AArch64Subtarget.cpp File Reference

#include "AArch64Subtarget.h"
#include "AArch64.h"
#include "AArch64InstrInfo.h"
#include "AArch64PBQPRegAlloc.h"
#include "AArch64TargetMachine.h"
#include "GISel/AArch64CallLowering.h"
#include "GISel/AArch64LegalizerInfo.h"
#include "GISel/AArch64RegisterBankInfo.h"
#include "MCTargetDesc/AArch64AddressingModes.h"
#include "llvm/CodeGen/GlobalISel/InstructionSelect.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineScheduler.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/Support/SipHash.h"
#include "llvm/TargetParser/AArch64TargetParser.h"
#include "AArch64GenSubtargetInfo.inc"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "aarch64-subtarget"
#define	GET_SUBTARGETINFO_CTOR
#define	GET_SUBTARGETINFO_TARGET_DESC

Functions
static unsigned	getMOVKShiftImm (const MachineInstr &MI)
	Returns a MOVK's shifter operand, or 0 otherwise.
static bool	fusesMOVImmPairImpl (const AArch64Subtarget &ST, bool HasFirst, unsigned FirstOpc, unsigned FirstShift, unsigned SecondOpc, unsigned SecondShift)
	HasFirst is false when the 1st instruction is a wildcard.

Variables
static cl::opt< bool >	EnableEarlyIfConvert ("aarch64-early-ifcvt", cl::desc("Enable the early if " "converter pass"), cl::init(true), cl::Hidden)
static cl::opt< bool >	UseAddressTopByteIgnored ("aarch64-use-tbi", cl::desc("Assume that top byte of " "an address is ignored"), cl::init(false), cl::Hidden)
static cl::opt< bool >	MachOUseNonLazyBind ("aarch64-macho-enable-nonlazybind", cl::desc("Call nonlazybind functions via direct GOT load for Mach-O"), cl::Hidden)
static cl::opt< bool >	UseAA ("aarch64-use-aa", cl::init(true), cl::desc("Enable the use of AA during codegen."))
static cl::opt< unsigned >	OverrideVectorInsertExtractBaseCost ("aarch64-insert-extract-base-cost", cl::desc("Base cost of vector insert/extract element"), cl::Hidden)
static cl::list< std::string >	ReservedRegsForRA ("reserve-regs-for-regalloc", cl::desc("Reserve physical " "registers, so they can't be used by register allocator. " "Should only be used for testing register allocator."), cl::CommaSeparated, cl::Hidden)
static cl::opt< AArch64PAuth::AuthCheckMethod >	AuthenticatedLRCheckMethod ("aarch64-authenticated-lr-check-method", cl::Hidden, cl::desc("Override the variant of check applied " "to authenticated LR during tail call"), cl::values(AUTH_CHECK_METHOD_CL_VALUES_LR))
static cl::opt< unsigned >	AArch64MinimumJumpTableEntries ("aarch64-min-jump-table-entries", cl::init(10), cl::Hidden, cl::desc("Set minimum number of entries to use a jump table on AArch64"))
static cl::opt< unsigned >	AArch64StreamingHazardSize ("aarch64-streaming-hazard-size", cl::desc("Hazard size for streaming mode memory accesses. 0 = disabled."), cl::init(0), cl::Hidden)
static cl::alias	AArch64StreamingStackHazardSize ("aarch64-stack-hazard-size", cl::desc("alias for -aarch64-streaming-hazard-size"), cl::aliasopt(AArch64StreamingHazardSize))
static cl::opt< unsigned >	VScaleForTuningOpt ("sve-vscale-for-tuning", cl::Hidden, cl::desc("Force a vscale for tuning factor for SVE"))
static cl::opt< bool >	EnableSubregLivenessTracking ("aarch64-enable-subreg-liveness-tracking", cl::init(false), cl::Hidden, cl::desc("Enable subreg liveness tracking"))
static cl::opt< bool >	UseScalarIncVL ("sve-use-scalar-inc-vl", cl::init(false), cl::Hidden, cl::desc("Prefer add+cnt over addvl/inc/dec"))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "aarch64-subtarget"

Definition at line 32 of file AArch64Subtarget.cpp.

