LLVM: llvm::VectorizationFactor Struct Reference

LLVM 20.0.0git

TODO: The following VectorizationFactor was pulled out of LoopVectorizationCostModel class. More...

#include "Transforms/Vectorize/LoopVectorizationPlanner.h"

Public Member Functions
	VectorizationFactor (ElementCount Width, InstructionCost Cost, InstructionCost ScalarCost)

bool	operator== (const VectorizationFactor &rhs) const

bool	operator!= (const VectorizationFactor &rhs) const

Static Public Member Functions
static VectorizationFactor	Disabled ()
	Width 1 means no vectorization, cost 0 means uncomputed cost.

Public Attributes
ElementCount	Width
	Vector width with best cost.

InstructionCost	Cost
	Cost of the loop with that width.

InstructionCost	ScalarCost
	Cost of the scalar loop.

ElementCount	MinProfitableTripCount
	The minimum trip count required to make vectorization profitable, e.g.

Detailed Description

TODO: The following VectorizationFactor was pulled out of LoopVectorizationCostModel class.

LV also deals with VectorizerParams::VectorizationFactor. We need to streamline them. Information about vectorization costs.

Definition at line 233 of file LoopVectorizationPlanner.h.

Constructor & Destructor Documentation

◆ VectorizationFactor()

llvm::VectorizationFactor::VectorizationFactor	(	ElementCount	Width,
		InstructionCost	Cost,
		InstructionCost	ScalarCost
	)

inline

Definition at line 247 of file LoopVectorizationPlanner.h.

Member Function Documentation

◆ Disabled()

static VectorizationFactor llvm::VectorizationFactor::Disabled ( )

inlinestatic

Width 1 means no vectorization, cost 0 means uncomputed cost.

Definition at line 252 of file LoopVectorizationPlanner.h.

References llvm::ElementCount::getFixed().

Referenced by llvm::LoopVectorizationPlanner::plan(), llvm::LoopVectorizationPlanner::planInVPlanNativePath(), llvm::LoopVectorizePass::processLoop(), processLoopInVPlanNativePath(), and llvm::LoopVectorizationPlanner::selectEpilogueVectorizationFactor().

◆ operator!=()

bool llvm::VectorizationFactor::operator!= ( const VectorizationFactor & rhs ) const

inline

Definition at line 260 of file LoopVectorizationPlanner.h.

◆ operator==()

bool llvm::VectorizationFactor::operator== ( const VectorizationFactor & rhs ) const

inline

Definition at line 256 of file LoopVectorizationPlanner.h.

References Cost, and Width.

Member Data Documentation

◆ Cost

InstructionCost llvm::VectorizationFactor::Cost

Cost of the loop with that width.

Definition at line 238 of file LoopVectorizationPlanner.h.

Referenced by areRuntimeChecksProfitable(), llvm::LoopVectorizationPlanner::computeBestVF(), operator==(), and llvm::LoopVectorizePass::processLoop().

◆ MinProfitableTripCount

ElementCount llvm::VectorizationFactor::MinProfitableTripCount

The minimum trip count required to make vectorization profitable, e.g.

due to runtime checks.

Definition at line 245 of file LoopVectorizationPlanner.h.

Referenced by areRuntimeChecksProfitable(), and llvm::LoopVectorizePass::processLoop().

◆ ScalarCost

InstructionCost llvm::VectorizationFactor::ScalarCost

Cost of the scalar loop.

Definition at line 241 of file LoopVectorizationPlanner.h.

Referenced by areRuntimeChecksProfitable(), and llvm::LoopVectorizationPlanner::plan().

◆ Width

ElementCount llvm::VectorizationFactor::Width

Vector width with best cost.

Definition at line 235 of file LoopVectorizationPlanner.h.

Referenced by areRuntimeChecksProfitable(), llvm::LoopVectorizationPlanner::computeBestVF(), operator==(), llvm::LoopVectorizationPlanner::plan(), llvm::LoopVectorizePass::processLoop(), processLoopInVPlanNativePath(), and llvm::reportVectorization().

The documentation for this struct was generated from the following file:

lib/Transforms/Vectorize/LoopVectorizationPlanner.h