[gcc/devel/sphinx] Merge branch 'master' into devel/sphinx

[Martin Liska]

https://gcc.gnu.org/g:99c8f78b7f201a4253989e897082774f7d300367

commit 99c8f78b7f201a4253989e897082774f7d300367
Merge: 441aa2ce234 05516402f8e
Author: Martin Liska <mliska@suse.cz>
Date:   Fri Jun 25 10:51:49 2021 +0200

    Merge branch 'master' into devel/sphinx

Diff:

 ChangeLog                                          |   4 +
 gcc/ChangeLog                                      | 231 ++++++++++++++++++++
 gcc/DATESTAMP                                      |   2 +-
 gcc/Makefile.in                                    |   6 +-
 gcc/builtins.c                                     |  90 ++++----
 gcc/c-family/ChangeLog                             |   7 +
 gcc/c-family/c-common.c                            |   9 +-
 gcc/c-family/c-gimplify.c                          |   2 +-
 gcc/c-family/c-warn.c                              |  10 +-
 gcc/c/ChangeLog                                    |  27 +++
 gcc/c/c-decl.c                                     |  24 +--
 gcc/c/c-fold.c                                     |   8 +-
 gcc/c/c-parser.c                                   |   7 +-
 gcc/c/c-typeck.c                                   |  44 ++--
 gcc/calls.c                                        |  90 ++++----
 gcc/cfgexpand.c                                    |   6 +-
 gcc/cgraphunit.c                                   |   2 +-
 gcc/config/i386/i386-expand.c                      |  46 +++-
 gcc/config/i386/i386.c                             |  13 +-
 gcc/config/i386/i386.md                            |   3 +
 gcc/config/i386/mmx.md                             |  72 +++++++
 gcc/config/i386/sse.md                             |   3 -
 gcc/cp/ChangeLog                                   |  30 +++
 gcc/cp/call.c                                      |  10 +-
 gcc/cp/class.c                                     |   2 +-
 gcc/cp/constraint.cc                               |   6 +-
 gcc/cp/coroutines.cc                               |  22 +-
 gcc/cp/cp-gimplify.c                               |  30 +--
 gcc/cp/cp-ubsan.c                                  |   2 +-
 gcc/cp/cvt.c                                       |  12 +-
 gcc/cp/decl.c                                      |  15 +-
 gcc/cp/decl2.c                                     |   4 +-
 gcc/cp/except.c                                    |   3 +-
 gcc/cp/init.c                                      |  16 +-
 gcc/cp/method.c                                    |   2 +-
 gcc/cp/parser.c                                    |   6 +-
 gcc/cp/pt.c                                        |  34 +--
 gcc/cp/rtti.c                                      |   4 +-
 gcc/cp/semantics.c                                 |  17 +-
 gcc/cp/tree.c                                      |   2 +-
 gcc/cp/typeck.c                                    |  27 ++-
 gcc/diagnostic-spec.c                              | 179 ++++++++++++++++
 gcc/diagnostic-spec.h                              | 141 ++++++++++++
 gcc/fold-const.c                                   |  13 +-
 gcc/gengtype.c                                     |   2 +-
 gcc/gimple-array-bounds.cc                         |  21 +-
 gcc/gimple-expr.c                                  |   2 +-
 gcc/gimple-fold.c                                  |  27 ++-
 gcc/gimple-range-cache.cc                          |  29 +--
 gcc/gimple-range-fold.cc                           |  29 ++-
 gcc/gimple-range-fold.h                            |   2 +-
 gcc/gimple-ssa-isolate-paths.c                     |   5 +
 gcc/gimple-ssa-nonnull-compare.c                   |   2 +-
 gcc/gimple-ssa-sprintf.c                           |  10 +-
 gcc/gimple-ssa-store-merging.c                     |  12 +-
 gcc/gimple-ssa-warn-restrict.c                     | 114 +++++-----
 gcc/gimple-ssa-warn-restrict.h                     |  10 +-
 gcc/gimple.c                                       |   2 +-
 gcc/gimple.h                                       |  25 ++-
 gcc/gimplify.c                                     |  17 +-
 gcc/omp-expand.c                                   |   6 +-
 gcc/omp-low.c                                      |  16 +-
 gcc/range-op.cc                                    |   2 +-
 gcc/testsuite/ChangeLog                            |  76 +++++++
 .../g++.dg/cpp2a/class-deduction-alias9.C          |   6 +
 gcc/testsuite/g++.dg/cpp2a/concepts-requires25.C   |  10 +
 gcc/testsuite/g++.dg/no-stack-protector-attr-3.C   |   3 +-
 gcc/testsuite/gcc.dg/pr101171.c                    |  13 ++
 gcc/testsuite/gcc.dg/tree-ssa/evrp30.c             |  16 ++
 gcc/testsuite/gcc.dg/tree-ssa/pr101189.c           |  17 ++
 gcc/testsuite/gcc.dg/vect/vect-nb-iter-ub-3.c      |   2 +-
 gcc/testsuite/gcc.target/i386/bitwise_mask_op-3.c  |   6 +-
 gcc/testsuite/gcc.target/i386/pr97249-1.c          |  21 +-
 gcc/tree-cfg.c                                     |  10 +-
 gcc/tree-complex.c                                 |   4 +-
 gcc/tree-inline.c                                  |   8 +-
 gcc/tree-nested.c                                  |   2 +-
 gcc/tree-sra.c                                     |   8 +-
 gcc/tree-ssa-ccp.c                                 |   2 +-
 gcc/tree-ssa-forwprop.c                            |   3 +-
 gcc/tree-ssa-loop-ch.c                             |   4 +-
 gcc/tree-ssa-loop-im.c                             |   2 +-
 gcc/tree-ssa-phiopt.c                              |   9 +-
 gcc/tree-ssa-strlen.c                              |  68 +++---
 gcc/tree-ssa-uninit.c                              |  42 ++--
 gcc/tree-vect-slp-patterns.c                       |  12 +-
 gcc/tree-vrp.c                                     |  12 +-
 gcc/tree.h                                         |  27 +++
 gcc/value-relation.cc                              |  15 +-
 gcc/vr-values.c                                    |   8 +-
 gcc/warning-control.cc                             | 238 +++++++++++++++++++++
 libgomp/ChangeLog                                  |   7 +
 libstdc++-v3/ChangeLog                             |  86 ++++++++
 lto-plugin/lto-plugin.c                            |  12 ++
 94 files changed, 1841 insertions(+), 524 deletions(-)