When semantic checking mode is active, i.e. when switch -gnatc is
present or when the frontend is operating in the GNATprove mode,
we now rewrite calls to GNAT.Source_Info routines in evaluation
and not expansion (which is disabled in these modes).

This is needed to recognize constants initialized with calls to
GNAT.Source_Info as static constants, regardless of expansion being
enabled.

gcc/ada/

	* exp_intr.ads, exp_intr.adb (Expand_Source_Info): Move
	declaration to package spec.
	* sem_eval.adb (Eval_Intrinsic_Call): Evaluate calls to
	GNAT.Source_Info where possible.

Code cleanup; semantics is unaffected.

gcc/ada/

	* checks.adb (Remove_Checks): Combine CASE alternatives.

Code cleanup.

gcc/ada/

	* libgnat/s-os_lib.ads: Remove extra whitespace.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/avx10_2-partial-bf-vector-fma-1.c: Separated 32-bit scan
	and removed register checks in spill situations.

When r14-303-gb9fedabe381cce was done, it was missed that some of the common parts could
be done in a template and a lambda could be used. This patch implements that. This new
function can be used later on to implement a simple ifcvt pass.

gcc/ChangeLog:

	* tree-ssa-phiopt.cc (execute_over_cond_phis): New template function,
	moved the common parts from pass_phiopt::execute/pass_cselim::execute.
	(pass_phiopt::execute): Move the functon specific parts of the loop
	into an lamdba.
	(pass_cselim::execute): Likewise.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

This converts the uses of PHI_RESULT in phiopt to be gimple_phi_result
instead. Since there was already a mismatch of uses here, it
would be good to use prefered one (gimple_phi_result) instead.

Bootstrapped and tested on x86_64-linux-gnu.

	PR tree-optimization/116643
gcc/ChangeLog:

	* tree-ssa-phiopt.cc (replace_phi_edge_with_variable): s/PHI_RESULT/gimple_phi_result/.
	(factor_out_conditional_operation): Likewise.
	(minmax_replacement): Likewise.
	(spaceship_replacement): Likewise.
	(cond_store_replacement): Likewise.
	(cond_if_else_store_replacement_1): Likewise.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

It fix the regression by

a51f2fc0 is the first bad commit
commit a51f2fc0
Author: liuhongt <hongtao.liu@intel.com>
Date:   Wed Sep 4 15:39:17 2024 +0800

    Handle const0_operand for *avx2_pcmp<mode>3_1.

caused

FAIL: gcc.target/i386/pr59539-1.c scan-assembler-times vmovdqu|vmovups 1

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr59539-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr59539-1.c --target_board='unix{-m64\ -march=cascadelake}'"

gcc/ChangeLog:

	* config/i386/sse.md (*avx2_pcmp<mode>3_1): Don't force_reg
	operands[3] when it's not const0_rtx.

Use a new struct diagnostic_option_id rather than just "int" when
referring to command-line options controlling warnings in the
diagnostic subsystem.

No functional change intended, but better documents the meaning of
the code.

gcc/c-family/ChangeLog:
	* c-common.cc (c_option_controlling_cpp_diagnostic): Return
	diagnostic_option_id rather than int.
	(c_cpp_diagnostic): Update for renaming of
	diagnostic_override_option_index to diagnostic_set_option_id.

gcc/c/ChangeLog:
	* c-errors.cc (pedwarn_c23): Use "diagnostic_option_id option_id"
	rather than "int opt".  Update for renaming of diagnostic_info
	field.
	(pedwarn_c11): Likewise.
	(pedwarn_c99): Likewise.
	(pedwarn_c90): Likewise.
	* c-tree.h (pedwarn_c90): Likewise for decl.
	(pedwarn_c99): Likewise.
	(pedwarn_c11): Likewise.
	(pedwarn_c23): Likewise.

gcc/cp/ChangeLog:
	* constexpr.cc (constexpr_error): Update for renaming of
	diagnostic_info field.
	* cp-tree.h (pedwarn_cxx98): Use "diagnostic_option_id" rather
	than "int".
	* error.cc (cp_adjust_diagnostic_info): Update for renaming of
	diagnostic_info field.
	(pedwarn_cxx98): Use "diagnostic_option_id option_id" rather than
	"int opt".  Update for renaming of diagnostic_info field.
	(diagnostic_set_info): Likewise.

gcc/d/ChangeLog:
	* d-diagnostic.cc (d_diagnostic_report_diagnostic): Update for
	renaming of diagnostic_info field.

gcc/ChangeLog:
	* diagnostic-core.h (struct diagnostic_option_id): New.
	(warning): Use it rather than "int" for param.
	(warning_n): Likewise.
	(warning_at): Likewise.
	(warning_meta): Likewise.
	(pedwarn): Likewise.
	(permerror_opt): Likewise.
	(emit_diagnostic): Likewise.
	(emit_diagnostic_valist): Likewise.
	(emit_diagnostic_valist_meta): Likewise.
	* diagnostic-format-json.cc
	(json_output_format::on_report_diagnostic): Update for renaming of
	diagnostic_info field.
	* diagnostic-format-sarif.cc (sarif_builder::make_result_object):
	Likewise.
	(make_reporting_descriptor_object_for_warning): Likewise.
	* diagnostic-format-text.cc (print_option_information): Likewise.
	* diagnostic-global-context.cc (emit_diagnostic): Use
	"diagnostic_option_id option_id" rather than "int opt".
	(emit_diagnostic_valist): Likewise.
	(emit_diagnostic_valist_meta): Likewise.
	(warning): Likewise.
	(warning_at): Likewise.
	(warning_meta): Likewise.
	(warning_n): Likewise.
	(pedwarn): Likewise.
	(permerror_opt): Likewise.
	* diagnostic.cc (diagnostic_set_info_translated): Update for
	renaming of diagnostic_info field.
	(diagnostic_option_classifier::classify_diagnostic): Use
	"diagnostic_option_id option_id" rather than "int opt".
	(update_effective_level_from_pragmas): Update for renaming of
	diagnostic_info field.
	(diagnostic_context::diagnostic_enabled): Likewise.
	(diagnostic_context::warning_enabled_at): Use
	"diagnostic_option_id option_id" rather than "int opt".
	(diagnostic_context::diagnostic_impl): Likewise.
	(diagnostic_context::diagnostic_n_impl): Likewise.
	* diagnostic.h (diagnostic_info::diagnostic_info): Update for...
	(diagnostic_info::option_index): Rename...
	(diagnostic_info::option_id): ...to this.
	(class diagnostic_option_manager): Use
	"diagnostic_option_id option_id" rather than "int opt" for vfuncs.
	(diagnostic_option_classifier): Likewise for member funcs.
	(diagnostic_classification_change_t::option): Add comment.
	(diagnostic_context::warning_enabled_at): Use
	"diagnostic_option_id option_id" rather than "int option_index".
	(diagnostic_context::option_unspecified_p): Likewise.
	(diagnostic_context::classify_diagnostic): Likewise.
	(diagnostic_context::option_enabled_p): Likewise.
	(diagnostic_context::make_option_name): Likewise.
	(diagnostic_context::make_option_url): Likewise.
	(diagnostic_context::diagnostic_impl): Likewise.
	(diagnostic_context::diagnostic_n_impl): Likewise.
	(diagnostic_override_option_index): Rename...
	(diagnostic_set_option_id): ...to this, and update for
	diagnostic_info field renaming.
	(diagnostic_classify_diagnostic): Use "diagnostic_option_id"
	rather than "int".
	(warning_enabled_at): Likewise.
	(option_unspecified_p): Likewise.

