llvm::X86 Namespace Reference

Define some predicates that are used for node matching. More...

Enumerations
enum	ProcessorVendors : unsigned { VENDOR_DUMMY, VENDOR_OTHER }
enum	ProcessorTypes : unsigned { CPU_TYPE_DUMMY, CPU_TYPE_MAX }
enum	ProcessorSubtypes : unsigned { CPU_SUBTYPE_DUMMY, CPU_SUBTYPE_MAX }
enum	ProcessorFeatures
enum	{   BX_SI = 500, BX_DI = 501, BP_SI = 502, BP_DI = 503,   sib = 504, sib64 = 505 }
enum	{   AddrBaseReg = 0, AddrScaleAmt = 1, AddrIndexReg = 2, AddrDisp = 3,   AddrSegmentReg = 4, AddrNumOperands = 5 }
enum	STATIC_ROUNDING {   TO_NEAREST_INT = 0, TO_NEG_INF = 1, TO_POS_INF = 2, TO_ZERO = 3,   CUR_DIRECTION = 4 }
	AVX512 static rounding constants. More...
enum	IPREFIXES {   IP_NO_PREFIX = 0, IP_HAS_OP_SIZE = 1, IP_HAS_AD_SIZE = 2, IP_HAS_REPEAT_NE = 4,   IP_HAS_REPEAT = 8, IP_HAS_LOCK = 16, NO_SCHED_INFO = 32, IP_HAS_NOTRACK = 64 }
	The constants to describe instr prefixes if there are. More...
enum	Fixups {   reloc_riprel_4byte = FirstTargetFixupKind, reloc_riprel_4byte_movq_load, reloc_riprel_4byte_relax, reloc_riprel_4byte_relax_rex,   reloc_signed_4byte, reloc_signed_4byte_relax, reloc_global_offset_table, reloc_global_offset_table8,   reloc_branch_4byte_pcrel, LastTargetFixupKind, NumTargetFixupKinds = LastTargetFixupKind - FirstTargetFixupKind }
enum	AsmComments { AC_EVEX_2_VEX = MachineInstr::TAsmComments }
enum	CondCode {   COND_A = 0, COND_AE = 1, COND_B = 2, COND_BE = 3,   COND_E = 4, COND_G = 5, COND_GE = 6, COND_L = 7,   COND_LE = 8, COND_NE = 9, COND_NO = 10, COND_NP = 11,   COND_NS = 12, COND_O = 13, COND_P = 14, COND_S = 15,   LAST_VALID_COND = COND_S, COND_NE_OR_P, COND_E_AND_NP, COND_INVALID }

Functions
unsigned	GetCondBranchFromCond (CondCode CC)
std::pair< CondCode, bool >	getX86ConditionCode (CmpInst::Predicate Predicate)
	Return a pair of condition code for the given predicate and whether the instruction operands should be swaped to match the condition code. More...
unsigned	getSETFromCond (CondCode CC, bool HasMemoryOperand=false)
	Return a set opcode for the given condition and whether it has a memory operand. More...
unsigned	getCMovFromCond (CondCode CC, unsigned RegBytes, bool HasMemoryOperand=false)
	Return a cmov opcode for the given condition, register size in bytes, and operand type. More...
CondCode	getCondFromBranchOpc (unsigned Opc)
CondCode	getCondFromSETOpc (unsigned Opc)
	Return condition code of a SET opcode. More...
CondCode	getCondFromCMovOpc (unsigned Opc)
	Return condition code of a CMov opcode. More...
CondCode	GetOppositeBranchCondition (CondCode CC)
	GetOppositeBranchCondition - Return the inverse of the specified cond, e.g. More...
unsigned	getVPCMPImmForCond (ISD::CondCode CC)
	Get the VPCMP immediate for the given condition. More...
unsigned	getSwappedVPCMPImm (unsigned Imm)
	Get the VPCMP immediate if the opcodes are swapped. More...
unsigned	getSwappedVPCOMImm (unsigned Imm)
	Get the VPCOM immediate if the opcodes are swapped. More...
bool	isZeroNode (SDValue Elt)
	Returns true if Elt is a constant zero or floating point constant +0.0. More...
bool	isOffsetSuitableForCodeModel (int64_t Offset, CodeModel::Model M, bool hasSymbolicDisplacement=true)
	Returns true of the given offset can be fit into displacement field of the instruction. More...
bool	isCalleePop (CallingConv::ID CallingConv, bool is64Bit, bool IsVarArg, bool GuaranteeTCO)
	Determines whether the callee is required to pop its own arguments. More...
FastISel *	createFastISel (FunctionLoweringInfo &funcInfo, const TargetLibraryInfo *libInfo)

