[gcc r12-3952] Daily bump.

[gcc r12-3952] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:fd1334791e85ef813ada97b6931fb0d912920f28

commit r12-3952-gfd1334791e85ef813ada97b6931fb0d912920f28
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Wed Sep 29 00:16:26 2021 +0000

    Daily bump.

Diff:
---
 ChangeLog               |   6 ++
 gcc/ChangeLog           | 150 +++++++++++++++++++++++++++++++++++++++++++++++
 gcc/DATESTAMP           |   2 +-
 gcc/c/ChangeLog         |  10 ++++
 gcc/cp/ChangeLog        |  14 +++++
 gcc/testsuite/ChangeLog | 118 +++++++++++++++++++++++++++++++++++++
 libgcc/ChangeLog        |   5 ++
 libgomp/ChangeLog       |  12 ++++
 libstdc++-v3/ChangeLog  | 152 ++++++++++++++++++++++++++++++++++++++++++++++++
 9 files changed, 468 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 540252bad29..9bffeeab182 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2021-09-28  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* configure: Regenerate.
+	* configure.ac (skipdirs): Add the contents of target_configdirs if
+	we are not building gcc.
+
 2021-09-24  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* Makefile.def: Back-port commits ba4d88ad892f and
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 218c10abe78..bfb6676ae6d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,153 @@
+2021-09-28  Geng Qi  <gengqi@linux.alibaba.com>
+
+	* config/riscv/riscv.md	(mulv<mode>4): Call gen_smul<mode>3_highpart.
+	(<u>mulditi3): Call <su>muldi3_highpart.
+	(<u>muldi3_highpart): Rename to <su>muldi3_highpart.
+	(<u>mulsidi3): Call <su>mulsi3_highpart.
+	(<u>mulsi3_highpart): Rename to <su>mulsi3_highpart.
+
+2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* config/darwin.h (DSYMUTIL_SPEC): Recognize D sources.
+
+2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* config/rs6000/darwin.h (FIXED_R13): Add for PPC64.
+	(FIRST_SAVED_GP_REGNO): Save from R13 even when it is one
+	of the fixed regs.
+
+2021-09-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64.h (AARCH64_FL_LS64): Define
+	(AARCH64_FL_V8_7): Likewise.
+	(AARCH64_FL_FOR_ARCH8_7): Likewise.
+	* config/aarch64/aarch64-arches.def (armv8.7-a): Define.
+	* config/aarch64/aarch64-option-extensions.def (ls64): Define.
+	* doc/invoke.texi: Document the above.
+
+2021-09-28  Aldy Hernandez  <aldyh@redhat.com>
+
+	* dbgcnt.c (dbg_cnt_counter): New.
+	* dbgcnt.h (dbg_cnt_counter): New.
+	* dumpfile.c (dump_options): Add entry for TDF_THREADING.
+	* dumpfile.h (enum dump_flag): Add TDF_THREADING.
+	* gimple-range-path.cc (DEBUG_SOLVER): Use TDF_THREADING.
+	* tree-ssa-threadupdate.c (dump_jump_thread_path): Dump out
+	debug counter.
+
+2021-09-28  Aldy Hernandez  <aldyh@redhat.com>
+
+	* cfgcleanup.c (pass_jump::execute): Check
+	flag_expensive_optimizations.
+	(pass_jump_after_combine::gate): Same.
+	* doc/invoke.texi (-fthread-jumps): Enable for -O1.
+	* opts.c (default_options_table): Enable -fthread-jumps at -O1.
+	* tree-ssa-threadupdate.c
+	(fwd_jt_path_registry::remove_jump_threads_including): Bail unless
+	flag_thread_jumps.
+
+2021-09-28  Ilya Leoshkevich  <iii@linux.ibm.com>
+
+	* tree-ssa-reassoc.c (biased_names): New global.
+	(propagate_bias_p): New function.
+	(loop_carried_phi): Remove.
+	(propagate_rank): Propagate bias along single uses.
+	(get_rank): Update biased_names when needed.
+
