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diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index 18015f8d7c6e..a9b4b0de2906 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -179,6 +179,33 @@ Several additional features/bugfixes have been added to the previous standards: - Improved diagnostics for function pointers. +OpenMP Support in Clang +--------------------- + +OpenMP 3.1 is fully supported and is enabled by default with -fopenmp +which now uses the clang OpenMP library instead of the GCC OpenMP library. +The runtime can be built in-tree. + +In addition to OpenMP 3.1, several important elements of the OpenMP 4.0/4.5 +are supported as well. We continue to aim to complete OpenMP 4.5 + +- ``map`` clause +- task dependencies +- ``num_teams`` clause +- ``thread_limit`` clause +- ``target`` and ``target data`` directive +- ``target`` directive with implicit data mapping +- ``target enter data`` and ``target exit data`` directive +- Array sections [2.4, Array Sections]. +- Directive name modifiers for ``if`` clause [2.12, if Clause]. +- ``linear`` clause can be used in loop-based directives [2.7.2, loop Construct]. +- ``simdlen`` clause [2.8, SIMD Construct]. +- ``hint`` clause [2.13.2, critical Construct]. +- Parsing/semantic analysis of all non-device directives introduced in OpenMP 4.5. + +The codegen for OpenMP constructs was significantly improved allowing us to produce much more stable and fast code. +Full test cases of IR are also implemented. + CUDA Support in Clang --------------------- Clang has experimental support for end-to-end CUDA compilation now: |