[gcc/devel/omp/gcc-10] Merge remote-tracking branch 'origin/releases/gcc-10' into devel/omp/gcc-10

[Tobias Burnus]

https://gcc.gnu.org/g:f88433d330e45ac26828ce3902e117fb26822b10

commit f88433d330e45ac26828ce3902e117fb26822b10
Merge: 2a583228b05 c0746a1beb1
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Tue Aug 25 14:36:53 2020 +0200

    Merge remote-tracking branch 'origin/releases/gcc-10' into devel/omp/gcc-10
    
    Merged up to c0746a1beb1ba073c7981eb09f55b3d993b32e5c (2020-08-25).

Diff:

 gcc/ChangeLog                         | 17 +++++++++++++++++
 gcc/DATESTAMP                         |  2 +-
 gcc/cp/ChangeLog                      |  6 ++++++
 gcc/cp/optimize.c                     | 10 ++--------
 gcc/doc/extend.texi                   |  6 +++---
 gcc/doc/invoke.texi                   |  2 +-
 gcc/testsuite/ChangeLog               | 12 ++++++++++++
 gcc/testsuite/g++.dg/other/final8.C   |  8 ++++++--
 gcc/testsuite/gfortran.dg/pr96486.f90 |  9 +++++++++
 libgfortran/ChangeLog                 |  9 +++++++++
 libgfortran/intrinsics/env.c          |  7 ++-----
 libstdc++-v3/ChangeLog                | 12 ++++++++++++
 12 files changed, 80 insertions(+), 20 deletions(-)