class ConstantFP

Declaration

class ConstantFP : public ConstantData { /* full declaration omitted */ };

Declared at: llvm/include/llvm/IR/Constants.h:263

Inherits from: ConstantData

Member Variables

Inherited from Value:

protected SubclassOptionalData

protected NumUserOperands

protected IsUsedByMD

protected HasName

protected HasHungOffUses

protected HasDescriptor

public static MaxAlignmentExponent = 29

public static MaximumAlignment = 1U << MaxAlignmentExponent

Method Overview

• public ConstantFP(const llvm::ConstantFP &)
• public static bool classof(const llvm::Value * V)
• public static llvm::Constant * get(llvm::Type * Ty, double V)
• public static llvm::Constant * get(llvm::Type * Ty, const llvm::APFloat & V)
• public static llvm::Constant * get(llvm::Type * Ty, llvm::StringRef Str)
• public static llvm::ConstantFP * get(llvm::LLVMContext & Context, const llvm::APFloat & V)
• public static llvm::Constant * getInfinity(llvm::Type * Ty, bool Negative = false)
• public static llvm::Constant * getNaN(llvm::Type * Ty, bool Negative = false, uint64_t Payload = 0)
• public static llvm::Constant * getNegativeZero(llvm::Type * Ty)
• public static llvm::Constant * getQNaN(llvm::Type * Ty, bool Negative = false, llvm::APInt * Payload = nullptr)
• public static llvm::Constant * getSNaN(llvm::Type * Ty, bool Negative = false, llvm::APInt * Payload = nullptr)
• public inline const llvm::APFloat & getValueAPF() const
• public static llvm::Constant * getZeroValueForNegation(llvm::Type * Ty)
• public bool isExactlyValue(const llvm::APFloat & V) const
• public bool isExactlyValue(double V) const
• public bool isInfinity() const
• public bool isNaN() const
• public bool isNegative() const
• public static bool isValueValidForType(llvm::Type * Ty, const llvm::APFloat & V)
• public bool isZero() const

Inherited from ConstantData:

• public classof

Inherited from Constant:

• public canTrap
• public classof
• public containsConstantExpression
• public containsUndefElement
• public destroyConstant
• public getAggregateElement
• public getAggregateElement
• public getAllOnesValue
• public getIntegerValue
• public getNullValue
• public getSplatValue
• public getUniqueInteger
• public handleOperandChange
• public hasExactInverseFP
• public isAllOnesValue
• public isConstantUsed
• public isDLLImportDependent
• public isElementWiseEqual
• public isFiniteNonZeroFP
• public isMinSignedValue
• public isNaN
• public isNegativeZeroValue
• public isNormalFP
• public isNotMinSignedValue
• public isNotOneValue
• public isNullValue
• public isOneValue
• public isThreadDependent
• public isZeroValue
• public needsRelocation
• public removeDeadConstantUsers
• public replaceUndefsWith
• public stripPointerCasts
• public stripPointerCasts

Inherited from User:

• protected Op
• protected Op
• protected OpFrom
• protected allocHungoffUses
• public classof
• public dropAllReferences
• public getDescriptor
• public getDescriptor
• public getNumOperands
• public getOperand
• public getOperandList
• public getOperandList
• public getOperandUse
• public getOperandUse
• protected growHungoffUses
• public op_begin
• public op_begin
• public op_end
• public op_end
• public operand_values
• public operand_values
• public operands
• public operands
• public replaceUsesOfWith
• public setGlobalVariableNumOperands
• public setNumHungOffUseOperands
• public setOperand
• public value_op_begin
• public value_op_begin
• public value_op_end
• public value_op_end

Inherited from Value:

• public DoPHITranslation
• public DoPHITranslation
• public addUse
• public assertModuleIsMaterialized
• public assertModuleIsMaterializedImpl
• public clearSubclassOptionalData
• public deleteValue
• public dump
• public getContext
• public getName
• public getNumUses
• public getPointerAlignment
• public getPointerDereferenceableBytes
• public getRawSubclassOptionalData
• protected getSubclassDataFromValue
• public getType
• public getValueID
• public getValueName
• public hasNUses
• public hasNUsesOrMore
• public hasName
• public hasOneUse
• public hasSameSubclassOptionalData
• public hasValueHandle
• public isSwiftError
• public isUsedByMetadata
• public isUsedInBasicBlock
• public materialized_use_begin
• public materialized_use_begin
• public materialized_use_empty
• public materialized_user_begin
• public materialized_user_begin
• public materialized_users
• public materialized_users
• public materialized_uses
• public materialized_uses
• public mutateType
• public print
• public print
• public printAsOperand
• public printAsOperand
• public replaceAllUsesWith
• public replaceNonMetadataUsesWith
• public replaceUsesOutsideBlock
• public replaceUsesWithIf
• public reverseUseList
• public setName
• public setValueName
• protected setValueSubclassData
• public sortUseList
• public stripAndAccumulateConstantOffsets
• public stripAndAccumulateConstantOffsets
• public stripAndAccumulateInBoundsConstantOffsets
• public stripAndAccumulateInBoundsConstantOffsets
• public stripInBoundsConstantOffsets
• public stripInBoundsConstantOffsets
• public stripInBoundsOffsets
• public stripInBoundsOffsets
• public stripPointerCasts
• public stripPointerCasts
• public stripPointerCastsAndAliases
• public stripPointerCastsAndAliases
• public stripPointerCastsAndInvariantGroups
• public stripPointerCastsAndInvariantGroups
• public stripPointerCastsSameRepresentation
• public stripPointerCastsSameRepresentation
• public takeName
• public use_begin
• public use_begin
• public use_empty
• public use_end
• public use_end
• public user_back
• public user_back
• public user_begin
• public user_begin
• public user_empty
• public user_end
• public user_end
• public users
• public users
• public uses
• public uses

