RISCVDeadRegisterDefinitions.cpp File Reference

#include "RISCV.h"
#include "RISCVSubtarget.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/LiveDebugVariables.h"
#include "llvm/CodeGen/LiveIntervals.h"
#include "llvm/CodeGen/LiveStacks.h"
#include "llvm/CodeGen/MachineFunctionAnalysisManager.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachinePassManager.h"
#include "llvm/CodeGen/SlotIndexes.h"
#include "llvm/IR/Analysis.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "riscv-dead-defs"
#define	RISCV_DEAD_REG_DEF_NAME   "RISC-V Dead register definitions"

Functions
	STATISTIC (NumDeadDefsReplaced, "Number of dead definitions replaced")
	INITIALIZE_PASS (RISCVDeadRegisterDefinitionsLegacy, DEBUG_TYPE, RISCV_DEAD_REG_DEF_NAME, false, false) FunctionPass *llvm
static bool	runDeadRegisterDefinitions (MachineFunction &MF, function_ref< LiveIntervals &()> GetLIS)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "riscv-dead-defs"

Definition at line 26 of file RISCVDeadRegisterDefinitions.cpp.

RISCV_DEAD_REG_DEF_NAME

#define RISCV_DEAD_REG_DEF_NAME   "RISC-V Dead register definitions"

Definition at line 27 of file RISCVDeadRegisterDefinitions.cpp.

Referenced by INITIALIZE_PASS().

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	RISCVDeadRegisterDefinitionsLegacy	,
		DEBUG_TYPE	,
		RISCV_DEAD_REG_DEF_NAME	,
		false	,
		false	)

Definition at line 53 of file RISCVDeadRegisterDefinitions.cpp.

References llvm::createRISCVDeadRegisterDefinitionsLegacyPass(), DEBUG_TYPE, and RISCV_DEAD_REG_DEF_NAME.

runDeadRegisterDefinitions()

bool runDeadRegisterDefinitions ( MachineFunction & MF, function_ref< LiveIntervals &()> GetLIS )

static

Definition at line 60 of file RISCVDeadRegisterDefinitions.cpp.

References assert(), llvm::MCRegisterClass::contains(), llvm::dbgs(), E(), llvm::TargetSubtargetInfo::getInstrInfo(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getSubtarget(), llvm::LiveIntervals::hasInterval(), I, llvm::MachineOperand::isDead(), llvm::MachineOperand::isDef(), llvm::MachineOperand::isEarlyClobber(), llvm::MachineOperand::isReg(), LLVM_DEBUG, MBB, MI, Reg, llvm::LiveIntervals::removeInterval(), llvm::MachineOperand::setReg(), and TII.

Referenced by llvm::RISCVDeadRegisterDefinitionsPass::run().

STATISTIC()

STATISTIC	(	NumDeadDefsReplaced	,
		"Number of dead definitions replaced"	)