LHS, RHS, EFLAGS
+def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
+ [SDTCisSameAs<0, 2>,
+ SDTCisSameAs<0, 3>,
+ SDTCisInt<0>,
+ SDTCisVT<1, i32>,
+ SDTCisVT<4, i32>]>;
+// RES1, RES2, FLAGS = op LHS, RHS
+def SDT2ResultBinaryArithWithFlags : SDTypeProfile<3, 2,
+ [SDTCisSameAs<0, 1>,
+ SDTCisSameAs<0, 2>,
+ SDTCisSameAs<0, 3>,
+ SDTCisInt<0>, SDTCisVT<1, i32>]>;
def SDTX86BrCond : SDTypeProfile<0, 3,
[SDTCisVT<0, OtherVT>,
SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
[SDTCisInt<0>,
SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
-def SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
+def SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
SDTCisVT<2, i8>]>;
def SDTX86cas8 : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
SDTCisVT<1, iPTR>,
SDTCisVT<2, iPTR>]>;
+def SDT_X86VAARG_64 : SDTypeProfile<1, -1, [SDTCisPtrTy<0>,
+ SDTCisPtrTy<1>,
+ SDTCisVT<2, i32>,
+ SDTCisVT<3, i8>,
+ SDTCisVT<4, i32>]>;
+
def SDTX86RepStr : SDTypeProfile<0, 1, [SDTCisVT<0, OtherVT>]>;
def SDTX86Void : SDTypeProfile<0, 0, []>;
def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
-def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
+def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
- [SDNPHasChain, SDNPInFlag, SDNPOutFlag, SDNPMayStore,
+ [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86cas8,
- [SDNPHasChain, SDNPInFlag, SDNPOutFlag, SDNPMayStore,
+ [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
- [SDNPHasChain, SDNPMayStore,
+ [SDNPHasChain, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
- [SDNPHasChain, SDNPMayStore,
+ [SDNPHasChain, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
- [SDNPHasChain, SDNPMayStore,
+ [SDNPHasChain, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
- [SDNPHasChain, SDNPMayStore,
+ [SDNPHasChain, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
- [SDNPHasChain, SDNPMayStore,
+ [SDNPHasChain, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
- [SDNPHasChain, SDNPMayStore,
+ [SDNPHasChain, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
- [SDNPHasChain, SDNPMayStore,
+ [SDNPHasChain, SDNPMayStore,
SDNPMayLoad, SDNPMemOperand]>;
def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
- [SDNPHasChain, SDNPOptInFlag, SDNPVariadic]>;
+ [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
def X86vastart_save_xmm_regs :
SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
SDT_X86VASTART_SAVE_XMM_REGS,
[SDNPHasChain, SDNPVariadic]>;
-
+def X86vaarg64 :
+ SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
+ [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
+ SDNPMemOperand]>;
def X86callseq_start :
SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
- [SDNPHasChain, SDNPOutFlag]>;
+ [SDNPHasChain, SDNPOutGlue]>;
def X86callseq_end :
SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
- [SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
+ [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
- [SDNPHasChain, SDNPOutFlag, SDNPOptInFlag,
+ [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
SDNPVariadic]>;
def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
- [SDNPHasChain, SDNPInFlag, SDNPOutFlag, SDNPMayStore]>;
+ [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
- [SDNPHasChain, SDNPInFlag, SDNPOutFlag, SDNPMayStore,
+ [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
SDNPMayLoad]>;
def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
- [SDNPHasChain, SDNPOutFlag, SDNPSideEffect]>;
+ [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
- [SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
+ [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
[SDNPHasChain]>;
-def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
- [SDNPHasChain, SDNPOptInFlag, SDNPVariadic]>;
+def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
+ [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
[SDNPCommutative]>;
def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
[SDNPCommutative]>;
-def X86umul_flag : SDNode<"X86ISD::UMUL", SDTUnaryArithWithFlags,
+def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
[SDNPCommutative]>;
-
+def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
+def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
+
def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
-def X86MingwAlloca : SDNode<"X86ISD::MINGW_ALLOCA", SDTX86Void,
- [SDNPHasChain, SDNPInFlag, SDNPOutFlag]>;
-
+def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
+ [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
+
def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
- []>;
+ [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
//===----------------------------------------------------------------------===//
// X86 Operand Definitions.
let ParserMatchClass = X86MemAsmOperand;
}
+let OperandType = "OPERAND_MEMORY" in {
def opaque32mem : X86MemOperand<"printopaquemem">;
def opaque48mem : X86MemOperand<"printopaquemem">;
def opaque80mem : X86MemOperand<"printopaquemem">;
def f80mem : X86MemOperand<"printf80mem">;
def f128mem : X86MemOperand<"printf128mem">;
def f256mem : X86MemOperand<"printf256mem">;
+}
// A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
// plain GR64, so that it doesn't potentially require a REX prefix.
let PrintMethod = "printi8mem";
let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
let ParserMatchClass = X86MemAsmOperand;
+ let OperandType = "OPERAND_MEMORY";
}
+// GPRs available for tailcall.
