Landing: bfdd3d3d8b68
Project / Subsystem
gcc / gcc/cselim
Date
2026-09-24
Author
Thomas Schwinge
Commit
bfdd3d3d8b6877435898c89393177bbcbd713309
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/cselim
- patch_id
- —
- commit_hash
- bfdd3d3d8b6877435898c89393177bbcbd713309
- source_type
- github
- headline
- cselim: Skip store replacement for certain conditional stores
- tldr
- Fixes a regression in conditional store optimization that incorrectly reduced loop dependency counts.
- author
- Thomas Schwinge
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • regression
- • libgomp
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-24T00:00:00.000Z
This commit reverts a change in the cselim pass that affected conditional store optimizations. The previous change caused a regression in a libgomp test case by incorrectly reducing the number of loops carrying no dependency. The fix re-enables the previous behavior for certain conditional stores, ensuring correct analysis of loop dependencies.