HexagonCopyToCombine.cpp File Reference

#include "llvm/PassSupport.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "Hexagon.h"
#include "HexagonInstrInfo.h"
#include "HexagonRegisterInfo.h"
#include "HexagonSubtarget.h"
#include "HexagonTargetMachine.h"
#include "HexagonMachineFunctionInfo.h"

Include dependency graph for HexagonCopyToCombine.cpp:

Go to the source code of this file.

Namespaces
	llvm
	List of target independent CodeGen pass IDs.

Macros
#define	DEBUG_TYPE   "hexagon-copy-combine"

Functions
void	llvm::initializeHexagonCopyToCombinePass (PassRegistry &)
	INITIALIZE_PASS (HexagonCopyToCombine,"hexagon-copy-combine","Hexagon Copy-To-Combine Pass", false, false) static bool isCombinableInstType(MachineInstr *MI
const HexagonInstrInfo bool ShouldCombineAggressively	switch (MI->getOpcode())
static bool	isGreaterThan8BitTFRI (MachineInstr *I)
static bool	isGreaterThan6BitTFRI (MachineInstr *I)
static bool	areCombinableOperations (const TargetRegisterInfo *TRI, MachineInstr *HighRegInst, MachineInstr *LowRegInst)
static bool	isEvenReg (unsigned Reg)
static void	removeKillInfo (MachineInstr *MI, unsigned RegNotKilled)
static bool	isUnsafeToMoveAcross (MachineInstr *I, unsigned UseReg, unsigned DestReg, const TargetRegisterInfo *TRI)

Variables
static cl::opt< bool >	IsCombinesDisabled ("disable-merge-into-combines", cl::Hidden, cl::ZeroOrMore, cl::init(false), cl::desc("Disable merging into combines"))
static cl::opt< unsigned >	MaxNumOfInstsBetweenNewValueStoreAndTFR ("max-num-inst-between-tfr-and-nv-store", cl::Hidden, cl::init(4), cl::desc("Maximum distance between a tfr feeding a store we ""consider the store still to be newifiable"))
const HexagonInstrInfo *	TII
return	false

Macro Definition Documentation

#define DEBUG_TYPE   "hexagon-copy-combine"

Definition at line 14 of file HexagonCopyToCombine.cpp.

Function Documentation

static bool areCombinableOperations ( const TargetRegisterInfo *  TRI, MachineInstr *  HighRegInst, MachineInstr *  LowRegInst  )

static

areCombinableOperations - Returns true if the two instruction can be merge into a combine (ignoring register constraints).

Definition at line 172 of file HexagonCopyToCombine.cpp.

References llvm::MachineInstr::getOpcode(), llvm::HexagonSubtarget::hasV4TOps(), isGreaterThan6BitTFRI(), isGreaterThan8BitTFRI(), and llvm::HexagonRegisterInfo::Subtarget.

INITIALIZE_PASS	(	HexagonCopyToCombine	,
		"hexagon-copy-combine"	,
		"Hexagon Copy-To-Combine Pass"	,
		false	,
		false
	)

static bool isEvenReg ( unsigned  Reg )

static

Definition at line 205 of file HexagonCopyToCombine.cpp.

References llvm::TargetRegisterInfo::isPhysicalRegister().

static bool isGreaterThan6BitTFRI ( MachineInstr *  I )

static

Definition at line 165 of file HexagonCopyToCombine.cpp.

References llvm::MachineOperand::getImm(), llvm::MachineInstr::getOpcode(), and llvm::MachineInstr::getOperand().

Referenced by areCombinableOperations().

static bool isGreaterThan8BitTFRI ( MachineInstr *  I )

static

Definition at line 161 of file HexagonCopyToCombine.cpp.

References llvm::MachineOperand::getImm(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), and llvm::isInt< 8 >().

Referenced by areCombinableOperations().

static bool isUnsafeToMoveAcross ( MachineInstr *  I, unsigned  UseReg, unsigned  DestReg, const TargetRegisterInfo *  TRI  )

static

isUnsafeToMoveAcross - Returns true if it is unsafe to move a copy instruction from UseReg to DestReg over the instruction I.

Definition at line 222 of file HexagonCopyToCombine.cpp.

