[gcc r14-1587] Daily bump.

[gcc r14-1587] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:4f0d4825fa489cc1875c94ab405a800a8d76e506

commit r14-1587-g4f0d4825fa489cc1875c94ab405a800a8d76e506
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Wed Jun 7 00:17:25 2023 +0000

    Daily bump.

Diff:
---
 gcc/ChangeLog           | 169 ++++++++++++++++++++++++++++++++++++++++++++++++
 gcc/DATESTAMP           |   2 +-
 gcc/c/ChangeLog         |  13 ++++
 gcc/cp/ChangeLog        |  13 ++++
 gcc/fortran/ChangeLog   |  20 ++++++
 gcc/testsuite/ChangeLog |  59 +++++++++++++++++
 include/ChangeLog       |  14 ++++
 libgomp/ChangeLog       |  24 +++++++
 libiberty/ChangeLog     |   4 ++
 libstdc++-v3/ChangeLog  |  89 +++++++++++++++++++++++++
 10 files changed, 406 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fae8c101640..e6e212a7207 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,172 @@
+2023-06-06  Roger Sayle  <roger@nextmovesoftware.com>
+
+	* doc/rtl.texi (bitreverse, copysign): Document new RTX codes.
+	* rtl.def (BITREVERSE, COPYSIGN): Define new RTX codes.
+	* simplify-rtx.cc (simplify_unary_operation_1): Optimize
+	NOT (BITREVERSE x) as BITREVERSE (NOT x).
+	Optimize POPCOUNT (BITREVERSE x) as POPCOUNT x.
+	Optimize PARITY (BITREVERSE x) as PARITY x.
+	Optimize BITREVERSE (BITREVERSE x) as x.
+	(simplify_const_unary_operation) <case BITREVERSE>: Evaluate
+	BITREVERSE of a constant integer at compile-time.
+	(simplify_binary_operation_1) <case COPYSIGN>:  Optimize
+	COPY_SIGN (x, x) as x.  Optimize COPYSIGN (x, C) as ABS x
+	or NEG (ABS x) for constant C.  Optimize COPYSIGN (ABS x, y)
+	and COPYSIGN (NEG x, y) as COPYSIGN (x, y).
+	Optimize COPYSIGN (x, ABS y) as ABS x.
+	Optimize COPYSIGN (COPYSIGN (x, y), z) as COPYSIGN (x, z).
+	Optimize COPYSIGN (x, COPYSIGN (y, z)) as COPYSIGN (x, z).
+	(simplify_const_binary_operation): Evaluate COPYSIGN of constant
+	arguments at compile-time.
+
+2023-06-06  Uros Bizjak  <ubizjak@gmail.com>
+
+	* rtl.h (function_invariant_p): Change return type from int to bool.
+	* reload1.cc (function_invariant_p): Change return type from
+	int to bool and adjust function body accordingly.
+
+2023-06-06  Juzhe-Zhong  <juzhe.zhong@rivai.ai>
+
+	* config/riscv/autovec-opt.md (*<optab>_fma<mode>): New pattern.
+	(*single_<optab>mult_plus<mode>): Ditto.
+	(*double_<optab>mult_plus<mode>): Ditto.
+	(*sign_zero_extend_fma): Ditto.
+	(*zero_sign_extend_fma): Ditto.
+	* config/riscv/riscv-protos.h (enum insn_type): New enum.
+
+2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* gimplify.cc (omp_notice_variable): Apply GOVD_MAP_ALLOC_ONLY flag
+	and defaultmap flags if the defaultmap has GOVD_MAP_FORCE_PRESENT flag
+	set.
+	(omp_get_attachment): Handle map clauses with 'present' modifier.
+	(omp_group_base): Likewise.
+	(gimplify_scan_omp_clauses): Reorder present maps to come first.
+	Set GOVD flags for present defaultmaps.
+	(gimplify_adjust_omp_clauses_1): Set map kind for present defaultmaps.
+	* omp-low.cc (scan_sharing_clauses): Handle 'always, present' map
+	clauses.
+	(lower_omp_target): Handle map clauses with 'present' modifier.
+	Handle 'to' and 'from' clauses with 'present'.
+	* tree-core.h (enum omp_clause_defaultmap_kind): Add
+	OMP_CLAUSE_DEFAULTMAP_PRESENT defaultmap kind.
+	* tree-pretty-print.cc (dump_omp_clause): Handle 'map', 'to' and
+	'from' clauses with 'present' modifier.  Handle present defaultmap.
+	* tree.h (OMP_CLAUSE_MOTION_PRESENT): New #define.
+
+2023-06-06  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* config/rs6000/genfusion.pl: Delete some dead code.
+
+2023-06-06  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* config/rs6000/genfusion.pl (gen_ld_cmpi_p10_one): New, rewritten and
+	split out from...
+	(gen_ld_cmpi_p10): ... this.
+
+2023-06-06  Jeevitha Palanisamy  <jeevitha@linux.ibm.com>
+
+	PR target/106907
+	* config/rs6000/rs6000.cc (vec_const_128bit_to_bytes): Remove