Detailed Description

Define some predicates that are used for node matching.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
BX_SI
BX_DI
BP_SI
BP_DI
sib
sib64

Definition at line 114 of file X86Disassembler.cpp.

anonymous enum

anonymous enum

Enumerator
AddrBaseReg
AddrScaleAmt
AddrIndexReg
AddrDisp
AddrSegmentReg	AddrSegmentReg - The operand # of the segment in the memory operand.
AddrNumOperands	AddrNumOperands - Total number of operands in a memory reference.

Definition at line 32 of file X86BaseInfo.h.

AsmComments

enum llvm::X86::AsmComments

Enumerator
AC_EVEX_2_VEX

Definition at line 34 of file X86InstrInfo.h.

CondCode

enum llvm::X86::CondCode

Enumerator
COND_A
COND_AE
COND_B
COND_BE
COND_E
COND_G
COND_GE
COND_L
COND_LE
COND_NE
COND_NO
COND_NP
COND_NS
COND_O
COND_P
COND_S
LAST_VALID_COND
COND_NE_OR_P
COND_E_AND_NP
COND_INVALID

Definition at line 41 of file X86InstrInfo.h.

Fixups

enum llvm::X86::Fixups

Enumerator
reloc_riprel_4byte
reloc_riprel_4byte_movq_load
reloc_riprel_4byte_relax
reloc_riprel_4byte_relax_rex
reloc_signed_4byte
reloc_signed_4byte_relax
reloc_global_offset_table
reloc_global_offset_table8
reloc_branch_4byte_pcrel
LastTargetFixupKind
NumTargetFixupKinds

Definition at line 17 of file X86FixupKinds.h.

IPREFIXES

enum llvm::X86::IPREFIXES

The constants to describe instr prefixes if there are.

Enumerator
IP_NO_PREFIX
IP_HAS_OP_SIZE
IP_HAS_AD_SIZE
IP_HAS_REPEAT_NE
IP_HAS_REPEAT
IP_HAS_LOCK
NO_SCHED_INFO
IP_HAS_NOTRACK

Definition at line 56 of file X86BaseInfo.h.

ProcessorFeatures

enum llvm::X86::ProcessorFeatures

Definition at line 69 of file TargetParser.h.

ProcessorSubtypes

enum llvm::X86::ProcessorSubtypes : unsigned

Enumerator
CPU_SUBTYPE_DUMMY
CPU_SUBTYPE_MAX

Definition at line 59 of file TargetParser.h.

ProcessorTypes

enum llvm::X86::ProcessorTypes : unsigned

Enumerator
CPU_TYPE_DUMMY
CPU_TYPE_MAX

Definition at line 49 of file TargetParser.h.

ProcessorVendors

enum llvm::X86::ProcessorVendors : unsigned

Enumerator
VENDOR_DUMMY
VENDOR_OTHER

Definition at line 39 of file TargetParser.h.

STATIC_ROUNDING

enum llvm::X86::STATIC_ROUNDING

AVX512 static rounding constants.

These need to match the values in avx512fintrin.h.

Enumerator
TO_NEAREST_INT
TO_NEG_INF
TO_POS_INF
TO_ZERO
CUR_DIRECTION

Definition at line 47 of file X86BaseInfo.h.

Function Documentation

createFastISel()

FastISel * llvm::X86::createFastISel	(	FunctionLoweringInfo &	funcInfo,
		const TargetLibraryInfo *	libInfo
	)

Definition at line 4034 of file X86FastISel.cpp.

Referenced by llvm::X86TargetLowering::createFastISel(), llvm::X86TargetLowering::getClearCacheBuiltinName(), and llvm::X86TargetLowering::getMaxSupportedInterleaveFactor().

getCMovFromCond()

unsigned llvm::X86::getCMovFromCond	(	CondCode	CC,
		unsigned	RegBytes,
		bool	HasMemoryOperand = false
	)

Return a cmov opcode for the given condition, register size in bytes, and operand type.

Definition at line 2324 of file X86InstrInfo.cpp.

References assert(), and llvm_unreachable.

Referenced by getRegClassForUnfoldedLoad(), hasVulnerableLoad(), llvm::X86InstrInfo::insertSelect(), isEFLAGSLive(), llvm::X86InstrInfo::optimizeCompareInstr(), and X86ChooseCmpImmediateOpcode().

