PPCRegisterInfo.cpp File Reference

#include "PPCRegisterInfo.h"
#include "PPCFrameLowering.h"
#include "PPCInstrBuilder.h"
#include "PPCMachineFunctionInfo.h"
#include "PPCSubtarget.h"
#include "PPCTargetMachine.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RegisterScavenging.h"
#include "llvm/CodeGen/TargetFrameLowering.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/VirtRegMap.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include <cstdlib>
#include "PPCGenRegisterInfo.inc"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "reginfo"
#define	GET_REGINFO_TARGET_DESC

Functions
	STATISTIC (InflateGPRC, "Number of gprc inputs for getLargestLegalClass")
	STATISTIC (InflateGP8RC, "Number of g8rc inputs for getLargestLegalClass")
static unsigned	offsetMinAlignForOpcode (unsigned OpC)
static void	emitAccSpillRestoreInfo (MachineBasicBlock &MBB, bool IsPrimed, bool IsRestore)
static void	emitWAccSpillRestoreInfo (MachineBasicBlock &MBB, bool IsRestore)
static unsigned	offsetMinAlign (const MachineInstr &MI)
static unsigned	getOffsetONFromFION (const MachineInstr &MI, unsigned FIOperandNum)

Variables
static cl::opt< bool >	EnableBasePointer ("ppc-use-base-pointer", cl::Hidden, cl::init(true), cl::desc("Enable use of a base pointer for complex stack frames"))
static cl::opt< bool >	AlwaysBasePointer ("ppc-always-use-base-pointer", cl::Hidden, cl::init(false), cl::desc("Force the use of a base pointer in every function"))
static cl::opt< bool >	EnableGPRToVecSpills ("ppc-enable-gpr-to-vsr-spills", cl::Hidden, cl::init(false), cl::desc("Enable spills from gpr to vsr rather than stack"))
static cl::opt< bool >	StackPtrConst ("ppc-stack-ptr-caller-preserved", cl::desc("Consider R1 caller preserved so stack saves of " "caller preserved registers can be LICM candidates"), cl::init(true), cl::Hidden)
static cl::opt< unsigned >	MaxCRBitSpillDist ("ppc-max-crbit-spill-dist", cl::desc("Maximum search distance for definition of CR bit " "spill on ppc"), cl::Hidden, cl::init(100))
static cl::opt< bool >	ReportAccMoves ("ppc-report-acc-moves", cl::desc("Emit information about accumulator register spills " "and copies"), cl::Hidden, cl::init(false))
cl::opt< bool >	DisableAutoPairedVecSt

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "reginfo"

Definition at line 45 of file PPCRegisterInfo.cpp.

GET_REGINFO_TARGET_DESC

#define GET_REGINFO_TARGET_DESC

Definition at line 47 of file PPCRegisterInfo.cpp.

Function Documentation

emitAccSpillRestoreInfo()

void emitAccSpillRestoreInfo ( MachineBasicBlock & MBB, bool IsPrimed, bool IsRestore )

static

Definition at line 1232 of file PPCRegisterInfo.cpp.

References llvm::dbgs(), MBB, and ReportAccMoves.

Referenced by llvm::PPCRegisterInfo::lowerACCRestore(), and llvm::PPCRegisterInfo::lowerACCSpilling().

emitWAccSpillRestoreInfo()

void emitWAccSpillRestoreInfo ( MachineBasicBlock & MBB, bool IsRestore )

static

Definition at line 1293 of file PPCRegisterInfo.cpp.

References llvm::dbgs(), MBB, and ReportAccMoves.

Referenced by llvm::PPCRegisterInfo::lowerWACCRestore(), and llvm::PPCRegisterInfo::lowerWACCSpilling().

getOffsetONFromFION()

unsigned getOffsetONFromFION ( const MachineInstr & MI, unsigned FIOperandNum )

static

Definition at line 1659 of file PPCRegisterInfo.cpp.

References MI.

