LLVM: llvm::VectorizationFactor Struct Reference

LLVM 24.0.0git

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)

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 618 of file LoopVectorizationPlanner.h.

Constructor & Destructor Documentation

◆ VectorizationFactor()

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

inline

Definition at line 632 of file LoopVectorizationPlanner.h.

References Cost, ScalarCost, and Width.

Referenced by Disabled().

Member Function Documentation

◆ Disabled()

VectorizationFactor llvm::VectorizationFactor::Disabled ( )

inlinestatic

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

Definition at line 637 of file LoopVectorizationPlanner.h.

References llvm::ElementCount::getFixed(), and VectorizationFactor().

Referenced by llvm::LoopVectorizationPlanner::computeBestVF(), and llvm::LoopVectorizationPlanner::selectBestEpiloguePlan().

Member Data Documentation

◆ Cost

InstructionCost llvm::VectorizationFactor::Cost

Cost of the loop with that width.

Definition at line 623 of file LoopVectorizationPlanner.h.

Referenced by llvm::LoopVectorizationPlanner::computeBestVF(), isOutsideLoopWorkProfitable(), and VectorizationFactor().

◆ MinProfitableTripCount

ElementCount llvm::VectorizationFactor::MinProfitableTripCount

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

due to runtime checks.

Definition at line 630 of file LoopVectorizationPlanner.h.

Referenced by isOutsideLoopWorkProfitable().

◆ ScalarCost

InstructionCost llvm::VectorizationFactor::ScalarCost

Cost of the scalar loop.

Definition at line 626 of file LoopVectorizationPlanner.h.

Referenced by llvm::LoopVectorizationPlanner::computeBestVF(), isOutsideLoopWorkProfitable(), and VectorizationFactor().

◆ Width

ElementCount llvm::VectorizationFactor::Width

Vector width with best cost.

Definition at line 620 of file LoopVectorizationPlanner.h.

Referenced by llvm::LoopVectorizationPlanner::computeBestVF(), isOutsideLoopWorkProfitable(), and VectorizationFactor().

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

lib/Transforms/Vectorize/LoopVectorizationPlanner.h