[gcc r12-2750] Daily bump.

[gcc r12-2750] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:2697f8324fbb09b0d92036ba6a6b8a2b8d256b23

commit r12-2750-g2697f8324fbb09b0d92036ba6a6b8a2b8d256b23
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Thu Aug 5 00:17:03 2021 +0000

    Daily bump.

Diff:
---
 gcc/ChangeLog           | 204 ++++++++++++++++++++++++++++++++++++++++++++++++
 gcc/DATESTAMP           |   2 +-
 gcc/analyzer/ChangeLog  |  36 +++++++++
 gcc/cp/ChangeLog        |   6 ++
 gcc/testsuite/ChangeLog | 120 ++++++++++++++++++++++++++++
 libgcc/ChangeLog        |   4 +
 libstdc++-v3/ChangeLog  | 127 ++++++++++++++++++++++++++++++
 7 files changed, 498 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 04757bae27d..d888dc5798d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,207 @@
+2021-08-04  David Malcolm  <dmalcolm@redhat.com>
+
+	PR analyzer/101570
+	* Makefile.in (ANALYZER_OBJS): Add analyzer/region-model-asm.o.
+
+2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/101742
+	* config/i386/i386.h (STORE_MAX_PIECES): Allow 16/32/64 bytes
+	only if TARGET_INTER_UNIT_MOVES_TO_VEC is true.
+
+2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/101772
+	* config/i386/i386-expand.c (ix86_expand_vector_move): Call
+	ix86_gen_scratch_sse_rtx to get a scratch SSE register to copy
+	data with SSE register from one memory location to another.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* config/s390/s390.c (expand_perm_with_vpdi): New function.
+	(vectorize_vec_perm_const_1): Call expand_perm_with_vpdi.
+	* config/s390/vector.md (*vpdi1<mode>, @vpdi1<mode>): Enable a
+	parameterized expander.
+	(*vpdi4<mode>, @vpdi4<mode>): Likewise.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* config/s390/s390.c (MAX_VECT_LEN): Define macro.
+	(struct expand_vec_perm_d): Define struct.
+	(expand_perm_with_merge): New function.
+	(vectorize_vec_perm_const_1): New function.
+	(s390_vectorize_vec_perm_const): New function.
+	(TARGET_VECTORIZE_VEC_PERM_CONST): Define target macro.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* config/s390/vector.md (V_HW_64): Remove mode iterator.
+	(*vec_load_pair<mode>): Use V_HW_2 instead of V_HW_64.
+	* config/s390/vx-builtins.md
+	(vec_scatter_element<V_HW_2:mode>_SI): Use V_HW_2 instead of
+	V_HW_64.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* config/s390/s390.md (UNSPEC_VEC_PERMI): Remove constant
+	definition.
+	* config/s390/vector.md (*vpdi1<mode>, *vpdi4<mode>): New pattern
+	definitions.
+	* config/s390/vx-builtins.md (*vec_permi<mode>): Emit generic rtx
+	instead of an unspec.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* config/s390/s390-modes.def: Add more vector modes to support
+	concatenation of two vectors.
+	* config/s390/s390-protos.h (s390_expand_merge_perm_const): Add
+	prototype.
+	(s390_expand_merge): Likewise.
+	* config/s390/s390.c (s390_expand_merge_perm_const): New function.
+	(s390_expand_merge): New function.
+	* config/s390/s390.md (UNSPEC_VEC_MERGEH, UNSPEC_VEC_MERGEL):
+	Remove constant definitions.
+	* config/s390/vector.md (V_HW_2): Add mode iterators.
+	(VI_HW_4, V_HW_4): Rename VI_HW_4 to V_HW_4.
+	(vec_2x_nelts, vec_2x_wide): New mode attributes.
+	(*vmrhb, *vmrlb, *vmrhh, *vmrlh, *vmrhf, *vmrlf, *vmrhg, *vmrlg):
+	New pattern definitions.
