Landing: 9f82055b86c0
Project / Subsystem
gcc / match
Date
2026-08-21
Author
Andrea Pinski
Commit
9f82055b86c06511ff4f19939cbd7765bf3395fe
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- match
- patch_id
- —
- commit_hash
- 9f82055b86c06511ff4f19939cbd7765bf3395fe
- source_type
- github
- headline
- match: Use wi::to_wide instead of tree_to_uhwi in mul_hi/mul_lo
- tldr
- Replaced tree_to_uhwi with wi::to_wide in mul_hi and mul_lo for a minor compile-time speedup.
- author
- Andrea Pinski
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • compile-time
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-08-21T00:00:00.000Z
The match-tree-optimization code in GCC has been updated to use wi::to_wide instead of tree_to_uhwi in the mul_hi and mul_lo patterns. This change is a small compile-time optimization, as wi::to_wide is expected to have minimal overhead in this context, potentially leading to slightly faster compilation.