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

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 76 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 79 of file StackMaps.h.

Constructor & Destructor Documentation

PatchPointOpers()

PatchPointOpers::PatchPointOpers ( const MachineInstr *  MI )

explicit

Definition at line 61 of file StackMaps.cpp.

References assert(), isReg(), and MI.

Member Function Documentation

getArgIdx()

unsigned llvm::PatchPointOpers::getArgIdx ( ) const

inline

Definition at line 118 of file StackMaps.h.

References MetaEnd.

Referenced by getStackMapStartIdx().

getCallingConv()

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

inline

Returns the calling convention.

Definition at line 114 of file StackMaps.h.

References CCPos, and llvm::MachineOperand::getImm().

Referenced by isAnyReg().

getCallTarget()

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

inline

Returns the target of the underlying call.

Definition at line 109 of file StackMaps.h.

References TargetPos.

getID()

uint64_t llvm::PatchPointOpers::getID ( ) const

inline

Return the ID for the given patchpoint.

Definition at line 101 of file StackMaps.h.

References llvm::MachineOperand::getImm(), and IDPos.

Referenced by llvm::StackMaps::recordPatchPoint().

getNextScratchIdx()

unsigned PatchPointOpers::getNextScratchIdx

(

unsigned

StartIdx = 0

)

const

Get the next scratch register operand index.

Definition at line 76 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().

getNumCallArgs()

uint32_t llvm::PatchPointOpers::getNumCallArgs ( ) const

inline

Return the number of call arguments.

Definition at line 121 of file StackMaps.h.

References MI, and NArgPos.

Referenced by getVarIdx(), and llvm::StackMaps::recordPatchPoint().

getNumPatchBytes()

uint32_t llvm::PatchPointOpers::getNumPatchBytes ( ) const

inline

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

Definition at line 104 of file StackMaps.h.

References llvm::MachineOperand::getImm(), and NBytesPos.

Referenced by llvm::AArch64InstrInfo::getInstSizeInBytes(), llvm::PPCInstrInfo::getInstSizeInBytes(), llvm::RISCVInstrInfo::getInstSizeInBytes(), and llvm::SystemZInstrInfo::getInstSizeInBytes().

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 133 of file StackMaps.h.

References getArgIdx(), getVarIdx(), and isAnyReg().

Referenced by llvm::StackMaps::recordPatchPoint().

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 127 of file StackMaps.h.

References getNumCallArgs(), and MetaEnd.

Referenced by getNextScratchIdx(), and getStackMapStartIdx().

hasDef()

bool llvm::PatchPointOpers::hasDef ( ) const

inline

Definition at line 98 of file StackMaps.h.

Referenced by llvm::StackMaps::recordPatchPoint().

isAnyReg()

bool llvm::PatchPointOpers::isAnyReg ( ) const

inline

Definition at line 97 of file StackMaps.h.

References llvm::CallingConv::AnyReg, and getCallingConv().

Referenced by getStackMapStartIdx(), and llvm::StackMaps::recordPatchPoint().

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

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