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📁 ..
📁 AsmParser
📁 Disassembler
📄 ImmutableGraph.h(15.15 KB)
📁 MCTargetDesc
📁 TargetInfo
📄 X86.h(7.41 KB)
📄 X86.td(68.44 KB)
📄 X86AsmPrinter.cpp(27.18 KB)
📄 X86AsmPrinter.h(5.96 KB)
📄 X86AvoidStoreForwardingBlocks.cpp(27.94 KB)
📄 X86AvoidTrailingCall.cpp(4.91 KB)
📄 X86CallFrameOptimization.cpp(23.07 KB)
📄 X86CallLowering.cpp(17.62 KB)
📄 X86CallLowering.h(1.74 KB)
📄 X86CallingConv.cpp(13.34 KB)
📄 X86CallingConv.h(1.09 KB)
📄 X86CallingConv.td(46.15 KB)
📄 X86CmovConversion.cpp(34.07 KB)
📄 X86CondBrFolding.cpp(18.4 KB)
📄 X86DiscriminateMemOps.cpp(7.11 KB)
📄 X86DomainReassignment.cpp(25.87 KB)
📄 X86EvexToVex.cpp(8.8 KB)
📄 X86ExpandPseudo.cpp(16.95 KB)
📄 X86FastISel.cpp(139.28 KB)
📄 X86FixupBWInsts.cpp(18.09 KB)
📄 X86FixupLEAs.cpp(24.44 KB)
📄 X86FixupSetCC.cpp(4.44 KB)
📄 X86FlagsCopyLowering.cpp(40.36 KB)
📄 X86FloatingPoint.cpp(62.66 KB)
📄 X86FrameLowering.cpp(138.71 KB)
📄 X86FrameLowering.h(11.64 KB)
📄 X86GenRegisterBankInfo.def(3.32 KB)
📄 X86ISelDAGToDAG.cpp(208.37 KB)
📄 X86ISelLowering.cpp(1.94 MB)
📄 X86ISelLowering.h(60.88 KB)
📄 X86IndirectBranchTracking.cpp(6.17 KB)
📄 X86IndirectThunks.cpp(9.78 KB)
📄 X86InsertPrefetch.cpp(9.64 KB)
📄 X86InsertWait.cpp(4.47 KB)
📄 X86Instr3DNow.td(5.24 KB)
📄 X86InstrAMX.td(5.6 KB)
📄 X86InstrAVX512.td(653.76 KB)
📄 X86InstrArithmetic.td(75.61 KB)
📄 X86InstrBuilder.h(8.45 KB)
📄 X86InstrCMovSetCC.td(5.76 KB)
📄 X86InstrCompiler.td(95.78 KB)
📄 X86InstrControl.td(20.53 KB)
📄 X86InstrExtension.td(11.64 KB)
📄 X86InstrFMA.td(33.23 KB)
📄 X86InstrFMA3Info.cpp(6.21 KB)
📄 X86InstrFMA3Info.h(3.25 KB)
📄 X86InstrFPStack.td(39.52 KB)
📄 X86InstrFoldTables.cpp(393.01 KB)
📄 X86InstrFoldTables.h(3.03 KB)
📄 X86InstrFormats.td(41.05 KB)
📄 X86InstrFragmentsSIMD.td(61.14 KB)
📄 X86InstrInfo.cpp(322.72 KB)
📄 X86InstrInfo.h(29.34 KB)
📄 X86InstrInfo.td(169.76 KB)
📄 X86InstrMMX.td(29.55 KB)
📄 X86InstrMPX.td(3.63 KB)
📄 X86InstrSGX.td(1.12 KB)
📄 X86InstrSSE.td(385.01 KB)
📄 X86InstrSVM.td(2.16 KB)
