struct CriticalEdgeSplittingOptions

Declaration

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

Description

Option class for critical edge splitting. This provides a builder interface for overriding the default options used during critical edge splitting.

Declared at: llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:142

Member Variables

public llvm::DominatorTree* DT

public llvm::PostDominatorTree* PDT

public llvm::LoopInfo* LI

public llvm::MemorySSAUpdater* MSSAU

public bool MergeIdenticalEdges = false

public bool KeepOneInputPHIs = false

public bool PreserveLCSSA = false

public bool IgnoreUnreachableDests = false

public bool PreserveLoopSimplify = true

SplitCriticalEdge is guaranteed to preserve loop-simplify form if LI is provided. If it cannot be preserved, no splitting will take place. If it is not set, preserve loop-simplify form if possible.

Method Overview

• public CriticalEdgeSplittingOptions(llvm::DominatorTree * DT = nullptr, llvm::LoopInfo * LI = nullptr, llvm::MemorySSAUpdater * MSSAU = nullptr, llvm::PostDominatorTree * PDT = nullptr)
• public llvm::CriticalEdgeSplittingOptions & setIgnoreUnreachableDests()
• public llvm::CriticalEdgeSplittingOptions & setKeepOneInputPHIs()
• public llvm::CriticalEdgeSplittingOptions & setMergeIdenticalEdges()
• public llvm::CriticalEdgeSplittingOptions & setPreserveLCSSA()
• public llvm::CriticalEdgeSplittingOptions & unsetPreserveLoopSimplify()

Methods

¶CriticalEdgeSplittingOptions(
    llvm::DominatorTree* DT = nullptr,
    llvm::LoopInfo* LI = nullptr,
    llvm::MemorySSAUpdater* MSSAU = nullptr,
    llvm::PostDominatorTree* PDT = nullptr)

Declared at: llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:156

Parameters

llvm::DominatorTree* DT = nullptr

llvm::LoopInfo* LI = nullptr

llvm::MemorySSAUpdater* MSSAU = nullptr

llvm::PostDominatorTree* PDT = nullptr

¶llvm::CriticalEdgeSplittingOptions&
setIgnoreUnreachableDests()

Declared at: llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:177

¶llvm::CriticalEdgeSplittingOptions&
setKeepOneInputPHIs()

Declared at: llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:167

¶llvm::CriticalEdgeSplittingOptions&
setMergeIdenticalEdges()

Declared at: llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:162

¶llvm::CriticalEdgeSplittingOptions&
setPreserveLCSSA()

Declared at: llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:172

¶llvm::CriticalEdgeSplittingOptions&
unsetPreserveLoopSimplify()

Declared at: llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:182