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//===- X86InstrInfo.td - Main X86 Instruction Definition ---*- tablegen -*-===//
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//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
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//
//===----------------------------------------------------------------------===//
//
// This file describes the X86 instruction set, defining the instructions, and
// properties of the instructions which are needed for code generation, machine
// code emission, and analysis.
//
//===----------------------------------------------------------------------===//

//===----------------------------------------------------------------------===//
// X86 specific DAG Nodes.
//

def SDTIntShiftDOp: SDTypeProfile<1, 3,
                                  [SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>,
                                   SDTCisInt<0>, SDTCisInt<3>]>;

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>]>;
// Unary and binary operator instructions that set EFLAGS as a side-effect.
def SDTUnaryArithWithFlags : SDTypeProfile<2, 1,
                                           [SDTCisInt<0>, SDTCisVT<1, i32>]>;

def SDTBinaryArithWithFlags : SDTypeProfile<2, 2,
                                            [SDTCisSameAs<0, 2>,
                                             SDTCisSameAs<0, 3>,
                                             SDTCisInt<0>, SDTCisVT<1, i32>]>;
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// 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>]>;
def SDTX86SetCC   : SDTypeProfile<1, 2,
                                  [SDTCisVT<0, i8>,
                                   SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
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def SDTX86SetCC_C : SDTypeProfile<1, 2,
                                  [SDTCisInt<0>,
                                   SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
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def SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
                                     SDTCisVT<2, i8>]>;
def SDTX86caspair : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
def SDTX86atomicBinary : SDTypeProfile<2, 3, [SDTCisInt<0>, SDTCisInt<1>,
                                SDTCisPtrTy<2>, SDTCisInt<3>,SDTCisInt<4>]>;
def SDTX86Ret     : SDTypeProfile<0, -1, [SDTCisVT<0, i16>]>;
def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
def SDT_X86CallSeqEnd   : SDCallSeqEnd<[SDTCisVT<0, i32>,
                                        SDTCisVT<1, i32>]>;
def SDT_X86Call   : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
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, []>;
def SDTX86Wrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;

def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
def SDT_X86SEG_ALLOCA : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;

def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;

def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;

def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
def SDT_X86MEMBARRIERNoSSE : SDTypeProfile<0, 1, [SDTCisInt<0>]>;

def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
                            [SDNPHasChain]>;
def X86MemBarrierNoSSE : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIERNoSSE,
                                [SDNPHasChain]>;
def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
                        [SDNPHasChain]>;
def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
                        [SDNPHasChain]>;
def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
                        [SDNPHasChain]>;


def X86bsf     : SDNode<"X86ISD::BSF",      SDTUnaryArithWithFlags>;
def X86bsr     : SDNode<"X86ISD::BSR",      SDTUnaryArithWithFlags>;
def X86shld    : SDNode<"X86ISD::SHLD",     SDTIntShiftDOp>;
def X86shrd    : SDNode<"X86ISD::SHRD",     SDTIntShiftDOp>;
def X86cmp     : SDNode<"X86ISD::CMP" ,     SDTX86CmpTest>;
def X86bt      : SDNode<"X86ISD::BT",       SDTX86CmpTest>;

def X86cmov    : SDNode<"X86ISD::CMOV",     SDTX86Cmov>;
def X86brcond  : SDNode<"X86ISD::BRCOND",   SDTX86BrCond,
def X86setcc   : SDNode<"X86ISD::SETCC",    SDTX86SetCC>;
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def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
                        [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
                        [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
                        [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;

def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
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                        [SDNPHasChain, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;
def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
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                        [SDNPHasChain, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;
def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
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                        [SDNPHasChain, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;
def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
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                        [SDNPHasChain, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;
def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
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                        [SDNPHasChain, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;
def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
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                        [SDNPHasChain, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;
def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
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                        [SDNPHasChain, SDNPMayStore,
                         SDNPMayLoad, SDNPMemOperand]>;
def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
                        [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, SDNPOutGlue]>;
def X86callseq_end :
                 SDNode<"ISD::CALLSEQ_END",   SDT_X86CallSeqEnd,
                        [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
def X86call    : SDNode<"X86ISD::CALL",     SDT_X86Call,
                        [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
                        [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
                        [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
                         SDNPMayLoad]>;
def X86rdtsc   : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
                        [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
def X86Wrapper    : SDNode<"X86ISD::Wrapper",     SDTX86Wrapper>;
def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP",  SDTX86Wrapper>;
def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
                        [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
                        [SDNPHasChain]>;

