MCWin64EH.cpp File Reference

#include "llvm/MC/MCWin64EH.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectStreamer.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Win64EH.h"

Include dependency graph for MCWin64EH.cpp:

Go to the source code of this file.

Namespaces
	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Functions
static uint8_t	CountOfUnwindCodes (std::vector< WinEH::Instruction > &Insns)
static void	EmitAbsDifference (MCStreamer &Streamer, const MCSymbol *LHS, const MCSymbol *RHS)
static void	EmitUnwindCode (MCStreamer &streamer, const MCSymbol *begin, WinEH::Instruction &inst)
static void	EmitSymbolRefWithOfs (MCStreamer &streamer, const MCSymbol *Base, int64_t Offset)
static void	EmitSymbolRefWithOfs (MCStreamer &streamer, const MCSymbol *Base, const MCSymbol *Other)
static void	EmitRuntimeFunction (MCStreamer &streamer, const WinEH::FrameInfo *info)
static void	EmitUnwindInfo (MCStreamer &streamer, WinEH::FrameInfo *info)
static const MCExpr *	GetSubDivExpr (MCStreamer &Streamer, const MCSymbol *LHS, const MCSymbol *RHS, int Div)
static std::optional< int64_t >	GetOptionalAbsDifference (MCStreamer &Streamer, const MCSymbol *LHS, const MCSymbol *RHS)
static int64_t	GetAbsDifference (MCStreamer &Streamer, const MCSymbol *LHS, const MCSymbol *RHS)
static void	checkARM64Instructions (MCStreamer &Streamer, ArrayRef< WinEH::Instruction > Insns, const MCSymbol *Begin, const MCSymbol *End, StringRef Name, StringRef Type)
static uint32_t	ARM64CountOfUnwindCodes (ArrayRef< WinEH::Instruction > Insns)
static void	ARM64EmitUnwindCode (MCStreamer &streamer, const WinEH::Instruction &inst)
static MCSymbol *	FindMatchingEpilog (const std::vector< WinEH::Instruction > &EpilogInstrs, const std::vector< MCSymbol * > &Epilogs, const WinEH::FrameInfo *info)
static void	simplifyARM64Opcodes (std::vector< WinEH::Instruction > &Instructions, bool Reverse)
static int	getARM64OffsetInProlog (const std::vector< WinEH::Instruction > &Prolog, const std::vector< WinEH::Instruction > &Epilog)
static int	checkARM64PackedEpilog (MCStreamer &streamer, WinEH::FrameInfo *info, WinEH::FrameInfo::Segment *Seg, int PrologCodeBytes)
static bool	tryARM64PackedUnwind (WinEH::FrameInfo *info, uint32_t FuncLength, int PackedEpilogOffset)
static void	ARM64ProcessEpilogs (WinEH::FrameInfo *info, WinEH::FrameInfo::Segment *Seg, uint32_t &TotalCodeBytes, MapVector< MCSymbol *, uint32_t > &EpilogInfo)
static void	ARM64FindSegmentsInFunction (MCStreamer &streamer, WinEH::FrameInfo *info, int64_t RawFuncLength)
static void	ARM64EmitUnwindInfoForSegment (MCStreamer &streamer, WinEH::FrameInfo *info, WinEH::FrameInfo::Segment &Seg, bool TryPacked=true)
static void	ARM64EmitUnwindInfo (MCStreamer &streamer, WinEH::FrameInfo *info, bool TryPacked=true)
static uint32_t	ARMCountOfUnwindCodes (ArrayRef< WinEH::Instruction > Insns)
static uint32_t	ARMCountOfInstructionBytes (ArrayRef< WinEH::Instruction > Insns, bool *HasCustom=nullptr)
static void	checkARMInstructions (MCStreamer &Streamer, ArrayRef< WinEH::Instruction > Insns, const MCSymbol *Begin, const MCSymbol *End, StringRef Name, StringRef Type)
static bool	isARMTerminator (const WinEH::Instruction &inst)
static void	ARMEmitUnwindCode (MCStreamer &streamer, const WinEH::Instruction &inst)
static int	getARMOffsetInProlog (const std::vector< WinEH::Instruction > &Prolog, const std::vector< WinEH::Instruction > &Epilog, bool CanTweakProlog)
static int	checkARMPackedEpilog (MCStreamer &streamer, WinEH::FrameInfo *info, int PrologCodeBytes)
static bool	parseRegMask (unsigned Mask, bool &HasLR, bool &HasR11, unsigned &Folded, int &IntRegs)
static bool	tryARMPackedUnwind (MCStreamer &streamer, WinEH::FrameInfo *info, uint32_t FuncLength)
static void	ARMEmitUnwindInfo (MCStreamer &streamer, WinEH::FrameInfo *info, bool TryPacked=true)
static void	ARM64EmitRuntimeFunction (MCStreamer &streamer, const WinEH::FrameInfo *info)
static void	ARMEmitRuntimeFunction (MCStreamer &streamer, const WinEH::FrameInfo *info)

