MCInstrDesc.h Source File (original) (raw)

14#ifndef LLVM_MC_MCINSTRDESC_H

15#define LLVM_MC_MCINSTRDESC_H

22namespace llvm {

42#define MCOI_TIED_TO(op) \

43 ((1 << MCOI::TIED_TO) | ((op) << (4 + MCOI::TIED_TO * 4)))

45#define MCOI_EARLY_CLOBBER \

46 (1 << MCOI::EARLY_CLOBBER)

82}

87public:

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138};

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200public:

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206 unsigned short Opcode;

207 unsigned short NumOperands;

208 unsigned char NumDefs;

209 unsigned char Size;

210 unsigned short SchedClass;

213 unsigned short OpInfoOffset;

214 unsigned int ImplicitOffset;

217

218

219

223 (operands()[OpNum].Constraints & (1 << Constraint))) {

224 unsigned ValuePos = 4 + Constraint * 4;

225 return (int)(operands()[OpNum].Constraints >> ValuePos) & 0x0f;

226 }

227 return -1;

228 }

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568 auto ImplicitOps =

571 }

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582 auto ImplicitOps =

585 }

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614 for (unsigned i = 0, e = getNumOperands(); i != e; ++i)

615 if (operands()[i].isPredicate())

616 return i;

617 }

618 return -1;

619 }

620

621

622

625};

626

627}

628

629#endif

unsigned const MachineRegisterInfo * MRI

assert(UImm &&(UImm !=~static_cast< T >(0)) &&"Invalid immediate!")

ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...

Instances of this class represent a single low-level machine instruction.

Describe properties that are true of each instruction in the target description file.

Definition MCInstrDesc.h:199

unsigned char NumImplicitUses

Definition MCInstrDesc.h:211

unsigned getSchedClass() const

Return the scheduling class for this instruction.

Definition MCInstrDesc.h:603

uint64_t getFlags() const

Return flags of this instruction.

Definition MCInstrDesc.h:252

unsigned getNumOperands() const

Return the number of declared MachineOperands for this MachineInstruction.

Definition MCInstrDesc.h:238

unsigned char NumImplicitDefs

Definition MCInstrDesc.h:212

ArrayRef< MCOperandInfo > operands() const

Definition MCInstrDesc.h:240

bool isInsertSubregLike() const

Return true if this instruction behaves the same way as the generic INSERT_SUBREG instructions.

Definition MCInstrDesc.h:410

bool mayStore() const

Return true if this instruction could possibly modify memory.

Definition MCInstrDesc.h:446

bool isBitcast() const

Return true if this instruction is a bitcast instruction.

Definition MCInstrDesc.h:350

bool isIndirectBranch() const

Return true if this is an indirect branch, such as a branch through a register.

Definition MCInstrDesc.h:312

int findFirstPredOperandIdx() const

Find the index of the first operand in the operand list that is used to represent the predicate.

Definition MCInstrDesc.h:612

bool usesCustomInsertionHook() const

Return true if this instruction requires custom insertion support when the DAG scheduler is inserting...

Definition MCInstrDesc.h:511

uint64_t Flags

Definition MCInstrDesc.h:215

bool isBarrier() const

Returns true if the specified instruction stops control flow from executing the instruction immediate...

Definition MCInstrDesc.h:294

bool isSelect() const

Return true if this is a select instruction.

Definition MCInstrDesc.h:353

bool isAsCheapAsAMove() const

Returns true if this instruction has the same cost (or less) than a move instruction.

Definition MCInstrDesc.h:539

bool mayLoad() const

Return true if this instruction could possibly read memory.

Definition MCInstrDesc.h:440

bool hasOptionalDef() const

Set if this instruction has an optional definition, e.g.

Definition MCInstrDesc.h:266

unsigned getNumDefs() const

Return the number of MachineOperands that are register definitions.

Definition MCInstrDesc.h:249

bool isConvergent() const

Return true if this instruction is convergent.

Definition MCInstrDesc.h:417

uint64_t TSFlags

Definition MCInstrDesc.h:216

bool canFoldAsLoad() const

Return true for instructions that can be folded as memory operands in other instructions.

Definition MCInstrDesc.h:371

bool isMoveReg() const

Return true if the instruction is a register to register move.