References llvm::MachineInstr::hasUnmodeledSideEffects(), llvm::MachineInstr::isDebugValue(), llvm::MachineInstr::isInlineAsm(), llvm::MachineInstr::modifiesRegister(), and llvm::MachineInstr::readsRegister().

static void removeKillInfo ( MachineInstr *  MI, unsigned  RegNotKilled  )

static

Definition at line 211 of file HexagonCopyToCombine.cpp.

References llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), I, llvm::MachineOperand::isKill(), llvm::MachineOperand::isReg(), and llvm::MachineOperand::setIsKill().

const HexagonInstrInfo bool ShouldCombineAggressively switch

(

MI->

getOpcode()

)

Definition at line 117 of file HexagonCopyToCombine.cpp.

References llvm::isInt< 8 >(), and llvm::HexagonII::MO_NO_FLAG.

Variable Documentation

return false

Definition at line 158 of file HexagonCopyToCombine.cpp.

cl::opt<bool> IsCombinesDisabled("disable-merge-into-combines", cl::Hidden, cl::ZeroOrMore, cl::init(false), cl::desc("Disable merging into combines"))

static

cl::opt<unsigned> MaxNumOfInstsBetweenNewValueStoreAndTFR("max-num-inst-between-tfr-and-nv-store", cl::Hidden, cl::init(4), cl::desc("Maximum distance between a tfr feeding a store we ""consider the store still to be newifiable"))

static

const HexagonInstrInfo* TII

Definition at line 115 of file HexagonCopyToCombine.cpp.

