AArch64StackTaggingPreRA.cpp File Reference

#include "AArch64.h"
#include "AArch64InstrInfo.h"
#include "AArch64MachineFunctionInfo.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/MachineTraceMetrics.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"

Go to the source code of this file.

Classes
struct	llvm::DenseMapInfo< SlotWithTag >

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

Macros
#define	DEBUG_TYPE   "aarch64-stack-tagging-pre-ra"

Enumerations
enum	UncheckedLdStMode { UncheckedNever , UncheckedSafe , UncheckedAlways }

Functions
	INITIALIZE_PASS_BEGIN (AArch64StackTaggingPreRA, "aarch64-stack-tagging-pre-ra", "AArch64 Stack Tagging PreRA Pass", false, false) INITIALIZE_PASS_END(AArch64StackTaggingPreRA
static bool	isUncheckedLoadOrStoreOpcode (unsigned Opcode)
static bool	isSlotPreAllocated (MachineFrameInfo *MFI, int FI)

Variables
cl::opt< UncheckedLdStMode >	ClUncheckedLdSt ("stack-tagging-unchecked-ld-st", cl::Hidden, cl::init(UncheckedSafe), cl::desc("Unconditionally apply unchecked-ld-st optimization (even for large " "stack frames, or in the presence of variable sized allocas)."), cl::values(clEnumValN(UncheckedNever, "never", "never apply unchecked-ld-st"), clEnumValN(UncheckedSafe, "safe", "apply unchecked-ld-st when the target is definitely within range"), clEnumValN(UncheckedAlways, "always", "always apply unchecked-ld-st")))
static cl::opt< bool >	ClFirstSlot ("stack-tagging-first-slot-opt", cl::Hidden, cl::init(true), cl::desc("Apply first slot optimization for stack tagging " "(eliminate ADDG Rt, Rn, 0, 0)."))
aarch64 stack tagging pre	ra
aarch64 stack tagging pre AArch64 Stack Tagging PreRA	Pass
aarch64 stack tagging pre AArch64 Stack Tagging PreRA	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "aarch64-stack-tagging-pre-ra"

Definition at line 30 of file AArch64StackTaggingPreRA.cpp.

Enumeration Type Documentation

UncheckedLdStMode

enum UncheckedLdStMode

Enumerator
UncheckedNever
UncheckedSafe
UncheckedAlways

Definition at line 32 of file AArch64StackTaggingPreRA.cpp.

Function Documentation

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	AArch64StackTaggingPreRA	,
		"aarch64-stack-tagging-pre-ra"	,
		"AArch64 Stack Tagging PreRA Pass"	,
		false	,
		false
	)

isSlotPreAllocated()

static bool isSlotPreAllocated ( MachineFrameInfo *  MFI, int  FI  )

static

Definition at line 225 of file AArch64StackTaggingPreRA.cpp.

References llvm::MachineFrameInfo::getUseLocalStackAllocationBlock(), and llvm::MachineFrameInfo::isObjectPreAllocated().

isUncheckedLoadOrStoreOpcode()

static bool isUncheckedLoadOrStoreOpcode ( unsigned  Opcode )

static

Definition at line 98 of file AArch64StackTaggingPreRA.cpp.

Variable Documentation

ClFirstSlot

cl::opt< bool > ClFirstSlot("stack-tagging-first-slot-opt", cl::Hidden, cl::init(true), cl::desc("Apply first slot optimization for stack tagging " "(eliminate ADDG Rt, Rn, 0, 0).")) ( "stack-tagging-first-slot-opt"  , cl::Hidden  , cl::init(true)  , cl::desc("Apply first slot optimization for stack tagging " "(eliminate ADDG Rt, Rn, 0, 0).")    )

static

ClUncheckedLdSt

cl::opt< UncheckedLdStMode > ClUncheckedLdSt("stack-tagging-unchecked-ld-st", cl::Hidden, cl::init(UncheckedSafe), cl::desc( "Unconditionally apply unchecked-ld-st optimization (even for large " "stack frames, or in the presence of variable sized allocas)."), cl::values( clEnumValN(UncheckedNever, "never", "never apply unchecked-ld-st"), clEnumValN( UncheckedSafe, "safe", "apply unchecked-ld-st when the target is definitely within range"), clEnumValN(UncheckedAlways, "always", "always apply unchecked-ld-st")))	(	"stack-tagging-unchecked-ld-st"	,
		cl::Hidden	,
		cl::init(UncheckedSafe)	,
		cl::desc( "Unconditionally apply unchecked-ld-st optimization (even for large " "stack frames, or in the presence of variable sized allocas).")	,
		cl::values( clEnumValN(UncheckedNever, "never", "never apply unchecked-ld-st"), clEnumValN( UncheckedSafe, "safe", "apply unchecked-ld-st when the target is definitely within range"), clEnumValN(UncheckedAlways, "always", "always apply unchecked-ld-st"))
	)

false

aarch64 stack tagging pre AArch64 Stack Tagging PreRA false

Definition at line 92 of file AArch64StackTaggingPreRA.cpp.

Pass

aarch64 stack tagging pre AArch64 Stack Tagging PreRA Pass

Definition at line 92 of file AArch64StackTaggingPreRA.cpp.

ra

aarch64 stack tagging pre ra

Definition at line 91 of file AArch64StackTaggingPreRA.cpp.