[gcc r12-137] Daily bump.

[gcc r12-137] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:c0fa3f2fb365144b3a059920aeaf6ff37db1177d

commit r12-137-gc0fa3f2fb365144b3a059920aeaf6ff37db1177d
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Tue Apr 27 00:16:30 2021 +0000

    Daily bump.

Diff:
---
 gcc/ChangeLog           | 171 ++++++++++++++++++++++++++++++++++++++++++++++++
 gcc/DATESTAMP           |   2 +-
 gcc/c-family/ChangeLog  |   8 +++
 gcc/cp/ChangeLog        |   8 +++
 gcc/fortran/ChangeLog   |   8 +++
 gcc/testsuite/ChangeLog |  83 +++++++++++++++++++++++
 libgomp/ChangeLog       |  73 +++++++++++++++++++++
 libstdc++-v3/ChangeLog  |  56 ++++++++++++++++
 8 files changed, 408 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a8510be2e7e..2c93637b920 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,174 @@
+2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
+
+	* value-range.cc (irange::irange_set_1bit_anti_range): Add assert.
+	(irange::set): Call irange_set_1bit_anti_range for handling all
+	1-bit ranges.  Fall through on ~[MIN,MAX].
+
+2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
+
+	* value-range.cc (irange::legacy_num_pairs): Remove.
+	(irange::invert): Change gcc_assert to gcc_checking_assert.
+	* value-range.h (irange::num_pairs): Adjust for a cached
+	num_pairs().  Also, rename all gcc_assert's to
+	gcc_checking_assert's.
+
+2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
+
+	* value-range.cc (irange::operator=): Set m_kind.
+	(irange::copy_to_legacy): Handle varying and undefined sources
+	as a legacy copy since they can be easily copied.
+	(irange::irange_set): Set m_kind.
+	(irange::irange_set_anti_range): Same.
+	(irange::set): Rename normalize_min_max to normalize_kind.
+	(irange::verify_range): Adjust for multi-ranges having the
+	m_kind field set.
+	(irange::irange_union): Set m_kind.
+	(irange::irange_intersect): Same.
+	(irange::invert): Same.
+	* value-range.h (irange::kind): Always return m_kind.
+	(irange::varying_p): Rename to...
+	(irange::varying_comptaible_p): ...this.
+	(irange::undefined_p): Only look at m_kind.
+	(irange::irange): Always set VR_UNDEFINED if applicable.
+	(irange::set_undefined): Always set VR_UNDEFINED.
+	(irange::set_varying): Always set m_kind to VR_VARYING.
+	(irange::normalize_min_max): Rename to...
+	(irange::normalize_kind): ...this.
+
+2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
+
+	* gimple-ssa-evrp-analyze.c (evrp_range_analyzer::set_ssa_range_info):
+	Adjust for constant_p including varying_p.
+	* tree-vrp.c (vrp_prop::finalize): Same.
+	(determine_value_range): Same.
+	* vr-values.c (vr_values::range_of_expr): Same.
+	* value-range.cc (irange::symbolic_p): Do not check varying_p.
+	(irange::constant_p): Same.
+
+2021-04-26  Aldy Hernandez  <aldyh@redhat.com>
+
+	* value-range.cc (irange::legacy_lower_bound): Replace
+	  !undefined_p check with num_ranges > 0.
+	(irange::legacy_upper_bound): Same.
+	* value-range.h (irange::type): Same.
+	(irange::lower_bound): Same.
+	(irange::upper_bound): Same.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/99956
+	* gimple-loop-interchange.cc (compute_access_stride):
+	Try instantiating the access in a shallower loop nest
+	if instantiating failed.
+	(compute_access_strides): Pass adjustable loop_nest
+	to compute_access_stride.
+
+2021-04-26  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	* doc/sourcebuild.texi (arm_cmse_hw): Document.
+
+2021-04-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/iterators.md (vwcore): Handle V4BF, V8BF.
+
+2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
+	    Nathan Sidwell  <nathan@codesourcery.com>