gcc/fortran/ChangeLog:
	* cpp.cc (cb_cpp_diagnostic_cpp_option): Convert return type from
	"int" to "diagnostic_option_id".
	(cb_cpp_diagnostic): Update for renaming of
	diagnostic_override_option_index to diagnostic_set_option_id.
	* error.cc (gfc_warning): Update for renaming of diagnostic_info
	field.
	(gfc_warning_now_at): Likewise.
	(gfc_warning_now): Likewise.
	(gfc_warning_internal): Likewise.

gcc/ChangeLog:
	* ipa-pure-const.cc: Replace include of "opts.h" with
	"opts-diagnostic.h".
	(suggest_attribute): Convert param from int to
	diagnostic_option_id.
	* lto-wrapper.cc (class lto_diagnostic_option_manager): Use
	diagnostic_option_id rather than "int".
	* opts-common.cc
	(compiler_diagnostic_option_manager::option_enabled_p): Likewise.
	* opts-diagnostic.h (class gcc_diagnostic_option_manager):
	Likewise.
	(class compiler_diagnostic_option_manager): Likewise.
	* opts.cc (compiler_diagnostic_option_manager::make_option_name):
	Likewise.
	(gcc_diagnostic_option_manager::make_option_url): Likewise.
	* substring-locations.cc
	(format_string_diagnostic_t::emit_warning_n_va): Likewise.
	(format_string_diagnostic_t::emit_warning_va): Likewise.
	(format_string_diagnostic_t::emit_warning): Likewise.
	(format_string_diagnostic_t::emit_warning_n): Likewise.
	* substring-locations.h
	(format_string_diagnostic_t::emit_warning_va): Likewise.
	(format_string_diagnostic_t::emit_warning_n_va): Likewise.
	(format_string_diagnostic_t::emit_warning): Likewise.
	(format_string_diagnostic_t::emit_warning_n): Likewise.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>

Introduce a diagnostic_option_manager class to help isolate the
diagnostics subsystem from GCC's option handling.

No functional change intended.

gcc/ChangeLog:
	* diagnostic.cc (diagnostic_context::initialize): Replace
	m_options_callbacks with m_option_mgr.
	(diagnostic_context::set_option_hooks): Replace with...
	(diagnostic_context::set_option_manager): ...this.
	* diagnostic.h (diagnostic_option_enabled_cb): Delete.
	(diagnostic_make_option_name_cb): Delete.
	(diagnostic_make_option_url_cb): Delete.
	(class diagnostic_option_manager): New.
	(diagnostic_manager::option_enabled_p): Convert from using
	m_option_callbacks to m_option_mgr.
	(diagnostic_manager::make_option_name): Likewise.
	(diagnostic_manager::make_option_url): Likewise.
	(diagnostic_manager::set_option_hooks): Replace with...
	(diagnostic_manager::set_option_manager): ...this.
	(diagnostic_manager::get_lang_mask): Update for field changes.
	(diagnostic_manager::m_option_callbacks): Replace with...
	(diagnostic_manager::m_option_mgr): ...this and...
	(diagnostic_manager::m_lang_mask): ...this.
	* lto-wrapper.cc (class lto_diagnostic_option_manager): New.
	(main): Port from option hooks to diagnostic_option_manager.
	* opts-common.cc: Include "opts-diagnostic.h".
	(compiler_diagnostic_option_manager::option_enabled_p): New.
	* opts-diagnostic.h (option_name): Drop decl.
	(get_option_url): Drop decl.
	(class gcc_diagnostic_option_manager): New.
	(class compiler_diagnostic_option_manager): New.
	* opts.cc (option_name): Convert to...
	(compiler_diagnostic_option_manager::make_option_name): ...this.
	(get_option_url): Convert to...
	(gcc_diagnostic_option_manager::make_option_url): ...this.
	* toplev.cc (general_init): Port from option hooks to
	diagnostic_option_manager.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>

Rename diagnostic_context's "printer" field to "m_printer",
for consistency with other fields, and to highlight places
where we currently use this, to help assess feasibility
of supporting multiple output sinks (PR other/116613).

No functional change intended.

