Landing: 17ab71c1aa6d
Project / Subsystem
gcc / gcc
Date
2026-07-23
Author
Richard Biener
Commit
17ab71c1aa6d6d9f2fdcde61dfea8af478a9936d
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc
- patch_id
- —
- commit_hash
- 17ab71c1aa6d6d9f2fdcde61dfea8af478a9936d
- source_type
- github
- headline
- Avoid allocating stmt_vec_info for labels in vectorizer.
- tldr
- Vectorizer no longer allocates stmt_vec_info for labels, simplifying internal data structures.
- author
- Richard Biener
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • vectorization
- • compiler internals
- • optimization
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-23T00:00:00.000Z
This change optimizes the GCC vectorizer by preventing the allocation of stmt_vec_info structures for labels. This is a cleanup measure as these structures are not needed for labels. The modification affects tree-vect-loop.cc, tree-vect-slp.cc, and tree-vect-data-refs.cc, ensuring that only relevant statements are processed.