📄 X86InstrShiftRotate.td(49.56 KB)
📄 X86InstrSystem.td(34.03 KB)
📄 X86InstrTSX.td(2.1 KB)
📄 X86InstrVMX.td(3.53 KB)
📄 X86InstrVecCompiler.td(21.09 KB)
📄 X86InstrXOP.td(23.81 KB)
📄 X86InstructionSelector.cpp(61.11 KB)
📄 X86InterleavedAccess.cpp(32.7 KB)
📄 X86IntrinsicsInfo.h(73.96 KB)
📄 X86LegalizerInfo.cpp(15.6 KB)
📄 X86LegalizerInfo.h(1.65 KB)
📄 X86LoadValueInjectionLoadHardening.cpp(32.4 KB)
📄 X86LoadValueInjectionRetHardening.cpp(4.93 KB)
📄 X86MCInstLower.cpp(96.53 KB)
📄 X86MachineFunctionInfo.cpp(1.1 KB)
📄 X86MachineFunctionInfo.h(8.87 KB)
📄 X86MacroFusion.cpp(2.62 KB)
📄 X86MacroFusion.h(992 B)
📄 X86OptimizeLEAs.cpp(27.47 KB)
📄 X86PadShortFunction.cpp(7.33 KB)
📄 X86PartialReduction.cpp(15.46 KB)
📄 X86PfmCounters.td(10.18 KB)
📄 X86RegisterBankInfo.cpp(10.55 KB)
📄 X86RegisterBankInfo.h(2.87 KB)
📄 X86RegisterBanks.td(629 B)
📄 X86RegisterInfo.cpp(29 KB)
📄 X86RegisterInfo.h(5.61 KB)
📄 X86RegisterInfo.td(26.07 KB)
📄 X86SchedBroadwell.td(69.45 KB)
📄 X86SchedHaswell.td(73.96 KB)
📄 X86SchedPredicates.td(4.23 KB)
📄 X86SchedSandyBridge.td(50 KB)
📄 X86SchedSkylakeClient.td(74.65 KB)
📄 X86SchedSkylakeServer.td(113.85 KB)
📄 X86Schedule.td(36.9 KB)
📄 X86ScheduleAtom.td(38.26 KB)
📄 X86ScheduleBdVer2.td(56.78 KB)
📄 X86ScheduleBtVer2.td(46.98 KB)
📄 X86ScheduleSLM.td(22.91 KB)
📄 X86ScheduleZnver1.td(48.97 KB)
📄 X86ScheduleZnver2.td(48.12 KB)
📄 X86SelectionDAGInfo.cpp(12.02 KB)
📄 X86SelectionDAGInfo.h(1.8 KB)
📄 X86ShuffleDecodeConstantPool.cpp(11.22 KB)
📄 X86ShuffleDecodeConstantPool.h(2.13 KB)
📄 X86SpeculativeExecutionSideEffectSuppression.cpp(6.97 KB)
📄 X86SpeculativeLoadHardening.cpp(93.16 KB)
📄 X86Subtarget.cpp(13.25 KB)
📄 X86Subtarget.h(32.08 KB)
📄 X86TargetMachine.cpp(18.88 KB)
📄 X86TargetMachine.h(2.04 KB)
📄 X86TargetObjectFile.cpp(2.61 KB)
📄 X86TargetObjectFile.h(2.13 KB)
📄 X86TargetTransformInfo.cpp(189.14 KB)
📄 X86TargetTransformInfo.h(9.63 KB)
📄 X86VZeroUpper.cpp(12.59 KB)
📄 X86WinAllocaExpander.cpp(9.54 KB)
📄 X86WinEHState.cpp(28.97 KB)

