Landing: ab0dd7d5e16f
Project / Subsystem
gcc / openmp
Date
2026-06-30
Author
Paul-Antoine Arras
Commit
ab0dd7d5e16fcd90a58be84ec45a8a46994cf176
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- openmp
- patch_id
- —
- commit_hash
- ab0dd7d5e16fcd90a58be84ec45a8a46994cf176
- source_type
- github
- headline
- OpenMP gets runtime entry points for worksharing constructs
- tldr
- GCC adds support for OMPT-aware runtime entry points for worksharing constructs, controlled by new compiler flags.
- author
- Paul-Antoine Arras
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • openmp
- • ompt
- • runtime
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-06-30T00:00:00.000Z
GCC introduces two new flags, -fopenmp-ompt and -fopenmp-ompt-detailed, to emit OMPT-aware runtime entry points around OpenMP worksharing constructs. The -fopenmp-ompt flag replaces plain worksharing functions with _start and _end variants, while -fopenmp-ompt-detailed additionally includes a _dispatch stub. New stubs are added to libgomp to prepare for future OMPT callback invocations, aiding in performance analysis and debugging of OpenMP applications.