#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, unsigned 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}

◆ 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}

◆ 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}

◆ 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}

◆ DEBUG_TYPE

#define DEBUG_TYPE "framelowering"

Definition at line 33 of file PPCFrameLowering.cpp.

Function Documentation

◆ computeBasePointerSaveOffset()

static unsigned computeBasePointerSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 69 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::getTargetMachine(), llvm::PPCSubtarget::is32BitELFABI(), llvm::TargetMachine::isPositionIndependent(), and llvm::PPCSubtarget::isPPC64().

◆ computeCRSaveOffset()

static unsigned computeCRSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 78 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI(), and llvm::PPCSubtarget::isPPC64().

◆ computeFramePointerSaveOffset()

static unsigned computeFramePointerSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 56 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isPPC64().

◆ computeLinkageSize()

static unsigned computeLinkageSize ( const PPCSubtarget & STI )

static

Definition at line 61 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI(), llvm::PPCSubtarget::isELFv2ABI(), and llvm::PPCSubtarget::isPPC64().

◆ computeReturnSaveOffset()

static unsigned computeReturnSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 43 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI(), and llvm::PPCSubtarget::isPPC64().

◆ computeTOCSaveOffset()

static unsigned computeTOCSaveOffset ( const PPCSubtarget & STI )

static

Definition at line 50 of file PPCFrameLowering.cpp.

References llvm::PPCSubtarget::isAIXABI(), llvm::PPCSubtarget::isELFv2ABI(), and llvm::PPCSubtarget::isPPC64().

◆ hasNonRISpills()

static 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()

static 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()

static bool isCalleeSavedCR ( unsigned Reg )

static

Definition at line 2598 of file PPCFrameLowering.cpp.

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

◆ MustSaveLR()

static bool MustSaveLR	(	const MachineFunction &	MF,
		unsigned	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()

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

static

Definition at line 2530 of file PPCFrameLowering.cpp.

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

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

◆ spillsCR()

static 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