Landing: 665394525f55

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Project / Subsystem

gcc / gcc/fortran

Date

2026-06-07

Author

Kwok Cheung Yeung

Commit

665394525f551fa36c43b2b1c110bab368c27376

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gcc/fortran
patch_id: —
commit_hash: 665394525f551fa36c43b2b1c110bab368c27376
source_type: github
headline: OpenMP: Fortran target constructs gain map iterator support
tldr: GCC now supports iterators in 'map' clauses of OpenMP 'target' constructs in Fortran, enabling more flexible data mapping for offloading.
author: Kwok Cheung Yeung
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • openmp
• fortran
• offloading
• iterators
• data-mapping
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/665394525f551fa36c43b2b1c110bab368c27376
date: 2026-06-07T00:00:00.000Z

This GCC update enhances the Fortran front-end to support iterators within ‘map’ clauses of OpenMP ‘target’ constructs. This allows Fortran programmers to use iterative patterns when defining which data should be moved to and from accelerator devices for parallel computation. The change also includes special handling in libgomp for mapping arrays of derived types, ensuring correct behavior for complex data structures.