X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FX86%2FX86InstrInfo.td;h=fdb29837fd79502652de35b695e0055ce3d6ff3a;hb=90fd797dc739319347861d4f3984bc8952ae9a29;hp=c1e15e465b995e42619e11d5bf3cef3db5cd2450;hpb=e583c892d8e274cdec17c125b023e2e976df5737;p=oota-llvm.git diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index c1e15e465b9..fdb29837fd7 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -1,10 +1,10 @@ //===- 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 @@ -46,7 +46,7 @@ def SDTX86SetCC_C : SDTypeProfile<1, 2, [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>]>; @@ -64,6 +64,12 @@ def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>, 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, []>; @@ -114,25 +120,25 @@ def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86cas8, [SDNPHasChain, SDNPInFlag, SDNPOutFlag, 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]>; @@ -141,13 +147,16 @@ 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]>; def X86callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd, - [SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>; + [SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>; def X86call : SDNode<"X86ISD::CALL", SDT_X86Call, [SDNPHasChain, SDNPOutFlag, SDNPOptInFlag, @@ -171,7 +180,7 @@ def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR, def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET, [SDNPHasChain]>; -def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET, +def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET, [SDNPHasChain, SDNPOptInFlag, SDNPVariadic]>; def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags, @@ -181,7 +190,7 @@ def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags, [SDNPCommutative]>; def X86umul_flag : SDNode<"X86ISD::UMUL", SDTUnaryArithWithFlags, [SDNPCommutative]>; - + def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>; def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>; def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags, @@ -193,9 +202,9 @@ def X86and_flag : SDNode<"X86ISD::AND", 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, SDNPInFlag, SDNPOutFlag]>; + def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL, []>; @@ -405,8 +414,8 @@ 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 In32BitMode : Predicate<"!Subtarget->is64Bit()">, AssemblerPredicate; +def In64BitMode : Predicate<"Subtarget->is64Bit()">, AssemblerPredicate; def IsWin64 : Predicate<"Subtarget->isTargetWin64()">; def NotWin64 : Predicate<"!Subtarget->isTargetWin64()">; def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">; @@ -464,6 +473,11 @@ def i64immZExt32 : PatLeaf<(i64 imm), [{ return (uint64_t)N->getZExtValue() == (uint32_t)N->getZExtValue(); }]>; +def i64immZExt32SExt8 : PatLeaf<(i64 imm), [{ + uint64_t v = N->getZExtValue(); + return v == (uint32_t)v && (int32_t)v == (int8_t)v; +}]>; + // Helper fragments for loads. // It's always safe to treat a anyext i16 load as a i32 load if the i16 is // known to be 32-bit aligned or better. Ditto for i8 to i16. @@ -544,20 +558,6 @@ def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{ 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(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. // @@ -616,13 +616,13 @@ def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[]>, 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$imm", []>; - + def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize; def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", []>, Requires<[In32BitMode]>; @@ -646,9 +646,9 @@ def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", []>; } let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in { -def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i8imm:$imm), +def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i8imm:$imm), "push{q}\t$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$imm", []>; @@ -677,11 +677,11 @@ def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", []>, let Constraints = "$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 = $dst" @@ -823,7 +823,7 @@ def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins), 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 @@ -879,34 +879,6 @@ def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src), "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, $src}", - []>; -} -} // isCodeGenOnly - // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so // that they can be used for copying and storing h registers, which can't be // encoded when a REX prefix is present. @@ -954,13 +926,13 @@ def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2), // only for now. def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$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:$src2), // (implicit EFLAGS)] [] @@ -1086,20 +1058,17 @@ def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2), // operand is referenced, the atomicity is ensured. let Constraints = "$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:$src), @@ -1210,7 +1179,45 @@ def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", []>, TB; // Table lookup instructions def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", []>; +// ASCII Adjust After Addition +// sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS +def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", []>, Requires<[In32BitMode]>; + +// ASCII Adjust AX Before Division +// sets AL, AH and EFLAGS and uses AL and AH +def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$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. @@ -1244,3 +1251,231 @@ include "X86InstrSystem.td" // 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">; + +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<"fcompi", "fcomip">; +def : MnemonicAlias<"fildq", "fildll">; +def : MnemonicAlias<"fldcww", "fldcw">; +def : MnemonicAlias<"fnstcww", "fnstcw">; +def : MnemonicAlias<"fnstsww", "fnstsw">; +def : MnemonicAlias<"fucompi", "fucomip">; +def : MnemonicAlias<"fwait", "wait">; + + +class CondCodeAlias + : MnemonicAlias; + +/// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of +/// MnemonicAlias's that canonicalize the condition code in a mnemonic, for +/// example "setz" -> "sete". +multiclass IntegerCondCodeMnemonicAlias { + def C : CondCodeAlias; // setc -> setb + def Z : CondCodeAlias; // setz -> sete + def NA : CondCodeAlias; // setna -> setbe + def NB : CondCodeAlias; // setnb -> setae + def NC : CondCodeAlias; // setnc -> setae + def NG : CondCodeAlias; // setng -> setle + def NL : CondCodeAlias; // setnl -> setge + def NZ : CondCodeAlias; // setnz -> setne + def PE : CondCodeAlias; // setpe -> setp + def PO : CondCodeAlias; // setpo -> setnp + + def NAE : CondCodeAlias; // setnae -> setb + def NBE : CondCodeAlias; // setnbe -> seta + def NGE : CondCodeAlias; // setnge -> setl + def NLE : CondCodeAlias; // setnle -> setg +} + +// Aliases for set +defm : IntegerCondCodeMnemonicAlias<"set", "">; +// Aliases for j +defm : IntegerCondCodeMnemonicAlias<"j", "">; +// Aliases for cmov{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)>; + +// 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)>; + +// Default arguments for various fp stack instructions. +def : InstAlias<"fucom", (UCOM_Fr ST1)>; +def : InstAlias<"fucomp", (UCOM_FPr ST1)>; +def : InstAlias<"fcomi", (COM_FIr ST1)>; +def : InstAlias<"fcomi $reg", (COM_FIr RST:$reg)>; +def : InstAlias<"fcomip", (COM_FIPr ST1)>; +def : InstAlias<"fcomip $reg", (COM_FIPr RST:$reg)>; +def : InstAlias<"fucomi", (UCOM_FIr ST1)>; +def : InstAlias<"fucomi $reg", (UCOM_FIr RST:$reg)>; +def : InstAlias<"fucomip", (UCOM_FIPr ST1)>; +def : InstAlias<"fucomip $reg", (UCOM_FIPr RST:$reg)>; + + +// We accepts "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 , B" is an alias for "imul , 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)>; + + +// Match 'movq , ' as an alias for movabsq. +def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>; + +// 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, $dst", (MOVSX16rr8W GR16:$dst, GR8:$src)>; +def : InstAlias<"movsx $src, $dst", (MOVSX16rm8W GR16:$dst, i8mem:$src)>; +def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src)>; +def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src)>; +def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src)>; +def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src)>; +def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src)>; + +// movzx aliases +def : InstAlias<"movzx $src, $dst", (MOVZX16rr8W GR16:$dst, GR8:$src)>; +def : InstAlias<"movzx $src, $dst", (MOVZX16rm8W GR16:$dst, i8mem:$src)>; +def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src)>; +def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src)>; +def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src)>; +def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src)>; +// 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 ' 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)>; + + +// test: We accept "testX , " and "testX , " 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 , " and "xchgX , " 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)>; +