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JuliaLang / julia Public

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subtype: isolate `Union` state in `subtype_ccheck` to prevent exponential hang#61316

Merged

adienes merged 5 commits intomasterJuliaLang/julia:masterfrom

avi/fix-subtyping-hangJuliaLang/julia:avi/fix-subtyping-hangCopy head branch name to clipboard

Mar 27, 2026

Conversation Commits5 (5)Checks Files changed

Merged

subtype: isolate `Union` state in `subtype_ccheck` to prevent exponential hang#61316
adienes merged 5 commits intomasterfrom
avi/fix-subtyping-hang

Commits

Commits on Mar 27, 2026

subtype: isolate `Union` state in `subtype_ccheck` to prevent exponential hang

aviatesk
and
claude
committed
subtype: remove dead `envout` save/restore in `subtype_ccheck`

aviatesk
and
claude
committed
subtype: DRY next_union_state, remove dead nmerge guard

aviatesk
and
claude
committed
subtype: replace merge_env with env_unchanged check in subtype_ccheck

aviatesk
and
claude
committed
Add regression test cases
aviatesk
committed

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