SIL Parser: Use a Set instead of a Vector for zombie functions to avoid duplicates #6478
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Author
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@swift-ci Please smoke test |
Contributor
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Do we iterate over this? If so, it might be better to use a SetVector, to be sure it's deterministic. |
Author
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@jrose-apple We only iterate over it during destruction, to set all functions as zombies basically, we do not need need determinism |
Author
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Swift CI is down unfortunately, can't merge into master even though this is quite the blocker for our builds / tests :( |
Contributor
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Linux failure is unrelated. Merging. |
Contributor
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I meant OS X failure is unrelated. |
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We had duplicate function definitions in SIL, those got inserted more than once into the potentially zombie functions vector, causing a crash / duplicate work on them. This caused a bug in SIL/Parser/array_roundtrip.swift
This PR changes the data structure to a Set to avoid duplications
Fixes
rdar://problem/29780448
rdar://problem/29767444