Landing: b70bb7f63b69
Project / Subsystem
gcc / sh
Date
2026-07-03
Author
Oleg Endo
Commit
b70bb7f63b69008692f66dafa81b632e3149e39c
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- sh
- patch_id
- —
- commit_hash
- b70bb7f63b69008692f66dafa81b632e3149e39c
- source_type
- github
- headline
- SH: Fix PR 124778
- tldr
- Corrects instruction pattern ordering to fix a pass bailout on the SH target.
- author
- Oleg Endo
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • sh
- • bugfix
- • compiler-pass
- discussion_id_link
- github:gcc-mirror/gcc#124778
- bugzilla_pr
- —
- date
- 2026-07-03T00:00:00.000Z
This commit addresses a crash in the decompose_multiword_subregs pass on the SH architecture, caused by an incorrect ordering of instruction patterns in the machine description. By reordering specific extend<mode>si2 patterns, the pass now proceeds correctly, resolving the issue reported in PR 124778.