[issue45773] Compiler hangs during jump elimination

Change by Brandt Bucher : -- priority: release blocker -> resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___

[issue45773] Compiler hangs during jump elimination

miss-islington added the comment: New changeset ff6948b1286c854ee77dfc0b23b9d828b36873e4 by Miss Islington (bot) in branch '3.10': bpo-45773: Remove invalid peephole optimizations (GH-31066) https://github.com/python/cpython/commit/ff6948b1286c854ee77dfc0b23b9d828b36873e4 --

[issue45773] Compiler hangs during jump elimination

Change by miss-islington : -- nosy: +miss-islington nosy_count: 3.0 -> 4.0 pull_requests: +29284 pull_request: https://github.com/python/cpython/pull/31101 ___ Python tracker

[issue45773] Compiler hangs during jump elimination

Mark Shannon added the comment: New changeset e0433c1e70254d4d0357a9e14596929a04bdf769 by Brandt Bucher in branch 'main': bpo-45773: Remove invalid peephole optimizations (GH-31066) https://github.com/python/cpython/commit/e0433c1e70254d4d0357a9e14596929a04bdf769 --

[issue45773] Compiler hangs during jump elimination

Change by Brandt Bucher : -- pull_requests: +29251 pull_request: https://github.com/python/cpython/pull/31066 ___ Python tracker ___

[issue45773] Compiler hangs during jump elimination

Brandt Bucher added the comment: My fix for this seems to have erroneously added two invalid new jump threads: POP_JUMP_IF_FALSE(a) to JUMP_IF_FALSE_OR_POP(b) is folded into POP_JUMP_IF_FALSE(b) POP_JUMP_IF_TRUE(a) to JUMP_IF_TRUE_OR_POP(b) is folded into POP_JUMP_IF_TRUE(b) The good news

[issue45773] Compiler hangs during jump elimination

Change by Irit Katriel : -- status: pending -> closed ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue45773] Compiler hangs during jump elimination

Change by Brandt Bucher : -- resolution: -> fixed stage: patch review -> resolved status: open -> pending ___ Python tracker ___

[issue45773] Compiler hangs during jump elimination

Brandt Bucher added the comment: New changeset a89bbde83fe7f8cc347341e7ec57cda3ba312530 by Brandt Bucher in branch '3.10': [3.10] bpo-45773: Stop "optimizing" certain jump patterns (GH-29526) https://github.com/python/cpython/commit/a89bbde83fe7f8cc347341e7ec57cda3ba312530 --

[issue45773] Compiler hangs during jump elimination

Change by Brandt Bucher : -- pull_requests: +27776 pull_request: https://github.com/python/cpython/pull/29526 ___ Python tracker ___

[issue45773] Compiler hangs during jump elimination

Brandt Bucher added the comment: New changeset 27b69e60daa7b191ee6bc76fb6d5fb7d793062ab by Brandt Bucher in branch 'main': bpo-45773: Stop "optimizing" certain jump patterns (GH-29505) https://github.com/python/cpython/commit/27b69e60daa7b191ee6bc76fb6d5fb7d793062ab --

[issue45773] Compiler hangs during jump elimination

Change by Brandt Bucher : -- keywords: +patch pull_requests: +27756 stage: -> patch review pull_request: https://github.com/python/cpython/pull/29505 ___ Python tracker ___

[issue45773] Compiler hangs during jump elimination

New submission from Brandt Bucher : The following code hangs during compilation on 3.11 and 3.10: >>> while True or spam: pass Our peepholer gets stuck in a loop, repeatedly "optimizing" instruction 4 (POP_JUMP_IF_TRUE -> JUMP_ABSOLUTE): 1 0 JUMP_ABSOLUTE0 (to 0)