GET_SUBTARGETINFO_CTOR

#define GET_SUBTARGETINFO_CTOR

Definition at line 34 of file AArch64Subtarget.cpp.

GET_SUBTARGETINFO_TARGET_DESC

#define GET_SUBTARGETINFO_TARGET_DESC

Definition at line 35 of file AArch64Subtarget.cpp.

Function Documentation

fusesMOVImmPairImpl()

bool fusesMOVImmPairImpl ( const AArch64Subtarget & ST, bool HasFirst, unsigned FirstOpc, unsigned FirstShift, unsigned SecondOpc, unsigned SecondShift )

static

HasFirst is false when the 1st instruction is a wildcard.

Definition at line 664 of file AArch64Subtarget.cpp.

References assert().

Referenced by llvm::AArch64Subtarget::fusesMOVImmPair(), and llvm::AArch64Subtarget::fusesMOVImmPair().

getMOVKShiftImm()

unsigned getMOVKShiftImm ( const MachineInstr & MI )

static

Returns a MOVK's shifter operand, or 0 otherwise.

Definition at line 656 of file AArch64Subtarget.cpp.

References MI, and Opc.

Referenced by llvm::AArch64Subtarget::fusesMOVImmPair().

Variable Documentation

AArch64MinimumJumpTableEntries

cl::opt< unsigned > AArch64MinimumJumpTableEntries("aarch64-min-jump-table-entries", cl::init(10), cl::Hidden, cl::desc("Set minimum number of entries to use a jump table on AArch64")) ( "aarch64-min-jump-table-entries" , cl::init(10) , cl::Hidden , cl::desc("Set minimum number of entries to use a jump table on AArch64")  )

static

AArch64StreamingHazardSize

cl::opt< unsigned > AArch64StreamingHazardSize("aarch64-streaming-hazard-size", cl::desc("Hazard size for streaming mode memory accesses. 0 = disabled."), cl::init(0), cl::Hidden) ( "aarch64-streaming-hazard-size" , cl::desc("Hazard size for streaming mode memory accesses. 0 = disabled.") , cl::init(0) , cl::Hidden  )

static

Referenced by llvm::AArch64Subtarget::AArch64Subtarget().

AArch64StreamingStackHazardSize

cl::alias AArch64StreamingStackHazardSize("aarch64-stack-hazard-size", cl::desc("alias for -aarch64-streaming-hazard-size"), cl::aliasopt(AArch64StreamingHazardSize)) ( "aarch64-stack-hazard-size" , cl::desc("alias for -aarch64-streaming-hazard-size") , cl::aliasopt(AArch64StreamingHazardSize)  )

static

AuthenticatedLRCheckMethod

cl::opt< AArch64PAuth::AuthCheckMethod > AuthenticatedLRCheckMethod("aarch64-authenticated-lr-check-method", cl::Hidden, cl::desc("Override the variant of check applied " "to authenticated LR during tail call"), cl::values(AUTH_CHECK_METHOD_CL_VALUES_LR)) ( "aarch64-authenticated-lr-check-method" , cl::Hidden , cl::desc("Override the variant of check applied " "to authenticated LR during tail call") , cl::values(AUTH_CHECK_METHOD_CL_VALUES_LR)  )

static

Referenced by llvm::AArch64Subtarget::getAuthenticatedLRCheckMethod().

EnableEarlyIfConvert

cl::opt< bool > EnableEarlyIfConvert("aarch64-early-ifcvt", cl::desc("Enable the early if " "converter pass"), cl::init(true), cl::Hidden) ( "aarch64-early-ifcvt" , cl::desc("Enable the early if " "converter pass") , cl::init(true) , cl::Hidden  )

static

Referenced by llvm::AArch64Subtarget::enableEarlyIfConversion().