+	(vec_widen_umult_lo_<mode>, vec_widen_umult_hi_<mode>)
+	(vec_widen_smult_lo_<mode>, vec_widen_smult_hi_<mode>)
+	(vec_unpacks_lo_v4sf, vec_unpacks_hi_v4sf, vec_unpacks_lo_v2df)
+	(vec_unpacks_hi_v2df): Adjust expanders to emit non-unspec RTX for
+	vec merge.
+	* config/s390/vx-builtins.md (V_HW_4): Remove mode iterator. Now
+	in vector.md.
+	(vec_mergeh<mode>, vec_mergel<mode>): Use s390_expand_merge to
+	emit vec merge pattern.
+
+2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64.c (aarch64_strip_extend_vec_half):
+	Define.
+	(aarch64_rtx_mult_cost): Traverse RTL tree to prevent cost of
+	vec_select high-half from being added into Neon multiply
+	cost.
+	* rtlanal.c (vec_series_highpart_p): Define.
+	* rtlanal.h (vec_series_highpart_p): Declare.
+
+2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64.c (aarch64_strip_duplicate_vec_elt):
+	Define.
+	(aarch64_rtx_mult_cost): Traverse RTL tree to prevent
+	vec_select cost from being added into Neon multiply cost.
+
+2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* tree-vect-loop.c (vect_better_loop_vinfo_p): Detect cases in
+	which old_loop_vinfo is an epilogue loop that handles a constant
+	number of iterations.
+
+2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* tree-vect-loop.c (vect_analyze_loop): Print a dump message
+	when a reanalyzed loop fails to be cheaper than the current
+	main loop.
+
+2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* config/aarch64/aarch64.c: Fix a typo.
+
+2021-08-04  Vincent Lefèvre  <vincent-gcc@vinc17.net>
+
+	PR gcov-profile/101773
+	* gcov-io.c (gcov_close): Check return code of a fclose.
+
+2021-08-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	PR ada/101575
+	* dwarf2out.c (dwarf2out_assembly_start): Emit a dummy
+	.file statement when needed.
+
+2021-08-04  Richard Biener  <rguenther@suse.de>
+
+	* tree-vect-data-refs.c (vect_check_gather_scatter):
+	Include widening conversions only when the result is
+	still handed by native gather or the current offset
+	size not already matches the data size.
+	Also succeed analysis in case there's no native support,
+	noted by a IFN_LAST ifn and a NULL decl.
+	(vect_analyze_data_refs): Always consider gathers.
+	* tree-vect-patterns.c (vect_recog_gather_scatter_pattern):
+	Test for no IFN gather rather than decl gather.
+	* tree-vect-stmts.c (vect_model_load_cost): Pass in the
+	gather-scatter info and cost emulated gathers accordingly.
+	(vect_truncate_gather_scatter_offset): Properly test for
+	no IFN gather.
+	(vect_use_strided_gather_scatters_p): Likewise.
+	(get_load_store_type): Handle emulated gathers and its
+	restrictions.
+	(vectorizable_load): Likewise.  Emulate them by extracting
+	scalar offsets, doing scalar loads and a vector construct.
+
+2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/101742
+	* expr.c (op_by_pieces_d::op_by_pieces_d): Add a max_pieces
+	argument to set m_max_size.
+	(move_by_pieces_d): Pass MOVE_MAX_PIECES to op_by_pieces_d.
+	(store_by_pieces_d): Pass STORE_MAX_PIECES to op_by_pieces_d.
+	(compare_by_pieces_d): Pass COMPARE_MAX_PIECES to op_by_pieces_d.
+
+2021-08-04  Roger Sayle  <roger@nextmovesoftware.com>
+	    Marc Glisse  <marc.glisse@inria.fr>
+
+	* match.pd (bit_ior, bit_xor): Canonicalize (X*C1)|(X*C2) and
+	(X*C1)^(X*C2) as X*(C1+C2), and related variants, using
+	tree_nonzero_bits to ensure that operands are bit-wise disjoint.
+
+2021-08-04  Richard Biener  <rguenther@suse.de>
+
+	* tree-ssa-forwprop.c (pass_forwprop::execute): Split
+	out code to decompose vector loads ...
