#include "PPCFrameLowering.h"
#include "MCTargetDesc/PPCPredicates.h"
#include "PPCInstrBuilder.h"
#include "PPCInstrInfo.h"
#include "PPCMachineFunctionInfo.h"
#include "PPCSubtarget.h"
#include "PPCTargetMachine.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/LivePhysRegs.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/IR/Function.h"
#include "llvm/Target/TargetOptions.h"

Macros
#define	DEBUG_TYPE "framelowering"
#define	CALLEE_SAVED_FPRS
#define	CALLEE_SAVED_GPRS32
#define	CALLEE_SAVED_GPRS64
#define	CALLEE_SAVED_VRS

Functions
	STATISTIC (NumPESpillVSR, "Number of spills to vector in prologue")
	STATISTIC (NumPEReloadVSR, "Number of reloads from vector in epilogue")
	STATISTIC (NumPrologProbed, "Number of prologues probed")
static unsigned	computeReturnSaveOffset (const PPCSubtarget &STI)
static unsigned	computeTOCSaveOffset (const PPCSubtarget &STI)
static unsigned	computeFramePointerSaveOffset (const PPCSubtarget &STI)
static unsigned	computeLinkageSize (const PPCSubtarget &STI)
static unsigned	computeBasePointerSaveOffset (const PPCSubtarget &STI)
static unsigned	computeCRSaveOffset (const PPCSubtarget &STI)
static bool	spillsCR (const MachineFunction &MF)
static bool	hasSpills (const MachineFunction &MF)
static bool	hasNonRISpills (const MachineFunction &MF)
static bool	MustSaveLR (const MachineFunction &MF, MCRegister LR)
	MustSaveLR - Return true if this function requires that we save the LR register onto the stack in the prolog and restore it in the epilog of the function.
static void	restoreCRs (bool is31, bool CR2Spilled, bool CR3Spilled, bool CR4Spilled, MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, ArrayRef< CalleeSavedInfo > CSI, unsigned CSIIndex)
static bool	isCalleeSavedCR (unsigned Reg)

Variables
static cl::opt< bool >	EnablePEVectorSpills ("ppc-enable-pe-vector-spills", cl::desc("Enable spills in prologue to vector registers."), cl::init(false), cl::Hidden)

Macro Definition Documentation

◆ CALLEE_SAVED_FPRS

#define CALLEE_SAVED_FPRS

Value:

      {PPC::F31, -8},     \
      {PPC::F30, -16},    \
      {PPC::F29, -24},    \
      {PPC::F28, -32},    \
      {PPC::F27, -40},    \
      {PPC::F26, -48},    \
      {PPC::F25, -56},    \
      {PPC::F24, -64},    \
      {PPC::F23, -72},    \
      {PPC::F22, -80},    \
      {PPC::F21, -88},    \
      {PPC::F20, -96},    \
      {PPC::F19, -104},   \
      {PPC::F18, -112},   \
      {PPC::F17, -120},   \
      {PPC::F16, -128},   \
      {PPC::F15, -136},   \
      {PPC::F14, -144}

Referenced by llvm::PPCFrameLowering::getCalleeSavedSpillSlots().

◆ CALLEE_SAVED_GPRS32

#define CALLEE_SAVED_GPRS32

Value:

      {PPC::R31, -4},       \
      {PPC::R30, -8},       \
      {PPC::R29, -12},      \
      {PPC::R28, -16},      \
      {PPC::R27, -20},      \
      {PPC::R26, -24},      \
      {PPC::R25, -28},      \
      {PPC::R24, -32},      \
      {PPC::R23, -36},      \
      {PPC::R22, -40},      \
      {PPC::R21, -44},      \
      {PPC::R20, -48},      \
      {PPC::R19, -52},      \
      {PPC::R18, -56},      \
      {PPC::R17, -60},      \
      {PPC::R16, -64},      \
      {PPC::R15, -68},      \
      {PPC::R14, -72}

Referenced by llvm::PPCFrameLowering::getCalleeSavedSpillSlots().