+// It represents GR64_TC or GR64_TCW64.
+def ptr_rc_tailcall : PointerLikeRegClass<2>;
+
// Special i32mem for addresses of load folding tail calls. These are not
// allowed to use callee-saved registers since they must be scheduled
// after callee-saved register are popped.
let PrintMethod = "printi32mem";
let MIOperandInfo = (ops GR32_TC, i8imm, GR32_TC, i32imm, i8imm);
let ParserMatchClass = X86MemAsmOperand;
+ let OperandType = "OPERAND_MEMORY";
}
// Special i64mem for addresses of load folding tail calls. These are not
// after callee-saved register are popped.
def i64mem_TC : Operand<i64> {
let PrintMethod = "printi64mem";
- let MIOperandInfo = (ops GR64_TC, i8imm, GR64_TC, i32imm, i8imm);
+ let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
+ ptr_rc_tailcall, i32imm, i8imm);
let ParserMatchClass = X86MemAsmOperand;
+ let OperandType = "OPERAND_MEMORY";
}
-let ParserMatchClass = X86AbsMemAsmOperand,
+let OperandType = "OPERAND_PCREL",
+ ParserMatchClass = X86AbsMemAsmOperand,
PrintMethod = "print_pcrel_imm" in {
def i32imm_pcrel : Operand<i32>;
def i16imm_pcrel : Operand<i16>;
def SSECC : Operand<i8> {
let PrintMethod = "printSSECC";
+ let OperandType = "OPERAND_IMMEDIATE";
}
class ImmSExtAsmOperandClass : AsmOperandClass {
let RenderMethod = "addImmOperands";
}
+class ImmZExtAsmOperandClass : AsmOperandClass {
+ let SuperClasses = [ImmAsmOperand];
+ let RenderMethod = "addImmOperands";
+}
+
// Sign-extended immediate classes. We don't need to define the full lattice
// here because there is no instruction with an ambiguity between ImmSExti64i32
// and ImmSExti32i8.
let Name = "ImmSExti32i8";
}
+// [0, 0x000000FF]
+def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
+ let Name = "ImmZExtu32u8";
+}
+
+
// [0, 0x0000007F] |
// [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
// 16-bits but only 8 bits are significant.
def i16i8imm : Operand<i16> {
let ParserMatchClass = ImmSExti16i8AsmOperand;
+ let OperandType = "OPERAND_IMMEDIATE";
}
// 32-bits but only 8 bits are significant.
def i32i8imm : Operand<i32> {
let ParserMatchClass = ImmSExti32i8AsmOperand;
+ let OperandType = "OPERAND_IMMEDIATE";
+}
+// 32-bits but only 8 bits are significant, and those 8 bits are unsigned.
+def u32u8imm : Operand<i32> {
+ let ParserMatchClass = ImmZExtu32u8AsmOperand;
+ let OperandType = "OPERAND_IMMEDIATE";
}
// 64-bits but only 32 bits are significant.
def i64i32imm : Operand<i64> {
let ParserMatchClass = ImmSExti64i32AsmOperand;
+ let OperandType = "OPERAND_IMMEDIATE";
}
// 64-bits but only 32 bits are significant, and those bits are treated as being
def HasCMov : Predicate<"Subtarget->hasCMov()">;
def NoCMov : Predicate<"!Subtarget->hasCMov()">;
-// FIXME: temporary hack to let codegen assert or generate poor code in case
-// no AVX version of the desired intructions is present, this is better for
-// incremental dev (without fallbacks it's easier to spot what's missing)
-def HasMMX : Predicate<"Subtarget->hasMMX() && !Subtarget->hasAVX()">;
+def HasMMX : Predicate<"Subtarget->hasMMX()">;
def Has3DNow : Predicate<"Subtarget->has3DNow()">;
def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
-def HasSSE1 : Predicate<"Subtarget->hasSSE1() && !Subtarget->hasAVX()">;
-def HasSSE2 : Predicate<"Subtarget->hasSSE2() && !Subtarget->hasAVX()">;
-def HasSSE3 : Predicate<"Subtarget->hasSSE3() && !Subtarget->hasAVX()">;
-def HasSSSE3 : Predicate<"Subtarget->hasSSSE3() && !Subtarget->hasAVX()">;
-def HasSSE41 : Predicate<"Subtarget->hasSSE41() && !Subtarget->hasAVX()">;
-def HasSSE42 : Predicate<"Subtarget->hasSSE42() && !Subtarget->hasAVX()">;
-def HasSSE4A : Predicate<"Subtarget->hasSSE4A() && !Subtarget->hasAVX()">;
+def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
+def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
+def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
+def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
+def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
+def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
+def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
def HasAVX : Predicate<"Subtarget->hasAVX()">;
+def HasXMMInt : Predicate<"Subtarget->hasXMMInt()">;
+
+def HasAES : Predicate<"Subtarget->hasAES()">;
def HasCLMUL : Predicate<"Subtarget->hasCLMUL()">;
def HasFMA3 : Predicate<"Subtarget->hasFMA3()">;
def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
-def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
-def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
-def In32BitMode : Predicate<"!Subtarget->is64Bit()">;
-def In64BitMode : Predicate<"Subtarget->is64Bit()">;
+def FPStackf32 : Predicate<"!Subtarget->hasXMM()">;
+def FPStackf64 : Predicate<"!Subtarget->hasXMMInt()">;
