https://gcc.gnu.org/g:1f7e64d56bce2c51bbc093a3dfb1778eaddf12ee

commit r16-6673-g1f7e64d56bce2c51bbc093a3dfb1778eaddf12ee
Author: GCC Administrator <[email protected]>
Date:   Sat Jan 10 00:16:49 2026 +0000

    Daily bump.

Diff:
---
 ChangeLog               |  22 ++
 contrib/ChangeLog       |  12 +
 fixincludes/ChangeLog   |   4 +
 gcc/ChangeLog           | 473 +++++++++++++++++++++++++++++++++++
 gcc/DATESTAMP           |   2 +-
 gcc/ada/ChangeLog       | 643 ++++++++++++++++++++++++++++++++++++++++++++++++
 gcc/algol68/ChangeLog   |   4 +
 gcc/analyzer/ChangeLog  |  39 +++
 gcc/c/ChangeLog         |  16 ++
 gcc/cp/ChangeLog        |  12 +
 gcc/fortran/ChangeLog   |  24 ++
 gcc/testsuite/ChangeLog | 183 ++++++++++++++
 gnattools/ChangeLog     |   8 +
 libcpp/ChangeLog        |   5 +
 libdecnumber/ChangeLog  |   5 +
 libgfortran/ChangeLog   |  21 ++
 libiberty/ChangeLog     |   4 +
 libstdc++-v3/ChangeLog  |  49 ++++
 18 files changed, 1525 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 6c8d00a87964..770fa7b73337 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,25 @@
+2026-01-09  Ben Boeckel  <[email protected]>
+
+       * config-ml.in: Replace gcc-bugs@ with bug reporting link.
+       * symlink-tree: Replace gcc-bugs@ with bug reporting link.
+
+2026-01-08  Aleksandar Rakic  <[email protected]>
+
+       * config-ml.in: Use with_multi_buildlist to build multidirs.
+       Skip configuration for subdir returned by
+       --print-multi-directory.
+       * configure: Regenerate.
+       * configure.ac: Source target-specific configuration fragment
+       for GCC. Pass through with_multi_buildlist to host and target.
+
+2026-01-08  Karl Meakin  <[email protected]>
+
+       * MAINTAINERS: Add myself to write after approval.
+
+2026-01-08  Pietro Monteiro  <[email protected]>
+
+       * .forgejo/workflows/build-containers.yaml: New file.
+
 2026-01-06  Andrew Pinski  <[email protected]>
 
        * MAINTAINERS: Add myself as global reviewer.
diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 2a4218476cc5..80469807be29 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,15 @@
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       * update-copyright.py (GCCFilter): Don't filter out
+       gen-evolution.awk and gen-cxxapi-file.py.
+
+2026-01-08  Pietro Monteiro  <[email protected]>
+
+       * ci-containers/README: New file.
+       * ci-containers/autoregen/Containerfile: New file.
+       * ci-containers/autoregen/autoregen.py: New file.
+       * ci-containers/build-image.sh: New file.
+
 2026-01-02  Jakub Jelinek  <[email protected]>
 
        * update-copyright.py (LibPhobosFilter): Ignore also
diff --git a/fixincludes/ChangeLog b/fixincludes/ChangeLog
index 11dc84283318..58542d099b94 100644
--- a/fixincludes/ChangeLog
+++ b/fixincludes/ChangeLog
@@ -1,3 +1,7 @@
+2026-01-09  Ben Boeckel  <[email protected]>
+
+       * README: Replace gcc-bugs@ with bug reporting link.
+
 2026-01-07  Rainer Orth  <[email protected]>
 