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def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
                        [SDNPHasChain,  SDNPOptInGlue, SDNPVariadic]>;
def X86add_flag  : SDNode<"X86ISD::ADD",  SDTBinaryArithWithFlags,
def X86sub_flag  : SDNode<"X86ISD::SUB",  SDTBinaryArithWithFlags>;
def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
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 X86xor_flag  : SDNode<"X86ISD::XOR",  SDTBinaryArithWithFlags,
def X86and_flag  : SDNode<"X86ISD::AND",  SDTBinaryArithWithFlags,
def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;

def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
                          [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
                          [SDNPHasChain]>;

def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
                        [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
//===----------------------------------------------------------------------===//
// X86 Operand Definitions.
//

// A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
// the index operand of an address, to conform to x86 encoding restrictions.
def ptr_rc_nosp : PointerLikeRegClass<1>;
// *mem - Operand definitions for the funky X86 addressing mode operands.
//
def X86MemAsmOperand : AsmOperandClass {
  let Name = "Mem";
def X86AbsMemAsmOperand : AsmOperandClass {
  let Name = "AbsMem";
  let SuperClasses = [X86MemAsmOperand];
class X86MemOperand<string printMethod> : Operand<iPTR> {
  let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
  let ParserMatchClass = X86MemAsmOperand;
let OperandType = "OPERAND_MEMORY" in {
def opaque32mem : X86MemOperand<"printopaquemem">;
def opaque48mem : X86MemOperand<"printopaquemem">;
def opaque80mem : X86MemOperand<"printopaquemem">;
def opaque512mem : X86MemOperand<"printopaquemem">;

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def i8mem   : X86MemOperand<"printi8mem">;
def i16mem  : X86MemOperand<"printi16mem">;
def i32mem  : X86MemOperand<"printi32mem">;
def i64mem  : X86MemOperand<"printi64mem">;
def i128mem : X86MemOperand<"printi128mem">;
def i256mem : X86MemOperand<"printi256mem">;
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def f32mem  : X86MemOperand<"printf32mem">;
def f64mem  : X86MemOperand<"printf64mem">;
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.
def i8mem_NOREX : Operand<i64> {
  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.
def i32mem_TC : Operand<i32> {
  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
// allowed to use callee-saved registers since they must be scheduled
// after callee-saved register are popped.
def i64mem_TC : Operand<i64> {
  let PrintMethod = "printi64mem";
  let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
                       ptr_rc_tailcall, i32imm, i8imm);
  let ParserMatchClass = X86MemAsmOperand;
  let OperandType = "OPERAND_MEMORY";
let OperandType = "OPERAND_PCREL",
    ParserMatchClass = X86AbsMemAsmOperand,
    PrintMethod = "print_pcrel_imm" in {
def i16imm_pcrel : Operand<i16>;

def offset8 : Operand<i64>;
def offset16 : Operand<i64>;
def offset32 : Operand<i64>;
def offset64 : Operand<i64>;

// Branch targets have OtherVT type and print as pc-relative values.
def brtarget : Operand<OtherVT>;
def brtarget8 : Operand<OtherVT>;

}

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.
//
// The strange ranges come from the fact that the assembler always works with
// 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
// (which will be a -1ULL), and "0xFF" (-1 in 16-bits).