Editing: X86InstrControl.td

//===-- X86InstrControl.td - Control Flow Instructions -----*- tablegen -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file describes the X86 jump, return, call, and related instructions.
//
//===----------------------------------------------------------------------===//

//===----------------------------------------------------------------------===//
//  Control Flow Instructions.
//

// Return instructions.
//
// The X86retflag return instructions are variadic because we may add ST0 and
// ST1 arguments when returning values on the x87 stack.
let isTerminator = 1, isReturn = 1, isBarrier = 1,
    hasCtrlDep = 1, FPForm = SpecialFP, SchedRW = [WriteJumpLd] in {
  def RETL   : I   <0xC3, RawFrm, (outs), (ins variable_ops),
                    "ret{l}", []>, OpSize32, Requires<[Not64BitMode]>;
  def RETQ   : I   <0xC3, RawFrm, (outs), (ins variable_ops),
                    "ret{q}", []>, OpSize32, Requires<[In64BitMode]>;
  def RETW   : I   <0xC3, RawFrm, (outs), (ins),
                    "ret{w}", []>, OpSize16;
  def RETIL  : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt, variable_ops),
                    "ret{l}\t$amt", []>, OpSize32, Requires<[Not64BitMode]>;
  def RETIQ  : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt, variable_ops),
                    "ret{q}\t$amt", []>, OpSize32, Requires<[In64BitMode]>;
  def RETIW  : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt),
                    "ret{w}\t$amt", []>, OpSize16;
  def LRETL  : I   <0xCB, RawFrm, (outs), (ins),
                    "{l}ret{l|f}", []>, OpSize32;
  def LRETQ  : RI  <0xCB, RawFrm, (outs), (ins),
                    "{l}ret{|f}q", []>, Requires<[In64BitMode]>;
  def LRETW  : I   <0xCB, RawFrm, (outs), (ins),
                    "{l}ret{w|f}", []>, OpSize16;
  def LRETIL : Ii16<0xCA, RawFrm, (outs), (ins i16imm:$amt),
                    "{l}ret{l|f}\t$amt", []>, OpSize32;
  def LRETIQ : RIi16<0xCA, RawFrm, (outs), (ins i16imm:$amt),
                    "{l}ret{|f}q\t$amt", []>, Requires<[In64BitMode]>;
  def LRETIW : Ii16<0xCA, RawFrm, (outs), (ins i16imm:$amt),
                    "{l}ret{w|f}\t$amt", []>, OpSize16;

// The machine return from interrupt instruction, but sometimes we need to
  // perform a post-epilogue stack adjustment. Codegen emits the pseudo form
  // which expands to include an SP adjustment if necessary.
  def IRET16 : I   <0xcf, RawFrm, (outs), (ins), "iret{w}", []>,
               OpSize16;
  def IRET32 : I   <0xcf, RawFrm, (outs), (ins), "iret{l|d}", []>, OpSize32;
  def IRET64 : RI  <0xcf, RawFrm, (outs), (ins), "iretq", []>, Requires<[In64BitMode]>;
  let isCodeGenOnly = 1 in
  def IRET : PseudoI<(outs), (ins i32imm:$adj), [(X86iret timm:$adj)]>;
  def RET  : PseudoI<(outs), (ins i32imm:$adj, variable_ops), [(X86retflag timm:$adj)]>;
}

// Unconditional branches.
let isBarrier = 1, isBranch = 1, isTerminator = 1, SchedRW = [WriteJump] in {
  def JMP_1 : Ii8PCRel<0xEB, RawFrm, (outs), (ins brtarget8:$dst),
                       "jmp\t$dst", [(br bb:$dst)]>;
  let hasSideEffects = 0, isCodeGenOnly = 1, ForceDisassemble = 1 in {
    def JMP_2 : Ii16PCRel<0xE9, RawFrm, (outs), (ins brtarget16:$dst),
                          "jmp\t$dst", []>, OpSize16;
    def JMP_4 : Ii32PCRel<0xE9, RawFrm, (outs), (ins brtarget32:$dst),
                          "jmp\t$dst", []>, OpSize32;
  }
}

// Conditional Branches.
let isBranch = 1, isTerminator = 1, Uses = [EFLAGS], SchedRW = [WriteJump],
    isCodeGenOnly = 1, ForceDisassemble = 1 in {
  def JCC_1 : Ii8PCRel <0x70, AddCCFrm, (outs),
                        (ins brtarget8:$dst, ccode:$cond),
                        "j${cond}\t$dst",
                        [(X86brcond bb:$dst, timm:$cond, EFLAGS)]>;
  let hasSideEffects = 0 in {
    def JCC_2 : Ii16PCRel<0x80, AddCCFrm, (outs),
                          (ins brtarget16:$dst, ccode:$cond),
                          "j${cond}\t$dst",
                          []>, OpSize16, TB;
    def JCC_4 : Ii32PCRel<0x80, AddCCFrm, (outs),
                          (ins brtarget32:$dst, ccode:$cond),
                          "j${cond}\t$dst",
                          []>, TB, OpSize32;
  }
}