Function Documentation

ARM64CountOfUnwindCodes()

static uint32_t ARM64CountOfUnwindCodes ( ArrayRef< WinEH::Instruction >  Insns )

static

Definition at line 339 of file MCWin64EH.cpp.

References I, llvm_unreachable, llvm::Win64EH::UOP_AddFP, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocMedium, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_ClearUnwoundToCall, llvm::Win64EH::UOP_Context, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_PACSignLR, llvm::Win64EH::UOP_PushMachFrame, llvm::Win64EH::UOP_SaveAnyRegD, llvm::Win64EH::UOP_SaveAnyRegDP, llvm::Win64EH::UOP_SaveAnyRegDPX, llvm::Win64EH::UOP_SaveAnyRegDX, llvm::Win64EH::UOP_SaveAnyRegI, llvm::Win64EH::UOP_SaveAnyRegIP, llvm::Win64EH::UOP_SaveAnyRegIPX, llvm::Win64EH::UOP_SaveAnyRegIX, llvm::Win64EH::UOP_SaveAnyRegQ, llvm::Win64EH::UOP_SaveAnyRegQP, llvm::Win64EH::UOP_SaveAnyRegQPX, llvm::Win64EH::UOP_SaveAnyRegQX, llvm::Win64EH::UOP_SaveFPLR, llvm::Win64EH::UOP_SaveFPLRX, llvm::Win64EH::UOP_SaveFReg, llvm::Win64EH::UOP_SaveFRegP, llvm::Win64EH::UOP_SaveFRegPX, llvm::Win64EH::UOP_SaveFRegX, llvm::Win64EH::UOP_SaveLRPair, llvm::Win64EH::UOP_SaveNext, llvm::Win64EH::UOP_SaveR19R20X, llvm::Win64EH::UOP_SaveReg, llvm::Win64EH::UOP_SaveRegP, llvm::Win64EH::UOP_SaveRegPX, llvm::Win64EH::UOP_SaveRegX, llvm::Win64EH::UOP_SetFP, and llvm::Win64EH::UOP_TrapFrame.

Referenced by ARM64EmitUnwindInfo(), ARM64ProcessEpilogs(), checkARM64PackedEpilog(), and getARM64OffsetInProlog().

ARM64EmitRuntimeFunction()

static void ARM64EmitRuntimeFunction ( MCStreamer &  streamer, const WinEH::FrameInfo *  info  )

static

Definition at line 2496 of file MCWin64EH.cpp.

References Align, llvm::MCSymbolRefExpr::create(), llvm::MCStreamer::emitInt32(), EmitSymbolRefWithOfs(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::emitValueToAlignment(), llvm::MCStreamer::getContext(), info, S, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::ARM64UnwindEmitter::Emit().

ARM64EmitUnwindCode()

static void ARM64EmitUnwindCode ( MCStreamer &  streamer, const WinEH::Instruction &  inst  )

static

Definition at line 441 of file MCWin64EH.cpp.

