perf: cache repeated tree walks to avoid O(N^2) in optimizeTerminatingTails in CodeFolding#8602

Draft

Changqing-JING wants to merge 2 commits intoWebAssembly:mainfrom

Changqing-JING:opt/compile-speed3

Commits on Apr 15, 2026

avoid O(N^2) exiting-branch checks in CodeFolding
Changqing-JING
committed
perf: cache repeated tree walks to avoid O(N^2) in optimizeTerminatingTails
Changqing-JING
committed