PPCInstrInfo.cpp File Reference

#include "PPCInstrInfo.h"
#include "MCTargetDesc/PPCPredicates.h"
#include "PPC.h"
#include "PPCHazardRecognizers.h"
#include "PPCInstrBuilder.h"
#include "PPCMachineFunctionInfo.h"
#include "PPCTargetMachine.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/CodeGen/LiveIntervals.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/CodeGen/RegisterClassInfo.h"
#include "llvm/CodeGen/RegisterPressure.h"
#include "llvm/CodeGen/ScheduleDAG.h"
#include "llvm/CodeGen/SlotIndexes.h"
#include "llvm/CodeGen/StackMaps.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
#include "PPCGenInstrInfo.inc"

Include dependency graph for PPCInstrInfo.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "ppc-instr-info"
#define	GET_INSTRMAP_INFO
#define	GET_INSTRINFO_CTOR_DTOR
#define	InfoArrayIdxFMAInst   0
#define	InfoArrayIdxFAddInst   1
#define	InfoArrayIdxFMULInst   2
#define	InfoArrayIdxAddOpIdx   3
#define	InfoArrayIdxMULOpIdx   4
#define	InfoArrayIdxFSubInst   5

Functions
	STATISTIC (NumStoreSPILLVSRRCAsVec, "Number of spillvsrrc spilled to stack as vec")
	STATISTIC (NumStoreSPILLVSRRCAsGpr, "Number of spillvsrrc spilled to stack as gpr")
	STATISTIC (NumGPRtoVSRSpill, "Number of gpr spills to spillvsrrc")
	STATISTIC (CmpIselsConverted, "Number of ISELs that depend on comparison of constants converted")
	STATISTIC (MissedConvertibleImmediateInstrs, "Number of compare-immediate instructions fed by constants")
	STATISTIC (NumRcRotatesConvertedToRcAnd, "Number of record-form rotates converted to record-form andi")
static unsigned	getCRBitValue (unsigned CRBit)
static bool	MBBDefinesCTR (MachineBasicBlock &MBB)
static bool	isLdStSafeToCluster (const MachineInstr &LdSt, const TargetRegisterInfo *TRI)
static bool	isClusterableLdStOpcPair (unsigned FirstOpc, unsigned SecondOpc, const PPCSubtarget &Subtarget)
static bool	isAnImmediateOperand (const MachineOperand &MO)
static unsigned	selectReg (int64_t Imm1, int64_t Imm2, unsigned CompareOpc, unsigned TrueReg, unsigned FalseReg, unsigned CRSubReg)
static void	swapMIOperands (MachineInstr &MI, unsigned Op1, unsigned Op2)
static bool	isSignExtendingOp (const MachineInstr &MI)
static bool	isZeroExtendingOp (const MachineInstr &MI)

Variables
static cl::opt< bool >	DisableCTRLoopAnal ("disable-ppc-ctrloop-analysis", cl::Hidden, cl::desc("Disable analysis for CTR loops"))
static cl::opt< bool >	DisableCmpOpt ("disable-ppc-cmp-opt", cl::desc("Disable compare instruction optimization"), cl::Hidden)
static cl::opt< bool >	VSXSelfCopyCrash ("crash-on-ppc-vsx-self-copy", cl::desc("Causes the backend to crash instead of generating a nop VSX copy"), cl::Hidden)
static cl::opt< bool >	UseOldLatencyCalc ("ppc-old-latency-calc", cl::Hidden, cl::desc("Use the old (incorrect) instruction latency calculation"))
static cl::opt< float >	FMARPFactor ("ppc-fma-rp-factor", cl::Hidden, cl::init(1.5), cl::desc("register pressure factor for the transformations."))
static cl::opt< bool >	EnableFMARegPressureReduction ("ppc-fma-rp-reduction", cl::Hidden, cl::init(true), cl::desc("enable register pressure reduce in machine combiner pass."))
static const uint16_t	FMAOpIdxInfo [][6]
const unsigned	MAX_DEPTH = 1

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "ppc-instr-info"

Definition at line 46 of file PPCInstrInfo.cpp.