+	    Tom de Vries  <vries@codesourcery.com>
+	    Julian Brown  <julian@codesourcery.com>
+	    Kwok Cheung Yeung  <kcy@codesourcery.com>
+
+	* omp-offload.c (oacc_validate_dims): Implement
+	'-Wopenacc-parallelism'.
+	* doc/invoke.texi (-Wopenacc-parallelism): Document.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	* tree-cfg.h (gimplify_build1): Remove.
+	(gimplify_build2): Likewise.
+	(gimplify_build3): Likewise.
+	* tree-cfg.c (gimplify_build1): Move to tree-vect-generic.c.
+	(gimplify_build2): Likewise.
+	(gimplify_build3): Likewise.
+	* tree-vect-generic.c (gimplify_build1): Move from tree-cfg.c.
+	Modernize.
+	(gimplify_build2): Likewise.
+	(gimplify_build3): Likewise.
+	(tree_vec_extract): Use resimplify with following SSA edges.
+	(expand_vector_parallel): Avoid passing NULL size/bitpos
+	to tree_vec_extract.
+	* expr.c (store_constructor): Deal with zero-element CTORs.
+	* match.pd (bit_field_ref <vector CTOR>): Make sure to
+	produce vector constants when possible.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	* tree-complex.c: Include gimple-fold.h.
+	(expand_complex_addition): Use gimple_build.
+	(expand_complex_multiplication_components): Likewise.
+	(expand_complex_multiplication): Likewise.
+	(expand_complex_div_straight): Likewise.
+	(expand_complex_div_wide): Likewise.
+	(expand_complex_division): Likewise.
+	(expand_complex_conjugate): Likewise.
+	(expand_complex_comparison): Likewise.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	* tree-ssa-phiopt.c (two_value_replacement): Remove use
+	of legacy gimplify_buildN API.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/99473
+	* tree-ssa-phiopt.c (cond_store_replacement): Handle all
+	stores.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	* config/rs6000/rs6000-call.c (rs6000_gimple_fold_builtin):
+	Use replace_call_with_value.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	* tree-ssa-propagate.h (valid_gimple_rhs_p): Remove.
+	(update_gimple_call): Likewise.
+	(update_call_from_tree): Likewise.
+	* tree-ssa-propagate.c (valid_gimple_rhs_p): Remove.
+	(valid_gimple_call_p): Likewise.
+	(move_ssa_defining_stmt_for_defs): Likewise.
+	(finish_update_gimple_call): Likewise.
+	(update_gimple_call): Likewise.
+	(update_call_from_tree): Likewise.
+	(propagate_tree_value_into_stmt): Use replace_call_with_value.
+	* gimple-fold.h (update_gimple_call): Declare.
+	* gimple-fold.c (valid_gimple_rhs_p): Move here from
+	tree-ssa-propagate.c.
+	(update_gimple_call): Likewise.
+	(valid_gimple_call_p): Likewise.
+	(finish_update_gimple_call): Likewise, and simplify.
+	(gimplify_and_update_call_from_tree): Implement
+	update_call_from_tree functionality, avoid excessive
+	push/pop_gimplify_context.
+	(gimple_fold_builtin): Use only gimplify_and_update_call_from_tree.
+	(gimple_fold_call): Likewise.
+	* gimple-ssa-sprintf.c (try_substitute_return_value): Likewise.
+	* tree-ssa-ccp.c (ccp_folder::fold_stmt): Likewise.
+	(pass_fold_builtins::execute): Likewise.
+	(optimize_stack_restore): Use replace_call_with_value.
+	* tree-cfg.c (fold_loop_internal_call): Likewise.
+	* tree-ssa-dce.c (maybe_optimize_arith_overflow): Use
+	only gimplify_and_update_call_from_tree.
+	* tree-ssa-strlen.c (handle_builtin_strlen): Likewise.
+	(handle_builtin_strchr): Likewise.
+	* tsan.c: Include gimple-fold.h instead of tree-ssa-propagate.h.
+
+2021-04-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/100255
+	* vmsdbgout.c (ASM_OUTPUT_DEBUG_STRING, vmsdbgout_begin_block,
+	vmsdbgout_end_block, lookup_filename, vmsdbgout_source_line): Remove
+	register keywords.
+
 2021-04-25  liuhongt  <hongtao.liu@intel.com>
 