def : InstAlias<"jo\t$dst",  (JCC_1 brtarget8:$dst,  0), 0>;
def : InstAlias<"jno\t$dst", (JCC_1 brtarget8:$dst,  1), 0>;
def : InstAlias<"jb\t$dst",  (JCC_1 brtarget8:$dst,  2), 0>;
def : InstAlias<"jae\t$dst", (JCC_1 brtarget8:$dst,  3), 0>;
def : InstAlias<"je\t$dst",  (JCC_1 brtarget8:$dst,  4), 0>;
def : InstAlias<"jne\t$dst", (JCC_1 brtarget8:$dst,  5), 0>;
def : InstAlias<"jbe\t$dst", (JCC_1 brtarget8:$dst,  6), 0>;
def : InstAlias<"ja\t$dst",  (JCC_1 brtarget8:$dst,  7), 0>;
def : InstAlias<"js\t$dst",  (JCC_1 brtarget8:$dst,  8), 0>;
def : InstAlias<"jns\t$dst", (JCC_1 brtarget8:$dst,  9), 0>;
def : InstAlias<"jp\t$dst",  (JCC_1 brtarget8:$dst, 10), 0>;
def : InstAlias<"jnp\t$dst", (JCC_1 brtarget8:$dst, 11), 0>;
def : InstAlias<"jl\t$dst",  (JCC_1 brtarget8:$dst, 12), 0>;
def : InstAlias<"jge\t$dst", (JCC_1 brtarget8:$dst, 13), 0>;
def : InstAlias<"jle\t$dst", (JCC_1 brtarget8:$dst, 14), 0>;
def : InstAlias<"jg\t$dst",  (JCC_1 brtarget8:$dst, 15), 0>;

// jcx/jecx/jrcx instructions.
let isBranch = 1, isTerminator = 1, hasSideEffects = 0, SchedRW = [WriteJump] in {
  // These are the 32-bit versions of this instruction for the asmparser.  In
  // 32-bit mode, the address size prefix is jcxz and the unprefixed version is
  // jecxz.
  let Uses = [CX] in
    def JCXZ : Ii8PCRel<0xE3, RawFrm, (outs), (ins brtarget8:$dst),
                        "jcxz\t$dst", []>, AdSize16, Requires<[Not64BitMode]>;
  let Uses = [ECX] in
    def JECXZ : Ii8PCRel<0xE3, RawFrm, (outs), (ins brtarget8:$dst),
                        "jecxz\t$dst", []>, AdSize32;

let Uses = [RCX] in
    def JRCXZ : Ii8PCRel<0xE3, RawFrm, (outs), (ins brtarget8:$dst),
                         "jrcxz\t$dst", []>, AdSize64, Requires<[In64BitMode]>;
}

// Indirect branches
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
  def JMP16r     : I<0xFF, MRM4r, (outs), (ins GR16:$dst), "jmp{w}\t{*}$dst",
                     [(brind GR16:$dst)]>, Requires<[Not64BitMode]>,
                     OpSize16, Sched<[WriteJump]>;
  def JMP16m     : I<0xFF, MRM4m, (outs), (ins i16mem:$dst), "jmp{w}\t{*}$dst",
                     [(brind (loadi16 addr:$dst))]>, Requires<[Not64BitMode]>,
                     OpSize16, Sched<[WriteJumpLd]>;

def JMP32r     : I<0xFF, MRM4r, (outs), (ins GR32:$dst), "jmp{l}\t{*}$dst",
                     [(brind GR32:$dst)]>, Requires<[Not64BitMode]>,
                     OpSize32, Sched<[WriteJump]>;
  def JMP32m     : I<0xFF, MRM4m, (outs), (ins i32mem:$dst), "jmp{l}\t{*}$dst",
                     [(brind (loadi32 addr:$dst))]>, Requires<[Not64BitMode]>,
                     OpSize32, Sched<[WriteJumpLd]>;

def JMP64r     : I<0xFF, MRM4r, (outs), (ins GR64:$dst), "jmp{q}\t{*}$dst",
                     [(brind GR64:$dst)]>, Requires<[In64BitMode]>,
                     Sched<[WriteJump]>;
  def JMP64m     : I<0xFF, MRM4m, (outs), (ins i64mem:$dst), "jmp{q}\t{*}$dst",
                     [(brind (loadi64 addr:$dst))]>, Requires<[In64BitMode]>,
                     Sched<[WriteJumpLd]>;

