#include "llvm/CodeGen/MachineSSAUpdater.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/Utils/SSAUpdaterImpl.h"
#include <utility>

Classes
class	llvm::SSAUpdaterTraits< MachineSSAUpdater >
	SSAUpdaterTraits<MachineSSAUpdater> - Traits for the SSAUpdaterImpl template, specialized for MachineSSAUpdater. More...

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

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Macros
#define	DEBUG_TYPE "machine-ssaupdater"

Typedefs
using	AvailableValsTy = DenseMap< MachineBasicBlock *, Register >

Functions
static AvailableValsTy &	getAvailableVals (void *AV)

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

static MachineInstrBuilder	InsertNewDef (unsigned Opcode, MachineBasicBlock BB, MachineBasicBlock::iterator I, MachineRegisterInfo::VRegAttrs RegAttrs, MachineRegisterInfo MRI, const TargetInstrInfo *TII)
	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.

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

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE "machine-ssaupdater"

Definition at line 35 of file MachineSSAUpdater.cpp.

Typedef Documentation

◆ AvailableValsTy

using AvailableValsTy = DenseMap<MachineBasicBlock *, Register>

Definition at line 37 of file MachineSSAUpdater.cpp.

Function Documentation

◆ findCorrespondingPred()

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

static

Definition at line 217 of file MachineSSAUpdater.cpp.

References llvm_unreachable, and MI.

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

◆ getAvailableVals()

static AvailableValsTy & getAvailableVals ( void * AV )

static

Definition at line 39 of file MachineSSAUpdater.cpp.

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

◆ InsertNewDef()

static MachineInstrBuilder InsertNewDef	(	unsigned	Opcode,
		MachineBasicBlock *	BB,
		MachineBasicBlock::iterator	I,
		MachineRegisterInfo::VRegAttrs	RegAttrs,
		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 114 of file MachineSSAUpdater.cpp.

References llvm::BuildMI(), I, MRI, and TII.

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