GET_INSTRINFO_CTOR_DTOR

#define GET_INSTRINFO_CTOR_DTOR

Definition at line 49 of file PPCInstrInfo.cpp.

GET_INSTRMAP_INFO

#define GET_INSTRMAP_INFO

Definition at line 48 of file PPCInstrInfo.cpp.

InfoArrayIdxAddOpIdx

#define InfoArrayIdxAddOpIdx   3

Definition at line 290 of file PPCInstrInfo.cpp.

InfoArrayIdxFAddInst

#define InfoArrayIdxFAddInst   1

Definition at line 288 of file PPCInstrInfo.cpp.

InfoArrayIdxFMAInst

#define InfoArrayIdxFMAInst   0

Definition at line 287 of file PPCInstrInfo.cpp.

InfoArrayIdxFMULInst

#define InfoArrayIdxFMULInst   2

Definition at line 289 of file PPCInstrInfo.cpp.

InfoArrayIdxFSubInst

#define InfoArrayIdxFSubInst   5

Definition at line 292 of file PPCInstrInfo.cpp.

InfoArrayIdxMULOpIdx

#define InfoArrayIdxMULOpIdx   4

Definition at line 291 of file PPCInstrInfo.cpp.

Function Documentation

getCRBitValue()

static unsigned getCRBitValue ( unsigned  CRBit )

static

Definition at line 1659 of file PPCInstrInfo.cpp.

References assert(), and llvm::MipsISD::Ret.

Referenced by llvm::PPCInstrInfo::copyPhysReg().

isAnImmediateOperand()

static bool isAnImmediateOperand ( const MachineOperand &  MO )

static

Definition at line 2995 of file PPCInstrInfo.cpp.

References llvm::MachineOperand::isCPI(), llvm::MachineOperand::isGlobal(), and llvm::MachineOperand::isImm().

Referenced by llvm::PPCInstrInfo::expandPostRAPseudo().

isClusterableLdStOpcPair()

static bool isClusterableLdStOpcPair ( unsigned  FirstOpc, unsigned  SecondOpc, const PPCSubtarget &  Subtarget  )

static

Definition at line 2792 of file PPCInstrInfo.cpp.

Referenced by llvm::PPCInstrInfo::shouldClusterMemOps().

isLdStSafeToCluster()

static bool isLdStSafeToCluster ( const MachineInstr &  LdSt, const TargetRegisterInfo *  TRI  )

static

Definition at line 2772 of file PPCInstrInfo.cpp.

References assert(), llvm::MachineInstr::getNumExplicitOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineInstr::hasOrderedMemoryRef(), llvm::MachineOperand::isFI(), llvm::MachineOperand::isReg(), llvm::MachineInstr::modifiesRegister(), and TRI.

Referenced by llvm::PPCInstrInfo::shouldClusterMemOps().

isSignExtendingOp()

static bool isSignExtendingOp ( const MachineInstr &  MI )

static

Definition at line 5089 of file PPCInstrInfo.cpp.

References MI, and llvm::RISCVISD::SRAW.

Referenced by llvm::PPCInstrInfo::isSignOrZeroExtended().

isZeroExtendingOp()

static bool isZeroExtendingOp ( const MachineInstr &  MI )

static

Definition at line 5124 of file PPCInstrInfo.cpp.

References MI.

Referenced by llvm::PPCInstrInfo::isSignOrZeroExtended().

MBBDefinesCTR()

static bool MBBDefinesCTR ( MachineBasicBlock &  MBB )

static

Definition at line 2138 of file PPCInstrInfo.cpp.

References llvm::MachineBasicBlock::begin(), llvm::MachineBasicBlock::end(), I, llvm::ARM_PROC::IE, and MBB.

Referenced by llvm::PPCInstrInfo::isProfitableToIfCvt().

selectReg()

static unsigned selectReg ( int64_t  Imm1, int64_t  Imm2, unsigned  CompareOpc, unsigned  TrueReg, unsigned  FalseReg, unsigned  CRSubReg  )

static

Definition at line 3132 of file PPCInstrInfo.cpp.

References llvm_unreachable.