References assert(), b, llvm::MCStreamer::emitInt8(), llvm_unreachable, Mode, llvm::WinEH::Instruction::Offset, Offset, llvm::WinEH::Instruction::Operation, llvm::WinEH::Instruction::Register, llvm::Win64EH::UOP_AddFP, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocMedium, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_ClearUnwoundToCall, llvm::Win64EH::UOP_Context, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_PACSignLR, llvm::Win64EH::UOP_PushMachFrame, llvm::Win64EH::UOP_SaveAnyRegD, llvm::Win64EH::UOP_SaveAnyRegDP, llvm::Win64EH::UOP_SaveAnyRegDPX, llvm::Win64EH::UOP_SaveAnyRegDX, llvm::Win64EH::UOP_SaveAnyRegI, llvm::Win64EH::UOP_SaveAnyRegIP, llvm::Win64EH::UOP_SaveAnyRegIPX, llvm::Win64EH::UOP_SaveAnyRegIX, llvm::Win64EH::UOP_SaveAnyRegQ, llvm::Win64EH::UOP_SaveAnyRegQP, llvm::Win64EH::UOP_SaveAnyRegQPX, llvm::Win64EH::UOP_SaveAnyRegQX, llvm::Win64EH::UOP_SaveFPLR, llvm::Win64EH::UOP_SaveFPLRX, llvm::Win64EH::UOP_SaveFReg, llvm::Win64EH::UOP_SaveFRegP, llvm::Win64EH::UOP_SaveFRegPX, llvm::Win64EH::UOP_SaveFRegX, llvm::Win64EH::UOP_SaveLRPair, llvm::Win64EH::UOP_SaveNext, llvm::Win64EH::UOP_SaveR19R20X, llvm::Win64EH::UOP_SaveReg, llvm::Win64EH::UOP_SaveRegP, llvm::Win64EH::UOP_SaveRegPX, llvm::Win64EH::UOP_SaveRegX, llvm::Win64EH::UOP_SetFP, and llvm::Win64EH::UOP_TrapFrame.

Referenced by ARM64EmitUnwindInfoForSegment().

ARM64EmitUnwindInfo()

static void ARM64EmitUnwindInfo ( MCStreamer &  streamer, WinEH::FrameInfo *  info, bool  TryPacked = true  )

static

Definition at line 1344 of file MCWin64EH.cpp.

References ARM64CountOfUnwindCodes(), ARM64EmitUnwindInfoForSegment(), ARM64FindSegmentsInFunction(), GetAbsDifference(), llvm::MCStreamer::getContext(), I, info, llvm::report_fatal_error(), llvm::MCContext::reportError(), S, and simplifyARM64Opcodes().

Referenced by llvm::Win64EH::ARM64UnwindEmitter::Emit(), and llvm::Win64EH::ARM64UnwindEmitter::EmitUnwindInfo().

ARM64EmitUnwindInfoForSegment()

static void ARM64EmitUnwindInfoForSegment ( MCStreamer &  streamer, WinEH::FrameInfo *  info, WinEH::FrameInfo::Segment &  Seg, bool  TryPacked = true  )

static

Definition at line 1197 of file MCWin64EH.cpp.

References Align, ARM64EmitUnwindCode(), ARM64ProcessEpilogs(), assert(), checkARM64PackedEpilog(), llvm::MCSymbolRefExpr::create(), llvm::MCContext::createTempSymbol(), llvm::MCStreamer::emitInt32(), llvm::MCStreamer::emitInt8(), llvm::MCStreamer::emitLabel(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::emitValueToAlignment(), llvm::WinEH::FrameInfo::Segment::Epilogs, llvm::MCStreamer::getContext(), llvm::WinEH::FrameInfo::Segment::HasProlog, i, I, info, llvm::WinEH::FrameInfo::Segment::Length, llvm::WinEH::FrameInfo::Segment::Offset, llvm::report_fatal_error(), llvm::reverse(), llvm::WinEH::FrameInfo::Segment::Symbol, tryARM64PackedUnwind(), and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by ARM64EmitUnwindInfo().

