higher-performance c54afe5c33 Fix quadratic slowdown in AST matcher parent map generation (#87824) ...

Avoids the need to linearly re-scan all seen parent nodes to check for
duplicates, which previously caused a slowdown for ancestry checks in
Clang AST matchers.

Fixes: #86881

2024-04-10 13:24:19 -04:00

17 KiB

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