HexagonNewValueJump.cpp File Reference

#include "llvm/InitializePasses.h"
#include "Hexagon.h"
#include "HexagonInstrInfo.h"
#include "HexagonRegisterInfo.h"
#include "HexagonSubtarget.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineBranchProbabilityInfo.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/TargetOpcodes.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/Pass.h"
#include "llvm/Support/BranchProbability.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdint>
#include <iterator>

Go to the source code of this file.

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

Macros
#define	DEBUG_TYPE   "hexagon-nvj"

Functions
	STATISTIC (NumNVJGenerated, "Number of New Value Jump Instructions created")
FunctionPass *	llvm::createHexagonNewValueJump ()
void	llvm::initializeHexagonNewValueJumpPass (PassRegistry &)
	INITIALIZE_PASS_BEGIN (HexagonNewValueJump, "hexagon-nvj", "Hexagon NewValueJump", false, false) INITIALIZE_PASS_END(HexagonNewValueJump
hexagon Hexagon static false bool	canBeFeederToNewValueJump (const HexagonInstrInfo *QII, const TargetRegisterInfo *TRI, MachineBasicBlock::iterator II, MachineBasicBlock::iterator end, MachineBasicBlock::iterator skip, MachineFunction &MF)
static bool	commonChecksToProhibitNewValueJump (bool afterRA, MachineBasicBlock::iterator MII)
static bool	canCompareBeNewValueJump (const HexagonInstrInfo *QII, const TargetRegisterInfo *TRI, MachineBasicBlock::iterator II, unsigned pReg, bool secondReg, bool optLocation, MachineBasicBlock::iterator end, MachineFunction &MF)
static unsigned	getNewValueJumpOpcode (MachineInstr *MI, int reg, bool secondRegNewified, MachineBasicBlock *jmpTarget, const MachineBranchProbabilityInfo *MBPI)

Variables
static cl::opt< int >	DbgNVJCount ("nvj-count", cl::init(-1), cl::Hidden, cl::desc("Maximum number of predicated jumps to be converted to " "New Value Jump"))
static cl::opt< bool >	DisableNewValueJumps ("disable-nvjump", cl::Hidden, cl::desc("Disable New Value Jumps"))
hexagon	nvj
hexagon Hexagon	NewValueJump
hexagon Hexagon	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "hexagon-nvj"

Definition at line 55 of file HexagonNewValueJump.cpp.

Function Documentation

canBeFeederToNewValueJump()

hexagon Hexagon static false bool canBeFeederToNewValueJump ( const HexagonInstrInfo *  QII, const TargetRegisterInfo *  TRI, MachineBasicBlock::iterator  II, MachineBasicBlock::iterator  end, MachineBasicBlock::iterator  skip, MachineFunction &  MF  )

static

Definition at line 116 of file HexagonNewValueJump.cpp.

References assert(), contains(), II, skip(), and TRI.

canCompareBeNewValueJump()

static bool canCompareBeNewValueJump ( const HexagonInstrInfo *  QII, const TargetRegisterInfo *  TRI, MachineBasicBlock::iterator  II, unsigned  pReg, bool  secondReg, bool  optLocation, MachineBasicBlock::iterator  end, MachineFunction &  MF  )

static

Definition at line 237 of file HexagonNewValueJump.cpp.

References commonChecksToProhibitNewValueJump(), llvm::MachineOperand::getImm(), llvm::MachineInstr::getOpcode(), llvm::MachineFunction::getRegInfo(), II, llvm::MachineOperand::isImm(), llvm::Register::isPhysicalRegister(), MI, MRI, and TRI.

commonChecksToProhibitNewValueJump()

static bool commonChecksToProhibitNewValueJump ( bool  afterRA, MachineBasicBlock::iterator  MII  )

static

Definition at line 199 of file HexagonNewValueJump.cpp.

Referenced by canCompareBeNewValueJump().

getNewValueJumpOpcode()

static unsigned getNewValueJumpOpcode ( MachineInstr *  MI, int  reg, bool  secondRegNewified, MachineBasicBlock *  jmpTarget, const MachineBranchProbabilityInfo *  MBPI  )

static

Definition at line 334 of file HexagonNewValueJump.cpp.

References llvm::MachineBranchProbabilityInfo::getEdgeProbability(), llvm_unreachable, and MI.

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	HexagonNewValueJump	,
		"hexagon-nvj"	,
		"Hexagon NewValueJump"	,
		false	,
		false
	)

STATISTIC()

STATISTIC	(	NumNVJGenerated	,
		"Number of New Value Jump Instructions created"
	)

Variable Documentation

DbgNVJCount

cl::opt< int > DbgNVJCount("nvj-count", cl::init(-1), cl::Hidden, cl::desc("Maximum number of predicated jumps to be converted to " "New Value Jump")) ( "nvj-count"  , cl::init(-1)  , cl::Hidden  , cl::desc("Maximum number of predicated jumps to be converted to " "New Value Jump")    )

static

DisableNewValueJumps

cl::opt< bool > DisableNewValueJumps("disable-nvjump", cl::Hidden, cl::desc("Disable New Value Jumps")) ( "disable-nvjump"  , cl::Hidden  , cl::desc("Disable New Value Jumps")    )

static

false

hexagon Hexagon false

Definition at line 112 of file HexagonNewValueJump.cpp.

NewValueJump

hexagon Hexagon NewValueJump

Definition at line 112 of file HexagonNewValueJump.cpp.

nvj

hexagon nvj

Definition at line 111 of file HexagonNewValueJump.cpp.