class FPMathOperator

Declaration

class FPMathOperator : public Operator { /* full declaration omitted */ };

Description

Utility class for floating point operations which can have information about relaxed accuracy requirements attached to them.

Declared at: llvm/include/llvm/IR/Operator.h:246

Inherits from: Operator

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 static bool classof(const llvm::Value * V)
• public float getFPAccuracy() const
• public llvm::FastMathFlags getFastMathFlags() const
• public bool hasAllowContract() const
• public bool hasAllowReassoc() const
• public bool hasAllowReciprocal() const
• public bool hasApproxFunc() const
• public bool hasNoInfs() const
• public bool hasNoNaNs() const
• public bool hasNoSignedZeros() const
• public bool isFast() const

Inherited from Operator:

• public classof
• public classof
• public classof
• public getOpcode
• public getOpcode

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

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

Declared at: llvm/include/llvm/IR/Operator.h:373

Parameters

const llvm::Value* V

¶float getFPAccuracy() const

Description

Get the maximum error permitted by this operation in ULPs. An accuracy of 0.0 means that the operation should be performed with the default precision.

Declared at: llvm/include/llvm/IR/Operator.h:371

¶llvm::FastMathFlags getFastMathFlags() const

Description

Convenience function for getting all the fast-math flags

Declared at: llvm/include/llvm/IR/Operator.h:364

¶bool hasAllowContract() const

Description

Test if this operation can be floating-point contracted (FMA).

Declared at: llvm/include/llvm/IR/Operator.h:353

¶bool hasAllowReassoc() const

Description

Test if this operation may be simplified with reassociative transforms.

Declared at: llvm/include/llvm/IR/Operator.h:328

¶bool hasAllowReciprocal() const

Description

Test if this operation can use reciprocal multiply instead of division.

Declared at: llvm/include/llvm/IR/Operator.h:348

¶bool hasApproxFunc() const

Description

Test if this operation allows approximations of math library functions or intrinsics.

Declared at: llvm/include/llvm/IR/Operator.h:359

¶bool hasNoInfs() const

Description

Test if this operation's arguments and results are assumed not-infinite.

Declared at: llvm/include/llvm/IR/Operator.h:338

¶bool hasNoNaNs() const

Description

Test if this operation's arguments and results are assumed not-NaN.

Declared at: llvm/include/llvm/IR/Operator.h:333

¶bool hasNoSignedZeros() const

Description

Test if this operation can ignore the sign of zero.

Declared at: llvm/include/llvm/IR/Operator.h:343

¶bool isFast() const

Description

Test if this operation allows all non-strict floating-point transforms.

Declared at: llvm/include/llvm/IR/Operator.h:317