Landing: b5e6f5d2d435
Project / Subsystem
gcc / middle-end
Date
2026-07-24
Author
Kael Andrew Alonzo Franco
Commit
b5e6f5d2d435aba79ed8568f19da25378c716714
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- middle-end
- patch_id
- —
- commit_hash
- b5e6f5d2d435aba79ed8568f19da25378c716714
- source_type
- github
- headline
- Simplify atomic built-in handling.
- tldr
- Replaces INTEGER_CST + expand_normal with tree_to_uwhi for atomic operations.
- author
- Kael Andrew Alonzo Franco
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • atomic
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-24T00:00:00.000Z
GCC simplifies the handling of atomic operations by replacing the ‘INTEGER_CST + expand_normal’ pattern with a more efficient and readable approach using tree_fits_uwhi_p and tree_to_uwhi. This change targets the fold_builtin_atomic_always_lock_free function, improving code clarity and potentially reducing compiler overhead for atomic built-ins.