 	PR target/98911
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 7f03bd17784..f347a06c334 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210426
+20210427
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index fb2c4b0463d..38855e1d0eb 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,11 @@
+2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
+	    Nathan Sidwell  <nathan@codesourcery.com>
+	    Tom de Vries  <vries@codesourcery.com>
+	    Julian Brown  <julian@codesourcery.com>
+	    Kwok Cheung Yeung  <kcy@codesourcery.com>
+
+	* c.opt (Wopenacc-parallelism): New.
+
 2021-04-19  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* c.opt (fopenacc-kernels=): Remove.
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index b213029ac81..ec6e1d66362 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,11 @@
+2021-04-26  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/100209
+	* constexpr.c (cxx_fold_indirect_ref): Try to canonicalize the
+	object/offset pair for a POINTER_PLUS_EXPR of a COMPONENT_REF
+	with a negative offset into one whose offset is nonnegative
+	before calling cxx_fold_indirect_ref_1.
+
 2021-04-24  Patrick Palka  <ppalka@redhat.com>
 
 	PR c++/89565
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index ad6616187f8..c36892659aa 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,11 @@
+2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
+	    Nathan Sidwell  <nathan@codesourcery.com>
+	    Tom de Vries  <vries@codesourcery.com>
+	    Julian Brown  <julian@codesourcery.com>
+	    Kwok Cheung Yeung  <kcy@codesourcery.com>
+
+	* lang.opt (Wopenacc-parallelism): New.
+
 2021-04-24  Harald Anlauf  <anlauf@gmx.de>
 