gcc/ChangeLog:
	PR other/116613
	* attribs.cc (decls_mismatched_attributes): Rename
	diagnostic_context's "printer" field to "m_printer".
	(attr_access::array_as_string): Likewise.
	* diagnostic-format-json.cc
	(json_output_format::on_report_diagnostic): Likewise.
	(diagnostic_output_format_init_json): Likewise.
	* diagnostic-format-sarif.cc
	(sarif_result::on_nested_diagnostic): Likewise.
	(sarif_ice_notification): Likewise.
	(sarif_builder::on_report_diagnostic): Likewise.
	(sarif_builder::make_result_object): Likewise.
	(sarif_builder::make_location_object): Likewise.
	(sarif_builder::make_message_object_for_diagram): Likewise.
	(diagnostic_output_format_init_sarif): Likewise.
	* diagnostic-format-text.cc
	(diagnostic_text_output_format::~diagnostic_text_output_format):
	Likewise.
	(diagnostic_text_output_format::on_report_diagnostic): Likewise.
	(diagnostic_text_output_format::on_diagram): Likewise.
	(diagnostic_text_output_format::print_any_cwe): Likewise.
	(diagnostic_text_output_format::print_any_rules): Likewise.
	(diagnostic_text_output_format::print_option_information):
	Likewise.
	* diagnostic-format.h (diagnostic_output_format::get_printer):
	New.
	* diagnostic-global-context.cc (verbatim): Rename
	diagnostic_context's "printer" field to "m_printer".
	* diagnostic-path.cc (path_label::get_text): Likewise.
	(print_path_summary_as_text): Likewise.
	(diagnostic_context::print_path): Likewise.
	(selftest::test_empty_path): Likewise.
	(selftest::test_intraprocedural_path): Likewise.
	(selftest::test_interprocedural_path_1): Likewise.
	(selftest::test_interprocedural_path_2): Likewise.
	(selftest::test_recursion): Likewise.
	(selftest::test_control_flow_1): Likewise.
	(selftest::test_control_flow_2): Likewise.
	(selftest::test_control_flow_3): Likewise.
	(assert_cfg_edge_path_streq): Likewise.
	(selftest::test_control_flow_5): Likewise.
	(selftest::test_control_flow_6): Likewise.
	* diagnostic-show-locus.cc (layout::layout): Likewise.
	(selftest::test_layout_x_offset_display_utf8): Likewise.
	(selftest::test_layout_x_offset_display_tab): Likewise.
	(selftest::test_diagnostic_show_locus_unknown_location): Likewise.
	(selftest::test_one_liner_simple_caret): Likewise.
	(selftest::test_one_liner_no_column): Likewise.
	(selftest::test_one_liner_caret_and_range): Likewise.
	(selftest::test_one_liner_multiple_carets_and_ranges): Likewise.
	(selftest::test_one_liner_fixit_insert_before): Likewise.
	(selftest::test_one_liner_fixit_insert_after): Likewise.
	(selftest::test_one_liner_fixit_remove): Likewise.
	(selftest::test_one_liner_fixit_replace): Likewise.
	(selftest::test_one_liner_fixit_replace_non_equal_range):
	Likewise.
	(selftest::test_one_liner_fixit_replace_equal_secondary_range):
	Likewise.
	(selftest::test_one_liner_fixit_validation_adhoc_locations):
	Likewise.
	(selftest::test_one_liner_many_fixits_1): Likewise.
	(selftest::test_one_liner_many_fixits_2): Likewise.
	(selftest::test_one_liner_labels): Likewise.
	(selftest::test_one_liner_simple_caret_utf8): Likewise.
	(selftest::test_one_liner_caret_and_range_utf8): Likewise.
	(selftest::test_one_liner_multiple_carets_and_ranges_utf8):
	Likewise.
	(selftest::test_one_liner_fixit_insert_before_utf8): Likewise.
	(selftest::test_one_liner_fixit_insert_after_utf8): Likewise.
	(selftest::test_one_liner_fixit_remove_utf8): Likewise.
	(selftest::test_one_liner_fixit_replace_utf8): Likewise.
	(selftest::test_one_liner_fixit_replace_non_equal_range_utf8):
	Likewise.
	(selftest::test_one_liner_fixit_replace_equal_secondary_range_utf8):
	Likewise.
	(selftest::test_one_liner_fixit_validation_adhoc_locations_utf8):
	Likewise.
	(selftest::test_one_liner_many_fixits_1_utf8): Likewise.
	(selftest::test_one_liner_many_fixits_2_utf8): Likewise.
	(selftest::test_one_liner_labels_utf8): Likewise.
	(selftest::test_one_liner_colorized_utf8): Likewise.
	(selftest::test_add_location_if_nearby): Likewise.
	(selftest::test_diagnostic_show_locus_fixit_lines): Likewise.
	(selftest::test_overlapped_fixit_printing): Likewise.
	(selftest::test_overlapped_fixit_printing_utf8): Likewise.
	(selftest::test_overlapped_fixit_printing_2): Likewise.
	(selftest::test_fixit_insert_containing_newline): Likewise.
	(selftest::test_fixit_insert_containing_newline_2): Likewise.
	(selftest::test_fixit_replace_containing_newline): Likewise.
	(selftest::test_fixit_deletion_affecting_newline): Likewise.
	(selftest::test_tab_expansion): Likewise.
	(selftest::test_escaping_bytes_1): Likewise.
	(selftest::test_escaping_bytes_2): Likewise.
	(selftest::test_line_numbers_multiline_range): Likewise.
	* diagnostic.cc (file_name_as_prefix): Likewise.
	(diagnostic_set_caret_max_width): Likewise.
	(diagnostic_context::initialize): Likewise.
	(diagnostic_context::color_init): Likewise.
	(diagnostic_context::urls_init): Likewise.
	(diagnostic_context::finish): Likewise.
	(diagnostic_context::get_location_text): Likewise.
	(diagnostic_build_prefix): Likewise.
	(diagnostic_context::report_current_module): Likewise.
	(default_diagnostic_starter): Likewise.
	(default_diagnostic_start_span_fn): Likewise.
	(default_diagnostic_finalizer): Likewise.
	(diagnostic_context::report_diagnostic): Likewise.
	(diagnostic_append_note): Likewise.
	(diagnostic_context::error_recursion): Likewise.
	(fancy_abort): Likewise.
	* diagnostic.h (diagnostic_context::set_show_highlight_colors):
	Likewise.
	(diagnostic_context::printer): Rename to...
	(diagnostic_context::m_printer): ...this.
	(diagnostic_format_decoder): Rename diagnostic_context's "printer"
	field to "m_printer".
	(diagnostic_prefixing_rule): Likewise.
	(diagnostic_ready_p): Likewise.
	* gimple-ssa-warn-access.cc (pass_waccess::maybe_warn_memmodel):
	Likewise.
	* langhooks.cc (lhd_print_error_function): Likewise.
	* lto-wrapper.cc (print_lto_docs_link): Likewise.
	* opts-global.cc (init_options_once): Likewise.
	* opts.cc (common_handle_option): Likewise.
	* simple-diagnostic-path.cc (simple_diagnostic_path_cc_tests):
	Likewise.
	* text-art/dump.h (dump_to_file<T>): Likewise.
	* toplev.cc (announce_function): Likewise.
	(toplev::main): Likewise.
	* tree-diagnostic.cc (default_tree_diagnostic_starter): Likewise.
	* tree.cc (escaped_string::escape): Likewise.
	(selftest::test_escaped_strings): Likewise.

gcc/ada/ChangeLog:
	PR other/116613
	* gcc-interface/misc.cc (internal_error_function): Rename
	diagnostic_context's "printer" field to "m_printer".

gcc/analyzer/ChangeLog:
	PR other/116613
	* access-diagram.cc (access_range::dump): Rename
	diagnostic_context's "printer" field to "m_printer".
	* analyzer-language.cc (on_finish_translation_unit): Likewise.
	* analyzer.cc (make_label_text): Likewise.
	(make_label_text_n): Likewise.
	* call-details.cc (call_details::dump): Likewise.
	* call-summary.cc (call_summary::dump): Likewise.
	(call_summary_replay::dump): Likewise.
	* checker-event.cc (checker_event::debug): Likewise.
	* constraint-manager.cc (range::dump): Likewise.
	(bounded_range::dump): Likewise.
	(bounded_ranges::dump): Likewise.
	(constraint_manager::dump): Likewise.
	* diagnostic-manager.cc
	(diagnostic_manager::emit_saved_diagnostic): Likewise.
	* engine.cc (exploded_node::dump): Likewise.
	(exploded_path::dump): Likewise.
	(run_checkers): Likewise.
	* kf-analyzer.cc (kf_analyzer_dump_escaped::impl_call_pre):
	Likewise.
	* pending-diagnostic.cc (evdesc::event_desc::formatted_print):
	Likewise.
	* program-point.cc (function_point::print_source_line): Likewise.
	(program_point::dump): Likewise.
	* program-state.cc (extrinsic_state::dump_to_file): Likewise.
	(sm_state_map::dump): Likewise.
	(program_state::dump_to_file): Likewise.
	* ranges.cc (symbolic_byte_offset::dump): Likewise.
	(symbolic_byte_range::dump): Likewise.
	* region-model-reachability.cc (reachable_regions::dump): Likewise.
	* region-model.cc (region_to_value_map::dump): Likewise.
	(region_model::dump): Likewise.
	(model_merger::dump): Likewise.
	* region.cc (region_offset::dump): Likewise.
	(region::dump): Likewise.
	* sm-malloc.cc (deallocator_set::dump): Likewise.
	(sufficiently_similar_p): Likewise.
	* store.cc (uncertainty_t::dump): Likewise.
	(binding_key::dump): Likewise.
	(binding_map::dump): Likewise.
	(binding_cluster::dump): Likewise.
	(store::dump): Likewise.
	* supergraph.cc (supergraph::dump_dot_to_file): Likewise.
	(superedge::dump): Likewise.
	* svalue.cc (svalue::dump): Likewise.

gcc/c-family/ChangeLog:
	PR other/116613
	* c-format.cc (selftest::test_type_mismatch_range_labels): Rename
	diagnostic_context's "printer" field to "m_printer".
	(selftest::test_type_mismatch_range_labels): Likewise.
	* c-opts.cc (c_diagnostic_finalizer): Likewise.

gcc/c/ChangeLog:
	PR other/116613
	* c-objc-common.cc (c_initialize_diagnostics): Rename
	diagnostic_context's "printer" field to "m_printer".

gcc/cp/ChangeLog:
	PR other/116613
	* error.cc (cxx_initialize_diagnostics): Rename
	diagnostic_context's "printer" field to "m_printer".
	(cxx_print_error_function): Likewise.
	(cp_diagnostic_starter): Likewise.
	(cp_print_error_function): Likewise.
	(print_instantiation_full_context): Likewise.
	(print_instantiation_partial_context_line): Likewise.
	(maybe_print_constexpr_context): Likewise.
	(print_location): Likewise.
	(print_constrained_decl_info): Likewise.
	(print_concept_check_info): Likewise.
	(print_constraint_context_head): Likewise.
	(print_requires_expression_info): Likewise.
	* module.cc (noisy_p): Likewise.

