HexagonNewValueJump.cpp File Reference

#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>

Include dependency graph for HexagonNewValueJump.cpp:

Go to the source code of this file.

Namespaces
	llvm
	This class represents lattice values for constants.

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::ZeroOrMore, cl::init(false), 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 117 of file HexagonNewValueJump.cpp.

References assert(), contains(), llvm::sys::path::end(), llvm::AMDGPUISD::KILL, and Reg.

Referenced by getNewValueJumpOpcode().

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 238 of file HexagonNewValueJump.cpp.

References commonChecksToProhibitNewValueJump(), llvm::sys::path::end(), llvm::MachineOperand::getImm(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::MachineRegisterInfo::getVRegDef(), llvm::MachineOperand::isImm(), llvm::TargetRegisterInfo::isPhysicalRegister(), MI, and MRI.

Referenced by getNewValueJumpOpcode().

commonChecksToProhibitNewValueJump()

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

static

Definition at line 200 of file HexagonNewValueJump.cpp.

References llvm::AMDGPUISD::KILL.

Referenced by canCompareBeNewValueJump(), and getNewValueJumpOpcode().

getNewValueJumpOpcode()

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

static

Definition at line 335 of file HexagonNewValueJump.cpp.

References llvm::MachineInstrBuilder::addMBB(), assert(), llvm::MachineBasicBlock::begin(), llvm::MachineFunction::begin(), llvm::BuildMI(), canBeFeederToNewValueJump(), canCompareBeNewValueJump(), commonChecksToProhibitNewValueJump(), DbgNVJCount, llvm::dbgs(), DisableNewValueJumps, llvm::MachineBasicBlock::dump(), llvm::MachineInstr::dump(), E, llvm::MachineBasicBlock::end(), llvm::MachineFunction::end(), llvm::MachineInstr::eraseFromParent(), llvm::MDNode::get(), llvm::MachineInstr::getDebugLoc(), llvm::MachineInstr::getDesc(), llvm::MachineBranchProbabilityInfo::getEdgeProbability(), llvm::MachineFunction::getFunction(), llvm::MachineOperand::getImm(), llvm::TargetSubtargetInfo::getInstrInfo(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::getKillRegState(), llvm::MachineOperand::getMBB(), llvm::MachineFunction::getName(), llvm::MachineBasicBlock::getNumber(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), I, llvm::MCInstrDesc::isCompare(), llvm::MachineInstr::isDebugInstr(), llvm::MachineOperand::isDef(), llvm::MachineOperand::isKill(), llvm::MachineBasicBlock::isLiveIn(), llvm::MachineOperand::isMBB(), llvm::TargetRegisterInfo::isPhysicalRegister(), llvm::MachineOperand::isReg(), LLVM_DEBUG, llvm_unreachable, MI, llvm::MachineInstr::operands(), llvm::MachineOperand::setIsKill(), SI, llvm::MachineBasicBlock::splice(), llvm::MachineBasicBlock::succ_begin(), llvm::MachineBasicBlock::succ_end(), and llvm::HexagonSubtarget::useNewValueJumps().

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"))

static

Referenced by getNewValueJumpOpcode().

DisableNewValueJumps

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

static

Referenced by getNewValueJumpOpcode().

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 112 of file HexagonNewValueJump.cpp.