+	duplicate expression.
+
+2023-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64-builtins.cc (aarch64_general_gimple_fold_builtin):
+	Handle unsigned reduc_plus_scal_ builtins.
+	* config/aarch64/aarch64-simd-builtins.def (addp): Delete DImode instances.
+	* config/aarch64/aarch64-simd.md (aarch64_addpdi): Delete.
+	* config/aarch64/arm_neon.h (vpaddd_s64): Reimplement with
+	__builtin_aarch64_reduc_plus_scal_v2di.
+	(vpaddd_u64): Reimplement with __builtin_aarch64_reduc_plus_scal_v2di_uu.
+
+2023-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64-simd.md (aarch64_<sur>shr_n<mode>): Delete.
+	(aarch64_<sra_op>rshr_n<mode><vczle><vczbe>_insn): New define_insn.
+	(aarch64_<sra_op>rshr_n<mode>): New define_expand.
+
+2023-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64-simd.md (aarch64_shrn<mode>_insn_le): Delete.
+	(aarch64_shrn<mode>_insn_be): Delete.
+	(*aarch64_<srn_op>shrn<mode>_vect):  Rename to...
+	(*aarch64_<srn_op>shrn<mode><vczle><vczbe>): ... This.
+	(aarch64_shrn<mode>): Remove reference to the above deleted patterns.
+	(aarch64_rshrn<mode>_insn_le): Delete.
+	(aarch64_rshrn<mode>_insn_be): Delete.
+	(aarch64_rshrn<mode><vczle><vczbe>_insn): New define_insn.
+	(aarch64_rshrn<mode>): Remove references to the above deleted patterns.
+
+2023-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64-protos.h (aarch64_parallel_select_half_p):
+	Define prototype.
+	(aarch64_pars_overlap_p): Likewise.
+	* config/aarch64/aarch64-simd.md (aarch64_<su>addlv<mode>):
+	Express in terms of UNSPEC_ADDV.
+	(*aarch64_<su>addlv<VDQV_L:mode>_ze<GPI:mode>): Likewise.
+	(*aarch64_<su>addlv<mode>_reduction): Define.
+	(*aarch64_uaddlv<mode>_reduction_2): Likewise.
+	* config/aarch64/aarch64.cc	(aarch64_parallel_select_half_p): Define.
+	(aarch64_pars_overlap_p): Likewise.
+	* config/aarch64/iterators.md (UNSPEC_SADDLV, UNSPEC_UADDLV): Delete.
+	(VQUADW): New mode attribute.
+	(VWIDE2X_S): Likewise.
+	(USADDLV): Delete.
+	(su): Delete handling of UNSPEC_SADDLV, UNSPEC_UADDLV.
+	* config/aarch64/predicates.md (vect_par_cnst_select_half): Define.
+
+2023-06-06  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/110055
+	* gimplify.cc (gimplify_target_expr): Do not emit
+	CLOBBERs for variables which have static storage duration
+	after gimplifying their initializers.
+
+2023-06-06  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/109143
+	* tree-ssa-structalias.cc (solution_set_expand): Avoid
+	one bitmap iteration and optimize bit range setting.
+
+2023-06-06  Hans-Peter Nilsson  <hp@axis.com>
+
+	PR bootstrap/110120
+	* postreload.cc (reload_cse_move2add, move2add_use_add2_insn): Use
+	XVECEXP, not XEXP, to access first item of a PARALLEL.
+
+2023-06-06  Pan Li  <pan2.li@intel.com>
+
+	* config/riscv/riscv-vector-builtins-types.def
+	(vfloat16mf4_t): Add vfloat16mf4_t to WF operations.
+	(vfloat16mf2_t): Likewise.
+	(vfloat16m1_t): Likewise.
+	(vfloat16m2_t): Likewise.
+	(vfloat16m4_t): Likewise.
+	(vfloat16m8_t): Likewise.
+	* config/riscv/vector-iterators.md: Add FP=16 to VWF, VWF_ZVE64,
+	VWLMUL1, VWLMUL1_ZVE64, vwlmul1 and vwlmul1_zve64.
+
+2023-06-06  Fei Gao  <gaofei@eswincomputing.com>
+
+	* config/riscv/riscv.cc (riscv_adjust_libcall_cfi_prologue): Use Pmode
+	for cfi reg/mem machmode
+	(riscv_adjust_libcall_cfi_epilogue): Use Pmode for cfi reg machmode
+
+2023-06-06  Li Xu  <xuli1@eswincomputing.com>
+
+	* config/riscv/vector-iterators.md:
+	Fix 'REQUIREMENT' for machine_mode 'MODE'.
+	* config/riscv/vector.md (@pred_indexed_<order>store<VNX16_QHS:mode>
+	<VNX16_QHSI:mode>): change VNX16_QHSI to VNX16_QHSDI.
+	(@pred_indexed_<order>store<VNX16_QHS:mode><VNX16_QHSDI:mode>): Ditto.
+
+2023-06-06  Pan Li  <pan2.li@intel.com>
+
+	* config/riscv/vector-iterators.md: Fix typo in mode attr.
+
 2023-06-05  Andre Vieira  <andre.simoesdiasvieira@arm.com>
 	    Joel Hutton  <joel.hutton@arm.com>
 