gcc/d/ChangeLog:
	PR other/116613
	* d-diagnostic.cc (d_diagnostic_report_diagnostic): Rename
	diagnostic_context's "printer" field to "m_printer".

gcc/fortran/ChangeLog:
	PR other/116613
	* error.cc (gfc_clear_pp_buffer): Rename diagnostic_context's
	"printer" field to "m_printer".
	(gfc_warning): Likewise.
	(gfc_diagnostic_build_kind_prefix): Likewise.
	(gfc_diagnostic_build_locus_prefix): Likewise.
	(gfc_diagnostic_starter): Likewise.
	(gfc_diagnostic_starter): Likewise.
	(gfc_diagnostic_start_span): Likewise.
	(gfc_diagnostic_finalizer): Likewise.
	(gfc_warning_check): Likewise.
	(gfc_error_opt): Likewise.
	(gfc_error_check): Likewise.

gcc/jit/ChangeLog:
	PR other/116613
	* jit-playback.cc (add_diagnostic): Rename diagnostic_context's
	"printer" field to "m_printer".

gcc/testsuite/ChangeLog:
	PR other/116613
	* gcc.dg/plugin/analyzer_cpython_plugin.c (dump_refcnt_info):
	Update for renaming of field "printer" to "m_printer".
	* gcc.dg/plugin/diagnostic_group_plugin.c
	(test_diagnostic_starter): Likewise.
	(test_diagnostic_start_span_fn): Likewise.
	(test_output_format::on_begin_group): Likewise.
	(test_output_format::on_end_group): Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_paths.c: Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
	(custom_diagnostic_finalizer): Likewise.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>

We were using
  https://raw.githubusercontent.com/oasis-tcs/sarif-spec/master/Schemata/sarif-schema-2.1.0.json
as the URL for the SARIF 2.1 schema, but this is now a 404.

Update it to the URL listed in the spec (§3.13.3 "$schema property"),
which is:
  https://docs.oasis-open.org/sarif/sarif/v2.1.0/errata01/os/schemas/sarif-schema-2.1.0.json
and update the copy in
  gcc/testsuite/lib/sarif-schema-2.1.0.json
used by the "verify-sarif-file" DejaGnu directive to the version found at
that latter URL; the sha256 sum changes
from: 2b19d2358baef0251d7d24e208d05ffabf1b2a3ab5e1b3a816066fc57fd4a7e8
  to: c3b4bb2d6093897483348925aaa73af03b3e3f4bd4ca38cef26dcb4212a2682e

Doing so added a validation error on
  c-c++-common/diagnostic-format-sarif-file-pr111700.c
for which we emit this textual output:
  this-file-does-not-exist.c: warning: #warning message [-Wcpp]
with no line number, and these invalid SARIF regions within the
physical location of the warning:
  "region": {"startColumn": 2,
             "endColumn": 9},
  "contextRegion": {}

This is due to this directive:
  # 0 "this-file-does-not-exist.c"
with line number 0.

The patch fixes this by not creating regions that have startLine <= 0.

gcc/ChangeLog:
	PR other/116603
	* diagnostic-format-sarif.cc (SARIF_SCHEMA): Update URL.
	(sarif_builder::maybe_make_region_object): Don't create regions
	with startLine <= 0.
	(sarif_builder::maybe_make_region_object_for_context): Likewise.

gcc/testsuite/ChangeLog:
	PR other/116603
	* gcc.dg/plugin/diagnostic-test-metadata-sarif.py (test_basics):
	Update expected schema URL.
	* gcc.dg/plugin/diagnostic-test-paths-multithreaded-sarif.py:
	Likewise.
	* gcc.dg/sarif-output/test-include-chain-1.py: Likewise.
	* gcc.dg/sarif-output/test-include-chain-2.py: Likewise.
	* gcc.dg/sarif-output/test-missing-semicolon.py: Likewise.
	* gcc.dg/sarif-output/test-no-diagnostics.py: Likewise.
	* gcc.dg/sarif-output/test-werror.py: Likewise.
	* lib/sarif-schema-2.1.0.json: Update with copy downloaded from
	https://docs.oasis-open.org/sarif/sarif/v2.1.0/errata01/os/schemas/sarif-schema-2.1.0.json



Signed-off-by: David Malcolm <dmalcolm@redhat.com>

Double-word memory operands are accessed as their high and low part, so the
memory location has to be offsettable.  Use "o" constraint instead of "m"
for double-word memory operands.

gcc/ChangeLog:

	* config/i386/i386.md (*insvdi_lowpart_1): Use "o" constraint
	instead of "m" for double-word mode memory operands.
	(*add<dwi>3_doubleword_zext): Ditto.
	(*addv<dwi>4_doubleword_1): Use "jO" constraint instead of "jM"
	for double-word mode memory operands.

I missed this in r15-1108-g70f26314b62e2d.

gcc/analyzer/ChangeLog:
	* call-summary.cc
	(call_summary_replay::convert_region_from_summary_1): Drop unused
	local "summary_cast_reg"

Signed-off-by: David Malcolm <dmalcolm@redhat.com>

This expands on optimizing `popcount(a) == 1` to also handle
`popcount(a) <= 1`. `<= 1` can be expanded as `(a & -a) == 0`
like what is done for `== 1` if we know that a was nonzero.
We have to do the optimization in 2 places due to if we have
an optab entry for popcount or not.

Built and tested for aarch64-linux-gnu.

	PR middle-end/90693

gcc/ChangeLog:

	* internal-fn.cc (expand_POPCOUNT): Handle the second argument
	being `-1` for `<= 1`.
	* tree-ssa-math-opts.cc (match_single_bit_test): Handle LE/GT
	cases.
	(math_opts_dom_walker::after_dom_children): Call match_single_bit_test
	for LE_EXPR/GT_EXPR also.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/popcnt-le-1.c: New test.
	* gcc.target/aarch64/popcnt-le-2.c: New test.
	* gcc.target/aarch64/popcnt-le-3.c: New test.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

pa_print_operand handles both operand orders for scaled index
addresses, so it isn't necessary to canonicalize the order of
operands.

2024-09-09  John David Anglin  <danglin@gcc.gnu.org>

gcc/ChangeLog:

	* config/pa/pa.cc (pa_legitimate_address_p): Don't
	canonicalize operand order of scaled index addresses.

When evaluating the difference of two aligned pointers in CCP we
fail to handle the EXACT_DIV_EXPR by the element size that occurs.
The testcase then also exercises modulo to test alignment but
modulo by a power-of-two isn't handled either.

	PR tree-optimization/116514
	* tree-ssa-ccp.cc (bit_value_binop): Handle EXACT_DIV_EXPR
	like TRUNC_DIV_EXPR.  Handle exact division of a signed value
	by a power-of-two like a shift.  Handle unsigned division by
	a power-of-two like a shift.
	Handle unsigned TRUNC_MOD_EXPR by power-of-two, handle signed
	TRUNC_MOD_EXPR by power-of-two if the result is zero.

	* gcc.dg/tree-ssa/ssa-ccp-44.c: New testcase.

The following avoids classifying a double reduction that's not
actually a reduction in the outer loop (because its value isn't
used outside of the outer loop).  This avoids us ICEing on the
unexpected stmt/SLP node arrangement.

