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Add warnings for the use of zero as a null pointer constant to the C FE.
PR c/117059
gcc/c-family/ChangeLog:
* c.opt (Wzero-as-null-pointer-constant): Enable for C and ObjC.
gcc/c/ChangeLog:
* c-typeck.cc (parse_build_binary_op): Add warning.
(build_conditional_expr): Add warning.
(convert_for_assignment): Add warning.
gcc/ChangeLog:
* doc/invoke.texi (Wzero-as-null-pointer-constant): Adapt
description.
gcc/testsuite/ChangeLog:
* gcc.dg/Wzero-as-null-pointer-constant.c: New test.
Suggested-by: Alejandro Colomar <alx@kernel.org>
Acked-by: Alejandro Colomar <alx@kernel.org>
Reviewed-by: Joseph Myers <josmyers@redhat.com>
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C23 roughly says that {d,D}{32,64,128} floating point constant suffixes
are alternate spellings of {df,dd,dl} suffixes in annex H.
So, the following patch allows that alternate spelling.
Or is it intentional it isn't enabled and we need to do everything in
there first before trying to define __STDC_IEC_60559_DFP__?
Like add support for _Decimal32x and _Decimal64x types (including
the d32x and d64x suffixes) etc.
2024-11-13 Jakub Jelinek <jakub@redhat.com>
libcpp/
* expr.cc (interpret_float_suffix): Handle d32 and D32 suffixes
for C like df, d64 and D64 like dd and d128 and D128 like
dl.
gcc/c-family/
* c-lex.cc (interpret_float): Subtract 3 or 4 from copylen
rather than 2 if last character of CPP_N_DFLOAT is a digit.
gcc/testsuite/
* gcc.dg/dfp/c11-constants-3.c: New test.
* gcc.dg/dfp/c11-constants-4.c: New test.
* gcc.dg/dfp/c23-constants-3.c: New test.
* gcc.dg/dfp/c23-constants-4.c: New test.
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Forgot this in the -fmodules patch (r15-5112).
gcc/c-family/ChangeLog:
* c.opt.urls: Regenerate.
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The C++ modules support is not targeting the Modules TS, so it doesn't make
much sense to refer to the TS in the option name. But keep the old spelling
as an undocumented alias for now.
gcc/ChangeLog:
* doc/invoke.texi: Rename -fmodules-ts to -fmodules.
gcc/c-family/ChangeLog:
* c.opt: Add -fmodules with same effect as -fmodules-ts.
gcc/cp/ChangeLog:
* lang-specs.h: Check fmodules* instead of fmodules-ts.
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clang++ adds __builtin_operator_{new,delete} builtins which as documented
work similarly to ::operator {new,delete}, except that it is an error
if the called ::operator {new,delete} is not a replaceable global operator
and allow optimizations which C++ normally allows just when those are used
from new/delete expressions https://eel.is/c++draft/expr.new#14
When using these builtins, the same optimizations can be done even when
using those builtins.
For GCC we note that in the CALL_FROM_NEW_OR_DELETE_P flag on CALL_EXPRs.
The following patch implements it as a C++ FE keyword (because passing
references through ... changes the argument and so BUILT_IN_FRONTEND
builtin can't be used), just attempts to call the ::operator {new,delete}
and if it isn't replaceable, diagnoses it.
libstdc++ already uses the builtin in some cases.
2024-11-11 Jakub Jelinek <jakub@redhat.com>
gcc/c-family/
* c-common.h (enum rid): Add RID_BUILTIN_OPERATOR_NEW
and RID_BUILTIN_OPERATOR_DELETE.
(names_builtin_p): Change return type from bool to int.
* c-common.cc (c_common_reswords): Add __builtin_operator_new
and __builtin_operator_delete.
gcc/c/
* c-decl.cc (names_builtin_p): Change return type from
bool to int, adjust return statments.
gcc/cp/
* parser.cc (cp_parser_postfix_expression): Handle
RID_BUILTIN_OPERATOR_NEW and RID_BUILTIN_OPERATOR_DELETE.
* cp-objcp-common.cc (names_builtin_p): Change return type from
bool to int, adjust return statments. Handle
RID_BUILTIN_OPERATOR_NEW and RID_BUILTIN_OPERATOR_DELETE.
* pt.cc (tsubst_expr) <case CALL_EXPR>: Handle
CALL_FROM_NEW_OR_DELETE_P.
gcc/
* doc/extend.texi (New/Delete Builtins): Document
__builtin_operator_new and __builtin_operator_delete.
gcc/testsuite/
* g++.dg/ext/builtin-operator-new-1.C: New test.
* g++.dg/ext/builtin-operator-new-2.C: New test.
* g++.dg/ext/builtin-operator-new-3.C: New test.
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Until now, the structures that keep pragma information were different
when in preprocessing only mode and in normal mode. This change unifies
both so that the space and name of a pragma are always registered and
can be queried easily at a later time.
gcc/c-family/ChangeLog:
* c-pragma.cc (struct pragma_pp_data): Use (struct internal_pragma_handler);
(c_register_pragma_1): Always register name and space for all pragmas.
(c_invoke_pragma_handler): Adapt.
(c_invoke_early_pragma_handler): Likewise.
(c_pp_invoke_early_pragma_handler): Likewise.
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Now that C++23 has been finally published, the following patch attempts
to mention it in the option descriptions and documentation.
Given that it has been published about 1.5 years after being finalized
and has the 14882:2024 document number pair rather than :2023, I wasn't
sure when exactly to use 2023 (as informal name) and when 2024 (as year
of publishing), so I've tried to use 2024 in standards.texi which talks
more formally about the standards and a note that it has been published
in 2024 when it is talked about more informally.
I remember at least one older edition has been published in January too,
but the ISO pages pretend it was published still in December of the previous
year, in this case it doesn't.
2024-11-01 Jakub Jelinek <jakub@redhat.com>
gcc/
* doc/standards.texi (C++ Language): Mention also the 2024
revision and -std=gnu++23 option.
* doc/invoke.texi (-std=): Adjust description of c++23, c++2b,
gnu++23 and gnu++2b now that ISO C++ 14882:2024 is published.
gcc/c-family/
* c.opt (std=c++2b, std=c++23, std=gnu++2b, std=gnu++23): Adjust
description now that ISO C++ 14882:2024 is published.
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This fixes two cases where variably-modified types were not recognized as
such. The first is when building composite types and the other when a type
is reconstructed for the 'vector' attribute. Construction of types in
the C FE is reorganized to use c_build_* functions which are responsible for
setting C_TYPE_VARIABLE_SIZE, C_TYPE_VARIABLY_MODIFIED and TYPE_TYPELESS_STORAGE
based on the properties of the type itself and these replace all other logic
elsewhere (e.g. in grokdeclarator). A new 'c_reconstruct_complex_type' based
on these functions is introduced which is called via a language hook when the
'vector' attribute is processed (as for C++).
One problem is are arrays of unspecified size 'T[*]' which were represented
identically to zero-sized arrays but with C_TYPE_VARIABLE_SIZE set. To avoid
having to create distinct type copies for this, the representation was changed
to make it a natural VLA by giving it an upper bound of '(0, 0)'. This also
then allows fixing of PR100420 where such arrays were printed as 'T[0]'.
Finally, a new function 'c_verify_type' checks consistency of properties
specific to C FE and is called when checking is on.
PR c/117145
PR c/117245
PR c/100420
gcc/c/ChangeLog:
* c-decl.cc (c_build_pointer_type): Move to c-typeck.cc
(grokdeclarator): Simplify logic.
(match_builtin_function_types): Adapt.
(push_decl): Adapt.
(implicitly_declare): Adapt.
(c_update_type_canonical): Adapt.
(c_make_fname_decl): Adapt.
(start_function): Adapt.
* c-objc-common.h: Add LANG_HOOKS_RECONSTRUCT_COMPLEX_TYPE.
* c-tree.h: Add prototypes.
* c-typeck.cc (c_verify_type): New function.
(c_set_type_bits). New function.
(c_build_pointer_type): Moved from c-decl.cc.
(c_build_pointer_type_for_mode): New function.
(c_build_function_type): New function.
(c_build_array_type): New function.
(c_build_type_attribute_variant): New function.
(c_reconstruct_complex_type): New function.
(c_build_functype_attribute_variant): Renamed.
(array_to_pointer_conversion): Simplify logic.
(composite_type_internal): Simplify logic..
(build_unary_op): Simplify logic..
(comptypes_verify): Add checking assertions.
(c_build_qualified_type): Add checking assertions.
(c_build_function_call_vec): Adapt.
(qualify_type): Adapt.
(build_functype_attribute_variant): Adapt.
(common_pointer_type): Adapt.
(c_common_type): Adapt.
(convert_for_assignment): Adapt.
(type_or_builtin_type): Adapt.
(build_access_with_size_for_counted_by): Adapt.
(build_conditional_expr): Adapt.
(build_modify_expr): Adapt.
(build_binary_op): Adapt.
(build_omp_array_section): Adapt.
(handle_omp_array_sections): Adapt.
(c_finish_omp_clauses): Adapt.
* c-parser.cc (c_parser_typeof_specifier): Adapt.
(c_parser_generic_selection): Adapt.
gcc/c-family/ChangeLog:
* c-pretty-print.cc (c_pretty_printer::direct_abstract_declarator):
Detect arrays of unspecified size.
gcc/testsuite/ChangeLog:
* gcc.dg/c23-tag-composite-11.c: New test.
* gcc.dg/Warray-parameter-4.c: Resolve xfails.
* gcc.dg/Wvla-parameter-2.c: Resolve xfails.
* gcc.dg/Wvla-parameter-3.c: Resolve xfails.
* gcc.dg/pr117145-1.c: New test.
* gcc.dg/pr117145-2.c: New test.
* gcc.dg/pr117245.c: New test.
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Since C23 support is substantially feature-complete, update
documentation to no longer refer to it as experimental and incomplete.
Bootstrapped with no regressions for x86_64-pc-linux-gnu.
gcc/
* doc/cpp.texi (__STDC_VERSION__): Do not refer to C23 support as
experimental.
* doc/invoke.texi (std=c23, std=gnu23): Do not document as
experimental and incomplete.
* doc/standards.texi: Do not refer to C23 support as experimental
and incomplete.
gcc/c-family/
* c.opt (std=c23, std=gnu23, std=iso9899:2024): Do not mark as
experimental and incomplete.
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The following patch adds the C2Y N3370 paper support.
We had the case ranges as a GNU extension for decades, so this patch
simply:
1) adds different diagnostics when it is used in C (depending on flag_isoc2y
and pedantic and warn_c23_c2y_compat)
2) emits a pedwarn in C if in a range conversion changes the value of
the low or high bounds and in that case doesn't emit -Woverflow and
similar warnings anymore if the pedwarn has been diagnosed
3) changes the handling of empty ranges both in C and C++; previously
we just warned but let the values be still looked up in the splay
tree/entered into it (and let only gimplification throw away those
empty cases), so e.g. case -6 ... -8: break; case -6: break;
complained about duplicate case label. But that actually isn't
duplicate case label, case -6 ... -8: stands for nothing at all
and that is how it is treated later on (thrown away)
2024-10-30 Jakub Jelinek <jakub@redhat.com>
PR c/117021
gcc/c-family/
* c-common.cc (c_add_case_label): Emit different diagnostics for C
on case ranges. Diagnose for C using pedwarn conversions of range
expressions changing value and don't emit further conversion
diagnostics if the pedwarn has been diagnosed. For empty ranges
bail out after emitting warning, don't add anything into splay
trees nor add a CASE_LABEL_EXPR.
gcc/testsuite/
* gcc.dg/switch-6.c: Expect different diagnostics. Add -std=gnu23
to dg-options.
* gcc.dg/switch-7.c: Expect different diagnostics. Add -std=c23
to dg-options.
* gcc.dg/gnu23-switch-1.c: New test.
* gcc.dg/gnu23-switch-2.c: New test.
* gcc.dg/c23-switch-1.c: New test.
* gcc.dg/c2y-switch-1.c: New test.
* gcc.dg/c2y-switch-2.c: New test.
* gcc.dg/c2y-switch-3.c: New test.
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This patch generalizes diagnostic_context so that rather than having
a single output format, it has a vector of zero or more.
It adds new two options:
-fdiagnostics-add-output=DIAGNOSTICS-OUTPUT-SPEC
-fdiagnostics-set-output=DIAGNOSTICS-OUTPUT-SPEC
which both take a new configuration syntax of the form SCHEME ("text" or
"sarif"), optionally followed by ":" and one or more KEY=VALUE pairs,
in this form:
<SCHEME>
<SCHEME>:<KEY>=<VALUE>
<SCHEME>:<KEY>=<VALUE>,<KEY2>=<VALUE2>
...etc
where each SCHEME supports some set of keys. For example, it's now
possible to use:
-fdiagnostics-add-output=sarif:version=2.1,file=foo.2.1.sarif \
-fdiagnostics-add-output=sarif:version=2.2-prerelease,file=foo.2.2.sarif
to add a pair of outputs, each writing to a different file, using
versions 2.1 and 2.2 of the SARIF standard respectively, whilst also
emitting the classic text form of the diagnostics to stderr.
I hope the new syntax gives us room to potentially add new kinds of
output sink in the future (e.g. RPC notifications), and to add new
key/value pairs as needed by the different sinks.
Implementation-wise, the diagnostic_context's m_printer which previously
was used directly by the single output format now becomes a "reference
printer", created by the client (such as the frontend), with defaults
modified by command-line options. Each of the multiple output sinks has
its own pretty_printer instance, created by cloning the context's
reference printer.
gcc/ChangeLog:
PR other/116613
* Makefile.in (OBJS-libcommon-target): Add opts-diagnostic.o.
* common.opt (fdiagnostics-add-output=): New.
(fdiagnostics-set-output=): New.
(diagnostics_output_format): Drop sarif-file-2.2-prerelease from
enum.
* common.opt.urls: Regenerate.
* diagnostic-buffer.h (diagnostic_buffer::~diagnostic_buffer): New.
(diagnostic_buffer::ensure_per_format_buffer): Rename to...
(diagnostic_buffer::ensure_per_format_buffers): ...this.
(diagnostic_buffer::m_per_format_buffer): Replace with...
(diagnostic_buffer::m_per_format_buffers): ...this, updating type.
* diagnostic-format-json.cc (json_output_format::update_printer):
New.
(json_output_format::follows_reference_printer_p): New.
(diagnostic_output_format_init_json): Drop redundant call to
set_path_format, as this is not a text output format.
* diagnostic-format-sarif.cc: Include "diagnostic-format-text.h".
(sarif_builder::set_printer): New.
(sarif_builder::sarif_builder): Add "printer" param and use it for
m_printer.
(sarif_builder::make_location_object::escape_nonascii_renderer::render):
Rather than using dc.m_printer, create a
diagnostic_text_output_format instance and use its printer.
(sarif_output_format::follows_reference_printer_p): New.
(sarif_output_format::update_printer): New.
(sarif_output_format::sarif_output_format): Pass in correct
printer to m_builder's ctor.
(diagnostic_output_format_init_sarif): Drop redundant call to
set_path_format, as this is not a text output format. Replace
calls to pp_show_color and set_token_printer with call to
update_printer. Drop redundant call to set_show_highlight_colors,
as this printer does not show colors.
(diagnostic_output_format_init_sarif_file): Split out file opening
into...
(diagnostic_output_format_open_sarif_file): ...this new function.
(make_sarif_sink): New.
(selftest::test_make_location_object): Provide a pp for the
builder.
* diagnostic-format-sarif.h
(diagnostic_output_format_open_sarif_file): New decl.
(make_sarif_sink): New decl.
* diagnostic-format-text.cc (diagnostic_text_output_format::dump):
Dump sm_follows_reference_printer.
(diagnostic_text_output_format::on_report_verbatim): New.
(diagnostic_text_output_format::follows_reference_printer_p): New.
(diagnostic_text_output_format::update_printer): New.
* diagnostic-format-text.h
(diagnostic_text_output_format::diagnostic_text_output_format):
Add optional "follows_reference_printer" param.
(diagnostic_text_output_format::on_report_verbatim): New decl.
(diagnostic_text_output_format::after_diagnostic): Drop "final".
(diagnostic_text_output_format::follows_reference_printer_p): New
decl.
(class diagnostic_text_output_format): Convert private members to
protected.
(diagnostic_text_output_format::m_follows_reference_printer): New
field.
* diagnostic-format.h
(diagnostic_output_format::on_report_verbatim): New vfunc.
(diagnostic_output_format::follows_reference_printer_p): New vfunc.
(diagnostic_output_format::update_printer): New vfunc.
(diagnostic_output_format::get_printer): Use m_printer rather than
a printer from m_context.
(diagnostic_output_format::diagnostic_output_format): Initialize
m_printer by cloning the context's printer.
(diagnostic_output_format::m_printer): New field.
* diagnostic-global-context.cc (verbatim): Reimplement in terms of
global_dc->report_verbatim, moving existing implementation to
diagnostic_text_output_format::on_report_verbatim.
(fnotice): Support multiple output sinks by using a new
global_dc->supports_fnotice_on_stderr_p.
* diagnostic-output-file.h
(diagnostic_output_file::diagnostic_output_file): New default ctor.
(diagnostic_output_file::operator=): Implement move assignment.
* diagnostic-path.cc (selftest::test_interprocedural_path_1): Pass
false for new param of text_output's ctor.
* diagnostic-show-locus.cc
(selftest::test_layout_x_offset_display_utf8): Use reference
printer.
(selftest::test_layout_x_offset_display_tab): Likewise.
(selftest::test_one_liner_fixit_remove): Likewise.
* diagnostic.cc: Include "pretty-print-urlifier.h".
(diagnostic_set_caret_max_width): Update for global_dc's m_printer
becoming reference printer.
(diagnostic_context::initialize): Update for m_printer becoming
m_reference_printer. Use ::make_unique to create it. Update for
m_output_format becoming m_output_sinks.
(diagnostic_context::color_init): Update the reference printer,
then update the printers for any output sinks that follow it.
(diagnostic_context::urls_init): Likewise.
(diagnostic_context::finish): Update comment. Update for
m_output_format becoming m_output_sinks. Update for m_printer
becoming m_reference_printer and use "delete" on it rather than
XDELETE.
(diagnostic_context::dump): Update for m_printer becoming
reference printer, and for multiple output sinks.
(diagnostic_context::set_output_format): Reimplement for
supporting multiple output sinks.
(diagnostic_context::get_output_format): Likewise.
(diagnostic_context::add_sink): New.
(diagnostic_context::supports_fnotice_on_stderr_p): New.
(diagnostic_context::set_pretty_printer): New.
(diagnostic_context::refresh_output_sinks): New.
(diagnostic_context::set_format_decoder): New.
(diagnostic_context::set_show_highlight_colors): New.
(diagnostic_context::set_prefixing_rule): New.
(diagnostic_context::report_diagnostic): Update to support
multiple output sinks.
(diagnostic_context::report_verbatim): New.
(diagnostic_context::emit_diagram): Update to support multiple
output sinks.
(diagnostic_context::error_recursion): Update to use
m_reference_printer.
(fancy_abort): Likewise.
(diagnostic_context::end_group): Update to support multiple
output sinks.
(diagnostic_output_format::dump): Implement.
(diagnostic_output_format::on_report_verbatim): Likewise.
(diagnostic_output_format_init): Drop
DIAGNOSTICS_OUTPUT_FORMAT_SARIF_FILE_2_2_PRERELEASE.
(diagnostic_context::set_diagnostic_buffer): Reimplement to
support multiple output sinks.
(diagnostic_context::clear_diagnostic_buffer): Likewise.
(diagnostic_context::flush_diagnostic_buffer): Likewise.
(diagnostic_buffer::diagnostic_buffer): Initialize
m_per_format_buffers.
(diagnostic_buffer::~diagnostic_buffer): New dtor.
(diagnostic_buffer::dump): Reimplement to support multiple output
sinks.
(diagnostic_buffer::empty_p): Likewise.
(diagnostic_buffer::move_to): Likewise.
(diagnostic_buffer::ensure_per_format_buffer): Likewise, renaming
to...
(diagnostic_buffer::ensure_per_format_buffers): ...this.
* diagnostic.h
(DIAGNOSTICS_OUTPUT_FORMAT_SARIF_FILE_2_2_PRERELEASE): Delete.
(class diagnostic_context): Add friend class diagnostic_buffer.
(diagnostic_context::set_pretty_printer): New decl.
(diagnostic_context::refresh_output_sinks): New decl.
(diagnostic_context::report_verbatim): New decl.
(diagnostic_context::get_output_format): Drop.
(diagnostic_context::set_show_highlight_colors): Drop body.
(diagnostic_context::set_format_decoder): New decl.
(diagnostic_context::set_prefixing_rule): New decl.
(diagnostic_context::clone_printer): Reimplement.
(diagnostic_context::get_reference_printer): New accessor.
(diagnostic_context::add_sink): New decl.
(diagnostic_context::supports_fnotice_on_stderr_p): New decl.
(diagnostic_context::m_printer): Replace with...
(diagnostic_context::m_reference_printer): ...this, and make
private.
(diagnostic_context::m_output_format): Replace with...
(diagnostic_context::m_output_sinks): ...this.
(diagnostic_format_decoder): Delete.
(diagnostic_prefixing_rule): Delete.
(diagnostic_ready_p): Delete.
* doc/invoke.texi: Document -fdiagnostics-add-output= and
-fdiagnostics-set-output=.
* gcc.cc: Include "opts-diagnostic.h".
(driver_handle_option): Handle cases OPT_fdiagnostics_add_output_
and OPT_fdiagnostics_set_output_.
* opts-diagnostic.cc: New file.
* opts-diagnostic.h (handle_OPT_fdiagnostics_add_output_): New decl.
(handle_OPT_fdiagnostics_set_output_): New decl.
* opts-global.cc (init_options_once): Update for global_dc's
m_printer becoming reference printer. Call
global_dc->refresh_output_sinks.
* opts.cc (common_handle_option): Replace use of
diagnostic_prefixing_rule with dc->set_prefixing_rule. Handle
cases OPT_fdiagnostics_add_output_ and
OPT_fdiagnostics_set_output_. Update for m_printer becoming
reference printer.
* selftest-diagnostic.cc
(selftest::test_diagnostic_context::test_diagnostic_context):
Update for m_printer becoming reference printer.
(test_diagnostic_context::test_show_locus): Likewise.
* selftest-run-tests.cc (selftest::run_tests): Call
selftest::opts_diagnostic_cc_tests.
* selftest.h (selftest::opts_diagnostic_cc_tests): New decl.
* simple-diagnostic-path.cc
(selftest::simple_diagnostic_path_cc_tests): Use reference
printer.
* toplev.cc (announce_function): Update for global_dc's m_printer
becoming reference printer.
(toplev::main): Likewise.
* tree-diagnostic.cc (tree_diagnostics_defaults): Replace use of
diagnostic_format_decoder with context->set_format_decoder.
* tree-diagnostic.h
(tree_dump_pretty_printer::tree_dump_pretty_printer): Update for
global_dc's m_printer becoming reference printer.
* tree.cc (escaped_string::escape): Likewise.
(selftest::test_escaped_strings): Likewise.
gcc/ada/ChangeLog:
PR other/116613
* gcc-interface/misc.cc (internal_error_function): Update for
m_printer becoming reference printer.
gcc/analyzer/ChangeLog:
PR other/116613
* analyzer-language.cc (on_finish_translation_unit): Update for
m_printer becoming reference printer.
* engine.cc (run_checkers): Likewise.
* program-point.cc (function_point::print_source_line): Likewise.
gcc/c-family/ChangeLog:
PR other/116613
* c-format.cc (selftest::test_type_mismatch_range_labels): Update
for m_printer becoming reference printer.
(selftest::test_type_mismatch_range_labels): Likewise.
gcc/c/ChangeLog:
PR other/116613
* c-objc-common.cc: Include "make-unique.h".
(c_initialize_diagnostics): Use unique_ptr for pretty_printer.
Use context->set_format_decoder.
gcc/cp/ChangeLog:
PR other/116613
* error.cc (cxx_initialize_diagnostics): Use unique_ptr for
pretty_printer. Use context->set_format_decoder.
* module.cc (noisy_p): Update for global_dc's m_printer becoming
reference printer.
gcc/d/ChangeLog:
PR other/116613
* d-diagnostic.cc (d_diagnostic_report_diagnostic): Update for
m_printer becoming reference printer.
gcc/fortran/ChangeLog:
PR other/116613
* error.cc (gfc_diagnostic_build_kind_prefix): Update for
global_dc's m_printer becoming reference printer.
(gfc_diagnostics_init): Replace usage of diagnostic_format_decoder
with global_dc->set_format_decoder.
gcc/jit/ChangeLog:
PR other/116613
* dummy-frontend.cc: Include "make-unique.h".
(class jit_diagnostic_listener): New.
(jit_begin_diagnostic): Update comment.
(jit_end_diagnostic): Drop call to add_diagnostic.
(jit_langhook_init): Set the output format to a new
jit_diagnostic_listener.
* jit-playback.cc (playback::context::add_diagnostic): Add "text"
param and use that rather than trying to get the text from a
pretty_printer.
* jit-playback.h (playback::context::add_diagnostic): Add "text"
param.
gcc/testsuite/ChangeLog:
PR other/116613
* gcc.dg/plugin/analyzer_cpython_plugin.c (dump_refcnt_info):
Update for global_dc's m_printer becoming reference printer.
* gcc.dg/plugin/crash-test-ice-in-header-sarif-2.2.c: Replace usage
of -fdiagnostics-format=sarif-file-2.2-prerelease with
-fdiagnostics-set-output=sarif:version=2.2-prerelease.
* gcc.dg/plugin/diagnostic_plugin_test_paths.c: Update for
global_dc's m_printer becoming reference printer.
* gcc.dg/plugin/diagnostic_plugin_xhtml_format.c: Update for
changes to output formats.
* gcc.dg/plugin/expensive_selftests_plugin.c: Update for
global_dc's m_printer becoming reference printer.
* gcc.dg/sarif-output/add-output-sarif-defaults.c: New test.
* gcc.dg/sarif-output/bad-binary-op.c: New test.
* gcc.dg/sarif-output/bad-binary-op.py: New support script.
* gcc.dg/sarif-output/multiple-outputs.c: New test.
* gcc.dg/sarif-output/multiple-outputs.py: New support script.
* lib/scansarif.exp (verify-sarif-file): Add an optional second
argument specifying the expected filename of the .sarif file.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
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The following testcase ICEs, because
add_flexible_array_elts_to_size -> complete_array_type
is done only after braced_lists_to_strings which optimizes
RAW_DATA_CST surrounded by INTEGER_CST into a larger RAW_DATA_CST
covering even the boundaries, while I thought it is done before
that.
So, RAW_DATA_CST now can be the last constructor_elt in a CONSTRUCTOR
and so we need the function to take it into account (handle it as
RAW_DATA_CST standing for RAW_DATA_LENGTH consecutive elements).
The function wants to support both CONSTRUCTORs without indexes and with
them (for non-RAW_DATA_CST elts it was just adding 1 for the current
index). So, if the RAW_DATA_CST elt has ce->index, we need to add
RAW_DATA_LENGTH (ce->value) - 1, while if it doesn't (and it isn't cnt == 0
case where curindex is 0), add that plus 1, i.e. RAW_DATA_LENGTH (ce->value).
2024-10-29 Jakub Jelinek <jakub@redhat.com>
PR c/117313
gcc/c-family/
* c-common.cc (complete_array_type): For RAW_DATA_CST elements
advance curindex by RAW_DATA_LENGTH or one less than that if
ce->index is non-NULL. Handle even the first element if
it is RAW_DATA_CST. Formatting fix.
gcc/testsuite/
* c-c++-common/init-6.c: New test.
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I believe the new C2Y <stdbit.h> type-generic functions
stdc_rotate_{left,right} have the same problems the other stdc_*
type-generic functions had. If we want to support arbitrary
unsigned _BitInt(N), don't want to use statement expressions
(so that one can actually use them in static variable initializers),
don't want to evaluate the arguments multiple times and don't want
to expand the arguments multiple times during preprocessing to avoid the
old tgmath preprocessing bloat, we need a built-in for those.
The following patch adds those. And as we need to support rotations by 0
and tree-ssa-forwprop.cc is only able to pattern recognize with BIT_AND_EXPR
for that case (i.e. for power of two widths), the patch just constructs
LROTATE_EXPR/RROTATE_EXPR right away. Negative second arguments are
considered UB, while positive ones are modulo precision.
2024-10-29 Jakub Jelinek <jakub@redhat.com>
PR c/117030
gcc/
* doc/extend.texi (__builtin_stdc_rotate_left,
__builtin_stdc_rotate_right): Document.
gcc/c-family/
* c-common.cc (c_common_reswords): Add __builtin_stdc_rotate_left
and __builtin_stdc_rotate_right.
* c-ubsan.cc (ubsan_instrument_shift): For {L,R}ROTATE_EXPR
just check if op1 is negative.
gcc/c/
* c-parser.cc: Include asan.h and c-family/c-ubsan.h.
(c_parser_postfix_expression): Handle __builtin_stdc_rotate_left
and __builtin_stdc_rotate_right.
* c-fold.cc (c_fully_fold_internal): Handle LROTATE_EXPR and
RROTATE_EXPR.
gcc/testsuite/
* gcc.dg/builtin-stdc-rotate-1.c: New test.
* gcc.dg/builtin-stdc-rotate-2.c: New test.
* gcc.dg/ubsan/builtin-stdc-rotate-1.c: New test.
* gcc.dg/ubsan/builtin-stdc-rotate-2.c: New test.
|
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On Thu, Oct 24, 2024 at 03:33:25PM -0400, Eric Gallager wrote:
> On Thu, Oct 24, 2024 at 4:17 AM Jakub Jelinek <jakub@redhat.com> wrote:
> > I've tried to build stage3 with
> > -Wleading-whitespace=blanks -Wtrailing-whitespace=blank -Wno-error=leading-whitespace=blanks -Wno-error=trailing-whitespace=blank
>
> So wait, it's "blanks" (plural) when it's leading, but "blank"
> (singular) when it's trailing? That inconsistency bothers me...
I've mentioned it already in
https://gcc.gnu.org/pipermail/gcc-patches/2024-October/664664.html
Citing that here:
Not sure about the kinds for the option, given -Wleading-whitespace=
uses plural and this option singular and -Wleading-whitespace= spaces
means literally just ' ' characters, while space in
-Wtrailing-whitespace= was ' ', '\t', '\v' and '\f'; so category;
perhaps just use any and blanks?
Other preferences?
Here is a patch to do the blank->blanks and space->any changes.
2024-10-27 Jakub Jelinek <jakub@redhat.com>
gcc/
* doc/invoke.texi (Wtrailing-whitespace=): Change
blank argument to blanks and space argument to any.
gcc/c-family/
* c.opt (warn_trailing_whitespace_kind): Change blank
to blanks and space to any.
gcc/testsuite/
* c-c++-common/cpp/Wtrailing-whitespace-2.c: Use
-Wtrailing-whitespace=blanks rather than -Wtrailing-whitespace=blank.
* c-c++-common/cpp/Wtrailing-whitespace-3.c: Use
-Wtrailing-whitespace=any rather than -Wtrailing-whitespace=space.
* c-c++-common/cpp/Wtrailing-whitespace-7.c: Use
-Wtrailing-whitespace=blanks rather than -Wtrailing-whitespace=blank.
* c-c++-common/cpp/Wtrailing-whitespace-8.c: Use
-Wtrailing-whitespace=any rather than -Wtrailing-whitespace=space.
|
|
|
|
I've tried to build stage3 with
-Wleading-whitespace=blanks -Wtrailing-whitespace=blank -Wno-error=leading-whitespace=blanks -Wno-error=trailing-whitespace=blank
added to STRICT_WARN and that expectably resulted in about
2744 unique trailing whitespace warnings and 124837 leading whitespace
warnings when excluding *.md files (which obviously is in big part a
generator issue). Others from that are generator related, I think those
need to be solved later.
The following patch just fixes up the easy case (trailing whitespace),
which could be easily automated:
for i in `find . -name \*.h -o -name \*.cc -o -name \*.c | xargs grep -l '[ ]$' | grep -v testsuite/`; do sed -i -e 's/[ ]*$//' $i; done
I've excluded files which I knew are obviously generated or go FE.
Is there anything else we'd want to avoid the changes?
Due to patch size, I've split it between gcc/ part (this patch)
and rest (include/, libiberty/, libgcc/, libcpp/, libstdc++-v3/).
2024-10-24 Jakub Jelinek <jakub@redhat.com>
gcc/
* lra-assigns.cc: Remove trailing whitespace.
* symtab.cc: Likewise.
* stmt.cc: Likewise.
* cgraphbuild.cc: Likewise.
* cfgcleanup.cc: Likewise.
* loop-init.cc: Likewise.
* df-problems.cc: Likewise.
* diagnostic-macro-unwinding.cc: Likewise.
* langhooks.h: Likewise.
* except.cc: Likewise.
* tree-vect-loop.cc: Likewise.
* coverage.cc: Likewise.
* hash-table.cc: Likewise.
* ggc-page.cc: Likewise.
* gimple-ssa-strength-reduction.cc: Likewise.
* tree-parloops.cc: Likewise.
* internal-fn.cc: Likewise.
* ipa-split.cc: Likewise.
* calls.cc: Likewise.
* reorg.cc: Likewise.
* sbitmap.h: Likewise.
* omp-offload.cc: Likewise.
* cfgrtl.cc: Likewise.
* reginfo.cc: Likewise.
* gengtype.h: Likewise.
* omp-general.h: Likewise.
* ipa-comdats.cc: Likewise.
* gimple-range-edge.h: Likewise.
* tree-ssa-structalias.cc: Likewise.
* target.def: Likewise.
* basic-block.h: Likewise.
* graphite-isl-ast-to-gimple.cc: Likewise.
* auto-profile.cc: Likewise.
* optabs.cc: Likewise.
* gengtype-lex.l: Likewise.
* optabs.def: Likewise.
* ira-build.cc: Likewise.
* ira.cc: Likewise.
* function.h: Likewise.
* tree-ssa-propagate.cc: Likewise.
* gcov-io.cc: Likewise.
* builtin-types.def: Likewise.
* ddg.cc: Likewise.
* lra-spills.cc: Likewise.
* cfg.cc: Likewise.
* bitmap.cc: Likewise.
* gimple-range-gori.h: Likewise.
* tree-ssa-loop-im.cc: Likewise.
* cfghooks.h: Likewise.
* genmatch.cc: Likewise.
* explow.cc: Likewise.
* lto-streamer-in.cc: Likewise.
* graphite-scop-detection.cc: Likewise.
* ipa-prop.cc: Likewise.
* gcc.cc: Likewise.
* vec.h: Likewise.
* cfgexpand.cc: Likewise.
* config/alpha/vms.h: Likewise.
* config/alpha/alpha.cc: Likewise.
* config/alpha/driver-alpha.cc: Likewise.
* config/alpha/elf.h: Likewise.
* config/iq2000/iq2000.h: Likewise.
* config/iq2000/iq2000.cc: Likewise.
* config/pa/pa-64.h: Likewise.
* config/pa/som.h: Likewise.
* config/pa/pa.cc: Likewise.
* config/pa/pa.h: Likewise.
* config/pa/pa32-regs.h: Likewise.
* config/c6x/c6x.cc: Likewise.
* config/openbsd-stdint.h: Likewise.
* config/elfos.h: Likewise.
* config/lm32/lm32.cc: Likewise.
* config/lm32/lm32.h: Likewise.
* config/lm32/lm32-protos.h: Likewise.
* config/darwin-c.cc: Likewise.
* config/rx/rx.cc: Likewise.
* config/host-darwin.h: Likewise.
* config/netbsd.h: Likewise.
* config/ia64/ia64.cc: Likewise.
* config/ia64/freebsd.h: Likewise.
* config/avr/avr-c.cc: Likewise.
* config/avr/avr.cc: Likewise.
* config/avr/avr-arch.h: Likewise.
* config/avr/avr.h: Likewise.
* config/avr/stdfix.h: Likewise.
* config/avr/gen-avr-mmcu-specs.cc: Likewise.
* config/avr/avr-log.cc: Likewise.
* config/avr/elf.h: Likewise.
* config/avr/gen-avr-mmcu-texi.cc: Likewise.
* config/avr/avr-devices.cc: Likewise.
* config/nvptx/nvptx.cc: Likewise.
* config/vx-common.h: Likewise.
* config/sol2.cc: Likewise.
* config/rl78/rl78.cc: Likewise.
* config/cris/cris.cc: Likewise.
* config/arm/symbian.h: Likewise.
* config/arm/unknown-elf.h: Likewise.
* config/arm/linux-eabi.h: Likewise.
* config/arm/arm.cc: Likewise.
* config/arm/arm-mve-builtins.h: Likewise.
* config/arm/bpabi.h: Likewise.
* config/arm/vxworks.h: Likewise.
* config/arm/arm.h: Likewise.
* config/arm/aout.h: Likewise.
* config/arm/elf.h: Likewise.
* config/host-linux.cc: Likewise.
* config/sh/sh_treg_combine.cc: Likewise.
* config/sh/vxworks.h: Likewise.
* config/sh/elf.h: Likewise.
* config/sh/netbsd-elf.h: Likewise.
* config/sh/sh.cc: Likewise.
* config/sh/embed-elf.h: Likewise.
* config/sh/sh.h: Likewise.
* config/darwin-driver.cc: Likewise.
* config/m32c/m32c.cc: Likewise.
* config/frv/frv.cc: Likewise.
* config/openbsd.h: Likewise.
* config/aarch64/aarch64-protos.h: Likewise.
* config/aarch64/aarch64-builtins.cc: Likewise.
* config/aarch64/aarch64-cost-tables.h: Likewise.
* config/aarch64/aarch64.cc: Likewise.
* config/bfin/bfin.cc: Likewise.
* config/bfin/bfin.h: Likewise.
* config/bfin/bfin-protos.h: Likewise.
* config/i386/gmm_malloc.h: Likewise.
* config/i386/djgpp.h: Likewise.
* config/i386/sol2.h: Likewise.
* config/i386/stringop.def: Likewise.
* config/i386/i386-features.cc: Likewise.
* config/i386/openbsdelf.h: Likewise.
* config/i386/cpuid.h: Likewise.
* config/i386/i386.h: Likewise.
* config/i386/smmintrin.h: Likewise.
* config/i386/avx10_2-512convertintrin.h: Likewise.
* config/i386/i386-options.cc: Likewise.
* config/i386/i386-opts.h: Likewise.
* config/i386/i386-expand.cc: Likewise.
* config/i386/avx512dqintrin.h: Likewise.
* config/i386/wmmintrin.h: Likewise.
* config/i386/gnu-user.h: Likewise.
* config/i386/host-mingw32.cc: Likewise.
* config/i386/avx10_2bf16intrin.h: Likewise.
* config/i386/cygwin.h: Likewise.
* config/i386/driver-i386.cc: Likewise.
* config/i386/biarch64.h: Likewise.
* config/i386/host-cygwin.cc: Likewise.
* config/i386/cygming.h: Likewise.
* config/i386/i386-builtins.cc: Likewise.
* config/i386/avx10_2convertintrin.h: Likewise.
* config/i386/i386.cc: Likewise.
* config/i386/gas.h: Likewise.
* config/i386/freebsd.h: Likewise.
* config/mingw/winnt-cxx.cc: Likewise.
* config/mingw/winnt.cc: Likewise.
* config/h8300/h8300.cc: Likewise.
* config/host-solaris.cc: Likewise.
* config/m32r/m32r.h: Likewise.
* config/m32r/m32r.cc: Likewise.
* config/darwin.h: Likewise.
* config/sparc/linux64.h: Likewise.
* config/sparc/sparc-protos.h: Likewise.
* config/sparc/sysv4.h: Likewise.
* config/sparc/sparc.h: Likewise.
* config/sparc/linux.h: Likewise.
* config/sparc/freebsd.h: Likewise.
* config/sparc/sparc.cc: Likewise.
* config/gcn/gcn-run.cc: Likewise.
* config/gcn/gcn.cc: Likewise.
* config/gcn/gcn-tree.cc: Likewise.
* config/kopensolaris-gnu.h: Likewise.
* config/nios2/nios2.h: Likewise.
* config/nios2/elf.h: Likewise.
* config/nios2/nios2.cc: Likewise.
* config/host-netbsd.cc: Likewise.
* config/rtems.h: Likewise.
* config/pdp11/pdp11.cc: Likewise.
* config/pdp11/pdp11.h: Likewise.
* config/mn10300/mn10300.cc: Likewise.
* config/mn10300/linux.h: Likewise.
* config/moxie/moxie.h: Likewise.
* config/moxie/moxie.cc: Likewise.
* config/rs6000/aix71.h: Likewise.
* config/rs6000/vec_types.h: Likewise.
* config/rs6000/xcoff.h: Likewise.
* config/rs6000/rs6000.cc: Likewise.
* config/rs6000/rs6000-internal.h: Likewise.
* config/rs6000/rs6000-p8swap.cc: Likewise.
* config/rs6000/rs6000-c.cc: Likewise.
* config/rs6000/aix.h: Likewise.
* config/rs6000/rs6000-logue.cc: Likewise.
* config/rs6000/rs6000-string.cc: Likewise.
* config/rs6000/rs6000-call.cc: Likewise.
* config/rs6000/ppu_intrinsics.h: Likewise.
* config/rs6000/altivec.h: Likewise.
* config/rs6000/darwin.h: Likewise.
* config/rs6000/host-darwin.cc: Likewise.
* config/rs6000/freebsd64.h: Likewise.
* config/rs6000/spu2vmx.h: Likewise.
* config/rs6000/linux.h: Likewise.
* config/rs6000/si2vmx.h: Likewise.
* config/rs6000/driver-rs6000.cc: Likewise.
* config/rs6000/freebsd.h: Likewise.
* config/vxworksae.h: Likewise.
* config/mips/frame-header-opt.cc: Likewise.
* config/mips/mips.h: Likewise.
* config/mips/mips.cc: Likewise.
* config/mips/sde.h: Likewise.
* config/darwin-protos.h: Likewise.
* config/mcore/mcore-elf.h: Likewise.
* config/mcore/mcore.h: Likewise.
* config/mcore/mcore.cc: Likewise.
* config/epiphany/epiphany.cc: Likewise.
* config/fr30/fr30.h: Likewise.
* config/fr30/fr30.cc: Likewise.
* config/riscv/riscv-vector-builtins-shapes.cc: Likewise.
* config/riscv/riscv-vector-builtins-bases.cc: Likewise.
* config/visium/visium.h: Likewise.
* config/mmix/mmix.cc: Likewise.
* config/v850/v850.cc: Likewise.
* config/v850/v850-c.cc: Likewise.
* config/v850/v850.h: Likewise.
* config/stormy16/stormy16.cc: Likewise.
* config/stormy16/stormy16-protos.h: Likewise.
* config/stormy16/stormy16.h: Likewise.
* config/arc/arc.cc: Likewise.
* config/vxworks.cc: Likewise.
* config/microblaze/microblaze-c.cc: Likewise.
* config/microblaze/microblaze-protos.h: Likewise.
* config/microblaze/microblaze.h: Likewise.
* config/microblaze/microblaze.cc: Likewise.
* config/freebsd-spec.h: Likewise.
* config/m68k/m68kelf.h: Likewise.
* config/m68k/m68k.cc: Likewise.
* config/m68k/netbsd-elf.h: Likewise.
* config/m68k/linux.h: Likewise.
* config/freebsd.h: Likewise.
* config/host-openbsd.cc: Likewise.
* regcprop.cc: Likewise.
* dumpfile.cc: Likewise.
* combine.cc: Likewise.
* tree-ssa-forwprop.cc: Likewise.
* ipa-profile.cc: Likewise.
* hw-doloop.cc: Likewise.
* opts.cc: Likewise.
* gcc-ar.cc: Likewise.
* tree-cfg.cc: Likewise.
* incpath.cc: Likewise.
* tree-ssa-sccvn.cc: Likewise.
* function.cc: Likewise.
* genattrtab.cc: Likewise.
* rtl.def: Likewise.
* genchecksum.cc: Likewise.
* profile.cc: Likewise.
* df-core.cc: Likewise.
* tree-pretty-print.cc: Likewise.
* tree.h: Likewise.
* plugin.cc: Likewise.
* tree-ssa-loop-ch.cc: Likewise.
* emit-rtl.cc: Likewise.
* haifa-sched.cc: Likewise.
* gimple-range-edge.cc: Likewise.
* range-op.cc: Likewise.
* tree-ssa-ccp.cc: Likewise.
* dwarf2cfi.cc: Likewise.
* recog.cc: Likewise.
* vtable-verify.cc: Likewise.
* system.h: Likewise.
* regrename.cc: Likewise.
* tree-ssa-dom.cc: Likewise.
* loop-unroll.cc: Likewise.
* lra-constraints.cc: Likewise.
* pretty-print.cc: Likewise.
* ifcvt.cc: Likewise.
* ipa.cc: Likewise.
* alloc-pool.h: Likewise.
* collect2.cc: Likewise.
* pointer-query.cc: Likewise.
* cfgloop.cc: Likewise.
* toplev.cc: Likewise.
* sese.cc: Likewise.
* gengtype.cc: Likewise.
* gimplify-me.cc: Likewise.
* double-int.cc: Likewise.
* bb-reorder.cc: Likewise.
* dwarf2out.cc: Likewise.
* tree-ssa-loop-ivcanon.cc: Likewise.
* tree-ssa-reassoc.cc: Likewise.
* cgraph.cc: Likewise.
* sel-sched.cc: Likewise.
* attribs.cc: Likewise.
* expr.cc: Likewise.
* tree-ssa-scopedtables.h: Likewise.
* gimple-range-cache.cc: Likewise.
* ipa-pure-const.cc: Likewise.
* tree-inline.cc: Likewise.
* genhooks.cc: Likewise.
* gimple-range-phi.h: Likewise.
* shrink-wrap.cc: Likewise.
* tree.cc: Likewise.
* gimple.cc: Likewise.
* backend.h: Likewise.
* opts-common.cc: Likewise.
* cfg-flags.def: Likewise.
* gcse-common.cc: Likewise.
* tree-ssa-scopedtables.cc: Likewise.
* ccmp.cc: Likewise.
* builtins.def: Likewise.
* builtin-attrs.def: Likewise.
* postreload.cc: Likewise.
* sched-deps.cc: Likewise.
* ipa-inline-transform.cc: Likewise.
* tree-vect-generic.cc: Likewise.
* ipa-polymorphic-call.cc: Likewise.
* builtins.cc: Likewise.
* sel-sched-ir.cc: Likewise.
* trans-mem.cc: Likewise.
* ipa-visibility.cc: Likewise.
* cgraph.h: Likewise.
* tree-ssa-phiopt.cc: Likewise.
* genopinit.cc: Likewise.
* ipa-inline.cc: Likewise.
* omp-low.cc: Likewise.
* ipa-utils.cc: Likewise.
* tree-ssa-math-opts.cc: Likewise.
* tree-ssa-ifcombine.cc: Likewise.
* gimple-range.cc: Likewise.
* ipa-fnsummary.cc: Likewise.
* ira-color.cc: Likewise.
* value-prof.cc: Likewise.
* varasm.cc: Likewise.
* ipa-icf.cc: Likewise.
* ira-emit.cc: Likewise.
* lto-streamer.h: Likewise.
* lto-wrapper.cc: Likewise.
* regs.h: Likewise.
* gengtype-parse.cc: Likewise.
* alias.cc: Likewise.
* lto-streamer.cc: Likewise.
* real.h: Likewise.
* wide-int.h: Likewise.
* targhooks.cc: Likewise.
* gimple-ssa-warn-access.cc: Likewise.
* real.cc: Likewise.
* ipa-reference.cc: Likewise.
* bitmap.h: Likewise.
* ginclude/float.h: Likewise.
* ginclude/stddef.h: Likewise.
* ginclude/stdarg.h: Likewise.
* ginclude/stdatomic.h: Likewise.
* optabs.h: Likewise.
* sel-sched-ir.h: Likewise.
* convert.cc: Likewise.
* cgraphunit.cc: Likewise.
* lra-remat.cc: Likewise.
* tree-if-conv.cc: Likewise.
* gcov-dump.cc: Likewise.
* tree-predcom.cc: Likewise.
* dominance.cc: Likewise.
* gimple-range-cache.h: Likewise.
* ipa-devirt.cc: Likewise.
* rtl.h: Likewise.
* ubsan.cc: Likewise.
* tree-ssa.cc: Likewise.
* ssa.h: Likewise.
* cse.cc: Likewise.
* jump.cc: Likewise.
* hwint.h: Likewise.
* caller-save.cc: Likewise.
* coretypes.h: Likewise.
* ipa-fnsummary.h: Likewise.
* tree-ssa-strlen.cc: Likewise.
* modulo-sched.cc: Likewise.
* cgraphclones.cc: Likewise.
* lto-cgraph.cc: Likewise.
* hw-doloop.h: Likewise.
* data-streamer.h: Likewise.
* compare-elim.cc: Likewise.
* profile-count.h: Likewise.
* tree-vect-loop-manip.cc: Likewise.
* ree.cc: Likewise.
* reload.cc: Likewise.
* tree-ssa-loop-split.cc: Likewise.
* tree-into-ssa.cc: Likewise.
* gcse.cc: Likewise.
* cfgloopmanip.cc: Likewise.
* df.h: Likewise.
* fold-const.cc: Likewise.
* wide-int.cc: Likewise.
* gengtype-state.cc: Likewise.
* sanitizer.def: Likewise.
* tree-ssa-sink.cc: Likewise.
* target-hooks-macros.h: Likewise.
* tree-ssa-pre.cc: Likewise.
* gimple-pretty-print.cc: Likewise.
* ipa-utils.h: Likewise.
* tree-outof-ssa.cc: Likewise.
* tree-ssa-coalesce.cc: Likewise.
* gimple-match.h: Likewise.
* tree-ssa-loop-niter.cc: Likewise.
* tree-loop-distribution.cc: Likewise.
* tree-emutls.cc: Likewise.
* tree-eh.cc: Likewise.
* varpool.cc: Likewise.
* ssa-iterators.h: Likewise.
* asan.cc: Likewise.
* reload1.cc: Likewise.
* cfgloopanal.cc: Likewise.
* tree-vectorizer.cc: Likewise.
* simplify-rtx.cc: Likewise.
* opts-global.cc: Likewise.
* gimple-ssa-store-merging.cc: Likewise.
* expmed.cc: Likewise.
* tree-ssa-loop-prefetch.cc: Likewise.
* tree-ssa-dse.h: Likewise.
* tree-vect-stmts.cc: Likewise.
* gimple-fold.cc: Likewise.
* lra-coalesce.cc: Likewise.
* data-streamer-out.cc: Likewise.
* diagnostic.cc: Likewise.
* tree-ssa-alias.cc: Likewise.
* tree-vect-patterns.cc: Likewise.
* common/common-target.def: Likewise.
* common/config/rx/rx-common.cc: Likewise.
* common/config/msp430/msp430-common.cc: Likewise.
* common/config/avr/avr-common.cc: Likewise.
* common/config/i386/i386-common.cc: Likewise.
* common/config/pdp11/pdp11-common.cc: Likewise.
* common/config/rs6000/rs6000-common.cc: Likewise.
* common/config/mcore/mcore-common.cc: Likewise.
* graphite.cc: Likewise.
* gimple-low.cc: Likewise.
* genmodes.cc: Likewise.
* gimple-loop-jam.cc: Likewise.
* lto-streamer-out.cc: Likewise.
* predict.cc: Likewise.
* omp-expand.cc: Likewise.
* gimple-array-bounds.cc: Likewise.
* predict.def: Likewise.
* opts.h: Likewise.
* tree-stdarg.cc: Likewise.
* gimplify.cc: Likewise.
* ira-lives.cc: Likewise.
* loop-doloop.cc: Likewise.
* lra.cc: Likewise.
* gimple-iterator.h: Likewise.
* tree-sra.cc: Likewise.
gcc/fortran/
* trans-openmp.cc: Remove trailing whitespace.
* trans-common.cc: Likewise.
* match.h: Likewise.
* scanner.cc: Likewise.
* gfortranspec.cc: Likewise.
* io.cc: Likewise.
* iso-c-binding.def: Likewise.
* iso-fortran-env.def: Likewise.
* types.def: Likewise.
* openmp.cc: Likewise.
* f95-lang.cc: Likewise.
gcc/analyzer/
* state-purge.cc: Remove trailing whitespace.
* region-model.h: Likewise.
* region-model.cc: Likewise.
* program-point.cc: Likewise.
* exploded-graph.h: Likewise.
* program-state.cc: Likewise.
* supergraph.cc: Likewise.
gcc/c-family/
* c-ubsan.cc: Remove trailing whitespace.
* stub-objc.cc: Likewise.
* c-pragma.cc: Likewise.
* c-ppoutput.cc: Likewise.
* c-indentation.cc: Likewise.
* c-ada-spec.cc: Likewise.
* c-opts.cc: Likewise.
* c-common.cc: Likewise.
* c-format.cc: Likewise.
* c-omp.cc: Likewise.
* c-objc.h: Likewise.
* c-cppbuiltin.cc: Likewise.
* c-attribs.cc: Likewise.
* c-target.def: Likewise.
* c-common.h: Likewise.
gcc/c/
* c-typeck.cc: Remove trailing whitespace.
* gimple-parser.cc: Likewise.
* c-parser.cc: Likewise.
* c-decl.cc: Likewise.
gcc/cp/
* vtable-class-hierarchy.cc: Remove trailing whitespace.
* typeck2.cc: Likewise.
* decl.cc: Likewise.
* init.cc: Likewise.
* semantics.cc: Likewise.
* module.cc: Likewise.
* rtti.cc: Likewise.
* cxx-pretty-print.cc: Likewise.
* cvt.cc: Likewise.
* mangle.cc: Likewise.
* name-lookup.h: Likewise.
* coroutines.cc: Likewise.
* error.cc: Likewise.
* lambda.cc: Likewise.
* tree.cc: Likewise.
* g++spec.cc: Likewise.
* decl2.cc: Likewise.
* cp-tree.h: Likewise.
* parser.cc: Likewise.
* pt.cc: Likewise.
* call.cc: Likewise.
* lex.cc: Likewise.
* cp-lang.cc: Likewise.
* cp-tree.def: Likewise.
* constexpr.cc: Likewise.
* typeck.cc: Likewise.
* name-lookup.cc: Likewise.
* optimize.cc: Likewise.
* search.cc: Likewise.
* mapper-client.cc: Likewise.
* ptree.cc: Likewise.
* class.cc: Likewise.
gcc/jit/
* docs/examples/tut04-toyvm/toyvm.cc: Remove trailing whitespace.
gcc/lto/
* lto-object.cc: Remove trailing whitespace.
* lto-symtab.cc: Likewise.
* lto-partition.cc: Likewise.
* lang-specs.h: Likewise.
* lto-lang.cc: Likewise.
gcc/objc/
* objc-encoding.cc: Remove trailing whitespace.
* objc-map.h: Likewise.
* objc-next-runtime-abi-01.cc: Likewise.
* objc-act.cc: Likewise.
* objc-map.cc: Likewise.
gcc/objcp/
* objcp-decl.cc: Remove trailing whitespace.
* objcp-lang.cc: Likewise.
* objcp-decl.h: Likewise.
gcc/rust/
* util/optional.h: Remove trailing whitespace.
* util/expected.h: Likewise.
* util/rust-unicode-data.h: Likewise.
gcc/m2/
* mc-boot/GFpuIO.cc: Remove trailing whitespace.
* mc-boot/GFIO.cc: Likewise.
* mc-boot/GFormatStrings.cc: Likewise.
* mc-boot/GCmdArgs.cc: Likewise.
* mc-boot/GDebug.h: Likewise.
* mc-boot/GM2Dependent.cc: Likewise.
* mc-boot/GRTint.cc: Likewise.
* mc-boot/GDebug.cc: Likewise.
* mc-boot/GmcError.cc: Likewise.
* mc-boot/Gmcp4.cc: Likewise.
* mc-boot/GM2RTS.cc: Likewise.
* mc-boot/GIO.cc: Likewise.
* mc-boot/Gmcp5.cc: Likewise.
* mc-boot/GDynamicStrings.cc: Likewise.
* mc-boot/Gmcp1.cc: Likewise.
* mc-boot/GFormatStrings.h: Likewise.
* mc-boot/Gmcp2.cc: Likewise.
* mc-boot/Gmcp3.cc: Likewise.
* pge-boot/GFIO.cc: Likewise.
* pge-boot/GDebug.h: Likewise.
* pge-boot/GM2Dependent.cc: Likewise.
* pge-boot/GDebug.cc: Likewise.
* pge-boot/GM2RTS.cc: Likewise.
* pge-boot/GSymbolKey.cc: Likewise.
* pge-boot/GIO.cc: Likewise.
* pge-boot/GIndexing.cc: Likewise.
* pge-boot/GDynamicStrings.cc: Likewise.
* pge-boot/GFormatStrings.h: Likewise.
gcc/go/
* go-gcc.cc: Remove trailing whitespace.
* gospec.cc: Likewise.
|
|
My forthcoming patches for PR other/116613 make much more use of
cloning of pretty_printers than before, so it makes sense as a
preliminary patch for the result of pretty_printer::clone to be a
std::unique_ptr, rather than add more manual uses of "delete".
On doing so, I noticed various other places where naked new/delete is
used for run-time configuration of diagnostics:
* the output format (text vs SARIF)
* client data hooks
* the option manager
* the URLifier
Hence this patch also makes use of std::unique_ptr and ::make_unique for
managing such client policy classes, and also for diagnostic_buffer's
per-format implementations.
Unfortunately we can't directly include <memory> in our internal headers
but instead any of our TUs that make use of std::unique_ptr must #define
INCLUDE_MEMORY before including system.h.
Hence the bulk of this patch is taken up with adding a define of
INCLUDE_MEMORY to hundreds of source files: everything that includes
diagnostic.h or pretty-print.h (and thus anything transitively such as
includers of lto-wrapper.h, c-tree.h, cp-tree.h and rtl-ssa.h).
Thanks to Gaius Mulley for the parts of the patch that regenerated the
m2 files.
gcc/ada/ChangeLog:
PR other/116613
* gcc-interface/misc.cc: Add #define INCLUDE_MEMORY
* gcc-interface/trans.cc: Likewise.
* gcc-interface/utils.cc: Likewise.
gcc/analyzer/ChangeLog:
PR other/116613
* analyzer-logging.cc: Add #define INCLUDE_MEMORY
(logger::logger): Update for m_pp becoming a unique_ptr.
(logger::~logger): Likewise.
(logger::log_va_partial): Likewise.
(logger::end_log_line): Likewise.
* analyzer-logging.h (logger::get_printer): Likewise.
(logger::m_pp): Convert to a unique_ptr.
* analyzer.cc (make_label_text): Use
diagnostic_context::clone_printer and use unique_ptr.
(make_label_text_n): Likewise.
* bar-chart.cc: Add #define INCLUDE_MEMORY
* pending-diagnostic.cc (evdesc::event_desc::formatted_print):
Use diagnostic_context::clone_printer and use unique_ptr.
* sm-malloc.cc (sufficiently_similar_p): Likewise.
* supergraph.cc (supergraph::dump_dot_to_file): Likewise.
gcc/c-family/ChangeLog:
PR other/116613
* c-ada-spec.cc: Add #define INCLUDE_MEMORY.
* c-attribs.cc: Likewise.
* c-common.cc: Likewise.
* c-format.cc: Likewise.
* c-gimplify.cc: Likewise.
* c-indentation.cc: Likewise.
* c-opts.cc: Likewise.
* c-pch.cc: Likewise.
* c-pragma.cc: Likewise.
* c-pretty-print.cc: Likewise. Add #include "make-unique.h".
(c_pretty_printer::clone): Use std::unique_ptr and ::make_unique.
* c-pretty-print.h (c_pretty_printer::clone): Use std::unique_ptr.
* c-type-mismatch.cc: Add #define INCLUDE_MEMORY.
* c-warn.cc: Likewise.
gcc/c/ChangeLog:
PR other/116613
* c-aux-info.cc: Add #define INCLUDE_MEMORY.
* c-convert.cc: Likewise.
* c-errors.cc: Likewise.
* c-fold.cc: Likewise.
* c-lang.cc: Likewise.
* c-objc-common.cc: Likewise.
(pp_markup::element_quoted_type::print_type): Use unique_ptr.
* c-typeck.cc: Add #define INCLUDE_MEMORY.
* gimple-parser.cc: Likewise.
gcc/cp/ChangeLog:
PR other/116613
* call.cc: Add #define INCLUDE_MEMORY.
* class.cc: Likewise.
* constexpr.cc: Likewise.
* constraint.cc: Likewise.
* contracts.cc: Likewise.
* coroutines.cc: Likewise.
* cp-gimplify.cc: Likewise.
* cp-lang.cc: Likewise.
* cp-objcp-common.cc: Likewise.
* cp-ubsan.cc: Likewise.
* cvt.cc: Likewise.
* cxx-pretty-print.cc: Likewise. Add #include "cp-tree.h".
(cxx_pretty_printer::clone): Use std::unique_ptr and
::make_unique.
* cxx-pretty-print.h (cxx_pretty_printer::clone): Use
std::unique_ptr.
* decl2.cc: Add #define INCLUDE_MEMORY.
* dump.cc: Likewise.
* except.cc: Likewise.
* expr.cc: Likewise.
* friend.cc: Likewise.
* init.cc: Likewise.
* lambda.cc: Likewise.
* logic.cc: Likewise.
* mangle.cc: Likewise.
* method.cc: Likewise.
* optimize.cc: Likewise.
* pt.cc: Likewise.
* ptree.cc: Likewise.
* rtti.cc: Likewise.
* search.cc: Likewise.
* semantics.cc: Likewise.
* tree.cc: Likewise.
* typeck.cc: Likewise.
* typeck2.cc: Likewise.
* vtable-class-hierarchy.cc: Likewise.
gcc/d/ChangeLog:
PR other/116613
* d-attribs.cc: Add #define INCLUDE_MEMORY.
* d-builtins.cc: Likewise.
* d-codegen.cc: Likewise.
* d-convert.cc: Likewise.
* d-diagnostic.cc: Likewise.
* d-frontend.cc: Likewise.
* d-lang.cc: Likewise.
* d-longdouble.cc: Likewise.
* d-target.cc: Likewise.
* decl.cc: Likewise.
* expr.cc: Likewise.
* intrinsics.cc: Likewise.
* modules.cc: Likewise.
* toir.cc: Likewise.
* typeinfo.cc: Likewise.
* types.cc: Likewise.
gcc/fortran/ChangeLog:
PR other/116613
* arith.cc: Add #define INCLUDE_MEMORY.
* array.cc: Likewise.
* bbt.cc: Likewise.
* check.cc: Likewise.
* class.cc: Likewise.
* constructor.cc: Likewise.
* convert.cc: Likewise.
* cpp.cc: Likewise.
* data.cc: Likewise.
* decl.cc: Likewise.
* dependency.cc: Likewise.
* dump-parse-tree.cc: Likewise.
* error.cc: Likewise.
* expr.cc: Likewise.
* f95-lang.cc: Likewise.
* frontend-passes.cc: Likewise.
* interface.cc: Likewise.
* intrinsic.cc: Likewise.
* io.cc: Likewise.
* iresolve.cc: Likewise.
* match.cc: Likewise.
* matchexp.cc: Likewise.
* misc.cc: Likewise.
* module.cc: Likewise.
* openmp.cc: Likewise.
* options.cc: Likewise.
* parse.cc: Likewise.
* primary.cc: Likewise.
* resolve.cc: Likewise.
* scanner.cc: Likewise.
* simplify.cc: Likewise.
* st.cc: Likewise.
* symbol.cc: Likewise.
* target-memory.cc: Likewise.
* trans-array.cc: Likewise.
* trans-common.cc: Likewise.
* trans-const.cc: Likewise.
* trans-decl.cc: Likewise.
* trans-expr.cc: Likewise.
* trans-intrinsic.cc: Likewise.
* trans-io.cc: Likewise.
* trans-openmp.cc: Likewise.
* trans-stmt.cc: Likewise.
* trans-types.cc: Likewise.
* trans.cc: Likewise.
gcc/go/ChangeLog:
PR other/116613
* go-backend.cc: Add #define INCLUDE_MEMORY.
* go-lang.cc: Likewise.
gcc/jit/ChangeLog:
PR other/116613
* dummy-frontend.cc: Add #define INCLUDE_MEMORY.
* jit-playback.cc: Likewise.
* jit-recording.cc: Likewise.
gcc/lto/ChangeLog:
PR other/116613
* lto-common.cc: Add #define INCLUDE_MEMORY.
* lto-dump.cc: Likewise.
* lto-partition.cc: Likewise.
* lto-symtab.cc: Likewise.
* lto.cc: Likewise.
gcc/m2/ChangeLog:
PR other/116613
* gm2-gcc/gcc-consolidation.h: Add #define INCLUDE_MEMORY.
* gm2-gcc/m2configure.cc: Likewise.
* mc-boot/GASCII.cc: Regenerate.
* mc-boot/GASCII.h: Ditto.
* mc-boot/GArgs.cc: Ditto.
* mc-boot/GArgs.h: Ditto.
* mc-boot/GAssertion.cc: Ditto.
* mc-boot/GAssertion.h: Ditto.
* mc-boot/GBreak.cc: Ditto.
* mc-boot/GBreak.h: Ditto.
* mc-boot/GCOROUTINES.h: Ditto.
* mc-boot/GCmdArgs.cc: Ditto.
* mc-boot/GCmdArgs.h: Ditto.
* mc-boot/GDebug.cc: Ditto.
* mc-boot/GDebug.h: Ditto.
* mc-boot/GDynamicStrings.cc: Ditto.
* mc-boot/GDynamicStrings.h: Ditto.
* mc-boot/GEnvironment.cc: Ditto.
* mc-boot/GEnvironment.h: Ditto.
* mc-boot/GFIO.cc: Ditto.
* mc-boot/GFIO.h: Ditto.
* mc-boot/GFormatStrings.cc: Ditto.
* mc-boot/GFormatStrings.h: Ditto.
* mc-boot/GFpuIO.cc: Ditto.
* mc-boot/GFpuIO.h: Ditto.
* mc-boot/GIO.cc: Ditto.
* mc-boot/GIO.h: Ditto.
* mc-boot/GIndexing.cc: Ditto.
* mc-boot/GIndexing.h: Ditto.
* mc-boot/GM2Dependent.cc: Ditto.
* mc-boot/GM2Dependent.h: Ditto.
* mc-boot/GM2EXCEPTION.cc: Ditto.
* mc-boot/GM2EXCEPTION.h: Ditto.
* mc-boot/GM2RTS.cc: Ditto.
* mc-boot/GM2RTS.h: Ditto.
* mc-boot/GMemUtils.cc: Ditto.
* mc-boot/GMemUtils.h: Ditto.
* mc-boot/GNumberIO.cc: Ditto.
* mc-boot/GNumberIO.h: Ditto.
* mc-boot/GPushBackInput.cc: Ditto.
* mc-boot/GPushBackInput.h: Ditto.
* mc-boot/GRTExceptions.cc: Ditto.
* mc-boot/GRTExceptions.h: Ditto.
* mc-boot/GRTco.h: Ditto.
* mc-boot/GRTentity.h: Ditto.
* mc-boot/GRTint.cc: Ditto.
* mc-boot/GRTint.h: Ditto.
* mc-boot/GSArgs.cc: Ditto.
* mc-boot/GSArgs.h: Ditto.
* mc-boot/GSFIO.cc: Ditto.
* mc-boot/GSFIO.h: Ditto.
* mc-boot/GSYSTEM.h: Ditto.
* mc-boot/GSelective.h: Ditto.
* mc-boot/GStdIO.cc: Ditto.
* mc-boot/GStdIO.h: Ditto.
* mc-boot/GStorage.cc: Ditto.
* mc-boot/GStorage.h: Ditto.
* mc-boot/GStrCase.cc: Ditto.
* mc-boot/GStrCase.h: Ditto.
* mc-boot/GStrIO.cc: Ditto.
* mc-boot/GStrIO.h: Ditto.
* mc-boot/GStrLib.cc: Ditto.
* mc-boot/GStrLib.h: Ditto.
* mc-boot/GStringConvert.cc: Ditto.
* mc-boot/GStringConvert.h: Ditto.
* mc-boot/GSysExceptions.h: Ditto.
* mc-boot/GSysStorage.cc: Ditto.
* mc-boot/GSysStorage.h: Ditto.
* mc-boot/GTimeString.cc: Ditto.
* mc-boot/GTimeString.h: Ditto.
* mc-boot/GUnixArgs.h: Ditto.
* mc-boot/Galists.cc: Ditto.
* mc-boot/Galists.h: Ditto.
* mc-boot/Gdecl.cc: Ditto.
* mc-boot/Gdecl.h: Ditto.
* mc-boot/Gdtoa.h: Ditto.
* mc-boot/Gerrno.h: Ditto.
* mc-boot/Gkeyc.cc: Ditto.
* mc-boot/Gkeyc.h: Ditto.
* mc-boot/Gldtoa.h: Ditto.
* mc-boot/Glibc.h: Ditto.
* mc-boot/Glibm.h: Ditto.
* mc-boot/Glists.cc: Ditto.
* mc-boot/Glists.h: Ditto.
* mc-boot/GmcComment.cc: Ditto.
* mc-boot/GmcComment.h: Ditto.
* mc-boot/GmcComp.cc: Ditto.
* mc-boot/GmcComp.h: Ditto.
* mc-boot/GmcDebug.cc: Ditto.
* mc-boot/GmcDebug.h: Ditto.
* mc-boot/GmcError.cc: Ditto.
* mc-boot/GmcError.h: Ditto.
* mc-boot/GmcFileName.cc: Ditto.
* mc-boot/GmcFileName.h: Ditto.
* mc-boot/GmcLexBuf.cc: Ditto.
* mc-boot/GmcLexBuf.h: Ditto.
* mc-boot/GmcMetaError.cc: Ditto.
* mc-boot/GmcMetaError.h: Ditto.
* mc-boot/GmcOptions.cc: Ditto.
* mc-boot/GmcOptions.h: Ditto.
* mc-boot/GmcPreprocess.cc: Ditto.
* mc-boot/GmcPreprocess.h: Ditto.
* mc-boot/GmcPretty.cc: Ditto.
* mc-boot/GmcPretty.h: Ditto.
* mc-boot/GmcPrintf.cc: Ditto.
* mc-boot/GmcPrintf.h: Ditto.
* mc-boot/GmcQuiet.cc: Ditto.
* mc-boot/GmcQuiet.h: Ditto.
* mc-boot/GmcReserved.cc: Ditto.
* mc-boot/GmcReserved.h: Ditto.
* mc-boot/GmcSearch.cc: Ditto.
* mc-boot/GmcSearch.h: Ditto.
* mc-boot/GmcStack.cc: Ditto.
* mc-boot/GmcStack.h: Ditto.
* mc-boot/GmcStream.cc: Ditto.
* mc-boot/GmcStream.h: Ditto.
* mc-boot/Gmcflex.h: Ditto.
* mc-boot/Gmcp1.cc: Ditto.
* mc-boot/Gmcp1.h: Ditto.
* mc-boot/Gmcp2.cc: Ditto.
* mc-boot/Gmcp2.h: Ditto.
* mc-boot/Gmcp3.cc: Ditto.
* mc-boot/Gmcp3.h: Ditto.
* mc-boot/Gmcp4.cc: Ditto.
* mc-boot/Gmcp4.h: Ditto.
* mc-boot/Gmcp5.cc: Ditto.
* mc-boot/Gmcp5.h: Ditto.
* mc-boot/GnameKey.cc: Ditto.
* mc-boot/GnameKey.h: Ditto.
* mc-boot/GsymbolKey.cc: Ditto.
* mc-boot/GsymbolKey.h: Ditto.
* mc-boot/Gtermios.h: Ditto.
* mc-boot/Gtop.cc: Ditto.
* mc-boot/Gvarargs.cc: Ditto.
* mc-boot/Gvarargs.h: Ditto.
* mc-boot/Gwlists.cc: Ditto.
* mc-boot/Gwlists.h: Ditto.
* mc-boot/Gwrapc.h: Ditto.
* mc/keyc.mod (checkGccConfigSystem): Add
#define INCLUDE_MEMORY.
* pge-boot/GASCII.cc: Regenerate.
* pge-boot/GASCII.h: Ditto.
* pge-boot/GArgs.cc: Ditto.
* pge-boot/GArgs.h: Ditto.
* pge-boot/GAssertion.cc: Ditto.
* pge-boot/GAssertion.h: Ditto.
* pge-boot/GBreak.h: Ditto.
* pge-boot/GCmdArgs.h: Ditto.
* pge-boot/GDebug.cc: Ditto.
* pge-boot/GDebug.h: Ditto.
* pge-boot/GDynamicStrings.cc: Ditto.
* pge-boot/GDynamicStrings.h: Ditto.
* pge-boot/GEnvironment.h: Ditto.
* pge-boot/GFIO.cc: Ditto.
* pge-boot/GFIO.h: Ditto.
* pge-boot/GFormatStrings.h: Ditto.
* pge-boot/GFpuIO.h: Ditto.
* pge-boot/GIO.cc: Ditto.
* pge-boot/GIO.h: Ditto.
* pge-boot/GIndexing.cc: Ditto.
* pge-boot/GIndexing.h: Ditto.
* pge-boot/GLists.cc: Ditto.
* pge-boot/GLists.h: Ditto.
* pge-boot/GM2Dependent.cc: Ditto.
* pge-boot/GM2Dependent.h: Ditto.
* pge-boot/GM2EXCEPTION.cc: Ditto.
* pge-boot/GM2EXCEPTION.h: Ditto.
* pge-boot/GM2RTS.cc: Ditto.
* pge-boot/GM2RTS.h: Ditto.
* pge-boot/GNameKey.cc: Ditto.
* pge-boot/GNameKey.h: Ditto.
* pge-boot/GNumberIO.cc: Ditto.
* pge-boot/GNumberIO.h: Ditto.
* pge-boot/GOutput.cc: Ditto.
* pge-boot/GOutput.h: Ditto.
* pge-boot/GPushBackInput.cc: Ditto.
* pge-boot/GPushBackInput.h: Ditto.
* pge-boot/GRTExceptions.cc: Ditto.
* pge-boot/GRTExceptions.h: Ditto.
* pge-boot/GSArgs.h: Ditto.
* pge-boot/GSEnvironment.h: Ditto.
* pge-boot/GSFIO.cc: Ditto.
* pge-boot/GSFIO.h: Ditto.
* pge-boot/GSYSTEM.h: Ditto.
* pge-boot/GScan.h: Ditto.
* pge-boot/GStdIO.cc: Ditto.
* pge-boot/GStdIO.h: Ditto.
* pge-boot/GStorage.cc: Ditto.
* pge-boot/GStorage.h: Ditto.
* pge-boot/GStrCase.cc: Ditto.
* pge-boot/GStrCase.h: Ditto.
* pge-boot/GStrIO.cc: Ditto.
* pge-boot/GStrIO.h: Ditto.
* pge-boot/GStrLib.cc: Ditto.
* pge-boot/GStrLib.h: Ditto.
* pge-boot/GStringConvert.h: Ditto.
* pge-boot/GSymbolKey.cc: Ditto.
* pge-boot/GSymbolKey.h: Ditto.
* pge-boot/GSysExceptions.h: Ditto.
* pge-boot/GSysStorage.cc: Ditto.
* pge-boot/GSysStorage.h: Ditto.
* pge-boot/GTimeString.h: Ditto.
* pge-boot/GUnixArgs.h: Ditto.
* pge-boot/Gbnflex.cc: Ditto.
* pge-boot/Gbnflex.h: Ditto.
* pge-boot/Gdtoa.h: Ditto.
* pge-boot/Gerrno.h: Ditto.
* pge-boot/Gldtoa.h: Ditto.
* pge-boot/Glibc.h: Ditto.
* pge-boot/Glibm.h: Ditto.
* pge-boot/Gpge.cc: Ditto.
* pge-boot/Gtermios.h: Ditto.
* pge-boot/Gwrapc.h: Ditto.
gcc/objc/ChangeLog:
PR other/116613
* objc-act.cc: Add #define INCLUDE_MEMORY.
* objc-encoding.cc: Likewise.
* objc-gnu-runtime-abi-01.cc: Likewise.
* objc-lang.cc: Likewise.
* objc-next-runtime-abi-01.cc: Likewise.
* objc-next-runtime-abi-02.cc: Likewise.
* objc-runtime-shared-support.cc: Likewise.
gcc/objcp/ChangeLog:: Add #define INCLUDE_MEMORY.
PR other/116613
* objcp-decl.cc
* objcp-lang.cc: Likewise.
gcc/rust/ChangeLog:
PR other/116613
* resolve/rust-ast-resolve-expr.cc: Add #define INCLUDE_MEMORY.
* rust-attribs.cc: Likewise.
* rust-system.h: Likewise.
gcc/ChangeLog:
PR other/116613
* asan.cc: Add #define INCLUDE_MEMORY.
* attribs.cc: Likewise.
(attr_access::array_as_string): Use
diagnostic_context::clone_printer and use unique_ptr.
* auto-profile.cc: Add #define INCLUDE_MEMORY.
* calls.cc: Likewise.
* cfganal.cc: Likewise.
* cfgexpand.cc: Likewise.
* cfghooks.cc: Likewise.
* cfgloop.cc: Likewise.
* cgraph.cc: Likewise.
* cgraphclones.cc: Likewise.
* cgraphunit.cc: Likewise.
* collect-utils.cc: Likewise.
* collect2.cc: Likewise.
* common/config/aarch64/aarch64-common.cc: Likewise.
* common/config/arm/arm-common.cc: Likewise.
* common/config/avr/avr-common.cc: Likewise.
* config/aarch64/aarch64-cc-fusion.cc: Likewise.
* config/aarch64/aarch64-early-ra.cc: Likewise.
* config/aarch64/aarch64-sve-builtins.cc: Likewise.
* config/arc/arc.cc: Likewise.
* config/arm/aarch-common.cc: Likewise.
* config/arm/arm-mve-builtins.cc: Likewise.
* config/avr/avr-devices.cc: Likewise.
* config/avr/driver-avr.cc: Likewise.
* config/bpf/bpf.cc: Likewise.
* config/bpf/btfext-out.cc: Likewise.
* config/bpf/core-builtins.cc: Likewise.
* config/darwin.cc: Likewise.
* config/i386/driver-i386.cc: Likewise.
* config/i386/i386-builtins.cc: Likewise.
* config/i386/i386-expand.cc: Likewise.
* config/i386/i386-features.cc: Likewise.
* config/i386/i386-options.cc: Likewise.
* config/loongarch/loongarch-builtins.cc: Likewise.
* config/mingw/winnt-cxx.cc: Likewise.
* config/mingw/winnt.cc: Likewise.
* config/mips/mips.cc: Likewise.
* config/msp430/driver-msp430.cc: Likewise.
* config/nvptx/mkoffload.cc: Likewise.
* config/nvptx/nvptx.cc: Likewise.
* config/riscv/riscv-avlprop.cc: Likewise.
* config/riscv/riscv-vector-builtins.cc: Likewise.
* config/riscv/riscv-vsetvl.cc: Likewise.
* config/rs6000/driver-rs6000.cc: Likewise.
* config/rs6000/host-darwin.cc: Likewise.
* config/rs6000/rs6000-c.cc: Likewise.
* config/s390/s390-c.cc: Likewise.
* config/s390/s390.cc: Likewise.
* config/sol2-cxx.cc: Likewise.
* config/vms/vms-c.cc: Likewise.
* config/xtensa/xtensa-dynconfig.cc: Likewise.
* coroutine-passes.cc: Likewise.
* coverage.cc: Likewise.
* data-streamer-in.cc: Likewise.
* data-streamer-out.cc: Likewise.
* data-streamer.cc: Likewise.
* diagnostic-buffer.h (diagnostic_buffer::~diagnostic_buffer):
Delete.
(diagnostic_buffer::m_per_format_buffer): Use std::unique_ptr.
* diagnostic-client-data-hooks.h (make_compiler_data_hooks): Use
std::unique_ptr for return type.
* diagnostic-format-json.cc
(json_output_format::make_per_format_buffer): Likewise.
(diagnostic_output_format_init_json): Update for usage of
std::unique_ptr in set_output_format.
* diagnostic-format-sarif.cc
(sarif_output_format::make_per_format_buffer): Use std::unique_ptr
for return type.
(diagnostic_output_format_init_sarif): Update for usage of
std::unique_ptr.
(test_message_with_embedded_link): Likewise for set_urlifier.
* diagnostic-format-text.cc: Add #define INCLUDE_MEMORY. Include
"make-unique.h".
(diagnostic_text_output_format::set_buffer): Use std::unique_ptr.
* diagnostic-format-text.h
(diagnostic_text_output_format::set_buffer): Likewise.
* diagnostic-format.h
(diagnostic_output_format::make_per_format_buffer): Likewise.
* diagnostic-global-context.cc:
* diagnostic-macro-unwinding.cc: Likewise.
* diagnostic-show-locus.cc: Likewise.
* diagnostic-spec.cc: Likewise.
* diagnostic.cc (diagnostic_context::set_output_format): Use
std::unique_ptr for input.
(diagnostic_context::set_client_data_hooks): Likewise.
(diagnostic_context::set_option_manager): Likewise.
(diagnostic_context::set_urlifier): Likewise.
(diagnostic_context::set_diagnostic_buffer): Update for use of
std::unique_ptr.
(diagnostic_buffer::diagnostic_buffer): Likewise.
(diagnostic_buffer::~diagnostic_buffer): Delete.
* diagnostic.h: Complain if INCLUDE_MEMORY was not defined.
(diagnostic_context::set_output_format): Use std::unique_ptr for
input.
(diagnostic_context::set_client_data_hooks): Likewise.
(diagnostic_context::set_option_manager): Likewise.
(diagnostic_context::set_urlifier): Likewise.
(diagnostic_context::clone_printer): New.
(diagnostic_context::m_printer): Update comment.
(diagnostic_context::m_option_mgr): Likewise.
(diagnostic_context::m_urlifier): Likewise.
(diagnostic_context::m_edit_context_ptr): Likewise.
(diagnostic_context::m_output_format): Likewise.
(diagnostic_context::m_client_data_hooks): Likewise.
(diagnostic_context::m_theme): Likewise.
* digraph.cc: Add #define INCLUDE_MEMORY.
* dwarf2out.cc: Likewise.
* edit-context.cc: Likewise.
* except.cc: Likewise.
* expr.cc: Likewise.
* file-prefix-map.cc: Likewise.
* final.cc: Likewise.
* fwprop.cc: Likewise.
* gcc-plugin.h: Likewise.
* gcc-rich-location.cc: Likewise.
* gcc-urlifier.cc: Likewise. Add #include "make-unique.h".
(make_gcc_urlifier): Use std::unique_ptr and ::make_unique.
* gcc-urlifier.h (make_gcc_urlifier): Use std::unique_ptr.
* gcc.cc: Add #define INCLUDE_MEMORY. Include
"pretty-print-urlifier.h".
* gcov-dump.cc: Add #define INCLUDE_MEMORY.
* gcov-tool.cc: Likewise.
* gengtype.cc (open_base_files): Likewise to output.
* genmatch.cc: Likewise.
* gimple-fold.cc: Likewise.
* gimple-harden-conditionals.cc: Likewise.
* gimple-harden-control-flow.cc: Likewise.
* gimple-if-to-switch.cc: Likewise.
* gimple-lower-bitint.cc: Likewise.
* gimple-predicate-analysis.cc: Likewise.
* gimple-pretty-print.cc: Likewise.
* gimple-range-cache.cc: Likewise.
* gimple-range-edge.cc: Likewise.
* gimple-range-fold.cc: Likewise.
* gimple-range-gori.cc: Likewise.
* gimple-range-infer.cc: Likewise.
* gimple-range-op.cc: Likewise.
* gimple-range-path.cc: Likewise.
* gimple-range-phi.cc: Likewise.
* gimple-range-trace.cc: Likewise.
* gimple-range.cc: Likewise.
* gimple-ssa-backprop.cc: Likewise.
* gimple-ssa-sprintf.cc: Likewise.
* gimple-ssa-store-merging.cc: Likewise.
* gimple-ssa-strength-reduction.cc: Likewise.
* gimple-ssa-warn-access.cc: Likewise.
* gimple-ssa-warn-alloca.cc: Likewise.
* gimple-ssa-warn-restrict.cc: Likewise.
* gimple-streamer-in.cc: Likewise.
* gimple-streamer-out.cc: Likewise.
* gimple.cc: Likewise.
* gimplify.cc: Likewise.
* graph.cc: Likewise.
* graphviz.cc: Likewise.
* input.cc: Likewise.
* ipa-cp.cc: Likewise.
* ipa-devirt.cc: Likewise.
* ipa-fnsummary.cc: Likewise.
* ipa-free-lang-data.cc: Likewise.
* ipa-icf-gimple.cc: Likewise.
* ipa-icf.cc: Likewise.
* ipa-inline-analysis.cc: Likewise.
* ipa-inline.cc: Likewise.
* ipa-modref-tree.cc: Likewise.
* ipa-modref.cc: Likewise.
* ipa-param-manipulation.cc: Likewise.
* ipa-polymorphic-call.cc: Likewise.
* ipa-predicate.cc: Likewise.
* ipa-profile.cc: Likewise.
* ipa-prop.cc: Likewise.
* ipa-pure-const.cc: Likewise.
* ipa-reference.cc: Likewise.
* ipa-split.cc: Likewise.
* ipa-sra.cc: Likewise.
* ipa-strub.cc: Likewise.
* ipa-utils.cc: Likewise.
* langhooks.cc: Likewise.
* late-combine.cc: Likewise.
* lto-cgraph.cc: Likewise.
* lto-compress.cc: Likewise.
* lto-opts.cc: Likewise.
* lto-section-in.cc: Likewise.
* lto-section-out.cc: Likewise.
* lto-streamer-in.cc: Likewise.
* lto-streamer-out.cc: Likewise.
* lto-streamer.cc: Likewise.
* lto-wrapper.cc: Likewise. Include "make-unique.h".
(main): Use ::make_unique when creating option manager.
* multiple_target.cc: Likewise.
* omp-expand.cc: Likewise.
* omp-general.cc: Likewise.
* omp-low.cc: Likewise.
* omp-oacc-neuter-broadcast.cc: Likewise.
* omp-offload.cc: Likewise.
* omp-simd-clone.cc: Likewise.
* optc-gen.awk: Likewise in output.
* optc-save-gen.awk: Likewise in output.
* options-urls-cc-gen.awk: Likewise in output.
* opts-common.cc: Likewise.
* opts-global.cc: Likewise.
* opts.cc: Likewise.
* pair-fusion.cc: Likewise.
* passes.cc: Likewise.
* pointer-query.cc: Likewise.
* predict.cc: Likewise.
* pretty-print.cc (pretty_printer::clone): Use std::unique_ptr and
::make_unique.
* pretty-print.h: Complain if INCLUDE_MEMORY is not defined.
(pretty_printer::clone): Use std::unique_ptr.
* print-rtl.cc: Add #define INCLUDE_MEMORY.
* print-tree.cc: Likewise.
* profile-count.cc: Likewise.
* range-op-float.cc: Likewise.
* range-op-ptr.cc: Likewise.
* range-op.cc: Likewise.
* range.cc: Likewise.
* read-rtl-function.cc: Likewise.
* rtl-error.cc: Likewise.
* rtl-ssa/accesses.cc: Likewise.
* rtl-ssa/blocks.cc: Likewise.
* rtl-ssa/changes.cc: Likewise.
* rtl-ssa/functions.cc: Likewise.
* rtl-ssa/insns.cc: Likewise.
* rtl-ssa/movement.cc: Likewise.
* rtl-tests.cc: Likewise.
* sanopt.cc: Likewise.
* sched-rgn.cc: Likewise.
* selftest-diagnostic-path.cc: Likewise.
* selftest-diagnostic.cc: Likewise.
* splay-tree-utils.cc: Likewise.
* sreal.cc: Likewise.
* stmt.cc: Likewise.
* substring-locations.cc: Likewise.
* symtab-clones.cc: Likewise.
* symtab-thunks.cc: Likewise.
* symtab.cc: Likewise.
* text-art/box-drawing.cc: Likewise.
* text-art/canvas.cc: Likewise.
* text-art/ruler.cc: Likewise.
* text-art/selftests.cc: Likewise.
* text-art/theme.cc: Likewise.
* toplev.cc: Likewise. Include "make-unique.h".
(general_init): Use ::make_unique when setting option_manager.
* trans-mem.cc: Add #define INCLUDE_MEMORY.
* tree-affine.cc: Likewise.
* tree-call-cdce.cc: Likewise.
* tree-cfg.cc: Likewise.
* tree-chrec.cc: Likewise.
* tree-dfa.cc: Likewise.
* tree-diagnostic-client-data-hooks.cc: Include "make-unique.h".
(make_compiler_data_hooks): Use std::unique_ptr and ::make_unique.
* tree-diagnostic.cc: Add #define INCLUDE_MEMORY.
* tree-dump.cc: Likewise.
* tree-inline.cc: Likewise.
* tree-into-ssa.cc: Likewise.
* tree-logical-location.cc: Likewise.
* tree-nested.cc: Likewise.
* tree-nrv.cc: Likewise.
* tree-object-size.cc: Likewise.
* tree-outof-ssa.cc: Likewise.
* tree-pretty-print.cc: Likewise.
* tree-profile.cc: Likewise.
* tree-scalar-evolution.cc: Likewise.
* tree-sra.cc: Likewise.
* tree-ssa-address.cc: Likewise.
* tree-ssa-alias.cc: Likewise.
* tree-ssa-ccp.cc: Likewise.
* tree-ssa-coalesce.cc: Likewise.
* tree-ssa-copy.cc: Likewise.
* tree-ssa-dce.cc: Likewise.
* tree-ssa-dom.cc: Likewise.
* tree-ssa-forwprop.cc: Likewise.
* tree-ssa-ifcombine.cc: Likewise.
* tree-ssa-loop-ch.cc: Likewise.
* tree-ssa-loop-im.cc: Likewise.
* tree-ssa-loop-manip.cc: Likewise.
* tree-ssa-loop-niter.cc: Likewise.
* tree-ssa-loop-split.cc: Likewise.
* tree-ssa-math-opts.cc: Likewise.
* tree-ssa-operands.cc: Likewise.
* tree-ssa-phiprop.cc: Likewise.
* tree-ssa-pre.cc: Likewise.
* tree-ssa-propagate.cc: Likewise.
* tree-ssa-reassoc.cc: Likewise.
* tree-ssa-sccvn.cc: Likewise.
* tree-ssa-scopedtables.cc: Likewise.
* tree-ssa-sink.cc: Likewise.
* tree-ssa-strlen.cc: Likewise.
* tree-ssa-structalias.cc: Likewise.
* tree-ssa-ter.cc: Likewise.
* tree-ssa-uninit.cc: Likewise.
* tree-ssa.cc: Likewise.
* tree-ssanames.cc: Likewise.
* tree-stdarg.cc: Likewise.
* tree-streamer-in.cc: Likewise.
* tree-streamer-out.cc: Likewise.
* tree-streamer.cc: Likewise.
* tree-switch-conversion.cc: Likewise.
* tree-tailcall.cc: Likewise.
* tree-vrp.cc: Likewise.
* tree.cc: Likewise.
* ubsan.cc: Likewise.
* value-pointer-equiv.cc: Likewise.
* value-prof.cc: Likewise.
* value-query.cc: Likewise.
* value-range-pretty-print.cc: Likewise.
* value-range-storage.cc: Likewise.
* value-range.cc: Likewise.
* value-relation.cc: Likewise.
* var-tracking.cc: Likewise.
* varpool.cc: Likewise.
* vr-values.cc: Likewise.
* wide-int-print.cc: Likewise.
gcc/testsuite/ChangeLog:
PR other/116613
* gcc.dg/plugin/diagnostic_group_plugin.c: Update for use of
std::unique_ptr.
* gcc.dg/plugin/diagnostic_plugin_xhtml_format.c: Likewise.
* gcc.dg/plugin/ggcplug.c: Likewise.
libgcc/ChangeLog:
PR other/116613
* libgcov-util.c: Add #define INCLUDE_MEMORY.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
Co-authored-by: Gaius Mulley <gaiusmod2@gmail.com>
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
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Forgot to regenerate urls after -Wleading-whitespace addition.
2024-10-23 Jakub Jelinek <jakub@redhat.com>
* c.opt.urls: Regenerate.
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The following patch on top of the r15-4346 patch adds
-Wleading-whitespace= warning option.
This warning doesn't care how much one actually indents which line
in the source (that is something that can't be easily done in the
preprocessor without doing syntactic analysis), but just simple checks
on what kind of whitespace is used in the indentation.
I think it is still useful to get warnings about such issues early,
while git diagnoses some of it in patches (e.g. the tab after space
case), getting the warnings earlier might help avoiding such issues
sooner.
There are projects which ban use of tabs and require just spaces,
others which require indentation just with horizontal tabs, and finally
projects which want indentation with tabs for multiples of tabstop size
followed by spaces (fewer than tabstop size), like GCC.
For all 3 kinds the warning diagnoses indentation with '\v' or '\f'
characters (unless line contains just whitespace), and for the last one
also cases where a space in the indentation is followed by horizontal
tab or where there are N or more consecutive spaces in the indentation
(for -ftabstop=N).
BTW, for additional testing I've enabled the warnings (without -Werror
for them) in stage3. There are many warnings (both trailing and leading
whitespace), some of them something that can be easily fixed in the headers
or source files, but others with whitespace issues in generated sources,
so if we enable the warnings, either we'd need to adjust the generators
or disable the warnings in (some of the) generated files.
2024-10-23 Jakub Jelinek <jakub@redhat.com>
libcpp/
* include/cpplib.h (struct cpp_options): Add
cpp_warn_leading_whitespace and cpp_tabstop members.
(enum cpp_warning_reason): Add CPP_W_LEADING_WHITESPACE.
* internal.h (struct _cpp_line_note): Document new
line note kinds.
* init.cc (cpp_create_reader): Set cpp_tabstop to 8.
* lex.cc (find_leading_whitespace_issues): New function.
(_cpp_clean_line): Use it.
(_cpp_process_line_notes): Handle 'L', 'S' and 'T' line notes.
(lex_raw_string): Clear type on 'L', 'S' and 'T' line notes
inside of raw string literals.
gcc/
* doc/invoke.texi (Wleading-whitespace=): Document.
gcc/c-family/
* c.opt (Wleading-whitespace=): New option.
* c-opts.cc (c_common_post_options): Set cpp_opts->cpp_tabstop
to global_dc->m_tabstop.
gcc/testsuite/
* c-c++-common/cpp/Wleading-whitespace-1.c: New test.
* c-c++-common/cpp/Wleading-whitespace-2.c: New test.
* c-c++-common/cpp/Wleading-whitespace-3.c: New test.
* c-c++-common/cpp/Wleading-whitespace-4.c: New test.
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In the following testcases, we ICE on all 4 function calls.
The problem is using TYPE_PRECISION on vector types (but guess it
would be similarly problematic on structures/unions/arrays).
The test only differentiates between suggestion what to do, whether
to supply explicit size because sizeof (*p) for
{,{,un}signed }char *p is not very likely what the user want, or
dereferencing the pointer, so I think limiting that suggestion
to integral types is ok.
2024-10-22 Jakub Jelinek <jakub@redhat.com>
PR c/117230
* c-warn.cc (sizeof_pointer_memaccess_warning): Only compare
TYPE_PRECISION of TREE_TYPE (type) to precision of char if
TREE_TYPE (type) is integral type.
* c-c++-common/Wsizeof-pointer-memaccess5.c: New test.
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The following patch partially implements the N3353 paper.
In particular, it adds support for the delimited escape sequences
(\u{123}, \x{123}, \o{123}) which were added already for C++23,
all I had to do is split the delimited escape sequence guarding from
named universal character escape sequence guards
(\N{LATIN CAPITAL LETTER C WITH CARON}), which C++23 has but C2Y doesn't
and emit different diagnostics for C from C++ for the delimited escape
sequences.
And it adds support for the new style of octal literals, 0o137 or 0O1777.
I have so far added that just for C and not C++, because I have no idea
whether C++ will want to handle it similarly.
What the patch doesn't do is any kind of diagnostics for obsoletion of
\137 or 0137, as discussed in the PR, I think it is way too early for that.
Perhaps some non-default warning later on.
2024-10-17 Jakub Jelinek <jakub@redhat.com>
PR c/117028
libcpp/
* include/cpplib.h (struct cpp_options): Add named_uc_escape_seqs,
octal_constants and cpp_warn_c23_c2y_compat members.
(enum cpp_warning_reason): Add CPP_W_C23_C2Y_COMPAT enumerator.
* init.cc (struct lang_flags): Add named_uc_escape_seqs and
octal_constants bit-fields.
(lang_defaults): Add initializers for them into the table.
(cpp_set_lang): Initialize named_uc_escape_seqs and octal_constants.
(cpp_create_reader): Initialize cpp_warn_c23_c2y_compat to -1.
* charset.cc (_cpp_valid_ucn): Test
CPP_OPTION (pfile, named_uc_escape_seqs) rather than
CPP_OPTION (pfile, delimited_escape_seqs) in \N{} related tests.
Change wording of C cpp_pedwarning for \u{} and emit
-Wc23-c2y-compat warning for it too if needed. Formatting fixes.
(convert_hex): Change wording of C cpp_pedwarning for \u{} and emit
-Wc23-c2y-compat warning for it too if needed.
(convert_oct): Likewise.
* expr.cc (cpp_classify_number): Handle C2Y 0o or 0O prefixed
octal constants.
(cpp_interpret_integer): Likewise.
gcc/c-family/
* c.opt (Wc23-c2y-compat): Add CPP and CppReason parameters.
* c-opts.cc (set_std_c2y): Use CLK_STDC2Y or CLK_GNUC2Y rather
than CLK_STDC23 and CLK_GNUC23. Formatting fix.
* c-lex.cc (interpret_integer): Handle C2Y 0o or 0O prefixed
and wb/WB/uwb/UWB suffixed octal constants.
gcc/testsuite/
* gcc.dg/bitint-112.c: New test.
* gcc.dg/c23-digit-separators-1.c: Add _Static_assert for
valid binary constant with digit separator.
* gcc.dg/c23-octal-constants-1.c: New test.
* gcc.dg/c23-octal-constants-2.c: New test.
* gcc.dg/c2y-digit-separators-1.c: New test.
* gcc.dg/c2y-digit-separators-2.c: New test.
* gcc.dg/c2y-octal-constants-1.c: New test.
* gcc.dg/c2y-octal-constants-2.c: New test.
* gcc.dg/c2y-octal-constants-3.c: New test.
* gcc.dg/cpp/c23-delimited-escape-seq-1.c: New test.
* gcc.dg/cpp/c23-delimited-escape-seq-2.c: New test.
* gcc.dg/cpp/c2y-delimited-escape-seq-1.c: New test.
* gcc.dg/cpp/c2y-delimited-escape-seq-2.c: New test.
* gcc.dg/cpp/c2y-delimited-escape-seq-3.c: New test.
* gcc.dg/cpp/c2y-delimited-escape-seq-4.c: New test.
* gcc.dg/octal-constants-1.c: New test.
* gcc.dg/octal-constants-2.c: New test.
* gcc.dg/octal-constants-3.c: New test.
* gcc.dg/octal-constants-4.c: New test.
* gcc.dg/system-octal-constants-1.c: New test.
* gcc.dg/system-octal-constants-1.h: New file.
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While working on PR117028 C2Y changes, I've noticed weird ternary
operator formatting (operand1 ? operand2: operand3).
The usual formatting is operand1 ? operand2 : operand3
where we have around 18000+ cases of that (counting only what fits
on one line) and
indent -nbad -bap -nbc -bbo -bl -bli2 -bls -ncdb -nce -cp1 -cs -di2 -ndj \
-nfc1 -nfca -hnl -i2 -ip5 -lp -pcs -psl -nsc -nsob
documented in
https://www.gnu.org/prep/standards/html_node/Formatting.html#Formatting
does the same.
Some code was even trying to save space as much as possible and used
operand1?operand2:operand3 or
operand1 ? operand2:operand3
Today I've grepped for such cases (the grep was '?.*[^ ]:' and I had to
skim through various false positives with that where the : matched e.g.
stuff inside of strings, or *.md pattern macros or :: scope) and the
following patch is a fix for what I found.
2024-10-16 Jakub Jelinek <jakub@redhat.com>
gcc/
* attribs.cc (lookup_scoped_attribute_spec): ?: operator formatting
fixes.
* basic-block.h (FOR_BB_INSNS_SAFE): Likewise.
* cfgcleanup.cc (outgoing_edges_match): Likewise.
* cgraph.cc (cgraph_node::dump): Likewise.
* config/arc/arc.cc (gen_acc1, gen_acc2): Likewise.
* config/arc/arc.h (CLASS_MAX_NREGS, CONSTANT_ADDRESS_P): Likewise.
* config/arm/arm.cc (arm_print_operand): Likewise.
* config/cris/cris.md (*b<rnzcond:code><mode>): Likewise.
* config/darwin.cc (darwin_asm_declare_object_name,
darwin_emit_common): Likewise.
* config/darwin-driver.cc (darwin_driver_init): Likewise.
* config/epiphany/epiphany.md (call, sibcall, call_value,
sibcall_value): Likewise.
* config/i386/i386.cc (gen_push2): Likewise.
* config/i386/i386.h (ix86_cur_cost): Likewise.
* config/i386/openbsdelf.h (FUNCTION_PROFILER): Likewise.
* config/loongarch/loongarch-c.cc (loongarch_cpu_cpp_builtins):
Likewise.
* config/loongarch/loongarch-cpu.cc (fill_native_cpu_config):
Likewise.
* config/riscv/riscv.cc (riscv_union_memmodels): Likewise.
* config/riscv/zc.md (*mva01s<X:mode>, *mvsa01<X:mode>): Likewise.
* config/rs6000/mmintrin.h (_mm_cmpeq_pi8, _mm_cmpgt_pi8,
_mm_cmpeq_pi16, _mm_cmpgt_pi16, _mm_cmpeq_pi32, _mm_cmpgt_pi32):
Likewise.
* config/v850/predicates.md (pattern_is_ok_for_prologue): Likewise.
* config/xtensa/constraints.md (d, C, W): Likewise.
* coverage.cc (coverage_begin_function, build_init_ctor,
build_gcov_exit_decl): Likewise.
* df-problems.cc (df_create_unused_note): Likewise.
* diagnostic.cc (diagnostic_set_caret_max_width): Likewise.
* diagnostic-path.cc (path_summary::path_summary): Likewise.
* expr.cc (expand_expr_divmod): Likewise.
* gcov.cc (format_gcov): Likewise.
* gcov-dump.cc (dump_gcov_file): Likewise.
* genmatch.cc (main): Likewise.
* incpath.cc (remove_duplicates, register_include_chains): Likewise.
* ipa-devirt.cc (dump_odr_type): Likewise.
* ipa-icf.cc (sem_item_optimizer::merge_classes): Likewise.
* ipa-inline.cc (inline_small_functions): Likewise.
* ipa-polymorphic-call.cc (ipa_polymorphic_call_context::dump):
Likewise.
* ipa-sra.cc (create_parameter_descriptors): Likewise.
* ipa-utils.cc (find_always_executed_bbs): Likewise.
* predict.cc (predict_loops): Likewise.
* selftest.cc (read_file): Likewise.
* sreal.h (SREAL_SIGN, SREAL_ABS): Likewise.
* tree-dump.cc (dequeue_and_dump): Likewise.
* tree-ssa-ccp.cc (bit_value_binop): Likewise.
gcc/c-family/
* c-opts.cc (c_common_init_options, c_common_handle_option,
c_common_finish, set_std_c89, set_std_c99, set_std_c11,
set_std_c17, set_std_c23, set_std_cxx98, set_std_cxx11,
set_std_cxx14, set_std_cxx17, set_std_cxx20, set_std_cxx23,
set_std_cxx26): ?: operator formatting fixes.
gcc/cp/
* search.cc (lookup_member): ?: operator formatting fixes.
* typeck.cc (cp_build_modify_expr): Likewise.
libcpp/
* expr.cc (interpret_float_suffix): ?: operator formatting fixes.
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This patch actually optimizes #embed, so far in C.
For a simple testcase (for 494447200 bytes long cc1plus):
cat embed-11.c
unsigned char a[] = {
#embed "cc1plus"
};
time ./xgcc -B ./ -S -std=c23 -O2 embed-11.c
real 0m13.647s
user 0m7.157s
sys 0m2.597s
time ./xgcc -B ./ -c -std=c23 -O2 embed-11.c
real 0m28.649s
user 0m26.653s
sys 0m1.958s
and when configured against binutils with .base64 support
time ./xgcc -B ./ -S -std=c23 -O2 embed-11.c
real 0m4.283s
user 0m2.288s
sys 0m0.859s
time ./xgcc -B ./ -c -std=c23 -O2 embed-11.c
real 0m6.888s
user 0m5.876s
sys 0m1.002s
(all times with --enable-checking=yes,rtl,extra compiler).
Even just
./cc1plus -E -o embed-11.i embed-11.c
(which doesn't have this optimization yet and so preprocesses it as
1.3GB preprocessed file) needed almost 25GB of compile time RAM (but
preprocessed fine).
And compiling that embed-11.i with -std=c23 -O0 by unpatched gcc
I gave up after 400 seconds when it already ate 45GB of RAM and didn't
produce a single byte into embed-11.s yet.
The patch introduces a new CPP_EMBED token which contains raw memory image
virtually representing a sequence of int literals.
To simplify the parsing complexities, the preprocessor guarantees CPP_EMBED
is only emitted if there are 4+ (it actually does that for 64+ right now)
literals in the sequence and emits CPP_NUMBER CPP_COMMA CPP_EMBED CPP_COMMA
CPP_NUMBER tokens (with more CPP_EMBED separated by CPP_COMMA if it is
longer than 2GB, as STRING_CSTs in GCC and also the new RAW_DATA_CST etc.
are limited to INT_MAX elements). The main reason is that the preprocessor
doesn't really know in which context #embed directive appears, there could
be e.g.
{ 25 *
#embed "whatever"
* 2 - 15 }
or similar and dealing with this special case deep in the expression parsing
is undesirable.
With the CPP_NUMBERs around it, I believe in the C FE the only places which
need handling of the CPP_EMBED token are initializer parsing (that is the
only one which adds actual optimizations for it), comma expressions (I
believe nothing really cares whether it is 25,13,95 or
25,13,0,1,2,3,4,5,6,7,8,9,10,13,95 etc., so besides the 2 outer CPP_NUMBER
the parsing just adds one INTEGER_CST to the comma expression, I doubt users
want to be spammed with millions of -Wunused warnings per #embed),
whatever uses c_parser_expr_list (function calls, attribute arguments,
OpenMP sizes clause argument, OpenACC tile clause argument and whatever uses
c_parser_get_builtin_args (mainly for __builtin_shufflevector). Please correct
me if I'm wrong.
The patch introduces a RAW_DATA_CST tree code, which can then be used inside
of array CONSTRUCTOR elt values. In some sense RAW_DATA_CST is similar to
STRING_CST, but right now STRING_CST is used only if the whole array
initializer is that constant, while RAW_DATA_CST at index idx (should be
always INTEGER_CST index, another advantage of the CPP_NUMBER around is that
[30 ... 250] =
#embed "whatever"
really does what it would do with a integer sequence there) stands for
[idx] = RAW_DATA_POINTER (val)[0],
[idx+1] = RAW_DATA_POINTER (val)[1],
...
[idx+RAW_DATA_LENGTH (val)-1] = RAW_DATA_POINTER (val)[RAW_DATA_LENGTH (val)-1].
Another important thing is that unlike STRING_CST which has the data
embedded in it RAW_DATA_CST doesn't own the data, it has RAW_DATA_OWNER
which owns the data (that can be a STRING_CST, e.g. used for PCH or LTO
after reading LTO in) or another RAW_DATA_CST (with NULL RAW_DATA_OWNER,
standing for data owned by libcpp buffers). The advantage is that it can be
cheaply peeled off, or split into multiple smaller pieces, e.g. if one uses
designated initializer to store something into the middle of a 10GB #embed
array, in no case we need to actually copy data around for that.
Right now RAW_DATA_CST is only used in initializers of integral arrays where
the integer type has (host) CHAR_BIT precision, so usually char/signed
char/unsigned char (for C++ later maybe std::byte); in theory we could say
allocate 4 times as big buffer for conversions to int array and depending
on endianity and storage order reversal etc., but I'm not sure if that is
something that will be actually needed in the wild.
And an optimization inside of c-common.cc attempts to undo that CPP_NUMBER
CPP_EMBED CPP_NUMBER division in case one uses #embed the usual way and
doesn't use the boundary literals in weird ways and the values there match
the surrounding bytes in the owner buffer.
For LTO, in order to avoid copying perhaps gigabytes long data around,
the hacks in the streamer out/in cause the data owned by libcpp to be
streamed right into the stream and streamed back as a STRING_CST which
owns the data.
2024-10-16 Jakub Jelinek <jakub@redhat.com>
libcpp/
* include/cpplib.h (TTYPE_TABLE): Add CPP_EMBED token type.
* files.cc (finish_embed): For limit >= 64 and C preprocessing
instead of emitting CPP_NUMBER CPP_COMMA separated sequence for the
whole embed emit it just for the first and last byte and in between
emit a CPP_EMBED token or tokens if too large.
gcc/
* treestruct.def (TS_RAW_DATA_CST): New.
* tree.def (RAW_DATA_CST): New tree code.
* tree-core.h (struct tree_raw_data): New type.
(union tree_node): Add raw_data_cst member.
* tree.h (RAW_DATA_LENGTH, RAW_DATA_POINTER, RAW_DATA_OWNER): Define.
(gt_ggc_mx, gt_pch_nx): Declare overloads for tree_raw_data *.
* tree.cc (tree_node_structure_for_code): Handle RAW_DATA_CST.
(initialize_tree_contains_struct): Handle TS_RAW_DATA_CST.
(tree_code_size): Handle RAW_DATA_CST.
(initializer_zerop): Likewise.
(gt_ggc_mx, gt_pch_nx): Define overloads for tree_raw_data *.
* gimplify.cc (gimplify_init_ctor_eval): Handle RAW_DATA_CST.
* fold-const.cc (operand_compare::operand_equal_p): Handle
RAW_DATA_CST. Formatting fix.
(operand_compare::hash_operand): Handle RAW_DATA_CST.
(native_encode_initializer): Likewise.
(get_array_ctor_element_at_index): Likewise.
(fold): Likewise.
* gimple-fold.cc (fold_array_ctor_reference): Likewise. Formatting
fix.
* varasm.cc (const_hash_1): Handle RAW_DATA_CST.
(initializer_constant_valid_p_1): Likewise.
(array_size_for_constructor): Likewise.
(output_constructor_regular_field): Likewise.
* expr.cc (categorize_ctor_elements_1): Likewise.
(expand_expr_real_1) <case ARRAY_REF>: Punt for RAW_DATA_CST.
* tree-streamer.cc (streamer_check_handled_ts_structures): Mark
TS_RAW_DATA_CST as handled.
* tree-streamer-in.cc (streamer_alloc_tree): Handle RAW_DATA_CST.
(lto_input_ts_raw_data_cst_tree_pointers): New function.
(streamer_read_tree_body): Call it for RAW_DATA_CST.
* tree-streamer-out.cc (write_ts_raw_data_cst_tree_pointers): New
function.
(streamer_write_tree_body): Call it for RAW_DATA_CST.
(streamer_write_tree_header): Handle RAW_DATA_CST.
* lto-streamer-out.cc (DFS::DFS_write_tree_body): Handle RAW_DATA_CST.
* tree-pretty-print.cc (dump_generic_node): Likewise.
gcc/c-family/
* c-ppoutput.cc (token_streamer::stream): Add special code to spell
CPP_EMBED token.
* c-lex.cc (c_lex_with_flags): Handle CPP_EMBED. Formatting fix.
* c-common.cc (c_parse_error): Handle CPP_EMBED.
(braced_list_to_string): Optimize RAW_DATA_CST surrounded by
INTEGER_CSTs which match some bytes before or after RAW_DATA_CST in
its owner.
gcc/c/
* c-parser.cc (c_parser_braced_init): Handle CPP_EMBED.
(c_parser_get_builtin_args): Likewise.
(c_parser_expression): Likewise.
(c_parser_expr_list): Likewise.
* c-typeck.cc (digest_init): Handle RAW_DATA_CST. Formatting fix.
(init_node_successor): New function.
(add_pending_init): Handle RAW_DATA_CST.
(set_nonincremental_init): Formatting fix.
(output_init_element): Handle RAW_DATA_CST. Formatting fixes.
(maybe_split_raw_data): New function.
(process_init_element): Use maybe_split_raw_data. Handle
RAW_DATA_CST.
gcc/testsuite/
* c-c++-common/cpp/embed-20.c: New test.
* c-c++-common/cpp/embed-21.c: New test.
* c-c++-common/cpp/embed-28.c: New test.
* gcc.dg/cpp/embed-8.c: New test.
* gcc.dg/cpp/embed-9.c: New test.
* gcc.dg/cpp/embed-10.c: New test.
* gcc.dg/cpp/embed-11.c: New test.
* gcc.dg/cpp/embed-12.c: New test.
* gcc.dg/cpp/embed-13.c: New test.
* gcc.dg/cpp/embed-14.c: New test.
* gcc.dg/cpp/embed-15.c: New test.
* gcc.dg/cpp/embed-16.c: New test.
* gcc.dg/pch/embed-1.c: New test.
* gcc.dg/pch/embed-1.hs: New test.
* gcc.dg/lto/embed-1_0.c: New test.
* gcc.dg/lto/embed-1_1.c: New test.
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With the addition of the 'counted_by' attribute and its wide roll-out
within the Linux kernel, a use case has been found that would be very
nice to have for object allocators: being able to set the counted_by
counter variable without knowing its name.
For example, given:
struct foo {
...
int counter;
...
struct bar array[] __attribute__((counted_by (counter)));
} *p;
The existing Linux object allocators are roughly:
#define MAX(A, B) (A > B) ? (A) : (B)
#define alloc(P, FAM, COUNT) ({ \
__auto_type __p = &(P); \
size_t __size = MAX (sizeof(*P),
__builtin_offsetof (__typeof(*P), FAM)
+ sizeof (*(P->FAM)) * COUNT); \
*__p = kmalloc(__size); \
})
Right now, any addition of a counted_by annotation must also
include an open-coded assignment of the counter variable after
the allocation:
p = alloc(p, array, how_many);
p->counter = how_many;
In order to avoid the tedious and error-prone work of manually adding
the open-coded counted-by intializations everywhere in the Linux
kernel, a new GCC builtin __builtin_counted_by_ref will be very useful
to be added to help the adoption of the counted-by attribute.
-- Built-in Function: TYPE __builtin_counted_by_ref (PTR)
The built-in function '__builtin_counted_by_ref' checks whether the
array object pointed by the pointer PTR has another object
associated with it that represents the number of elements in the
array object through the 'counted_by' attribute (i.e. the
counted-by object). If so, returns a pointer to the corresponding
counted-by object. If such counted-by object does not exist,
returns a null pointer.
This built-in function is only available in C for now.
The argument PTR must be a pointer to an array. The TYPE of the
returned value is a pointer type pointing to the corresponding
type of the counted-by object or a void pointer type in case of a
null pointer being returned.
With this new builtin, the central allocator could be updated to:
#define MAX(A, B) (A > B) ? (A) : (B)
#define alloc(P, FAM, COUNT) ({ \
__auto_type __p = &(P); \
__auto_type __c = (COUNT); \
size_t __size = MAX (sizeof (*(*__p)),\
__builtin_offsetof (__typeof(*(*__p)),FAM) \
+ sizeof (*((*__p)->FAM)) * __c); \
if ((*__p = kmalloc(__size))) { \
__auto_type ret = __builtin_counted_by_ref((*__p)->FAM); \
*_Generic(ret, void *: &(size_t){0}, default: ret) = __c; \
} \
})
And then structs can gain the counted_by attribute without needing
additional open-coded counter assignments for each struct, and
unannotated structs could still use the same allocator.
PR c/116016
gcc/c-family/ChangeLog:
* c-common.cc: Add new __builtin_counted_by_ref.
* c-common.h (enum rid): Add RID_BUILTIN_COUNTED_BY_REF.
gcc/c/ChangeLog:
* c-decl.cc (names_builtin_p): Add RID_BUILTIN_COUNTED_BY_REF.
* c-parser.cc (has_counted_by_object): New routine.
(get_counted_by_ref): New routine.
(c_parser_postfix_expression): Handle New RID_BUILTIN_COUNTED_BY_REF.
* c-tree.h: New routine handle_counted_by_for_component_ref.
* c-typeck.cc (handle_counted_by_for_component_ref): New routine.
(build_component_ref): Call the new routine.
gcc/ChangeLog:
* doc/extend.texi: Add documentation for __builtin_counted_by_ref.
gcc/testsuite/ChangeLog:
* gcc.dg/builtin-counted-by-ref-1.c: New test.
* gcc.dg/builtin-counted-by-ref.c: New test.
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The following patch implements the C2Y N3355 - Named Loops paper.
I've tried to implement it lazily, rather than proactively e.g. push
labels to a vector just in case the following statement is iteration
statement, switch statement or one of the loop pragmas followed by
iteration statement the patch just notes the last statement in
cur_stmt_list if any before c_parser_label/c_parser_all_labels and
passes it down to the iteration/switch statement parsing routines,
which then search backward for LABEL_EXPRs before they reach the given
stop statement.
The patch then adds one extra argument to
{FOR,WHILE,DO,BREAK,CONTINUE,SWITCH}_STMT, which is set to a canonical
name LABEL_DECL (the last named label before the construct).
If one just refers to the innermost construct with a fancy name,
it is in the end parsed the same as break/continue without an identifier
(i.e. NULL_TREE argument), and if a loop or switch has name(s) but
break/continue to that isn't used, the name is set to NULL_TREE.
At c-gimplify.cc time the name is then pushed into a hash map mapping
it to a pair of labels.
I've implemented it also for ObjC foreach loops (which have break/continue
handled during parsing, not during c-gimplify.cc).
As for OpenMP/OpenACC, the patch right now pretends no OpenMP loop
has a name, until something different is decided in the standard.
As shown in the testcases, most break identifier/continue identifier
cases aren't really useful in OpenMP code, a break identifier or
continue identifier jumping out of an OpenMP region is certainly invalid
(such regions have to be single entry single exit, so escaping it
through goto/break lab/continue lab violates that), similarly break
is disallowed in the innermost OpenMP nested loop, just continue
is allowed, so the only thing that would make sense for OpenMP (second
gomp testcase) would be allowing to give name to the innermost
loop in OpenMP canonical loop nest (except that labels aren't allowed
in the syntax right now in between the loops) and only continue to
that label. For collapse(1) loops that would be a label before
the #pragma or [[omp::directive (parallel for)]] etc. And of course,
what already works fine in the patch is break/continue to non-OpenMP loops
nested in OpenMP loops.
2024-10-12 Jakub Jelinek <jakub@redhat.com>
PR c/117022
gcc/c-family/
* c-common.def (FOR_STMT, WHILE_STMT, DO_STMT, BREAK_STMT,
CONTINUE_STMT, SWITCH_STMT): Add an extra operand, *_NAME
and document it.
* c-common.h (bc_hash_map_t): New typedef.
(struct bc_state): Add bc_hash_map member.
(WHILE_NAME, DO_NAME, FOR_NAME, BREAK_NAME, CONTINUE_NAME,
SWITCH_STMT_NAME): Define.
* c-pretty-print.cc (c_pretty_printer::statement): Print
BREAK_STMT or CONTINUE_STMT operand if any.
* c-gimplify.cc (bc_hash_map): New static variable.
(note_named_bc, release_named_bc): New functions.
(save_bc_state): Save and clear bc_hash_map.
(restore_bc_state): Assert NULL and restore bc_hash_map.
(genericize_c_loop): Add NAME argument, call note_named_bc
and release_named_bc if non-NULL around the body walk.
(genericize_for_stmt, genericize_while_stmt, genericize_do_stmt):
Adjust callers of it.
(genericize_switch_stmt): Rename break_block variable to blab.
Call note_named_bc and release_named_bc if SWITCH_STMT_NAME is
non-NULL around the body walk.
(genericize_continue_stmt): Handle non-NULL CONTINUE_NAME.
(genericize_break_stmt): Handle non-NULL BREAK_NAME.
(c_genericize): Delete and clear bc_hash_map.
gcc/c/
* c-tree.h: Implement C2Y N3355 - Named loops.
(C_DECL_LOOP_NAME, C_DECL_SWITCH_NAME, C_DECL_LOOP_SWITCH_NAME_VALID,
C_DECL_LOOP_SWITCH_NAME_USED, IN_NAMED_STMT): Define.
(c_get_loop_names, c_release_loop_names, c_finish_bc_name): Declare.
(c_start_switch): Add NAME argument.
(c_finish_bc_stmt): Likewise.
* c-lang.h (struct language_function): Add loop_names and
loop_names_hash members.
* c-parser.cc (c_parser_external_declaration,
c_parser_declaration_or_fndef, c_parser_struct_or_union_specifier,
c_parser_parameter_declaration): Adjust c_parser_pragma caller.
(get_before_labels): New function.
(c_parser_compound_statement_nostart): Call get_before_labels when
needed, adjust c_parser_pragma and c_parser_statement_after_labels
callers.
(c_parser_statement): Call get_before_labels first and pass it to
c_parser_statement_after_labels.
(c_parser_bc_name): New function.
(c_parser_statement_after_labels): Add BEFORE_LABELS argument. Pass
it down to c_parser_switch_statement, c_parser_while_statement,
c_parser_do_statement, c_parser_for_statement and c_parser_pragma.
Call c_parser_bc_name for RID_BREAK and RID_CONTINUE and pass it as
another argument to c_finish_bc_stmt.
(c_parser_if_body, c_parser_else_body): Call get_before_labels
early and pass it to c_parser_statement_after_labels.
(c_parser_switch_statement): Add BEFORE_LABELS argument. Call
c_get_loop_names, if named, pass switch_name to c_start_switch,
mark it valid and set IN_NAMED_STMT bit in in_statement before
parsing body, otherwise clear IN_NAMED_STMT bit before that parsing.
Run c_release_loop_names at the end.
(c_parser_while_statement, c_parser_do_statement,
c_parser_for_statement): Add BEFORE_LABELS argument. Call
c_get_loop_names, if named, mark it valid and set IN_NAMED_STMT bit
in in_statement before parsing body, otherwise clear IN_NAMED_STMT
before that parsing, arrange for the loop name if used to be
another *_STMT argument.
(c_parser_objc_class_instance_variables,
c_parser_objc_methodprotolist): Adjust c_parser_pragma callers.
(c_parser_pragma): Add BEFORE_LABELS argument. Pass it down to
c_parser_for_statement, c_parser_while_statement or
c_parser_do_statement.
(c_parser_omp_loop_nest, c_maybe_parse_omp_decl): Adjust
c_parser_pragma callers.
* c-decl.cc (loop_names, loop_names_hash): New static variables.
(add_stmt): Set STATEMENT_LIST_HAS_LABEL after push_stmt_list rather
than before it.
(c_push_function_context): Save and clear loop_names and
loop_names_hash.
(c_pop_function_context): Release or delete, restore and clear
loop_names and loop_names_hash.
(c_get_loop_names, c_release_loop_names, c_finish_bc_name): New
functions.
* c-typeck.cc (c_start_switch): Add SWITCH_NAME argument, pass it down
to build_stmt.
(c_finish_bc_stmt): Add NAME argument. Mark of IN_NAMED_STMT bit
of in_statement in swtiches. Use label for IN_OBJC_FOREACH only if
name is NULL. If name is non-NULL and C_DECL_LOOP_NAME and
C_DECL_SWITCH_NAME are both set, assume outer ObjC foreach and
dig labels from DECL_CHAIN of name. Pass NAME to build_stmt
otherwise.
gcc/cp/
* semantics.cc (begin_while_stmt, begin_do_stmt, begin_for_stmt,
finish_break_stmt, finish_continue_stmt, begin_switch_stmt): Pass
another NULL_TREE to build_stmt calls.
gcc/testsuite/
* gcc.dg/c23-named-loops-1.c: New test.
* gcc.dg/c23-named-loops-5.c: New test.
* gcc.dg/c2y-named-loops-1.c: New test.
* gcc.dg/c2y-named-loops-2.c: New test.
* gcc.dg/c2y-named-loops-4.c: New test.
* gcc.dg/c2y-named-loops-5.c: New test.
* gcc.dg/c2y-named-loops-6.c: New test.
* gcc.dg/c2y-named-loops-7.c: New test.
* gcc.dg/gnu99-named-loops-1.c: New test.
* gcc.dg/gnu99-named-loops-2.c: New test.
* gcc.dg/gnu99-named-loops-3.c: New test.
* gcc.dg/gnu99-named-loops-4.c: New test.
* gcc.dg/gnu2y-named-loops-3.c: New test.
* gcc.dg/gomp/named-loops-1.c: New test.
* gcc.dg/gomp/named-loops-2.c: New test.
* objc.dg/named-loops-1.m: New test.
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I forgot to regenerate the c.opt.urls files after adding the opindex for changes-meaning.
Fixed thusly.
gcc/c-family/ChangeLog:
PR c++/117157
* c.opt.urls: Regenerate.
Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>
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Trailing blanks is something even git diff diagnoses; while it is a coding
style issue, if it is so common that git diff diagnoses it, I think it could
be useful to various projects to check that at compile time.
Dunno if it should be included in -Wextra, currently it isn't, and due to
tons of trailing whitespace in our sources, haven't enabled it for when
building gcc itself either.
Note, git diff also diagnoses indentation with tab following space, wonder
if we couldn't have trivial warning options where one would simply ask for
checking of indentation with no tabs, just spaces vs. indentation with
tabs followed by spaces (but never tab width or more spaces in the
indentation). I think that would be easy to do also on the libcpp side.
Checking how much something should be exactly indented requires syntax
analysis (at least some limited one) and can consider columns of first token
on line, but what the exact indentation blanks were is something only libcpp
knows.
On Thu, Sep 19, 2024 at 08:17:24AM +0200, Richard Biener wrote:
> Generally I like diagnosing this early. For the above I'd say -Wtrailing-whitespace=
> with a set of things to diagnose (and a sane default - just spaces and tabs - for
> -Wtrailiing-whitespace) would be nice. As for naming possibly follow the
> is{space,blank,cntrl} character classifications? If those are a good
> fit, that is.
The patch currently allows blank (' ' '\t') and space (' ' '\t' '\f' '\v'),
cntrl not yet added, not anything non-ASCII, but in theory could
be added later (though, non-ASCII would be just for inside of comments,
say non-breaking space etc. in the source is otherwise an error).
2024-10-15 Jakub Jelinek <jakub@redhat.com>
libcpp/
* include/cpplib.h (struct cpp_options): Add
cpp_warn_trailing_whitespace member.
(enum cpp_warning_reason): Add CPP_W_TRAILING_WHITESPACE.
* internal.h (struct _cpp_line_note): Document 'W' line note.
* lex.cc (_cpp_clean_line): Add 'W' line note for trailing whitespace
except for trailing whitespace after backslash. Formatting fix.