Methods

¶ConstantFP(const llvm::ConstantFP&)

Declared at: llvm/include/llvm/IR/Constants.h:273

Parameters

const llvm::ConstantFP&

¶static bool classof(const llvm::Value* V)

Description

Methods for support type inquiry through isa, cast, and dyn_cast:

Declared at: llvm/include/llvm/IR/Constants.h:332

Parameters

const llvm::Value* V

¶static llvm::Constant* get(llvm::Type* Ty,
                           double V)

Description

This returns a ConstantFP, or a vector containing a splat of a ConstantFP, for the specified value in the specified type. This should only be used for simple constant values like 2.0/1.0 etc, that are known-valid both as host double and as the target format.

Declared at: llvm/include/llvm/IR/Constants.h:284

Parameters

llvm::Type* Ty

double V

¶static llvm::Constant* get(llvm::Type* Ty,
                           const llvm::APFloat& V)

Description

If Ty is a vector type, return a Constant with a splat of the given value. Otherwise return a ConstantFP for the given value.

Declared at: llvm/include/llvm/IR/Constants.h:288

Parameters

llvm::Type* Ty

const llvm::APFloat& V

¶static llvm::Constant* get(llvm::Type* Ty,
                           llvm::StringRef Str)

Declared at: llvm/include/llvm/IR/Constants.h:290

Parameters

llvm::Type* Ty

llvm::StringRef Str

¶static llvm::ConstantFP* get(
    llvm::LLVMContext& Context,
    const llvm::APFloat& V)

Declared at: llvm/include/llvm/IR/Constants.h:291

Parameters

llvm::LLVMContext& Context

const llvm::APFloat& V

¶static llvm::Constant* getInfinity(
    llvm::Type* Ty,
    bool Negative = false)

Declared at: llvm/include/llvm/IR/Constants.h:298

Parameters

llvm::Type* Ty

bool Negative = false

¶static llvm::Constant* getNaN(
    llvm::Type* Ty,
    bool Negative = false,
    uint64_t Payload = 0)

Declared at: llvm/include/llvm/IR/Constants.h:292

Parameters

llvm::Type* Ty

bool Negative = false

uint64_t Payload = 0

¶static llvm::Constant* getNegativeZero(
    llvm::Type* Ty)

Declared at: llvm/include/llvm/IR/Constants.h:297

Parameters

llvm::Type* Ty

¶static llvm::Constant* getQNaN(
    llvm::Type* Ty,
    bool Negative = false,
    llvm::APInt* Payload = nullptr)

Declared at: llvm/include/llvm/IR/Constants.h:293

Parameters

llvm::Type* Ty

bool Negative = false

llvm::APInt* Payload = nullptr

¶static llvm::Constant* getSNaN(
    llvm::Type* Ty,
    bool Negative = false,
    llvm::APInt* Payload = nullptr)

Declared at: llvm/include/llvm/IR/Constants.h:295

Parameters

llvm::Type* Ty

bool Negative = false

llvm::APInt* Payload = nullptr

¶inline const llvm::APFloat& getValueAPF() const

Declared at: llvm/include/llvm/IR/Constants.h:302

¶static llvm::Constant* getZeroValueForNegation(
    llvm::Type* Ty)

Description

Floating point negation must be implemented with f(x) = -0.0 - x. This method returns the negative zero constant for floating point or vector floating point types; for all other types, it returns the null value.

Declared at: llvm/include/llvm/IR/Constants.h:278

Parameters

llvm::Type* Ty

¶bool isExactlyValue(const llvm::APFloat& V) const

Description

We don't rely on operator== working on double values, as it returns true for things that are clearly not equal, like -0.0 and 0.0. As such, this method can be used to do an exact bit-for-bit comparison of two floating point values. The version with a double operand is retained because it's so convenient to write isExactlyValue(2.0), but please use it only for simple constants.

Declared at: llvm/include/llvm/IR/Constants.h:322

Parameters

const llvm::APFloat& V

¶bool isExactlyValue(double V) const

Declared at: llvm/include/llvm/IR/Constants.h:324

Parameters

double V

¶bool isInfinity() const

Description

Return true if the value is infinity

Declared at: llvm/include/llvm/IR/Constants.h:311

¶bool isNaN() const

Description

Return true if the value is a NaN.

Declared at: llvm/include/llvm/IR/Constants.h:314

¶bool isNegative() const

Description

Return true if the sign bit is set.

Declared at: llvm/include/llvm/IR/Constants.h:308

¶static bool isValueValidForType(
    llvm::Type* Ty,
    const llvm::APFloat& V)

Description

Return true if Ty is big enough to represent V.

Declared at: llvm/include/llvm/IR/Constants.h:301

Parameters

llvm::Type* Ty

const llvm::APFloat& V

¶bool isZero() const

Description

Return true if the value is positive or negative zero.

Declared at: llvm/include/llvm/IR/Constants.h:305