Definition MCInstrDesc.h:286

LLVM_ABI bool hasDefOfPhysReg(const MCInst &MI, MCRegister Reg, const MCRegisterInfo &RI) const

Return true if this instruction defines the specified physical register, either explicitly or implici...

unsigned short NumOperands

Definition MCInstrDesc.h:207

LLVM_ABI bool mayAffectControlFlow(const MCInst &MI, const MCRegisterInfo &RI) const

Return true if this is a branch or an instruction which directly writes to the program counter.

bool isRematerializable() const

Returns true if this instruction is a candidate for remat.

Definition MCInstrDesc.h:526

bool isCompare() const

Return true if this instruction is a comparison.

Definition MCInstrDesc.h:343

bool isMetaInstruction() const

Return true if this is a meta instruction that doesn't produce any output in the form of executable i...

Definition MCInstrDesc.h:274

bool isBranch() const

Returns true if this is a conditional, unconditional, or indirect branch.

Definition MCInstrDesc.h:308

bool variadicOpsAreDefs() const

Return true if variadic operands of this instruction are definitions.

Definition MCInstrDesc.h:420

int getOperandConstraint(unsigned OpNum, MCOI::OperandConstraint Constraint) const

Returns the value of the specified operand constraint if it is present.

Definition MCInstrDesc.h:220

bool hasExtraDefRegAllocReq() const

Returns true if this instruction def operands have special register allocation requirements that are ...

Definition MCInstrDesc.h:557

bool mayRaiseFPException() const

Return true if this instruction may raise a floating-point exception.

Definition MCInstrDesc.h:449

unsigned int ImplicitOffset

Definition MCInstrDesc.h:214

ArrayRef< MCPhysReg > implicit_defs() const

Return a list of registers that are potentially written by any instance of this machine instruction.

Definition MCInstrDesc.h:581

bool isUnconditionalBranch() const

Return true if this is a branch which always transfers control flow to some other block.

Definition MCInstrDesc.h:326

unsigned char Size

Definition MCInstrDesc.h:209

bool isPredicable() const

Return true if this instruction has a predicate operand that controls execution.

Definition MCInstrDesc.h:340

bool isCommutable() const

Return true if this may be a 2- or 3-address instruction (of the form "X = op Y, Z,...

Definition MCInstrDesc.h:483

bool isNotDuplicable() const

Return true if this instruction cannot be safely duplicated.

Definition MCInstrDesc.h:358

bool hasUnmodeledSideEffects() const

Return true if this instruction has side effects that are not modeled by other flags.

Definition MCInstrDesc.h:465

bool hasPostISelHook() const

Return true if this instruction requires adjustment after instruction selection by calling a target h...

Definition MCInstrDesc.h:519

bool isExtractSubregLike() const

Return true if this instruction behaves the same way as the generic EXTRACT_SUBREG instructions.

Definition MCInstrDesc.h:396

bool isCall() const

Return true if the instruction is a call.

Definition MCInstrDesc.h:289

bool isConvertibleTo3Addr() const

Return true if this is a 2-address instruction which can be changed into a 3-address instruction if n...

Definition MCInstrDesc.h:499

unsigned short SchedClass

Definition MCInstrDesc.h:210

bool isTerminator() const

Returns true if this instruction part of the terminator for a basic block.

Definition MCInstrDesc.h:302

bool hasDelaySlot() const

Returns true if the specified instruction has a delay slot which must be filled by the code generator...

Definition MCInstrDesc.h:362

bool isReturn() const

Return true if the instruction is a return.

Definition MCInstrDesc.h:277

unsigned getSize() const

Return the number of bytes in the encoding of this instruction, or zero if the encoding size cannot b...

Definition MCInstrDesc.h:607

bool isAdd() const

Return true if the instruction is an add instruction.

Definition MCInstrDesc.h:280

unsigned short Opcode

Definition MCInstrDesc.h:206

bool isVariadic() const

Return true if this instruction can have a variable number of operands.

Definition MCInstrDesc.h:262

bool isTrap() const

Return true if this instruction is a trap.

Definition MCInstrDesc.h:283

bool hasImplicitUseOfPhysReg(MCRegister Reg) const

Return true if this instruction implicitly uses the specified physical register.

