[gcc/devel/omp/gcc-11] Merge branch 'releases/gcc-11' into devel/omp/gcc-11

[Tobias Burnus]

https://gcc.gnu.org/g:23d1d32542202f28750b450cc550a0a78975d2f2

commit 23d1d32542202f28750b450cc550a0a78975d2f2
Merge: 6db84ecbd5f efb6bda7f51
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Tue May 18 09:06:34 2021 +0200

    Merge branch 'releases/gcc-11' into devel/omp/gcc-11
    
    Merge up to efb6bda7f5136d59be254b10d2b81ba28be8ecfb (May 18, 2021)

Diff:

 contrib/ChangeLog                                  |  9 +++
 gcc/ChangeLog                                      | 25 ++++++
 gcc/DATESTAMP                                      |  2 +-
 gcc/config/arm/arm.c                               | 26 +++++-
 gcc/config/arm/sync.md                             | 28 +++----
 gcc/config/arm/thumb1.md                           | 15 ++++
 gcc/configure                                      |  3 +-
 gcc/configure.ac                                   |  3 +-
 gcc/fortran/ChangeLog                              |  8 ++
 gcc/fortran/resolve.c                              |  6 ++
 gcc/testsuite/ChangeLog                            | 15 ++++
 gcc/testsuite/gcc.target/arm/pr99977.c             |  6 ++
 gcc/testsuite/gfortran.dg/gomp/workshare-59.f90    | 26 ++++++
 libgomp/ChangeLog                                  |  9 +++
 libstdc++-v3/ChangeLog                             | 28 +++++++
 libstdc++-v3/include/bits/atomic_wait.h            | 28 +++++--
 libstdc++-v3/include/experimental/bits/fs_path.h   |  2 +-
 .../27_io/filesystem/path/construct/100630.cc      | 14 ++++
 .../29_atomics/atomic/wait_notify/100334.cc        | 93 ++++++++++++++++++++++
 .../filesystem/path/construct/100630.cc            | 14 ++++
 20 files changed, 330 insertions(+), 30 deletions(-)