Landing: 5af52562e3fb
Project / Subsystem
gcc / gcc
Date
2026-08-07
Author
Andrea Pinski
Commit
5af52562e3fb59bcecaa25ef834424e7f7076400
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc
- patch_id
- —
- commit_hash
- 5af52562e3fb59bcecaa25ef834424e7f7076400
- source_type
- github
- headline
- Improve tree_expr_nonnegative_p by using the ranger [PR111959]
- tldr
- Enhances GCC's non-negative expression checking by integrating range analysis for better optimization.
- author
- Andrea Pinski
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • range analysis
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-08-07T00:00:00.000Z
GCC’s tree_single_nonnegative_p function is improved by utilizing the range analysis information provided by the ranger. This change aims to make the check for non-negative expressions more accurate and efficient, potentially leading to better optimization opportunities. A test case that would always fail due to the improved analysis has been removed.