Landing: d284bf3a1349
Project / Subsystem
gcc / gcc/frange
Date
2026-07-15
Author
Aldy Hernandez
Commit
d284bf3a1349c1bb5e57a71b5d6b46de36f4db13
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/frange
- patch_id
- —
- commit_hash
- d284bf3a1349c1bb5e57a71b5d6b46de36f4db13
- source_type
- github
- headline
- Consolidate signed-zero canonicalization of floating-point range endpoints.
- tldr
- Standardizes how +0.0 and -0.0 are represented in floating-point ranges.
- author
- Aldy Hernandez
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • gcc
- • floating-point
- • optimization
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-15T00:00:00.000Z
This change unifies the signed-zero canonicalization for floating-point range endpoints within the frange library. Previously, set() and flush_denormals_to_zero() handled zero endpoints differently, potentially leading to inconsistencies. By ensuring a single representation for zero endpoints, this commit lays the groundwork for more robust handling of signed zeros and simplifies range comparisons.