Landing: 3bbb6932842f
Project / Subsystem
gcc / gccrs
Date
2026-09-10
Author
Philip Herron
Commit
3bbb6932842f1126c9e1ef5fd9e3e4e6188d3dde
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- gccrs
- patch_id
- —
- commit_hash
- 3bbb6932842f1126c9e1ef5fd9e3e4e6188d3dde
- source_type
- github
- headline
- Optimize const function resolution in gccrs
- tldr
- GCC Rust's type query system now avoids resolving non-const functions in const contexts, improving performance.
- author
- Philip Herron
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • gccrs
- • optimization
- • const evaluation
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-10T00:00:00.000Z
Philip Herron refactored the query_type function in gccrs to only fully resolve const functions when operating within a constant evaluation context.
Previously, the system could inadvertently query and resolve non-const functions during method resolution, leading to unnecessary work.
This change optimizes the handling of constant expressions by preventing the full evaluation of unrelated non-constant code paths.