llvm::BranchFolder Class Reference

#include <BranchFolding.h>

List of all members.

Classes
class	MBFIWrapper
	This class keeps track of branch frequencies of newly created blocks and tail-merged blocks.
class	MergePotentialsElt
class	SameTailElt
Public Member Functions
	BranchFolder (bool defaultEnableTailMerge, bool CommonHoist, const MachineBlockFrequencyInfo &MBFI, const MachineBranchProbabilityInfo &MBPI)
bool	OptimizeFunction (MachineFunction &MF, const TargetInstrInfo *tii, const TargetRegisterInfo *tri, MachineModuleInfo *mmi)

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Detailed Description

Definition at line 27 of file BranchFolding.h.

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Constructor & Destructor Documentation

BranchFolder::BranchFolder	(	bool	defaultEnableTailMerge,
		bool	CommonHoist,
		const MachineBlockFrequencyInfo &	MBFI,
		const MachineBranchProbabilityInfo &	MBPI
	)		[explicit]

Definition at line 107 of file BranchFolding.cpp.

References llvm::cl::BOU_FALSE, llvm::cl::BOU_TRUE, llvm::cl::BOU_UNSET, and FlagEnableTailMerge.

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Member Function Documentation

bool BranchFolder::OptimizeFunction	(	MachineFunction &	MF,
		const TargetInstrInfo *	tii,
		const TargetRegisterInfo *	tri,
		MachineModuleInfo *	mmi
	)

OptimizeFunction - Perhaps branch folding, tail merging and other CFG optimizations on the given function.

Definition at line 189 of file BranchFolding.cpp.

References llvm::TargetInstrInfo::AnalyzeBranch(), llvm::MachineFunction::begin(), llvm::SmallPtrSetImplBase::clear(), llvm::MachineBasicBlock::CorrectExtraCFGEdges(), llvm::SmallVectorBase::empty(), llvm::MachineFunction::end(), llvm::MachineOperand::getIndex(), llvm::MachineFunction::getJumpTableInfo(), llvm::MachineJumpTableInfo::getJumpTables(), llvm::MachineFunction::getRegInfo(), I, llvm::MachineRegisterInfo::invalidateLiveness(), llvm::MachineOperand::isJTI(), llvm::MachineJumpTableInfo::RemoveJumpTable(), llvm::TargetRegisterInfo::trackLivenessAfterRegAlloc(), and llvm::MachineRegisterInfo::tracksLiveness().

Referenced by INITIALIZE_PASS().

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

• BranchFolding.h
• BranchFolding.cpp