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

[Tobias Burnus]

https://gcc.gnu.org/g:4d83e2f9d03cd4d8ddbd7dd25626604c03fcbf55

commit 4d83e2f9d03cd4d8ddbd7dd25626604c03fcbf55
Merge: 040aef637b3 9ee61d2b51d
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Sun May 23 13:18:56 2021 +0200

    Merge branch 'releases/gcc-11' into devel/omp/gcc-11
    
    Merge up to 9ee61d2b51df012c659359873637cc2162ecccf3 (May 23, 2021).

Diff:

 gcc/ChangeLog                                      | 12 +++++
 gcc/DATESTAMP                                      |  2 +-
 gcc/ada/ChangeLog                                  | 22 ++++++++
 gcc/ada/gcc-interface/decl.c                       | 61 +++++++++++-----------
 gcc/ada/gcc-interface/trans.c                      | 12 +++--
 gcc/cp/ChangeLog                                   | 33 ++++++++++++
 gcc/cp/cvt.c                                       |  2 +-
 gcc/cp/decl.c                                      | 33 ++++++++++--
 gcc/cp/tree.c                                      | 25 ++++++---
 gcc/cp/typeck2.c                                   | 26 ---------
 gcc/fortran/intrinsic.texi                         |  4 +-
 gcc/testsuite/ChangeLog                            | 43 +++++++++++++++
 gcc/testsuite/g++.dg/cpp2a/desig18.C               | 17 ++++++
 gcc/testsuite/g++.target/s390/pr100281-1.C         | 10 ++++
 gcc/testsuite/g++.target/s390/pr100281-2.C         |  9 ++++
 gcc/testsuite/gnat.dg/derived_type7.adb            |  9 ++++
 gcc/testsuite/gnat.dg/derived_type7.ads            | 13 +++++
 gcc/testsuite/gnat.dg/unchecked_convert5.adb       |  2 +-
 gcc/testsuite/gnat.dg/unchecked_convert6.adb       |  2 +-
 gcc/tree.c                                         | 29 ++++++----
 libsanitizer/ChangeLog                             | 11 ++++
 .../sanitizer_common_interceptors_ioctl.inc        |  9 ----
 .../sanitizer_platform_limits_posix.cpp            | 11 ----
 .../sanitizer_platform_limits_posix.h              | 10 ----
 libstdc++-v3/ChangeLog                             | 11 ++++
 libstdc++-v3/include/std/charconv                  |  3 +-
 libstdc++-v3/src/c++17/floating_to_chars.cc        |  4 +-
 libstdc++-v3/testsuite/20_util/to_chars/double.cc  |  1 +
 libstdc++-v3/testsuite/20_util/to_chars/float.cc   |  1 +
 .../testsuite/20_util/to_chars/long_double.cc      |  1 +
 30 files changed, 309 insertions(+), 119 deletions(-)