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 7e14e0ee146..2e61d1d960e 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20230606
+20230607
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 7e016811456..d02017c3c98 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,16 @@
+2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* c-parser.cc (c_parser_omp_clause_defaultmap,
+	c_parser_omp_clause_map): Parse 'present'.
+	(c_parser_omp_clause_to, c_parser_omp_clause_from): Remove.
+	(c_parser_omp_clause_from_to): New; parse to/from clauses with
+	optional present modifer.
+	(c_parser_omp_all_clauses): Update call.
+	(c_parser_omp_target_data, c_parser_omp_target_enter_data,
+	c_parser_omp_target_exit_data): Handle new map enum values
+	for 'present' mapping.
+
 2023-05-30  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR c/109999
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 7f57c1a3475..d00a2aa3e8d 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,16 @@
+2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* parser.cc (cp_parser_omp_clause_defaultmap,
+	cp_parser_omp_clause_map): Parse 'present'.
+	(cp_parser_omp_clause_from_to): New; parse to/from
+	clauses with optional 'present' modifier.
+	(cp_parser_omp_all_clauses): Update call.
+	(cp_parser_omp_target_data, cp_parser_omp_target_enter_data,
+	cp_parser_omp_target_exit_data): Handle new enum value for
+	'present' mapping.
+	* semantics.cc (finish_omp_target): Likewise.
+
 2023-06-04  Jason Merrill  <jason@redhat.com>
 