Referenced by llvm::PPCRegisterInfo::eliminateFrameIndex(), llvm::PPCRegisterInfo::isFrameOffsetLegal(), and llvm::PPCRegisterInfo::resolveFrameIndex().

offsetMinAlign()

unsigned offsetMinAlign ( const MachineInstr & MI )

static

Definition at line 1653 of file PPCRegisterInfo.cpp.

References MI, and offsetMinAlignForOpcode().

Referenced by llvm::PPCRegisterInfo::eliminateFrameIndex(), and llvm::PPCRegisterInfo::isFrameOffsetLegal().

offsetMinAlignForOpcode()

unsigned offsetMinAlignForOpcode ( unsigned OpC )

static

Definition at line 1620 of file PPCRegisterInfo.cpp.

Referenced by offsetMinAlign(), and llvm::PPCRegisterInfo::requiresFrameIndexScavenging().

STATISTIC() [1/2]

STATISTIC	(	InflateGP8RC	,
		"Number of g8rc inputs for getLargestLegalClass"	)

STATISTIC() [2/2]

STATISTIC	(	InflateGPRC	,
		"Number of gprc inputs for getLargestLegalClass"	)

Variable Documentation

AlwaysBasePointer

cl::opt< bool > AlwaysBasePointer("ppc-always-use-base-pointer", cl::Hidden, cl::init(false), cl::desc("Force the use of a base pointer in every function")) ( "ppc-always-use-base-pointer" , cl::Hidden , cl::init(false) , cl::desc("Force the use of a base pointer in every function")  )

static

Referenced by llvm::PPCRegisterInfo::hasBasePointer().

DisableAutoPairedVecSt

cl::opt<bool> DisableAutoPairedVecSt

extern

EnableBasePointer

cl::opt< bool > EnableBasePointer("ppc-use-base-pointer", cl::Hidden, cl::init(true), cl::desc("Enable use of a base pointer for complex stack frames")) ( "ppc-use-base-pointer" , cl::Hidden , cl::init(true) , cl::desc("Enable use of a base pointer for complex stack frames")  )

static

EnableGPRToVecSpills

cl::opt< bool > EnableGPRToVecSpills("ppc-enable-gpr-to-vsr-spills", cl::Hidden, cl::init(false), cl::desc("Enable spills from gpr to vsr rather than stack")) ( "ppc-enable-gpr-to-vsr-spills" , cl::Hidden , cl::init(false) , cl::desc("Enable spills from gpr to vsr rather than stack")  )

static

Referenced by llvm::PPCRegisterInfo::getLargestLegalSuperClass().

MaxCRBitSpillDist

cl::opt< unsigned > MaxCRBitSpillDist("ppc-max-crbit-spill-dist", cl::desc("Maximum search distance for definition of CR bit " "spill on ppc"), cl::Hidden, cl::init(100)) ( "ppc-max-crbit-spill-dist" , cl::desc("Maximum search distance for definition of CR bit " "spill on ppc") , cl::Hidden , cl::init(100)  )

static

Referenced by llvm::PPCRegisterInfo::lowerCRBitSpilling().

ReportAccMoves

cl::opt< bool > ReportAccMoves("ppc-report-acc-moves", cl::desc("Emit information about accumulator register spills " "and copies"), cl::Hidden, cl::init(false)) ( "ppc-report-acc-moves" , cl::desc("Emit information about accumulator register spills " "and copies") , cl::Hidden , cl::init(false)  )

static

Referenced by llvm::PPCRegisterInfo::emitAccCopyInfo(), emitAccSpillRestoreInfo(), and emitWAccSpillRestoreInfo().

StackPtrConst

cl::opt< bool > StackPtrConst("ppc-stack-ptr-caller-preserved", cl::desc("Consider R1 caller preserved so stack saves of " "caller preserved registers can be LICM candidates"), cl::init(true), cl::Hidden) ( "ppc-stack-ptr-caller-preserved" , cl::desc("Consider R1 caller preserved so stack saves of " "caller preserved registers can be LICM candidates") , cl::init(true) , cl::Hidden  )

static

Referenced by llvm::PPCRegisterInfo::isCallerPreservedPhysReg().