+def In32BitMode : Predicate<"!Subtarget->is64Bit()">,
+ AssemblerPredicate<"!Mode64Bit">;
+def In64BitMode : Predicate<"Subtarget->is64Bit()">,
+ AssemblerPredicate<"Mode64Bit">;
def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
def NotWin64 : Predicate<"!Subtarget->isTargetWin64()">;
def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
def OptForSpeed : Predicate<"!OptForSize">;
def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
-def HasAES : Predicate<"Subtarget->hasAES()">;
//===----------------------------------------------------------------------===//
// X86 Instruction Format Definitions.
include "X86InstrFormats.td"
//===----------------------------------------------------------------------===//
-// Pattern fragments...
+// Pattern fragments.
//
// X86 specific condition code. These correspond to CondCode in
def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
def X86_COND_S : PatLeaf<(i8 15)>;
-def immSext8 : PatLeaf<(imm), [{ return immSext8(N); }]>;
+let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
+ def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
+ def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
+ def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
+}
+
+def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
-def i16immSExt8 : PatLeaf<(i16 immSext8)>;
-def i32immSExt8 : PatLeaf<(i32 immSext8)>;
-def i64immSExt8 : PatLeaf<(i64 immSext8)>;
-def i64immSExt32 : PatLeaf<(i64 imm), [{ return i64immSExt32(N); }]>;
-def i64immZExt32 : PatLeaf<(i64 imm), [{
- // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
- // unsignedsign extended field.
- return (uint64_t)N->getZExtValue() == (uint32_t)N->getZExtValue();
+
+// i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
+// unsigned field.
+def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
+
+def i64immZExt32SExt8 : ImmLeaf<i64, [{
+ return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
}]>;
// Helper fragments for loads.
return N->hasOneUse();
}]>;
-// Treat an 'or' node is as an 'add' if the or'ed bits are known to be zero.
-def or_is_add : PatFrag<(ops node:$lhs, node:$rhs), (or node:$lhs, node:$rhs),[{
- if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1)))
- return CurDAG->MaskedValueIsZero(N->getOperand(0), CN->getAPIntValue());
-
- unsigned BitWidth = N->getValueType(0).getScalarType().getSizeInBits();
- APInt Mask = APInt::getAllOnesValue(BitWidth);
- APInt KnownZero0, KnownOne0;
- CurDAG->ComputeMaskedBits(N->getOperand(0), Mask, KnownZero0, KnownOne0, 0);
- APInt KnownZero1, KnownOne1;
- CurDAG->ComputeMaskedBits(N->getOperand(1), Mask, KnownZero1, KnownOne1, 0);
- return (~KnownZero0 & ~KnownZero1) == 0;
-}]>;
-
//===----------------------------------------------------------------------===//
// Instruction list.
//
def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[]>;
-def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
+def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
"push{l}\t$imm", []>;
-def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
+def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
"push{w}\t$imm", []>, OpSize;
-def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
+def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
"push{l}\t$imm", []>;
-
+
def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize;
def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", []>,
Requires<[In32BitMode]>;
}
let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in {
-def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i8imm:$imm),
+def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
"push{q}\t$imm", []>;
-def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
+def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
"push{q}\t$imm", []>;
def PUSH64i32 : Ii32<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
"push{q}\t$imm", []>;
let Constraints = "$src = $dst" in { // GR32 = bswap GR32
def BSWAP32r : I<0xC8, AddRegFrm,
(outs GR32:$dst), (ins GR32:$src),
- "bswap{l}\t$dst",
+ "bswap{l}\t$dst",
[(set GR32:$dst, (bswap GR32:$src))]>, TB;
-
+
def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
- "bswap{q}\t$dst",
+ "bswap{q}\t$dst",
[(set GR64:$dst, (bswap GR64:$src))]>, TB;
} // Constraints = "$src = $dst"
def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
"mov{l}\t{%eax, $dst|$dst, %eax}", []>,
Requires<[In32BitMode]>;
-
+
// FIXME: These definitions are utterly broken
// Just leave them commented out for now because they're useless outside
// of the large code model, and most compilers won't generate the instructions
"mov{q}\t{$src, $dst|$dst, $src}",
[(store GR64:$src, addr:$dst)]>;
-/// Versions of MOV32rr, MOV32rm, and MOV32mr for i32mem_TC and GR32_TC.