// Win64 wants indirect jumps leaving the function to have a REX_W prefix.
  // These are switched from TAILJMPr/m64_REX in MCInstLower.
  let isCodeGenOnly = 1, hasREX_WPrefix = 1 in {
    def JMP64r_REX : I<0xFF, MRM4r, (outs), (ins GR64:$dst),
                       "rex64 jmp{q}\t{*}$dst", []>, Sched<[WriteJump]>;
    let mayLoad = 1 in
    def JMP64m_REX : I<0xFF, MRM4m, (outs), (ins i64mem:$dst),
                       "rex64 jmp{q}\t{*}$dst", []>, Sched<[WriteJumpLd]>;

}

// Non-tracking jumps for IBT, use with caution.
  let isCodeGenOnly = 1 in {
    def JMP16r_NT : I<0xFF, MRM4r, (outs), (ins GR16 : $dst), "jmp{w}\t{*}$dst",
                      [(X86NoTrackBrind GR16 : $dst)]>, Requires<[Not64BitMode]>,
                      OpSize16, Sched<[WriteJump]>, NOTRACK;

def JMP16m_NT : I<0xFF, MRM4m, (outs), (ins i16mem : $dst), "jmp{w}\t{*}$dst",
                      [(X86NoTrackBrind (loadi16 addr : $dst))]>,
                      Requires<[Not64BitMode]>, OpSize16, Sched<[WriteJumpLd]>,
                      NOTRACK;

def JMP32r_NT : I<0xFF, MRM4r, (outs), (ins GR32 : $dst), "jmp{l}\t{*}$dst",
                      [(X86NoTrackBrind GR32 : $dst)]>, Requires<[Not64BitMode]>,
                      OpSize32, Sched<[WriteJump]>, NOTRACK;
    def JMP32m_NT : I<0xFF, MRM4m, (outs), (ins i32mem : $dst), "jmp{l}\t{*}$dst",
                      [(X86NoTrackBrind (loadi32 addr : $dst))]>,
                      Requires<[Not64BitMode]>, OpSize32, Sched<[WriteJumpLd]>,
                      NOTRACK;

def JMP64r_NT : I<0xFF, MRM4r, (outs), (ins GR64 : $dst), "jmp{q}\t{*}$dst",
                      [(X86NoTrackBrind GR64 : $dst)]>, Requires<[In64BitMode]>,
                      Sched<[WriteJump]>, NOTRACK;
    def JMP64m_NT : I<0xFF, MRM4m, (outs), (ins i64mem : $dst), "jmp{q}\t{*}$dst",
                      [(X86NoTrackBrind(loadi64 addr : $dst))]>,
                      Requires<[In64BitMode]>, Sched<[WriteJumpLd]>, NOTRACK;
  }

let AsmVariantName = "att" in
    def FARJMP16m  : I<0xFF, MRM5m, (outs), (ins opaquemem:$dst),
                       "ljmp{w}\t{*}$dst", []>, OpSize16, Sched<[WriteJumpLd]>;
    def FARJMP32m  : I<0xFF, MRM5m, (outs), (ins opaquemem:$dst),
                       "{l}jmp{l}\t{*}$dst", []>, OpSize32, Sched<[WriteJumpLd]>;
  }
}

// Loop instructions
let SchedRW = [WriteJump] in {
def LOOP   : Ii8PCRel<0xE2, RawFrm, (outs), (ins brtarget8:$dst), "loop\t$dst", []>;
def LOOPE  : Ii8PCRel<0xE1, RawFrm, (outs), (ins brtarget8:$dst), "loope\t$dst", []>;
def LOOPNE : Ii8PCRel<0xE0, RawFrm, (outs), (ins brtarget8:$dst), "loopne\t$dst", []>;
}