// [0, 0x7FFFFFFF]                                            |
//   [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
  let Name = "ImmSExti64i32";
}

// [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
//   [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
  let Name = "ImmSExti16i8";
  let SuperClasses = [ImmSExti64i32AsmOperand];
}

// [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
//   [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
  let Name = "ImmSExti32i8";
}

// [0, 0x000000FF]
def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
  let Name = "ImmZExtu32u8";
}


// [0, 0x0000007F]                                            |
//   [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
  let Name = "ImmSExti64i8";
  let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
                      ImmSExti64i32AsmOperand];
// A couple of more descriptive operand definitions.
// 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
// pc relative.
def i64i32imm_pcrel : Operand<i64> {
  let PrintMethod = "print_pcrel_imm";
  let ParserMatchClass = X86AbsMemAsmOperand;
  let OperandType = "OPERAND_PCREL";
}

// 64-bits but only 8 bits are significant.
def i64i8imm   : Operand<i64> {
  let ParserMatchClass = ImmSExti64i8AsmOperand;
  let OperandType = "OPERAND_IMMEDIATE";
}

def lea64_32mem : Operand<i32> {
  let PrintMethod = "printi32mem";
  let AsmOperandLowerMethod = "lower_lea64_32mem";
  let MIOperandInfo = (ops GR32, i8imm, GR32_NOSP, i32imm, i8imm);
  let ParserMatchClass = X86MemAsmOperand;
}


//===----------------------------------------------------------------------===//
// X86 Complex Pattern Definitions.
//

// Define X86 specific addressing mode.
def addr      : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
                               [add, sub, mul, X86mul_imm, shl, or, frameindex],
                               []>;
def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
                        [add, sub, mul, X86mul_imm, shl, or, frameindex,
                         X86WrapperRIP], []>;

def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
                               [tglobaltlsaddr], []>;

//===----------------------------------------------------------------------===//
// X86 Instruction Predicate Definitions.
def HasCMov      : Predicate<"Subtarget->hasCMov()">;
def NoCMov       : Predicate<"!Subtarget->hasCMov()">;
def HasMMX       : Predicate<"Subtarget->hasMMX()">;
def Has3DNow     : Predicate<"Subtarget->has3DNow()">;
def Has3DNowA    : Predicate<"Subtarget->has3DNowA()">;
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()">;
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def HasAVX       : Predicate<"Subtarget->hasAVX()">;
def HasXMMInt    : Predicate<"Subtarget->hasXMMInt()">;