EnableSubregLivenessTracking

cl::opt< bool > EnableSubregLivenessTracking("aarch64-enable-subreg-liveness-tracking", cl::init(false), cl::Hidden, cl::desc("Enable subreg liveness tracking")) ( "aarch64-enable-subreg-liveness-tracking" , cl::init(false) , cl::Hidden , cl::desc("Enable subreg liveness tracking")  )

static

Referenced by llvm::AArch64Subtarget::AArch64Subtarget().

MachOUseNonLazyBind

cl::opt< bool > MachOUseNonLazyBind("aarch64-macho-enable-nonlazybind", cl::desc("Call nonlazybind functions via direct GOT load for Mach-O"), cl::Hidden) ( "aarch64-macho-enable-nonlazybind" , cl::desc("Call nonlazybind functions via direct GOT load for Mach-O") , cl::Hidden  )

static

Referenced by llvm::AArch64Subtarget::classifyGlobalFunctionReference().

OverrideVectorInsertExtractBaseCost

cl::opt< unsigned > OverrideVectorInsertExtractBaseCost("aarch64-insert-extract-base-cost", cl::desc("Base cost of vector insert/extract element"), cl::Hidden) ( "aarch64-insert-extract-base-cost" , cl::desc("Base cost of vector insert/extract element") , cl::Hidden  )

static

Referenced by llvm::AArch64Subtarget::getVectorInsertExtractBaseCost().

ReservedRegsForRA

cl::list< std::string > ReservedRegsForRA("reserve-regs-for-regalloc", cl::desc("Reserve physical " "registers, so they can't be used by register allocator. " "Should only be used for testing register allocator."), cl::CommaSeparated, cl::Hidden) ( "reserve-regs-for-regalloc" , cl::desc("Reserve physical " "registers, so they can't be used by register allocator. " "Should only be used for testing register allocator.") , cl::CommaSeparated , cl::Hidden  )

static

Referenced by llvm::AArch64Subtarget::AArch64Subtarget().

UseAA

cl::opt< bool > UseAA("aarch64-use-aa", cl::init(true), cl::desc("Enable the use of AA during codegen.")) ( "aarch64-use-aa" , cl::init(true) , cl::desc("Enable the use of AA during codegen.")  )

static

Referenced by llvm::ScheduleDAGInstrs::buildSchedGraph(), llvm::AArch64Subtarget::useAA(), llvm::GCNSubtarget::useAA(), llvm::LoongArchSubtarget::useAA(), and llvm::RISCVSubtarget::useAA().

UseAddressTopByteIgnored

cl::opt< bool > UseAddressTopByteIgnored("aarch64-use-tbi", cl::desc("Assume that top byte of " "an address is ignored"), cl::init(false), cl::Hidden) ( "aarch64-use-tbi" , cl::desc("Assume that top byte of " "an address is ignored") , cl::init(false) , cl::Hidden  )

static

Referenced by llvm::AArch64Subtarget::supportsAddressTopByteIgnored().

UseScalarIncVL

cl::opt< bool > UseScalarIncVL("sve-use-scalar-inc-vl", cl::init(false), cl::Hidden, cl::desc("Prefer add+cnt over addvl/inc/dec")) ( "sve-use-scalar-inc-vl" , cl::init(false) , cl::Hidden , cl::desc("Prefer add+cnt over addvl/inc/dec")  )

static

Referenced by llvm::AArch64Subtarget::useScalarIncVL().

VScaleForTuningOpt

cl::opt< unsigned > VScaleForTuningOpt("sve-vscale-for-tuning", cl::Hidden, cl::desc("Force a vscale for tuning factor for SVE")) ( "sve-vscale-for-tuning" , cl::Hidden , cl::desc("Force a vscale for tuning factor for SVE")  )

static