//===----------------------------------------------------------------------===//
//  Call Instructions...
//
let isCall = 1 in
  // All calls clobber the non-callee saved registers. ESP is marked as
  // a use to prevent stack-pointer assignments that appear immediately
  // before calls from potentially appearing dead. Uses for argument
  // registers are added manually.
  let Uses = [ESP, SSP] in {
    def CALLpcrel32 : Ii32PCRel<0xE8, RawFrm,
                           (outs), (ins i32imm_brtarget:$dst),
                           "call{l}\t$dst", []>, OpSize32,
                      Requires<[Not64BitMode]>, Sched<[WriteJump]>;
    let hasSideEffects = 0 in
      def CALLpcrel16 : Ii16PCRel<0xE8, RawFrm,
                             (outs), (ins i16imm_brtarget:$dst),
                             "call{w}\t$dst", []>, OpSize16,
                        Sched<[WriteJump]>;
    def CALL16r     : I<0xFF, MRM2r, (outs), (ins GR16:$dst),
                        "call{w}\t{*}$dst", [(X86call GR16:$dst)]>,
                      OpSize16, Requires<[Not64BitMode]>, Sched<[WriteJump]>;
    def CALL16m     : I<0xFF, MRM2m, (outs), (ins i16mem:$dst),
                        "call{w}\t{*}$dst", [(X86call (loadi16 addr:$dst))]>,
                        OpSize16, Requires<[Not64BitMode,FavorMemIndirectCall]>,
                        Sched<[WriteJumpLd]>;
    def CALL32r     : I<0xFF, MRM2r, (outs), (ins GR32:$dst),
                        "call{l}\t{*}$dst", [(X86call GR32:$dst)]>, OpSize32,
                        Requires<[Not64BitMode,NotUseIndirectThunkCalls]>,
                        Sched<[WriteJump]>;
    def CALL32m     : I<0xFF, MRM2m, (outs), (ins i32mem:$dst),
                        "call{l}\t{*}$dst", [(X86call (loadi32 addr:$dst))]>,
                        OpSize32,
                        Requires<[Not64BitMode,FavorMemIndirectCall,
                                  NotUseIndirectThunkCalls]>,
                        Sched<[WriteJumpLd]>;

// Non-tracking calls for IBT, use with caution.
    let isCodeGenOnly = 1 in {
      def CALL16r_NT : I<0xFF, MRM2r, (outs), (ins GR16 : $dst),
                        "call{w}\t{*}$dst",[(X86NoTrackCall GR16 : $dst)]>,
                        OpSize16, Requires<[Not64BitMode]>, Sched<[WriteJump]>, NOTRACK;
      def CALL16m_NT : I<0xFF, MRM2m, (outs), (ins i16mem : $dst),
                        "call{w}\t{*}$dst",[(X86NoTrackCall(loadi16 addr : $dst))]>,
                        OpSize16, Requires<[Not64BitMode,FavorMemIndirectCall]>,
                        Sched<[WriteJumpLd]>, NOTRACK;
      def CALL32r_NT : I<0xFF, MRM2r, (outs), (ins GR32 : $dst),
                        "call{l}\t{*}$dst",[(X86NoTrackCall GR32 : $dst)]>,
                        OpSize32, Requires<[Not64BitMode]>, Sched<[WriteJump]>, NOTRACK;
      def CALL32m_NT : I<0xFF, MRM2m, (outs), (ins i32mem : $dst),
                        "call{l}\t{*}$dst",[(X86NoTrackCall(loadi32 addr : $dst))]>,
                        OpSize32, Requires<[Not64BitMode,FavorMemIndirectCall]>,
                        Sched<[WriteJumpLd]>, NOTRACK;
    }

let Predicates = [Not64BitMode], AsmVariantName = "att" in {
      def FARCALL16i  : Iseg16<0x9A, RawFrmImm16, (outs),
                               (ins i16imm:$off, i16imm:$seg),
                               "lcall{w}\t$seg, $off", []>,
                               OpSize16, Sched<[WriteJump]>;
      def FARCALL32i  : Iseg32<0x9A, RawFrmImm16, (outs),
                               (ins i32imm:$off, i16imm:$seg),
                               "lcall{l}\t$seg, $off", []>,
                               OpSize32, Sched<[WriteJump]>;
    }

