Landing: 59b82e3f4f88
Project / Subsystem
gcc / tree-eh
Date
2026-09-01
Author
Andrea Pinski
Commit
59b82e3f4f88a02158c56921effcc078ab1a5580
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- tree-eh
- patch_id
- —
- commit_hash
- 59b82e3f4f88a02158c56921effcc078ab1a5580
- source_type
- github
- headline
- tree-eh: Fix lhs_could_trap_p for *this pointer accesses
- tldr
- Correctly handle pointer dereferences on the left-hand side of assignments that might trap.
- author
- Andrea Pinski
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • c++
- • optimization
- • exception handling
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-01T00:00:00.000Z
The compiler previously treated this->a as non-trapping on the left-hand side of an assignment, which could be incorrect if the memory was not read-only. This change refactors tree_could_trap_p into a new function tree_could_trap_1 that properly considers the left-hand side, resolving issues with constant method this pointer accesses.