OptimizePHIs.cpp File Reference

#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/Pass.h"
#include <cassert>

Include dependency graph for OptimizePHIs.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "opt-phis"

Functions
	STATISTIC (NumPHICycles, "Number of PHI cycles replaced")
	STATISTIC (NumDeadPHICycles, "Number of dead PHI cycles")
	INITIALIZE_PASS (OptimizePHIs, DEBUG_TYPE, "Optimize machine instruction PHIs", false, false) bool OptimizePHIs

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "opt-phis"

Definition at line 30 of file OptimizePHIs.cpp.

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	OptimizePHIs	,
		DEBUG_TYPE	,
		"Optimize machine instruction PHIs"	,
		false	,
		false
	)

Definition at line 71 of file OptimizePHIs.cpp.

References assert(), llvm::MachineBasicBlock::begin(), llvm::MachineRegisterInfo::clearKillFlags(), llvm::MachineRegisterInfo::constrainRegClass(), E, llvm::MachineBasicBlock::end(), llvm::MachineInstr::eraseFromParent(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineOperand::getSubReg(), llvm::MachineRegisterInfo::getVRegDef(), I, llvm::MachineInstr::isCopy(), llvm::MachineInstr::isPHI(), llvm::TargetRegisterInfo::isVirtualRegister(), MI, llvm::MachineRegisterInfo::replaceRegWith(), llvm::MachineRegisterInfo::use_nodbg_instructions(), and UseMI.

STATISTIC() [1/2]

STATISTIC	(	NumPHICycles	,
		"Number of PHI cycles replaced"
	)

STATISTIC() [2/2]

STATISTIC	(	NumDeadPHICycles	,
		"Number of dead PHI cycles"
	)