Definition MCInstrDesc.h:589

bool isMoveImmediate() const

Return true if this instruction is a move immediate (including conditional moves) instruction.

Definition MCInstrDesc.h:347

bool isPreISelOpcode() const

Definition MCInstrDesc.h:256

bool isConditionalBranch() const

Return true if this is a branch which may fall through to the next instruction or may transfer contro...

Definition MCInstrDesc.h:318

ArrayRef< MCPhysReg > implicit_uses() const

Return a list of registers that are potentially read by any instance of this machine instruction.

Definition MCInstrDesc.h:567

bool isAuthenticated() const

Return true if this instruction authenticates a pointer (e.g.

Definition MCInstrDesc.h:429

unsigned getOpcode() const

Return the opcode number for this descriptor.

Definition MCInstrDesc.h:231

unsigned char NumDefs

Definition MCInstrDesc.h:208

bool isPseudo() const

Return true if this is a pseudo instruction that doesn't correspond to a real machine instruction.

Definition MCInstrDesc.h:270

unsigned short OpInfoOffset

Definition MCInstrDesc.h:213

bool isRegSequenceLike() const

Return true if this instruction behaves the same way as the generic REG_SEQUENCE instructions.

Definition MCInstrDesc.h:383

bool hasExtraSrcRegAllocReq() const

Returns true if this instruction source operands have special register allocation requirements that a...

Definition MCInstrDesc.h:547

LLVM_ABI bool hasImplicitDefOfPhysReg(MCRegister Reg, const MCRegisterInfo *MRI=nullptr) const

Return true if this instruction implicitly defines the specified physical register.

This holds information about one operand of a machine instruction, indicating the register class for ...

Definition MCInstrDesc.h:86

unsigned getGenericTypeIndex() const

Definition MCInstrDesc.h:124

bool isOptionalDef() const

Set if this operand is a optional def.

Definition MCInstrDesc.h:114

unsigned getGenericImmIndex() const

Definition MCInstrDesc.h:134

bool isBranchTarget() const

Set if this operand is a branch target.

Definition MCInstrDesc.h:117

uint16_t Constraints

Operand constraints (see OperandConstraint enum).

Definition MCInstrDesc.h:101

uint8_t OperandType

Information about the type of the operand.

Definition MCInstrDesc.h:98

bool isLookupRegClassByHwMode() const

Set if this operand is a value that requires the current hwmode to look up its register class.

Definition MCInstrDesc.h:105

uint8_t Flags

These are flags from the MCOI::OperandFlags enum.

Definition MCInstrDesc.h:95

bool isGenericImm() const

Definition MCInstrDesc.h:129

int16_t RegClass

This specifies the register class enumeration of the operand if the operand is a register.

Definition MCInstrDesc.h:92

bool isGenericType() const

Definition MCInstrDesc.h:119

bool isPredicate() const

Set if this is one of the operands that made up of the predicate operand that controls an isPredicabl...

Definition MCInstrDesc.h:111

MCRegisterInfo base class - We assume that the target defines a static array of MCRegisterDesc object...

Wrapper class representing physical registers. Should be passed by value.

This provides a very simple, boring adaptor for a begin and end iterator into a range type.

Definition MCInstrDesc.h:144

Flag

These should be considered private to the implementation of the MCInstrDesc class.