 	PR fortran/100154
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c79adfd9ef8..26c41acf622 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,86 @@
+2021-04-26  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/100209
+	* g++.dg/cpp1y/constexpr-base1.C: New test.
+	* g++.dg/cpp1y/constexpr-ptrsub1.C: New test.
+
+2021-04-26  Tobias Burnus  <tobias@codesourcery.com>
+
+	* gfortran.dg/goacc/classify-serial.f95:
+	Use [Ww]arning in dg-bogus as FE diagnostic and default
+	diagnostic differ and the result depends on ENABLE_OFFLOAD.
+	* gfortran.dg/goacc/kernels-decompose-2.f95: Likewise.
+	* gfortran.dg/goacc/routine-module-mod-1.f90: Likewise.
+
+2021-04-26  Tobias Burnus  <tobias@codesourcery.com>
+
+	* gfortran.dg/goacc/classify-serial.f95:
+	Correct spelling in dg-bogus to match -Wopenacc-parallelism.
+	* gfortran.dg/goacc/kernels-decompose-2.f95: Likewise.
+	* gfortran.dg/goacc/routine-module-mod-1.f90: Likewise.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/99956
+	* gfortran.dg/pr99956.f: New testcase.
+
+2021-04-26  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	* gcc.target/arm/cmse/bitfield-1.c: Remove dg-do.
+	* gcc.target/arm/cmse/bitfield-2.c: Likewise.
+	* gcc.target/arm/cmse/bitfield-3.c: Likewise.
+	* gcc.target/arm/cmse/cmse-16.c: Likewise.
+	* gcc.target/arm/cmse/struct-1.c: Likewise.
+	* gcc.target/arm/cmse/cmse.exp: Set dg-do-what-default depending
+	on arm_cmse_hw.
+	* lib/target-supports.exp (check_effective_target_arm_cmse_hw):
+	New.
+
+2021-04-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc.dg/pr84877.c: XFAIL on SPARC as well.
+
+2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
+	    Nathan Sidwell  <nathan@codesourcery.com>
+	    Tom de Vries  <vries@codesourcery.com>
+	    Julian Brown  <julian@codesourcery.com>
+	    Kwok Cheung Yeung  <kcy@codesourcery.com>
+
+	* c-c++-common/goacc/diag-parallelism-1.c: New.
+	* c-c++-common/goacc/acc-icf.c: Specify '-Wopenacc-parallelism',
+	and match diagnostics, as appropriate.
+	* c-c++-common/goacc/classify-kernels-unparallelized.c: Likewise.
+	* c-c++-common/goacc/classify-kernels.c: Likewise.
+	* c-c++-common/goacc/classify-parallel.c: Likewise.
+	* c-c++-common/goacc/classify-routine.c: Likewise.
+	* c-c++-common/goacc/classify-serial.c: Likewise.
+	* c-c++-common/goacc/kernels-decompose-1.c: Likewise.
+	* c-c++-common/goacc/kernels-decompose-2.c: Likewise.
+	* c-c++-common/goacc/parallel-dims-1.c: Likewise.
+	* c-c++-common/goacc/parallel-reduction.c: Likewise.
+	* c-c++-common/goacc/pr70688.c: Likewise.
+	* c-c++-common/goacc/routine-1.c: Likewise.
+	* c-c++-common/goacc/routine-level-of-parallelism-2.c: Likewise.
+	* c-c++-common/goacc/uninit-dim-clause.c: Likewise.
+	* gfortran.dg/goacc/classify-kernels-unparallelized.f95: Likewise.
+	* gfortran.dg/goacc/classify-kernels.f95: Likewise.
+	* gfortran.dg/goacc/classify-parallel.f95: Likewise.
+	* gfortran.dg/goacc/classify-routine.f95: Likewise.
+	* gfortran.dg/goacc/classify-serial.f95: Likewise.
+	* gfortran.dg/goacc/kernels-decompose-1.f95: Likewise.
+	* gfortran.dg/goacc/kernels-decompose-2.f95: Likewise.
+	* gfortran.dg/goacc/parallel-tree.f95: Likewise.
+	* gfortran.dg/goacc/routine-4.f90: Likewise.
+	* gfortran.dg/goacc/routine-level-of-parallelism-1.f90: Likewise.
+	* gfortran.dg/goacc/routine-module-mod-1.f90: Likewise.
+	* gfortran.dg/goacc/routine-multiple-directives-1.f90: Likewise.
+	* gfortran.dg/goacc/uninit-dim-clause.f95: Likewise.
+
+2021-04-26  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/99473
+	* gcc.dg/tree-ssa/pr99473-1.c: New testcase.
+
 2021-04-25  liuhongt  <hongtao.liu@intel.com>
 
 	PR target/98911
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 0a903604b0d..b8a5ad1424d 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,76 @@
+2021-04-26  Tobias Burnus  <tobias@codesourcery.com>
+
+	* testsuite/libgomp.oacc-fortran/par-reduction-2-1.f:
+	Use [Ww]arning in dg-bogus as FE diagnostic and default
+	diagnostic differ and the result depends on ENABLE_OFFLOAD.
+	* testsuite/libgomp.oacc-fortran/par-reduction-2-2.f: Likewise.
+	* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/parallel-reduction.f90: Likewise.
+
+2021-04-26  Tobias Burnus  <tobias@codesourcery.com>
+
+	* testsuite/libgomp.oacc-fortran/par-reduction-2-1.f:
+	Correct spelling in dg-bogus to match -Wopenacc-parallelism.
+	* testsuite/libgomp.oacc-fortran/par-reduction-2-2.f: Likewise.
+	* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/parallel-reduction.f90: Likewise.
+
+2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
+	    Nathan Sidwell  <nathan@codesourcery.com>
+	    Tom de Vries  <vries@codesourcery.com>
+	    Julian Brown  <julian@codesourcery.com>
+	    Kwok Cheung Yeung  <kcy@codesourcery.com>
+
+	* testsuite/libgomp.oacc-c-c++-common/firstprivate-1.c: Specify
+	'-Wopenacc-parallelism', and match diagnostics, as appropriate.
+	* testsuite/libgomp.oacc-c-c++-common/loop-auto-1.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-1.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-2.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/loop-w-1.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/mode-transitions.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/par-reduction-2.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/parallel-reduction.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/pr85381-3.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/private-variables.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/reduction-5.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/reduction-7.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/routine-g-1.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/routine-w-1.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/routine-wv-2.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/static-variable-1.c:
+	Likewise.
+	* testsuite/libgomp.oacc-fortran/optional-private.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/par-reduction-2-1.f: Likewise.
+	* testsuite/libgomp.oacc-fortran/par-reduction-2-2.f: Likewise.
+	* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/parallel-reduction.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/pr84028.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/private-variables.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/reduction-1.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/reduction-5.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/routine-7.f90: Likewise.
+
+2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c: Don't
+	compile with '-w'.
+	* testsuite/libgomp.oacc-c-c++-common/par-reduction-2.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/parallel-reduction.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/reduction-5.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/reduction-6.c: Likewise.
+	* testsuite/libgomp.oacc-fortran/parallel-reduction.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/reduction-1.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/reduction-5.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Likewise.
+	* testsuite/libgomp.oacc-fortran/reduction-7.f90: Likewise.
+
 2021-04-22  Richard Biener  <rguenther@suse.de>
 
