llvm::UnwindOpcodeAssembler Class Reference

#include "Target/ARM/MCTargetDesc/ARMUnwindOpAsm.h"

Public Member Functions
	UnwindOpcodeAssembler ()
void	Reset ()
	Reset the unwind opcode assembler.
void	setPersonality (const MCSymbol *Per)
	Set the personality.
void	EmitRegSave (uint32_t RegSave)
	Emit unwind opcodes for .save directives.
void	EmitVFPRegSave (uint32_t VFPRegSave)
	Emit unwind opcodes for .vsave directives.
void	EmitSetSP (uint16_t Reg)
	Emit unwind opcodes to copy address from source register to $sp.
void	EmitSPOffset (int64_t Offset)
	Emit unwind opcodes to add $sp with an offset.
void	EmitRaw (const SmallVectorImpl< uint8_t > &Opcodes)
	Emit unwind raw opcodes.
void	Finalize (unsigned &PersonalityIndex, SmallVectorImpl< uint8_t > &Result)
	Finalize the unwind opcode sequence for emitBytes()

Detailed Description

Definition at line 25 of file ARMUnwindOpAsm.h.

Constructor & Destructor Documentation

UnwindOpcodeAssembler()

llvm::UnwindOpcodeAssembler::UnwindOpcodeAssembler ( )

inline

Definition at line 32 of file ARMUnwindOpAsm.h.

References llvm::SmallVectorTemplateBase< T, bool >::push_back().

Member Function Documentation

EmitRaw()

void llvm::UnwindOpcodeAssembler::EmitRaw ( const SmallVectorImpl< uint8_t > &  Opcodes )

inline

Emit unwind raw opcodes.

Definition at line 62 of file ARMUnwindOpAsm.h.

References llvm::SmallVectorTemplateCommon< T, typename >::back(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SmallVectorImpl< T >::insert(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorBase< Size_T >::size().

EmitRegSave()

void UnwindOpcodeAssembler::EmitRegSave

(

uint32_t

RegSave

)

Emit unwind opcodes for .save directives.

Definition at line 66 of file ARMUnwindOpAsm.cpp.

References llvm::countr_one(), Range, llvm::ARM::EHABI::UNWIND_OPCODE_POP_RA_AUTH_CODE, llvm::ARM::EHABI::UNWIND_OPCODE_POP_REG_MASK, llvm::ARM::EHABI::UNWIND_OPCODE_POP_REG_MASK_R4, llvm::ARM::EHABI::UNWIND_OPCODE_POP_REG_RANGE_R4, and llvm::ARM::EHABI::UNWIND_OPCODE_POP_REG_RANGE_R4_R14.

EmitSetSP()

void UnwindOpcodeAssembler::EmitSetSP

(

uint16_t

Reg

)

Emit unwind opcodes to copy address from source register to $sp.

Definition at line 130 of file ARMUnwindOpAsm.cpp.

References llvm::ARM::EHABI::UNWIND_OPCODE_SET_VSP.

EmitSPOffset()

void UnwindOpcodeAssembler::EmitSPOffset

(

int64_t

Offset

)

Emit unwind opcodes to add $sp with an offset.

Definition at line 135 of file ARMUnwindOpAsm.cpp.

References llvm::encodeULEB128(), llvm::Offset, llvm::ARM::EHABI::UNWIND_OPCODE_DEC_VSP, llvm::ARM::EHABI::UNWIND_OPCODE_INC_VSP, and llvm::ARM::EHABI::UNWIND_OPCODE_INC_VSP_ULEB128.

EmitVFPRegSave()

void UnwindOpcodeAssembler::EmitVFPRegSave

(

uint32_t

VFPRegSave

)

Emit unwind opcodes for .vsave directives.

Definition at line 107 of file ARMUnwindOpAsm.cpp.

References llvm::bit_width(), llvm::countl_one(), llvm::ARM::EHABI::UNWIND_OPCODE_POP_VFP_REG_RANGE_FSTMFDD, and llvm::ARM::EHABI::UNWIND_OPCODE_POP_VFP_REG_RANGE_FSTMFDD_D16.

Finalize()

void UnwindOpcodeAssembler::Finalize	(	unsigned &	PersonalityIndex,
		SmallVectorImpl< uint8_t > &	Result
	)

Finalize the unwind opcode sequence for emitBytes()

Definition at line 158 of file ARMUnwindOpAsm.cpp.

References llvm::ARM::EHABI::AEABI_UNWIND_CPP_PR0, llvm::ARM::EHABI::AEABI_UNWIND_CPP_PR1, assert(), llvm::ARM::EHABI::NUM_PERSONALITY_INDEX, Reset(), and llvm::SmallVectorBase< Size_T >::size().

Reset()

void llvm::UnwindOpcodeAssembler::Reset ( )

inline

Reset the unwind opcode assembler.

Definition at line 37 of file ARMUnwindOpAsm.h.

References llvm::SmallVectorImpl< T >::clear(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by Finalize().

setPersonality()

void llvm::UnwindOpcodeAssembler::setPersonality ( const MCSymbol *  Per )

inline

Set the personality.

Definition at line 45 of file ARMUnwindOpAsm.h.

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The documentation for this class was generated from the following files:

• lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.h
• lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.cpp