llvm::VPTypeAnalysis Class Reference

An analysis for type-inference for VPValues. More...

#include "Transforms/Vectorize/VPlanAnalysis.h"

Public Member Functions
	VPTypeAnalysis (const VPlan &Plan)
Type *	inferScalarType (const VPValue *V)
	Infer the type of V. Returns the scalar type of V.
LLVMContext &	getContext ()
	Return the LLVMContext used by the analysis.

Detailed Description

An analysis for type-inference for VPValues.

It infers the scalar type for a given VPValue by bottom-up traversing through defining recipes until root nodes with known types are reached (e.g. live-ins or load recipes). The types are then propagated top down through operations. Note that the analysis caches the inferred types. A new analysis object must be constructed once a VPlan has been modified in a way that invalidates any of the previously inferred types.

Definition at line 43 of file VPlanAnalysis.h.

Constructor & Destructor Documentation

VPTypeAnalysis()

VPTypeAnalysis::VPTypeAnalysis

(

const VPlan &

Plan

)

Definition at line 24 of file VPlanAnalysis.cpp.

References llvm::Type::getScalarType(), llvm::VPlan::getTripCount(), and llvm::VPlan::getVectorLoopRegion().

Member Function Documentation

getContext()

LLVMContext & llvm::VPTypeAnalysis::getContext ( )

inline

Return the LLVMContext used by the analysis.

Definition at line 67 of file VPlanAnalysis.h.

Referenced by llvm::VPBlendRecipe::computeCost(), and tryToFoldLiveIns().

inferScalarType()

Type * VPTypeAnalysis::inferScalarType

(

const VPValue *

V

)

Infer the type of V. Returns the scalar type of V.

Definition at line 260 of file VPlanAnalysis.cpp.

References assert(), llvm::TypeSwitch< T, ResultT >::Case(), and inferScalarType().

Referenced by addResumePhiRecipeForInduction(), llvm::calculateRegisterUsageForPlan(), llvm::VPlanTransforms::canonicalizeEVLLoops(), llvm::VPInstruction::computeCost(), llvm::VPWidenCastRecipe::computeCost(), llvm::VPHistogramRecipe::computeCost(), llvm::VPWidenSelectRecipe::computeCost(), llvm::VPBlendRecipe::computeCost(), llvm::VPInterleaveRecipe::computeCost(), llvm::VPReductionRecipe::computeCost(), llvm::VPPartialReductionRecipe::computeCost(), llvm::VPReplicateRecipe::computeCost(), llvm::VPExpressionRecipe::computeCost(), llvm::VPWidenMemoryRecipe::computeCost(), llvm::VPlanTransforms::convertToConcreteRecipes(), createScalarIVSteps(), llvm::VPPhi::execute(), llvm::VPWidenRecipe::execute(), llvm::VPPredInstPHIRecipe::execute(), expandVPWidenIntOrFpInduction(), expandVPWidenPointerInduction(), getCostForIntrinsics(), llvm::VPRecipeWithIRFlags::getCostForRecipeWithOpcode(), inferScalarType(), isConsecutiveInterleaveGroup(), llvm::VPlanTransforms::materializeBackedgeTakenCount(), llvm::VPlanTransforms::materializeBuildVectors(), llvm::VPlanTransforms::materializeVectorTripCount(), llvm::VPlanTransforms::materializeVFAndVFxUF(), optimizeEarlyExitInductionUser(), optimizeLatchExitInductionUser(), optimizeMaskToEVL(), scalarizeInstruction(), simplifyRecipe(), transformRecipestoEVLRecipes(), llvm::VPlanTransforms::truncateToMinimalBitwidths(), tryToFoldLiveIns(), tryToMatchAndCreateExtendedReduction(), tryToMatchAndCreateMulAccumulateReduction(), and willGenerateVectors().

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The documentation for this class was generated from the following files:

• lib/Transforms/Vectorize/VPlanAnalysis.h
• lib/Transforms/Vectorize/VPlanAnalysis.cpp