-let isCodeGenOnly = 1 in {
-let neverHasSideEffects = 1 in {
-def MOV32rr_TC : I<0x89, MRMDestReg, (outs GR32_TC:$dst), (ins GR32_TC:$src),
- "mov{l}\t{$src, $dst|$dst, $src}", []>;
-def MOV64rr_TC : RI<0x89, MRMDestReg, (outs GR64_TC:$dst), (ins GR64_TC:$src),
- "mov{q}\t{$src, $dst|$dst, $src}", []>;
-}
-
-let mayLoad = 1, canFoldAsLoad = 1, isReMaterializable = 1 in {
-def MOV32rm_TC : I<0x8B, MRMSrcMem, (outs GR32_TC:$dst), (ins i32mem_TC:$src),
- "mov{l}\t{$src, $dst|$dst, $src}",
- []>;
-def MOV64rm_TC : RI<0x8B, MRMSrcMem, (outs GR64_TC:$dst), (ins i64mem_TC:$src),
- "mov{q}\t{$src, $dst|$dst, $src}",
- []>;
-}
-
-let mayStore = 1 in
-def MOV32mr_TC : I<0x89, MRMDestMem, (outs), (ins i32mem_TC:$dst, GR32_TC:$src),
- "mov{l}\t{$src, $dst|$dst, $src}",
- []>;
-def MOV64mr_TC : RI<0x89, MRMDestMem, (outs), (ins i64mem_TC:$dst, GR64_TC:$src),
- "mov{q}\t{$src, $dst|$dst, $src}",
- []>;
-}
-
// Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
// that they can be used for copying and storing h registers, which can't be
// encoded when a REX prefix is present.
// only for now.
def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
- "bt{w}\t{$src2, $src1|$src1, $src2}",
+ "bt{w}\t{$src2, $src1|$src1, $src2}",
// [(X86bt (loadi16 addr:$src1), GR16:$src2),
// (implicit EFLAGS)]
[]
>, OpSize, TB, Requires<[FastBTMem]>;
def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
- "bt{l}\t{$src2, $src1|$src1, $src2}",
+ "bt{l}\t{$src2, $src1|$src1, $src2}",
// [(X86bt (loadi32 addr:$src1), GR32:$src2),
// (implicit EFLAGS)]
[]
// operand is referenced, the atomicity is ensured.
let Constraints = "$val = $dst" in {
def XCHG8rm : I<0x86, MRMSrcMem, (outs GR8:$dst), (ins GR8:$val, i8mem:$ptr),
- "xchg{b}\t{$val, $ptr|$ptr, $val}",
+ "xchg{b}\t{$val, $ptr|$ptr, $val}",
[(set GR8:$dst, (atomic_swap_8 addr:$ptr, GR8:$val))]>;
-def XCHG16rm : I<0x87, MRMSrcMem, (outs GR16:$dst),
- (ins GR16:$val, i16mem:$ptr),
- "xchg{w}\t{$val, $ptr|$ptr, $val}",
- [(set GR16:$dst, (atomic_swap_16 addr:$ptr, GR16:$val))]>,
+def XCHG16rm : I<0x87, MRMSrcMem, (outs GR16:$dst),(ins GR16:$val, i16mem:$ptr),
+ "xchg{w}\t{$val, $ptr|$ptr, $val}",
+ [(set GR16:$dst, (atomic_swap_16 addr:$ptr, GR16:$val))]>,
OpSize;
-def XCHG32rm : I<0x87, MRMSrcMem, (outs GR32:$dst),
- (ins GR32:$val, i32mem:$ptr),
- "xchg{l}\t{$val, $ptr|$ptr, $val}",
+def XCHG32rm : I<0x87, MRMSrcMem, (outs GR32:$dst),(ins GR32:$val, i32mem:$ptr),
+ "xchg{l}\t{$val, $ptr|$ptr, $val}",
[(set GR32:$dst, (atomic_swap_32 addr:$ptr, GR32:$val))]>;
-def XCHG64rm : RI<0x87, MRMSrcMem, (outs GR64:$dst),
- (ins GR64:$val,i64mem:$ptr),
- "xchg{q}\t{$val, $ptr|$ptr, $val}",
+def XCHG64rm : RI<0x87, MRMSrcMem, (outs GR64:$dst),(ins GR64:$val,i64mem:$ptr),
+ "xchg{q}\t{$val, $ptr|$ptr, $val}",
[(set GR64:$dst, (atomic_swap_64 addr:$ptr, GR64:$val))]>;
def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
// Lock instruction prefix
def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
+// Rex64 instruction prefix
+def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>;
+
+// Data16 instruction prefix
+def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
+
// Repeat string operation instruction prefixes
// These uses the DF flag in the EFLAGS register to inc or dec ECX
let Defs = [ECX], Uses = [ECX,EFLAGS] in {
// Table lookup instructions
def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", []>;
+// ASCII Adjust After Addition
+// sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
+def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", []>, Requires<[In32BitMode]>;
+
+// ASCII Adjust AX Before Division
+// sets AL, AH and EFLAGS and uses AL and AH
+def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