+2021-09-28  Ilya Leoshkevich  <iii@linux.ibm.com>
+
+	* passes.def (pass_reassoc): Rename parameter to early_p.
+	* tree-ssa-reassoc.c (reassoc_bias_loop_carried_phi_ranks_p):
+	New variable.
+	(phi_rank): Don't bias loop-carried phi ranks
+	before vectorization pass.
+	(execute_reassoc): Add bias_loop_carried_phi_ranks_p parameter.
+	(pass_reassoc::pass_reassoc): Add bias_loop_carried_phi_ranks_p
+	initializer.
+	(pass_reassoc::set_param): Set bias_loop_carried_phi_ranks_p
+	value.
+	(pass_reassoc::execute): Pass bias_loop_carried_phi_ranks_p to
+	execute_reassoc.
+	(pass_reassoc::bias_loop_carried_phi_ranks_p): New member.
+
+2021-09-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/102498
+	* config/i386/i386.c (standard_80387_constant_p): Don't recognize
+	special 80387 instruction XFmode constants if flag_rounding_math.
+
+2021-09-28  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/100112
+	* tree-ssa-sccvn.c (visit_reference_op_load): Record the
+	referece into the hashtable twice in case last_vuse is
+	different from the original vuse on the stmt.
+
+2021-09-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/102492
+	* gimplify.c (gimplify_adjust_omp_clauses_1): Don't call the
+	omp_finish_clause langhook on implicitly added OMP_CLAUSE_PRIVATE
+	clauses on SIMD constructs.
+
+2021-09-28  Aldy Hernandez  <aldyh@redhat.com>
+
+	PR tree-optimization/102511
+	* gimple-range-path.cc (path_range_query::range_on_path_entry):
+	Return VARYING when nothing found.
+
+2021-09-28  Hongyu Wang  <hongyu.wang@intel.com>
+
+	PR target/102230
+	* config/i386/i386.h (VALID_AVX512FP16_REG_MODE): Add
+	V2HF mode check.
+	(VALID_SSE2_REG_VHF_MODE): Add V4HFmode and V2HFmode.
+	(VALID_MMX_REG_MODE): Add V4HFmode.
+	(SSE_REG_MODE_P): Replace VALID_AVX512FP16_REG_MODE with
+	vector mode condition.
+	* config/i386/i386.c (classify_argument): Parse V4HF/V2HF
+	via sse regs.
+	(function_arg_32): Add V4HFmode.
+	(function_arg_advance_32): Likewise.
+	* config/i386/i386.md (mode): Add V4HF/V2HF.
+	(MODE_SIZE): Likewise.
+	* config/i386/mmx.md (MMXMODE): Add V4HF mode.
+	(V_32): Add V2HF mode.
+	(VHF_32_64): New mode iterator.
+	(*mov<mode>_internal): Adjust sse alternatives to support
+	V4HF mode move.
+	(*mov<mode>_internal): Adjust sse alternatives to support
+	V2HF mode move.
+	(<insn><mode>3): New define_insn for add/sub/mul/div.
+
+2021-09-28  Aldy Hernandez  <aldyh@redhat.com>
+
+	* tree-ssa-threadbackward.c (pass_thread_jumps::gate): Check
+	flag_thread_jumps.
+	(pass_early_thread_jumps::gate): Same.
+	* tree-ssa-threadedge.c (jump_threader::thread_outgoing_edges):
+	Return if !flag_thread_jumps.
+	* tree-ssa-threadupdate.c
+	(jt_path_registry::register_jump_thread): Assert that
+	flag_thread_jumps is true.
+
+2021-09-28  liuhongt  <hongtao.liu@intel.com>
+
+	* simplify-rtx.c
+	(simplify_context::simplify_binary_operation_1): Relax
+	condition of simplifying (vec_concat:M (vec_select op0
+	index0)(vec_select op1 index1)) to allow different modes
+	between op0 and M, but have same inner mode.
+
+2021-09-28  liuhongt  <hongtao.liu@intel.com>
+
+	* config/i386/i386-expand.c (emit_reduc_half): Handle
+	V8HF/V16HF/V32HFmode.
+	* config/i386/sse.md (REDUC_SSE_PLUS_MODE): Add V8HF.
+	(REDUC_SSE_SMINMAX_MODE): Ditto.
+	(REDUC_PLUS_MODE): Add V16HF and V32HF.
+	(REDUC_SMINMAX_MODE): Ditto.
+
 2021-09-27  Aldy Hernandez  <aldyh@redhat.com>
 
