[gcc/devel/c++-coroutines] Merge master r12-2498.

[Iain D Sandoe]

https://gcc.gnu.org/g:d221f9d36430d3a0f9253eeda7777b358e88485f

commit d221f9d36430d3a0f9253eeda7777b358e88485f
Merge: 3911700e14a 435f90187eb
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Fri Jul 23 17:52:48 2021 +0100

    Merge master r12-2498.
    
            * Merge master r12-2498-g435f90187eb4.

Diff:

 gcc/ChangeLog                                      |   69 ++
 gcc/DATESTAMP                                      |    2 +-
 gcc/analyzer/diagnostic-manager.cc                 |   47 +-
 gcc/analyzer/region-model-manager.cc               |    4 +
 gcc/analyzer/region-model.h                        |    5 +
 gcc/c-family/c-lex.c                               |   15 +-
 gcc/c-family/c-pragma.h                            |    4 +
 gcc/config/aarch64/arm_neon.h                      | 1029 +++++++-------------
 gcc/config/i386/i386.c                             |    2 +-
 gcc/config/rs6000/rs6000.md                        |    5 +-
 gcc/cp/parser.c                                    |   40 +-
 gcc/cp/parser.h                                    |    3 +
 gcc/gimple-array-bounds.h                          |    4 +-
 gcc/testsuite/ChangeLog                            |   36 +
 gcc/testsuite/c-c++-common/gomp/attrs-1.c          |  146 +++
 gcc/testsuite/c-c++-common/gomp/attrs-2.c          |  146 +++
 gcc/testsuite/c-c++-common/gomp/attrs-3.c          |   74 ++
 gcc/testsuite/g++.dg/gomp/attrs-4.C                |   61 ++
 gcc/testsuite/g++.dg/gomp/attrs-5.C                |   46 +
 gcc/testsuite/gcc.dg/analyzer/feasibility-3.c      |  133 +++
 .../aarch64/vector_structure_intrinsics.c          |  207 ++++
 gcc/testsuite/gcc.target/i386/pr101504.c           |   23 +
 gcc/testsuite/gcc.target/mips/cfgcleanup-jalr2.c   |   11 +-
 gcc/testsuite/gcc.target/mips/cfgcleanup-jalr3.c   |    6 +-
 gcc/testsuite/gcc.target/mips/mips.exp             |    1 +
 libgfortran/ChangeLog                              |    6 +
 libgfortran/runtime/ISO_Fortran_binding.c          |   13 +-
 libstdc++-v3/ChangeLog                             |   44 +
 libstdc++-v3/include/bits/stl_relops.h             |   15 +-
 libstdc++-v3/include/std/future                    |    3 +-
 30 files changed, 1503 insertions(+), 697 deletions(-)