Definition MCInstrDesc.h:149

@ Variadic

Definition MCInstrDesc.h:151

@ Trap

Definition MCInstrDesc.h:188

@ Compare

Definition MCInstrDesc.h:162

@ ExtraDefRegAllocReq

Definition MCInstrDesc.h:182

@ Bitcast

Definition MCInstrDesc.h:165

@ Barrier

Definition MCInstrDesc.h:158

@ Add

Definition MCInstrDesc.h:187

@ Select

Definition MCInstrDesc.h:166

@ HasOptionalDef

Definition MCInstrDesc.h:152

@ Branch

Definition MCInstrDesc.h:160

@ DelaySlot

Definition MCInstrDesc.h:167

@ MoveReg

Definition MCInstrDesc.h:164

@ Commutable

Definition MCInstrDesc.h:175

@ VariadicOpsAreDefs

Definition MCInstrDesc.h:189

@ Call

Definition MCInstrDesc.h:157

@ CheapAsAMove

Definition MCInstrDesc.h:180

@ ConvertibleTo3Addr

Definition MCInstrDesc.h:176

@ HasPostISelHook

Definition MCInstrDesc.h:178

@ MayStore

Definition MCInstrDesc.h:170

@ MayLoad

Definition MCInstrDesc.h:169

@ Return

Definition MCInstrDesc.h:155

@ EHScopeReturn

Definition MCInstrDesc.h:156

@ Convergent

Definition MCInstrDesc.h:186

@ MayRaiseFPException

Definition MCInstrDesc.h:171

@ Rematerializable

Definition MCInstrDesc.h:179

@ NotDuplicable

Definition MCInstrDesc.h:173

@ Predicable

Definition MCInstrDesc.h:172

@ ExtraSrcRegAllocReq

Definition MCInstrDesc.h:181

@ PreISelOpcode

Definition MCInstrDesc.h:150

@ RegSequence

Definition MCInstrDesc.h:183

@ FoldableAsLoad

Definition MCInstrDesc.h:168

@ MoveImm

Definition MCInstrDesc.h:163

@ Pseudo

Definition MCInstrDesc.h:153

@ IndirectBranch

Definition MCInstrDesc.h:161

@ UsesCustomInserter

Definition MCInstrDesc.h:177

@ InsertSubreg

Definition MCInstrDesc.h:185

@ Meta

Definition MCInstrDesc.h:154

@ ExtractSubreg

Definition MCInstrDesc.h:184

@ Authenticated

Definition MCInstrDesc.h:190

@ Terminator

Definition MCInstrDesc.h:159

@ UnmodeledSideEffects

Definition MCInstrDesc.h:174

Definition MCInstrDesc.h:31

OperandFlags

These are flags set on operands, but should be considered private, all access should go through the M...

Definition MCInstrDesc.h:51

@ OptionalDef

Definition MCInstrDesc.h:54

@ BranchTarget

Definition MCInstrDesc.h:55

@ Predicate

Definition MCInstrDesc.h:53

@ LookupRegClassByHwMode

Definition MCInstrDesc.h:52

OperandConstraint

Operand constraints.

Definition MCInstrDesc.h:36

@ EARLY_CLOBBER

Definition MCInstrDesc.h:38

@ TIED_TO

Definition MCInstrDesc.h:37

OperandType

Operands are tagged with one of the values of this enum.

Definition MCInstrDesc.h:59

@ OPERAND_GENERIC_4

Definition MCInstrDesc.h:71

@ OPERAND_PCREL

Definition MCInstrDesc.h:64

@ OPERAND_GENERIC_2

Definition MCInstrDesc.h:69

@ OPERAND_GENERIC_1

Definition MCInstrDesc.h:68

@ OPERAND_REGISTER

Definition MCInstrDesc.h:62

@ OPERAND_FIRST_TARGET

Definition MCInstrDesc.h:79

@ OPERAND_GENERIC_IMM_0

Definition MCInstrDesc.h:76

@ OPERAND_GENERIC_3

Definition MCInstrDesc.h:70

@ OPERAND_IMMEDIATE

Definition MCInstrDesc.h:61

@ OPERAND_MEMORY

Definition MCInstrDesc.h:63

@ OPERAND_UNKNOWN

Definition MCInstrDesc.h:60

@ OPERAND_LAST_GENERIC

Definition MCInstrDesc.h:73

@ OPERAND_FIRST_GENERIC

Definition MCInstrDesc.h:66

@ OPERAND_GENERIC_0

Definition MCInstrDesc.h:67

@ OPERAND_GENERIC_5

Definition MCInstrDesc.h:72

@ OPERAND_FIRST_GENERIC_IMM

Definition MCInstrDesc.h:75

@ OPERAND_LAST_GENERIC_IMM

Definition MCInstrDesc.h:77

This is an optimization pass for GlobalISel generic memory operations.

uint16_t MCPhysReg

An unsigned integer type large enough to represent all physical registers, but not necessarily virtua...

ArrayRef(const T &OneElt) -> ArrayRef< T >

bool is_contained(R &&Range, const E &Element)

Returns true if Element is found in Range.