gcc-wwwdocs branch master updated. 174d4dd6abf0c164f56a2149377979ed7eeeae1e

gcc-wwwdocs branch master updated. 174d4dd6abf0c164f56a2149377979ed7eeeae1e

[Tobias Burnus]

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- Log -----------------------------------------------------------------
commit 174d4dd6abf0c164f56a2149377979ed7eeeae1e
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Mon Sep 6 16:04:31 2021 +0200

    gcc-12/changes.html: OpenMP 5.1 update
    
    * htdocs/gcc-12/changes.html (Caveats): Item about Fortran and omp_lib.h.
      (OpenMP): More OMP 5.1 features: masked, scope, nothing, error + primary
      in proc_bind.

diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html
index 06d5ea73..946faa49 100644
--- a/htdocs/gcc-12/changes.html
+++ b/htdocs/gcc-12/changes.html
@@ -31,6 +31,7 @@ a work-in-progress.</p>
 <h2>Caveats</h2>
 <ul>
   <li>
+    <strong>C++:</strong>
     Two non-standard <code>std::pair</code> constructors have been deprecated.
     These allowed the use of an rvalue and a literal <code>0</code> to
     construct a pair containing a move-only type and a pointer.
@@ -38,7 +39,14 @@ a work-in-progress.</p>
     member instead of a literal <code>0</code>, as this is portable to other
     C++ implementations.
   </li>
-  <li>...</li>
+  <li>
+    <strong>Fortran:</strong>
+    OpenMP code using the <code>omp_lib.h</code> include file can no longer be
+    compiled with <code>-std=f95</code> but now requires at least
+    <code>-std=f2003</code>. Alternatively, use the <code>omp_lib</code> module,
+    which still supports <code>-std=f95</code> and is recommended to be used
+    instead in general.
+  </li>
 </ul>
 
 
@@ -57,8 +65,12 @@ a work-in-progress.</p>
       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,
-      support for expressing OpenMP directives as C++ 11 attributes has been
-      added, which is an OpenMP 5.1 feature.
+      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.
   </li>
   <li>The new warning flag <code>-Wopenacc-parallelism</code> was added for
       OpenACC. It warns about potentially suboptimal choices related to

-----------------------------------------------------------------------

Summary of changes:
 htdocs/gcc-12/changes.html | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)


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