class VPScalarIVStepsRecipe

Declaration

class VPScalarIVStepsRecipe : public VPRecipeBase, public VPValue { /* full declaration omitted */ };

Description

A recipe for handling phi nodes of integer and floating-point inductions, producing their scalar values.

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1960

Inherits from: VPRecipeBase, VPValue

Member Variables

private llvm::Type* Ty

Scalar type to use for the generated values.

private llvm::Type* TruncToTy

If not nullptr, truncate the generated values to TruncToTy.

private const llvm::InductionDescriptor& IndDesc

Inherited from VPValue:

protected UnderlyingVal

protected Def

Method Overview

• public VPScalarIVStepsRecipe(llvm::Type * Ty, const llvm::InductionDescriptor & IndDesc, llvm::VPValue * CanonicalIV, llvm::VPValue * Start, llvm::VPValue * Step, llvm::Type * TruncToTy)
• public static inline bool classof(const llvm::VPDef * D)
• public static inline bool classof(const llvm::VPUser * U)
• public static inline bool classof(const llvm::VPRecipeBase * R)
• public void execute(llvm::VPTransformState & State)
• public llvm::VPCanonicalIVPHIRecipe * getCanonicalIV() const
• public llvm::VPValue * getStartValue() const
• public llvm::VPValue * getStepValue() const
• public bool isCanonical() const
• public bool onlyFirstLaneUsed(const llvm::VPValue * Op) const
• public void print(llvm::raw_ostream & O, const llvm::Twine & Indent, llvm::VPSlotTracker & SlotTracker) const
• public ~VPScalarIVStepsRecipe()

Inherited from VPValue:

• public addUser
• public dump
• public getDef
• public getDef
• public getLiveInIRValue
• public getLiveInIRValue
• public getNumUsers
• public getUnderlyingValue
• public getUnderlyingValue
• public getVPValueID
• public hasMoreThanOneUniqueUser
• public print
• public printAsOperand
• public removeUser
• public replaceAllUsesWith
• protected setUnderlyingValue
• public user_begin
• public user_begin
• public user_end
• public user_end
• public users
• public users

Inherited from VPRecipeBase:

• public classof
• public classof
• public eraseFromParent
• public execute
• public getParent
• public getParent
• public getUnderlyingInstr
• public getUnderlyingInstr
• public insertAfter
• public insertBefore
• public insertBefore
• public isPhi
• public mayHaveSideEffects
• public mayReadFromMemory
• public mayReadOrWriteMemory
• public mayWriteToMemory
• public moveAfter
• public moveBefore
• public removeFromParent

Inherited from VPUser:

• public addOperand
• public classof
• public getNumOperands
• public getOperand
• public getVPUserID
• public onlyFirstLaneUsed
• public op_begin
• public op_begin
• public op_end
• public op_end
• public operands
• public operands
• protected printOperands
• public removeLastOperand
• public setOperand
• public usesScalars

Inherited from VPDef:

• public definedValues
• public definedValues
• public dump
• public getNumDefinedValues
• public getVPDefID
• public getVPSingleValue
• public getVPSingleValue
• public getVPValue
• public getVPValue
• public print

Methods

¶VPScalarIVStepsRecipe(
    llvm::Type* Ty,
    const llvm::InductionDescriptor& IndDesc,
    llvm::VPValue* CanonicalIV,
    llvm::VPValue* Start,
    llvm::VPValue* Step,
    llvm::Type* TruncToTy)

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1968

Parameters

llvm::Type* Ty

const llvm::InductionDescriptor& IndDesc

llvm::VPValue* CanonicalIV

llvm::VPValue* Start

llvm::VPValue* Step

llvm::Type* TruncToTy

¶static inline bool classof(const llvm::VPDef* D)

Description

Method to support type inquiry through isa, cast, and dyn_cast.

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1978

Parameters

const llvm::VPDef* D

¶static inline bool classof(const llvm::VPUser* U)

Description

Extra classof implementations to allow directly casting from VPUser -> VPScalarIVStepsRecipe.

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1983

Parameters

const llvm::VPUser* U

¶static inline bool classof(
    const llvm::VPRecipeBase* R)

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1987

Parameters

const llvm::VPRecipeBase* R

¶void execute(llvm::VPTransformState& State)

Description

Generate the scalarized versions of the phi node as needed by their users.

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1992

Parameters

llvm::VPTransformState& State

¶llvm::VPCanonicalIVPHIRecipe* getCanonicalIV()
    const

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:2004

¶llvm::VPValue* getStartValue() const

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:2005

¶llvm::VPValue* getStepValue() const

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:2006

¶bool isCanonical() const

Description

Returns true if the induction is canonical, i.e. starting at 0 and incremented by UF * VF (= the original IV is incremented by 1).

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:2002

¶bool onlyFirstLaneUsed(
    const llvm::VPValue* Op) const

Description

Returns true if the recipe only uses the first lane of operand \p Op.

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:2009

Parameters

const llvm::VPValue* Op

¶void print(llvm::raw_ostream& O,
           const llvm::Twine& Indent,
           llvm::VPSlotTracker& SlotTracker) const

Description

Print the recipe.

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1996

Parameters

llvm::raw_ostream& O

const llvm::Twine& Indent

llvm::VPSlotTracker& SlotTracker

¶~VPScalarIVStepsRecipe()

Declared at: llvm/lib/Transforms/Vectorize/VPlan.h:1975