Landing: 7ae96151ed91
Project / Subsystem
gcc / middle-end
Date
2026-09-03
Author
Kyrylo Tkachov
Commit
7ae96151ed91609c331d7199e71cf14072c120fd
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- middle-end
- patch_id
- —
- commit_hash
- 7ae96151ed91609c331d7199e71cf14072c120fd
- source_type
- github
- headline
- Check GIMPLE memory LHSs as stores
- tldr
- Correctly identifies GIMPLE memory LHSs as stores for exception analysis, improving safety.
- author
- Kyrylo Tkachov
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • optimization
- • middle-end
- • exceptions
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-03T00:00:00.000Z
This commit corrects the handling of memory Left-Hand Sides (LHSs) in GIMPLE (GCC’s Intermediate Representation) within the exception analysis. Previously, gimple_could_trap_p_1 incorrectly used tree_could_trap_p for memory LHSs when store checks were requested, potentially misclassifying them as non-trapping loads. The changes ensure that memory LHSs are now checked using gimple_store_p and lhs_could_trap_p, correctly identifying them as stores and preserving non-call exception information for constructs like GIMPLE_CALL results.