Referenced by llvm::MachineBasicBlock::addLiveIn(), llvm::X86FrameLowering::adjustForHiPEPrologue(), llvm::X86FrameLowering::adjustForSegmentedStacks(), llvm::MachineBasicBlock::canFallThrough(), llvm::createBURRListDAGScheduler(), llvm::createHybridListDAGScheduler(), llvm::createILPListDAGScheduler(), llvm::createSourceListDAGScheduler(), llvm::Mips16FrameLowering::eliminateCallFramePseudoInstr(), llvm::SparcFrameLowering::eliminateCallFramePseudoInstr(), llvm::MSP430FrameLowering::eliminateCallFramePseudoInstr(), llvm::XCoreFrameLowering::eliminateCallFramePseudoInstr(), llvm::Thumb1FrameLowering::eliminateCallFramePseudoInstr(), llvm::PPCFrameLowering::eliminateCallFramePseudoInstr(), llvm::X86FrameLowering::eliminateCallFramePseudoInstr(), llvm::AArch64FrameLowering::eliminateCallFramePseudoInstr(), llvm::AArch64RegisterInfo::eliminateFrameIndex(), llvm::SparcRegisterInfo::eliminateFrameIndex(), llvm::MSP430RegisterInfo::eliminateFrameIndex(), llvm::XCoreRegisterInfo::eliminateFrameIndex(), llvm::HexagonRegisterInfo::eliminateFrameIndex(), llvm::SystemZRegisterInfo::eliminateFrameIndex(), llvm::PPCRegisterInfo::eliminateFrameIndex(), llvm::ARMBaseRegisterInfo::eliminateFrameIndex(), llvm::AArch64TargetLowering::emitAtomicBinary(), llvm::PPCTargetLowering::EmitAtomicBinary(), llvm::AArch64TargetLowering::emitAtomicBinaryMinMax(), llvm::AArch64TargetLowering::emitAtomicCmpSwap(), llvm::PPCTargetLowering::emitEHSjLjLongJmp(), llvm::PPCTargetLowering::emitEHSjLjSetJmp(), llvm::Mips16FrameLowering::emitEpilogue(), llvm::XCoreFrameLowering::emitEpilogue(), llvm::HexagonFrameLowering::emitEpilogue(), llvm::SparcFrameLowering::emitEpilogue(), llvm::MSP430FrameLowering::emitEpilogue(), llvm::Thumb1FrameLowering::emitEpilogue(), llvm::ARMFrameLowering::emitEpilogue(), llvm::PPCFrameLowering::emitEpilogue(), llvm::X86FrameLowering::emitEpilogue(), llvm::AArch64FrameLowering::emitEpilogue(), llvm::AArch64TargetLowering::EmitF128CSEL(), llvm::AArch64FrameLowering::emitFrameMemOps(), llvm::R600TargetLowering::EmitInstrWithCustomInserter(), llvm::SITargetLowering::EmitInstrWithCustomInserter(), llvm::SparcTargetLowering::EmitInstrWithCustomInserter(), llvm::XCoreTargetLowering::EmitInstrWithCustomInserter(), llvm::MSP430TargetLowering::EmitInstrWithCustomInserter(), llvm::PPCTargetLowering::EmitInstrWithCustomInserter(), llvm::Thumb2RegisterInfo::emitLoadConstPool(), llvm::Thumb1RegisterInfo::emitLoadConstPool(), llvm::ARMBaseRegisterInfo::emitLoadConstPool(), llvm::PPCTargetLowering::EmitPartwordAtomicBinary(), llvm::Mips16FrameLowering::emitPrologue(), llvm::XCoreFrameLowering::emitPrologue(), llvm::HexagonFrameLowering::emitPrologue(), llvm::SparcFrameLowering::emitPrologue(), llvm::MSP430FrameLowering::emitPrologue(), llvm::Thumb1FrameLowering::emitPrologue(), llvm::ARMFrameLowering::emitPrologue(), llvm::PPCFrameLowering::emitPrologue(), llvm::X86FrameLowering::emitPrologue(), llvm::AArch64FrameLowering::emitPrologue(), llvm::MSP430TargetLowering::EmitShiftInstr(), llvm::finalizeBundle(), FindCallSeqStart(), FoldOperand(), llvm::ARMHazardRecognizer::getHazardType(), llvm::MSP430InstrInfo::GetInstSizeInBytes(), llvm::SDNode::getOperationName(), llvm::SIRegisterInfo::getReservedRegs(), llvm::R600RegisterInfo::getReservedRegs(), llvm::ARMTargetLowering::getSchedulingPreference(), INITIALIZE_PASS(), IsChainDependent(), llvm::PPCRegisterInfo::lowerCRRestore(), llvm::PPCRegisterInfo::lowerCRSpilling(), llvm::PPCRegisterInfo::lowerDynamicAlloc(), llvm::R600TargetLowering::LowerOperation(), llvm::PPCRegisterInfo::lowerVRSAVERestore(), llvm::PPCRegisterInfo::lowerVRSAVESpilling(), llvm::PPCRegisterInfo::materializeFrameBaseRegister(), llvm::ARMBaseRegisterInfo::materializeFrameBaseRegister(), llvm::AArch64FrameLowering::processFunctionBeforeCalleeSavedScan(), llvm::MachineRegisterInfo::recomputeRegClass(), replaceFI(), llvm::ARMBaseRegisterInfo::resolveFrameIndex(), llvm::XCoreFrameLowering::restoreCalleeSavedRegisters(), llvm::Thumb1FrameLowering::restoreCalleeSavedRegisters(), llvm::HexagonFrameLowering::restoreCalleeSavedRegisters(), llvm::SystemZFrameLowering::restoreCalleeSavedRegisters(), llvm::MSP430FrameLowering::restoreCalleeSavedRegisters(), llvm::X86FrameLowering::restoreCalleeSavedRegisters(), llvm::PPCFrameLowering::restoreCalleeSavedRegisters(), restoreCRs(), llvm::SelectionDAGISel::runOnMachineFunction(), llvm::VirtRegMap::runOnMachineFunction(), llvm::MachineTraceMetrics::runOnMachineFunction(), llvm::Mips16RegisterInfo::saveScavengerRegister(), llvm::FunctionLoweringInfo::set(), llvm::XCoreFrameLowering::spillCalleeSavedRegisters(), llvm::HexagonFrameLowering::spillCalleeSavedRegisters(), llvm::Thumb1FrameLowering::spillCalleeSavedRegisters(), llvm::SystemZFrameLowering::spillCalleeSavedRegisters(), llvm::MSP430FrameLowering::spillCalleeSavedRegisters(), llvm::X86FrameLowering::spillCalleeSavedRegisters(), llvm::PPCFrameLowering::spillCalleeSavedRegisters(), llvm::MachineBasicBlock::SplitCriticalEdge(), and llvm::MachineBasicBlock::updateTerminator().