+ "aad\t$src", []>, Requires<[In32BitMode]>;
+
+// ASCII Adjust AX After Multiply
+// sets AL, AH and EFLAGS and uses AL
+def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
+ "aam\t$src", []>, Requires<[In32BitMode]>;
+
+// ASCII Adjust AL After Subtraction - sets
+// sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
+def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", []>, Requires<[In32BitMode]>;
+
+// Decimal Adjust AL after Addition
+// sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
+def DAA : I<0x27, RawFrm, (outs), (ins), "daa", []>, Requires<[In32BitMode]>;
+// Decimal Adjust AL after Subtraction
+// sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
+def DAS : I<0x2F, RawFrm, (outs), (ins), "das", []>, Requires<[In32BitMode]>;
+
+// Check Array Index Against Bounds
+def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
+ "bound\t{$src, $dst|$dst, $src}", []>, OpSize,
+ Requires<[In32BitMode]>;
+def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
+ "bound\t{$src, $dst|$dst, $src}", []>,
+ Requires<[In32BitMode]>;
+
+// Adjust RPL Field of Segment Selector
+def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$src), (ins GR16:$dst),
+ "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
+def ARPL16mr : I<0x63, MRMSrcMem, (outs GR16:$src), (ins i16mem:$dst),
+ "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
//===----------------------------------------------------------------------===//
// Subsystems.
// Compiler Pseudo Instructions and Pat Patterns
include "X86InstrCompiler.td"
+//===----------------------------------------------------------------------===//
+// Assembler Mnemonic Aliases
+//===----------------------------------------------------------------------===//
+
+def : MnemonicAlias<"call", "calll">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"call", "callq">, Requires<[In64BitMode]>;
+
+def : MnemonicAlias<"cbw", "cbtw">;
+def : MnemonicAlias<"cwd", "cwtd">;
+def : MnemonicAlias<"cdq", "cltd">;
+def : MnemonicAlias<"cwde", "cwtl">;
+def : MnemonicAlias<"cdqe", "cltq">;
+
+// lret maps to lretl, it is not ambiguous with lretq.
+def : MnemonicAlias<"lret", "lretl">;
+
+def : MnemonicAlias<"leavel", "leave">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"leaveq", "leave">, Requires<[In64BitMode]>;
+
+def : MnemonicAlias<"loopz", "loope">;
+def : MnemonicAlias<"loopnz", "loopne">;
+
+def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;
+def : MnemonicAlias<"popf", "popfl">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"popf", "popfq">, Requires<[In64BitMode]>;
+def : MnemonicAlias<"popfd", "popfl">;
+
+// FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
+// all modes. However: "push (addr)" and "push $42" should default to
+// pushl/pushq depending on the current mode. Similar for "pop %bx"
+def : MnemonicAlias<"push", "pushl">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"push", "pushq">, Requires<[In64BitMode]>;
+def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>;
+def : MnemonicAlias<"pushfd", "pushfl">;
+
+def : MnemonicAlias<"repe", "rep">;
+def : MnemonicAlias<"repz", "rep">;
+def : MnemonicAlias<"repnz", "repne">;
+
+def : MnemonicAlias<"retl", "ret">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"retq", "ret">, Requires<[In64BitMode]>;
+
+def : MnemonicAlias<"salb", "shlb">;
+def : MnemonicAlias<"salw", "shlw">;
+def : MnemonicAlias<"sall", "shll">;
+def : MnemonicAlias<"salq", "shlq">;
+
+def : MnemonicAlias<"smovb", "movsb">;
+def : MnemonicAlias<"smovw", "movsw">;
+def : MnemonicAlias<"smovl", "movsl">;
+def : MnemonicAlias<"smovq", "movsq">;
+
+def : MnemonicAlias<"ud2a", "ud2">;
+def : MnemonicAlias<"verrw", "verr">;
+
+// System instruction aliases.