def HasPOPCNT    : Predicate<"Subtarget->hasPOPCNT()">;
def HasAES       : Predicate<"Subtarget->hasAES()">;
def HasCLMUL     : Predicate<"Subtarget->hasCLMUL()">;
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def HasFMA3      : Predicate<"Subtarget->hasFMA3()">;
def HasFMA4      : Predicate<"Subtarget->hasFMA4()">;
def HasMOVBE     : Predicate<"Subtarget->hasMOVBE()">;
def HasRDRAND    : Predicate<"Subtarget->hasRDRAND()">;
def HasF16C      : Predicate<"Subtarget->hasF16C()">;
def HasLZCNT     : Predicate<"Subtarget->hasLZCNT()">;
def FPStackf32   : Predicate<"!Subtarget->hasXMM()">;
def FPStackf64   : Predicate<"!Subtarget->hasXMMInt()">;
def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
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 IsNaCl       : Predicate<"Subtarget->isTargetNaCl()">,
                             AssemblerPredicate<"ModeNaCl">;
def IsNaCl32     : Predicate<"Subtarget->isTargetNaCl32()">,
                             AssemblerPredicate<"ModeNaCl,!Mode64Bit">;
def IsNaCl64     : Predicate<"Subtarget->isTargetNaCl64()">,
                             AssemblerPredicate<"ModeNaCl,Mode64Bit">;
def NotNaCl      : Predicate<"!Subtarget->isTargetNaCl()">,
                             AssemblerPredicate<"!ModeNaCl">;
def SmallCode    : Predicate<"TM.getCodeModel() == CodeModel::Small">;
def KernelCode   : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
def FarData      : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
                             "TM.getCodeModel() != CodeModel::Kernel">;
def NearData     : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
                             "TM.getCodeModel() == CodeModel::Kernel">;
def IsStatic     : Predicate<"TM.getRelocationModel() == Reloc::Static">;
def IsNotPIC     : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
def OptForSize   : Predicate<"OptForSize">;
def OptForSpeed  : Predicate<"!OptForSize">;
def FastBTMem    : Predicate<"!Subtarget->isBTMemSlow()">;
def CallImmAddr  : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
//===----------------------------------------------------------------------===//
// X86 Instruction Format Definitions.
//===----------------------------------------------------------------------===//
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// X86 specific condition code. These correspond to CondCode in
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// X86InstrInfo.h. They must be kept in synch.
def X86_COND_A   : PatLeaf<(i8 0)>;  // alt. COND_NBE
def X86_COND_AE  : PatLeaf<(i8 1)>;  // alt. COND_NC
def X86_COND_B   : PatLeaf<(i8 2)>;  // alt. COND_C
def X86_COND_BE  : PatLeaf<(i8 3)>;  // alt. COND_NA
def X86_COND_E   : PatLeaf<(i8 4)>;  // alt. COND_Z
def X86_COND_G   : PatLeaf<(i8 5)>;  // alt. COND_NLE
def X86_COND_GE  : PatLeaf<(i8 6)>;  // alt. COND_NL
def X86_COND_L   : PatLeaf<(i8 7)>;  // alt. COND_NGE
def X86_COND_LE  : PatLeaf<(i8 8)>;  // alt. COND_NG
def X86_COND_NE  : PatLeaf<(i8 9)>;  // alt. COND_NZ
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def X86_COND_NO  : PatLeaf<(i8 10)>;
def X86_COND_NP  : PatLeaf<(i8 11)>; // alt. COND_PO
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def X86_COND_NS  : PatLeaf<(i8 12)>;
def X86_COND_O   : PatLeaf<(i8 13)>;
def X86_COND_P   : PatLeaf<(i8 14)>; // alt. COND_PE
def X86_COND_S   : PatLeaf<(i8 15)>;
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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; }]>;
// 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;
// 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.
def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
  LoadSDNode *LD = cast<LoadSDNode>(N);
  ISD::LoadExtType ExtType = LD->getExtensionType();
  if (ExtType == ISD::NON_EXTLOAD)
    return true;
  if (ExtType == ISD::EXTLOAD)
    return LD->getAlignment() >= 2 && !LD->isVolatile();
def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
  LoadSDNode *LD = cast<LoadSDNode>(N);
  ISD::LoadExtType ExtType = LD->getExtensionType();
  if (ExtType == ISD::EXTLOAD)
    return LD->getAlignment() >= 2 && !LD->isVolatile();
  return false;
}]>;

def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
  LoadSDNode *LD = cast<LoadSDNode>(N);
  ISD::LoadExtType ExtType = LD->getExtensionType();
  if (ExtType == ISD::NON_EXTLOAD)
    return true;
  if (ExtType == ISD::EXTLOAD)
    return LD->getAlignment() >= 4 && !LD->isVolatile();
def loadi8  : PatFrag<(ops node:$ptr), (i8  (load node:$ptr))>;
def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
def sextloadi16i8  : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
def sextloadi32i8  : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
def sextloadi64i8  : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;

def zextloadi8i1   : PatFrag<(ops node:$ptr), (i8  (zextloadi1 node:$ptr))>;
def zextloadi16i1  : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
def zextloadi32i1  : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
def zextloadi16i8  : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
def zextloadi32i8  : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
def zextloadi64i1  : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
def zextloadi64i8  : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;

def extloadi8i1    : PatFrag<(ops node:$ptr), (i8  (extloadi1 node:$ptr))>;
def extloadi16i1   : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
def extloadi32i1   : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
def extloadi16i8   : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
def extloadi32i8   : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
def extloadi32i16  : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
def extloadi64i1   : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
def extloadi64i8   : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
def extloadi64i16  : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
def extloadi64i32  : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;