STATISTIC() [1/6]

STATISTIC	(	CmpIselsConverted	,
		"Number of ISELs that depend on comparison of constants converted"
	)

STATISTIC() [2/6]

STATISTIC	(	MissedConvertibleImmediateInstrs	,
		"Number of compare-immediate instructions fed by constants"
	)

STATISTIC() [3/6]

STATISTIC	(	NumGPRtoVSRSpill	,
		"Number of gpr spills to spillvsrrc"
	)

STATISTIC() [4/6]

STATISTIC	(	NumRcRotatesConvertedToRcAnd	,
		"Number of record-form rotates converted to record-form andi"
	)

STATISTIC() [5/6]

STATISTIC	(	NumStoreSPILLVSRRCAsGpr	,
		"Number of spillvsrrc spilled to stack as gpr"
	)

STATISTIC() [6/6]

STATISTIC	(	NumStoreSPILLVSRRCAsVec	,
		"Number of spillvsrrc spilled to stack as vec"
	)

swapMIOperands()

static void swapMIOperands ( MachineInstr &  MI, unsigned  Op1, unsigned  Op2  )

static

Definition at line 4274 of file PPCInstrInfo.cpp.

References assert(), i, llvm::max(), MI, and llvm::min().

Variable Documentation

DisableCmpOpt

cl::opt<bool> DisableCmpOpt("disable-ppc-cmp-opt", cl::desc("Disable compare instruction optimization"), cl::Hidden)

static

Referenced by llvm::PPCInstrInfo::optimizeCompareInstr().

DisableCTRLoopAnal

cl:: opt<bool> DisableCTRLoopAnal("disable-ppc-ctrloop-analysis", cl::Hidden, cl::desc("Disable analysis for CTR loops"))

static

Referenced by llvm::PPCInstrInfo::analyzeBranch().

EnableFMARegPressureReduction

cl::opt<bool> EnableFMARegPressureReduction("ppc-fma-rp-reduction", cl::Hidden, cl::init(true), cl::desc("enable register pressure reduce in machine combiner pass."))

static

Referenced by llvm::PPCInstrInfo::shouldReduceRegisterPressure().

FMAOpIdxInfo

const uint16_t FMAOpIdxInfo[][6]

static

Initial value:

= {
    
    {PPC::XSMADDADP, PPC::XSADDDP, PPC::XSMULDP, 1, 2, PPC::XSSUBDP},
    {PPC::XSMADDASP, PPC::XSADDSP, PPC::XSMULSP, 1, 2, PPC::XSSUBSP},
    {PPC::XVMADDADP, PPC::XVADDDP, PPC::XVMULDP, 1, 2, PPC::XVSUBDP},
    {PPC::XVMADDASP, PPC::XVADDSP, PPC::XVMULSP, 1, 2, PPC::XVSUBSP},
    {PPC::FMADD, PPC::FADD, PPC::FMUL, 3, 1, PPC::FSUB},
    {PPC::FMADDS, PPC::FADDS, PPC::FMULS, 3, 1, PPC::FSUBS}}

Definition at line 301 of file PPCInstrInfo.cpp.

Referenced by llvm::PPCInstrInfo::finalizeInsInstrs(), and llvm::PPCInstrInfo::getFMAPatterns().

FMARPFactor

cl::opt<float> FMARPFactor("ppc-fma-rp-factor", cl::Hidden, cl::init(1.5), cl::desc("register pressure factor for the transformations."))

static

Referenced by llvm::PPCInstrInfo::shouldReduceRegisterPressure().

MAX_DEPTH

const unsigned MAX_DEPTH = 1

Definition at line 5200 of file PPCInstrInfo.cpp.

Referenced by llvm::PPCInstrInfo::isSignOrZeroExtended().

UseOldLatencyCalc

cl::opt<bool> UseOldLatencyCalc("ppc-old-latency-calc", cl::Hidden, cl::desc("Use the old (incorrect) instruction latency calculation"))

static

Referenced by llvm::PPCInstrInfo::getInstrLatency().

VSXSelfCopyCrash

cl::opt<bool> VSXSelfCopyCrash("crash-on-ppc-vsx-self-copy", cl::desc("Causes the backend to crash instead of generating a nop VSX copy"), cl::Hidden)

static

Referenced by llvm::PPCInstrInfo::copyPhysReg().