llvm::outliner::OutlinedFunction Struct Reference

The information necessary to create an outlined function for some class of candidate. More...

#include "llvm/CodeGen/MachineOutliner.h"

Public Member Functions
unsigned	getOccurrenceCount () const
	Return the number of candidates for this OutlinedFunction.
unsigned	getOutliningCost () const
	Return the number of bytes it would take to outline this function.
unsigned	getNotOutlinedCost () const
	Return the size in bytes of the unoutlined sequences.
unsigned	getBenefit () const
	Return the number of instructions that would be saved by outlining this function.
unsigned	getNumInstrs () const
	Return the number of instructions in this sequence.
	OutlinedFunction (std::vector< Candidate > &Candidates, unsigned SequenceSize, unsigned FrameOverhead, unsigned FrameConstructionID)
	OutlinedFunction ()=delete

Public Attributes
std::vector< Candidate >	Candidates
MachineFunction *	MF = nullptr
	The actual outlined function created.
unsigned	SequenceSize = 0
	Represents the size of a sequence in bytes.
unsigned	FrameOverhead = 0
	Target-defined overhead of constructing a frame for this function.
unsigned	FrameConstructionID = 0
	Target-defined identifier for constructing a frame for this function.

Detailed Description

The information necessary to create an outlined function for some class of candidate.

Definition at line 217 of file MachineOutliner.h.

Constructor & Destructor Documentation

OutlinedFunction() [1/2]

llvm::outliner::OutlinedFunction::OutlinedFunction ( std::vector< Candidate > &  Candidates, unsigned  SequenceSize, unsigned  FrameOverhead, unsigned  FrameConstructionID  )

inline

Definition at line 265 of file MachineOutliner.h.

References B, llvm::CallingConv::C, Candidates, and getBenefit().

OutlinedFunction() [2/2]

llvm::outliner::OutlinedFunction::OutlinedFunction ( )

delete

Member Function Documentation

getBenefit()

unsigned llvm::outliner::OutlinedFunction::getBenefit ( ) const

inline

Return the number of instructions that would be saved by outlining this function.

Definition at line 255 of file MachineOutliner.h.

References getNotOutlinedCost(), and getOutliningCost().

Referenced by OutlinedFunction().

getNotOutlinedCost()

unsigned llvm::outliner::OutlinedFunction::getNotOutlinedCost ( ) const

inline

Return the size in bytes of the unoutlined sequences.

Definition at line 249 of file MachineOutliner.h.

References getOccurrenceCount(), and SequenceSize.

Referenced by getBenefit().

getNumInstrs()

unsigned llvm::outliner::OutlinedFunction::getNumInstrs ( ) const

inline

Return the number of instructions in this sequence.

Definition at line 263 of file MachineOutliner.h.

References Candidates.

getOccurrenceCount()

unsigned llvm::outliner::OutlinedFunction::getOccurrenceCount ( ) const

inline

Return the number of candidates for this OutlinedFunction.

Definition at line 237 of file MachineOutliner.h.

References Candidates.

Referenced by getNotOutlinedCost().

getOutliningCost()

unsigned llvm::outliner::OutlinedFunction::getOutliningCost ( ) const

inline

Return the number of bytes it would take to outline this function.

Definition at line 241 of file MachineOutliner.h.

References llvm::CallingConv::C, Candidates, FrameOverhead, and SequenceSize.

Referenced by getBenefit().

Member Data Documentation

Candidates

std::vector<Candidate> llvm::outliner::OutlinedFunction::Candidates

Definition at line 220 of file MachineOutliner.h.

Referenced by llvm::ARMBaseInstrInfo::buildOutlinedFrame(), getNumInstrs(), getOccurrenceCount(), getOutliningCost(), and OutlinedFunction().

FrameConstructionID

unsigned llvm::outliner::OutlinedFunction::FrameConstructionID = 0

Target-defined identifier for constructing a frame for this function.

Definition at line 234 of file MachineOutliner.h.

Referenced by llvm::AArch64InstrInfo::buildOutlinedFrame(), llvm::ARMBaseInstrInfo::buildOutlinedFrame(), and llvm::X86InstrInfo::buildOutlinedFrame().

FrameOverhead

unsigned llvm::outliner::OutlinedFunction::FrameOverhead = 0

Target-defined overhead of constructing a frame for this function.

Definition at line 231 of file MachineOutliner.h.

Referenced by getOutliningCost().

MF

MachineFunction* llvm::outliner::OutlinedFunction::MF = nullptr

The actual outlined function created.

This is initialized after we go through and create the actual function.

Definition at line 224 of file MachineOutliner.h.

SequenceSize

unsigned llvm::outliner::OutlinedFunction::SequenceSize = 0

Represents the size of a sequence in bytes.

(Some instructions vary widely in size, so just counting the instructions isn't very useful.)

Definition at line 228 of file MachineOutliner.h.

Referenced by getNotOutlinedCost(), and getOutliningCost().

---

The documentation for this struct was generated from the following file:

• include/llvm/CodeGen/MachineOutliner.h