[gcc/devel/c++-coroutines] Merge master r11-7705.

[Iain D Sandoe]

https://gcc.gnu.org/g:aa79ec6cf5484ce8ca0a688bdce493844159a154

commit aa79ec6cf5484ce8ca0a688bdce493844159a154
Merge: d11b2f60c3f f3e9c98a9f4
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Wed Mar 17 19:32:24 2021 +0000

    Merge master r11-7705.
    
            * Merge master r11-7705-gf3e9c98a9f40.

Diff:

 gcc/ChangeLog                                      | 24 +++++++++++++
 gcc/DATESTAMP                                      |  2 +-
 gcc/config/aarch64/aarch64-builtins.c              |  2 +-
 gcc/config/aarch64/aarch64.c                       |  2 +-
 gcc/config/i386/i386.c                             | 32 ++++++++++++++---
 gcc/cp/ChangeLog                                   | 30 ++++++++++++++++
 gcc/cp/decl.c                                      | 24 ++++++++-----
 gcc/cp/tree.c                                      |  2 +-
 gcc/go/gofrontend/MERGE                            |  2 +-
 gcc/go/gofrontend/expressions.cc                   |  2 +-
 gcc/go/gofrontend/statements.cc                    | 27 ++++++++++++++
 gcc/testsuite/ChangeLog                            | 41 ++++++++++++++++++++++
 gcc/testsuite/c-c++-common/asan/memcmp-1.c         |  8 +++--
 .../c-c++-common/asan/strncpy-overflow-1.c         |  5 +--
 gcc/testsuite/g++.dg/cpp2a/nontype-float1.C        | 12 +++++++
 gcc/testsuite/gcc.dg/declare-simd.c                |  2 +-
 gcc/testsuite/gcc.target/aarch64/acle/rng_2.c      | 12 +++++++
 gcc/testsuite/gcc.target/i386/pr99530-1.c          | 11 ++++++
 gcc/testsuite/gcc.target/i386/pr99530-2.c          | 11 ++++++
 gcc/testsuite/gcc.target/i386/pr99530-3.c          | 11 ++++++
 gcc/testsuite/gcc.target/i386/pr99530-4.c          | 11 ++++++
 gcc/testsuite/gcc.target/i386/pr99530-5.c          | 11 ++++++
 gcc/testsuite/gcc.target/i386/pr99530-6.c          | 11 ++++++
 libiberty/ChangeLog                                |  4 +++
 libstdc++-v3/ChangeLog                             | 30 ++++++++++++++++
 25 files changed, 305 insertions(+), 24 deletions(-)