[gcc/devel/gccgo] Merge from trunk revision 837eb12629dd8a8a45fac9b8db57b29ecda46f14.

[Ian Lance Taylor]

https://gcc.gnu.org/g:71e955da39cea0ebffcfee3432effa622d14ca99

commit 71e955da39cea0ebffcfee3432effa622d14ca99
Merge: b43d6db9780 837eb12629d
Author: Ian Lance Taylor <iant@golang.org>
Date:   Wed Feb 16 20:22:34 2022 -0800

    Merge from trunk revision 837eb12629dd8a8a45fac9b8db57b29ecda46f14.

Diff:

 gcc/ChangeLog                                      |  20 +++
 gcc/DATESTAMP                                      |   2 +-
 gcc/analyzer/ChangeLog                             |  34 ++++++
 gcc/analyzer/diagnostic-manager.cc                 | 105 ++++++++++------
 gcc/analyzer/engine.cc                             |   5 +
 gcc/analyzer/region-model.cc                       |   6 +-
 gcc/analyzer/sm-malloc.cc                          | 134 +++++++++++----------
 gcc/analyzer/sm.h                                  |   4 +
 gcc/c-family/ChangeLog                             |  13 ++
 gcc/config/rs6000/rs6000-c.cc                      |   6 +-
 gcc/cp/ChangeLog                                   |   7 ++
 gcc/d/ChangeLog                                    |  20 +++
 gcc/testsuite/ChangeLog                            |  59 +++++++++
 gcc/testsuite/g++.dg/analyzer/placement-new.C      |   4 +-
 gcc/testsuite/g++.dg/analyzer/pr100244.C           |   2 +-
 gcc/testsuite/gcc.dg/analyzer/attr-malloc-1.c      |   2 +-
 gcc/testsuite/gcc.dg/analyzer/malloc-1.c           |  32 +++--
 gcc/testsuite/gcc.dg/analyzer/malloc-callbacks.c   |   5 +-
 gcc/testsuite/gcc.dg/analyzer/malloc-paths-8.c     |   4 +-
 gcc/testsuite/gcc.dg/analyzer/pr104560-1.c         |  43 +++++++
 gcc/testsuite/gcc.dg/analyzer/pr104560-2.c         |  26 ++++
 gcc/testsuite/gcc.dg/analyzer/realloc-1.c          |   4 +-
 .../gcc.dg/analyzer/torture/uninit-pr63311.c       | 134 +++++++++++++++++++++
 gcc/testsuite/gcc.dg/analyzer/uninit-pr104576.c    |  16 +++
 gcc/testsuite/gcc.dg/analyzer/vla-1.c              |   9 ++
 gcc/testsuite/gcc.target/powerpc/pr99708.c         |  21 ++++
 .../gfortran.dg/analyzer/uninit-pr63311.f90        |  39 ++++++
 libbacktrace/ChangeLog                             |   4 +
 libbacktrace/dwarf.c                               |  31 +++--
 libphobos/ChangeLog                                |  13 ++
 30 files changed, 672 insertions(+), 132 deletions(-)