◆ CALLEE_SAVED_GPRS64

#define CALLEE_SAVED_GPRS64

Value:

      {PPC::X31, -8},       \
      {PPC::X30, -16},      \
      {PPC::X29, -24},      \
      {PPC::X28, -32},      \
      {PPC::X27, -40},      \
      {PPC::X26, -48},      \
      {PPC::X25, -56},      \
      {PPC::X24, -64},      \
      {PPC::X23, -72},      \
      {PPC::X22, -80},      \
      {PPC::X21, -88},      \
      {PPC::X20, -96},      \
      {PPC::X19, -104},     \
      {PPC::X18, -112},     \
      {PPC::X17, -120},     \
      {PPC::X16, -128},     \
      {PPC::X15, -136},     \
      {PPC::X14, -144}

Referenced by llvm::PPCFrameLowering::getCalleeSavedSpillSlots().

◆ CALLEE_SAVED_VRS

#define CALLEE_SAVED_VRS

Value:

      {PPC::V31, -16},   \
      {PPC::V30, -32},   \
      {PPC::V29, -48},   \
      {PPC::V28, -64},   \
      {PPC::V27, -80},   \
      {PPC::V26, -96},   \
      {PPC::V25, -112},  \
      {PPC::V24, -128},  \
      {PPC::V23, -144},  \
      {PPC::V22, -160},  \
      {PPC::V21, -176},  \
      {PPC::V20, -192}

Referenced by llvm::PPCFrameLowering::getCalleeSavedSpillSlots().

◆ DEBUG_TYPE

#define DEBUG_TYPE "framelowering"

Definition at line 33 of file PPCFrameLowering.cpp.

Function Documentation

◆ computeBasePointerSaveOffset()

unsigned computeBasePointerSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 69 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::getTargetMachine(), llvm::PPCSubtarget::is32BitELFABI(), and llvm::TargetMachine::isPositionIndependent().

Referenced by llvm::PPCFrameLowering::PPCFrameLowering().

◆ computeCRSaveOffset()

unsigned computeCRSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 78 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI().

Referenced by llvm::PPCFrameLowering::PPCFrameLowering().

◆ computeFramePointerSaveOffset()

unsigned computeFramePointerSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 56 of file PPCFrameLowering.cpp.

Referenced by llvm::PPCFrameLowering::PPCFrameLowering().

◆ computeLinkageSize()

unsigned computeLinkageSize ( const PPCSubtarget & STI )

static

Definition at line 61 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI(), and llvm::PPCSubtarget::isELFv2ABI().

Referenced by llvm::PPCFrameLowering::PPCFrameLowering().

◆ computeReturnSaveOffset()

unsigned computeReturnSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 43 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI().

Referenced by llvm::PPCFrameLowering::PPCFrameLowering().

◆ computeTOCSaveOffset()

unsigned computeTOCSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 50 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI(), and llvm::PPCSubtarget::isELFv2ABI().

Referenced by llvm::PPCFrameLowering::PPCFrameLowering().

◆ hasNonRISpills()

bool hasNonRISpills ( const MachineFunction & MF )

static

Definition at line 262 of file PPCFrameLowering.cpp.

References llvm::MachineFunction::getInfo(), and llvm::PPCFunctionInfo::hasNonRISpills().

Referenced by llvm::PPCFrameLowering::addScavengingSpillSlot().

◆ hasSpills()

bool hasSpills ( const MachineFunction & MF )

static

Definition at line 257 of file PPCFrameLowering.cpp.

References llvm::MachineFunction::getInfo(), and llvm::PPCFunctionInfo::hasSpills().

Referenced by llvm::PPCFrameLowering::addScavengingSpillSlot().

◆ isCalleeSavedCR()

bool isCalleeSavedCR ( unsigned Reg )

static

Definition at line 2602 of file PPCFrameLowering.cpp.