 	PR c++/97720
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index ea22bff0eca..26df2f561c1 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,23 @@
+2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* dump-parse-tree.cc (show_omp_namelist): Display 'present' map
+	modifier.
+	(show_omp_clauses): Display 'present' motion modifier for 'to'
+	and 'from' clauses.
+	* gfortran.h (enum gfc_omp_map_op): Add entries with 'present'
+	modifiers.
+	(struct gfc_omp_namelist): Add 'present_modifer'.
+	* openmp.cc (gfc_match_motion_var_list): New, handles optional
+	'present' modifier for to/from clauses.
+	(gfc_match_omp_clauses): Call it for to/from clauses; parse 'present'
+	in defaultmap and map clauses.
+	(resolve_omp_clauses): Allow 'present' modifiers on 'target',
+	'target data', 'target enter' and 'target exit'	directives.
+	* trans-openmp.cc (gfc_trans_omp_clauses): Apply 'present' modifiers
+	to tree node for 'map', 'to' and 'from'	clauses.  Apply 'present' for
+	defaultmap.
+
 2023-06-02  Steve Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/100607
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 326aede9fcc..f782b56a46c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,62 @@
+2023-06-06  Juzhe-Zhong  <juzhe.zhong@rivai.ai>
+
+	* gcc.target/riscv/rvv/autovec/widen/widen-8.c: New test.
+	* gcc.target/riscv/rvv/autovec/widen/widen-9.c: New test.
+	* gcc.target/riscv/rvv/autovec/widen/widen-complicate-5.c: New test.
+	* gcc.target/riscv/rvv/autovec/widen/widen-complicate-6.c: New test.
+	* gcc.target/riscv/rvv/autovec/widen/widen_run-8.c: New test.
+	* gcc.target/riscv/rvv/autovec/widen/widen_run-9.c: New test.
+
+2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* c-c++-common/gomp/map-6.c: Update dg-error, extend to test for
+	duplicated 'present' and extend scan-dump tests for 'present'.
+	* gfortran.dg/gomp/defaultmap-1.f90: Update dg-error.
+	* gfortran.dg/gomp/map-7.f90: Extend parse and dump test for
+	'present'.
+	* gfortran.dg/gomp/map-8.f90: Extend for duplicate 'present'
+	modifier checking.
+	* c-c++-common/gomp/defaultmap-4.c: New test.
+	* c-c++-common/gomp/map-9.c: New test.
+	* c-c++-common/gomp/target-update-1.c: New test.
+	* gfortran.dg/gomp/defaultmap-8.f90: New test.
+	* gfortran.dg/gomp/map-11.f90: New test.
+	* gfortran.dg/gomp/map-12.f90: New test.
+	* gfortran.dg/gomp/target-update-1.f90: New test.
+
+2023-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* gcc.target/aarch64/simd/vrshr_1.c: New test.
+
+2023-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* gcc.target/aarch64/simd/pr99195_5.c: Add testing for shrn_n, rshrn_n
+	intrinsics.
+
+2023-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* gcc.target/aarch64/simd/addlv_1.c: New test.
+
+2023-06-06  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/110055
+	* g++.dg/warn/Wdangling-pointer-pr110055.C: New testcase.
+
+2023-06-06  Fei Gao  <gaofei@eswincomputing.com>
+
+	* gcc.target/riscv/save-restore-cfi.c: New test to check save-restore
+	cfi directives.
+
+2023-06-06  Pan Li  <pan2.li@intel.com>
+
+	* gcc.target/riscv/rvv/base/zvfh-intrinsic.c: Add new test cases.
+
+2023-06-06  Fei Gao  <gaofei@eswincomputing.com>
+
+	* gcc.target/riscv/save-restore-cfi-2.c: New test to check machmode
+	for cfi reg/mem.
+
 2023-06-05  Andre Vieira  <andre.simoesdiasvieira@arm.com>
 	    Joel Hutton  <joel.hutton@arm.com>
 	    Tamar Christina  <tamar.christina@arm.com>
diff --git a/include/ChangeLog b/include/ChangeLog
index 52b3159c999..7ddfaeb7985 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,17 @@
+2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* gomp-constants.h (GOMP_MAP_FLAG_SPECIAL_5): New.
+	(GOMP_MAP_FLAG_FORCE): Redefine.
+	(GOMP_MAP_FLAG_PRESENT, GOMP_MAP_FLAG_ALWAYS_PRESENT): New.
+	(enum gomp_map_kind): Add map kinds with 'present' modifiers.
+	(GOMP_MAP_COPY_TO_P, GOMP_MAP_COPY_FROM_P): Evaluate to true for
+	map variants with 'present'
+	(GOMP_MAP_ALWAYS_TO_P, GOMP_MAP_ALWAYS_FROM_P): Evaluate to true
+	for map variants with 'always, present' modifiers.
+	(GOMP_MAP_ALWAYS): Redefine.
+	(GOMP_MAP_FORCE_P, GOMP_MAP_PRESENT_P): New.
+
 2023-05-11  Joseph Myers  <joseph@codesourcery.com>
 
