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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: X86MachineFunctionInfo.h

//===-- X86MachineFunctionInfo.h - X86 machine function info ----*- C++ -*-===//
//
// 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 declares X86-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_X86_X86MACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_X86_X86MACHINEFUNCTIONINFO_H

#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFunction.h"

namespace llvm {

/// X86MachineFunctionInfo - This class is derived from MachineFunction and
/// contains private X86 target-specific information for each MachineFunction.
class X86MachineFunctionInfo : public MachineFunctionInfo {
  virtual void anchor();

/// ForceFramePointer - True if the function is required to use of frame
  /// pointer for reasons other than it containing dynamic allocation or
  /// that FP eliminatation is turned off. For example, Cygwin main function
  /// contains stack pointer re-alignment code which requires FP.
  bool ForceFramePointer = false;

/// RestoreBasePointerOffset - Non-zero if the function has base pointer
  /// and makes call to llvm.eh.sjlj.setjmp. When non-zero, the value is a
  /// displacement from the frame pointer to a slot where the base pointer
  /// is stashed.
  signed char RestoreBasePointerOffset = 0;

/// WinEHXMMSlotInfo - Slot information of XMM registers in the stack frame
  /// in bytes.
  DenseMap<int, unsigned> WinEHXMMSlotInfo;

/// CalleeSavedFrameSize - Size of the callee-saved register portion of the
  /// stack frame in bytes.
  unsigned CalleeSavedFrameSize = 0;

/// BytesToPopOnReturn - Number of bytes function pops on return (in addition
  /// to the space used by the return address).
  /// Used on windows platform for stdcall & fastcall name decoration
  unsigned BytesToPopOnReturn = 0;

/// ReturnAddrIndex - FrameIndex for return slot.
  int ReturnAddrIndex = 0;

/// FrameIndex for return slot.
  int FrameAddrIndex = 0;

/// TailCallReturnAddrDelta - The number of bytes by which return address
  /// stack slot is moved as the result of tail call optimization.
  int TailCallReturnAddrDelta = 0;

/// SRetReturnReg - Some subtargets require that sret lowering includes
  /// returning the value of the returned struct in a register. This field
  /// holds the virtual register into which the sret argument is passed.
  Register SRetReturnReg;

/// GlobalBaseReg - keeps track of the virtual register initialized for
  /// use as the global base register. This is used for PIC in some PIC
  /// relocation models.
  Register GlobalBaseReg;

/// VarArgsFrameIndex - FrameIndex for start of varargs area.
  int VarArgsFrameIndex = 0;
  /// RegSaveFrameIndex - X86-64 vararg func register save area.
  int RegSaveFrameIndex = 0;
  /// VarArgsGPOffset - X86-64 vararg func int reg offset.
  unsigned VarArgsGPOffset = 0;
  /// VarArgsFPOffset - X86-64 vararg func fp reg offset.
  unsigned VarArgsFPOffset = 0;
  /// ArgumentStackSize - The number of bytes on stack consumed by the arguments
  /// being passed on the stack.
  unsigned ArgumentStackSize = 0;
  /// NumLocalDynamics - Number of local-dynamic TLS accesses.
  unsigned NumLocalDynamics = 0;
  /// HasPushSequences - Keeps track of whether this function uses sequences
  /// of pushes to pass function parameters.
  bool HasPushSequences = false;

/// True if the function recovers from an SEH exception, and therefore needs
  /// to spill and restore the frame pointer.
  bool HasSEHFramePtrSave = false;

/// The frame index of a stack object containing the original frame pointer
  /// used to address arguments in a function using a base pointer.
  int SEHFramePtrSaveIndex = 0;

/// True if this function has a subset of CSRs that is handled explicitly via
  /// copies.
  bool IsSplitCSR = false;

/// True if this function uses the red zone.
  bool UsesRedZone = false;

/// True if this function has WIN_ALLOCA instructions.
  bool HasWinAlloca = false;

/// True if this function has any preallocated calls.
  bool HasPreallocatedCall = false;

ValueMap<const Value *, size_t> PreallocatedIds;
  SmallVector<size_t, 0> PreallocatedStackSizes;
  SmallVector<SmallVector<size_t, 4>, 0> PreallocatedArgOffsets;

private:
  /// ForwardedMustTailRegParms - A list of virtual and physical registers
  /// that must be forwarded to every musttail call.
  SmallVector<ForwardedRegister, 1> ForwardedMustTailRegParms;

public:
  X86MachineFunctionInfo() = default;

explicit X86MachineFunctionInfo(MachineFunction &MF) {}

bool getForceFramePointer() const { return ForceFramePointer;}
  void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }

bool getHasPushSequences() const { return HasPushSequences; }
  void setHasPushSequences(bool HasPush) { HasPushSequences = HasPush; }

bool getRestoreBasePointer() const { return RestoreBasePointerOffset!=0; }
  void setRestoreBasePointer(const MachineFunction *MF);
  int getRestoreBasePointerOffset() const {return RestoreBasePointerOffset; }

