Landing: d6d21c3abd31
Project / Subsystem
gcc / gcc/ivopts
Date
2026-04-27
Author
Andrew Pinski
Commit
d6d21c3abd31b73146df15b626da544eb4a8509a
Source
github
Perf win
Yes
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/ivopts
- patch_id
- —
- commit_hash
- d6d21c3abd31b73146df15b626da544eb4a8509a
- source_type
- github
- headline
- Ivopts: Improve doloop support for enum and bitint types
- tldr
- Extends doloop recognition to enum and bitint types by converting them to a full mode integer type.
- author
- Andrew Pinski
- outcome
- committed
- performance_win
- true
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • loop
- • enum
- • bitint
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-04-27T00:00:00.000Z
This commit extends the loop induction variable (iv) optimization to handle enum and bitint types. Previously, the add_iv_candidate_for_doloop function only supported integer types. This commit modifies the function to accept non-integer types, converting them to a full mode integer type before processing. This change enables doloop optimization for loops using enum and bitint types as induction variables.