Landing: da7dc333c4a9
Project / Subsystem
gcc / avoid-store-forwarding
Date
2026-03-27
Author
Konstantinos Eleftheriou
Commit
da7dc333c4a9ef997a9f3082fba73abf0380d684
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- avoid-store-forwarding
- patch_id
- —
- commit_hash
- da7dc333c4a9ef997a9f3082fba73abf0380d684
- source_type
- github
- headline
- Avoid-store-forwarding: Continue BB analysis after complex memory ops
- tldr
- The avoid-store-forwarding pass now continues analysis after encountering complex memory operations, potentially catching more optimization opportunities.
- author
- Konstantinos Eleftheriou
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • store-forwarding
- • gcc
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-03-27T00:00:00.000Z
The avoid-store-forwarding pass in GCC previously stopped analyzing a basic block after encountering a complex memory operation. This change replaces the early return with a flush-and-continue, clearing pending store candidates and continuing the scan. This allows the pass to identify and exploit store-forwarding opportunities even after complex memory operations, potentially improving performance.