ARM64FindSegmentsInFunction()

static void ARM64FindSegmentsInFunction ( MCStreamer &  streamer, WinEH::FrameInfo *  info, int64_t  RawFuncLength  )

static

Definition at line 1116 of file MCWin64EH.cpp.

References checkARM64Instructions(), and info.

Referenced by ARM64EmitUnwindInfo().

ARM64ProcessEpilogs()

static void ARM64ProcessEpilogs ( WinEH::FrameInfo *  info, WinEH::FrameInfo::Segment *  Seg, uint32_t &  TotalCodeBytes, MapVector< MCSymbol *, uint32_t > &  EpilogInfo  )

static

Definition at line 1072 of file MCWin64EH.cpp.

References ARM64CountOfUnwindCodes(), assert(), llvm::MapVector< KeyT, ValueT, MapType, VectorType >::clear(), llvm::MapVector< KeyT, ValueT, MapType, VectorType >::end(), llvm::WinEH::FrameInfo::Segment::Epilogs, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::find(), FindMatchingEpilog(), getARM64OffsetInProlog(), llvm::WinEH::FrameInfo::Segment::HasProlog, I, info, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::lookup(), and S.

Referenced by ARM64EmitUnwindInfoForSegment().

ARMCountOfInstructionBytes()

static uint32_t ARMCountOfInstructionBytes ( ArrayRef< WinEH::Instruction >  Insns, bool *  HasCustom = nullptr  )

static

Definition at line 1490 of file MCWin64EH.cpp.

References I, llvm_unreachable, llvm::Win64EH::UOP_AllocHuge, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_Custom, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_EndNop, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_SaveFRegD0D15, llvm::Win64EH::UOP_SaveFRegD16D31, llvm::Win64EH::UOP_SaveFRegD8D15, llvm::Win64EH::UOP_SaveLR, llvm::Win64EH::UOP_SaveRegMask, llvm::Win64EH::UOP_SaveRegsR4R7LR, llvm::Win64EH::UOP_SaveSP, llvm::Win64EH::UOP_WideAllocHuge, llvm::Win64EH::UOP_WideAllocLarge, llvm::Win64EH::UOP_WideAllocMedium, llvm::Win64EH::UOP_WideEndNop, llvm::Win64EH::UOP_WideNop, llvm::Win64EH::UOP_WideSaveRegMask, and llvm::Win64EH::UOP_WideSaveRegsR4R11LR.

Referenced by checkARMPackedEpilog(), and tryARMPackedUnwind().

ARMCountOfUnwindCodes()

static uint32_t ARMCountOfUnwindCodes ( ArrayRef< WinEH::Instruction >  Insns )

static

Definition at line 1419 of file MCWin64EH.cpp.

References I, llvm_unreachable, llvm::Win64EH::UOP_AllocHuge, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_Custom, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_EndNop, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_SaveFRegD0D15, llvm::Win64EH::UOP_SaveFRegD16D31, llvm::Win64EH::UOP_SaveFRegD8D15, llvm::Win64EH::UOP_SaveLR, llvm::Win64EH::UOP_SaveRegMask, llvm::Win64EH::UOP_SaveRegsR4R7LR, llvm::Win64EH::UOP_SaveSP, llvm::Win64EH::UOP_WideAllocHuge, llvm::Win64EH::UOP_WideAllocLarge, llvm::Win64EH::UOP_WideAllocMedium, llvm::Win64EH::UOP_WideEndNop, llvm::Win64EH::UOP_WideNop, llvm::Win64EH::UOP_WideSaveRegMask, and llvm::Win64EH::UOP_WideSaveRegsR4R11LR.

Referenced by ARMEmitUnwindInfo(), checkARMPackedEpilog(), and getARMOffsetInProlog().

ARMEmitRuntimeFunction()

static void ARMEmitRuntimeFunction ( MCStreamer &  streamer, const WinEH::FrameInfo *  info  )

static

Definition at line 2514 of file MCWin64EH.cpp.