let mayLoad = 1 in {
      def FARCALL16m  : I<0xFF, MRM3m, (outs), (ins opaquemem:$dst),
                          "lcall{w}\t{*}$dst", []>, OpSize16, Sched<[WriteJumpLd]>;
      def FARCALL32m  : I<0xFF, MRM3m, (outs), (ins opaquemem:$dst),
                          "{l}call{l}\t{*}$dst", []>, OpSize32, Sched<[WriteJumpLd]>;
    }
  }

// Tail call stuff.
let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1,
    isCodeGenOnly = 1, Uses = [ESP, SSP] in {
  def TCRETURNdi : PseudoI<(outs), (ins i32imm_brtarget:$dst, i32imm:$offset),
                           []>, Sched<[WriteJump]>, NotMemoryFoldable;
  def TCRETURNri : PseudoI<(outs), (ins ptr_rc_tailcall:$dst, i32imm:$offset),
                           []>, Sched<[WriteJump]>, NotMemoryFoldable;
  let mayLoad = 1 in
  def TCRETURNmi : PseudoI<(outs), (ins i32mem_TC:$dst, i32imm:$offset),
                           []>, Sched<[WriteJumpLd]>;

def TAILJMPd : PseudoI<(outs), (ins i32imm_brtarget:$dst),
                         []>, Sched<[WriteJump]>;

def TAILJMPr : PseudoI<(outs), (ins ptr_rc_tailcall:$dst),
                         []>, Sched<[WriteJump]>;
  let mayLoad = 1 in
  def TAILJMPm : PseudoI<(outs), (ins i32mem_TC:$dst),
                         []>, Sched<[WriteJumpLd]>;
}

// Conditional tail calls are similar to the above, but they are branches
// rather than barriers, and they use EFLAGS.
let isCall = 1, isTerminator = 1, isReturn = 1, isBranch = 1,
    isCodeGenOnly = 1, SchedRW = [WriteJump] in
  let Uses = [ESP, EFLAGS, SSP] in {
  def TCRETURNdicc : PseudoI<(outs),
                     (ins i32imm_brtarget:$dst, i32imm:$offset, i32imm:$cond),
                     []>;

// This gets substituted to a conditional jump instruction in MC lowering.
  def TAILJMPd_CC : PseudoI<(outs), (ins i32imm_brtarget:$dst, i32imm:$cond), []>;
}

//===----------------------------------------------------------------------===//
//  Call Instructions...
//

// RSP is marked as a use to prevent stack-pointer assignments that appear
// immediately before calls from potentially appearing dead. Uses for argument
// registers are added manually.
let isCall = 1, Uses = [RSP, SSP], SchedRW = [WriteJump] in {
  // NOTE: this pattern doesn't match "X86call imm", because we do not know
  // that the offset between an arbitrary immediate and the call will fit in
  // the 32-bit pcrel field that we have.
  def CALL64pcrel32 : Ii32PCRel<0xE8, RawFrm,
                        (outs), (ins i64i32imm_brtarget:$dst),
                        "call{q}\t$dst", []>, OpSize32,
                      Requires<[In64BitMode]>;
  def CALL64r       : I<0xFF, MRM2r, (outs), (ins GR64:$dst),
                        "call{q}\t{*}$dst", [(X86call GR64:$dst)]>,
                      Requires<[In64BitMode,NotUseIndirectThunkCalls]>;
  def CALL64m       : I<0xFF, MRM2m, (outs), (ins i64mem:$dst),
                        "call{q}\t{*}$dst", [(X86call (loadi64 addr:$dst))]>,
                      Requires<[In64BitMode,FavorMemIndirectCall,
                                NotUseIndirectThunkCalls]>;