        * inclhack.def (AAB_solaris_sys_varargs_h): Remove.
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 42237553de93..066c470e49dc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,476 @@
+2026-01-09  Robin Dapp  <[email protected]>
+
+       PR tree-optimization/123414
+       * tree-ssa-forwprop.cc (simplify_vector_constructor):
+       Use ssizetype as mask type.
+
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       * config/loongarch/genopts/gen-evolution.awk: Update
+       copyright year.
+       (copyright_header): Separate parts of Copyright word
+       with " " so that it doesn't get matched by update-copyright.py.
+       (gen_full_header, gen_full_source, gen_full_def): Include
+       2026 year in the ranges.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * channels.h (gcc::topics::analyzer_events::subscriber): New
+       forward decl.
+       (compiler_channels::analyzer_events_channel): New field.
+       * doc/plugins.texi (PLUGIN_ANALYZER_INIT): Delete.
+       * plugin.cc (register_callback): Delete PLUGIN_ANALYZER_INIT.
+       (invoke_plugin_callbacks_full): Likewise.
+       * plugin.def (PLUGIN_ANALYZER_INIT): Delete this event.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * Makefile.in (OBJS): Add tree-diagnostic-cfg.o.
+       (OBJS-libcommon): Add custom-sarif-properties/cfg.o,
+       diagnostics/digraphs-to-dot.o, and
+       diagnostics/digraphs-to-dot-from-cfg.o.
+       * cfghooks.cc: Define INCLUDE_VECTOR.  Add includes of
+       "diagnostics/sarif-sink.h" and "custom-sarif-properties/cfg.h".
+       (dump_bb_as_sarif_properties): New.
+       * cfghooks.h (diagnostics::sarif_builder): New forward decl.
+       (json::object): New forward decl.
+       (cfg_hooks::dump_bb_as_sarif_properties): New callback field.
+       (dump_bb_as_sarif_properties): New decl.
+       * cfgrtl.cc (rtl_cfg_hooks): Populate the new callback
+       field with rtl_dump_bb_as_sarif_properties.
+       (cfg_layout_rtl_cfg_hooks): Likewise.
+       * custom-sarif-properties/cfg.cc: New file.
+       * custom-sarif-properties/cfg.h: New file.
+       * diagnostics/digraphs-to-dot-from-cfg.cc: New file, partly
+       adapted from gcc/graph.cc.
+       * diagnostics/digraphs-to-dot.cc: New file.
+       * diagnostics/digraphs-to-dot.h: New file, based on material in...
+       * diagnostics/digraphs.cc: Include
+       "diagnostics/digraphs-to-dot.h".
+       (class conversion_to_dot): Rework and move to above.
+       (make_dot_graph_from_diagnostic_graph): Likewise.
+       (make_dot_node_from_digraph_node): Likewise.
+       (make_dot_edge_from_digraph_edge): Likewise.
+       (conversion_to_dot::get_dot_id_for_node): Likewise.
+       (conversion_to_dot::has_edges_p): Likewise.
+       (digraph::make_dot_graph): Use to_dot::converter::make and invoke
+       the result to make the dot graph.
+       * diagnostics/digraphs.h (digraph:get_all_nodes): New accessor.
+       * diagnostics/html-sink.cc
+       (html_builder::m_per_logical_loc_graphs): New field.
+       (html_builder::add_graph_for_logical_loc): New.
+       (html_sink::report_digraph_for_logical_location): New.
+       * diagnostics/sarif-sink.cc (sarif_array_of_unique::get_element):
+       New.
+       (sarif_builder::report_digraph_for_logical_location): New.
+       (sarif_sink::report_digraph_for_logical_location): New.
+       * diagnostics/sink.h: Include "diagnostics/logical-locations.h".
+       (sink::report_digraph_for_logical_location): New vfunc.
+       * diagnostics/text-sink.h
+       (text_sink::report_digraph_for_logical_location): New.
+       * doc/invoke.texi (fdiagnostics-add-output): Clarify wording.
+       Distinguish between scheme-specific vs GCC-specific keys, and add
+       "cfgs" as the first example of the latter.
+       * gimple-pretty-print.cc: Include "cfghooks.h", "json.h", and
+       "custom-sarif-properties/cfg.h".
+       (gimple_dump_bb_as_sarif_properties): New.
+       * gimple-pretty-print.h (diagnostics::sarif_builder): New forward
+       decl.
+       (json::object): Likewise.
+       (gimple_dump_bb_as_sarif_properties): New.
+       * graphviz.cc (get_compass_pt_from_string): New
+       * graphviz.h (get_compass_pt_from_string): New decl.
+       * libsarifreplay.cc (sarif_replayer::handle_graph_object): Fix
+       overlong line.
+       * opts-common.cc: Define INCLUDE_VECTOR.
+       * opts-diagnostic.cc: Define INCLUDE_LIST.  Include
+       "diagnostics/sarif-sink.h", "tree-diagnostic-sink-extensions.h",
+       "opts-diagnostic.h", and "pub-sub.h".
+       (class gcc_extra_keys): New class.
+       (opt_spec_context::opt_spec_context): Add "client_keys" param and
+       pass to dc_spec_context.
+       (handle_gcc_specific_keys): New.
+       (try_to_make_sink): New.
+       (gcc_extension_factory::singleton): New.
+       (handle_OPT_fdiagnostics_add_output_): Rework to use
+       try_to_make_sink.
+       (handle_OPT_fdiagnostics_set_output_): Likewise.
+       * opts-diagnostic.h: Include "diagnostics/sink.h".
+       (class gcc_extension_factory): New.
+       * opts.cc: Define INCLUDE_LIST.
+       * print-rtl.cc: Include "dumpfile.h", "cfghooks.h", "json.h", and
+       "custom-sarif-properties/cfg.h".
+       (rtl_dump_bb_as_sarif_properties): New.
+       * print-rtl.h (diagnostics::sarif_builder): New forward decl.
+       (json::object): Likewise.
+       (rtl_dump_bb_as_sarif_properties): New decl.
+       * tree-cfg.cc (gimple_cfg_hooks): Use
+       gimple_dump_bb_as_sarif_properties for new callback field.
+       * tree-diagnostic-cfg.cc: New file, based on material in graph.cc.
+       * tree-diagnostic-sink-extensions.h: New file.
+       * tree-diagnostic.cc: Define INCLUDE_LIST.  Include
+       "tree-diagnostic-sink-extensions.h".
+       (compiler_ext_factory): New.
+       (tree_diagnostics_defaults): Set gcc_extension_factory::singleton
+       to be compiler_ext_factory.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * channels.h: New file.
+       * context.cc: Define INCLUDE_LIST.  Include "channels.h".
+       (gcc::context::context): Create m_channels.
+       (gcc::context::~context): Delete it.
+       * context.h (struct compiler_channels): New forward decl.
+       (gcc::context::get_channels): New accessor.
+       (gcc::context::m_channels): New field.
+       * passes.cc: Define INCLUDE_LIST.  Include "topics/pass-events.h"
+       and "channels.h".
+       (execute_one_pass): If the global context's pass_events_channel
+       has subscribers, publish before_pass and after_pass events to it.
+       * topics/pass-events.h: New file.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * Makefile.in (OBJS-libcommon): Add pub-sub.o.
+       * pub-sub.cc: New file.
+       * pub-sub.h: New file.
+       * selftest-run-tests.cc (selftest::run_tests): Call
+       selftest::pub_sub_cc_tests.
+       * selftest.h (selftest::pub_sub_cc_tests): New decl.
+
+2026-01-09  Andrew Pinski  <[email protected]>
+
+       PR target/123457
+       * config/aarch64/aarch64-sve-builtins.cc (struct 
registered_function_hasher):
+       Change base class to ggc_ptr_hash.
+       (initial_indexes): Mark with GTY.
+       (function_table): Likewise.
+       (handle_arm_sve_h): Allocate function_table from ggc instead of heap.
+
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       * doc/invoke.texi (-x): Add c++-system-module, objc-cpp-output,
+       objc++-cpp-output, adascil, adawhy, modula-2, modula-2-cpp-output,
+       rust, algol68 and lto as further possible option arguments.
+
+2026-01-09  Vladimir N. Makarov  <[email protected]>
+
+       PR rtl-optimization/123121
+       * lra-remat.cc (bad_for_rematerialization_p): Consider div/mod ops.
+       (operand_to_remat): Exclude rematerialization of insns with
+       multiple sets.
+
+2026-01-09  Peter Bergner  <[email protected]>
+
+       PR target/123492
+       * config/riscv/riscv-cores.def (RISCV_CORE)<tt-ascalon-d8>: Add missing
+       extensions via use of rva23s64 profile and adding zkr, smaia, smmpm,
+       smnpm, smrnmi, smstateen, ssaia, ssstrict, svadu.
+
+2026-01-09  Martin Jambor  <[email protected]>
+
+       * ipa-cp.h (class ipcp_bits_lattice): New members set_recipient_only,
+       recipient_only_p and m_recipient_only.
+       (class ipcp_vr_lattice): Likewise.
+       (ipcp_vr_lattice::init): Initialize also m_recipient_only.
+       * ipa-cp.cc (ipcp_bits_lattice::print): Adjust printting to also
+       print the new flag.
+       (ipcp_vr_lattice::print): Likewise.
+       (ipcp_vr_lattice::set_recipient_only): New function.
+       (ipcp_bits_lattice::set_recipient_only): Likewise.
+       (set_all_contains_variable): New parameter MAKE_SIMPLE_RECIPIENTS, set
+       bits and vr lattices to recibient only insted to bottom when it is
+       true.
+       (initialize_node_lattices): Pass true to the second parameter of
+       set_all_contains_variable.
+       (propagate_bits_across_jump_function): Treat recipient_only source
+       lattices like bottom.
+       (propagate_vr_across_jump_function): Likewise.
+       (ipcp_store_vr_results): Skip non-local nodes.
+
+2026-01-09  Martin Jambor  <[email protected]>
+
+       * ipa-cp.cc (good_cloning_opportunity_p): Dump a message when
+       bailing out early too.
+       (find_more_scalar_values_for_callers_subset): Rename to
+       find_scalar_values_for_callers_subset, collect constants regardless of
+       what is already in the vector.  Remove dumping.
+       (find_more_contexts_for_caller_subset): Rename to
+       find_contexts_for_caller_subset, collect contexts regardless of what
+       is already in the vector.  Remove dumping.
+       (find_aggregate_values_for_callers_subset): Rename to
+       find_aggregate_values_for_callers_subset_gc, implement using new
+       functions.
+       (find_aggregate_values_for_callers_subset_1): New function.
+       (find_aggregate_values_for_callers_subset): Likewise.
+       (copy_known_vectors_add_val): Removed.
+       (dump_reestimation_message): New function.
+       (decide_about_value): Remove formal parameter avals, compute it
+       independently, and use it to estimate local cloning effects.
+       (struct cloning_opportunity_ranking): New type.
+       (compare_cloning_opportunities): New function.
+       (cloning_opportunity_ranking_evaluation): Likewise.
+       (decide_whether_version_node): Pre-sort candidates for cloning before
+       really evaluating them.  Calculate context independent values only
+       when considering versioning for all contexts.