	PR tree-optimization/116647
	* tree-vect-loop.cc (vect_is_simple_reduction): Add missing
	check to double reduction detection.

	* gcc.dg/torture/pr116647.c: New testcase.
	* gcc.dg/vect/no-scevccp-pr86725-2.c: Adjust expected pattern.
	* gcc.dg/vect/no-scevccp-pr86725-4.c: Likewise.

gcc/testsuite
	PR ada/115250
	* gnat.dg/opt58_pkg.ads: Convert to Unix line ending.
	* gnat.dg/opt58.adb: Likewise and pass -gnatws to the compiler.

gcc/testsuite
	PR ada/115246
	* gnat.dg/alignment14.adb (My_Int2): Delete.
	(Arr2): Likewise.

I noticed this folding inside fab could be done else where and could
even improve inlining decisions and a few other things so let's
move it to fold_stmt.
It also fixes PR 116601 because places which call fold_stmt already
have to deal with the stmt becoming a non-throw statement.

For the fix for PR 116601 on the branches should be the original patch
rather than a backport of this one.

Bootstrapped and tested on x86_64-linux-gnu.

	PR tree-optimization/116601

gcc/ChangeLog:

	* gimple-fold.cc (optimize_memcpy_to_memset): Move
	from tree-ssa-ccp.cc and rename. Also return true
	if the optimization happened.
	(gimple_fold_builtin_memory_op): Call
	optimize_memcpy_to_memset.
	(fold_stmt_1): Call optimize_memcpy_to_memset for
	load/store copies.
	* tree-ssa-ccp.cc (optimize_memcpy): Delete.
	(pass_fold_builtins::execute): Remove code that
	calls optimize_memcpy.

gcc/testsuite/ChangeLog:

	* gcc.dg/pr78408-1.c: Adjust dump scan to match where
	the optimization now happens.
	* g++.dg/torture/except-2.C: New test.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

There was a reported regression on x86-64 with -march=cascadelake
and -m32 where epilogue vectorization causes a different number of
SLPed loops.  Fixed by disabling epilogue vectorization for the
testcase.

	* gcc.dg/vect/fast-math-vect-call-2.c: Disable epilogue
	vectorization.

The test as committed without the tree-vrp.cc change only FAILs with
FAIL: gcc.dg/pr116588.c scan-tree-dump-not vrp2 "0 != 0"
The DEBUG code in there was just to make it easier to debug, but doesn't
actually fail when the test is miscompiled.
We don't need such debugging code in simple tests like that, but it is
useful if they abort when miscompiled.

With this patch without the tree-vrp.cc change I see
FAIL: gcc.dg/pr116588.c execution test
FAIL: gcc.dg/pr116588.c scan-tree-dump-not vrp2 "0 != 0"
and with it it passes.

2024-09-09  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/116588
	* gcc.dg/pr116588.c: Remove -DDEBUG from dg-options.
	(main): Remove debugging code and simplify.

Match: Fix ordered and nonequal: Fix 'gcc.dg/opt-ordered-and-nonequal-1.c' re 'LOGICAL_OP_NON_SHORT_CIRCUIT' [PR116635]

Fix up to make 'gcc.dg/opt-ordered-and-nonequal-1.c' of
commit 91421e21
"Match: Fix ordered and nonequal" work for default
'LOGICAL_OP_NON_SHORT_CIRCUIT == false' configurations.

	PR testsuite/116635
	gcc/testsuite/
	* gcc.dg/opt-ordered-and-nonequal-1.c: Fix re
	'LOGICAL_OP_NON_SHORT_CIRCUIT'.

This small cleanup removes a redundant check for gimple_assign_cast_p and reformats
based on that. Also changes the if statement that checks if the integral type and the
check to see if the constant fits into the new type such that it returns null
and reformats based on that.

Also moves the check for has_single_use earlier so it is less complex still a cheaper
check than some of the others (like the check on the integer side).

This was noticed when adding a few new things to factor_out_conditional_operation
but those are not ready to submit yet.

Note there are no functional difference with this change.

Bootstrapped and tested on x86_64-linux-gnu.

gcc/ChangeLog:

	* tree-ssa-phiopt.cc (factor_out_conditional_operation): Move the has_single_use
	checks much earlier. Remove redundant check for gimple_assign_cast_p.
	Change around the check if the integral consts fits into the new type.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

This patch will add those recent aliased CPU names into documentation
for clearness.

gcc/ChangeLog:

	PR target/116617
	* doc/invoke.texi: Add meteorlake, raptorlake and lunarlake.

Don't use temp for a PARALLEL BLKmode argument of an EXPR_LIST expression
in a TImode register.  Otherwise, the TImode variable will be put in
the GPR save area which guarantees only 8-byte alignment.

gcc/

	PR target/116621
	* config/i386/i386.cc (ix86_gimplify_va_arg): Don't use temp for
	a PARALLEL BLKmode container of an EXPR_LIST expression in a
	TImode register.

gcc/testsuite/

	PR target/116621
	* gcc.target/i386/pr116621.c: New test.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>

Cache the source files as they are read, rather than discarding them at
the end of output_lines (), and move the reading of the source file to
the new function slurp.

This patch does not really change anything other than moving the file
reading out of output_file, but set gcov up for more interaction with
the source file. The motvating example is reporting coverage on
functions from different source files, notably C++ headers and
((always_inline)).

Here is an example of what gcov does today:

hello.h:
inline __attribute__((always_inline))
int hello (const char *s)
{
  if (s)
    printf ("hello, %s!\n", s);
  else
    printf ("hello, world!\n");
  return 0;
}

hello.c:
int notmain(const char *entity)
{
  return hello (entity);
}

int main()
{
  const char *empty = 0;
  if (!empty)
    hello (empty);
  else
    puts ("Goodbye!");
}

$ gcov -abc hello
function notmain called 0 returned 0% blocks executed 0%
    #####:    4:int notmain(const char *entity)
    %%%%%:    4-block 2
branch  0 never executed (fallthrough)
branch  1 never executed
        -:    5:{
    #####:    6:  return hello (entity);
    %%%%%:    6-block 7
        -:    7:}

Clearly there is a branch in notmain, but the branch comes from the
inlining of hello. This is not very obvious from looking at the output.
Here is hello.h.gcov:

        -:    3:inline __attribute__((always_inline))
        -:    4:int hello (const char *s)
        -:    5:{
    #####:    6:  if (s)
    %%%%%:    6-block 3
branch  0 never executed (fallthrough)
branch  1 never executed
    %%%%%:    6-block 2
branch  2 never executed (fallthrough)
branch  3 never executed
    #####:    7:    printf ("hello, %s!\n", s);
    %%%%%:    7-block 4
call    0 never executed
    %%%%%:    7-block 3
call    1 never executed
        -:    8:  else
    #####:    9:    printf ("hello, world!\n");
    %%%%%:    9-block 5
call    0 never executed
    %%%%%:    9-block 4
call    1 never executed
    #####:   10:  return 0;
    %%%%%:   10-block 6
    %%%%%:   10-block 5
        -:   11:}

The blocks from the different call sites have all been interleaved.

The reporting could tuned be to list the inlined function, too, like
this:

        1:    4:int notmain(const char *entity)
        -: == inlined from hello.h ==
        1:    6:  if (s)
branch  0 taken 0 (fallthrough)
branch  1 taken 1
    #####:    7:    printf ("hello, %s!\n", s);
    %%%%%:    7-block 3
call    0 never executed
        -:    8:  else
        1:    9:    printf ("hello, world!\n");
        1:    9-block 4
call    0 returned 1
        1:   10:  return 0;
        1:   10-block 5
        -: == inlined from hello.h (end) ==
        -:    5:{
        1:    6:  return hello (entity);
        1:    6-block 7
        -:    7:}

Implementing something to this effect relies on having the sources for
both files (hello.c, hello.h) available, which is what this patch sets
up.

