Landing: cc1ca3c60f20
Project / Subsystem
gcc / gcc/vectorization
Date
2026-04-28
Author
Richard Biener
Commit
cc1ca3c60f20621565dffa6c64a5105c10e8b894
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/vectorization
- patch_id
- —
- commit_hash
- cc1ca3c60f20621565dffa6c64a5105c10e8b894
- source_type
- github
- headline
- Adjust x86 strided vectorization tests for cost comparison.
- tldr
- Strided vectorization tests in GCC are updated with explicit cost comparison flags and adjusted code generation expectations.
- author
- Richard Biener
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • gcc
- • vectorization
- • x86
- • testing
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-04-28T00:00:00.000Z
The gcc.target/i386/vect-strided-?.c tests have been modified with explicit cost comparison settings. Variants with cost comparison disabled are retained, while new variants (-?b.c) enable cost comparison and adjust expected code generation accordingly. This allows for testing the vectorizer’s behavior when cost comparison influences the choice between V2SImode and V4SImode with shuffles.