 	* gimple-range-path.cc
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index fbdb92926d0..d0eb6b61c0f 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210928
+20210929
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index f9f899bd084..80ef7353236 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,13 @@
+2021-09-28  Andrew Pinski  <apinski@marvell.com>
+
+	PR c/32122
+	* c-parser.c (c_parser_statement_after_labels): Pass
+	the c_expr instead of the tree to c_finish_goto_ptr.
+	* c-typeck.c (c_finish_goto_ptr): Change the second
+	argument type to c_expr.
+	* c-tree.h (c_finish_goto_ptr): Likewise.
+	Error out if the expression was not of a pointer type.
+
 2021-09-22  Jakub Jelinek  <jakub@redhat.com>
 
 	* c-parser.c (c_parser_omp_clause_allocate): Parse allocate clause
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index f60587a905d..7378dfa609b 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,17 @@
+2021-09-28  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/99909
+	* pt.c (coerce_template_template_parms): Keep
+	processing_template_decl set around the call to unify as well.
+
+2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/102454
+	* coroutines.cc (analyze_fn_parms): Clean up synthetic names for
+	unnamed function params.
+	(morph_fn_to_coro): Do not try to set a guard variable for param
+	DTORs in the ramp, unless we have exceptions active.
+
 2021-09-27  Patrick Palka  <ppalka@redhat.com>
 
 	PR c++/102479
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 929ff612109..ee8fff8a66f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,121 @@
+2021-09-28  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/99909
+	* g++.dg/cpp2a/concepts-ttp3.C: New test.
+
+2021-09-28  Andrew Pinski  <apinski@marvell.com>
+
+	PR c/32122
+	* gcc.dg/comp-goto-5.c: New test.
+	* gcc.dg/comp-goto-6.c: New test.
+
+2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/102454
+	* g++.dg/coroutines/pr102454.C: New test.
+
+2021-09-28  Ilya Leoshkevich  <iii@linux.ibm.com>
+
+	* gcc.dg/tree-ssa/reassoc-46.c: New test.
+	* gcc.dg/tree-ssa/reassoc-46.h: Common code for new tests.
+	* gcc.dg/tree-ssa/reassoc-47.c: New test.
+	* gcc.dg/tree-ssa/reassoc-48.c: New test.
+	* gcc.dg/tree-ssa/reassoc-49.c: New test.
+	* gcc.dg/tree-ssa/reassoc-50.c: New test.
+	* gcc.dg/tree-ssa/reassoc-51.c: New test.
+
+2021-09-28  Aldy Hernandez  <aldyh@redhat.com>
+
+	* gcc.dg/auto-init-uninit-1.c: Adjust.
+	* gcc.dg/auto-init-uninit-15.c: Same.
+	* gcc.dg/guality/example.c: Same.
+	* gcc.dg/loop-8.c: Same.
+	* gcc.dg/strlenopt-40.c: Same.