+       (ipcp_val_agg_replacement_ok_p): Renamed to
+       ipcp_val_replacement_ok_p, check also non-aggregate values.
+
+2026-01-09  Alexandre Oliva  <[email protected]>
+
+       PR target/119430
+       * config/arm/arm.cc (arm_function_ok_for_sibcall): Disable
+       sibcalls for long-calls that use all call-clobbered
+       general-purpose registers, including the static chain.
+
+2026-01-09  Stefan Schulze Frielinghaus  <[email protected]>
+
+       * config/s390/s390.cc (print_operand): Align %cN with %N.
+       * config/s390/s390.md: Remove comment.
+
+2026-01-09  Filip Kastl  <[email protected]>
+
+       PR c/123212
+       * opts.cc: Enable -fbit-tests and -fjump-tables at -Og.
+
+2026-01-09  Alfie Richards  <[email protected]>
+
+       * config/aarch64/aarch64-builtins.cc
+       (aarch64_expand_pragma_builtin): Add case for FMMLA.
+       * config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins):
+       Add new __ARM_FEATURE_X macros.
+       * config/aarch64/aarch64-simd-pragma-builtins.def
+       (vmmlaq_f16_mf8): New intrinsic.
+       (vmmlaq_f32_mf8): Likewise.
+       * config/aarch64/aarch64-simd.md
+       (@aarch64_<insn><VDQ_HSF_FMMLA:mode>): New instruction.
+       * config/aarch64/aarch64-sve-builtins-base.cc: Update mmla_impl
+       for new instructions.
+       * config/aarch64/aarch64-sve-builtins-shapes.cc
+       (struct mmla_def): Add support for the new widening forms.
+       * config/aarch64/aarch64-sve-builtins-sve2.def (svmmla) Add new
+       intrinsics.
+       * config/aarch64/aarch64-sve-builtins.cc (TYPES_cvt_narrow_s):
+       Fix comment.
+       * config/aarch64/aarch64-sve2.md
+       
(@aarch64_sve2_<sve_fp_op><SVE_FULL_HSF_FMMLA:mode><VNx16QI_ONLY:mode>): New 
instruction.
+       (@aarch64_sve2_<sve_fp_op><VNx4SF_ONLY:mode><VNx8HF_ONLY:mode>): 
Likewise.
+       * config/aarch64/aarch64.h (TARGET_F8F32MM): New macro.
+       (TARGET_F8F16MM): Likewise.
+       (TARGET_SVE_F16F32MM): Likewise.
+       * config/aarch64/iterators.md (insn): Add fmmla entry.
+       (VDQ_HSF_FMMLA): New iterator.
+       (SVE_FULL_HSF_FMMLA): Likewise.
+
+2026-01-09  Christophe Lyon  <[email protected]>
+
+       * config/arm/arm-builtins.cc (arm_init_simd_builtin_types): Remove
+       TARGET_HAVE_MVE condition.
+       (class arm_target_switcher): New.
+       (arm_init_mve_builtins): Remove calls to
+       arm_init_simd_builtin_types and
+       arm_init_simd_builtin_scalar_types.  Switch to MVE isa flags.
+       (arm_init_neon_builtins): Remove calls to
+       arm_init_simd_builtin_types and
+       arm_init_simd_builtin_scalar_types.
+       (arm_need_mve_mode_regs): New.
+       (arm_need_neon_mode_regs): New.
+       (arm_target_switcher::arm_target_switcher): New.
+       (arm_target_switcher::~arm_target_switcher): New.
+       (arm_init_builtins): Call arm_init_simd_builtin_scalar_types and
+       arm_init_simd_builtin_types.  Always call arm_init_mve_builtins
+       and arm_init_neon_builtins.
+
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       PR target/123489
+       * config/i386/i386-builtin.def (__builtin_ia32_cvttsd2sis64_round,
+       __builtin_ia32_cvttsd2usis64_round, __builtin_ia32_cvttss2sis64_round,
+       __builtin_ia32_cvttss2usis64_round): Require OPTION_MASK_ISA_64BIT.
+
+2026-01-09  Andrew Pinski  <[email protected]>
+
+       PR rtl-optimization/123491
+       * ifcvt.cc (noce_try_cond_zero_arith): Reject non-scalar
+       integer modes for the inner mode of the subreg.
+
+2026-01-09  Shreya Munnangi  <[email protected]>
+           Jeff Law  <[email protected]>
+
+       PR target/121778
+       * match.pd: Add pattern to recognize rotate with one or more
+       bits flipped via xor.
+       * config/sh/sh.md (*rotcl); New variant which handles the output
+       we get after the match.pd change above.
+
+2026-01-09  Jeff Law  <[email protected]>
+
+       * config/riscv/andes-23-series.md: Clamp reservations to 7c.
+       * config/riscv/andes-25-series.md: Likewise.
+       * config/riscv/andes-45-series.md: Likewise.
+       * config/riscv/generic.md: Likewise.
+       * config/riscv/mips-p8700.md: Likewise.
+       * config/riscv/sifive-7.md: Likewise.
+       * config/riscv/spacemit-x60.md: Likewise.
+
+2026-01-09  Kugan Vivekanandarajah  <[email protected]>
+
+       PR gcov-profile/123019
+       * auto-profile.cc (auto_profile): Call execute_fixup_cfg.
+
+2026-01-09  Kugan Vivekanandarajah  <[email protected]>
+
+       PR ipa/123383
+       * cgraph.cc (cgraph_edge::get_next_speculative_id): Check
+       lto_stmt_uid in get_next_speculative_id.
+
+2026-01-08  Jakub Jelinek  <[email protected]>
+
+       PR middle-end/111817
+       * stmt.cc (parse_input_constraint): For matching construct, goto
+       before the loop without changing j instead of break.  Remove comment
+       about that problem.
+
+2026-01-08  Robin Dapp  <[email protected]>
+
+       PR target/122846
+       * config/riscv/riscv-opts.h (enum rvv_max_lmul_enum): Add
+       RVV_CONV_DYNAMIC.
+       (TARGET_MAX_LMUL): Ditto.
+       * config/riscv/riscv-string.cc (use_vector_stringop_p): Use
+       LMUL1 for RVV_CONV_DYNAMIC.
+       (expand_rawmemchr): Ditto.
+       (expand_strcmp): Ditto.
+       (check_vectorise_memory_operation): Ditto.
+       * config/riscv/riscv-vector-costs.cc (get_smallest_mode):
+       New function.
+       (compute_lmul_from_conversion_ratio): Calculate LMUL from
+       largest/smallest type.
+       (costs::has_unexpected_spills_p): Split.
+       (costs::compute_live_ranges_and_lmul): Compute smallest type and
+       call new function.
+       (costs::cleanup_live_range_data): New function.
+       (costs::compute_conversion_dynamic_lmul): New function.
+       (costs::record_potential_unexpected_spills): Use new function.
+       (costs::better_main_loop_than_p): Allow appropriate LMUL.
+       * config/riscv/riscv-vector-costs.h: Declare.
+       * config/riscv/riscv.opt: New option
+       -mrvv-max-lmul=conv-dynamic.
+
+2026-01-08  Qing Zhao  <[email protected]>
+
+       * doc/extend.texi: Update doc to support pointers inside structures.
+
+2026-01-08  Olivier Hainque  <[email protected]>
+           Alexandre Oliva  <[email protected]>
+
+       * config.gcc [x86_64-*-*]: Match *abi32 target, default to m32
+       abi.  Accept 32 or m32 for --with-abi.
+
+2026-01-08  Jonathan Wakely  <[email protected]>
+
+       * doc/invoke.texi (C++ Dialect Options): Fix typo in
+       documentation of -flang-info-module-cmi.
+
+2026-01-08  Aleksandar Rakic  <[email protected]>
+
+       * Makefile.in: Add with_multi_buildlist for multilib
+       configuration control. Pass an additional argument to
+       genmultilib indicating whether --with-multi-buildlist is set
+       (true or false). Use with_multi_buildlist to filter
+       multilib directories in fixinc_list.
+       * configure: Regenerate.
+       * configure.ac: Restrict the installed fixedincludes multilibs.
+       * configure.tgt: New file.
+       * doc/install.texi: Add --with-multi-buildlist configure option
+       for multilib filtering.
+       * genmultilib: Document the new eleventh argument indicating
+       whether --with-multi-buildlist configure option is set (true or
+       false). Update argument parsing to include this flag before
+       enable_multilib. Modify reuse rule validation:
+       - Keep the original error for reuse of nonexistent multilibs
+       when --with-multi-buildlist is not used.
+       - Suppress the error only when the new configure option is
+       active, allowing reuse rules to reference multilibs that are
+       intentionally excluded from the build.
+
+2026-01-08  Tomas Glozar  <[email protected]>
+
+       * config/ia64/ia64.cc (MAX_VECT_LEN): Set to 16 from 8.
+
+2026-01-08  Robin Dapp  <[email protected]>
+
+       PR target/123268
+       * gimple-match-exports.cc (convert_conditional_op): Check if
+       orig_op->type and type of else value match.
+
+2026-01-08  Richard Sandiford  <[email protected]>
+           Richard Biener  <[email protected]>
+
+       PR tree-optimization/122793
+       * tree-vect-slp.cc (vect_add_slp_permutation): Document the existing
+       identity_offset parameter.  Handle identities that take from the
+       second input rather than the first.
+
+2026-01-08  Richard Biener  <[email protected]>
+
+       PR tree-optimization/123310
+       * tree-ssa-sccvn.cc (vn_reference_lookup_3): Properly
+       test against unknown offset.
+
+2026-01-08  Richard Biener  <[email protected]>
+
+       PR tree-optimization/123298
+       * tree-ssa-alias.h (get_continuation_for_phi): Take a gphi *,
+       add is_backedge hook argument.
+       (walk_non_aliased_vuses): Add is_backedge hook argument.
+       * tree-ssa-alias.cc (maybe_skip_until): Adjust.
+       (get_continuation_for_phi): Use new hook to classify an
+       edge into the PHI as backedge.
+       (walk_non_aliased_vuses): Adjust.
+       * gimple-lower-bitint.cc (bitint_dom_walker::before_dom_children):
+       Likewise.
+       * ipa-prop.cc (determine_known_aggregate_parts): Likewise.
+       * tree-ssa-scopedtables.cc (avail_exprs_stack::lookup_avail_expr):
+       Likewise.
+       * tree-ssa-pre.cc (translate_vuse_through_block): Likewise.
+       * tree-ssa-sccvn.cc (vn_bb_to_rpo): Make BB to RPO order
+       mapping accessible from new hook.
+       (do_rpo_vn_1): Likewise.
+       (vn_is_backedge): New hook to classify edge.
+       (vn_reference_lookup_pieces): Adjust.
+       (vn_reference_lookup): Likewise.
+
+2026-01-08  Richard Biener  <[email protected]>
+
+       * tree-vect-stmts.cc (vectorizable_shift): Improve missing
+       optab or optab support messages.
+       (vectorizable_operation): Likewise.
+
+2026-01-08  Stefan Schulze Frielinghaus  <[email protected]>
+
+       * config/s390/s390.cc (s390_logical_operator_ok_p): Test for
+       volatile memory.
+       (s390_mem_constraint): Remove volatile condition.
+       * config/s390/s390.md (*andc_split_<mode>): Test for volatile
+       memory.
+
+2026-01-08  Richard Biener  <[email protected]>
+
+       PR middle-end/123107
+       * fold-const.cc (fold_binary_loc): Guard (v >> CST) == { 0, 0.. }
+       to v < { 0, 0.. } folding.
+
+2026-01-08  Andrew Pinski  <[email protected]>
+
+       PR tree-optimization/123382
+       * tree-if-conv.cc: Reject VEC_PERM_EXPR for factoring
+       if it is the mask and they are constant.
+
+2026-01-08  Andrew Pinski  <[email protected]>
+
+       * cse.cc (cse_find_path): Change follow_jumps to bool.
+
 2026-01-07  Tomas Glozar  <[email protected]>
 