 	PR middle-end/109128
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 9f48bebcc93..f924aeea5c0 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,27 @@
+2023-06-06  Tobias Burnus  <tobias@codesourcery.com>
+
+	* plugin/plugin-gcn.c (GOMP_OFFLOAD_get_num_devices): Regard
+	unified_address requirement as supported.
+	* libgomp.texi (OpenMP 5.0, AMD Radeon, nvptx): Remove
+	'unified_address' from the not-supported requirements.
+
+2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* libgomp.texi (OpenMP 5.1 Impl. status): Set 'present' support for
+	defaultmap to 'Y', add 'Y' entry for 'present' on to/from/map clauses.
+	* target.c (gomp_to_device_kind_p): Add map kinds with 'present'
+	modifier.
+	(gomp_map_vars_existing): Use new GOMP_MAP_FORCE_P macro.
+	(gomp_map_vars_internal, gomp_update, gomp_target_rev):
+	Emit runtime error if memory region not present.
+	* testsuite/libgomp.c-c++-common/target-present-1.c: New test.
+	* testsuite/libgomp.c-c++-common/target-present-2.c: New test.
+	* testsuite/libgomp.c-c++-common/target-present-3.c: New test.
+	* testsuite/libgomp.fortran/target-present-1.f90: New test.
+	* testsuite/libgomp.fortran/target-present-2.f90: New test.
+	* testsuite/libgomp.fortran/target-present-3.f90: New test.
+
 2023-06-02  Thomas Schwinge  <thomas@codesourcery.com>
 
 	PR testsuite/66005
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index d362426c1bd..59d7b5874f8 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2023-06-06  Costas Argyris  <costas.argyris@gmail.com>
+
+	* argv.c (writeargv): Simplify & remove gotos.
+
 2023-06-05  Costas Argyris  <costas.argyris@gmail.com>
 
 	* pex-win32.c: fix typos.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 31c1704aaee..aa14d62c5c0 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,92 @@
+2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/util/testsuite_abi.cc (check_version): Add
+	CXXABI_1.3.15 symver and make it the latestp. Remove
+	GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
+
+2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
+	    Jakub Jelinek  <jakub@redhat.com>
+
+	PR libstdc++/104772
+	* include/std/limits: (numeric_limits<__float128>): Define
+	for __STRICT_ANSI__ as well.
+	* testsuite/18_support/numeric_limits/128bit.cc: Remove
+	check for __STRICT_ANSI__.
+
+2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
+
+	* configure.ac: Use AS_IF.
+	* configure: Regenerate.
+
+2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
+
+	PR libstdc++/109822
+	* include/experimental/bits/simd_builtin.h (_S_store): Rewrite
+	to avoid casts to other vector types. Implement store as
+	succession of power-of-2 sized memcpy to avoid PR90424.
+
+2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
+
+	PR libstdc++/110054
+	* include/experimental/bits/simd_builtin.h (_S_masked_store):
+	Call into deduced ABI's SimdImpl after conversion.
+	* include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
+	Don't use _mm_maskmoveu_si128. Use the generic fall-back
+	implementation. Also fix masked stores without SSE2, which
+	were not doing anything before.
+
+2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
+
+	* include/experimental/bits/simd.h (__bit_cast): Use
+	__gnu__::__vector_size__ instead of gnu::vector_size.
+
+2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/110139
+	* include/std/array (__array_traits<T, 0>::operator T*()): Make
+	conversion operator explicit.
+	(array::front): Use size_type as subscript operand.
+	(array::data): Use static_cast to make conversion explicit.
+	* testsuite/23_containers/array/element_access/110139.cc: New
+	test.
+
+2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
+
+	* include/bits/locale_classes.tcc: Remove check for
+	codecvt<char8_t, char, mbstate_t> facet.
+
+2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
+
+	* src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
+	close-on-exec flag on file descriptors.
+
+2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/108178
+	* src/filesystem/ops-common.h (do_copy_file): Check for empty
+	files by trying to read a character.
+	* testsuite/27_io/filesystem/operations/copy_file_108178.cc:
+	New test.
+
+2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
+
+	* acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
+	* config.h.in: Regenerate.
+	* configure: Regenerate.
+	* src/filesystem/ops-common.h (copy_file_copy_file_range):
+	Define new function.
+	(do_copy_file): Use it.
+
+2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
+
+	* acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
+	* config.h.in: Regenerate.
+	* configure: Regenerate.
+	* src/filesystem/ops-common.h (copy_file_sendfile): Define new
+	function for sendfile logic. Loop to support large files. Skip
+	zero-length files.
+	(do_copy_file): Use it.
+
 2023-06-04  Jason Merrill  <jason@redhat.com>
 
 	PR c++/97720