Landing: 285e8e2a2bd4
Project / Subsystem
gcc / gcc/tree-ssa
Date
2026-09-10
Author
Andrew MacLeod
Commit
285e8e2a2bd4652e6beaed6e65444c4295a77bc2
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/tree-ssa
- patch_id
- —
- commit_hash
- 285e8e2a2bd4652e6beaed6e65444c4295a77bc2
- source_type
- github
- headline
- Correct ranger transitive table for equality relations
- tldr
- Fixes an error in the value relation transitive table, ensuring correct propagation of equality and inequality.
- author
- Andrew MacLeod
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • compiler-bug
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-10T00:00:00.000Z
The transitive relation table in value-relation.cc has been corrected to accurately reflect the transitive properties of equality and inequality. Previously, it failed to deduce x != z from x == y and y != z, or from x != y and y == z. This update ensures proper propagation of these relations.