Landing: 110e034f8b58
Project / Subsystem
gcc / fortran
Date
2026-08-24
Author
Jerry DeLisle
Commit
110e034f8b58529576c7168bfcda6d42336fbf89
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- fortran
- patch_id
- —
- commit_hash
- 110e034f8b58529576c7168bfcda6d42336fbf89
- source_type
- github
- headline
- Fortran: Add deep copy mode to subreference array argument conversion.
- tldr
- New deep copy mode for Fortran array arguments in subreferences improves handling of allocatable components.
- author
- Jerry DeLisle
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • fortran
- • optimization
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-08-24T00:00:00.000Z
A new DEEP_COPY mode has been added to the gfc_conv_subref_array_arg function in GCC’s Fortran front-end. This mode, defaulting to false, allows temporary array arguments to have their own distinct allocatable components, rather than sharing them with the original argument. This change, which does not affect existing callers, ensures proper memory management for allocatable components by deallocating them after the call, and also fixes two latent issues in the pass_optional path related to descriptor assignment and string length handling.