class DivergenceInfo

Declaration

class DivergenceInfo { /* full declaration omitted */ };

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:142

Member Variables

private llvm::Function& F

private bool ContainsIrreducible = false

private std::unique_ptr<SyncDependenceAnalysis> SDA

private std::unique_ptr<DivergenceAnalysisImpl> DA

Method Overview

• public DivergenceInfo(llvm::Function & F, const llvm::DominatorTree & DT, const llvm::PostDominatorTree & PDT, const llvm::LoopInfo & LI, const llvm::TargetTransformInfo & TTI, bool KnownReducible)
• public const llvm::Function & getFunction() const
• public bool hasDivergence() const
• public bool isDivergent(const llvm::Value & V) const
• public bool isDivergentUse(const llvm::Use & U) const
• public bool isUniform(const llvm::Value & V) const
• public bool isUniformUse(const llvm::Use & U) const

Methods

¶DivergenceInfo(
    llvm::Function& F,
    const llvm::DominatorTree& DT,
    const llvm::PostDominatorTree& PDT,
    const llvm::LoopInfo& LI,
    const llvm::TargetTransformInfo& TTI,
    bool KnownReducible)

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:154

Parameters

llvm::Function& F

const llvm::DominatorTree& DT

const llvm::PostDominatorTree& PDT

const llvm::LoopInfo& LI

const llvm::TargetTransformInfo& TTI

bool KnownReducible

¶const llvm::Function& getFunction() const

Description

The GPU kernel this analysis result is for

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:164

¶bool hasDivergence() const

Description

Whether any divergence was detected.

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:159

¶bool isDivergent(const llvm::Value& V) const

Description

Whether \p V is divergent at its definition.

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:167

Parameters

const llvm::Value& V

¶bool isDivergentUse(const llvm::Use& U) const

Description

Whether \p U is divergent. Uses of a uniform value can be divergent.

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:172

Parameters

const llvm::Use& U

¶bool isUniform(const llvm::Value& V) const

Description

Whether \p V is uniform/non-divergent.

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:177

Parameters

const llvm::Value& V

¶bool isUniformUse(const llvm::Use& U) const

Description

Whether \p U is uniform/non-divergent. Uses of a uniform value can be divergent.

Declared at: llvm/include/llvm/Analysis/DivergenceAnalysis.h:181

Parameters

const llvm::Use& U