References Align, llvm::MCSymbolRefExpr::create(), llvm::MCStreamer::emitInt32(), EmitSymbolRefWithOfs(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::emitValueToAlignment(), llvm::MCStreamer::getContext(), info, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::ARMUnwindEmitter::Emit().

ARMEmitUnwindCode()

static void ARMEmitUnwindCode ( MCStreamer &  streamer, const WinEH::Instruction &  inst  )

static

Definition at line 1587 of file MCWin64EH.cpp.

References assert(), llvm::MCStreamer::emitInt8(), i, llvm_unreachable, lr, llvm::WinEH::Instruction::Offset, llvm::WinEH::Instruction::Operation, llvm::WinEH::Instruction::Register, llvm::Win64EH::UOP_AllocHuge, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_Custom, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_EndNop, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_SaveFRegD0D15, llvm::Win64EH::UOP_SaveFRegD16D31, llvm::Win64EH::UOP_SaveFRegD8D15, llvm::Win64EH::UOP_SaveLR, llvm::Win64EH::UOP_SaveRegMask, llvm::Win64EH::UOP_SaveRegsR4R7LR, llvm::Win64EH::UOP_SaveSP, llvm::Win64EH::UOP_WideAllocHuge, llvm::Win64EH::UOP_WideAllocLarge, llvm::Win64EH::UOP_WideAllocMedium, llvm::Win64EH::UOP_WideEndNop, llvm::Win64EH::UOP_WideNop, llvm::Win64EH::UOP_WideSaveRegMask, and llvm::Win64EH::UOP_WideSaveRegsR4R11LR.

Referenced by ARMEmitUnwindInfo().

ARMEmitUnwindInfo()

static void ARMEmitUnwindInfo ( MCStreamer &  streamer, WinEH::FrameInfo *  info, bool  TryPacked = true  )

static

Definition at line 2258 of file MCWin64EH.cpp.

References Align, ARMCountOfUnwindCodes(), ARMEmitUnwindCode(), assert(), c, checkARMInstructions(), checkARMPackedEpilog(), llvm::MapVector< KeyT, ValueT, MapType, VectorType >::clear(), llvm::MCConstantExpr::create(), llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createOr(), llvm::MCContext::createTempSymbol(), llvm::MCStreamer::emitInt32(), llvm::MCStreamer::emitInt8(), llvm::MCStreamer::emitLabel(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::emitValueToAlignment(), llvm::MapVector< KeyT, ValueT, MapType, VectorType >::end(), Epilog, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::find(), FindMatchingEpilog(), getARMOffsetInProlog(), llvm::MCStreamer::getContext(), GetOptionalAbsDifference(), GetSubDivExpr(), i, I, info, isARMTerminator(), llvm::MapVector< KeyT, ValueT, MapType, VectorType >::lookup(), llvm::report_fatal_error(), llvm::MCContext::reportError(), tryARMPackedUnwind(), and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::ARMUnwindEmitter::Emit(), and llvm::Win64EH::ARMUnwindEmitter::EmitUnwindInfo().

checkARM64Instructions()

static void checkARM64Instructions ( MCStreamer &  Streamer, ArrayRef< WinEH::Instruction >  Insns, const MCSymbol *  Begin, const MCSymbol *  End, StringRef  Name, StringRef  Type  )

static

Definition at line 302 of file MCWin64EH.cpp.

Referenced by ARM64FindSegmentsInFunction().

checkARM64PackedEpilog()

static int checkARM64PackedEpilog ( MCStreamer &  streamer, WinEH::FrameInfo *  info, WinEH::FrameInfo::Segment *  Seg, int  PrologCodeBytes  )

static

Definition at line 753 of file MCWin64EH.cpp.

References ARM64CountOfUnwindCodes(), Epilog, llvm::WinEH::FrameInfo::Segment::Epilogs, getARM64OffsetInProlog(), info, llvm::WinEH::FrameInfo::Segment::Length, llvm::WinEH::FrameInfo::Segment::Offset, and Offset.