Note that the previous reading code would leak the source file content,
and explicitly storing them is not a huge departure nor performance
implication. I verified this with valgrind:

With slurp:

$ valgrind gcov ./hello
== == Memcheck, a memory error detector
== == Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
== == Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
== == Command: ./gcc/gcov demo
== ==
File 'hello.c'
Lines executed:100.00% of 4
Creating 'hello.c.gcov'

File 'hello.h'
Lines executed:75.00% of 4
Creating 'hello.h.gcov'
== ==
== == HEAP SUMMARY:
== ==     in use at exit: 84,907 bytes in 54 blocks
== ==   total heap usage: 254 allocs, 200 frees, 137,156 bytes allocated
== ==
== == LEAK SUMMARY:
== ==    definitely lost: 1,237 bytes in 22 blocks
== ==    indirectly lost: 562 bytes in 18 blocks
== ==      possibly lost: 0 bytes in 0 blocks
== ==    still reachable: 83,108 bytes in 14 blocks
== ==                       of which reachable via heuristic:
== ==                         newarray           : 1,544 bytes in 1 blocks
== ==         suppressed: 0 bytes in 0 blocks
== == Rerun with --leak-check=full to see details of leaked memory
== ==
== == For lists of detected and suppressed errors, rerun with: -s
== == ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

Without slurp:

$ valgrind gcov ./demo
== == Memcheck, a memory error detector
== == Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
== == Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
== == Command: ./gcc/gcov demo
== ==
File 'hello.c'
Lines executed:100.00% of 4
Creating 'hello.c.gcov'

File 'hello.h'
Lines executed:75.00% of 4
Creating 'hello.h.gcov'

Lines executed:87.50% of 8
== ==
== == HEAP SUMMARY:
== ==     in use at exit: 85,316 bytes in 82 blocks
== ==   total heap usage: 250 allocs, 168 frees, 137,084 bytes allocated
== ==
== == LEAK SUMMARY:
== ==    definitely lost: 1,646 bytes in 50 blocks
== ==    indirectly lost: 562 bytes in 18 blocks
== ==      possibly lost: 0 bytes in 0 blocks
== ==    still reachable: 83,108 bytes in 14 blocks
== ==                       of which reachable via heuristic:
== ==                         newarray           : 1,544 bytes in 1 blocks
== ==         suppressed: 0 bytes in 0 blocks
== == Rerun with --leak-check=full to see details of leaked memory
== ==
== == For lists of detected and suppressed errors, rerun with: -s
== == ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

gcc/ChangeLog:

	* gcov.cc (release_structures): Release source_lines.
	(slurp): New function.
	(output_lines): Read sources with slurp.

Since this is a pure compile test it makes sense to inform dejagnu of
it.

gcc/testsuite/ChangeLog:

	* gcc.misc-tests/gcov-23.c: Use dg-compile, not gcc -c

This is a simple fix which adds the target supports requirement of int128
to the testcase too.

Pushed as obvious after testing to make sure the testcase is UNSUPPORTED now
with -m32 but working with -m64 on x86_64-linux-gnu.

gcc/testsuite/ChangeLog:

	* gcc.dg/pr116588.c: Require int128.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

We were silently accepting the pr65923.C specialization of std::swap with
the wrong exception specification; it should be declared noexcept.  Let's
limit ignoring mismatch with system headers to extern "C" functions so we
get a diagnostic for the C++ library.

In the case of an omitted exception-specification, let's also lower the
error to a pedwarn, and copy the missing spec over, to avoid a hard break
for code that accidentally relied on the old behavior.

...except extern "C" functions keep the new spec, to avoid breaking dubious
code like noexcept-type19.C.

gcc/cp/ChangeLog:

	* decl.cc (check_redeclaration_exception_specification): Remove
	OPT_Wsystem_headers from pedwarn when the old declaration is
	in a system header.  Also check std namespace.

gcc/testsuite/ChangeLog:

	* g++.dg/diagnostic/pr65923.C: Add noexcept.
	* g++.dg/cpp1z/aligned-new3.C: Expect pedwarn.
	* g++.dg/cpp1z/noexcept-type19.C: Add comment.

It was pointed out in https://gcc.gnu.org/pipermail/gcc-patches/2024-September/662183.html

,
that the wording with this print has too many words.
Fixed thusly.

Pushed as obvious after a build and test for x86_64-linux-gnu.

gcc/ChangeLog:

	* gimple-ssa-split-paths.cc (is_feasible_trace): Fix wording
	on the print.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

Here we correctly defer partial substitution into the lambda used as
a default template argument, but then incorrectly perform the full
substitution, because add_extra_args adds outer template arguments from
the full substitution that are not related to the original template
context of the lambda.  For example, the template depth of the first
lambda is 1 but add_extra_args return a set of args with 3 levels, with
the inner level corresponding to the parameters of v1 (good) and the
outer levels corresponding to those of A and B (bad).

For the cases that we're interested in, add_extra_args can assume that
the deferred args are a full set of template arguments, and so it
suffices to just substitute into the deferred args and not do any
additional merging.

This patch refines add_extra_args accordingly, and additionally
makes it look for the tf_partial flag instead of for dependent args to
decide if the deferred substitution is a partial one.  This reveals we
were neglecting to set tf_partial when substituting into a default
template argument in a template context.

	PR c++/116567

gcc/cp/ChangeLog:

	* pt.cc (coerce_template_parms): Set tf_partial when substituting
	into a default template argument in a template context.
	(build_extra_args): Set TREE_STATIC on the deferred args if this
	is a partial substitution.
	(add_extra_args): Check TREE_STATIC instead of dependence of args.
	Adjust merging behavior in that case.
	(tsubst_lammda_expr): Check for tf_partial instead of dependence
	of args when determining whether to defer substitution.
	(tsubst_expr) <case LAMBDA_EXPR>: Remove tf_partial early exit.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp2a/lambda-targ7.C: New test.

Reviewed-by: Jason Merrill <jason@redhat.com>

	PR tree-optimization/116588
	gcc/
	* tree-vrp.cc (execute_fast_vrp): Start with all edges executable.
	gcc/testsuite/
	* gcc.dg/pr116588.c: New.

This patch aims to add the missing instruction types to the XiangShan-Nanhu scheduler model.

The current XiangShan -Nanhu model lacks the trap, atomic trap, fcvt_i2f, and fcvt_f2i instructions.

The trap, atomic, and i2f instructions belong to xs_jmp_rs. [1]

The f2i instruction belongs to xs_fmisc_rs.[2]

[1]
https://github.com/OpenXiangShan/XiangShan/blob/v2.0/src/main/scala/xiangshan/package.scala#L780

[2]
https://github.com/OpenXiangShan/XiangShan/blob/v2.0/src/main/scala/xiangshan/backend/decode/DecodeUnit.scala#L290

gcc/ChangeLog:

	* config/riscv/xiangshan.md: Add atomic, trap, fcvt_i2f, fcvt_f2i.

Since the THeadVector vsetvli does not support vl as an immediate, we
need to convert 0 to zero when outputting asm.

