Landing: 6c3a8c553f98
Project / Subsystem
gcc / vect
Date
2026-07-24
Author
Alex Coplan
Commit
6c3a8c553f98c8bdf42a24f49cbaa206b55c80d5
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- vect
- patch_id
- —
- commit_hash
- 6c3a8c553f98c8bdf42a24f49cbaa206b55c80d5
- source_type
- github
- headline
- vect: Drop unnecessary codes on two_operators SLP nodes
- tldr
- Cleans up SLP node construction by removing unnecessary tree codes, improving consistency.
- author
- Alex Coplan
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • vect
- • optimization
- • SLP
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-24T00:00:00.000Z
This commit removes the setting of specific tree codes (like PLUS_EXPR or MINUS_EXPR) on synthetic nodes created during SLP (Superword-Level Parallelism) vectorization for two_operators cases. These codes are not needed by the downstream complex add pattern, which relies on the representative statement’s code. Leaving these fields as ERROR_MARK aligns with the recent assert that restricts SLP node codes and is considered a non-functional cleanup.