        PR target/121535
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 0e4e9e58a14a..49c7b136770c 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20260108
+20260110
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index b1119719bd6e..d961c46b4ad5 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,646 @@
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * gcc-interface/trans.cc (gnat_to_gnu): Add comment explaining why
+       it is necessary to remove the padding for an object of a type with
+       self-referential size when it is not converted to the result type.
+       * gcc-interface/utils2.cc (build_binary_op) <MODIFY_EXPR>: For an
+       assignment between small padded objects of the same type with self-
+       referential size, and which have the same (constant) size, use the
+       padded view of the objects.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * gcc-interface/trans.cc (gnat_to_gnu): For the LHS of an assignment
+       or an actual parameter of a call, do not remove the padding even for
+       a type of self-referential size when the padded size is small enough
+       to be copied efficiently.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * sem_ch12.ads (Save_Global_References_In_Aspects): Move to...
+       * sem_ch12.adb (Save_Global_References_In_Aspects): Move to...
+       * contracts.adb (Save_Global_References_In_Contract): ...here.
+
+2026-01-09  Javier Miranda  <[email protected]>
+
+       * exp_ch3.adb (Expand_N_Object_Declaration): Remove previous patch
+       and place the call to the constructor into a compound statement
+       attached to the object; the compound statement will be moved to
+       the freezing actions of the object if the object has an address
+       clause.
+
+2026-01-09  Denis Mazzucato  <[email protected]>
+
+       * sem_ch13.adb (Check_Constructor_Initialization_Expression): The first
+       parameter of an implicit constructor comes from Specification, not
+       Corresponding_Spec.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * exp_ch4.adb (Expand_N_Type_Conversion): Restore Comes_From_Source
+       test on N itself instead of its parent node.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * accessibility.adb (Function_Call_Or_Allocator_Level): Return the
+       level of the subprogram in Ada 95 only in the case where the result
+       type is a return-by-reference type.
+
+2026-01-09  Steve Baird  <[email protected]>
+
+       * libgnat/a-cbinho.ads: add Warnings pragmas.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * accessibility.adb (Function_Call_Or_Allocator_Level): Adjust the
+       latest change to cope with _Wrapped_Statements functions.
+       * einfo.ads (Wrapped_Statements): Fix description.
+       * sem_util.adb (In_Return_Value): Fix typo in comment.
+
+2026-01-09  Javier Miranda  <[email protected]>
+
+       * checks.ads (Convert_From_Bignum): Add a new formal and update
+       documentation.
+       (Convert_To_Bignum): Update documentation.
+       * checks.adb (Is_Signed_Integer_Arithmetic_Op): Renamed as
+       Is_Overflow_Arithmetic_Op, and replace calls to function
+       Is_Signed_Integer_Type by calls to Has_Overflow_Operations.
+       (Apply_Arithmetic_Overflow_Minimized_Eliminated): Add support
+       for types with the Unsigned_Base_Range aspect.
+       (Apply_Divide_Checks): Replace calls to Is_Signed_Integer_Type
+       by calls to Has_Overflow_Operations.
+       (Compute_Range_For_Arithmetic_Op): Adjust comment.
+       (Convert_To_Bignum): Add support for types with the Unsigned_
+       Base_Range aspect.
+       (Convert_From_Bignum): Add support for result type with the
+       Unsigned_Base_Range aspect.
+       (Minimize_Eliminate_Overflows): Add support for types with the
+       Unsigned_Base_Range aspect.
+       * exp_ch4.adb (Minimized_Eliminated_Overflow_Check): Replace
+       call to Is_Signed_Integer_Type by call to Has_Overflow_Operations.
+       (Expand_Compare_Minimize_Eliminate_Overflow): Add support for types
+       with the Unsigned_Base_Range aspect.
+       (Expand_Membership_Minimize_Eliminate_Overflow): Ditto.
+       (Expand_N_Op_Expon): Ditto.
+       (Expand_Exponentiation): New subprogram.
+       * rtsfind.ads (RE_Id): Add RE_LLU_To_Bignum, RE_LLU_From_Bignum.
+       * libgnat/s-bignum.ads (LLU_To_Bignum): New subprogram.
+       (LLU_From_Bignum): New subprogram.
+       * libgnat/s-bignum.adb (LLU_To_Bignum): New subprogram.
+       (LLU_From_Bignum): New subprogram.
+       * libgnat/s-genbig.ads (From_Bignum): New overloaded functions
+       for Long_Long_Long_Unsigned and Long_Long_Unsigned types.
+       (To_Bignum): Ditto.
+       * libgnat/s-genbig.adb (From_Bignum): New overloaded functions
+       for Long_Long_Long_Unsigned and Long_Long_Unsigned types.
+       (To_Bignum): Ditto.
+       * libgnat/s-expuns.ads (Exp_Unsigned): Fix documentation.
+       * libgnat/s-expllu.ads (Exp_Long_Long_Unsigned): Ditto.
+       * libgnat/s-explllu.ads (Exp_Long_Long_Long_Unsigned): Add missing
+       documentation.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * accessibility.ads (Is_Special_Aliased_Formal_Access): Delete.
+       * accessibility.adb (Is_Special_Aliased_Formal_Access): Likewise.
+       (Accessibility_Level.Innermost_Master_Scope_Depth): Look for non-
+       package bodies and statements directly.
+       (Accessibility_Level.Function_Call_Or_Allocator_Level): For a
+       function call in a return context, return the extra level of the
+       master of the call only for dynamic checks.
+       (Accessibility_Level) <N_Defining_Identifier>: Always return the
+       library level for an explicitly aliased parameter in the context
+       of a return from the subprogram where it is declared.
+       * exp_ch4.adb (Expand_N_Allocator): Test manually whether the
+       context is a return statement instead of calling In_Return_Value.
+       (Expand_N_Type_Conversion): Do not apply accessibility checks to
+       actuals of a tagged type in a synthesized subprogram call.
+       * sem_attr.adb (Resolve_Attribute) <Access>: Remove specific test
+       for explicitly aliased parameters.
+       * sem_ch4.adb: Remove clauses for Accessibility package.
+       (Analyze_Call): Do not apply static accessibility checks here...
+       * sem_res.adb (Resolve_Actuals): ...but here instead.  Implement
+       a generalized form of AI12-0402.
+       (Valid_Conversion): Apply static accessibility checks in extended
+       return statements too.
+       * sem_util.ads (In_Return_Value): Adjust description.
+       (Is_Master): Delete.
+       * sem_util.adb (Is_Explicitly_Aliased): Reindent.
+       (In_Return_Value): Reimplement.
+       (Is_Master): Delete.
+
+2026-01-09  Viljar Indus  <[email protected]>
+           Eric Botcazou  <[email protected]>
+
+       * errout.adb (Insert): New function to create an insertion fix.
+       (Deletion): New function to create a deletion fix.
+       * errout.ads: Likewise.
+       * sem_warn.adb (Create_Add_Constant_Fix): New function to create
+       a fix for adding a constant qualifier for a variable declaration.
+       (Change_In_Out_To_In_Fix): New function to create a fix for
+       convertinting an in out parameter direction to a an in direction.
+
+2026-01-09  Tonu Naks  <[email protected]>
+
+       * doc/gnat_rm/implementation_of_ada_2022_features.rst: update
+       AI12-0350, add AI12-0254.
+       * gnat_rm.texi: Regenerate.
+       * gnat_ugn.texi: Regenerate.
+
+2026-01-09  Ronan Desplanques  <[email protected]>
+
+       * adaint.c (__gnat_set_thread_description): New function.
+       * libgnarl/s-taprop__mingw.adb (Enter_Task): Set thread description.
+       * rtinit.c (__gnat_runtime_initialize): Set up function pointer.
+       * mingw32.h (HRESULT, pSetThreadDescription): New.
+
+2026-01-09  Denis Mazzucato  <[email protected]>
+
+       * exp_ch3.adb (Build_Init_Procedure): Remove call to constructors.
+       (Build_Default_Simple_Initialization): Implicit call to parameterless 
constructors in new
+       allocations.
+       (Expand_Freeze_Record_Type): Freeze constructors as we would freeze 
predefined operations.
+       (Constructor_Freeze): Freeze all constructors.
+       * sem_attr.adb (Analyze_Attribute): Handle missing parameterless 
constructors.
+       * sem_ch3.adb: The default constructor is now called parameterless.
+       * sem_util.adb (Find_Matching_Constructor): Return the constructor
+       matching the given condition. Before it was just checking its
+       existence.
+       (Has_Copy_Constructor): Move it upward to maintain alphabetic
+       order of utility subprograms.
+       (Has_Parameterless_Constructor): The default constructor is now called 
parameterless.
+       (Has_Explicit_Constructor): New utility to check for constructors
+       defined by the user. Used to understand if an implicit
+       parameterless constructor exists.
+       (Is_Copy_Constructor): Refactor easier control flow.
+       (Is_Parameterless_Constructor): New utility to check if a constructor 
has a profile
+       compatible with the parameterless constructor.
+       * sem_util.ads: Likewise.
+
+2026-01-09  Viljar Indus  <[email protected]>
+
+       * errid-diagnostic_repository.ads: Update the diagnostic repository.
+       * errid-switch_repository.ads: Update the switch repository.
+       * errid.ads: Add new Diagnostic_Id-s.
+       * sem_warn.adb (Check_References): Add Diagnostic_Id-s for
+       error messages triggered by -gnatwk.
+
+2026-01-09  Viljar Indus  <[email protected]>
+
+       * errid.adb (Check_Diagnostic_To_Switch_Consistency): New subprogram
+       for checking the consistency of diagnostics.
+       (Check_Switch_To_Diagnostic_Consistency) New subprogram for checking
+       the consistency of switches.
+       (Add_All_Diagnostic_Rules): Check diagnostic consitency.
+       (Add_All_Switch_Rules): Check switch consitency.
+
+2026-01-09  Viljar Indus  <[email protected]>
+
+       * debug.adb: remove use case for -gnatd_E
+       * errout.adb (Output_Messages): remove printing of
+       the diagnostic repository when -gnatd_E is used.
+       * gnatcmd.adb: Add support for printing the diagnostic repository.
+
+2026-01-09  Viljar Indus  <[email protected]>
+
+       * errid-diagnostic_repository.ads: New package for storing
+       information about diagnostics.
+       * errid-switch_repository.adb: New package for storing
+       information about switches.
+       * errid-switch_repository.ads: Likewise.
+       * errid.adb: Move common methods related to Diagnostic_Id-s and
+       Switch_Id-s to this pacakge.
+       * errid.ads: Likewise.
+       * errout.adb (Add_Unique_Diagnostics_And_Switches): New method
+       for gathering all of the unique Diagnostic_Id-s and Switch_Id-s
+       among all of the error messages.
+       (Output_Messages): Use the new SARIF printer interface for printing
+       the report.
+       * erroutc-sarif_emitter.adb (Print_Relationship): New method for
+       printing relationship nodes.
+       (Print_Rule): Support printing switches as rules. Add support
+       for printing relationship nodes under rules. Remove brackets around
+       the rule name.
+       (Print_Runs): Add a printer argument to pass all of the switches
+       and diagnostics as rules in the SARIF report.
+       (Print_Tool): Likewise.
+       (Free): New method.
+       (Get_Unique_Rules): Removed.
+       (Print_Result): Remove brackets around the rule name.
+       (Print_Rules): Print switches as rules.
+       * erroutc-sarif_emitter.ads (SARIF_Printer): New record type for
+       storing and passing all of the diagnostic and switch information
+       around in the SARIF printer.
+       (Report_Kind): New type for indicating the different reports the
+       SARIF emitter can produce.
+       (Free): New method for releasing all of the dynamically allocated
+       memory.
+       (Print_SARIF_Report): Add a SARIF_Printer argument.
+       * erroutc.adb (Get_Human_Id): Removed.
+       (Get_Switch): Removed.
+       (Get_Doc_Switch): Simplify code.
+       * erroutc.ads: (Get_Human_Id): Removed.
+       (Get_Switch): Removed.
+       * errsw.adb: Replaced by errid-switch_repository.adb.
+       * errsw.ads: Replaced by errid-switch_repository.ads.
+       * errutil.adb: Remove dependecy to errsw pacakge.
+       * par-endh.adb: Fix whitespace.
+       * gcc-interface/Make-lang.in: Update the dependencies.
+       * gcc-interface/Makefile.in: Likewise.
+
+2026-01-09  Steve Baird  <[email protected]>
+
+       * doc/gnat_rm/implementation_defined_attributes.rst: Document the
+       From_Address attribute.
+       * exp_attr.adb (Expand_N_Attribute_Reference): Implement expansion
+       of a From_Address attribute reference.
+       * sem_attr.adb (Analyze_Attribute): Implement analysis of a
+       From_Address attribute reference.
+       (Eval_Attribute): A From_Address attribute reference cannot be
+       statically evaluated.
+       * snames.ads-tmpl: Declare Name_From_Address and Attribute_From_Address.
+       * gnat_rm.texi: Regenerate.
+       * gnat_ugn.texi: Regenerate.
+
+2026-01-09  Steve Baird  <[email protected]>
+
+       * sem_ch13.adb (Analyze_Aspect_Specifications): Add new legality
+       checks for Super and Initialize aspect specifications, implemented
+       by calling a new local procedure,
+       Check_Constructor_Initialization_Expression.
+
+2026-01-09  Steve Baird  <[email protected]>
+
+       * Makefile.rtl: add entry for new unit
+       * impunit.adb: add entry for new unit
+       * libgnat/a-cbinho.adb: new file with body for new unit
+       * libgnat/a-cbinho.ads: new file with spec for new unit
+       * libgnat/a-coboho.ads: add comment
+       * libgnat/a-undesu.ads: add Preelaborate aspect specification,
+       as per AI22-0050.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       PR ada/123003
+       * accessibility.adb: Remove unused clauses.
+       * aspects.adb: Likewise.
+       * checks.adb: Likewise.
+       * comperr.adb: Likewise.
+       * contracts.adb: Likewise.
+       * cstand.adb: Likewise.
+       * debug_a.adb: Likewise.
+       * errout.adb: Likewise.
+       * eval_fat.adb: Likewise.
+       * exp_aggr.adb: Likewise.
+       * exp_atag.adb: Likewise.
+       * exp_attr.adb: Likewise.
+       * exp_cg.adb: Likewise.
+       * exp_ch11.adb: Likewise.
+       * exp_ch12.adb: Likewise.
+       * exp_ch13.adb: Likewise.
+       * exp_ch2.adb: Likewise.
+       * exp_ch3.adb: Likewise.
+       * exp_ch4.adb: Likewise.
