[PATCH] D42352: [ReleaseNotes] Mention OpenMP Tools Interface in runtime library

[Jonas Hahnfeld via Phabricator via cfe-commits]

Hahnfeld created this revision.
Hahnfeld added reviewers: rsmith, ABataev, hans.
Herald added subscribers: cfe-commits, guansong.

The OpenMP runtime has no dedicated Release Notes, so add it to Clang's section about OpenMP.


Repository:
  rC Clang

https://reviews.llvm.org/D42352

Files:
  docs/ReleaseNotes.rst


Index: docs/ReleaseNotes.rst
===================================================================
--- docs/ReleaseNotes.rst
+++ docs/ReleaseNotes.rst
@@ -222,6 +222,14 @@
 - Added support for `reduction`-based clauses on `task`-based directives from
   upcoming OpenMP 5.0.
 
+- The LLVM OpenMP runtime `libomp` now supports the OpenMP Tools Interface (OMPT)
+  on x86, x86_64, AArch64, and PPC64 on Linux, Windows, and mac OS. Performance
+  measurements show that the changes result in a slowdown of at most 4 percent
+  in micro-benchmarks. However, if you observe a larger impact on one of your
+  applications, please rebuild the runtime library with `-DLIBOMP_OMPT_SUPPORT=OFF`
+  and file a bug at `LLVM's Bugzilla <https://bugs.llvm.org/` or send a message
+  to the `OpenMP development list <http://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev>`.
+
 Internal API Changes
 --------------------
 


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