[gcc/devel/sphinx] Merge branch 'master' into devel/sphinx

[Martin Liska]

https://gcc.gnu.org/g:022cc8a989a810c5aaf9e1690f7bc2a510e2e64c

commit 022cc8a989a810c5aaf9e1690f7bc2a510e2e64c
Merge: 0d9e5270f10 c1681f22b4b
Author: Martin Liska <mliska@suse.cz>
Date:   Thu Jun 3 12:52:48 2021 +0200

    Merge branch 'master' into devel/sphinx

Diff:

 ChangeLog                                          |   4 +
 MAINTAINERS                                        |   6 +
 gcc/ChangeLog                                      |  64 ++++
 gcc/DATESTAMP                                      |   2 +-
 gcc/c/c-typeck.c                                   |   7 +-
 gcc/common.opt                                     |  11 +-
 gcc/config/arc/arc.md                              |  28 --
 gcc/config/rs6000/rs6000-logue.c                   |  11 +-
 gcc/config/xtensa/xtensa.h                         |   7 +-
 gcc/cp/ChangeLog                                   |   8 +
 gcc/cp/call.c                                      |   6 +-
 gcc/cp/pt.c                                        |   1 +
 gcc/cp/semantics.c                                 |  28 +-
 gcc/dwarf2out.c                                    | 345 ++++++++++++++-------
 gcc/opts.c                                         |  41 +--
 gcc/ree.c                                          |  30 +-
 gcc/testsuite/ChangeLog                            |  19 ++
 gcc/testsuite/g++.dg/gomp/depend-iterator-3.C      |  43 +++
 gcc/testsuite/g++.dg/gomp/this-1.C                 |  16 +-
 gcc/testsuite/g++.dg/init/no-elide2.C              |  32 ++
 gcc/testsuite/gcc.dg/spellcheck-options-23.c       |   5 +
 gcc/testsuite/gcc.target/aarch64/cpunative/info_16 |   2 +-
 gcc/testsuite/gcc.target/aarch64/cpunative/info_17 |   2 +-
 gcc/testsuite/gnat.dg/inline22.adb                 |  19 ++
 gcc/tree-inline.c                                  |  36 ++-
 libstdc++-v3/ChangeLog                             |  25 ++
 26 files changed, 558 insertions(+), 240 deletions(-)