X86IndirectBranchTracking.cpp File Reference

#include "X86.h"
#include "X86InstrInfo.h"
#include "X86Subtarget.h"
#include "X86TargetMachine.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/IR/Module.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "x86-indirect-branch-tracking"

Functions
	STATISTIC (NumEndBranchAdded, "Number of ENDBR instructions added")
	INITIALIZE_PASS (X86IndirectBranchTrackingLegacy, DEBUG_TYPE, "X86 Indirect Branch Tracking", false, false) FunctionPass *llvm
static bool	IsCallReturnTwice (llvm::MachineOperand &MOp)
static bool	needsPrologueENDBR (MachineFunction &MF, const Module *M)
static bool	runIndirectBranchTracking (MachineFunction &MF)

Variables
cl::opt< bool >	IndirectBranchTracking ("x86-indirect-branch-tracking", cl::init(false), cl::Hidden, cl::desc("Enable X86 indirect branch tracking pass."))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "x86-indirect-branch-tracking"

Definition at line 30 of file X86IndirectBranchTracking.cpp.

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	X86IndirectBranchTrackingLegacy	,
		DEBUG_TYPE	,
		"X86 Indirect Branch Tracking"	,
		false	,
		false	)

Definition at line 80 of file X86IndirectBranchTracking.cpp.

References llvm::createX86IndirectBranchTrackingLegacyPass(), and DEBUG_TYPE.

IsCallReturnTwice()

bool IsCallReturnTwice ( llvm::MachineOperand & MOp )

static

Definition at line 87 of file X86IndirectBranchTracking.cpp.

References llvm::dyn_cast(), llvm::MachineOperand::getGlobal(), and llvm::MachineOperand::isGlobal().

Referenced by runIndirectBranchTracking().

needsPrologueENDBR()

bool needsPrologueENDBR ( MachineFunction & MF, const Module * M )

static

Definition at line 98 of file X86IndirectBranchTracking.cpp.

References F, llvm::TargetMachine::getCodeModel(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getTarget(), and llvm::CodeModel::Large.

Referenced by runIndirectBranchTracking().

runIndirectBranchTracking()

bool runIndirectBranchTracking ( MachineFunction & MF )

static

Definition at line 114 of file X86IndirectBranchTracking.cpp.

References llvm::MachineFunction::begin(), Changed, llvm::TargetOptions::ExceptionModel, llvm::MachineFunction::getFunction(), llvm::GlobalValue::getParent(), llvm::MachineFunction::getTarget(), llvm::MachineFunction::hasCallSiteLandingPad(), I, IndirectBranchTracking, IsCallReturnTwice(), llvm::X86TargetMachine::isJIT(), MBB, needsPrologueENDBR(), llvm::TargetMachine::Options, and llvm::SjLj.

Referenced by llvm::X86IndirectBranchTrackingPass::run().

STATISTIC()

STATISTIC	(	NumEndBranchAdded	,
		"Number of ENDBR instructions added"	)

Variable Documentation

IndirectBranchTracking

cl::opt< bool > IndirectBranchTracking("x86-indirect-branch-tracking", cl::init(false), cl::Hidden, cl::desc("Enable X86 indirect branch tracking pass."))	(	"x86-indirect-branch-tracking"	,
		cl::init(false)	,
		cl::Hidden	,
		cl::desc("Enable X86 indirect branch tracking pass.")	)

Referenced by runIndirectBranchTracking().