[gcc/devel/omp/gcc-12] Merge branch 'releases/gcc-12' into devel/omp/gcc-12

[Tobias Burnus]

https://gcc.gnu.org/g:0010ad7047c47e6ee7fb469753d8776ae8d9b9b3

commit 0010ad7047c47e6ee7fb469753d8776ae8d9b9b3
Merge: de28004fa5f 4ce316ca54c
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Fri Sep 9 15:38:50 2022 +0200

    Merge branch 'releases/gcc-12' into devel/omp/gcc-12
    
    Merge up to r12-8753-g4ce316ca54c863cf0fd4257ba0ab768ab83c62e5 (9th Sep 2022)

Diff:

 gcc/ChangeLog                                      |  7 +++
 gcc/DATESTAMP                                      |  2 +-
 gcc/config/rs6000/rtems.h                          |  3 +-
 gcc/config/rs6000/t-rtems                          |  5 ++
 gcc/fortran/ChangeLog                              |  9 ++++
 gcc/fortran/trans-expr.cc                          |  7 ++-
 gcc/testsuite/ChangeLog                            |  8 +++
 gcc/testsuite/g++.dg/opt/pr106860.C                | 23 +++++++++
 gcc/testsuite/g++.dg/vect/pr106841.cc              | 52 ++++++++++++++++++++
 gcc/testsuite/gcc.dg/torture/pr106809.c            | 28 +++++++++++
 gcc/testsuite/gfortran.dg/PR100136.f90             | 39 +++++++++++++++
 gcc/tree-ssa-loop-split.cc                         | 16 +++---
 gcc/tree-ssa-sccvn.cc                              | 57 ++++++++++++----------
 gcc/tree-vect-slp.cc                               |  9 ++++
 libstdc++-v3/ChangeLog                             | 26 ++++++++++
 libstdc++-v3/include/bits/regex_compiler.tcc       | 10 ++--
 libstdc++-v3/include/bits/std_thread.h             |  8 ++-
 libstdc++-v3/include/std/future                    |  4 +-
 .../testsuite/28_regex/basic_regex/106607.cc       | 25 ++++++++++
 libstdc++-v3/testsuite/30_threads/async/106695.cc  | 29 +++++++++++
 libstdc++-v3/testsuite/30_threads/thread/106695.cc | 21 ++++++++
 21 files changed, 342 insertions(+), 46 deletions(-)