	PR target/116592

gcc/ChangeLog:

	* config/riscv/thead.cc (th_asm_output_opcode): Change '0' to
	"zero"

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/rvv/xtheadvector/pr116592.c: New test.

gcc/fortran/ChangeLog:

	* arith.cc (gfc_reduce_unsigned): New function.
	(gfc_arith_error): Add ARITH_UNSIGNED_TRUNCATED and
	ARITH_UNSIGNED_NEGATIVE.
	(gfc_arith_init_1): Initialize unsigned types.
	(gfc_check_unsigned_range): New function.
	(gfc_range_check): Handle unsigned types.
	(gfc_arith_uminus): Likewise.
	(gfc_arith_plus): Likewise.
	(gfc_arith_minus): Likewise.
	(gfc_arith_times): Likewise.
	(gfc_arith_divide): Likewise.
	(gfc_compare_expr): Likewise.
	(eval_intrinsic): Likewise.
	(gfc_int2int): Also convert unsigned.
	(gfc_uint2uint): New function.
	(gfc_int2uint): New function.
	(gfc_uint2int): New function.
	(gfc_uint2real): New function.
	(gfc_uint2complex): New function.
	(gfc_real2uint): New function.
	(gfc_complex2uint): New function.
	(gfc_log2uint): New function.
	(gfc_uint2log): New function.
	* arith.h (gfc_int2uint, gfc_uint2uint, gfc_uint2int, gfc_uint2real):
	Add prototypes.
	(gfc_uint2complex, gfc_real2uint, gfc_complex2uint, gfc_log2uint):
	Likewise.
	(gfc_uint2log): Likewise.
	* check.cc (gfc_boz2uint): New function
	(type_check2): New function.
	(int_or_real_or_unsigned_check): New function.
	(less_than_bitsizekind): Adjust for unsingeds.
	(less_than_bitsize2): Likewise.
	(gfc_check_allocated): Likewise.
	(gfc_check_mod): Likewise.
	(gfc_check_bge_bgt_ble_blt): Likewise.
	(gfc_check_bitfcn): Likewise.
	(gfc_check_digits): Likewise.
	(gfc_check_dshift): Likewise.
	(gfc_check_huge): Likewise.
	(gfc_check_iu): New function.
	(gfc_check_iand_ieor_ior): Adjust for unsigneds.
	(gfc_check_ibits): Likewise.
	(gfc_check_uint): New function.
	(gfc_check_ishft): Adjust for unsigneds.
	(gfc_check_ishftc): Likewise.
	(gfc_check_min_max): Likewise.
	(gfc_check_merge_bits): Likewise.
	(gfc_check_selected_int_kind): Likewise.
	(gfc_check_shift): Likewise.
	(gfc_check_mvbits): Likewise.
	(gfc_invalid_unsigned_ops): Likewise.
	* decl.cc (gfc_match_decl_type_spec): Likewise.
	* dump-parse-tree.cc (show_expr): Likewise.
	* expr.cc (gfc_get_constant_expr): Likewise.
	(gfc_copy_expr): Likewise.
	(gfc_extract_int): Likewise.
	(numeric_type): Likewise.
	* gfortran.h (enum arith): Extend with ARITH_UNSIGNED_TRUNCATED
	and ARITH_UNSIGNED_NEGATIVE.
	(enum gfc_isym_id): Extend with GFC_ISYM_SU_KIND and GFC_ISYM_UINT.
	(gfc_check_unsigned_range): New prototype-
	(gfc_arith_error): Likewise.
	(gfc_reduce_unsigned): Likewise.
	(gfc_boz2uint): Likewise.
	(gfc_invalid_unsigned_ops): Likewise.
	(gfc_convert_mpz_to_unsigned): Likewise.
	* gfortran.texi: Add some rudimentary documentation.
	* intrinsic.cc (gfc_type_letter): Adjust for unsigneds.
	(add_functions): Add uint and adjust functions to be called.
	(add_conversions): Add unsigned conversions.
	(gfc_convert_type_warn): Adjust for unsigned.
	* intrinsic.h (gfc_check_iu, gfc_check_uint, gfc_check_mod, gfc_simplify_uint,
	gfc_simplify_selected_unsigned_kind, gfc_resolve_uint): New prototypes.
	* invoke.texi: Add -funsigned.
	* iresolve.cc (gfc_resolve_dshift): Handle unsigneds.
	(gfc_resolve_iand): Handle unsigneds.
	(gfc_resolve_ibclr): Handle unsigneds.
	(gfc_resolve_ibits): Handle unsigneds.
	(gfc_resolve_ibset): Handle unsigneds.
	(gfc_resolve_ieor): Handle unsigneds.
	(gfc_resolve_ior): Handle unsigneds.
	(gfc_resolve_uint): Handle unsigneds.
	(gfc_resolve_merge_bits): Handle unsigneds.
	(gfc_resolve_not): Handle unsigneds.
	* lang.opt: Add -funsigned.
	* libgfortran.h: Add BT_UNSIGNED.
	* match.cc (gfc_match_type_spec): Match UNSIGNED.
	* misc.cc (gfc_basic_typename): Add UNSIGNED.
	(gfc_typename): Likewise.
	* primary.cc (convert_unsigned): New function.
	(match_unsigned_constant): New function.
	(gfc_match_literal_constant): Handle unsigned.
	* resolve.cc (resolve_operator): Handle unsigned.
	(resolve_ordinary_assign): Likewise.
	* simplify.cc (convert_mpz_to_unsigned): Renamed to...
	(gfc_convert_mpz_to_unsigned): and adjusted.
	(gfc_simplify_bit_size): Adjusted for unsigned.
	(compare_bitwise): Likewise.
	(gfc_simplify_bge): Likewise.
	(gfc_simplify_bgt): Likewise.
	(gfc_simplify_ble): Likewise.
	(gfc_simplify_blt): Likewise.
	(simplify_cmplx): Likewise.
	(gfc_simplify_digits): Likewise.
	(simplify_dshift): Likewise.
	(gfc_simplify_huge): Likewise.
	(gfc_simplify_iand): Likewise.
	(gfc_simplify_ibclr): Likewise.
	(gfc_simplify_ibits): Likewise.
	(gfc_simplify_ibset): Likewise.
	(gfc_simplify_ieor): Likewise.
	(gfc_simplify_uint): Likewise.
	(gfc_simplify_ior): Likewise.
	(simplify_shift): Likewise.
	(gfc_simplify_ishftc): Likewise.
	(gfc_simplify_merge_bits): Likewise.
	(min_max_choose): Likewise.
	(gfc_simplify_mod): Likewise.
	(gfc_simplify_modulo): Likewise.
	(gfc_simplify_popcnt): Likewise.
	(gfc_simplify_range): Likewise.
	(gfc_simplify_selected_unsigned_kind): Likewise.
	(gfc_convert_constant): Likewise.
	* target-memory.cc (size_unsigned): New function.
	(gfc_element_size): Adjust for unsigned.
	* trans-const.h (gfc_conv_mpz_unsigned_to_tree): Add prototype.
	* trans-const.cc (gfc_conv_mpz_unsigned_to_tree): Handle unsigneds.
	(gfc_conv_constant_to_tree): Likewise.
	* trans-decl.cc (gfc_conv_cfi_to_gfc): Put in "not yet implemented".
	* trans-expr.cc (gfc_conv_gfc_desc_to_cfi_desc): Likewise.
	* trans-stmt.cc (gfc_trans_integer_select): Handle unsigned.
	(gfc_trans_select): Likewise.
	* trans-intrinsic.cc (gfc_conv_intrinsic_mod): Handle unsigned.
	(gfc_conv_intrinsic_shift): Likewise.
	(gfc_conv_intrinsic_function): Add GFC_ISYM_UINT.
	* trans-io.cc (enum iocall): Add IOCALL_X_UNSIGNED and IOCALL_X_UNSIGNED_WRITE.
	(gfc_build_io_library_fndecls): Add transfer_unsigned and transfer_unsigned_write.
	(transfer_expr): Handle unsigneds.
	* trans-types.cc (gfc_unsinged_kinds): New array.
	(gfc_unsigned_types): Likewise.
	(gfc_init_kinds): Handle them.
	(validate_unsigned): New function.
	(gfc_validate_kind): Use it.
	(gfc_build_unsigned_type): New function.
	(gfc_init_types): Use it.
	(gfc_get_unsigned_type): New function.
	(gfc_typenode_for_spec): Handle unsigned.
	* trans-types.h (gfc_get_unsigned_type): New prototype.