+       * exp_ch5.adb: Likewise.
+       * exp_ch6.adb: Likewise.
+       * exp_ch7.adb: Likewise.
+       * exp_ch8.adb: Likewise.
+       * exp_ch9.adb: Likewise.
+       * exp_code.adb: Likewise.
+       * exp_dbug.adb: Likewise.
+       * exp_disp.adb: Likewise.
+       * exp_dist.adb: Likewise.
+       * exp_fixd.adb: Likewise.
+       * exp_imgv.adb: Likewise.
+       * exp_intr.adb: Likewise.
+       * exp_pakd.adb: Likewise.
+       * exp_prag.adb: Likewise.
+       * exp_put_image.adb: Likewise.
+       * exp_sel.adb: Likewise.
+       * exp_smem.adb: Likewise.
+       * exp_spark.adb: Likewise.
+       * exp_strm.adb: Likewise.
+       * exp_tss.adb: Likewise.
+       * exp_unst.adb: Likewise.
+       * exp_util.adb: Likewise.
+       * exp_util.ads: Likewise.
+       * expander.adb: Likewise.
+       * freeze.adb: Likewise.
+       * frontend.adb: Likewise.
+       * ghost.adb: Likewise.
+       * gnat1drv.adb: Likewise.
+       * gnat_cuda.adb: Likewise.
+       * impunit.adb: Likewise.
+       * inline.adb: Likewise.
+       * itypes.adb: Likewise.
+       * itypes.ads: Likewise.
+       * layout.adb: Likewise.
+       * lib.adb: Likewise.
+       * libgnarl/s-tasuti.adb: Likewise.
+       * live.adb: Likewise.
+       * local_restrict.adb: Likewise.
+       * mutably_tagged.adb: Likewise.
+       * nlists.adb: Likewise.
+       * par.adb: Likewise.
+       * par_sco.adb: Likewise.
+       * pprint.adb: Likewise.
+       * repinfo.adb: Likewise.
+       * restrict.adb: Likewise.
+       * rtsfind.adb: Likewise.
+       * scil_ll.adb: Likewise.
+       * scn.adb: Likewise.
+       * sem.adb: Likewise.
+       * sem_aggr.adb: Likewise.
+       * sem_attr.adb: Likewise.
+       * sem_aux.adb: Likewise.
+       * sem_case.adb: Likewise.
+       * sem_cat.adb: Likewise.
+       * sem_ch10.adb: Likewise.
+       * sem_ch11.adb: Likewise.
+       * sem_ch12.adb: Likewise.
+       * sem_ch13.adb: Likewise.
+       * sem_ch2.adb: Likewise.
+       * sem_ch3.adb: Likewise.
+       * sem_ch4.adb: Likewise.
+       * sem_ch5.adb: Likewise.
+       * sem_ch6.adb: Likewise.
+       * sem_ch7.adb: Likewise.
+       * sem_ch9.adb: Likewise.
+       * sem_dim.adb: Likewise.
+       * sem_disp.adb: Likewise.
+       * sem_dist.adb: Likewise.
+       * sem_elab.adb: Likewise.
+       * sem_elim.adb: Likewise.
+       * sem_eval.adb: Likewise.
+       * sem_intr.adb: Likewise.
+       * sem_mech.adb: Likewise.
+       * sem_prag.adb: Likewise.
+       * sem_res.adb: Likewise.
+       * sem_scil.adb: Likewise.
+       * sem_smem.adb: Likewise.
+       * sem_type.adb: Likewise.
+       * sem_util.adb: Likewise.
+       * sem_util.ads: Likewise.
+       * sem_warn.adb: Likewise.
+       * sinput.adb: Likewise.
+       * sprint.adb: Likewise.
+       * strub.adb: Likewise.
+       * style.adb: Likewise.
+       * styleg.adb: Likewise.
+       * tbuild.adb: Likewise.
+       * tbuild.ads: Likewise.
+       * treepr.adb: Likewise.
+       * uname.adb: Likewise.
+       * sem_ch8.adb: Likewise.
+       (Mark_Use_Clauses.Mark_Use_Package): Do not recurse on the prefix
+       for a package given by an expanded name.
+
+2026-01-09  Bob Duff  <[email protected]>
+
+       * debug.adb: Remove doc for gnatd_X; no longer used.
+       * einfo.ads: Minor comment improvement.
+       * exp_ch3.adb: Minor reformatting.
+       * exp_ch6.adb (Check_BIP_Actuals): Export.
+       (Validate_Subprogram_Calls): Move to Vast.
+       * exp_ch6.ads (Check_BIP_Actuals): Export.
+       * exp_ch7.adb (Make_Init_Call): Remove obsolete Set_Assignment_OK.
+       * frontend.adb: Move Validate_Subprogram_Calls call to VAST,
+       as the comment suggested.
+       * par.adb: Minor comment improvements.
+       * par-ch13.adb (Get_Aspect_Specifications):
+       Misc cleanup, including removal of redundant setting
+       of Aspects, and changing multiple 'if's to 'case'.
+       * par-ch4.adb (P_Simple_Name_Resync): Do not refer to Token_Node
+       when it is documented as not defined.
+       * par-ch6.adb: Minor comment improvement.
+       * par-util.adb (Bad_Spelling_Of): After setting Token from
+       identifier to keyword, destroy Token_Node, so it doesn't get
+       accidentally used.
+       * scans.adb (Save_Scan_State, Restore_Scan_State):
+       Put these in logical order. Make sure we're not saving
+       and restoring bogus information in Token_Node.
+       * scans.ads: Fix incorrect comment.
+       * scn.ads: Minor comment improvements. Do not duplicate (wrong)
+       information from Scans.
+       * scng.adb: Set Token_Node to Empty initially, so we don't
+       accidentally refer to bogus information from previous tokens.
+       * scng.ads: Minor comment improvement (remove information
+       about one actual from comment on the formal).
+       * sem_aux.ads (Initialization_Suppressed):
+       Minor comment improvement.
+       * sem_ch6.adb: Remove usage of Debug_Flag_Underscore_XX.
+       This code is pretty well tested by now, and anyway, it's
+       only called from within pragmas Assert.
+       * sem_util.adb (Enter_Name): Minor cleanup.
+       * sprint.adb (Dump_Generated_Only): Fix incorrect comment.
+       * vast.adb: Misc cleanup. Enable assertion about
+       Errout.Compilation_Errors (should be False if back end
+       is enabled).
+       (Validate_Subprogram_Calls): Move here from frontend.adb.
+       Move call to it here from frontend.adb.
+
+2026-01-09  Gary Dismukes  <[email protected]>
+
+       * sem_ch4.adb (Try_Container_Indexing): Conditionalize last actual of
+       call to Error_Msg_NE to avoid blowup on N_Parameter_Association actuals.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * exp_attr.adb (Expand_Size_Attribute): If the attribute is applied
+       to a formal parameter allocated with an extra Constrained parameter,
+       use the value of the latter to choose between the "unconstrained" or
+       the "constrained" size of the formal parameter.
+
+2026-01-09  Javier Miranda  <[email protected]>
+
+       * exp_ch4.adb (Expand_Composite_Equality): Under Ada83 and Ada95
+       modes, and compiling under -gnatw_q, search for an user-defined
+       equality and report a warning if found since it will not be called.
+
+2026-01-09  Piotr Trojanek  <[email protected]>
+
+       * libgnat/system-mingw.ads (Underlying_Priorities): Restore previous
+       mapping with distinct values around Default_Priority.
+
+2026-01-09  Denis Mazzucato  <[email protected]>
+
+       * exp_attr.adb (Expand_N_Attribute_Reference): Do not expand copy
+       constructor calls when unnecessary.
+       * exp_ch3.adb
+       (Build_Implicit_Copy_Constructor): If necessary, build the implicit copy
+       constructor as part of the initialization procedures of its type.
+       (Expand_N_Object_Declaration): Add implicit 'Make attribute calls for
+       objects that may need construction.
+       * exp_ch6.adb (Make_Parent_Constructor_Call): Constructor's procedure
+       calls should be only generated from expansion of the 'Make attribute as
+       there is hidden logic to handle copy constructors.
+       * sem_attr.adb (Analyze_Attribute): Emit a specific error message if a
+       non-copy constructor is called but no constructor is defined.
+       * sem_ch13.adb (Analyze_Aspect_Specifications): The Ekind of the
+       implicitly generated copy constructor is not a subprogram body.
+       * sem_ch4.adb (Extended_Primitive_Ops): Extend the operation list that
+       can be called via prefix notation to include constructors.
+       * sem_ch6.adb (Check_For_Primitive_Subprogram): Skip constructors for
+       primitive analysis.
+       * sem_util.adb (Has_Matching_Constructor): Generic function to
+       check for the existence of a constructor matching a given
+       condition.
+       (Has_Copy_Constructor): Check whether a type has an implicit or explicit
+       copy constructor.
+       (Has_Default_Constructor): Use Has_Matching_Constructor.
+       (Is_Copy_Constructor): Check whether a subprogram is a copy constructor.
+       (Is_Copy_Constructor_Call): Check whether an attribute call is call to a
+       copy constructor.
+       * sem_util.ads: Add specs for copy constructor utility functions.
+       * snames.ads-tmpl (Snames): Add names Self and From.
+
+2026-01-09  Martin Clochard  <[email protected]>
+
+       * exp_attr.adb (Expand_N_Attribute_Reference): For Old attribute,
+       detect the anonymous access type case explicitly instead of
+       implicitly within in Eligible_For_Conditional_Evaluation.
+       * sem_util.ads: (Eligible_For_Conditional_Evaluation): Do not
+       return True on anonymous access types. This was also breaking usage
+       outside expansion (legality checks for Old).
+       * sem_util.adb: (Conditional_Evaluation_Condition): Special case
+       of no determiners for anonymous access types is no longer possible.
+
+2026-01-09  Ronan Desplanques  <[email protected]>
+
+       * snames.ads-tmpl: Make "Destructor" an attribute name.
+       * snames.adb-tmpl: Allow direct attribute definition for Destructor.
+       * gen_il-fields.ads (Destructor): New field.
+       (Is_Destructor): Remove.
+       * gen_il-gen-gen_entities.adb: (Destructor): New field.
+       (Is_Destructor): Remove.
+       * einfo.ads (Destructor): Document new field.
+       (Is_Destructor): Remove documentation.
+       * aspects.ads (Aspect_Destructor): Remove.
+       * exp_attr.adb (Expand_N_Attribute_Reference): Adapt after aspect
+       removal.
+       * exp_ch7.adb (Build_Finalize_Statements): Adapt to new destructor
+       representation.
+       * freeze.adb (Freeze_Entity): Remove obsolete check.
+       * sem_attr.adb (Analyze_Attribute, Eval_Attribute): Adapt to new
+       attribute.
+       * sem_ch13.adb (Analyze_Aspect_Specifications,
+       Check_Aspect_At_End_Of_Declarations): Adapt after aspect removal.
+       * sem_ch6.adb (Analyze_Direct_Attribute_Definition): Add handling
+       of Destructor attribute.
+       (Can_Be_Destructor_Of): New function.
+       * doc/gnat_rm/gnat_language_extensions.rst: Adapt documentation to
+       new syntax.
+       * gnat_rm.texi: Regenerate.
+       * gnat_ugn.texi: Regenerate.
+
+2026-01-09  Tom Tromey  <[email protected]>
+
+       * doc/gnat_ugn/building_executable_programs_with_gnat.rst
+       (GNATLLVM): Update debugging documentation.
+       * gnat_ugn.texi: Regenerate.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * exp_util.ads (Find_Hook_Context): Rename to...
+       (Find_Master_Context): ...this and alphabetize.
+       * exp_util.adb (Find_Master_Context): Rename to...
+       (Find_Master_Context): ...this and alphabetize.
+       * exp_ch4.adb (Insert_Conditional_Object_Declaration): Adjust to
+       above renaming.
+       (Process_Transients_In_Expression): Likewise.
+
+2026-01-09  Ronan Desplanques  <[email protected]>
+
+       * sem_ch6.adb (Analyze_Subprogram_Body_Helper): Check direct
+       attribute definitions for specs.
+
+2026-01-09  Piotr Trojanek  <[email protected]>
+
+       * sem_prag.adb (Analyze_Pragma): Adjust references in comments for
+       pragma Side_Effects and Volatile_Function.
+
+2026-01-09  Javier Miranda  <[email protected]>
+
+       * exp_ch3.adb (Build_Untagged_Record_Equality): Add missing
+       support for incomplete and private types.
+
+2026-01-09  Viljar Indus  <[email protected]>
+
+       * einfo-utils.adb (Can_Have_Formals): New function for checking
+       if the entity can support formals.
+       * einfo-utils.ads (Can_Have_Formals): Likewise.
+       * ghost.adb (Check_Procedure_Call_Argument_Levels): Avoid checking
+       the type of the formal if the called entity cannot hold formals.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * exp_ch6.adb (Expand_N_Extended_Return_Statement): Do not call
+       Move_Activation_Chain if it is not available in the runtime library.
+
+2026-01-09  Claire Dross  <[email protected]>
+
+       * sem_util.ads (Overlaid_Entity): Return the root of the address
+       clause of an object if it is precisely supported in SPARK.
+       * sem_util.adb (Ultimate_Overlaid_Entity): Use Overlaid_Entity to
+       match the SPARK RM semantics.
+       * sem_prag.adb (Analyze_Global_Item): Only check for overlays on
+       variables.
+       (Analyze_Initialization_Item): Likewise.
+       (Analyze_Input_Item): Likewise.
+
+2026-01-09  Piotr Trojanek  <[email protected]>
+
+       * sem_util.adb (Find_Overlaid_Entity): Detect overlying with slice.
+
+2026-01-09  Ronan Desplanques  <[email protected]>
+
+       * freeze.adb (Size_Known): Modify rejection condition.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * exp_ch5.adb (Expand_N_Assignment_Statement): If a predicate check
+       made on the RHS forced the capture of a function call to remove its
+       side effects, demote No_Ctrl_Actions into No_Finalize_Actions on the
+       N_Assignment_Statement node.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * exp_ch9.ads (Build_Task_Allocate_Block): Change to function and
+       remove first formal parameter.
+       * exp_ch9.adb (Build_Task_Allocate_Block): Likewise.  Return an
+       anonymous list of nodes.
+       * exp_aggr.adb (Convert_Aggr_In_Allocator): Adjust to above change.
+       * exp_ch4.adb (Expand_N_Allocator): Likewise.
+       * exp_ch6.adb (Make_Build_In_Place_Call_In_Allocator): Likewise.
+
+2026-01-09  Piotr Trojanek  <[email protected]>
+
+       * inline.adb (Build_Body_To_Inline): Do not inline ghost functions.
+
+2026-01-09  Ronan Desplanques  <[email protected]>
+
+       * doc/gnat_ugn/building_executable_programs_with_gnat.rst: Update
+       example.
+       * gnat-style.texi: Regenerate.
+       * gnat_ugn.texi: Regenerate.
+
+2026-01-09  Eric Botcazou  <[email protected]>
+
+       * sem_ch4.adb (Analyze_Selected_Component): Give a specific error
+       message for an invalid prefix that is the dereference of a name.
+       * sem_ch8.adb (Find_Selected_Component): Give a consistent error
+       message for the name of an invalid prefix.
+
+2026-01-08  Olivier Hainque  <[email protected]>
+           Alexandre Oliva  <[email protected]>
+
+       * gcc-interface/Make-lang.in (m32_target): Set.
+       (not_m32_target, native_target, native_gnattools1): Set.
+       (ADA_TOOLS_FLAGS_TO_PASS, gnattools): Handle x86_64 natives
+       defaulting to -m32 as cross for gnattools.
+       * gcc-interface/Makefile.in (target_cpu): Set to i686 for
+       x86_64 configurations defaulting to -m32.
+
 2026-01-03  Eric Botcazou  <[email protected]>
 
