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gh-124871: fix 'visited' tracking in compiler's reachability analysis #124952

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Merged
merged 2 commits into from
Oct 4, 2024
Merged

gh-124871: fix 'visited' tracking in compiler's reachability analysis #124952

merged 2 commits into from
Oct 4, 2024

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iritkatriel
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@iritkatriel iritkatriel commented Oct 3, 2024 •
edited by bedevere-app bot
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This fixes reachability analysis to mark blocks as visited once they are inserted to the queue (as is done in other traversals), and then we can remove an assertion that failed for the code in the issue.

Fixes #124871.

@iritkatriel iritkatriel added type-bug An unexpected behavior, bug, or error needs backport to 3.13 bugs and security fixes labels Oct 3, 2024
@bedevere-app bedevere-app bot mentioned this pull request Oct 3, 2024
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@iritkatriel iritkatriel requested a review from carljm October 3, 2024 21:35
@iritkatriel iritkatriel merged commit f474391 into python:main Oct 4, 2024
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Thanks @iritkatriel for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13.
🐍🍒⛏🤖

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Oct 4, 2024
@iritkatriel @miss-islington
pythongh-124871: fix 'visited' tracking in compiler's reachability an…
119dbe9 
…alysis (pythonGH-124952)

(cherry picked from commit f474391)

Co-authored-by: Irit Katriel <[email protected]>
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bedevere-app bot commented Oct 4, 2024

GH-124977 is a backport of this pull request to the 3.13 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.13 bugs and security fixes label Oct 4, 2024
Yhg1s pushed a commit that referenced this pull request Oct 4, 2024
@miss-islington @iritkatriel
[3.13] gh-124871: fix 'visited' tracking in compiler's reachability a…
b87aea6 
…nalysis (GH-124952) (#124977)

gh-124871: fix 'visited' tracking in compiler's reachability analysis (GH-124952)
(cherry picked from commit f474391)

Co-authored-by: Irit Katriel <[email protected]>
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hugovk commented Oct 7, 2024

Tip for next time: please upgrade blurb so it doesn't include spaces in the paths. Thanks!

https://discuss.python.org/t/new-blurb-1-2-please-upgrade/59159

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@carljm carljm carljm approved these changes

@markshannon markshannon Awaiting requested review from markshannon markshannon is a code owner

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remove_unreachable: Assertion `target->b_predecessors == 0 || target == b->b_next' failed
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