+def : MnemonicAlias<"iret", "iretl">;
+def : MnemonicAlias<"sysret", "sysretl">;
+
+def : MnemonicAlias<"lgdtl", "lgdt">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"lgdtq", "lgdt">, Requires<[In64BitMode]>;
+def : MnemonicAlias<"lidtl", "lidt">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"lidtq", "lidt">, Requires<[In64BitMode]>;
+def : MnemonicAlias<"sgdtl", "sgdt">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"sgdtq", "sgdt">, Requires<[In64BitMode]>;
+def : MnemonicAlias<"sidtl", "sidt">, Requires<[In32BitMode]>;
+def : MnemonicAlias<"sidtq", "sidt">, Requires<[In64BitMode]>;
+
+
+// Floating point stack aliases.
+def : MnemonicAlias<"fcmovz", "fcmove">;
+def : MnemonicAlias<"fcmova", "fcmovnbe">;
+def : MnemonicAlias<"fcmovnae", "fcmovb">;
+def : MnemonicAlias<"fcmovna", "fcmovbe">;
+def : MnemonicAlias<"fcmovae", "fcmovnb">;
+def : MnemonicAlias<"fcomip", "fcompi">;
+def : MnemonicAlias<"fildq", "fildll">;
+def : MnemonicAlias<"fldcww", "fldcw">;
+def : MnemonicAlias<"fnstcww", "fnstcw">;
+def : MnemonicAlias<"fnstsww", "fnstsw">;
+def : MnemonicAlias<"fucomip", "fucompi">;
+def : MnemonicAlias<"fwait", "wait">;
+
+
+class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond>
+ : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
+ !strconcat(Prefix, NewCond, Suffix)>;
+
+/// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
+/// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
+/// example "setz" -> "sete".
+multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix> {
+ def C : CondCodeAlias<Prefix, Suffix, "c", "b">; // setc -> setb
+ def Z : CondCodeAlias<Prefix, Suffix, "z" , "e">; // setz -> sete
+ def NA : CondCodeAlias<Prefix, Suffix, "na", "be">; // setna -> setbe
+ def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae">; // setnb -> setae
+ def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae">; // setnc -> setae
+ def NG : CondCodeAlias<Prefix, Suffix, "ng", "le">; // setng -> setle
+ def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge">; // setnl -> setge
+ def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne">; // setnz -> setne
+ def PE : CondCodeAlias<Prefix, Suffix, "pe", "p">; // setpe -> setp
+ def PO : CondCodeAlias<Prefix, Suffix, "po", "np">; // setpo -> setnp
+
+ def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b">; // setnae -> setb
+ def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a">; // setnbe -> seta
+ def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l">; // setnge -> setl
+ def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g">; // setnle -> setg
+}
+
+// Aliases for set<CC>
+defm : IntegerCondCodeMnemonicAlias<"set", "">;
+// Aliases for j<CC>
+defm : IntegerCondCodeMnemonicAlias<"j", "">;
+// Aliases for cmov<CC>{w,l,q}
+defm : IntegerCondCodeMnemonicAlias<"cmov", "w">;
+defm : IntegerCondCodeMnemonicAlias<"cmov", "l">;
+defm : IntegerCondCodeMnemonicAlias<"cmov", "q">;
+
+
+//===----------------------------------------------------------------------===//
+// Assembler Instruction Aliases
+//===----------------------------------------------------------------------===//
+
+// aad/aam default to base 10 if no operand is specified.
+def : InstAlias<"aad", (AAD8i8 10)>;
+def : InstAlias<"aam", (AAM8i8 10)>;
+
+// Disambiguate the mem/imm form of bt-without-a-suffix as btl.
+def : InstAlias<"bt $imm, $mem", (BT32mi8 i32mem:$mem, i32i8imm:$imm)>;
+
+// clr aliases.
+def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
+def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
+def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
+def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
+
+// div and idiv aliases for explicit A register.
+def : InstAlias<"divb $src, %al", (DIV8r GR8 :$src)>;
+def : InstAlias<"divw $src, %ax", (DIV16r GR16:$src)>;
+def : InstAlias<"divl $src, %eax", (DIV32r GR32:$src)>;
+def : InstAlias<"divq $src, %rax", (DIV64r GR64:$src)>;
+def : InstAlias<"divb $src, %al", (DIV8m i8mem :$src)>;
+def : InstAlias<"divw $src, %ax", (DIV16m i16mem:$src)>;
+def : InstAlias<"divl $src, %eax", (DIV32m i32mem:$src)>;
+def : InstAlias<"divq $src, %rax", (DIV64m i64mem:$src)>;
+def : InstAlias<"idivb $src, %al", (IDIV8r GR8 :$src)>;
+def : InstAlias<"idivw $src, %ax", (IDIV16r GR16:$src)>;
+def : InstAlias<"idivl $src, %eax", (IDIV32r GR32:$src)>;
+def : InstAlias<"idivq $src, %rax", (IDIV64r GR64:$src)>;
+def : InstAlias<"idivb $src, %al", (IDIV8m i8mem :$src)>;
+def : InstAlias<"idivw $src, %ax", (IDIV16m i16mem:$src)>;
+def : InstAlias<"idivl $src, %eax", (IDIV32m i32mem:$src)>;
+def : InstAlias<"idivq $src, %rax", (IDIV64m i64mem:$src)>;
+
+
+
+// Various unary fpstack operations default to operating on on ST1.
