llvm::PatchPointOpers Class Reference

MI-level patchpoint operands. More...

#include <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
unsigned	getMetaIdx (unsigned Pos=0) const
const MachineOperand &	getMetaOper (unsigned Pos)
unsigned	getArgIdx () const
unsigned	getVarIdx () const
unsigned	getStackMapStartIdx () const
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 37 of file StackMaps.h.

Member Enumeration Documentation

anonymous enum

Enumerate the meta operands.

Enumerator
IDPos
NBytesPos
TargetPos
NArgPos
CCPos
MetaEnd

Definition at line 40 of file StackMaps.h.

Constructor & Destructor Documentation

PatchPointOpers::PatchPointOpers ( const MachineInstr *  MI )

explicit

Definition at line 31 of file StackMaps.cpp.

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

Member Function Documentation

unsigned llvm::PatchPointOpers::getArgIdx ( ) const

inline

Definition at line 60 of file StackMaps.h.

References getMetaIdx(), and MetaEnd.

Referenced by getStackMapStartIdx().

unsigned llvm::PatchPointOpers::getMetaIdx ( unsigned  Pos = 0 ) const

inline

Definition at line 51 of file StackMaps.h.

References MetaEnd.

Referenced by getArgIdx(), getMetaOper(), getVarIdx(), and PatchPointOpers().

const MachineOperand& llvm::PatchPointOpers::getMetaOper ( unsigned  Pos )

inline

Definition at line 56 of file StackMaps.h.

References getMetaIdx(), and llvm::MachineInstr::getOperand().

Referenced by LowerPATCHPOINT().

unsigned PatchPointOpers::getNextScratchIdx

(

unsigned

StartIdx = 0

)

const

Get the next scratch register operand index.

Definition at line 51 of file StackMaps.cpp.

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

Referenced by LowerPATCHPOINT().

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 71 of file StackMaps.h.

References getArgIdx(), and 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 64 of file StackMaps.h.

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

Referenced by foldPatchpoint(), getNextScratchIdx(), and getStackMapStartIdx().

bool llvm::PatchPointOpers::hasDef ( ) const

inline

Definition at line 49 of file StackMaps.h.

bool llvm::PatchPointOpers::isAnyReg ( ) const

inline

Definition at line 48 of file StackMaps.h.

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

• StackMaps.h
• StackMaps.cpp