+	* gcc.dg/tree-ssa/pr18133-2.c: Same.
+	* gcc.dg/tree-ssa/pr18134.c: Same.
+	* gcc.dg/uninit-1.c: Same.
+	* gcc.dg/uninit-pr44547.c: Same.
+	* gcc.dg/uninit-pr59970.c: Same.
+
+2021-09-28  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* gfortran.dg/assumed_rank_22_aux.c: Adjust messages printed.
+
+2021-09-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/102498
+	* gcc.target/i386/pr102498.c: New test.
+
+2021-09-28  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/99793
+	* gcc.dg/tree-ssa/pr99793.c: New testcase.
+
+2021-09-28  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/100112
+	* gcc.dg/tree-ssa/ssa-fre-95.c: New testcase.
+
+2021-09-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/102492
+	* g++.dg/gomp/simd-3.C: New test.
+
+2021-09-28  Aldy Hernandez  <aldyh@redhat.com>
+
+	PR tree-optimization/102511
+	* gcc.dg/pr102511.c: New test.
+	* gcc.dg/tree-ssa/ssa-dom-thread-14.c: Adjust.
+
+2021-09-28  Hongyu Wang  <hongyu.wang@intel.com>
+
+	PR target/102230
+	* gcc.target/i386/avx512fp16-floatvnhf.c: Remove xfail.
+	* gcc.target/i386/avx512fp16-trunc-extendvnhf.c: Ditto.
+	* gcc.target/i386/avx512fp16-truncvnhf.c: Ditto.
+	* gcc.target/i386/avx512fp16-64-32-vecop-1.c: New test.
+	* gcc.target/i386/avx512fp16-64-32-vecop-2.c: Ditto.
+	* gcc.target/i386/pr102230.c: Ditto.
+
+2021-09-28  Richard Biener  <rguenther@suse.de>
+
+	* gcc.target/i386/vect-pr97352.c: Pass -mno-avx2 -mno-avx512f.
+
+2021-09-28  Tobias Burnus  <tobias@codesourcery.com>
+
+	PR fortran/102500
+	* gfortran.dg/include_15.f90: Add 'dg-prune-output' to prune
+	-Wmissing-include-dirs output printed or not depending on
+	how the testsuite is run.
+
+2021-09-28  Richard Biener  <rguenther@suse.de>
+
+	* gcc.dg/vect/bb-slp-pr65935.c: Prefer 128bit vectorization
+	on x86.
+
+2021-09-28  Aldy Hernandez  <aldyh@redhat.com>
+
+	* gcc.dg/auto-init-uninit-1.c: Add -fthread-jumps.
+	* gcc.dg/auto-init-uninit-15.c: Same.
+	* gcc.dg/guality/example.c: Same.
+	* gcc.dg/loop-8.c: Same.
+	* gcc.dg/strlenopt-40.c: Same.
+	* gcc.dg/tree-ssa/pr18133-2.c: Same.
+	* gcc.dg/tree-ssa/pr18134.c: Same.
+	* gcc.dg/uninit-1.c: Same.
+	* gcc.dg/uninit-pr44547.c: Same.
+	* gcc.dg/uninit-pr59970.c: Same.
+
+2021-09-28  liuhongt  <hongtao.liu@intel.com>
+
+	* gcc.target/i386/vect-rebuild.c: Adjust testcases.
+	* gcc.target/i386/avx512f-vect-rebuild.c: New test.
+
+2021-09-28  liuhongt  <hongtao.liu@intel.com>
+
+	* gcc.target/i386/avx512fp16-reduce-op-2.c: New test.
+	* gcc.target/i386/avx512fp16-reduce-op-3.c: New test.
+
 2021-09-27  Patrick Palka  <ppalka@redhat.com>
 