+// For example, "fxch" -> "fxch %st(1)"
+def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
+def : InstAlias<"fsubp", (SUBR_FPrST0 ST1)>;
+def : InstAlias<"fsubrp", (SUB_FPrST0 ST1)>;
+def : InstAlias<"fmulp", (MUL_FPrST0 ST1)>;
+def : InstAlias<"fdivp", (DIVR_FPrST0 ST1)>;
+def : InstAlias<"fdivrp", (DIV_FPrST0 ST1)>;
+def : InstAlias<"fxch", (XCH_F ST1)>;
+def : InstAlias<"fcomi", (COM_FIr ST1)>;
+def : InstAlias<"fcompi", (COM_FIPr ST1)>;
+def : InstAlias<"fucom", (UCOM_Fr ST1)>;
+def : InstAlias<"fucomp", (UCOM_FPr ST1)>;
+def : InstAlias<"fucomi", (UCOM_FIr ST1)>;
+def : InstAlias<"fucompi", (UCOM_FIPr ST1)>;
+
+// Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
+// For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
+// instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
+// gas.
+multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
+ def : InstAlias<!strconcat(Mnemonic, " $op, %st(0)"),
+ (Inst RST:$op), EmitAlias>;
+ def : InstAlias<!strconcat(Mnemonic, " %st(0), %st(0)"),
+ (Inst ST0), EmitAlias>;
+}
+
+defm : FpUnaryAlias<"fadd", ADD_FST0r>;
+defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
+defm : FpUnaryAlias<"fsub", SUB_FST0r>;
+defm : FpUnaryAlias<"fsubp", SUBR_FPrST0>;
+defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
+defm : FpUnaryAlias<"fsubrp", SUB_FPrST0>;
+defm : FpUnaryAlias<"fmul", MUL_FST0r>;
+defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
+defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
+defm : FpUnaryAlias<"fdivp", DIVR_FPrST0>;
+defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
+defm : FpUnaryAlias<"fdivrp", DIV_FPrST0>;
+defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
+defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
+defm : FpUnaryAlias<"fcompi", COM_FIPr>;
+defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
+
+
+// Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
+// commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
+// solely because gas supports it.
+def : InstAlias<"faddp %st(0), $op", (ADD_FPrST0 RST:$op), 0>;
+def : InstAlias<"fmulp %st(0), $op", (MUL_FPrST0 RST:$op)>;
+def : InstAlias<"fsubp %st(0), $op", (SUBR_FPrST0 RST:$op)>;
+def : InstAlias<"fsubrp %st(0), $op", (SUB_FPrST0 RST:$op)>;
+def : InstAlias<"fdivp %st(0), $op", (DIVR_FPrST0 RST:$op)>;
+def : InstAlias<"fdivrp %st(0), $op", (DIV_FPrST0 RST:$op)>;
+
+// We accept "fnstsw %eax" even though it only writes %ax.
+def : InstAlias<"fnstsw %eax", (FNSTSW8r)>;
+def : InstAlias<"fnstsw %al" , (FNSTSW8r)>;
+def : InstAlias<"fnstsw" , (FNSTSW8r)>;
+
+// lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
+// this is compatible with what GAS does.
+def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst)>;
+def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst)>;
+
+// "imul <imm>, B" is an alias for "imul <imm>, B, B".
+def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
+def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
+def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
+def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
+def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
+def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
+
+// inb %dx -> inb %al, %dx
+def : InstAlias<"inb %dx", (IN8rr)>;
+def : InstAlias<"inw %dx", (IN16rr)>;
+def : InstAlias<"inl %dx", (IN32rr)>;
+def : InstAlias<"inb $port", (IN8ri i8imm:$port)>;
+def : InstAlias<"inw $port", (IN16ri i8imm:$port)>;
+def : InstAlias<"inl $port", (IN32ri i8imm:$port)>;
+
+
+// jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
+def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
+def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
+def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
+
+// Force mov without a suffix with a segment and mem to prefer the 'l' form of
+// the move. All segment/mem forms are equivalent, this has the shortest
+// encoding.
+def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
+def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
+
+// Match 'movq <largeimm>, <reg>' as an alias for movabsq.
