SIFrameLowering.cpp File Reference

#include "SIFrameLowering.h"
#include "AMDGPUSubtarget.h"
#include "SIInstrInfo.h"
#include "SIMachineFunctionInfo.h"
#include "SIRegisterInfo.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "llvm/CodeGen/LivePhysRegs.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/RegisterScavenging.h"

Include dependency graph for SIFrameLowering.cpp:

Go to the source code of this file.

Functions
static ArrayRef< MCPhysReg >	getAllSGPR128 (const GCNSubtarget &ST, const MachineFunction &MF)
static ArrayRef< MCPhysReg >	getAllSGPRs (const GCNSubtarget &ST, const MachineFunction &MF)
static unsigned	findScratchNonCalleeSaveRegister (MachineBasicBlock &MBB)
static bool	allStackObjectsAreDead (const MachineFrameInfo &MFI)

Function Documentation

allStackObjectsAreDead()

static bool allStackObjectsAreDead ( const MachineFrameInfo &  MFI )

static

Definition at line 645 of file SIFrameLowering.cpp.

References E, llvm::MachineFrameInfo::getObjectIndexBegin(), llvm::MachineFrameInfo::getObjectIndexEnd(), I, and llvm::MachineFrameInfo::isDeadObjectIndex().

Referenced by llvm::SIFrameLowering::hasFP(), and llvm::SIFrameLowering::processFunctionBeforeFrameFinalized().

findScratchNonCalleeSaveRegister()

static unsigned findScratchNonCalleeSaveRegister ( MachineBasicBlock &  MBB )

static

Definition at line 508 of file SIFrameLowering.cpp.

References llvm::LivePhysRegs::addLiveIns(), llvm::LivePhysRegs::addReg(), llvm::LivePhysRegs::available(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), llvm::GCNSubtarget::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), MRI, and Reg.

Referenced by llvm::SIFrameLowering::emitPrologue().

getAllSGPR128()

static ArrayRef<MCPhysReg> getAllSGPR128 ( const GCNSubtarget &  ST, const MachineFunction &  MF  )

static

Definition at line 26 of file SIFrameLowering.cpp.

References llvm::sys::path::begin(), llvm::GCNSubtarget::getMaxNumSGPRs(), and llvm::makeArrayRef().

Referenced by getAllSGPRs().

getAllSGPRs()

static ArrayRef<MCPhysReg> getAllSGPRs ( const GCNSubtarget &  ST, const MachineFunction &  MF  )

static

Definition at line 32 of file SIFrameLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineBasicBlock::addLiveIn(), llvm::MachineRegisterInfo::addLiveIn(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::sys::path::begin(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), llvm::ArrayRef< T >::drop_back(), llvm::AMDGPUFunctionArgInfo::FLAT_SCRATCH_INIT, llvm::GCNSubtarget::flatScratchIsPointer(), getAllSGPR128(), llvm::MachineFunction::getInfo(), llvm::GCNSubtarget::getInstrInfo(), llvm::GCNSubtarget::getMaxNumSGPRs(), llvm::SIMachineFunctionInfo::getNumPreloadedSGPRs(), llvm::SIMachineFunctionInfo::getPreloadedReg(), llvm::MachineFunction::getRegInfo(), llvm::SIInstrInfo::getRegisterInfo(), llvm::SIMachineFunctionInfo::getScratchRSrcReg(), llvm::SIMachineFunctionInfo::getScratchWaveOffsetReg(), llvm::SIMachineFunctionInfo::getStackPtrOffsetReg(), llvm::GCNSubtarget::hasSGPRInitBug(), I, llvm::MachineRegisterInfo::isAllocatable(), llvm::MachineRegisterInfo::isPhysRegUsed(), llvm::RegState::Kill, llvm::makeArrayRef(), MRI, Reg, llvm::MachineRegisterInfo::replaceRegWith(), llvm::SIRegisterInfo::reservedPrivateSegmentBufferReg(), llvm::SIRegisterInfo::reservedPrivateSegmentWaveByteOffsetReg(), llvm::SIMachineFunctionInfo::setScratchRSrcReg(), llvm::SIMachineFunctionInfo::setScratchWaveOffsetReg(), llvm::ArrayRef< T >::size(), llvm::ArrayRef< T >::slice(), llvm::ARM_MB::ST, TII, and TRI.