        PR ada/123371
diff --git a/gcc/algol68/ChangeLog b/gcc/algol68/ChangeLog
index 29f5b4893218..4df6d01d6606 100644
--- a/gcc/algol68/ChangeLog
+++ b/gcc/algol68/ChangeLog
@@ -1,3 +1,7 @@
+2026-01-09  Jose E. Marchesi  <[email protected]>
+
+       * ga68.texi (Worthy characters): Escape @.
+
 2026-01-04  Jose E. Marchesi  <[email protected]>
 
        * a68-lang.cc (a68_post_options): Disable psABI warnings.
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index cbd8b124c123..4da5e532ab5e 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,42 @@
+2026-01-09  David Malcolm  <[email protected]>
+
+       * common.h (struct on_frame_popped): New.
+       (subscriber::on_message): New vfunc for on_frame_popped.
+       * region-model.cc: Include "context.h" and "channels.h".
+       (region_model::pop_frame_callbacks): Delete.
+       (region_model::pop_frame): Port from notify_on_pop_frame to
+       using pub/sub channel.
+       * region-model.h (pop_frame_callback): Delete typedef.
+       (region_model::register_pop_frame_callback): Delete.
+       (region_model::pop_frame_callbacks): Delete.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * analyzer-language.cc: Include "context.h" and "channels.h".
+       (finish_translation_unit_callbacks): Delete.
+       (register_finish_translation_unit_callback): Delete.
+       (run_callbacks): Delete.
+       (on_finish_translation_unit): Port from run_callbacks to pub/sub.
+       * analyzer-language.h (finish_translation_unit_callback): Delete
+       typedef.
+       (register_finish_translation_unit_callback): Delete decl.
+       * common.h (class translation_unit): New forward decl.
+       (struct analyzer_events::on_tu_finished): New.
+       (analyzer_events::subscriber::on_message): Add vfunc for
+       on_tu_finished messages.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * common.h: Define INCLUDE_LIST.
+       (class plugin_analyzer_init_iface): Replace with...
+       (gcc::topics::analyzer_events::on_ana_init): ...this.
+       (gcc::topics::analyzer_events::subscriber): New.
+       * engine.cc: Include "context.h" and "channels.h".
+       (class plugin_analyzer_init_impl): Replace with...
+       (class impl_on_ana_init): ...this.  Fix some overlong lines.
+       (impl_run_checkers): Port from PLUGIN_ANALYZER_INIT to using
+       publish/subscribe framework.
+
 2025-12-16  David Malcolm  <[email protected]>
 