+	(optimize_vector_load): ... here.  Generalize it to
+	handle intermediate widening and TARGET_MEM_REF loads
+	and apply it to loads with a supported vector mode as well.
+
+2021-08-04  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/101756
+	* tree-vect-slp.c (vectorizable_bb_reduc_epilogue): Make sure
+	the result of the reduction epilogue is compatible to the original
+	scalar result.
+
+2021-08-04  liuhongt  <hongtao.liu@intel.com>
+
+	PR target/101743
+	* config/i386/i386.md (peephole2): Refine predicate from
+	register_operand to general_reg_operand.
+
+2021-08-04  Aldy Hernandez  <aldyh@redhat.com>
+
+	* gimple-range-path.h (path_range_query::dump): Mark override.
+
+2021-08-04  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/101769
+	* tree-tailcall.c (eliminate_tail_call): Add the created loop
+	for the first recursion and return it via the new output parameter.
+	(optimize_tail_call): Pass through new output param.
+	(tree_optimize_tail_calls_1): After creating all latches,
+	add the created loop to the loop tree.  Do not mark loops for fixup.
+
+2021-08-04  Martin Liska  <mliska@suse.cz>
+
+	* doc/invoke.texi: Document threader-mode param.
+
+2021-08-04  liuhongt  <hongtao.liu@intel.com>
+
+	* config/i386/sse.md (cond_fma<mode>): New expander.
+	(cond_fms<mode>): Ditto.
+	(cond_fnma<mode>): Ditto.
+	(cond_fnms<mode>): Ditto.
+
 2021-08-03  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* config/rs6000/vsx.md (*vsx_le_perm_store_<mode>): Use && instead of &.
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 856144c7aa2..6168f4600b0 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210804
+20210805
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index 4579796ed00..43e3c634711 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,39 @@
+2021-08-04  David Malcolm  <dmalcolm@redhat.com>
+
+	PR analyzer/101570
+	* analyzer.cc (maybe_reconstruct_from_def_stmt): Add GIMPLE_ASM
+	case.
+	* analyzer.h (class asm_output_svalue): New forward decl.
+	(class reachable_regions): New forward decl.
+	* complexity.cc (complexity::from_vec_svalue): New.
+	* complexity.h (complexity::from_vec_svalue): New decl.
+	* engine.cc (feasibility_state::maybe_update_for_edge): Handle
+	asm stmts by calling on_asm_stmt.
+	* region-model-asm.cc: New file.
+	* region-model-manager.cc
+	(region_model_manager::maybe_fold_asm_output_svalue): New.
+	(region_model_manager::get_or_create_asm_output_svalue): New.
+	(region_model_manager::log_stats): Log m_asm_output_values_map.
+	* region-model.cc (region_model::on_stmt_pre): Handle GIMPLE_ASM.
+	* region-model.h (visitor::visit_asm_output_svalue): New.
+	(region_model_manager::get_or_create_asm_output_svalue): New decl.
+	(region_model_manager::maybe_fold_asm_output_svalue): New decl.
+	(region_model_manager::asm_output_values_map_t): New typedef.
+	(region_model_manager::m_asm_output_values_map): New field.
+	(region_model::on_asm_stmt): New.
+	* store.cc (binding_cluster::on_asm): New.
+	* store.h (binding_cluster::on_asm): New decl.
+	* svalue.cc (svalue::cmp_ptr): Handle SK_ASM_OUTPUT.
+	(asm_output_svalue::dump_to_pp): New.
+	(asm_output_svalue::dump_input): New.
+	(asm_output_svalue::input_idx_to_asm_idx): New.
+	(asm_output_svalue::accept): New.
+	* svalue.h (enum svalue_kind): Add SK_ASM_OUTPUT.
+	(svalue::dyn_cast_asm_output_svalue): New.
+	(class asm_output_svalue): New.
+	(is_a_helper <const asm_output_svalue *>::test): New.
+	(struct default_hash_traits<asm_output_svalue::key_t>): New.
+
 2021-08-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR analyzer/101721
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 5468792778d..5b3e191e5d9 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2021-08-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/101759
+	* parser.c (cp_parser_default_argument): Temporarily override
+	parser->omp_declare_simd and parser->oacc_routine to NULL.