Referenced by ARM64EmitUnwindInfoForSegment().

checkARMInstructions()

static void checkARMInstructions ( MCStreamer &  Streamer, ArrayRef< WinEH::Instruction >  Insns, const MCSymbol *  Begin, const MCSymbol *  End, StringRef  Name, StringRef  Type  )

static

Definition at line 1549 of file MCWin64EH.cpp.

Referenced by ARMEmitUnwindInfo().

checkARMPackedEpilog()

static int checkARMPackedEpilog ( MCStreamer &  streamer, WinEH::FrameInfo *  info, int  PrologCodeBytes  )

static

Definition at line 1759 of file MCWin64EH.cpp.

References ARMCountOfInstructionBytes(), ARMCountOfUnwindCodes(), llvm::WinEH::FrameInfo::Epilog::Condition, Epilog, getARMOffsetInProlog(), GetOptionalAbsDifference(), info, and llvm::WinEH::FrameInfo::Epilog::Instructions.

Referenced by ARMEmitUnwindInfo().

CountOfUnwindCodes()

static uint8_t CountOfUnwindCodes ( std::vector< WinEH::Instruction > &  Insns )

static

Definition at line 25 of file MCWin64EH.cpp.

References I, llvm_unreachable, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_PushMachFrame, llvm::Win64EH::UOP_PushNonVol, llvm::Win64EH::UOP_SaveNonVol, llvm::Win64EH::UOP_SaveNonVolBig, llvm::Win64EH::UOP_SaveXMM128, llvm::Win64EH::UOP_SaveXMM128Big, and llvm::Win64EH::UOP_SetFPReg.

Referenced by EmitUnwindInfo().

EmitAbsDifference()

static void EmitAbsDifference ( MCStreamer &  Streamer, const MCSymbol *  LHS, const MCSymbol *  RHS  )

static

Definition at line 53 of file MCWin64EH.cpp.

References Context, llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createSub(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::getContext(), LHS, and RHS.

Referenced by EmitUnwindCode(), and EmitUnwindInfo().

EmitRuntimeFunction()

static void EmitRuntimeFunction ( MCStreamer &  streamer, const WinEH::FrameInfo *  info  )

static

Definition at line 154 of file MCWin64EH.cpp.

References Align, llvm::MCSymbolRefExpr::create(), EmitSymbolRefWithOfs(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::emitValueToAlignment(), llvm::MCStreamer::getContext(), info, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::UnwindEmitter::Emit(), and EmitUnwindInfo().

EmitSymbolRefWithOfs() [1/2]

static void EmitSymbolRefWithOfs ( MCStreamer &  streamer, const MCSymbol *  Base, const MCSymbol *  Other  )

static

Definition at line 141 of file MCWin64EH.cpp.

References llvm::sampleprof::Base, Context, llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createAdd(), llvm::MCBinaryExpr::createSub(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::getContext(), Other, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

EmitSymbolRefWithOfs() [2/2]

static void EmitSymbolRefWithOfs ( MCStreamer &  streamer, const MCSymbol *  Base, int64_t  Offset  )

static

Definition at line 130 of file MCWin64EH.cpp.

References llvm::sampleprof::Base, Context, llvm::MCConstantExpr::create(), llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createAdd(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::getContext(), llvm::Offset, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by ARM64EmitRuntimeFunction(), ARMEmitRuntimeFunction(), and EmitRuntimeFunction().

EmitUnwindCode()

static void EmitUnwindCode ( MCStreamer &  streamer, const MCSymbol *  begin, WinEH::Instruction &  inst  )

static

Definition at line 62 of file MCWin64EH.cpp.

References b2, llvm::sys::path::begin(), EmitAbsDifference(), llvm::MCStreamer::emitInt16(), llvm::MCStreamer::emitInt8(), llvm::WinEH::Instruction::Label, llvm_unreachable, llvm::WinEH::Instruction::Offset, llvm::WinEH::Instruction::Operation, llvm::WinEH::Instruction::Register, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_PushMachFrame, llvm::Win64EH::UOP_PushNonVol, llvm::Win64EH::UOP_SaveNonVol, llvm::Win64EH::UOP_SaveNonVolBig, llvm::Win64EH::UOP_SaveXMM128, llvm::Win64EH::UOP_SaveXMM128Big, and llvm::Win64EH::UOP_SetFPReg.

