[gcc r12-6607] Daily bump.

[gcc r12-6607] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:9248ee41478754b46b70f2409b85d9743ece9e72

commit r12-6607-g9248ee41478754b46b70f2409b85d9743ece9e72
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Sun Jan 16 00:16:26 2022 +0000

    Daily bump.

Diff:
---
 gcc/ChangeLog           | 68 +++++++++++++++++++++++++++++++++++++++++++++++++
 gcc/DATESTAMP           |  2 +-
 gcc/c-family/ChangeLog  | 10 ++++++++
 gcc/fortran/ChangeLog   |  9 +++++++
 gcc/testsuite/ChangeLog | 41 +++++++++++++++++++++++++++++
 libcpp/ChangeLog        |  5 ++++
 libgcc/ChangeLog        |  7 +++++
 libiberty/ChangeLog     |  4 +++
 libstdc++-v3/ChangeLog  | 29 +++++++++++++++++++++
 9 files changed, 174 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e7382a5bae9..7f75ecacf18 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,71 @@
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	PR c/63272
+	* diagnostic-spec.c (nowarn_spec_t::nowarn_spec_t): Handle
+	-Wdangling-pointer.
+	* doc/invoke.texi (-Wdangling-pointer): Document new option.
+	* gimple-ssa-warn-access.cc (pass_waccess::clone): Set new member.
+	(pass_waccess::check_pointer_uses): New function.
+	(pass_waccess::gimple_call_return_arg): New function.
+	(pass_waccess::gimple_call_return_arg_ref): New function.
+	(pass_waccess::check_call_dangling): New function.
+	(pass_waccess::check_dangling_uses): New function overloads.
+	(pass_waccess::check_dangling_stores): New function.
+	(pass_waccess::check_dangling_stores): New function.
+	(pass_waccess::m_clobbers): New data member.
+	(pass_waccess::m_func): New data member.
+	(pass_waccess::m_run_number): New data member.
+	(pass_waccess::m_check_dangling_p): New data member.
+	(pass_waccess::check_alloca): Check m_early_checks_p.
+	(pass_waccess::check_alloc_size_call): Same.
+	(pass_waccess::check_strcat): Same.
+	(pass_waccess::check_strncat): Same.
+	(pass_waccess::check_stxcpy): Same.
+	(pass_waccess::check_stxncpy): Same.
+	(pass_waccess::check_strncmp): Same.
+	(pass_waccess::check_memop_access): Same.
+	(pass_waccess::check_read_access): Same.
+	(pass_waccess::check_builtin): Call check_pointer_uses.
+	(pass_waccess::warn_invalid_pointer): Add arguments.
+	(is_auto_decl): New function.
+	(pass_waccess::check_stmt): New function.
+	(pass_waccess::check_block): Call check_stmt.
+	(pass_waccess::execute): Call check_dangling_uses,
+	check_dangling_stores.  Empty m_clobbers.
+	* passes.def (pass_warn_access): Invoke pass two more times.
+
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	PR tree-optimization/80532
+	* common.opt (-Wuse-after-free): New options.
+	* diagnostic-spec.c (nowarn_spec_t::nowarn_spec_t): Handle
+	OPT_Wreturn_local_addr and OPT_Wuse_after_free_.
+	* diagnostic-spec.h (NW_DANGLING): New enumerator.
+	* doc/invoke.texi (-Wuse-after-free): Document new option.
+	* gimple-ssa-warn-access.cc (pass_waccess::check_call): Rename...
+	(pass_waccess::check_call_access): ...to this.
+	(pass_waccess::check): Rename...
+	(pass_waccess::check_block): ...to this.
+	(pass_waccess::check_pointer_uses): New function.
+	(pass_waccess::gimple_call_return_arg): New function.
+	(pass_waccess::warn_invalid_pointer): New function.
+	(pass_waccess::check_builtin): Handle free and realloc.
+	(gimple_use_after_inval_p): New function.
+	(get_realloc_lhs): New function.
+	(maybe_warn_mismatched_realloc): New function.
+	(pointers_related_p): New function.
+	(pass_waccess::check_call): Call check_pointer_uses.
+	(pass_waccess::execute): Compute and free dominance info.
+
+2022-01-15  Uroš Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/i386-expand.c (ix86_expand_sse_movcc): Use
+	expand_simple_unop and expand_simple_binop instead of manually
+	constructing NOT, AND and IOR RTXes.  Use vector_all_ones_operand
+	consistently.  Eliminate common subexpressions and simplify code.
+	* config/i386/sse.md (<any_logic:code><MODEF:mode>3): New expander.
+	(<any_logic:code><MODEF:mode>3): Make public.
+
 2022-01-14  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* ipa-param-manipulation.c (ipa_dump_adjusted_parameters): Dump
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 52fea2ecbbc..20764d6add7 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20220115
+20220116
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index c25f86fe740..487be7b499b 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,13 @@
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	PR c/63272
+	* c.opt (-Wdangling-pointer): New option.
+
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	PR tree-optimization/80532
+	* c.opt (-Wuse-after-free): New options.
+
 2022-01-14  David Malcolm  <dmalcolm@redhat.com>
 
 	* c-attribs.c (c_common_attribute_table): Add "tainted_args".
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 99ab840cd43..a2585f9b0d3 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,12 @@
+2022-01-15  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/83079
+	* target-memory.c (gfc_interpret_character): Result length is
+	in bytes and thus depends on the character kind.
+	* trans-intrinsic.c (gfc_conv_intrinsic_transfer): Compute correct
+	string length for the result of the TRANSFER intrinsic and for
+	temporaries for the different character kinds.
+
 2022-01-14  Harald Anlauf  <anlauf@gmx.de>
 
