Cumulative update of the OpenMP 5.x changes in GCC 12.
I hope it covers all essential changes. Of course,
some other could be added like 'omp target in_reduction',
which was missing before (oversight) and possibly other
things, which I have missed.
For the last bullet: the implementation-status documentation
is new – but even if it were not, linking to it makes sense.
I kept adding and removing a 'full' after the "The",
which sounds better but while the list in libgomp.texi is
extensive, it does not have "full" coverage of all changes.
Additionally, as it is new, a "now" could be added after
"can".
Suggestions, additions, wording changes?
Tobias
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gcc-12/changes.html: Update OpenMP status
diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html
index 81f62fe3..bbb8f2ac 100644
--- a/htdocs/gcc-12/changes.html
+++ b/htdocs/gcc-12/changes.html
@@ -70,20 +70,36 @@ a work-in-progress.</p>
<h2 id="languages">New Languages and Language specific improvements</h2>
<ul>
- <li>OpenMP 5.0 support has been extended: The <code>close</code> map modifier
+ <li>OpenMP
+ <ul>
+ <li>OpenMP 5.0 support has been extended: The <code>close</code> map modifier
and the <code>affinity</code> clause are now supported and for Fortran
additionally the following features which were available in C and C++
- before: <code>depobj</code>, <code>mutexinoutset</code> and
- <code>iterator</code> can now also be used with the <code>depend</code>
- clause, <code>defaultmap</code> has been updated for OpenMP 5.0, and the
- <code>loop</code> directive and combined directives
- involving <code>master</code> directive have been added. Additionally,
- the following OpenMP 5.1 feature have been added: support for expressing
+ before: <code>declare variant</code> is now available,
+ <code>depobj</code>, <code>mutexinoutset</code> and <code>iterator</code>
+ can now also be used with the <code>depend</code> clause,
+ <code>defaultmap</code> has been updated for OpenMP 5.0, and the
+ <code>loop</code> directive and combined directives involving
+ <code>master</code> directive have been added.</li>
+ <li>The following OpenMP 5.1 feature have been added: support for expressing
OpenMP directives as C++ 11 attributes, the <code>masked</code> and
<code>scope</code> construct, the <code>nothing</code> and
<code>error</code> directives, and using <code>primary</code> with the
<code>proc_bind</code> clause and <code>OMP_PROC_BIND</code> environment
- variable.
+ variable, the <code>reproducible</code> and <code>unconstrained</code>
+ modifiers to the <code>order</code> clause, and, for C/C++ only, the
+ align- and allocate-modifiers to the <code>allocate</code> clause and
+ the <code>atomic</code> extensions are now available. The
+ <code>OMP_PLACE</code> environment variable supports the OpenMP 5.1
+ features and the <code>OMP_NUM_TEAMS</code> and
+ <code>OMP_TEAMS_THREAD_LIMIT</code> environement variables and their
+ associated API routines are now supported as well as the memory-allocation
+ routines added for Fortran and extended for C/C++ in OpenMP 5.1. In
+ Fortran code, strictly-structured blocks can be used.</li>
+ <li>The <a
+ href="https://gcc.gnu.org/onlinedocs/libgomp/OpenMP-Implementation-Status.html";
+ >OpenMP Implementation Status</a> can be found in the libgomp manual.</li>
+ </ul>
</li>
<li>The new warning flag <code>-Wopenacc-parallelism</code> was added for
OpenACC. It warns about potentially suboptimal choices related to
