llvm::RecursivelyDeleteTriviallyDeadInstructionsPermissive

Recursively delete trivially dead instructions from a permissive worklist.

Synopsis

Declared in <llvm/Transforms/Utils/Local.h>

bool
RecursivelyDeleteTriviallyDeadInstructionsPermissive(
    SmallVectorImpl<WeakTrackingVH>& DeadInsts,
    TargetLibraryInfo const* TLI = nullptr,
    MemorySSAUpdater* MSSAU = nullptr,
    std::function<void(Value*)> AboutToDeleteCallback = std::function<void(Value *)>());

Description

Same functionality as RecursivelyDeleteTriviallyDeadInstructions, but allow instructions that are not trivially dead. These will be ignored. Returns true if any changes were made, i.e. any instructions trivially dead were found and deleted.

Return Value

True if any trivially dead instructions were found and deleted.

Parameters

Name

Description

DeadInsts

Worklist that may contain non‐dead instructions.

TLI

Optional target library info used for deadness analysis.

MSSAU

Optional MemorySSA updater notified of deletions.

AboutToDeleteCallback

Optional callback invoked before each deletion.

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