// Non-tracking calls for IBT, use with caution.
  let isCodeGenOnly = 1 in {
    def CALL64r_NT : I<0xFF, MRM2r, (outs), (ins GR64 : $dst),
                      "call{q}\t{*}$dst",[(X86NoTrackCall GR64 : $dst)]>,
                      Requires<[In64BitMode]>, NOTRACK;
    def CALL64m_NT : I<0xFF, MRM2m, (outs), (ins i64mem : $dst),
                       "call{q}\t{*}$dst",
                       [(X86NoTrackCall(loadi64 addr : $dst))]>,
                       Requires<[In64BitMode,FavorMemIndirectCall]>, NOTRACK;
  }

let mayLoad = 1 in
  def FARCALL64m  : RI<0xFF, MRM3m, (outs), (ins opaquemem:$dst),
                       "lcall{q}\t{*}$dst", []>;
}

let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1,
    isCodeGenOnly = 1, Uses = [RSP, SSP] in {
  def TCRETURNdi64   : PseudoI<(outs),
                               (ins i64i32imm_brtarget:$dst, i32imm:$offset),
                               []>, Sched<[WriteJump]>;
  def TCRETURNri64   : PseudoI<(outs),
                               (ins ptr_rc_tailcall:$dst, i32imm:$offset),
                               []>, Sched<[WriteJump]>, NotMemoryFoldable;
  let mayLoad = 1 in
  def TCRETURNmi64   : PseudoI<(outs),
                               (ins i64mem_TC:$dst, i32imm:$offset),
                               []>, Sched<[WriteJumpLd]>, NotMemoryFoldable;

def TAILJMPd64 : PseudoI<(outs), (ins i64i32imm_brtarget:$dst),
                           []>, Sched<[WriteJump]>;

def TAILJMPr64 : PseudoI<(outs), (ins ptr_rc_tailcall:$dst),
                           []>, Sched<[WriteJump]>;

let mayLoad = 1 in
  def TAILJMPm64 : PseudoI<(outs), (ins i64mem_TC:$dst),
                           []>, Sched<[WriteJumpLd]>;

// Win64 wants indirect jumps leaving the function to have a REX_W prefix.
  let hasREX_WPrefix = 1 in {
    def TAILJMPr64_REX : PseudoI<(outs), (ins ptr_rc_tailcall:$dst),
                                 []>, Sched<[WriteJump]>;

let mayLoad = 1 in
    def TAILJMPm64_REX : PseudoI<(outs), (ins i64mem_TC:$dst),
                                 []>, Sched<[WriteJumpLd]>;
  }
}

let isPseudo = 1, isCall = 1, isCodeGenOnly = 1,
    Uses = [RSP, SSP],
    usesCustomInserter = 1,
    SchedRW = [WriteJump] in {
  def INDIRECT_THUNK_CALL32 :
    PseudoI<(outs), (ins GR32:$dst), [(X86call GR32:$dst)]>,
            Requires<[Not64BitMode,UseIndirectThunkCalls]>;

def INDIRECT_THUNK_CALL64 :
    PseudoI<(outs), (ins GR64:$dst), [(X86call GR64:$dst)]>,
            Requires<[In64BitMode,UseIndirectThunkCalls]>;

// Indirect thunk variant of indirect tail calls.
  let isTerminator = 1, isReturn = 1, isBarrier = 1 in {
    def INDIRECT_THUNK_TCRETURN64 :
      PseudoI<(outs), (ins GR64:$dst, i32imm:$offset), []>;
    def INDIRECT_THUNK_TCRETURN32 :
      PseudoI<(outs), (ins GR32:$dst, i32imm:$offset), []>;
  }
}

// Conditional tail calls are similar to the above, but they are branches
// rather than barriers, and they use EFLAGS.
let isCall = 1, isTerminator = 1, isReturn = 1, isBranch = 1,
    isCodeGenOnly = 1, SchedRW = [WriteJump] in
  let Uses = [RSP, EFLAGS, SSP] in {
  def TCRETURNdi64cc : PseudoI<(outs),
                           (ins i64i32imm_brtarget:$dst, i32imm:$offset,
                            i32imm:$cond), []>;

// This gets substituted to a conditional jump instruction in MC lowering.
  def TAILJMPd64_CC : PseudoI<(outs),
                              (ins i64i32imm_brtarget:$dst, i32imm:$cond), []>;
}

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