        PR analyzer/123136
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 5b8085f84eb1..266c7390fa1d 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,19 @@
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       PR c/123475
+       * c-typeck.cc (c_find_var_r): New function.
+       (convert_lvalue_to_rvalue): If c_build_function_call_vec
+       folded __atomic_load (&expr, &tmp, SEQ_CST); into
+       (void) (tmp = __atomic_load_<N> (&expr, SEQ_CST)), drop
+       TREE_ADDRESSABLE flag from tmp and set TARGET_EXPR
+       initializer just to the rhs of the MODIFY_EXPR.
+
+2026-01-08  Qing Zhao  <[email protected]>
+
+       * c-parser.cc (has_counted_by_object): Support pointers.
+       (get_counted_by_ref): Support pointers.
+       (c_parser_postfix_expression): Support pointers.
+
 2026-01-07  Tobias Burnus  <[email protected]>
 
        * c-parser.cc (OMP_GROUPPRIVATE_CLAUSE_MASK,
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 444d026eef2c..a4607d6fb4ce 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,15 @@
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       * gen-cxxapi-file.py: Update copyright year.  Separate
+       parts of Copyright word with {:s} so that it doesn't get matched
+       by update-copyright.py.
+
+2026-01-09  Nathaniel Shead  <[email protected]>
+
+       PR c++/123393
+       * name-lookup.cc (make_namespace_finish): Pass from_import to
+       add_using_namespace.
+
 2026-01-07  Tobias Burnus  <[email protected]>
 
        * parser.cc (OMP_GROUPPRIVATE_CLAUSE_MASK,
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index f8c0fd636307..a55a31dc90c9 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,27 @@
+2026-01-09  Jerry DeLisle  <[email protected]>
+
+       PR fortran/123483
+       * trans-array.cc (gfc_deallocate_alloc_comp): Ad the new
+       finalization argument and pass it to structure_alloc_comps.
+       * trans-array.h (gfc_deallocate_alloc_comp): Add a finalization
+       flag that can be passed by gfc_conv_procedure_call.
+       * trans-expr.cc (gfc_conv_procedure_call): Use the new
+       finalization flag.
+
+2026-01-08  Steve Kargl  <[email protected]>
+
+       PR fortran/123321
+       * trans-io.cc (transfer_namelist_element):  Adjust the
+       conditions determining when to use the local name or
+       the var name to build the object name.
+
+2026-01-08  Steve Kargl  <[email protected]>
+
+       PR fortran/123012
+       * trans-io.cc (transfer_namelist_element): Adjust the
+       conditions determining when to use the local name or
+       the var name to build the object name.
+
 2026-01-07  Paul Thomas  <[email protected]>
 
        PR fortran/123071
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6e50cef1d7b7..58d4946fbe1d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,186 @@
+2026-01-09  Robin Dapp  <[email protected]>
+
+       PR tree-optimization/123414
+       * gcc.target/riscv/rvv/autovec/pr123414.c: New test.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * gcc.dg/plugin/analyzer_cpython_plugin.cc
+       (cpython_analyzer_events_subscriber::on_message): Implement for
+       on_frame_popped.
+       (plugin_init): Drop call to
+       region_model::register_pop_frame_callback in favor of the above
+       pub/sub handler.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * gcc.dg/plugin/analyzer_cpython_plugin.cc
+       (cpython_analyzer_events_subscriber::on_message): New.
+       (plugin_init): Port stashing of named types and global vars to
+       pub/sub framework.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * gcc.dg/plugin/analyzer_cpython_plugin.cc: Port from
+       PLUGIN_ANALYZER_INIT to subscribing to analyzer_events_channel.
+       * gcc.dg/plugin/analyzer_gil_plugin.cc: Likewise.
+       * gcc.dg/plugin/analyzer_kernel_plugin.cc: Likewise.
+       * gcc.dg/plugin/analyzer_known_fns_plugin.cc: Likewise.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * gcc.dg/diagnostic-cfgs-html.py: New test.
+       * gcc.dg/diagnostic-cfgs-sarif.py: New test.
+       * gcc.dg/diagnostic-cfgs.c: New test.
+
+2026-01-09  David Malcolm  <[email protected]>
+
+       * gcc.dg/plugin/plugin.exp: Add progress_notifications_plugin.cc.
+       * gcc.dg/plugin/progress_notifications_plugin.cc: New test plugin.
+
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       PR c/123475
+       * gcc.dg/pr123475.c: New test.
+
+2026-01-09  Jerry DeLisle  <[email protected]>
+
+       PR fortran/123483
+       * gfortran.dg/finalize_61.f90: New test.
+       Signed off by: Andrew Benson <[email protected]>
+
+2026-01-09  Vladimir N. Makarov  <[email protected]>
+
+       PR rtl-optimization/123121
+       * gcc.target/i386/pr123121.c: New.
+
+2026-01-09  Martin Jambor  <[email protected]>
+
+       * gcc.dg/ipa/ipcp-agg-2.c: Adjust dump test.
+       * gcc.dg/ipa/ipcp-agg-3.c: Likewise.
+       * gcc.dg/ipa/ipcp-agg-4.c: Likewise.
+       * gcc.dg/ipa/ipcp-agg-14.c: New test.
+       * gcc.dg/vect/pr101145_1.c: Compile with -fno-ipa-cp.
+       * gcc.dg/vect/pr101145_2.c: Likewise.
+       * gcc.dg/vect/pr101145_3.c: Likewise.
+
+2026-01-09  Stefan Schulze Frielinghaus  <[email protected]>
+
+       * gcc.target/s390/asm-constant-1.c: New test.
+
+2026-01-09  Alfie Richards  <[email protected]>
+
+       * lib/target-supports.exp:
+       * gcc.target/aarch64/acle/vmmlaq_f16_mf8.c: New test.
+       * gcc.target/aarch64/acle/vmmlaq_f32_mf8.c: New test.
+       * gcc.target/aarch64/sve2/acle/asm/fmmla_f8f16mm_sve2.c: New test.
+       * gcc.target/aarch64/sve2/acle/asm/fmmla_f8f32mm_sve2.c: New test.
+       * gcc.target/aarch64/sve2/acle/asm/fmmla_sve_f16f32mm.c: New test.
+       * gcc.target/aarch64/sve/acle/general-c/mmla_1.c: Update error messages.
+
+2026-01-09  Rainer Orth  <[email protected]>
+
+       PR tree-optimization/102954
+       * gcc.dg/vect/pr33804.c (scan-tree-dump-times): Only
+       xfail on 32-bit SPARC.
+       * gcc.dg/vect/slp-multitypes-3.c: Likewise.
+
+2026-01-09  Jakub Jelinek  <[email protected]>
+
+       PR target/123489
+       * gcc.target/i386/pr123489.c: New test.
+
+2026-01-09  Nathaniel Shead  <[email protected]>
+
+       PR c++/123393
+       * g++.dg/modules/namespace-18_a.C: New test.
+       * g++.dg/modules/namespace-18_b.C: New test.
+
+2026-01-09  Ben Boeckel  <[email protected]>
+
+       * lib/file-format.exp: Replace gcc-bugs@ with bug reporting link.
+
+2026-01-09  Shreya Munnangi  <[email protected]>
+           Jeff Law  <[email protected]>
+
+       PR target/121778
+       * gcc.target/riscv/pr121778.c: New test.
+
+2026-01-09  Kugan Vivekanandarajah  <[email protected]>
+
+       PR ipa/123383
+       * g++.dg/pr123383.C: New test.
+       co-authored-by: Andrew Pinski <[email protected]>
+
+2026-01-08  Jakub Jelinek  <[email protected]>
+
+       PR middle-end/111817
+       * c-c++-common/pr111817.c: New test.
+
+2026-01-08  Robin Dapp  <[email protected]>
+
+       PR target/122846
+       * gcc.target/riscv/rvv/autovec/dyn-lmul-conv-1.c: New test.
+       * gcc.target/riscv/rvv/autovec/dyn-lmul-conv-2.c: New test.
+       * gcc.target/riscv/rvv/autovec/pr122846.c: New test.
+
+2026-01-08  Qing Zhao  <[email protected]>
+
+       * gcc.dg/builtin-counted-by-ref.c: Update test case.
+       * gcc.dg/builtin-counted-by-ref-2.c: New test.
+       * gcc.dg/builtin-counted-by-ref-3.c: New test.
+
+2026-01-08  Richard Sandiford  <[email protected]>
+           Richard Biener  <[email protected]>
+
+       PR tree-optimization/122793
+       * gcc.dg/vect/vect-pr122793.c: New testcase.
+
+2026-01-08  Richard Biener  <[email protected]>
+
+       PR tree-optimization/123310
+       * gcc.dg/torture/pr123310.c: New testcase.
+
+2026-01-08  Richard Biener  <[email protected]>
+
+       PR tree-optimization/123298
+       * gcc.dg/torture/pr123298.c: New testcase.
+
+2026-01-08  Stefan Schulze Frielinghaus  <[email protected]>
+
+       * gcc.target/s390/narrow-logical-op-1.c: New test.
+
+2026-01-08  Jakub Jelinek  <[email protected]>
+           Andrew Pinski  <[email protected]>
+
+       PR tree-optimization/123319
+       * gcc.dg/pr123319.c: Replace test with target independent one.  Move
+       previous test to ...
+       * gcc.target/i386/pr123319.c: ... here.  Add comment with PR number,
+       add -msse to dg-options, move immintrin.h include right after stdint.h
+       include.
+
+2026-01-08  Jakub Jelinek  <[email protected]>
+
+       PR rtl-optimization/121675
+       * gcc.dg/pr121675.c: New test.
+
+2026-01-08  Richard Biener  <[email protected]>
+
+       PR middle-end/123107
+       * gcc.dg/torture/pr123107.c: New testcase.
+
+2026-01-08  Steve Kargl  <[email protected]>
+
+       PR fortran/123012
+       * gfortran.dg/namelist_99.f90: New test.
+
+2026-01-08  Andrew Pinski  <[email protected]>
+
+       PR tree-optimization/123382
+       * gcc.dg/torture/pr123382-1.c: New test.
+       * gcc.dg/torture/pr123382-2.c: New test.
+
 2026-01-07  Paul Thomas  <[email protected]>
 
