struct VectorizationFactor

Declaration

struct VectorizationFactor { /* full declaration omitted */ };

Description

Information about vectorization costs.

Declared at: llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h:188

Member Variables

public llvm::ElementCount Width

Vector width with best cost.

public llvm::InstructionCost Cost

Cost of the loop with that width.

public llvm::InstructionCost ScalarCost

Cost of the scalar loop.

public llvm::ElementCount MinProfitableTripCount

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

Method Overview

• public static llvm::VectorizationFactor Disabled()
• public VectorizationFactor(llvm::ElementCount Width, llvm::InstructionCost Cost, llvm::InstructionCost ScalarCost)

Methods

¶static llvm::VectorizationFactor Disabled()

Description

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

Declared at: llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h:206

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

Declared at: llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h:201

Parameters

llvm::ElementCount Width

llvm::InstructionCost Cost

llvm::InstructionCost ScalarCost