GetCondBranchFromCond()

unsigned llvm::X86::GetCondBranchFromCond

(

X86::CondCode

CC

)

Definition at line 2192 of file X86InstrInfo.cpp.

References COND_A, COND_AE, COND_B, COND_BE, COND_E, COND_G, COND_GE, COND_L, COND_LE, COND_NE, COND_NO, COND_NP, COND_NS, COND_O, COND_P, COND_S, and llvm_unreachable.

Referenced by createPHIsForCMOVsInSinkBB(), emitClzero(), getRetOpcode(), packCmovGroup(), and X86ChooseCmpImmediateOpcode().

getCondFromBranchOpc()

X86::CondCode llvm::X86::getCondFromBranchOpc

(

unsigned

Opc

)

Definition at line 2092 of file X86InstrInfo.cpp.

References COND_A, COND_AE, COND_B, COND_BE, COND_E, COND_G, COND_GE, COND_INVALID, COND_L, COND_LE, COND_NE, COND_NO, COND_NP, COND_NS, COND_O, COND_P, and COND_S.

Referenced by findUncondBrI(), getCondFromOpc(), getFallThroughMBB(), llvm::AVRInstrInfo::getRegisterInfo(), hasVulnerableLoad(), llvm::X86InstrInfo::optimizeCompareInstr(), llvm::X86InstrInfo::removeBranch(), llvm::X86InstrInfo::replaceBranchWithTailCall(), and splitBlock().

getCondFromCMovOpc()

X86::CondCode llvm::X86::getCondFromCMovOpc

(

unsigned

Opc

)

Return condition code of a CMov opcode.

Definition at line 2138 of file X86InstrInfo.cpp.

References COND_A, COND_AE, COND_B, COND_BE, COND_E, COND_G, COND_GE, COND_INVALID, COND_L, COND_LE, COND_NE, COND_NO, COND_NP, COND_NS, COND_O, COND_P, and COND_S.

Referenced by getCondFromOpc(), llvm::X86InstrInfo::optimizeCompareInstr(), and packCmovGroup().

getCondFromSETOpc()

X86::CondCode llvm::X86::getCondFromSETOpc

(

unsigned

Opc

)

Return condition code of a SET opcode.

Definition at line 2115 of file X86InstrInfo.cpp.

References COND_A, COND_AE, COND_B, COND_BE, COND_E, COND_G, COND_GE, COND_INVALID, COND_L, COND_LE, COND_NE, COND_NO, COND_NP, COND_NS, COND_O, COND_P, and COND_S.

Referenced by getCondFromOpc(), and llvm::X86InstrInfo::optimizeCompareInstr().

GetOppositeBranchCondition()

X86::CondCode llvm::X86::GetOppositeBranchCondition

(

X86::CondCode

CC

)

GetOppositeBranchCondition - Return the inverse of the specified cond, e.g.

Return the inverse of the specified condition, e.g.

turning COND_E to COND_NE.

Definition at line 2216 of file X86InstrInfo.cpp.

References COND_A, COND_AE, COND_B, COND_BE, COND_E, COND_E_AND_NP, COND_G, COND_GE, COND_L, COND_LE, COND_NE, COND_NE_OR_P, COND_NO, COND_NP, COND_NS, COND_O, COND_P, COND_S, and llvm_unreachable.

Referenced by checkBoolTestSetCCCombine(), combineCMov(), createPHIsForCMOVsInSinkBB(), EmitKORTEST(), foldXor1SetCC(), hasVulnerableLoad(), isXor1OfSetCC(), and packCmovGroup().

getSETFromCond()

unsigned llvm::X86::getSETFromCond	(	CondCode	CC,
		bool	HasMemoryOperand = false
	)

Return a set opcode for the given condition and whether it has a memory operand.

Return a set opcode for the given condition and whether it has memory operand.

Definition at line 2298 of file X86InstrInfo.cpp.

References assert(), and LAST_VALID_COND.

Referenced by canTurnIntoCOPY(), llvm::X86InstrInfo::optimizeCompareInstr(), and X86ChooseCmpImmediateOpcode().

getSwappedVPCMPImm()

unsigned llvm::X86::getSwappedVPCMPImm

(

unsigned

Imm

)

Get the VPCMP immediate if the opcodes are swapped.

Definition at line 2389 of file X86InstrInfo.cpp.

References llvm_unreachable.