References Reg.

Referenced by llvm::PPCFrameLowering::restoreCalleeSavedRegisters().

◆ MustSaveLR()

bool MustSaveLR	(	const MachineFunction &	MF,
		MCRegister	LR )

static

MustSaveLR - Return true if this function requires that we save the LR register onto the stack in the prolog and restore it in the epilog of the function.

Definition at line 270 of file PPCFrameLowering.cpp.

References llvm::MachineRegisterInfo::def_begin(), llvm::MachineRegisterInfo::def_end(), llvm::MachineFunction::getInfo(), llvm::MachineFunction::getRegInfo(), and llvm::PPCFunctionInfo::isLRStoreRequired().

Referenced by llvm::PPCFrameLowering::determineCalleeSaves(), llvm::PPCFrameLowering::determineFrameLayout(), llvm::PPCFrameLowering::emitEpilogue(), and llvm::PPCFrameLowering::emitPrologue().

◆ restoreCRs()

void restoreCRs	(	bool	is31,
		bool	CR2Spilled,
		bool	CR3Spilled,
		bool	CR4Spilled,
		MachineBasicBlock &	MBB,
		MachineBasicBlock::iterator	MI,
		ArrayRef< CalleeSavedInfo >	CSI,
		unsigned	CSIIndex )

static

Definition at line 2534 of file PPCFrameLowering.cpp.

References llvm::addFrameReference(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), DL, llvm::getKillRegState(), llvm::MachineFunction::getSubtarget(), MBB, MI, and TII.

Referenced by llvm::PPCFrameLowering::restoreCalleeSavedRegisters().

◆ spillsCR()

bool spillsCR ( const MachineFunction & MF )

static

Definition at line 252 of file PPCFrameLowering.cpp.

References llvm::MachineFunction::getInfo(), and llvm::PPCFunctionInfo::isCRSpilled().

Referenced by llvm::PPCFrameLowering::addScavengingSpillSlot(), and llvm::PPCFrameLowering::processFunctionBeforeFrameFinalized().

◆ STATISTIC() [1/3]

STATISTIC	(	NumPEReloadVSR	,
		"Number of reloads from vector in epilogue"	)

◆ STATISTIC() [2/3]

STATISTIC	(	NumPESpillVSR	,
		"Number of spills to vector in prologue"	)

◆ STATISTIC() [3/3]

STATISTIC	(	NumPrologProbed	,
		"Number of prologues probed"	)

Variable Documentation

◆ EnablePEVectorSpills

cl::opt< bool > EnablePEVectorSpills("ppc-enable-pe-vector-spills", cl::desc("Enable spills in prologue to vector registers."), cl::init(false), cl::Hidden)	(	"ppc-enable-pe-vector-spills"	,
		cl::desc("Enable spills in prologue to vector registers.")	,
		cl::init(false)	,
		cl::Hidden	)

static

Referenced by llvm::PPCFrameLowering::assignCalleeSavedSpillSlots().

Macros

Functions

Variables

Macro Definition Documentation

◆ CALLEE_SAVED_FPRS

◆ CALLEE_SAVED_GPRS32

◆ CALLEE_SAVED_GPRS64

◆ CALLEE_SAVED_VRS

◆ DEBUG_TYPE

Function Documentation

◆ computeBasePointerSaveOffset()

◆ computeCRSaveOffset()

◆ computeFramePointerSaveOffset()

◆ computeLinkageSize()

◆ computeReturnSaveOffset()

◆ computeTOCSaveOffset()

◆ hasNonRISpills()

◆ hasSpills()

◆ isCalleeSavedCR()

◆ MustSaveLR()

◆ restoreCRs()

◆ spillsCR()

◆ STATISTIC() [1/3]

◆ STATISTIC() [2/3]

◆ STATISTIC() [3/3]

Variable Documentation

◆ EnablePEVectorSpills