+def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
+
+// Match 'movq GR64, MMX' as an alias for movd.
+def : InstAlias<"movq $src, $dst",
+ (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
+def : InstAlias<"movq $src, $dst",
+ (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
+
+// movsd with no operands (as opposed to the SSE scalar move of a double) is an
+// alias for movsl. (as in rep; movsd)
+def : InstAlias<"movsd", (MOVSD)>;
+
+// movsx aliases
+def : InstAlias<"movsx $src, $dst", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
+def : InstAlias<"movsx $src, $dst", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
+def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
+def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
+def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
+def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
+def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
+
+// movzx aliases
+def : InstAlias<"movzx $src, $dst", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
+def : InstAlias<"movzx $src, $dst", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
+def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
+def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
+def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
+def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
+// Note: No GR32->GR64 movzx form.
+
+// outb %dx -> outb %al, %dx
+def : InstAlias<"outb %dx", (OUT8rr)>;
+def : InstAlias<"outw %dx", (OUT16rr)>;
+def : InstAlias<"outl %dx", (OUT32rr)>;
+def : InstAlias<"outb $port", (OUT8ir i8imm:$port)>;
+def : InstAlias<"outw $port", (OUT16ir i8imm:$port)>;
+def : InstAlias<"outl $port", (OUT32ir i8imm:$port)>;
+
+// 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
+// effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
+// errors, since its encoding is the most compact.
+def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem)>;
+
+// shld/shrd op,op -> shld op, op, 1
+def : InstAlias<"shldw $r1, $r2", (SHLD16rri8 GR16:$r1, GR16:$r2, 1)>;
+def : InstAlias<"shldl $r1, $r2", (SHLD32rri8 GR32:$r1, GR32:$r2, 1)>;
+def : InstAlias<"shldq $r1, $r2", (SHLD64rri8 GR64:$r1, GR64:$r2, 1)>;
+def : InstAlias<"shrdw $r1, $r2", (SHRD16rri8 GR16:$r1, GR16:$r2, 1)>;
+def : InstAlias<"shrdl $r1, $r2", (SHRD32rri8 GR32:$r1, GR32:$r2, 1)>;
+def : InstAlias<"shrdq $r1, $r2", (SHRD64rri8 GR64:$r1, GR64:$r2, 1)>;
+
+def : InstAlias<"shldw $mem, $reg", (SHLD16mri8 i16mem:$mem, GR16:$reg, 1)>;
+def : InstAlias<"shldl $mem, $reg", (SHLD32mri8 i32mem:$mem, GR32:$reg, 1)>;
+def : InstAlias<"shldq $mem, $reg", (SHLD64mri8 i64mem:$mem, GR64:$reg, 1)>;
+def : InstAlias<"shrdw $mem, $reg", (SHRD16mri8 i16mem:$mem, GR16:$reg, 1)>;
+def : InstAlias<"shrdl $mem, $reg", (SHRD32mri8 i32mem:$mem, GR32:$reg, 1)>;
+def : InstAlias<"shrdq $mem, $reg", (SHRD64mri8 i64mem:$mem, GR64:$reg, 1)>;
+
+/* FIXME: This is disabled because the asm matcher is currently incapable of
+ * matching a fixed immediate like $1.
+// "shl X, $1" is an alias for "shl X".
+multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
+ def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
+ def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
+ def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
+ def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
+ def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
+ def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
+ def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
+ def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
+ (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
+}
+
+defm : ShiftRotateByOneAlias<"rcl", "RCL">;
+defm : ShiftRotateByOneAlias<"rcr", "RCR">;
+defm : ShiftRotateByOneAlias<"rol", "ROL">;
+defm : ShiftRotateByOneAlias<"ror", "ROR">;
+FIXME */
+
+// test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
+def : InstAlias<"testb $val, $mem", (TEST8rm GR8 :$val, i8mem :$mem)>;
+def : InstAlias<"testw $val, $mem", (TEST16rm GR16:$val, i16mem:$mem)>;
+def : InstAlias<"testl $val, $mem", (TEST32rm GR32:$val, i32mem:$mem)>;
+def : InstAlias<"testq $val, $mem", (TEST64rm GR64:$val, i64mem:$mem)>;
+
+// xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
+def : InstAlias<"xchgb $mem, $val", (XCHG8rm GR8 :$val, i8mem :$mem)>;
+def : InstAlias<"xchgw $mem, $val", (XCHG16rm GR16:$val, i16mem:$mem)>;
+def : InstAlias<"xchgl $mem, $val", (XCHG32rm GR32:$val, i32mem:$mem)>;
+def : InstAlias<"xchgq $mem, $val", (XCHG64rm GR64:$val, i64mem:$mem)>;
projects / oota-llvm.git / blobdiff