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.

Macros
#define	DEBUG_TYPE   "hexagon-nvj"

Functions
	STATISTIC (NumNVJGenerated, "Number of New Value Jump Instructions created")
	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 108 of file HexagonNewValueJump.cpp.

References assert(), canBeFeederToNewValueJump(), const, for(), if(), II, Reg, skip(), and TRI.

Referenced by canBeFeederToNewValueJump().

canCompareBeNewValueJump()

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 229 of file HexagonNewValueJump.cpp.

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

commonChecksToProhibitNewValueJump()

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

static

Definition at line 191 of file HexagonNewValueJump.cpp.

Referenced by canCompareBeNewValueJump().

getNewValueJumpOpcode()

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

static

Definition at line 326 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	)

References INITIALIZE_PASS_DEPENDENCY.

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 104 of file HexagonNewValueJump.cpp.

NewValueJump

hexagon Hexagon NewValueJump

Definition at line 104 of file HexagonNewValueJump.cpp.

nvj

hexagon nvj

Definition at line 103 of file HexagonNewValueJump.cpp.