// An 'and' node with a single use.
def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
  return N->hasOneUse();
// An 'srl' node with a single use.
def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
  return N->hasOneUse();
}]>;
// An 'trunc' node with a single use.
def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
  return N->hasOneUse();
}]>;
//===----------------------------------------------------------------------===//
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// Nop
let neverHasSideEffects = 1 in {
  def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", []>;
  def NOOPW : I<0x1f, MRM0m, (outs), (ins i16mem:$zero),
                "nop{w}\t$zero", []>, TB, OpSize;
  def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
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// Constructing a stack frame.
def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
                 "enter\t$len, $lvl", []>;
let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
                 (outs), (ins), "leave", []>, Requires<[In32BitMode]>;
let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
def LEAVE64  : I<0xC9, RawFrm,
                 (outs), (ins), "leave", []>, Requires<[In64BitMode]>;

//===----------------------------------------------------------------------===//
//  Miscellaneous Instructions.
let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
let mayLoad = 1 in {
def POP16r  : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
  OpSize;
def POP32r  : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
  OpSize;
def POP16rmm: I<0x8F, MRM0m, (outs i16mem:$dst), (ins), "pop{w}\t$dst", []>,
  OpSize;
def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
def POP32rmm: I<0x8F, MRM0m, (outs i32mem:$dst), (ins), "pop{l}\t$dst", []>;

def POPF16   : I<0x9D, RawFrm, (outs), (ins), "popf{w}", []>, OpSize;
def POPF32   : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", []>,
               Requires<[In32BitMode]>;
let mayStore = 1 in {
def PUSH16r  : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
  OpSize;
def PUSH32r  : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
  OpSize;
def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[]>,
  OpSize;
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",[]>;
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def PUSHi8   : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
                      "push{l}\t$imm", []>;
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def PUSHi16  : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
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def PUSHi32  : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
                      "push{l}\t$imm", []>;
def PUSHF16  : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize;
def PUSHF32  : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", []>,
               Requires<[In32BitMode]>;
let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
let mayLoad = 1 in {
def POP64r   : I<0x58, AddRegFrm,
                 (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
def POP64rmm: I<0x8F, MRM0m, (outs i64mem:$dst), (ins), "pop{q}\t$dst", []>;
}
let mayStore = 1 in {
def PUSH64r  : I<0x50, AddRegFrm,
                 (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", []>;
}
}

let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in {
def PUSH64i8   : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
                     "push{q}\t$imm", []>;
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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 Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
def POPF64   : I<0x9D, RawFrm, (outs), (ins), "popfq", []>,
               Requires<[In64BitMode]>;
let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
def PUSHF64    : I<0x9C, RawFrm, (outs), (ins), "pushfq", []>,
                 Requires<[In64BitMode]>;



let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
    mayLoad=1, neverHasSideEffects=1 in {
def POPA32   : I<0x61, RawFrm, (outs), (ins), "popa{l}", []>,
               Requires<[In32BitMode]>;
}
let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
    mayStore=1, neverHasSideEffects=1 in {
def PUSHA32  : I<0x60, RawFrm, (outs), (ins), "pusha{l}", []>,
               Requires<[In32BitMode]>;
}

let Constraints = "$src = $dst" in {    // GR32 = bswap GR32
def BSWAP32r : I<0xC8, AddRegFrm,
                 (outs GR32:$dst), (ins GR32:$src),
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                 "bswap{l}\t$dst",
                 [(set GR32:$dst, (bswap GR32:$src))]>, TB;
def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
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                  "bswap{q}\t$dst",
                  [(set GR64:$dst, (bswap GR64:$src))]>, TB;
} // Constraints = "$src = $dst"
// Bit scan instructions.
let Defs = [EFLAGS] in {
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def BSF16rr  : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
                 "bsf{w}\t{$src, $dst|$dst, $src}",
                 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))]>, TB, OpSize;
def BSF16rm  : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
                 "bsf{w}\t{$src, $dst|$dst, $src}",
                 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))]>, TB,
                 OpSize;
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def BSF32rr  : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
                 "bsf{l}\t{$src, $dst|$dst, $src}",
                 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))]>, TB;
def BSF32rm  : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
                 "bsf{l}\t{$src, $dst|$dst, $src}",
                 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))]>, TB;
def BSF64rr  : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
                  "bsf{q}\t{$src, $dst|$dst, $src}",
                  [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))]>, TB;
def BSF64rm  : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
                  "bsf{q}\t{$src, $dst|$dst, $src}",
                  [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))]>, TB;
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def BSR16rr  : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
                 "bsr{w}\t{$src, $dst|$dst, $src}",
                 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))]>, TB, OpSize;
def BSR16rm  : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
                 "bsr{w}\t{$src, $dst|$dst, $src}",
                 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))]>, TB,
                 OpSize;
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def BSR32rr  : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
                 "bsr{l}\t{$src, $dst|$dst, $src}",
                 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))]>, TB;
def BSR32rm  : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
                 "bsr{l}\t{$src, $dst|$dst, $src}",
                 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))]>, TB;
def BSR64rr  : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
                  "bsr{q}\t{$src, $dst|$dst, $src}",
                  [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))]>, TB;
def BSR64rm  : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
                  "bsr{q}\t{$src, $dst|$dst, $src}",
                  [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))]>, TB;
} // Defs = [EFLAGS]