 	PR fortran/99256
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3c3b3cc43dc..e04131bf909 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,44 @@
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	PR c/63272
+	* g++.dg/warn/Wfree-nonheap-object-6.C: Disable valid warnings.
+	* g++.dg/warn/ref-temp1.C: Prune expected warning.
+	* gcc.dg/uninit-pr50476.c: Expect a new warning.
+	* c-c++-common/Wdangling-pointer-2.c: New test.
+	* c-c++-common/Wdangling-pointer-3.c: New test.
+	* c-c++-common/Wdangling-pointer-4.c: New test.
+	* c-c++-common/Wdangling-pointer-5.c: New test.
+	* c-c++-common/Wdangling-pointer-6.c: New test.
+	* c-c++-common/Wdangling-pointer.c: New test.
+	* g++.dg/warn/Wdangling-pointer-2.C: New test.
+	* g++.dg/warn/Wdangling-pointer.C: New test.
+	* gcc.dg/Wdangling-pointer-2.c: New test.
+	* gcc.dg/Wdangling-pointer.c: New test.
+
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	PR tree-optimization/80532
+	* gcc.dg/Wmismatched-dealloc-2.c: Avoid -Wuse-after-free.
+	* gcc.dg/Wmismatched-dealloc-3.c: Same.
+	* gcc.dg/analyzer/file-1.c: Prune expected warning.
+	* gcc.dg/analyzer/file-2.c: Same.
+	* gcc.dg/attr-alloc_size-6.c: Disable -Wuse-after-free.
+	* gcc.dg/attr-alloc_size-7.c: Same.
+	* c-c++-common/Wuse-after-free-2.c: New test.
+	* c-c++-common/Wuse-after-free-3.c: New test.
+	* c-c++-common/Wuse-after-free-4.c: New test.
+	* c-c++-common/Wuse-after-free-5.c: New test.
+	* c-c++-common/Wuse-after-free-6.c: New test.
+	* c-c++-common/Wuse-after-free-7.c: New test.
+	* c-c++-common/Wuse-after-free.c: New test.
+	* g++.dg/warn/Wmismatched-dealloc-3.C: New test.
+	* g++.dg/warn/Wuse-after-free.C: New test.
+
+2022-01-15  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/83079
+	* gfortran.dg/transfer_char_kind4.f90: New test.
+
 2022-01-14  David Malcolm  <dmalcolm@redhat.com>
 
 	* gcc.dg/analyzer/taint-merger.c: New test.
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index a5c4e7ecf06..cc50245a489 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,8 @@
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	* files.c (_cpp_find_file): Substitute a valid pointer for
+	an invalid one to avoid -Wuse-after-free.
+
 2022-01-12  Clément Chigot  <clement.chigot@atos.net>
 
 	* configure.ac: Check sizeof ino_t and dev_t.
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 6ecc75c3c42..e6a2856056d 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,10 @@
+2022-01-15  David  <gccbugzilla@limegreensocks.com>
+
+	* config/i386/gthr-win32.c (__gthr_i486_lock_cmp_xchg):
+	Remove inlined version, Windows 95 is no longer relevant.
+	* config/i386/gthr-win32.h
+	(__GTHREAD_I486_INLINE_LOCK_PRIMITIVES): unset.
+
 2022-01-14  Claudiu Zissulescu  <claziss@synopsys.com>
 
 	* config/arc/linux-unwind.h (arc_fallback_frame_state): Use
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index b283655f3cd..3e6810009ae 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2022-01-15  Martin Sebor  <msebor@redhat.com>
+
+	* regex.c: Suppress -Wuse-after-free.
+
 2021-12-30  Lancelot SIX  <lsix@lancelotsix.com>
 
 	* cp-demangle.c (d_clone_suffix): Support digits in clone tag
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 677f3436d14..28adf812082 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,32 @@
+2022-01-15  Matthias Kretz  <m.kretz@gsi.de>
+
+	* include/experimental/bits/simd.h: Move feature detection bools
+	and add __have_avx512bitalg, __have_avx512vbmi2,
+	__have_avx512vbmi, __have_avx512ifma, __have_avx512cd,
+	__have_avx512vnni, __have_avx512vpopcntdq.
+	(__detail::__machine_flags): New function which returns a unique
+	uint64 depending on relevant -m and -f flags.
+	(__detail::__odr_helper): New type alias for either an anonymous
+	type or a type specialized with the __machine_flags number.
+	(_SimdIntOperators): Change template parameters from _Impl to
+	_Tp, _Abi because _Impl now has an __odr_helper parameter which
+	may be _OdrEnforcer from the anonymous namespace, which makes
+	for a bad base class.
+	(many): Either add __odr_helper template parameter or mark as
+	always_inline.
+	* include/experimental/bits/simd_detail.h: Add defines for
+	AVX512BITALG, AVX512VBMI2, AVX512VBMI, AVX512IFMA, AVX512CD,
+	AVX512VNNI, AVX512VPOPCNTDQ, and AVX512VP2INTERSECT.
+	* include/experimental/bits/simd_builtin.h: Add __odr_helper
+	template parameter or mark as always_inline.
+	* include/experimental/bits/simd_fixed_size.h: Ditto.
+	* include/experimental/bits/simd_math.h: Ditto.
+	* include/experimental/bits/simd_scalar.h: Ditto.
+	* include/experimental/bits/simd_neon.h: Add __odr_helper
+	template parameter.
+	* include/experimental/bits/simd_ppc.h: Ditto.
+	* include/experimental/bits/simd_x86.h: Ditto.
+
 2022-01-14  Uroš Bizjak  <ubizjak@gmail.com>
 
 	* testsuite/22_locale/numpunct/members/char/3.cc: