+2021-04-08 David Edelsohn <dje.gcc@gmail.com>
+
+ * config/rs6000/rs6000.c (rs6000_xcoff_select_section): Select
+ TLS BSS before TLS data.
+ * config/rs6000/xcoff.h (ASM_OUTPUT_TLS_COMMON): Use .comm.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * doc/sourcebuild.texi (stdint_types_mbig_endian): Document.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * match.pd: Extend vec_cond folds to handle shifts.
+
+2021-04-08 Maciej W. Rozycki <macro@orcam.me.uk>
+
+ * config/vax/vax.md: Fix comment for `*bit<mode>' pattern's
+ peephole.
+
+2021-04-08 Alex Coplan <alex.coplan@arm.com>
+
+ PR target/99647
+ * config/arm/iterators.md (MVE_vecs): New.
+ (V_elem): Also handle V2DF.
+ * config/arm/mve.md (*mve_mov<mode>): Rename to ...
+ (*mve_vdup<mode>): ... this. Remove second alternative since
+ vec_duplicate of const_int is not canonical RTL, and we don't
+ want to match symbol_refs.
+ (*mve_vec_duplicate<mode>): Delete (pattern is redundant).
+
+2021-04-08 Xionghu Luo <luoxhu@linux.ibm.com>
+
+ * fold-const.c (fold_single_bit_test): Fix typo.
+ * print-rtl.c (print_rtx_insn_vec): Call print_rtl_single
+ instead.
+
2021-04-07 Richard Sandiford <richard.sandiford@arm.com>
PR tree-optimization/97513
+2021-04-08 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/99042
+ PR analyzer/99774
+ * engine.cc
+ (impl_region_model_context::impl_region_model_context): Add
+ uncertainty param and use it to initialize m_uncertainty.
+ (impl_region_model_context::get_uncertainty): New.
+ (impl_sm_context::get_fndecl_for_call): Add NULL for new
+ uncertainty param when constructing impl_region_model_context.
+ (impl_sm_context::get_state): Likewise.
+ (impl_sm_context::set_next_state): Likewise.
+ (impl_sm_context::warn): Likewise.
+ (exploded_node::on_stmt): Add uncertainty param
+ and use it when constructing impl_region_model_context.
+ (exploded_node::on_edge): Add uncertainty param and pass
+ to on_edge call.
+ (exploded_node::detect_leaks): Create uncertainty_t and pass to
+ impl_region_model_context.
+ (exploded_graph::get_or_create_node): Create uncertainty_t and
+ pass to prune_for_point.
+ (maybe_process_run_of_before_supernode_enodes): Create
+ uncertainty_t and pass to impl_region_model_context.
+ (exploded_graph::process_node): Create uncertainty_t instances and
+ pass around as needed.
+ * exploded-graph.h
+ (impl_region_model_context::impl_region_model_context): Add
+ uncertainty param.
+ (impl_region_model_context::get_uncertainty): New decl.
+ (impl_region_model_context::m_uncertainty): New field.
+ (exploded_node::on_stmt): Add uncertainty param.
+ (exploded_node::on_edge): Likewise.
+ * program-state.cc (sm_state_map::on_liveness_change): Get
+ uncertainty from context and use it to unset sm-state from
+ svalues as appropriate.
+ (program_state::on_edge): Add uncertainty param and use it when
+ constructing impl_region_model_context. Fix indentation.
+ (program_state::prune_for_point): Add uncertainty param and use it
+ when constructing impl_region_model_context.
+ (program_state::detect_leaks): Get any uncertainty from ctxt and
+ use it to get maybe-live svalues for dest_state, rather than
+ definitely-live ones; use this when determining which svalues
+ have leaked.
+ (selftest::test_program_state_merging): Create uncertainty_t and
+ pass to impl_region_model_context.
+ * program-state.h (program_state::on_edge): Add uncertainty param.
+ (program_state::prune_for_point): Likewise.
+ * region-model-impl-calls.cc (call_details::get_uncertainty): New.
+ (region_model::impl_call_memcpy): Pass uncertainty to
+ mark_region_as_unknown call.
+ (region_model::impl_call_memset): Likewise.
+ (region_model::impl_call_strcpy): Likewise.
+ * region-model-reachability.cc (reachable_regions::handle_sval):
+ Also add sval to m_mutable_svals.
+ * region-model.cc (region_model::on_assignment): Pass any
+ uncertainty from ctxt to the store::set_value call.
+ (region_model::handle_unrecognized_call): Get any uncertainty from
+ ctxt and use it to record mutable svalues at the unknown call.
+ (region_model::get_reachable_svalues): Add uncertainty param and
+ use it to mark any maybe-bound svalues as being reachable.
+ (region_model::set_value): Pass any uncertainty from ctxt to the
+ store::set_value call.
+ (region_model::mark_region_as_unknown): Add uncertainty param and
+ pass it on to the store::mark_region_as_unknown call.
+ (region_model::update_for_call_summary): Add uncertainty param and
+ pass it on to the region_model::mark_region_as_unknown call.
+ * region-model.h (call_details::get_uncertainty): New decl.
+ (region_model::get_reachable_svalues): Add uncertainty param.
+ (region_model::mark_region_as_unknown): Add uncertainty param.
+ (region_model_context::get_uncertainty): New vfunc.
+ (noop_region_model_context::get_uncertainty): New vfunc
+ implementation.
+ * store.cc (dump_svalue_set): New.
+ (uncertainty_t::dump_to_pp): New.
+ (uncertainty_t::dump): New.
+ (binding_cluster::clobber_region): Pass NULL for uncertainty to
+ remove_overlapping_bindings.
+ (binding_cluster::mark_region_as_unknown): Add uncertainty param
+ and pass it to remove_overlapping_bindings.
+ (binding_cluster::remove_overlapping_bindings): Add uncertainty param.
+ Use it to record any svalues that were in clobbered bindings.
+ (store::set_value): Add uncertainty param. Pass it to
+ binding_cluster::mark_region_as_unknown when handling symbolic
+ regions.
+ (store::mark_region_as_unknown): Add uncertainty param and pass it
+ to binding_cluster::mark_region_as_unknown.
+ (store::remove_overlapping_bindings): Add uncertainty param and
+ pass it to binding_cluster::remove_overlapping_bindings.
+ * store.h (binding_cluster::mark_region_as_unknown): Add
+ uncertainty param.
+ (binding_cluster::remove_overlapping_bindings): Likewise.
+ (store::set_value): Likewise.
+ (store::mark_region_as_unknown): Likewise.
+
2021-04-05 David Malcolm <dmalcolm@redhat.com>
PR analyzer/99906
+2021-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ * c-warn.c (do_warn_double_promotion): Fix comment typo,
+ occured -> occurred.
+ (check_alignment_of_packed_member): Fix a comment typo,
+ memeber -> member.
+ (warn_parm_ptrarray_mismatch): Fix comment typos, os -> of
+ and onless -> unless.
+ (warn_parm_array_mismatch): Fix comment typos, declaratation
+ -> declaration and woud -> would. Fix up comment indentation.
+
+2021-04-08 Martin Sebor <msebor@redhat.com>
+
+ PR middle-end/99883
+ * c.opt (Wmismatched-new-delete): Correct spelling.
+
2021-04-05 Eric Botcazou <ebotcazou@adacore.com>
* c-ada-spec.c (is_simple_enum): Minor tweaks.
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/99874
+ * constraint.cc (get_normalized_constraints_from_decl): Handle
+ regenerated lambdas.
+ (satisfy_declaration_constraints): Likewise. Check for
+ dependent args later.
+ * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): Replace with ...
+ (LAMBDA_EXPR_REGENERATED_FROM): ... this.
+ (LAMBDA_EXPR_REGENERATING_TARGS): New.
+ (tree_lambda_expr::regenerated_from): New data member.
+ (tree_lambda_expr::regenerating_targs): New data member.
+ (add_to_template_args): Declare.
+ (regenerated_lambda_fn_p): Likewise.
+ (most_general_lambda): Likewise.
+ * lambda.c (build_lambda_expr): Set LAMBDA_EXPR_REGENERATED_FROM
+ and LAMBDA_EXPR_REGENERATING_TARGS.
+ * pt.c (add_to_template_args): No longer static.
+ (tsubst_function_decl): Unconditionally propagate constraints on
+ the substituted function decl.
+ (instantiated_lambda_fn_p): Rename to ...
+ (regenerated_lambda_fn_p): ... this. Check
+ LAMBDA_EXPR_REGENERATED_FROM instead of
+ LAMBDA_EXPR_INSTANTIATED.
+ (most_general_lambda): Define.
+ (enclosing_instantiation_of): Adjust after renaming
+ instantiated_lambda_fn_p.
+ (tsubst_lambda_expr): Don't set LAMBDA_EXPR_INSTANTIATED. Set
+ LAMBDA_EXPR_REGENERATED_FROM and LAMBDA_EXPR_REGENERATING_TARGS.
+ Don't substitute or set constraints on the regenerated lambda.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/97679
+ * pt.c (build_deduction_guide): Document OUTER_ARGS. Substitute
+ them into the propagated constraints.
+
+2021-04-08 Jason Merrill <jason@redhat.com>
+
+ PR c++/91849
+ * call.c (convert_like_internal): Improve reference diagnostic.
+
+2021-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ PR c++/99859
+ * constexpr.c (addr_of_non_const_var): New function.
+ (cxx_bind_parameters_in_call): Set *non_constant_args to true
+ even if cp_walk_tree on arg with addr_of_non_const_var callback
+ returns true.
+
+2021-04-08 Jason Merrill <jason@redhat.com>
+
+ PR c++/94529
+ * pt.c (determine_specialization): Improve diagnostic.
+
+2021-04-08 Marek Polacek <polacek@redhat.com>
+
+ PR c++/99844
+ * decl.c (build_explicit_specifier): Call
+ check_for_bare_parameter_packs.
+ * except.c (build_noexcept_spec): Likewise.
+
2021-04-07 Jason Merrill <jason@redhat.com>
PR c++/41723
+2021-04-08 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * d-attribs.cc: Include fold-const.h and opts.h.
+ (attr_noreturn_exclusions): Add alloc_size.
+ (attr_const_pure_exclusions): Likewise.
+ (attr_inline_exclusions): Add target_clones.
+ (attr_noinline_exclusions): Rename forceinline to always_inline.
+ (attr_target_exclusions): New array.
+ (attr_target_clones_exclusions): New array.
+ (attr_alloc_exclusions): New array.
+ (attr_cold_hot_exclusions): New array.
+ (d_langhook_common_attribute_table): Add new D attribute handlers.
+ (build_attributes): Update to look for gcc.attributes. Issue warning
+ if not given a struct literal. Handle void initialized arguments.
+ (handle_always_inline_attribute): Remove function.
+ (d_handle_noinline_attribute): Don't extract TYPE_LANG_FRONTEND.
+ (d_handle_forceinline_attribute): Rename to...
+ (d_handle_always_inline_attribute): ...this. Remove special handling.
+ (d_handle_flatten_attribute): Don't extract TYPE_LANG_FRONTEND.
+ (d_handle_target_attribute): Likewise. Warn about empty arguments.
+ (d_handle_target_clones_attribute): New function.
+ (optimize_args): New static variable.
+ (parse_optimize_options): New function.
+ (d_handle_optimize_attribute): New function.
+ (d_handle_noclone_attribute): Don't extract TYPE_LANG_FRONTEND.
+ (d_handle_alias_attribute): Remove function.
+ (d_handle_noicf_attribute): New function.
+ (d_handle_noipa_attribute): New function.
+ (d_handle_section_attribute): Call the handle_generic_attribute target
+ hook after performing target independent processing.
+ (d_handle_symver_attribute): New function.
+ (d_handle_noplt_attribute): New function.
+ (positional_argument): New function.
+ (d_handle_alloc_size_attribute): New function.
+ (d_handle_cold_attribute): New function.
+ (d_handle_restrict_attribute): New function.
+ (d_handle_used_attribute): New function.
+ * decl.cc (gcc_attribute_p): Update to look for gcc.attributes.
+ (get_symbol_decl): Update decl source location of old prototypes to
+ the new declaration being merged.
+ * types.cc (layout_aggregate_members): Apply user defined attributes
+ on fields.
+
2021-04-06 Iain Buclaw <ibuclaw@gdcproject.org>
PR d/99917
+2021-04-08 Martin Sebor <msebor@redhat.com>
+
+ PR middle-end/99883
+ * lto-lang.c (lto_post_options): Correct spelling.
+
2021-02-28 Jakub Jelinek <jakub@redhat.com>
PR c/99304
+2021-04-08 David Edelsohn <dje.gcc@gmail.com>
+
+ * g++.dg/gomp/tls-5.C: Expect tbss failure on AIX.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/99874
+ * g++.dg/cpp2a/concepts-lambda16.C: New test.
+ * g++.dg/cpp2a/concepts-lambda17.C: New test.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/97679
+ * g++.dg/cpp2a/concepts-ctad3.C: New test.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * lib/scanasm.exp (scan-lto-assembler): Update expected name
+ of dump file.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * lib/target-supports.exp
+ (check_effective_target_stdint_types_mbig_endian): New proc.
+ * gcc.target/aarch64/advsimd-intrinsics/bf16_get-be.c: Require
+ stdint_types_mbig_endian.
+ * gcc.target/aarch64/advsimd-intrinsics/bfdot-2.c: Likewise.
+ * gcc.target/aarch64/advsimd-intrinsics/vdot-3-2.c: Likewise.
+
+2021-04-08 Jason Merrill <jason@redhat.com>
+
+ PR c++/91849
+ * g++.dg/conversion/pr66211.C: Adjust diagnostic.
+ * g++.dg/conversion/ref7.C: New test.
+
+2021-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ PR c++/99859
+ * g++.dg/cpp1y/constexpr-99859-1.C: New test.
+ * g++.dg/cpp1y/constexpr-99859-2.C: New test.
+ * g++.dg/cpp2a/constexpr-new18.C: New test.
+ * g++.dg/cpp2a/constexpr-new19.C: New test.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * gcc.dg/vect/pr99102.c: Add -fdump-tree-vect-details.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * gcc.target/aarch64/sve/acle/general-c/func_redef_1.c: Remove
+ "was here" from error message.
+ * gcc.target/aarch64/sve/acle/general-c/func_redef_2.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/func_redef_3.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/func_redef_6.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_1.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_2.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_3.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_4.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_5.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_6.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_8.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_9.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_10.c: Likewise.
+ * gcc.target/aarch64/sve/acle/general-c/type_redef_13.c: Likewise.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * gcc.target/aarch64/asimd-mull-elem.c: Add +nosve.
+ * gcc.target/aarch64/pr98772.c: Likewise.
+ * gcc.target/aarch64/simd/vect_su_add_sub.c: Likewise.
+
+2021-04-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ * gcc.target/aarch64/sve/mul_2.c: Adjust negative constants to avoid
+ conversion to shifts and adds.
+
+2021-04-08 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/99042
+ PR analyzer/99774
+ * gcc.dg/analyzer/pr99042.c: New test.
+ * gcc.dg/analyzer/pr99774-1.c: New test.
+ * gcc.dg/analyzer/pr99774-2.c: New test.
+
+2021-04-08 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * gdc.dg/gdc108.d: Update test.
+ * gdc.dg/gdc142.d: Likewise.
+ * gdc.dg/pr90136a.d: Likewise.
+ * gdc.dg/pr90136b.d: Likewise.
+ * gdc.dg/pr90136c.d: Likewise.
+ * gdc.dg/pr95173.d: Likewise.
+ * gdc.dg/attr_allocsize1.d: New test.
+ * gdc.dg/attr_allocsize2.d: New test.
+ * gdc.dg/attr_alwaysinline1.d: New test.
+ * gdc.dg/attr_cold1.d: New test.
+ * gdc.dg/attr_exclusions1.d: New test.
+ * gdc.dg/attr_exclusions2.d: New test.
+ * gdc.dg/attr_flatten1.d: New test.
+ * gdc.dg/attr_module.d: New test.
+ * gdc.dg/attr_noclone1.d: New test.
+ * gdc.dg/attr_noicf1.d: New test.
+ * gdc.dg/attr_noinline1.d: New test.
+ * gdc.dg/attr_noipa1.d: New test.
+ * gdc.dg/attr_noplt1.d: New test.
+ * gdc.dg/attr_optimize1.d: New test.
+ * gdc.dg/attr_optimize2.d: New test.
+ * gdc.dg/attr_optimize3.d: New test.
+ * gdc.dg/attr_optimize4.d: New test.
+ * gdc.dg/attr_restrict1.d: New test.
+ * gdc.dg/attr_section1.d: New test.
+ * gdc.dg/attr_symver1.d: New test.
+ * gdc.dg/attr_target1.d: New test.
+ * gdc.dg/attr_targetclones1.d: New test.
+ * gdc.dg/attr_used1.d: New test.
+ * gdc.dg/attr_used2.d: New test.
+ * gdc.dg/attr_weak1.d: New test.
+ * gdc.dg/imports/attributes.d: New test.
+
+2021-04-08 Jason Merrill <jason@redhat.com>
+
+ PR c++/94529
+ * g++.dg/template/mem-spec2.C: New test.
+
+2021-04-08 Marek Polacek <polacek@redhat.com>
+
+ PR c++/99844
+ * g++.dg/cpp2a/explicit16.C: Use c++20.
+ * g++.dg/cpp0x/noexcept66.C: New test.
+ * g++.dg/cpp2a/explicit17.C: New test.
+
+2021-04-08 Alex Coplan <alex.coplan@arm.com>
+
+ PR target/99647
+ * gcc.c-torture/compile/pr99647.c: New test.
+
2021-04-07 Jason Merrill <jason@redhat.com>
PR c++/41723
+2021-04-08 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * libdruntime/Makefile.am (DRUNTIME_DSOURCES): Add
+ gcc/attributes.d.
+ * libdruntime/Makefile.in: Regenerate.
+ * libdruntime/gcc/attribute.d: Deprecate module, publicly import
+ gcc.attributes.
+ * libdruntime/gcc/deh.d: Update imports.
+ * libdruntime/gcc/attributes.d: New file.
+
2021-04-06 Iain Buclaw <ibuclaw@gdcproject.org>
* libdruntime/MERGE: Merge upstream druntime 1134b710.
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/basic_string.h: Tweak doxygen comment.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/ranges (__detail::find): Define.
+ (split_view::_OuterIter::operator++): Apply proposed resolution
+ of LWG 3505.
+ * testsuite/std/ranges/adaptors/split.cc (test10): New test.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/ranges (__detail::find_if): Simplify.
+ (__detail::find_if_not): Likewise.
+ (__detail::min): Remove.
+ (__detail::mismatch): Simplify.
+ (take_view::size): Use std::min instead of __detail::min.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/ranges (__detail::__returnable_element): New
+ concept.
+ (elements_view): Use this concept in its constraints. Add
+ missing private access specifier.
+ (elements_view::_S_get_element): Define as per LWG 3502.
+ (elements_view::operator*, elements_view::operator[]): Use
+ _S_get_element.
+ (elements_view::operator++): Remove unnecessary constraint
+ as per LWG 3492.
+ * testsuite/std/ranges/adaptors/elements.cc (test05): New test.
+
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/Makefile.am (stamp-pdf-doxygen): Also grep for
+ out-of-memory error in log file.
+ * doc/Makefile.in: Regenerate.
+
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * configure: Regenerate.
+
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/random.h: Fix doxygen group commands.
+ * include/bits/regex_constants.h: Likewise.
+ * include/tr1/random.h: Likewise.
+
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/hashtable.h (_Hashtable::_S_nothrow_move()):
+ New function to determine noexcept-specifier for move
+ constructors.
+ (_Hashtable): Use _S_nothrow_move() on move constructors.
+ * testsuite/23_containers/unordered_map/cons/noexcept_move_construct.cc:
+ Correct static assertion message.
+ * testsuite/23_containers/unordered_multimap/cons/noexcept_move_construct.cc:
+ Likewise.
+ * testsuite/23_containers/unordered_multiset/cons/noexcept_move_construct.cc:
+ Likewise.
+ * testsuite/23_containers/unordered_set/cons/noexcept_move_construct.cc:
+ Likewise.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/98384
+ * testsuite/20_util/to_chars/long_double.cc: Don't run the test
+ on targets without a large long double. XFAIL the execution on
+ targets with a non-conforming printf.
+
+2021-04-08 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/99433
+ * include/std/ranges (__adaptor::__maybe_refwrap): Remove.
+ (__adaptor::__adaptor_invocable): New concept.
+ (__adaptor::__adaptor_partial_app_viable): New concept.
+ (__adaptor::_RangeAdaptorClosure): Rewrite, turning it into a
+ non-template base class.
+ (__adaptor::_RangeAdaptor): Rewrite, turning it into a CRTP base
+ class template.
+ (__adaptor::_Partial): New class template that represents
+ partial application of a range adaptor non-closure.
+ (__adaptor::__pipe_invocable): New concept.
+ (__adaptor::_Pipe): New class template.
+ (__detail::__can_ref_view): New concept.
+ (__detail::__can_subrange): New concept.
+ (all): Replace the lambda here with ...
+ (_All): ... this functor. Add appropriate constraints.
+ (__detail::__can_filter_view): New concept.
+ (filter, _Filter): As in all/_All.
+ (__detail::__can_transform): New concept.
+ (transform, _Transform): As in all/_All.
+ (__detail::__can_take_view): New concept.
+ (take, _Take): As in all/_All.
+ (__detail::__can_take_while_view): New concept.
+ (take_while, _TakeWhile): As in all/_All.
+ (__detail::__can_drop_view): New concept.
+ (drop, _Drop): As in all/_All.
+ (__detail::__can_drop_while_view): New concept.
+ (drop_while, _DropWhile): As in all/_All.
+ (__detail::__can_join_view): New concept.
+ (join, _Join): As in all/_All.
+ (__detail::__can_split_view): New concept.
+ (split, _Split): As in all/_All. Rename template parameter
+ _Fp to _Pattern.
+ (__detail::__already_common): New concept.
+ (__detail::__can_common_view): New concept.
+ (common, _Common): As in all/_All.
+ (__detail::__can_reverse_view): New concept.
+ (reverse, _Reverse): As in all/_All.
+ (__detail::__can_elements_view): New concept.
+ (elements, _Elements): As in all/_All.
+ (keys, values): Adjust.
+ * testsuite/std/ranges/adaptors/99433.cc: New test.
+ * testsuite/std/ranges/adaptors/all.cc: No longer expect that
+ adding empty range adaptor closure objects to a pipeline doesn't
+ increase the size of the pipeline.
+ (test05): New test.
+ * testsuite/std/ranges/adaptors/common.cc (test03): New test.
+ * testsuite/std/ranges/adaptors/drop.cc (test09): New test.
+ * testsuite/std/ranges/adaptors/drop_while.cc (test04): New test.
+ * testsuite/std/ranges/adaptors/elements.cc (test04): New test.
+ * testsuite/std/ranges/adaptors/filter.cc (test06): New test.
+ * testsuite/std/ranges/adaptors/join.cc (test09): New test.
+ * testsuite/std/ranges/adaptors/p2281.cc: New test.
+ * testsuite/std/ranges/adaptors/reverse.cc (test07): New test.
+ * testsuite/std/ranges/adaptors/split.cc (test01, test04):
+ Adjust.
+ (test09): New test.
+ * testsuite/std/ranges/adaptors/split_neg.cc (test01): Adjust
+ expected error message.
+ (test02): Likewise. Extend test.
+ * testsuite/std/ranges/adaptors/take.cc (test06): New test.
+ * testsuite/std/ranges/adaptors/take_while.cc (test05): New test.
+ * testsuite/std/ranges/adaptors/transform.cc (test07, test08):
+ New test.
+
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/string_view: Adjust Doxygen @file comment.
+
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/type_traits (is_scoped_enum<T>): Constrain partial
+ specialization to not match incomplete enum types. Use a
+ requires-expression instead of instantiating is_convertible.
+ (is_scoped_enum<const T>): Add as workaround for PR c++/99968.
+ * testsuite/20_util/is_scoped_enum/value.cc: Check with
+ incomplete types and opaque-enum-declarations.
+
2021-04-07 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/99805
+2021-04-08 Jonathan Wakely <jwakely@redhat.com>
+
+ * generate_libstdcxx_web_docs: Add --disable-multilib to
+ configure command.
+
+2021-04-08 Martin Liska <mliska@suse.cz>
+
+ * branch_changer.py: Fix wrongly converted assert.
+
+2021-04-08 Martin Liska <mliska@suse.cz>
+
+ * branch_changer.py: Modernize and fix flake8 issues.
+ * setup.cfg: New file.
+
2020-12-16 Jakub Jelinek <jakub@redhat.com>
* update_version_git: Put BASEDIR into /sourceware/snapshot-tmp/gcc