X86VZeroUpper.cpp File Reference

#include "X86.h"
#include "X86InstrInfo.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"

Include dependency graph for X86VZeroUpper.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "x86-vzeroupper"

Functions
	STATISTIC (NumVZU,"Number of vzeroupper instructions inserted")
static bool	isYmmReg (unsigned Reg)
static bool	isZmmReg (unsigned Reg)
static bool	checkFnHasLiveInYmm (MachineRegisterInfo &MRI)
static bool	clobbersAllYmmRegs (const MachineOperand &MO)
static bool	hasYmmReg (MachineInstr *MI)

Macro Definition Documentation

#define DEBUG_TYPE   "x86-vzeroupper"

Definition at line 17 of file X86VZeroUpper.cpp.

Function Documentation

static bool checkFnHasLiveInYmm ( MachineRegisterInfo &  MRI )

static

Definition at line 115 of file X86VZeroUpper.cpp.

References I, isYmmReg(), isZmmReg(), llvm::MachineRegisterInfo::livein_begin(), and llvm::MachineRegisterInfo::livein_end().

static bool clobbersAllYmmRegs ( const MachineOperand &  MO )

static

Definition at line 124 of file X86VZeroUpper.cpp.

References llvm::MachineOperand::clobbersPhysReg().

Referenced by hasYmmReg().

static bool hasYmmReg ( MachineInstr *  MI )

static

Definition at line 136 of file X86VZeroUpper.cpp.

References clobbersAllYmmRegs(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineInstr::isCall(), llvm::MachineOperand::isDebug(), llvm::MachineOperand::isReg(), llvm::MachineOperand::isRegMask(), and isYmmReg().

static bool isYmmReg ( unsigned  Reg )

static

Definition at line 107 of file X86VZeroUpper.cpp.

Referenced by checkFnHasLiveInYmm(), and hasYmmReg().

static bool isZmmReg ( unsigned  Reg )

static

Definition at line 111 of file X86VZeroUpper.cpp.

Referenced by checkFnHasLiveInYmm().

STATISTIC	(	NumVZU	,
		"Number of vzeroupper instructions inserted"
	)