llvm::PatchPointOpers Class Reference

MI-level patchpoint operands. More...

#include "llvm/CodeGen/StackMaps.h"

Public Types
enum	{   IDPos, NBytesPos, TargetPos, NArgPos,   CCPos, MetaEnd }
	Enumerate the meta operands. More...

Public Member Functions
	PatchPointOpers (const MachineInstr *MI)
bool	isAnyReg () const
bool	hasDef () const
uint64_t	getID () const
	Return the ID for the given patchpoint. More...
uint32_t	getNumPatchBytes () const
	Return the number of patchable bytes the given patchpoint should emit. More...
const MachineOperand &	getCallTarget () const
	Returns the target of the underlying call. More...
CallingConv::ID	getCallingConv () const
	Returns the calling convention. More...
unsigned	getArgIdx () const
uint32_t	getNumCallArgs () const
	Return the number of call arguments. More...
unsigned	getVarIdx () const
	Get the operand index of the variable list of non-argument operands. More...
unsigned	getStackMapStartIdx () const
	Get the index at which stack map locations will be recorded. More...
unsigned	getNextScratchIdx (unsigned StartIdx=0) const
	Get the next scratch register operand index. More...

Detailed Description

MI-level patchpoint operands.

MI patchpoint operations take the form: [<def>], <id>, <numBytes>, <target>, <numArgs>, <cc>, ...

IR patchpoint intrinsics do not have the <cc> operand because calling convention is part of the subclass data.

SD patchpoint nodes do not have a def operand because it is part of the SDValue.

Patchpoints following the anyregcc convention are handled specially. For these, the stack map also records the location of the return value and arguments.

Definition at line 77 of file StackMaps.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerate the meta operands.

Enumerator
IDPos
NBytesPos
TargetPos
NArgPos
CCPos
MetaEnd

Definition at line 80 of file StackMaps.h.

Constructor & Destructor Documentation

PatchPointOpers()

PatchPointOpers::PatchPointOpers ( const MachineInstr *  MI )

explicit

Definition at line 55 of file StackMaps.cpp.

References assert(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::isDef(), llvm::MachineOperand::isImplicit(), and isReg().

Member Function Documentation

getArgIdx()

unsigned llvm::PatchPointOpers::getArgIdx ( ) const

inline

Definition at line 119 of file StackMaps.h.

getCallingConv()

CallingConv::ID llvm::PatchPointOpers::getCallingConv ( ) const

inline

Returns the calling convention.

Definition at line 115 of file StackMaps.h.

getCallTarget()

const MachineOperand& llvm::PatchPointOpers::getCallTarget ( ) const

inline

Returns the target of the underlying call.

Definition at line 110 of file StackMaps.h.

Referenced by EmitNop(), EmitNops(), and stripRegisterPrefix().

getID()

uint64_t llvm::PatchPointOpers::getID ( ) const

inline

Return the ID for the given patchpoint.

Definition at line 102 of file StackMaps.h.

References llvm::StackMapOpers::IDPos.

getNextScratchIdx()

unsigned PatchPointOpers::getNextScratchIdx

(

unsigned

StartIdx = 0

)

const

Get the next scratch register operand index.

Definition at line 70 of file StackMaps.cpp.

References assert(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), getVarIdx(), llvm::MachineOperand::isDef(), llvm::MachineOperand::isEarlyClobber(), llvm::MachineOperand::isImplicit(), and llvm::MachineOperand::isReg().

Referenced by EmitNop(), EmitNops(), and stripRegisterPrefix().

getNumCallArgs()

uint32_t llvm::PatchPointOpers::getNumCallArgs ( ) const

inline

Return the number of call arguments.

Definition at line 122 of file StackMaps.h.

References llvm::MachineOperand::getImm(), and llvm::MachineInstr::getOperand().

getNumPatchBytes()

uint32_t llvm::PatchPointOpers::getNumPatchBytes ( ) const

inline

Return the number of patchable bytes the given patchpoint should emit.

Definition at line 105 of file StackMaps.h.

References llvm::StackMapOpers::NBytesPos.

Referenced by EmitNop(), EmitNops(), llvm::AArch64InstrInfo::getInstSizeInBytes(), llvm::PPCInstrInfo::getInstSizeInBytes(), and stripRegisterPrefix().

getStackMapStartIdx()

unsigned llvm::PatchPointOpers::getStackMapStartIdx ( ) const

inline

Get the index at which stack map locations will be recorded.

Arguments are not recorded unless the anyregcc convention is used.

Definition at line 134 of file StackMaps.h.

References llvm::StackMapOpers::getVarIdx().

getVarIdx()

unsigned llvm::PatchPointOpers::getVarIdx ( ) const

inline

Get the operand index of the variable list of non-argument operands.

These hold the "live state".

Definition at line 128 of file StackMaps.h.

Referenced by foldPatchpoint(), and getNextScratchIdx().

hasDef()

bool llvm::PatchPointOpers::hasDef ( ) const

inline

Definition at line 99 of file StackMaps.h.

isAnyReg()

bool llvm::PatchPointOpers::isAnyReg ( ) const

inline

Definition at line 98 of file StackMaps.h.

References llvm::CallingConv::AnyReg.

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

• include/llvm/CodeGen/StackMaps.h
• lib/CodeGen/StackMaps.cpp