Landing: 6bae0c37c955
Project / Subsystem
gcc / gcc
Date
2026-05-07
Author
Richard Sandiford
Commit
6bae0c37c95565171657a15ab4dcfd13a6898769
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc
- patch_id
- —
- commit_hash
- 6bae0c37c95565171657a15ab4dcfd13a6898769
- source_type
- github
- headline
- Add post_ra_split_completed to allow later condition-code clobbers.
- tldr
- Allows targets to introduce new condition-code register clobbers after the first post-RA split, converting the RX port to this form.
- author
- Richard Sandiford
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • register allocation
- • condition code
- • RX port
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-05-07T00:00:00.000Z
This change introduces a new flag, post_ra_split_completed, to delay the point at which the condition-code register is considered live. This allows targets to introduce new clobbers of the condition-code register later in the compilation process (specifically, after the first post-RA split), which can improve code generation. The RX port is converted to use this new mechanism.