        PR fortran/90218
diff --git a/gnattools/ChangeLog b/gnattools/ChangeLog
index ed360f6a9aec..6dcb5f5cd319 100644
--- a/gnattools/ChangeLog
+++ b/gnattools/ChangeLog
@@ -1,3 +1,11 @@
+2026-01-08  Olivier Hainque  <[email protected]>
+           Alexandre Oliva  <[email protected]>
+
+       * configure.ac (default_gnattools_target): Use gnattools-cross
+       when not bootstrapping x86_64 configurations defaulting to
+       -m32.
+       * configure: Rebuild.
+
 2025-06-22  Nicolas Boulenguez  <[email protected]>
 
        PR ada/120106
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index ff96a480fb16..d7c13b766635 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,8 @@
+2026-01-09  Ben Boeckel  <[email protected]>
+
+       * configure: Regenerate.
+       * configure.ac: Replace gcc-bugs@ with bug reporting link.
+
 2025-12-10  Jason Merrill  <[email protected]>
 
        * include/cpplib.h (struct cpp_callbacks): Replace 'path' parameter
diff --git a/libdecnumber/ChangeLog b/libdecnumber/ChangeLog
index 03ca7a889827..2a04cafe602f 100644
--- a/libdecnumber/ChangeLog
+++ b/libdecnumber/ChangeLog
@@ -1,3 +1,8 @@
+2026-01-09  Ben Boeckel  <[email protected]>
+
+       * configure: Regenerate.
+       * configure.ac: Replace gcc-bugs@ with bug reporting link.
+
 2024-04-02  Jakub Jelinek  <[email protected]>
 
        * decCommon.c (decFinalize): Fix duplicated words in
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index ec140083da4e..e755c7fa7976 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,24 @@
+2026-01-09  Thomas Koenig  <[email protected]>
+
+       * io/io.h: Change type of self to intptr_t.
+       * io/async.h (LOCK_UNIT): Cast __gthread_self () to intptr_t.
+       (TRYLOCK_UNIT): Likewise.
+       (OWN_THREAD_ID): Likewise.
+
+2026-01-08  Thomas Koenig  <[email protected]>
+
+       * io/async.h: DEBUG_ASYNC needs gtreads support.
+       (LOCK_UNIT): Only lock when there is pthreads support and it is active.
+       Otherwise, just set unit->self to 1.
+       (UNLOCK_UNIT): Only unlock when there is pthreads support and it is 
active.
+       Otherwise, just set unit->self to 0.
+       (TRYLOCK_UNIT): Only try locking when thee is pthreads support and it is
+       active.  Otherwise, return unit->self.
+       (OWN_THREAD_ID): New macro.
+       * io/io.h: gfc_unit's self is an int when there is no gthreads support.
+       * io/unit.c (check_for_recursive): Check for equality of unit which
+       locked to OWN_THREAD_ID.
+
 2026-01-06  Thomas Koenig  <[email protected]>
 
        * io/async.h (UNLOCK_UNIT): New macro.
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 37c351d33f5f..b6ce748f5084 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2026-01-09  Jan Beulich  <[email protected]>
+
+       * testsuite/test-pexecute.c (main): Adjust a tracing fprintf().
+
 2025-11-30  Jose E. Marchesi  <[email protected]>
 
        * simple-object-mach-o.c
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index e8f629df5124..3db08d03c3e6 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,52 @@
+2026-01-09  Jonathan Wakely  <[email protected]>
+
+       * src/c++20/atomic.cc (use_proxy_wait): Remove unused second
+       parameter.
+       (__wait_args::_M_setup_proxy_wait): Remove second argument.
+       (__notify_impl): Likewise.
+
+2026-01-09  Jonathan Wakely  <[email protected]>
+
+       * include/bits/atomic_timed_wait.h (__atomic_wait_address_until):
+       Use _M_on_wake instead of _M_setup_wait after waking.
+       (__atomic_wait_address_for): Likewise.
+       * include/bits/atomic_wait.h (__atomic_wait_address): Likewise.
+       (__wait_args::_M_setup_wait): Remove third parameter and move
+       code to update _M_old to ...
+       (__wait_args::_M_on_wake): New member function to update _M_old
+       after waking, only calling _M_setup_proxy_wait if needed.
+       (__wait_args::_M_store): New member function to update _M_old
+       from a value, for non-proxy waits.
+       * src/c++20/atomic.cc (__wait_args::_M_setup_proxy_wait): If
+       _M_obj is not addr, only load a new value and return true.
+
+2026-01-09  Jonathan Wakely  <[email protected]>
+           Tomasz Kamiński  <[email protected]>
+
+       PR libstdc++/122878
+       * include/bits/semaphore_base.h (_M_try_acquire): Replace
+       _M_try_acquire_for call with explicit loop and call to
+       __atomic_wait_address_for.
+       (_M_try_acquire_for): Replace loop with call to
+       _M_try_acquire_until.
+
+2026-01-09  Keith Packard  <[email protected]>
+
+       * acinclude.m4 (GLIBCXX_CONFIGURE): Add --with-picolibc.
+       * configure: Regenerate.
+       * configure.ac: Add handling for with_picolibc=yes.
+       * config/os/picolibc/ctype_base.h: New file.
+       * config/os/picolibc/ctype_configure_char.cc: New file.
+       * config/os/picolibc/ctype_inline.h: New file.
+       * config/os/picolibc/os_defines.h: New file.
+
+2026-01-08  Tomasz Kamiński  <[email protected]>
+
+       * testsuite/20_util/variant/constinit.cc: Use scan-tree-dump
+       for matching of constructor.
+       * testsuite/20_util/variant/constinit_compat.cc: Likewise.
+       * testsuite/lib/libstdc++.exp: Load scantree.exp and scandump.exp.
+
 2026-01-07  Jonathan Wakely  <[email protected]>
 
        PR libstdc++/123100

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