+
 2021-08-02  Patrick Palka  <ppalka@redhat.com>
 
 	PR c++/100828
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 097a5b52365..04b011beabd 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,123 @@
+2021-08-04  David Malcolm  <dmalcolm@redhat.com>
+
+	PR analyzer/101570
+	* gcc.dg/analyzer/asm-x86-1.c: New test.
+	* gcc.dg/analyzer/asm-x86-lp64-1.c: New test.
+	* gcc.dg/analyzer/asm-x86-lp64-2.c: New test.
+	* gcc.dg/analyzer/pr101570.c: New test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-array_index_mask_nospec.c:
+	New test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-cpuid-paravirt-1.c: New
+	test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-cpuid-paravirt-2.c: New
+	test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-cpuid.c: New test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-rdmsr-paravirt.c: New
+	test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-rdmsr.c: New test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-wfx_get_ps_timeout-full.c:
+	New test.
+	* gcc.dg/analyzer/torture/asm-x86-linux-wfx_get_ps_timeout-reduced.c:
+	New test.
+
+2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/101742
+	* gcc.target/i386/pr101742a.c: New test.
+	* gcc.target/i386/pr101742b.c: Likewise.
+
+2021-08-04  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/101772
+	* gcc.target/i386/eh_return-2.c: New test.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* gcc.target/s390/vector/perm-vpdi.c: New test.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* gcc.target/s390/vector/perm-merge.c: New test.
+	* gcc.target/s390/vector/vec-types.h: New test.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* gcc.target/s390/zvector/vec-permi.c: Removed.
+	* gcc.target/s390/zvector/vec_permi.c: New test.
+
+2021-08-04  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* gcc.target/s390/vector/long-double-asm-in-out-hard-fp-reg.c:
+	Instead of vpdi with 0 and 5 vmrlg and vmrhg are used now.
+	* gcc.target/s390/vector/long-double-asm-inout-hard-fp-reg.c: Likewise.
+	* gcc.target/s390/zvector/vec-types.h: New test.
+	* gcc.target/s390/zvector/vec_merge.c: New test.
+
+2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* gcc.target/aarch64/vmul_high_cost.c: New test.
+
+2021-08-04  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* gcc.target/aarch64/vmul_element_cost.c: New test.
+
+2021-08-04  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* gcc.target/aarch64/sve/cost_model_12.c: New test.
+
+2021-08-04  Tamar Christina  <tamar.christina@arm.com>
+
+	PR tree-optimization/101750
+	* g++.dg/vect/pr99149.cc: Name class.
+
+2021-08-04  Richard Biener  <rguenther@suse.de>
+
+	* gcc.target/i386/vect-gather-1.c: New testcase.
+	* gfortran.dg/vect/vect-8.f90: Adjust.
+
+2021-08-04  Roger Sayle  <roger@nextmovesoftware.com>
+	    Marc Glisse  <marc.glisse@inria.fr>
+
+	* gcc.dg/fold-ior-4.c: New test.
+
+2021-08-04  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/101756
+	* gcc.dg/vect/bb-slp-pr101756.c: New testcase.
+
+2021-08-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/101759
+	* g++.dg/gomp/pr101759.C: New test.
+	* g++.dg/goacc/pr101759.C: New test.
+
+2021-08-04  Jakub Jelinek  <jakub@redhat.com>
+
+	* gcc.c-torture/execute/ieee/pr29302-1.x: Undo doubly applied patch.
+
+2021-08-04  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/101769
+	* g++.dg/tree-ssa/pr101769.C: New testcase.
+
+2021-08-04  liuhongt  <hongtao.liu@intel.com>
+
+	* gcc.target/i386/cond_op_addsubmul_d-2.c: Add
+	dg-require-effective-target for avx512.
+	* gcc.target/i386/cond_op_addsubmul_q-2.c: Ditto.
+	* gcc.target/i386/cond_op_addsubmul_w-2.c: Ditto.
+	* gcc.target/i386/cond_op_addsubmuldiv_double-2.c: Ditto.
+	* gcc.target/i386/cond_op_addsubmuldiv_float-2.c: Ditto.
+	* gcc.target/i386/cond_op_fma_double-2.c: Ditto.
+	* gcc.target/i386/cond_op_fma_float-2.c: Ditto.
+
+2021-08-04  liuhongt  <hongtao.liu@intel.com>
+
+	* gcc.target/i386/cond_op_fma_double-1.c: New test.
+	* gcc.target/i386/cond_op_fma_double-2.c: New test.
+	* gcc.target/i386/cond_op_fma_float-1.c: New test.
+	* gcc.target/i386/cond_op_fma_float-2.c: New test.
+
 2021-08-03  Eugene Rozenfeld  <erozen@microsoft.com>
 
 	* lib/profopt.exp: Pass gdwarf-4 when compiling test to profile; pass -gcov_version=2.
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 01bac7a5804..6845f39d368 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2021-08-04  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/t-slibgcc-fuchsia: Undo doubly applied patch.
+
 2021-07-15  Alan Modra  <amodra@gmail.com>
 
 	* config/rs6000/morestack.S (R2_SAVE): Define.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index b21bb6c5e59..b6b3a0efbe3 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,130 @@
+2021-08-04  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/forward_list.h: Add [[nodiscard]] to functions
+	with no side-effects.
+	* include/bits/stl_bvector.h: Likewise.
+	* include/bits/stl_deque.h: Likewise.
+	* include/bits/stl_list.h: Likewise.
+	* include/bits/stl_queue.h: Likewise.
+	* include/bits/stl_stack.h: Likewise.
+	* include/bits/stl_vector.h: Likewise.
+	* include/debug/deque: Likewise.
+	* include/debug/forward_list: Likewise.
+	* include/debug/list: Likewise.
+	* include/debug/safe_iterator.h: Likewise.
+	* include/debug/vector: Likewise.
+	* include/std/array: Likewise.
+	* testsuite/23_containers/array/creation/3_neg.cc: Use
+	-Wno-unused-result.
+	* testsuite/23_containers/array/debug/back1_neg.cc: Cast result
+	to void.
+	* testsuite/23_containers/array/debug/back2_neg.cc: Likewise.
+	* testsuite/23_containers/array/debug/front1_neg.cc: Likewise.
+	* testsuite/23_containers/array/debug/front2_neg.cc: Likewise.
+	* testsuite/23_containers/array/debug/square_brackets_operator1_neg.cc:
+	Likewise.
+	* testsuite/23_containers/array/debug/square_brackets_operator2_neg.cc:
+	Likewise.
+	* testsuite/23_containers/array/tuple_interface/get_neg.cc:
+	Adjust dg-error line numbers.
+	* testsuite/23_containers/deque/cons/clear_allocator.cc: Cast
+	result to void.
+	* testsuite/23_containers/deque/debug/invalidation/4.cc:
+	Likewise.
+	* testsuite/23_containers/deque/types/1.cc: Use
+	-Wno-unused-result.
+	* testsuite/23_containers/list/types/1.cc: Cast result to void.
+	* testsuite/23_containers/priority_queue/members/7161.cc:
+	Likewise.
+	* testsuite/23_containers/queue/members/7157.cc: Likewise.
+	* testsuite/23_containers/vector/59829.cc: Likewise.
+	* testsuite/23_containers/vector/ext_pointer/types/1.cc:
+	Likewise.
+	* testsuite/23_containers/vector/ext_pointer/types/2.cc:
+	Likewise.
+	* testsuite/23_containers/vector/types/1.cc: Use
+	-Wno-unused-result.
+
+2021-08-04  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/iterator_concepts.h (iter_move): Add
+	[[nodiscard]].
+	* include/bits/range_access.h (begin, end, cbegin, cend)
+	(rbegin, rend, crbegin, crend, size, data, ssize): Likewise.
+	* include/bits/ranges_base.h (ranges::begin, ranges::end)
+	(ranges::cbegin, ranges::cend, ranges::rbegin, ranges::rend)
+	(ranges::crbegin, ranges::crend, ranges::size, ranges::ssize)
+	(ranges::empty, ranges::data, ranges::cdata): Likewise.
