MachineSSAUpdater.cpp File Reference

#include "llvm/CodeGen/MachineSSAUpdater.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/Support/AlignOf.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Transforms/Utils/SSAUpdaterImpl.h"

Include dependency graph for MachineSSAUpdater.cpp:

Go to the source code of this file.

Classes
class	llvm::SSAUpdaterTraits< MachineSSAUpdater >
class	llvm::SSAUpdaterTraits< MachineSSAUpdater >::PHI_iterator
	Iterator for PHI operands. More...

Namespaces
	llvm
	List of target independent CodeGen pass IDs.

Typedefs
typedef DenseMap < MachineBasicBlock *, unsigned >	AvailableValsTy

Functions
static AvailableValsTy &	getAvailableVals (void *AV)
static unsigned	LookForIdenticalPHI (MachineBasicBlock *BB, SmallVectorImpl< std::pair< MachineBasicBlock *, unsigned > > &PredValues)
static MachineInstrBuilder	InsertNewDef (unsigned Opcode, MachineBasicBlock *BB, MachineBasicBlock::iterator I, const TargetRegisterClass *RC, MachineRegisterInfo *MRI, const TargetInstrInfo *TII)
static MachineBasicBlock *	findCorrespondingPred (const MachineInstr *MI, MachineOperand *U)

Typedef Documentation

typedef DenseMap<MachineBasicBlock*, unsigned> AvailableValsTy

Definition at line 32 of file MachineSSAUpdater.cpp.

Function Documentation

static MachineBasicBlock* findCorrespondingPred ( const MachineInstr *  MI, MachineOperand *  U  )

static

Definition at line 208 of file MachineSSAUpdater.cpp.

References llvm::MachineOperand::getMBB(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), and llvm_unreachable.

Referenced by llvm::MachineSSAUpdater::RewriteUse().

static AvailableValsTy& getAvailableVals ( void *  AV )

static

Definition at line 33 of file MachineSSAUpdater.cpp.

Referenced by llvm::MachineSSAUpdater::AddAvailableValue(), llvm::MachineSSAUpdater::HasValueForBlock(), and llvm::MachineSSAUpdater::Initialize().

static MachineInstrBuilder InsertNewDef ( unsigned  Opcode, MachineBasicBlock *  BB, MachineBasicBlock::iterator  I, const TargetRegisterClass *  RC, MachineRegisterInfo *  MRI, const TargetInstrInfo *  TII  )

static

InsertNewDef - Insert an empty PHI or IMPLICIT_DEF instruction which define a value of the given register class at the start of the specified basic block. It returns the virtual register defined by the instruction.

Definition at line 112 of file MachineSSAUpdater.cpp.

References llvm::BuildMI(), llvm::MachineRegisterInfo::createVirtualRegister(), and llvm::MCInstrInfo::get().

Referenced by llvm::SSAUpdaterTraits< MachineSSAUpdater >::CreateEmptyPHI(), llvm::SSAUpdaterTraits< MachineSSAUpdater >::GetUndefVal(), and llvm::MachineSSAUpdater::GetValueInMiddleOfBlock().

static unsigned LookForIdenticalPHI ( MachineBasicBlock *  BB, SmallVectorImpl< std::pair< MachineBasicBlock *, unsigned > > &  PredValues  )

static

Definition at line 79 of file MachineSSAUpdater.cpp.

References llvm::MachineBasicBlock::begin(), llvm::MachineBasicBlock::empty(), llvm::MachineBasicBlock::end(), and I.

Referenced by llvm::MachineSSAUpdater::GetValueInMiddleOfBlock().