libgfortran/ChangeLog:

	* gfortran.map: Add _gfortran_transfer_unsgned and
	_gfortran_transfer-signed.
	* io/io.h (set_unsigned): New prototype.
	(us_max): New prototype.
	(read_decimal_unsigned): New prototype.
	(write_iu): New prototype.
	* io/list_read.c (convert_unsigned): New function.
	(read_integer): Also handle unsigneds.
	(list_formatted_read_scalar): Handle unsigneds.
	(nml_read_obj): Likewise.
	* io/read.c (set_unsigned): New function.
	(us_max): New function.
	(read_utf8): Whitespace fixes.
	(read_default_char1): Whitespace fixes.
	(read_a_char4): Whitespace fixes.
	(next_char): Whiltespace fixes.
	(read_decimal_unsigned): New function.
	(read_f): Whitespace fixes.
	(read_x): Whitespace fixes.
	* io/transfer.c (transfer_unsigned): New function.
	(transfer_unsigned_write): New function.
	(require_one_of_two_types): New function.
	(formatted_transfer_scalar_read): Use it.
	(formatted_transfer_scalar_write): Also use it.
	* io/write.c (write_decimal_unsigned): New function.
	(write_iu): New function.
	(write_unsigned): New function.
	(list_formatted_write_scalar): Adjust for unsigneds.
	* libgfortran.h (GFC_UINTEGER_1_HUGE): Define.
	(GFC_UINTEGER_2_HUGE): Define.
	(GFC_UINTEGER_4_HUGE): Define.
	(GFC_UINTEGER_8_HUGE): Define.
	(GFC_UINTEGER_16_HUGE): Define.
	(HAVE_GFC_UINTEGER_1): Undefine (done by mk-kind-h.sh)
	(HAVE_GFC_UINTEGER_4): Likewise.
	* mk-kinds-h.sh: Add GFC_UINTEGER_*_HUGE.

gcc/testsuite/ChangeLog:

	* gfortran.dg/unsigned_1.f90: New test.
	* gfortran.dg/unsigned_10.f90: New test.
	* gfortran.dg/unsigned_11.f90: New test.
	* gfortran.dg/unsigned_12.f90: New test.
	* gfortran.dg/unsigned_13.f90: New test.
	* gfortran.dg/unsigned_14.f90: New test.
	* gfortran.dg/unsigned_15.f90: New test.
	* gfortran.dg/unsigned_16.f90: New test.
	* gfortran.dg/unsigned_17.f90: New test.
	* gfortran.dg/unsigned_18.f90: New test.
	* gfortran.dg/unsigned_19.f90: New test.
	* gfortran.dg/unsigned_2.f90: New test.
	* gfortran.dg/unsigned_20.f90: New test.
	* gfortran.dg/unsigned_21.f90: New test.
	* gfortran.dg/unsigned_22.f90: New test.
	* gfortran.dg/unsigned_23.f90: New test.
	* gfortran.dg/unsigned_24.f: New test.
	* gfortran.dg/unsigned_3.f90: New test.
	* gfortran.dg/unsigned_4.f90: New test.
	* gfortran.dg/unsigned_5.f90: New test.
	* gfortran.dg/unsigned_6.f90: New test.
	* gfortran.dg/unsigned_7.f90: New test.
	* gfortran.dg/unsigned_8.f90: New test.
	* gfortran.dg/unsigned_9.f90: New test.

cat abc.C
  #define A(n) struct T##n {} t##n;
  #define B(n) A(n##0) A(n##1) A(n##2) A(n##3) A(n##4) A(n##5) A(n##6) A(n##7) A(n##8) A(n##9)
  #define C(n) B(n##0) B(n##1) B(n##2) B(n##3) B(n##4) B(n##5) B(n##6) B(n##7) B(n##8) B(n##9)
  #define D(n) C(n##0) C(n##1) C(n##2) C(n##3) C(n##4) C(n##5) C(n##6) C(n##7) C(n##8) C(n##9)
  #define E(n) D(n##0) D(n##1) D(n##2) D(n##3) D(n##4) D(n##5) D(n##6) D(n##7) D(n##8) D(n##9)
  E(1) E(2) E(3)
  int main () { return 0; }
./xg++ -B ./ -o abc{.o,.C} -flto -flto-partition=1to1 -O2 -g -fdebug-types-section -c
./xgcc -B ./ -o abc{,.o} -flto -flto-partition=1to1 -O2
(not included in testsuite as it takes a while to compile) FAILs with
lto-wrapper: fatal error: Too many copied sections: Operation not supported
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status

The following patch fixes that.  Most of the 64K+ section support for
reading and writing was already there years ago (and especially reading used
quite often already) and a further bug fixed in it in the PR104617 fix.

Yet, the fix isn't solely about removing the
  if (new_i - 1 >= SHN_LORESERVE)
    {
      *err = ENOTSUP;
      return "Too many copied sections";
    }
5 lines, the missing part was that the function only handled reading of
the .symtab_shndx section but not copying/updating of it.
If the result has less than 64K-epsilon sections, that actually wasn't
needed, but e.g. with -fdebug-types-section one can exceed that pretty
easily (reported to us on WebKitGtk build on ppc64le).
Updating the section is slightly more complicated, because it basically
needs to be done in lock step with updating the .symtab section, if one
doesn't need to use SHN_XINDEX in there, the section should (or should be
updated to) contain SHN_UNDEF entry, otherwise needs to have whatever would
be overwise stored but couldn't fit.  But repeating due to that all the
symtab decisions what to discard and how to rewrite it would be ugly.

So, the patch instead emits the .symtab_shndx section (or sections) last
and prepares the content during the .symtab processing and in a second
pass when going just through .symtab_shndx sections just uses the saved
content.

2024-09-07  Jakub Jelinek  <jakub@redhat.com>

	PR lto/116614
	* simple-object-elf.c (SHN_COMMON): Align comment with neighbouring
	comments.
	(SHN_HIRESERVE): Use uppercase hex digits instead of lowercase for
	consistency.
	(simple_object_elf_find_sections): Formatting fixes.
	(simple_object_elf_fetch_attributes): Likewise.
	(simple_object_elf_attributes_merge): Likewise.
	(simple_object_elf_start_write): Likewise.
	(simple_object_elf_write_ehdr): Likewise.
	(simple_object_elf_write_shdr): Likewise.
	(simple_object_elf_write_to_file): Likewise.
	(simple_object_elf_copy_lto_debug_section): Likewise.  Don't fail for
	new_i - 1 >= SHN_LORESERVE, instead arrange in that case to copy
	over .symtab_shndx sections, though emit those last and compute their
	section content when processing associated .symtab sections.  Handle
	simple_object_internal_read failure even in the .symtab_shndx reading
	case.