+	* include/bits/stl_iterator.h (reverse_iterator, __normal_iterator)
+	(back_insert_iterator, front_insert_iterator, insert_iterator)
+	(move_iterator, move_sentinel, common_iterator)
+	(counted_iterator): Likewise.
+	* include/bits/stl_iterator_base_funcs.h (distance, next, prev):
+	Likewise.
+	* include/bits/stream_iterator.h (istream_iterator)
+	(ostream_iterartor): Likewise.
+	* include/bits/streambuf_iterator.h (istreambuf_iterator)
+	(ostreambuf_iterator): Likewise.
+	* include/std/ranges (views::single, views::iota, views::all)
+	(views::filter, views::transform, views::take, views::take_while)
+	(views::drop, views::drop_while, views::join, views::lazy_split)
+	(views::split, views::counted, views::common, views::reverse)
+	(views::elements): Likewise.
+	* testsuite/20_util/rel_ops.cc: Use -Wno-unused-result.
+	* testsuite/24_iterators/move_iterator/greedy_ops.cc: Likewise.
+	* testsuite/24_iterators/normal_iterator/greedy_ops.cc:
+	Likewise.
+	* testsuite/24_iterators/reverse_iterator/2.cc: Likewise.
+	* testsuite/24_iterators/reverse_iterator/greedy_ops.cc:
+	Likewise.
+	* testsuite/21_strings/basic_string/range_access/char/1.cc:
+	Cast result to void.
+	* testsuite/21_strings/basic_string/range_access/wchar_t/1.cc:
+	Likewise.
+	* testsuite/21_strings/basic_string_view/range_access/char/1.cc:
+	Likewise.
+	* testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
+	Likewise.
+	* testsuite/23_containers/array/range_access.cc: Likewise.
+	* testsuite/23_containers/deque/range_access.cc: Likewise.
+	* testsuite/23_containers/forward_list/range_access.cc:
+	Likewise.
+	* testsuite/23_containers/list/range_access.cc: Likewise.
+	* testsuite/23_containers/map/range_access.cc: Likewise.
+	* testsuite/23_containers/multimap/range_access.cc: Likewise.
+	* testsuite/23_containers/multiset/range_access.cc: Likewise.
+	* testsuite/23_containers/set/range_access.cc: Likewise.
+	* testsuite/23_containers/unordered_map/range_access.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_multimap/range_access.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_multiset/range_access.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_set/range_access.cc:
+	Likewise.
+	* testsuite/23_containers/vector/range_access.cc: Likewise.
+	* testsuite/24_iterators/customization_points/iter_move.cc:
+	Likewise.
+	* testsuite/24_iterators/istream_iterator/sentinel.cc:
+	Likewise.
+	* testsuite/24_iterators/istreambuf_iterator/sentinel.cc:
+	Likewise.
+	* testsuite/24_iterators/move_iterator/dr2061.cc: Likewise.
+	* testsuite/24_iterators/operations/prev_neg.cc: Likewise.
+	* testsuite/24_iterators/ostreambuf_iterator/2.cc: Likewise.
+	* testsuite/24_iterators/range_access/range_access.cc:
+	Likewise.
+	* testsuite/24_iterators/range_operations/100768.cc: Likewise.
+	* testsuite/26_numerics/valarray/range_access2.cc: Likewise.
+	* testsuite/28_regex/range_access.cc: Likewise.
+	* testsuite/experimental/string_view/range_access/char/1.cc:
+	Likewise.
+	* testsuite/experimental/string_view/range_access/wchar_t/1.cc:
+	Likewise.
+	* testsuite/ext/vstring/range_access.cc: Likewise.
+	* testsuite/std/ranges/adaptors/take.cc: Likewise.
+	* testsuite/std/ranges/p2259.cc: Likewise.
+
 2021-08-03  Jonathan Wakely  <jwakely@redhat.com>
 
 	* include/bits/random.tcc (linear_congruential_engine): Do not