RegAllocFast.cpp File Reference

#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/IndexedMap.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/SparseSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RegAllocCommon.h"
#include "llvm/CodeGen/RegAllocRegistry.h"
#include "llvm/CodeGen/RegisterClassInfo.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Pass.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <tuple>
#include <vector>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "regalloc"

Functions
	STATISTIC (NumStores, "Number of stores added")
	STATISTIC (NumLoads, "Number of loads added")
	STATISTIC (NumCoalesced, "Number of copies coalesced")
	INITIALIZE_PASS (RegAllocFast, "regallocfast", "Fast Register Allocator", false, false) bool RegAllocFast
static bool	dominates (InstrPosIndexes &PosIndexes, const MachineInstr &A, const MachineInstr &B)
static bool	isCoalescable (const MachineInstr &MI)
static bool	isTiedToNotUndef (const MachineOperand &MO)

Variables
static cl::opt< bool >	IgnoreMissingDefs ("rafast-ignore-missing-defs", cl::Hidden)
static RegisterRegAlloc	fastRegAlloc ("fast", "fast register allocator", createFastRegisterAllocator)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "regalloc"

Definition at line 50 of file RegAllocFast.cpp.

Function Documentation

dominates()

static bool dominates ( InstrPosIndexes &  PosIndexes, const MachineInstr &  A, const MachineInstr &  B  )

static

Definition at line 457 of file RegAllocFast.cpp.

References A, B, and LLVM_UNLIKELY.

Referenced by llvm::DominatorTreeBase< NodeT, IsPostDom >::dominates(), llvm::DominatorTree::dominates(), and llvm::DominatorTreeBase< NodeT, IsPostDom >::properlyDominates().

INITIALIZE_PASS()

INITIALIZE_PASS	(	RegAllocFast	,
		"regallocfast"	,
		"Fast Register Allocator"	,
		false	,
		false
	)

Definition at line 415 of file RegAllocFast.cpp.

References assert(), MRI, and TRI.

isCoalescable()

static bool isCoalescable ( const MachineInstr &  MI )

static

Definition at line 825 of file RegAllocFast.cpp.

References MI.

isTiedToNotUndef()

static bool isTiedToNotUndef ( const MachineOperand &  MO )

static

Definition at line 1337 of file RegAllocFast.cpp.

References llvm::MachineOperand::getParent(), llvm::MachineOperand::isTied(), llvm::MachineOperand::isUndef(), and MI.

STATISTIC() [1/3]

STATISTIC	(	NumCoalesced	,
		"Number of copies coalesced"
	)

STATISTIC() [2/3]

STATISTIC	(	NumLoads	,
		"Number of loads added"
	)

STATISTIC() [3/3]

STATISTIC	(	NumStores	,
		"Number of stores added"
	)

Variable Documentation

fastRegAlloc

RegisterRegAlloc fastRegAlloc("fast", "fast register allocator", createFastRegisterAllocator) ( "fast"  , "fast register allocator"  , createFastRegisterAllocator    )

static

IgnoreMissingDefs

cl::opt< bool > IgnoreMissingDefs("rafast-ignore-missing-defs", cl::Hidden) ( "rafast-ignore-missing-defs"  , cl::Hidden    )

static