Landing: a202c707bea3
Project / Subsystem
gcc / sra
Date
2026-05-12
Author
Martin Jambor
Commit
a202c707bea3ff021b44aa00c0570798a30aae31
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- sra
- patch_id
- —
- commit_hash
- a202c707bea3ff021b44aa00c0570798a30aae31
- source_type
- github
- headline
- SRA: Fix build_user_friendly_ref_for_offset for bit-fields
- tldr
- The compiler now correctly handles bit-field propagation with Scalar Replacement of Aggregates (SRA), improving warning accuracy and fixing a verification issu…
- author
- Martin Jambor
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • sra
- • bit-fields
- • gcc
- discussion_id_link
- github:gcc-mirror/gcc#117217
- bugzilla_pr
- —
- date
- 2026-05-12T00:00:00.000Z
This commit fixes an issue in GCC’s Scalar Replacement of Aggregates (SRA) optimization when propagating bit-field accesses across assignments. The build_user_friendly_ref_for_offset function is updated to accurately represent the expression of new accesses, ensuring that warnings generated are correct. This resolves a discrepancy between the recorded size of the new access and the size reported by get_ref_base_and_extent, fixing a verifier error.