Landing: 7b804275b251
Project / Subsystem
gcc / middle-end
Date
2026-05-04
Author
Richard Biener
Commit
7b804275b251cabc9699717713f3870b89ab3395
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- middle-end
- patch_id
- —
- commit_hash
- 7b804275b251cabc9699717713f3870b89ab3395
- source_type
- github
- headline
- Preserve edge flags in cleanup_control_expr_graph.
- tldr
- The cleanup_control_expr_graph function now preserves edge flags like EDGE_IRREDUCIBLE_LOOP, instead of clearing them unintentionally.
- author
- Richard Biener
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • middle-end
- • cfg
- • bugfix
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-05-04T00:00:00.000Z
The cleanup_control_expr_graph function was clearing all edge flags, including EDGE_IRREDUCIBLE_LOOP, when setting EDGE_FALLTHRU. It now only clears EDGE_TRUE_VALUE and EDGE_FALSE_VALUE, preserving other important flags. A new testcase, gcc.dg/torture/pr125156.c, was added to ensure the correct behavior.