LLVM  6.0.0svn
Public Types | Public Member Functions | List of all members
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 MachineOperandgetCallTarget () 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

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 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

◆ 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 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.


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