#include "AArch64.h"
#include "AArch64MachineFunctionInfo.h"
#include "AArch64InstrInfo.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineLoopInfo.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"

Include dependency graph for AArch64StackTaggingPreRA.cpp:

Classes
struct	llvm::DenseMapInfo< SlotWithTag >

Namespaces
	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::ZeroOrMore, 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 34 of file AArch64StackTaggingPreRA.cpp.

Enumeration Type Documentation

◆ UncheckedLdStMode

enum UncheckedLdStMode

Enumerator
UncheckedNever
UncheckedSafe
UncheckedAlways

Definition at line 36 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 231 of file AArch64StackTaggingPreRA.cpp.

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

◆ isUncheckedLoadOrStoreOpcode()

static bool isUncheckedLoadOrStoreOpcode ( unsigned Opcode )

static

Definition at line 103 of file AArch64StackTaggingPreRA.cpp.

Variable Documentation

◆ ClFirstSlot

cl::opt<bool> ClFirstSlot("stack-tagging-first-slot-opt", cl::Hidden, cl::init(true), cl::ZeroOrMore, 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")))