[gcc/devel/c++-coroutines] Merge master r11-4951.

[gcc/devel/c++-coroutines] Merge master r11-4951.

[Iain D Sandoe]

https://gcc.gnu.org/g:a4ce5f593dfb280639fb1d4a2ada5e8d4b35fd44

commit a4ce5f593dfb280639fb1d4a2ada5e8d4b35fd44
Merge: 3b8571dedcb 9106c51e57c
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Thu Nov 12 20:23:34 2020 +0000

    Merge master r11-4951.
    
            * Merge master r11-4951-g9106c51e57c0.

Diff:

 gcc/ChangeLog                                      | 175 +++++++++++++++++++++
 gcc/DATESTAMP                                      |   2 +-
 gcc/ada/ChangeLog                                  |  33 ++++
 gcc/analyzer/analyzer.opt                          |   8 +
 gcc/analyzer/checker-path.h                        |   6 +
 gcc/analyzer/diagnostic-manager.cc                 |  18 ++-
 gcc/analyzer/engine.cc                             |  55 ++++++-
 gcc/analyzer/pending-diagnostic.h                  |  15 ++
 gcc/analyzer/region-model.cc                       | 102 ++++++++++++
 gcc/attr-fnspec.h                                  |  28 +++-
 gcc/bitmap.c                                       |   5 +
 gcc/builtins.c                                     |  16 +-
 gcc/c-family/ChangeLog                             |   5 +
 gcc/c-family/c-pch.c                               |  40 ++---
 gcc/cgraphclones.c                                 |   4 +-
 gcc/config/aarch64/aarch64-sve2.md                 |  31 +++-
 gcc/config/s390/vector.md                          | 164 ++++++++++---------
 gcc/config/s390/vx-builtins.md                     |  50 +++---
 gcc/cp/ChangeLog                                   |  36 +++++
 gcc/cp/constexpr.c                                 |  34 ++--
 gcc/doc/invoke.texi                                |  33 ++++
 gcc/dwarf2out.c                                    |   1 +
 gcc/fold-const.c                                   |  45 +++++-
 gcc/fortran/ChangeLog                              |   9 ++
 gcc/fortran/trans-openmp.c                         |  50 +++---
 gcc/go/ChangeLog                                   |   5 +
 gcc/ipa-cp.c                                       | 151 ++++++++++--------
 gcc/system.h                                       |   6 +
 gcc/testsuite/ChangeLog                            | 152 ++++++++++++++++++
 gcc/testsuite/g++.dg/cpp2a/constexpr-dtor9.C       |  31 ++++
 gcc/testsuite/gcc.dg/analyzer/invalid-shift-1.c    |  34 ++++
 gcc/testsuite/gcc.dg/analyzer/setjmp-5.c           |  13 +-
 gcc/testsuite/gcc.dg/debug/dwarf2/pr97060.c        |  13 ++
 gcc/testsuite/gcc.dg/pr97806.c                     |  16 ++
 gcc/testsuite/gcc.dg/tree-ssa/pr96789.c            |   5 +-
 gcc/testsuite/gcc.dg/vect/pr97730.c                |  12 ++
 gcc/testsuite/gcc.target/aarch64/sve2/bcax_1.c     |   2 +-
 gcc/testsuite/gfortran.dg/entry_23.f               |  57 +++++++
 .../goacc/classify-kernels-unparallelized.f95      |   4 +-
 .../gfortran.dg/goacc/classify-kernels.f95         |   4 +-
 gcc/tree-ssa-alias.c                               |  35 +++--
 gcc/tree-ssa-pre.c                                 | 162 ++++++++++++-------
 gcc/tree.h                                         |   2 +-
 libcc1/ChangeLog                                   |   6 +
 libcpp/files.c                                     |   2 +-
 .../libgomp.oacc-fortran/attach-descriptor-1.f90   |   3 +-
 libiberty/ChangeLog                                |  10 ++
 libstdc++-v3/ChangeLog                             |  37 +++++
 libstdc++-v3/include/ext/numeric_traits.h          | 133 ++++++++++------
 49 files changed, 1463 insertions(+), 397 deletions(-)