 	PR c++/102479
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 2bef573ebe4..188445eab97 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,8 @@
+2021-09-28  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* config/i386/libgcc-darwin.ver: Add Symbols for
+	__cpu_model, __cpu_indicator_init.
+
 2021-09-22  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* config/i386/sfp-machine.h: Guard Mach-O-specific code
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 32514745a44..aceb6affc7a 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,15 @@
+2021-09-28  Tobias Burnus  <tobias@codesourcery.com>
+
+	PR libgomp/96661
+	* configure.ac: Only check for int-type = 2*size_t support when
+	building with Fortran support.
+	* configure: Regenerate.
+
+2021-09-28  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* testsuite/libgomp.oacc-fortran/if-1.f90: Adjust.
+	* testsuite/libgomp.oacc-fortran/privatized-ref-2.f90: Likewise.
+
 2021-09-27  Aldy Hernandez  <aldyh@redhat.com>
 
 	* team.c: Initialize start_data.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index db15232218b..fd4fcad50d4 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,155 @@
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/atomic_timed_wait.h (__platform_wait_until_impl):
+	Return false for ETIMEDOUT and true otherwise.
+
+2021-09-28  François Dumont  <fdumont@gcc.gnu.org>
+
+	* testsuite/20_util/default_delete/48631_neg.cc: Adapt dg-prune-output message
+	to also match message with '__8' in it.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/regex_automaton.h (_NFA_base::_SizeT): Remove.
+	* include/bits/regex_compiler.h (_Compiler::_IterT): Remove.
+	* include/bits/regex_compiler.tcc: Likewise.
+	* include/bits/regex_scanner.h (_Scanner::_IterT): Remove.
+	* include/bits/regex_scanner.tcc: Likewise.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/regex_compiler.tcc: Add line break in empty while
+	statement.
+	* include/bits/regex_executor.tcc: Avoid unused parameter
+	warning.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/regex.h (basic_regex, swap): Add noexcept to
+	non-throwing functions.
+	* include/bits/regex_automaton.h (_State_base, _State)
+	(_NFA_base): Likewise.
+	* include/bits/regex_compiler.h (_Compiler): Likewise.
+	* include/bits/regex_error.h (regex_error::code()): Likewise.
+	* include/bits/regex_scanner.h (_Scanner): Likewise.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/atomic_wait.h (_GLIBCXX_HAVE_PLATFORM_WAIT):
+	Define before first attempt to check it.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/23_containers/priority_queue/requirements/explicit_instantiation/1.cc:
+	Do not check non-default constructible sequences when
+	_GLIBCXX_CONCEPT_CHECKS is defined.
+	* testsuite/23_containers/priority_queue/requirements/explicit_instantiation/1_c++98.cc:
+	Likewise.
+	* testsuite/23_containers/queue/requirements/explicit_instantiation/1.cc:
+	Likewise.
+	* testsuite/23_containers/queue/requirements/explicit_instantiation/1_c++98.cc:
+	Likewise.
+	* testsuite/23_containers/stack/requirements/explicit_instantiation/1.cc:
+	Likewise.
+	* testsuite/23_containers/stack/requirements/explicit_instantiation/1_c++98.cc:
+	Likewise.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/23_containers/deque/requirements/explicit_instantiation/3.cc:
+	Do not test implicit allocator rebinding when _GLIBCXX_CONCEPT_CHECKS
+	is defined.
+	* testsuite/23_containers/forward_list/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/list/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/list/requirements/explicit_instantiation/5.cc:
+	Likewise.
+	* testsuite/23_containers/map/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/map/requirements/explicit_instantiation/5.cc:
+	Likewise.
+	* testsuite/23_containers/multimap/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/multimap/requirements/explicit_instantiation/5.cc:
+	Likewise.
+	* testsuite/23_containers/multiset/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/multiset/requirements/explicit_instantiation/5.cc:
+	Likewise.
+	* testsuite/23_containers/set/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/set/requirements/explicit_instantiation/5.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_map/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_multimap/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_set/requirements/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/vector/ext_pointer/explicit_instantiation/3.cc:
+	Likewise.
+	* testsuite/23_containers/vector/requirements/explicit_instantiation/3.cc:
+	Likewise.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/boost_concept_check.h (_ForwardIteratorConcept)
+	(_BidirectionalIteratorConcept, _RandomAccessIteratorConcept):
+	Check result types of iterator operations.
+	(_Mutable_ForwardIteratorConcept): Check that iterator's
+	reference type is a reference to its value type.
+	(_Mutable_BidirectionalIteratorConcept): Do not require the
+	value type to be assignable.
+	(_Mutable_RandomAccessIteratorConcept): Likewise.
+	* testsuite/24_iterators/operations/prev_neg.cc: Adjust dg-error
+	line number.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/25_algorithms/copy/34595.cc: Add missing operation
+	for type used as an iterator.
+	* testsuite/25_algorithms/unique_copy/check_type.cc: Likewise.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/20_util/is_nothrow_swappable/value.h: Use custom
+	comparison function for priority_queue of type with no
+	relational operators.
+	* testsuite/20_util/is_swappable/value.h: Likewise.
+	* testsuite/24_iterators/output/concept.cc: Add operator< to
+	type used in set.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/boost_concept_check.h (_OutputIteratorConcept):
+	Use a function to preserve value category of the type.
+	* include/bits/stl_algobase.h (copy, move, fill_n): Use a
+	reference as the second argument for _OutputIteratorConcept.
+	(copy_backward, move_backward): Use _OutputIteratorConcept
+	instead of _ConvertibleConcept.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/stl_iterator.h (pointer_traits): Define partial
+	specialization for __normal_iterator.
+	* testsuite/24_iterators/normal_iterator/to_address.cc: New test.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/move.h (forward(remove_reference_t<T>&&)):
+	Improve text of static_assert.
+	* testsuite/20_util/forward/c_neg.cc: Adjust dg-error.
+	* testsuite/20_util/forward/f_neg.cc: Likewise.
+
+2021-09-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/102499
+	* include/bits/fs_path.h (path::begin, path::end): Add noexcept
+	to declarations, to match definitions.
+
 2021-09-24  Jonathan Wakely  <jwakely@redhat.com>
 
 	* include/bits/range_access.h (cbegin, cend): Remove redundant