SystemZShortenInst.cpp File Reference

#include "SystemZInstrInfo.h"
#include "SystemZTargetMachine.h"
#include "llvm/CodeGen/LiveRegUnits.h"
#include "llvm/CodeGen/MachineFunctionAnalysisManager.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachinePassManager.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/IR/Analysis.h"
#include "llvm/Pass.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "systemz-shorten-inst"

Functions
	INITIALIZE_PASS (SystemZShortenInstLegacy, DEBUG_TYPE, "SystemZ Instruction Shortening", false, false) FunctionPass *llvm
static void	tieOpsIfNeeded (MachineInstr &MI)
static bool	shortenIIF (MachineInstr &MI, unsigned LLIxL, unsigned LLIxH, const SystemZInstrInfo *TII, const TargetRegisterInfo *TRI, LiveRegUnits &LiveRegs)
static bool	shortenOn0 (MachineInstr &MI, unsigned Opcode, const SystemZInstrInfo *TII)
static bool	shortenOn01 (MachineInstr &MI, unsigned Opcode, const SystemZInstrInfo *TII)
static bool	shortenOn001 (MachineInstr &MI, unsigned Opcode, const SystemZInstrInfo *TII)
static bool	shortenOn001AddCC (MachineInstr &MI, unsigned Opcode, const SystemZInstrInfo *TII, LiveRegUnits &LiveRegs)
static bool	shortenFPConv (MachineInstr &MI, unsigned Opcode, const SystemZInstrInfo *TII)
static bool	shortenFusedFPOp (MachineInstr &MI, unsigned Opcode, const SystemZInstrInfo *TII)
static bool	processBlock (MachineBasicBlock &MBB, LiveRegUnits &LiveRegs, const SystemZInstrInfo *TII, const TargetRegisterInfo *TRI)
static bool	shortenInstructionsInMF (MachineFunction &F)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "systemz-shorten-inst"

Definition at line 28 of file SystemZShortenInst.cpp.

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	SystemZShortenInstLegacy	,
		DEBUG_TYPE	,
		"SystemZ Instruction Shortening"	,
		false	,
		false	)

Definition at line 50 of file SystemZShortenInst.cpp.

References llvm::createSystemZShortenInstLegacyPass(), and DEBUG_TYPE.

processBlock()

bool processBlock ( MachineBasicBlock & MBB, LiveRegUnits & LiveRegs, const SystemZInstrInfo * TII, const TargetRegisterInfo * TRI )

static

Definition at line 209 of file SystemZShortenInst.cpp.

References Changed, llvm::MachineOperand::getImm(), llvm::SystemZ::getTwoOperandOpcode(), MBB, MI, llvm::reverse(), llvm::MachineOperand::setImm(), shortenFPConv(), shortenFusedFPOp(), shortenIIF(), shortenOn0(), shortenOn001(), shortenOn001AddCC(), shortenOn01(), TII, and TRI.

Referenced by shortenInstructionsInMF().

shortenFPConv()

bool shortenFPConv ( MachineInstr & MI, unsigned Opcode, const SystemZInstrInfo * TII )

static

Definition at line 158 of file SystemZShortenInst.cpp.

References llvm::MachineInstrBuilder::add(), llvm::SystemZMC::getFirstReg(), MI, Mode, and TII.

Referenced by processBlock().

shortenFusedFPOp()

bool shortenFusedFPOp ( MachineInstr & MI, unsigned Opcode, const SystemZInstrInfo * TII )

static

Definition at line 181 of file SystemZShortenInst.cpp.

References llvm::MachineInstrBuilder::add(), llvm::SystemZMC::getFirstReg(), llvm::MachineOperand::getReg(), MI, and TII.

Referenced by processBlock().

shortenIIF()

bool shortenIIF ( MachineInstr & MI, unsigned LLIxL, unsigned LLIxH, const SystemZInstrInfo * TII, const TargetRegisterInfo * TRI, LiveRegUnits & LiveRegs )

static

Definition at line 71 of file SystemZShortenInst.cpp.

References llvm::SystemZMC::getRegAsGR64(), Imm, llvm::SystemZ::isImmLH(), llvm::SystemZ::isImmLL(), MI, Reg, TII, TRI, and uint64_t.

Referenced by processBlock().

shortenInstructionsInMF()

bool shortenInstructionsInMF ( MachineFunction & F )

static

Definition at line 392 of file SystemZShortenInst.cpp.

References Changed, F, MBB, processBlock(), TII, and TRI.

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

shortenOn0()

bool shortenOn0 ( MachineInstr & MI, unsigned Opcode, const SystemZInstrInfo * TII )

static

Definition at line 105 of file SystemZShortenInst.cpp.

References llvm::SystemZMC::getFirstReg(), MI, and TII.

Referenced by processBlock().

shortenOn001()

bool shortenOn001 ( MachineInstr & MI, unsigned Opcode, const SystemZInstrInfo * TII )

static

Definition at line 129 of file SystemZShortenInst.cpp.

References llvm::SystemZMC::getFirstReg(), MI, tieOpsIfNeeded(), and TII.

Referenced by processBlock(), and shortenOn001AddCC().

shortenOn001AddCC()

bool shortenOn001AddCC ( MachineInstr & MI, unsigned Opcode, const SystemZInstrInfo * TII, LiveRegUnits & LiveRegs )

static

Definition at line 143 of file SystemZShortenInst.cpp.

References llvm::MachineInstrBuilder::addReg(), llvm::Dead, llvm::ImplicitDefine, MI, shortenOn001(), and TII.

Referenced by processBlock().

shortenOn01()

bool shortenOn01 ( MachineInstr & MI, unsigned Opcode, const SystemZInstrInfo * TII )

static

Definition at line 116 of file SystemZShortenInst.cpp.

References llvm::SystemZMC::getFirstReg(), MI, and TII.

Referenced by processBlock().

tieOpsIfNeeded()

void tieOpsIfNeeded ( MachineInstr & MI )

static

Definition at line 62 of file SystemZShortenInst.cpp.

References MI, and llvm::MCOI::TIED_TO.

Referenced by shortenOn001().