Referenced by llvm::X86InstrInfo::commuteInstructionImpl().

getSwappedVPCOMImm()

unsigned llvm::X86::getSwappedVPCOMImm

(

unsigned

Imm

)

Get the VPCOM immediate if the opcodes are swapped.

Definition at line 2407 of file X86InstrInfo.cpp.

References llvm_unreachable.

Referenced by llvm::X86InstrInfo::commuteInstructionImpl().

getVPCMPImmForCond()

unsigned llvm::X86::getVPCMPImmForCond

(

ISD::CondCode

CC

)

Get the VPCMP immediate for the given condition.

Definition at line 2372 of file X86InstrInfo.cpp.

References llvm_unreachable, llvm::ISD::SETEQ, llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETLE, llvm::ISD::SETLT, llvm::ISD::SETNE, llvm::ISD::SETUGE, llvm::ISD::SETUGT, llvm::ISD::SETULE, and llvm::ISD::SETULT.

getX86ConditionCode()

std::pair< X86::CondCode, bool > llvm::X86::getX86ConditionCode

(

CmpInst::Predicate

Predicate

)

Return a pair of condition code for the given predicate and whether the instruction operands should be swaped to match the condition code.

Definition at line 2259 of file X86InstrInfo.cpp.

References COND_A, COND_AE, COND_B, COND_BE, COND_E, COND_G, COND_GE, COND_INVALID, COND_L, COND_LE, COND_NE, COND_NP, COND_P, llvm::CmpInst::FCMP_OEQ, llvm::CmpInst::FCMP_OGE, llvm::CmpInst::FCMP_OGT, llvm::CmpInst::FCMP_OLE, llvm::CmpInst::FCMP_OLT, llvm::CmpInst::FCMP_ONE, llvm::CmpInst::FCMP_ORD, llvm::CmpInst::FCMP_UEQ, llvm::CmpInst::FCMP_UGE, llvm::CmpInst::FCMP_UGT, llvm::CmpInst::FCMP_ULE, llvm::CmpInst::FCMP_ULT, llvm::CmpInst::FCMP_UNE, llvm::CmpInst::FCMP_UNO, llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_SGE, llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLE, llvm::CmpInst::ICMP_SLT, llvm::CmpInst::ICMP_UGE, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULE, llvm::CmpInst::ICMP_ULT, and LLVM_FALLTHROUGH.

Referenced by canTurnIntoCOPY(), and X86ChooseCmpImmediateOpcode().

isCalleePop()

bool llvm::X86::isCalleePop	(	CallingConv::ID	CallingConv,
		bool	is64Bit,
		bool	IsVarArg,
		bool	GuaranteeTCO
	)

Determines whether the callee is required to pop its own arguments.

Callee pop is necessary to support tail calls.

Definition at line 4630 of file X86ISelLowering.cpp.

References is64Bit(), shouldGuaranteeTCO(), llvm::CallingConv::X86_FastCall, llvm::CallingConv::X86_StdCall, llvm::CallingConv::X86_ThisCall, and llvm::CallingConv::X86_VectorCall.

Referenced by computeBytesPoppedByCalleeForSRet(), getMOVL(), isSortedByValueNo(), and MatchingStackOffset().

isOffsetSuitableForCodeModel()

bool llvm::X86::isOffsetSuitableForCodeModel	(	int64_t	Offset,
		CodeModel::Model	M,
		bool	hasSymbolicDisplacement = true
	)

Returns true of the given offset can be fit into displacement field of the instruction.

Definition at line 4598 of file X86ISelLowering.cpp.

References llvm::isInt< 32 >(), llvm::CodeModel::Kernel, and llvm::CodeModel::Small.

Referenced by isDispSafeForFrameIndex(), llvm::X86TargetLowering::isLegalAddressingMode(), and LowerEXTRACT_SUBVECTOR().

isZeroNode()

bool llvm::X86::isZeroNode

(

SDValue

Elt

)

Returns true if Elt is a constant zero or floating point constant +0.0.

Returns true if Elt is a constant zero or a floating point constant +0.0.

Definition at line 5215 of file X86ISelLowering.cpp.

References llvm::isNullConstant(), and llvm::isNullFPConstant().

Referenced by combineADC(), combineAddOrSubToADCOrSBB(), computeZeroableShuffleElements(), EltsFromConsecutiveLoads(), getFauxShuffleMask(), getMaskNode(), InsertBitToMaskVector(), LowerBUILD_VECTORAsVariablePermute(), LowerBuildVectorv4x32(), LowerSCALAR_TO_VECTOR(), and setTargetShuffleZeroElements().