[gcc/devel/c++-coroutines] Merge master r10-7093.

[Iain D Sandoe]

https://gcc.gnu.org/g:55c0393b6485e69335d77b0f919b3d52a658a890

commit 55c0393b6485e69335d77b0f919b3d52a658a890
Merge: 77875d70cdc 5dc1390b41d
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Mon Mar 9 20:44:57 2020 +0000

    Merge master r10-7093.
    
    2020-03-09  Iain Sandoe  <iain@sandoe.co.uk>
    
            * Merge master r10-7093-g5dc1390b41db.

Diff:

 ChangeLog                                          |  5 ++
 configure                                          |  2 +-
 configure.ac                                       |  2 +-
 gcc/ChangeLog                                      | 30 ++++++++++
 gcc/DATESTAMP                                      |  2 +-
 gcc/alias.c                                        |  3 +
 gcc/config/rs6000/rs6000.c                         |  5 --
 gcc/config/rs6000/rs6000.opt                       |  3 +-
 gcc/cp/ChangeLog                                   | 12 ++++
 gcc/cp/class.c                                     |  4 ++
 gcc/cp/coroutines.cc                               | 68 ++++++++++++----------
 gcc/doc/extend.texi                                |  2 +-
 gcc/ira-color.c                                    |  4 +-
 gcc/params.opt                                     |  4 ++
 gcc/testsuite/ChangeLog                            | 30 ++++++++++
 gcc/testsuite/g++.dg/abi/align3.C                  | 12 ++++
 .../torture/co-ret-15-default-return_void.C        | 55 +++++++++++++++++
 gcc/testsuite/gcc.dg/vect/slp-perm-12.c            |  2 +-
 gcc/testsuite/gcc.dg/vect/vect-over-widen-17.c     |  5 +-
 gcc/testsuite/gcc.target/arm/fuse-caller-save.c    |  2 +-
 gcc/testsuite/gcc.target/powerpc/pr93800.c         | 14 +++++
 21 files changed, 219 insertions(+), 47 deletions(-)