// These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
def MOVSB : I<0xA4, RawFrm, (outs), (ins), "movsb", []>;
def MOVSW : I<0xA5, RawFrm, (outs), (ins), "movsw", []>, OpSize;
def MOVSD : I<0xA5, RawFrm, (outs), (ins), "movs{l|d}", []>;
def MOVSQ : RI<0xA5, RawFrm, (outs), (ins), "movsq", []>;
}

// These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
def STOSB : I<0xAA, RawFrm, (outs), (ins), "stosb", []>;
let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
def STOSW : I<0xAB, RawFrm, (outs), (ins), "stosw", []>, OpSize;
let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
def STOSD : I<0xAB, RawFrm, (outs), (ins), "stos{l|d}", []>;
let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
def STOSQ : RI<0xAB, RawFrm, (outs), (ins), "stosq", []>;
def SCAS8 : I<0xAE, RawFrm, (outs), (ins), "scasb", []>;
def SCAS16 : I<0xAF, RawFrm, (outs), (ins), "scasw", []>, OpSize;
def SCAS32 : I<0xAF, RawFrm, (outs), (ins), "scas{l|d}", []>;
def SCAS64 : RI<0xAF, RawFrm, (outs), (ins), "scasq", []>;
def CMPS8 : I<0xA6, RawFrm, (outs), (ins), "cmpsb", []>;
def CMPS16 : I<0xA7, RawFrm, (outs), (ins), "cmpsw", []>, OpSize;
def CMPS32 : I<0xA7, RawFrm, (outs), (ins), "cmps{l|d}", []>;
def CMPS64 : RI<0xA7, RawFrm, (outs), (ins), "cmpsq", []>;
//===----------------------------------------------------------------------===//
def MOV8rr  : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
                "mov{b}\t{$src, $dst|$dst, $src}", []>;
def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
                "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
                "mov{l}\t{$src, $dst|$dst, $src}", []>;
def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
                 "mov{q}\t{$src, $dst|$dst, $src}", []>;
let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
def MOV8ri  : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
                   "mov{b}\t{$src, $dst|$dst, $src}",
def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
                   "mov{w}\t{$src, $dst|$dst, $src}",
def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
                   "mov{l}\t{$src, $dst|$dst, $src}",
def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
                    "movabs{q}\t{$src, $dst|$dst, $src}",
                    [(set GR64:$dst, imm:$src)]>;
def MOV64ri32 : RIi32<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
                      "mov{q}\t{$src, $dst|$dst, $src}",
                      [(set GR64:$dst, i64immSExt32:$src)]>;
def MOV8mi  : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
                   "mov{b}\t{$src, $dst|$dst, $src}",
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                   [(store (i8 imm:$src), addr:$dst)]>;
def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
                   "mov{w}\t{$src, $dst|$dst, $src}",
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                   [(store (i16 imm:$src), addr:$dst)]>, OpSize;
def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
                   "mov{l}\t{$src, $dst|$dst, $src}",
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                   [(store (i32 imm:$src), addr:$dst)]>;
def MOV64mi32 : RIi32<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
                      "mov{q}\t{$src, $dst|$dst, $src}",
                      [(store i64immSExt32:$src, addr:$dst)]>;
/// moffs8, moffs16 and moffs32 versions of moves.  The immediate is a
/// 32-bit offset from the PC.  These are only valid in x86-32 mode.
def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
                      "mov{w}\t{$src, %ax|AL, $src}", []>, OpSize,
def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
                      "mov{w}\t{%ax, $dst|$dst, AL}", []>, OpSize,
def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
// FIXME: These definitions are utterly broken
// Just leave them commented out for now because they're useless outside
// of the large code model, and most compilers won't generate the instructions