Referenced by EmitUnwindInfo().

EmitUnwindInfo()

static void EmitUnwindInfo ( MCStreamer &  streamer, WinEH::FrameInfo *  info  )

static

Definition at line 166 of file MCWin64EH.cpp.

References Align, assert(), c, CountOfUnwindCodes(), llvm::MCSymbolRefExpr::create(), llvm::MCContext::createTempSymbol(), EmitAbsDifference(), llvm::MCStreamer::emitInt16(), llvm::MCStreamer::emitInt32(), llvm::MCStreamer::emitInt8(), llvm::MCStreamer::emitLabel(), EmitRuntimeFunction(), EmitUnwindCode(), llvm::MCStreamer::emitValue(), llvm::MCStreamer::emitValueToAlignment(), llvm::MCStreamer::getContext(), info, llvm::WinEH::Instruction::Offset, llvm::WinEH::Instruction::Operation, llvm::WinEH::Instruction::Register, llvm::Win64EH::UNW_ChainInfo, llvm::Win64EH::UNW_ExceptionHandler, llvm::Win64EH::UNW_TerminateHandler, llvm::Win64EH::UOP_SetFPReg, and llvm::MCSymbolRefExpr::VK_COFF_IMGREL32.

Referenced by llvm::Win64EH::UnwindEmitter::EmitUnwindInfo().

FindMatchingEpilog()

static MCSymbol* FindMatchingEpilog ( const std::vector< WinEH::Instruction > &  EpilogInstrs, const std::vector< MCSymbol * > &  Epilogs, const WinEH::FrameInfo *  info  )

static

Definition at line 643 of file MCWin64EH.cpp.

References assert(), i, info, and llvm::Match.

Referenced by ARM64ProcessEpilogs(), and ARMEmitUnwindInfo().

GetAbsDifference()

static int64_t GetAbsDifference ( MCStreamer &  Streamer, const MCSymbol *  LHS, const MCSymbol *  RHS  )

static

Definition at line 293 of file MCWin64EH.cpp.

References GetOptionalAbsDifference(), LHS, llvm::report_fatal_error(), and RHS.

Referenced by ARM64EmitUnwindInfo().

getARM64OffsetInProlog()

static int getARM64OffsetInProlog ( const std::vector< WinEH::Instruction > &  Prolog, const std::vector< WinEH::Instruction > &  Epilog  )

static

Definition at line 732 of file MCWin64EH.cpp.

References ARM64CountOfUnwindCodes(), Epilog, I, and Prolog.

Referenced by ARM64ProcessEpilogs(), and checkARM64PackedEpilog().

getARMOffsetInProlog()

static int getARMOffsetInProlog ( const std::vector< WinEH::Instruction > &  Prolog, const std::vector< WinEH::Instruction > &  Epilog, bool  CanTweakProlog  )

static

Definition at line 1723 of file MCWin64EH.cpp.

References ARMCountOfUnwindCodes(), Epilog, I, Prolog, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_EndNop, and llvm::Win64EH::UOP_WideEndNop.

Referenced by ARMEmitUnwindInfo(), and checkARMPackedEpilog().

GetOptionalAbsDifference()

static std::optional<int64_t> GetOptionalAbsDifference ( MCStreamer &  Streamer, const MCSymbol *  LHS, const MCSymbol *  RHS  )

static

Definition at line 276 of file MCWin64EH.cpp.

References Context, llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createSub(), llvm::MCObjectStreamer::getAssembler(), llvm::MCStreamer::getContext(), LHS, and RHS.

Referenced by ARMEmitUnwindInfo(), checkARMPackedEpilog(), GetAbsDifference(), and tryARMPackedUnwind().

GetSubDivExpr()

static const MCExpr* GetSubDivExpr ( MCStreamer &  Streamer, const MCSymbol *  LHS, const MCSymbol *  RHS, int  Div  )

static

Definition at line 264 of file MCWin64EH.cpp.