DenseMap<int, unsigned>& getWinEHXMMSlotInfo() { return WinEHXMMSlotInfo; }
  const DenseMap<int, unsigned>& getWinEHXMMSlotInfo() const {
    return WinEHXMMSlotInfo; }

unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
  void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }

unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; }
  void setBytesToPopOnReturn (unsigned bytes) { BytesToPopOnReturn = bytes;}

int getRAIndex() const { return ReturnAddrIndex; }
  void setRAIndex(int Index) { ReturnAddrIndex = Index; }

int getFAIndex() const { return FrameAddrIndex; }
  void setFAIndex(int Index) { FrameAddrIndex = Index; }

int getTCReturnAddrDelta() const { return TailCallReturnAddrDelta; }
  void setTCReturnAddrDelta(int delta) {TailCallReturnAddrDelta = delta;}

Register getSRetReturnReg() const { return SRetReturnReg; }
  void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; }

Register getGlobalBaseReg() const { return GlobalBaseReg; }
  void setGlobalBaseReg(Register Reg) { GlobalBaseReg = Reg; }

int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
  void setVarArgsFrameIndex(int Idx) { VarArgsFrameIndex = Idx; }

int getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
  void setRegSaveFrameIndex(int Idx) { RegSaveFrameIndex = Idx; }

unsigned getVarArgsGPOffset() const { return VarArgsGPOffset; }
  void setVarArgsGPOffset(unsigned Offset) { VarArgsGPOffset = Offset; }

unsigned getVarArgsFPOffset() const { return VarArgsFPOffset; }
  void setVarArgsFPOffset(unsigned Offset) { VarArgsFPOffset = Offset; }

unsigned getArgumentStackSize() const { return ArgumentStackSize; }
  void setArgumentStackSize(unsigned size) { ArgumentStackSize = size; }

unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
  void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }

bool getHasSEHFramePtrSave() const { return HasSEHFramePtrSave; }
  void setHasSEHFramePtrSave(bool V) { HasSEHFramePtrSave = V; }

int getSEHFramePtrSaveIndex() const { return SEHFramePtrSaveIndex; }
  void setSEHFramePtrSaveIndex(int Index) { SEHFramePtrSaveIndex = Index; }

SmallVectorImpl<ForwardedRegister> &getForwardedMustTailRegParms() {
    return ForwardedMustTailRegParms;
  }

bool isSplitCSR() const { return IsSplitCSR; }
  void setIsSplitCSR(bool s) { IsSplitCSR = s; }

bool getUsesRedZone() const { return UsesRedZone; }
  void setUsesRedZone(bool V) { UsesRedZone = V; }

bool hasWinAlloca() const { return HasWinAlloca; }
  void setHasWinAlloca(bool v) { HasWinAlloca = v; }

bool hasPreallocatedCall() const { return HasPreallocatedCall; }
  void setHasPreallocatedCall(bool v) { HasPreallocatedCall = v; }

size_t getPreallocatedIdForCallSite(const Value *CS) {
    auto Insert = PreallocatedIds.insert({CS, PreallocatedIds.size()});
    if (Insert.second) {
      PreallocatedStackSizes.push_back(0);
      PreallocatedArgOffsets.emplace_back();
    }
    return Insert.first->second;
  }

void setPreallocatedStackSize(size_t Id, size_t StackSize) {
    PreallocatedStackSizes[Id] = StackSize;
  }

size_t getPreallocatedStackSize(const size_t Id) {
    assert(PreallocatedStackSizes[Id] != 0 && "stack size not set");
    return PreallocatedStackSizes[Id];
  }

void setPreallocatedArgOffsets(size_t Id, ArrayRef<size_t> AO) {
    PreallocatedArgOffsets[Id].assign(AO.begin(), AO.end());
  }

const ArrayRef<size_t> getPreallocatedArgOffsets(const size_t Id) {
    assert(!PreallocatedArgOffsets[Id].empty() && "arg offsets not set");
    return PreallocatedArgOffsets[Id];
  }
};

} // End llvm namespace

#endif

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