Nathiyaa Sengodan 5502053d57 [MemoryDependenceAnalysis] Disambiguate visited state in non-local pointer dep tracking (#193220) ...

NonLocalPointerDepVisited used nullptr for both "not visited basic block
in current epoch" and "visited, but PHI translation failed". This
ambiguity could cause incorrect predecessor-state handling in non-local
dependency queries and trigger a GVN LoadPRE assertion crash.

Use NonLocalPointerDepEpoch to explicitly check visited state instead of
inferring from the stored pointer value

Fixes https://github.com/llvm/llvm-project/issues/190585

2026-04-23 11:24:43 +02:00

70 KiB

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