 	* testsuite/libgomp.c-c++-common/reduction-16.c: Use -latomic
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index eeab6a24214..0a259ce80a3 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,59 @@
+2021-04-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/experimental/internet (tcp::no_delay, v6_only)
+	(unicast::hops, multicast::hops, multicast::enable_loopback):
+	Change access of base class and static data members. Add
+	using-declaration for __socket_crtp::operator=(_Tp).
+	(multicast::__mcastopt): New type.
+	(multicast::join_group, multicast::leave_group): Derive from
+	__mcastopt for common implementation.
+	* include/experimental/socket: Add comment.
+	* testsuite/experimental/net/internet/socket/opt.cc: New test.
+	* testsuite/experimental/net/socket/socket_base.cc: Check for
+	protected constructor/destructor of socket_base. Check for
+	explicit constructors of socket option classes.
+
+2021-04-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/experimental/bits/net.h (__socket_base): Add
+	bool template parameter to allow BooleanSocketOption and
+	IntegerSocketOption to have different __socket_base<int>
+	base classes.
+	(__socket_base<bool>): Adjust base class.
+	(__socket_base<int>): Add partial specialization.
+	(__socket_crtp::operator=(_Tp)): Add noexcept-specifier.
+	* include/experimental/socket (socket_base::broadcast)
+	(socket_base::debug, socket_base::do_not_route)
+	(socket_base::keep_alive, socket_base::linger)
+	(socket_base::out_of_band_inline)
+	(socket_base::receive_buffer_size)
+	(socket_base::receive_low_watermark)
+	(socket_base::reuse_address, socket_base::send_buffer_size)
+	(socket_base::send_low_watermark): Add using-declaration for
+	__socket_crtp::operator=(_Tp).
+	* testsuite/experimental/net/socket/socket_base.cc: Check
+	properties of socket option types.
+
+2021-04-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/experimental/internet (resolver_base::flags): Remove
+	enumerators. Initialize constants directly with desired values.
+	Make all operators constexpr and noexcept.
+	* testsuite/experimental/net/internet/resolver/base.cc: Use
+	__gnu_test::test_bitmask_values for bitmask type. Check
+	construction and destruction is protected.
+
+2021-04-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/semaphore_base.h: Include <exception> and <errno.h>.
+
+2021-04-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/100259
+	* include/experimental/internet (net::ip::make_error_code)
+	(net::ip::make_error_condition, net::ip::make_network_v4)
+	(net::ip::operator==(const udp&, const udp&)): Add 'inline'.
+
 2021-04-24  David Edelsohn  <dje.gcc@gmail.com>
 
 	* testsuite/lib/dg-options.exp (atomic_link_flags): New.