// in question.
/*
def MOV64o8a : RIi8<0xA0, RawFrm, (outs), (ins offset8:$src),
def MOV64o64a : RIi32<0xA1, RawFrm, (outs), (ins offset64:$src),
def MOV64ao8 : RIi8<0xA2, RawFrm, (outs offset8:$dst), (ins),
def MOV64ao64 : RIi32<0xA3, RawFrm, (outs offset64:$dst), (ins),
def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
                   "mov{b}\t{$src, $dst|$dst, $src}", []>;
def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
                    "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
                    "mov{l}\t{$src, $dst|$dst, $src}", []>;
def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
                     "mov{q}\t{$src, $dst|$dst, $src}", []>;
let canFoldAsLoad = 1, isReMaterializable = 1 in {
def MOV8rm  : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
                "mov{b}\t{$src, $dst|$dst, $src}",
                [(set GR8:$dst, (loadi8 addr:$src))]>;
def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
                "mov{w}\t{$src, $dst|$dst, $src}",
                [(set GR16:$dst, (loadi16 addr:$src))]>, OpSize;
def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
                "mov{l}\t{$src, $dst|$dst, $src}",
                [(set GR32:$dst, (loadi32 addr:$src))]>;
def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
                 "mov{q}\t{$src, $dst|$dst, $src}",
                 [(set GR64:$dst, (load addr:$src))]>;
def MOV8mr  : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
                "mov{b}\t{$src, $dst|$dst, $src}",
def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
                "mov{w}\t{$src, $dst|$dst, $src}",
def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
                "mov{l}\t{$src, $dst|$dst, $src}",
def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
                 "mov{q}\t{$src, $dst|$dst, $src}",
                 [(store GR64:$src, addr:$dst)]>;
// Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
// that they can be used for copying and storing h registers, which can't be
// encoded when a REX prefix is present.
let neverHasSideEffects = 1 in
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def MOV8rr_NOREX : I<0x88, MRMDestReg,
                     (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
                     "mov{b}\t{$src, $dst|$dst, $src}  # NOREX", []>;
def MOV8mr_NOREX : I<0x88, MRMDestMem,
                     (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
                     "mov{b}\t{$src, $dst|$dst, $src}  # NOREX", []>;
let mayLoad = 1, neverHasSideEffects = 1,
    canFoldAsLoad = 1, isReMaterializable = 1 in
def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
                     (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
                     "mov{b}\t{$src, $dst|$dst, $src}  # NOREX", []>;
// Condition code ops, incl. set if equal/not equal/...
let Defs = [EFLAGS], Uses = [AH], neverHasSideEffects = 1 in
def SAHF     : I<0x9E, RawFrm, (outs),  (ins), "sahf", []>;  // flags = AH
let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
def LAHF     : I<0x9F, RawFrm, (outs),  (ins), "lahf", []>;  // AH = flags
//===----------------------------------------------------------------------===//
// Bit tests instructions: BT, BTS, BTR, BTC.
def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
               "bt{w}\t{$src2, $src1|$src1, $src2}",
               [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))]>, OpSize, TB;
def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
               "bt{l}\t{$src2, $src1|$src1, $src2}",
               [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))]>, TB;
def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
               "bt{q}\t{$src2, $src1|$src1, $src2}",
               [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))]>, TB;

// Unlike with the register+register form, the memory+register form of the
// bt instruction does not ignore the high bits of the index. From ISel's