References Context, llvm::MCConstantExpr::create(), llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createDiv(), llvm::MCBinaryExpr::createSub(), llvm::MCStreamer::getContext(), LHS, and RHS.

Referenced by ARMEmitUnwindInfo().

isARMTerminator()

static bool isARMTerminator ( const WinEH::Instruction &  inst )

static

Definition at line 1574 of file MCWin64EH.cpp.

References llvm::WinEH::Instruction::Operation, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_EndNop, and llvm::Win64EH::UOP_WideEndNop.

Referenced by ARMEmitUnwindInfo().

parseRegMask()

static bool parseRegMask ( unsigned  Mask, bool &  HasLR, bool &  HasR11, unsigned &  Folded, int &  IntRegs  )

static

Definition at line 1816 of file MCWin64EH.cpp.

References First, IntRegs, llvm::BitmaskEnumDetail::Mask(), and N.

Referenced by tryARMPackedUnwind().

simplifyARM64Opcodes()

static void simplifyARM64Opcodes ( std::vector< WinEH::Instruction > &  Instructions, bool  Reverse  )

static

Definition at line 668 of file MCWin64EH.cpp.

References Instructions, llvm::Win64EH::UOP_AddFP, llvm::Win64EH::UOP_SaveFPLR, llvm::Win64EH::UOP_SaveFPLRX, llvm::Win64EH::UOP_SaveNext, llvm::Win64EH::UOP_SaveR19R20X, llvm::Win64EH::UOP_SaveRegP, llvm::Win64EH::UOP_SaveRegPX, and llvm::Win64EH::UOP_SetFP.

Referenced by ARM64EmitUnwindInfo().

tryARM64PackedUnwind()

static bool tryARM64PackedUnwind ( WinEH::FrameInfo *  info, uint32_t  FuncLength, int  PackedEpilogOffset  )

static

Definition at line 796 of file MCWin64EH.cpp.

References info, and llvm::Win64EH::UOP_SetFP.

Referenced by ARM64EmitUnwindInfoForSegment().

tryARMPackedUnwind()

static bool tryARMPackedUnwind ( MCStreamer &  streamer, WinEH::FrameInfo *  info, uint32_t  FuncLength  )

static

Definition at line 1856 of file MCWin64EH.cpp.

References ARMCountOfInstructionBytes(), assert(), llvm::WinEH::FrameInfo::Epilog::Condition, Epilog, FloatRegs, GetOptionalAbsDifference(), H, info, llvm::WinEH::FrameInfo::Epilog::Instructions, IntRegs, llvm_unreachable, llvm::WinEH::Instruction::Offset, llvm::WinEH::Instruction::Operation, parseRegMask(), llvm::WinEH::Instruction::Register, llvm::MipsISD::Ret, llvm::Win64EH::UOP_AllocHuge, llvm::Win64EH::UOP_AllocLarge, llvm::Win64EH::UOP_AllocSmall, llvm::Win64EH::UOP_Custom, llvm::Win64EH::UOP_End, llvm::Win64EH::UOP_EndNop, llvm::Win64EH::UOP_Nop, llvm::Win64EH::UOP_SaveFRegD0D15, llvm::Win64EH::UOP_SaveFRegD16D31, llvm::Win64EH::UOP_SaveFRegD8D15, llvm::Win64EH::UOP_SaveLR, llvm::Win64EH::UOP_SaveRegMask, llvm::Win64EH::UOP_SaveRegsR4R7LR, llvm::Win64EH::UOP_SaveSP, llvm::Win64EH::UOP_WideAllocHuge, llvm::Win64EH::UOP_WideAllocLarge, llvm::Win64EH::UOP_WideAllocMedium, llvm::Win64EH::UOP_WideEndNop, llvm::Win64EH::UOP_WideNop, llvm::Win64EH::UOP_WideSaveRegMask, and llvm::Win64EH::UOP_WideSaveRegsR4R11LR.

Referenced by ARMEmitUnwindInfo().