(_cpp_process_line_notes): Emit -Wtrailing-whitespace diagnostics.
Formatting fixes.
(lex_raw_string): Clear type on 'W' notes.
gcc/
* doc/invoke.texi (Wtrailing-whitespace): Document.
gcc/c-family/
* c.opt (Wtrailing-whitespace=): New option.
(Wtrailing-whitespace): New alias.
* c.opt.urls: Regenerate.
gcc/testsuite/
* c-c++-common/cpp/Wtrailing-whitespace-1.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-2.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-3.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-4.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-5.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-6.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-7.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-8.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-9.c: New test.
* c-c++-common/cpp/Wtrailing-whitespace-10.c: New test.
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When working on #embed support, or -Wheader-guard or other recent libcpp
changes, I've been annoyed by the libcpp diagnostics being visually
different from normal gcc diagnostics, especially in the area of quoting
stuff in the diagnostic messages.
Normall GCC diagnostics is gcc_diag/gcc_tdiag, one can use
%</%>, %qs etc. in there, while libcpp diagnostics was marked as printf
and in libcpp we've been very creative with quoting stuff, either
no quotes at all, or "something" quoting, or 'something' quoting, or
`something' quoting (but in none of the cases it used colors consistently
with the rest of the compiler).
Now, libcpp diagnostics is always emitted using a callback,
pfile->cb.diagnostic. On the gcc/ side, this callback is initialized with
genmatch.cc: cb->diagnostic = diagnostic_cb;
c-family/c-opts.cc: cb->diagnostic = c_cpp_diagnostic;
fortran/cpp.cc: cb->diagnostic = cb_cpp_diagnostic;
where the latter two just use diagnostic_report_diagnostic, so actually
support all the gcc_diag stuff, only the genmatch.cc case didn't.
So, the following patch changes genmatch.cc to use pp_format* instead
of vfprintf so that it supports the gcc_diag formatting (pretty-print.o
unfortunately has various dependencies, so had to link genmatch with
libcommon.a libbacktrace.a and tweak Makefile.in so that there are no
circular dependencies) and marks the libcpp diagnostic routines as
gcc_diag rather than printf. That change resulted in hundreds of
-Wformat-diag new warnings (most of them useful and resulting IMHO in
better diagnostics), so the rest of the patch is changing the format
strings to make -Wformat-diag happy and adjusting the testsuite for
the differences in how is the diagnostic reformatted.
Dunno if some out of GCC tree projects use libcpp, that case would
make it harder because one couldn't use vfprintf in the diagnostic
callback anymore, but there is always David's libdiagnostic which could
be used for that purpose IMHO.
2024-10-12 Jakub Jelinek <jakub@redhat.com>
libcpp/
* include/cpplib.h (ATTRIBUTE_CPP_PPDIAG): Define.
(struct cpp_callbacks): Use ATTRIBUTE_CPP_PPDIAG instead of
ATTRIBUTE_FPTR_PRINTF on diagnostic callback.
(cpp_error, cpp_warning, cpp_pedwarning, cpp_warning_syshdr): Use
ATTRIBUTE_CPP_PPDIAG (3, 4) instead of ATTRIBUTE_PRINTF_3.
(cpp_warning_at, cpp_pedwarning_at): Use ATTRIBUTE_CPP_PPDIAG (4, 5)
instead of ATTRIBUTE_PRINTF_4.
(cpp_error_with_line, cpp_warning_with_line, cpp_pedwarning_with_line,
cpp_warning_with_line_syshdr): Use ATTRIBUTE_CPP_PPDIAG (5, 6)
instead of ATTRIBUTE_PRINTF_5.
(cpp_error_at): Use ATTRIBUTE_CPP_PPDIAG (4, 5) instead of
ATTRIBUTE_PRINTF_4.
* Makefile.in (po/$(PACKAGE).pot): Use --language=GCC-source rather
than --language=c.
* errors.cc (cpp_diagnostic_at, cpp_diagnostic,
cpp_diagnostic_with_line): Use ATTRIBUTE_CPP_PPDIAG instead of
-ATTRIBUTE_FPTR_PRINTF.
* charset.cc (cpp_host_to_exec_charset, _cpp_valid_ucn, convert_hex,
convert_oct, convert_escape): Fix up -Wformat-diag warnings.
(cpp_interpret_string_ranges, count_source_chars): Use
ATTRIBUTE_CPP_PPDIAG instead of ATTRIBUTE_FPTR_PRINTF.
(narrow_str_to_charconst): Fix up -Wformat-diag warnings.
* directives.cc (check_eol_1, directive_diagnostics, lex_macro_node,
do_undef, glue_header_name, parse_include, do_include_common,
do_include_next, _cpp_parse_embed_params, do_embed, read_flag,
do_line, do_linemarker, register_pragma_1, do_pragma_once,
do_pragma_push_macro, do_pragma_pop_macro, do_pragma_poison,
do_pragma_system_header, do_pragma_warning_or_error, _cpp_do__Pragma,
do_else, do_elif, do_endif, parse_answer, do_assert,
cpp_define_unused): Likewise.
* expr.cc (cpp_classify_number, parse_defined, eval_token,
_cpp_parse_expr, reduce, check_promotion): Likewise.
* files.cc (_cpp_find_file, finish_base64_embed,
_cpp_pop_file_buffer): Likewise.
* init.cc (sanity_checks): Likewise.
* lex.cc (_cpp_process_line_notes, maybe_warn_bidi_on_char,
_cpp_warn_invalid_utf8, _cpp_skip_block_comment,
warn_about_normalization, forms_identifier_p, maybe_va_opt_error,
identifier_diagnostics_on_lex, cpp_maybe_module_directive): Likewise.
* macro.cc (class vaopt_state, builtin_has_include_1,
builtin_has_include, builtin_has_embed, _cpp_warn_if_unused_macro,
_cpp_builtin_macro_text, builtin_macro, stringify_arg,
_cpp_arguments_ok, collect_args, enter_macro_context,
_cpp_save_parameter, parse_params, create_iso_definition,
_cpp_create_definition, check_trad_stringification): Likewise.
* pch.cc (cpp_valid_state): Likewise.
* traditional.cc (_cpp_scan_out_logical_line, recursive_macro):
Likewise.
gcc/
* Makefile.in (generated_files): Remove {gimple,generic}-match*.
(generated_match_files): New variable. Add a dependency of
$(filter-out $(OBJS-libcommon),$(ALL_HOST_OBJS)) files on those.
(build/genmatch$(build_exeext)): Depend on and link against
libcommon.a and $(LIBBACKTRACE).
* genmatch.cc: Include pretty-print.h and input.h.
(ggc_internal_cleared_alloc, ggc_free): Remove.
(fatal): New function.
(line_table): Remove.
(linemap_client_expand_location_to_spelling_point): Remove.
(diagnostic_cb): Use gcc_diag rather than printf format. Use
pp_format_verbatim on a temporary pretty_printer instead of
vfprintf.
(fatal_at, warning_at): Use gcc_diag rather than printf format.
(output_line_directive): Rename location_hash to loc_hash.
(parser::eat_ident, parser::parse_operation, parser::parse_expr,
parser::parse_pattern, parser::finish_match_operand): Fix up
-Wformat-diag warnings.
gcc/c-family/
* c-lex.cc (c_common_has_attribute,
c_common_lex_availability_macro): Fix up -Wformat-diag warnings.
gcc/testsuite/
* c-c++-common/cpp/counter-2.c: Adjust expected diagnostics for
libcpp diagnostic formatting changes.
* c-c++-common/cpp/embed-3.c: Likewise.
* c-c++-common/cpp/embed-4.c: Likewise.
* c-c++-common/cpp/embed-16.c: Likewise.
* c-c++-common/cpp/embed-18.c: Likewise.
* c-c++-common/cpp/eof-2.c: Likewise.
* c-c++-common/cpp/eof-3.c: Likewise.
* c-c++-common/cpp/fmax-include-depth.c: Likewise.
* c-c++-common/cpp/has-builtin.c: Likewise.
* c-c++-common/cpp/line-2.c: Likewise.
* c-c++-common/cpp/line-3.c: Likewise.
* c-c++-common/cpp/macro-arg-count-1.c: Likewise.
* c-c++-common/cpp/macro-arg-count-2.c: Likewise.
* c-c++-common/cpp/macro-ranges.c: Likewise.
* c-c++-common/cpp/named-universal-char-escape-4.c: Likewise.
* c-c++-common/cpp/named-universal-char-escape-5.c: Likewise.
* c-c++-common/cpp/pr88974.c: Likewise.
* c-c++-common/cpp/va-opt-error.c: Likewise.
* c-c++-common/cpp/va-opt-pedantic.c: Likewise.
* c-c++-common/cpp/Wheader-guard-2.c: Likewise.
* c-c++-common/cpp/Wheader-guard-3.c: Likewise.
* c-c++-common/cpp/Winvalid-utf8-1.c: Likewise.
* c-c++-common/cpp/Winvalid-utf8-2.c: Likewise.
* c-c++-common/cpp/Winvalid-utf8-3.c: Likewise.
* c-c++-common/diagnostic-format-sarif-file-bad-utf8-pr109098-1.c:
Likewise.
* c-c++-common/diagnostic-format-sarif-file-bad-utf8-pr109098-3.c:
Likewise.
* c-c++-common/pr68833-3.c: Likewise.
* c-c++-common/raw-string-directive-1.c: Likewise.
* gcc.dg/analyzer/named-constants-Wunused-macros.c: Likewise.
* gcc.dg/binary-constants-4.c: Likewise.
* gcc.dg/builtin-redefine.c: Likewise.
* gcc.dg/cpp/19951025-1.c: Likewise.
* gcc.dg/cpp/c11-warning-1.c: Likewise.
* gcc.dg/cpp/c11-warning-2.c: Likewise.
* gcc.dg/cpp/c11-warning-3.c: Likewise.
* gcc.dg/cpp/c23-elifdef-2.c: Likewise.
* gcc.dg/cpp/c23-warning-2.c: Likewise.
* gcc.dg/cpp/embed-2.c: Likewise.
* gcc.dg/cpp/embed-3.c: Likewise.
* gcc.dg/cpp/embed-4.c: Likewise.
* gcc.dg/cpp/expr.c: Likewise.
* gcc.dg/cpp/gnu11-elifdef-2.c: Likewise.
* gcc.dg/cpp/gnu11-elifdef-3.c: Likewise.
* gcc.dg/cpp/gnu11-elifdef-4.c: Likewise.
* gcc.dg/cpp/gnu11-warning-1.c: Likewise.
* gcc.dg/cpp/gnu11-warning-2.c: Likewise.
* gcc.dg/cpp/gnu11-warning-3.c: Likewise.
* gcc.dg/cpp/gnu23-warning-2.c: Likewise.
* gcc.dg/cpp/include6.c: Likewise.
* gcc.dg/cpp/pr35322.c: Likewise.
* gcc.dg/cpp/tr-warn6.c: Likewise.
* gcc.dg/cpp/undef2.c: Likewise.
* gcc.dg/cpp/warn-comments.c: Likewise.
* gcc.dg/cpp/warn-comments-2.c: Likewise.
* gcc.dg/cpp/warn-comments-3.c: Likewise.
* gcc.dg/cpp/warn-cxx-compat.c: Likewise.
* gcc.dg/cpp/warn-cxx-compat-2.c: Likewise.
* gcc.dg/cpp/warn-deprecated.c: Likewise.
* gcc.dg/cpp/warn-deprecated-2.c: Likewise.
* gcc.dg/cpp/warn-long-long.c: Likewise.
* gcc.dg/cpp/warn-long-long-2.c: Likewise.
* gcc.dg/cpp/warn-normalized-1.c: Likewise.
* gcc.dg/cpp/warn-normalized-2.c: Likewise.
* gcc.dg/cpp/warn-normalized-3.c: Likewise.
* gcc.dg/cpp/warn-normalized-4-bytes.c: Likewise.
* gcc.dg/cpp/warn-normalized-4-unicode.c: Likewise.
* gcc.dg/cpp/warn-redefined.c: Likewise.
* gcc.dg/cpp/warn-redefined-2.c: Likewise.
* gcc.dg/cpp/warn-traditional.c: Likewise.
* gcc.dg/cpp/warn-traditional-2.c: Likewise.
* gcc.dg/cpp/warn-trigraphs-1.c: Likewise.
* gcc.dg/cpp/warn-trigraphs-2.c: Likewise.
* gcc.dg/cpp/warn-trigraphs-3.c: Likewise.
* gcc.dg/cpp/warn-trigraphs-4.c: Likewise.
* gcc.dg/cpp/warn-undef.c: Likewise.
* gcc.dg/cpp/warn-undef-2.c: Likewise.
* gcc.dg/cpp/warn-unused-macros.c: Likewise.
* gcc.dg/cpp/warn-unused-macros-2.c: Likewise.
* gcc.dg/pch/counter-2.c: Likewise.
* g++.dg/cpp0x/udlit-error1.C: Likewise.
* g++.dg/cpp23/named-universal-char-escape1.C: Likewise.
* g++.dg/cpp23/named-universal-char-escape2.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-1.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-2.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-3.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-4.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-5.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-6.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-7.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-8.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-9.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-10.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-11.C: Likewise.
* g++.dg/cpp23/Winvalid-utf8-12.C: Likewise.
* g++.dg/cpp/elifdef-3.C: Likewise.
* g++.dg/cpp/elifdef-5.C: Likewise.
* g++.dg/cpp/elifdef-6.C: Likewise.
* g++.dg/cpp/elifdef-7.C: Likewise.
* g++.dg/cpp/embed-1.C: Likewise.
* g++.dg/cpp/embed-2.C: Likewise.
* g++.dg/cpp/pedantic-errors.C: Likewise.
* g++.dg/cpp/warning-1.C: Likewise.
* g++.dg/cpp/warning-2.C: Likewise.
* g++.dg/ext/bitint1.C: Likewise.
* g++.dg/ext/bitint2.C: Likewise.
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In r15-4119-gc877a27f04f648 I told preprocess_file to use the
directives-only scan with modules, but it seems that I also need to set the
cpp_option so that communication between _cpp_handle_directive and
scan_translation_unit_directives_only works properly in
c-c++-common/cpp/embed-6.c.
gcc/c-family/ChangeLog:
* c-ppoutput.cc (preprocess_file): Set directives_only flag.
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This patch adds a warning switch for "#pragma once in main file". The
warning option name is Wpragma-once-outside-header, which is the same
as Clang provides.
PR preprocessor/89808
gcc/c-family/ChangeLog:
* c.opt (Wpragma_once_outside_header): Define new option.
* c.opt.urls: Regenerate.
gcc/ChangeLog:
* doc/invoke.texi (Warning Options): Document
-Wno-pragma-once-outside-header.
libcpp/ChangeLog:
* include/cpplib.h (cpp_warning_reason): Define
CPP_W_PRAGMA_ONCE_OUTSIDE_HEADER.
* directives.cc (do_pragma_once): Use
CPP_W_PRAGMA_ONCE_OUTSIDE_HEADER.
gcc/testsuite/ChangeLog:
* g++.dg/warn/Wno-pragma-once-outside-header.C: New test.
* g++.dg/warn/Wpragma-once-outside-header.C: New test.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Reviewed-by: Marek Polacek <polacek@redhat.com>
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init_modules has rejected -M -fmodules-ts on the premise that module
dependency analysis requires macro expansion, but this is no longer
accurate; P1857 prohibited module directives produced by macro expansion.
They can still be dependent on #if directives, but those are still handled
with -fdirectives-only.
What wasn't working was -M or -dM, because cpp_scan_nooutput never called
module_token_pre to implement the import. The simplest fix is to use the
-fdirectives-only scan when modules are enabled and teach directives_only_cb
about flag_no_output.
gcc/cp/ChangeLog:
* module.cc (init_modules): Don't warn about -M.
gcc/c-family/ChangeLog:
* c-ppoutput.cc (preprocess_file): For modules,
use directives-only scan even with flag_no_output.
(directives_only_cb): Respect flag_no_output.
gcc/ChangeLog:
* doc/invoke.texi (C++ Module Preprocessing): Allow -M,
refer to -fdeps.
gcc/testsuite/ChangeLog:
* g++.dg/modules/macro-8_a.H: New test.
* g++.dg/modules/macro-8_b.C: New test.
* g++.dg/modules/macro-8_c.C: New test.
* g++.dg/modules/macro-8_d.C: New test.
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By default -Wdeprecated warns about deprecations in the active standard.
When specified explicitly, let's also warn about deprecations in later
standards.
gcc/c-family/ChangeLog:
* c-opts.cc (c_common_post_options): Explicit -Wdeprecated enables
deprecations from later standards.
gcc/ChangeLog:
* doc/invoke.texi: Explicit -Wdeprecated enables more warnings.
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C++23 CWG issue 2521 (https://wg21.link/cwg2521) deprecates user-defined
literal operators declared with the optional space between "" and the
suffix.
Many testcases used that syntax; I removed the space from most of them, and
added C++23 warning tests to a few.
CWG 2521
gcc/ChangeLog:
* doc/invoke.texi: Document -Wdeprecated-literal-operator.
gcc/c-family/ChangeLog:
* c.opt: Add -Wdeprecated-literal-operator.
* c-opts.cc (c_common_post_options): Default on in C++23.
* c.opt.urls: Regenerate.
gcc/cp/ChangeLog:
* parser.cc (location_between): New.
(cp_parser_operator): Handle -Wdeprecated-literal-operator.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/udlit-string-literal.h
* g++.dg/cpp0x/Wliteral-suffix2.C
* g++.dg/cpp0x/constexpr-55708.C
* g++.dg/cpp0x/gnu_fext-numeric-literals.C
* g++.dg/cpp0x/gnu_fno-ext-numeric-literals.C
* g++.dg/cpp0x/pr51420.C
* g++.dg/cpp0x/pr60209-neg.C
* g++.dg/cpp0x/pr60209.C
* g++.dg/cpp0x/pr61038.C
* g++.dg/cpp0x/std_fext-numeric-literals.C
* g++.dg/cpp0x/std_fno-ext-numeric-literals.C
* g++.dg/cpp0x/udlit-addr.C
* g++.dg/cpp0x/udlit-args-neg.C
* g++.dg/cpp0x/udlit-args.C
* g++.dg/cpp0x/udlit-args2.C
* g++.dg/cpp0x/udlit-clink-neg.C
* g++.dg/cpp0x/udlit-concat-neg.C
* g++.dg/cpp0x/udlit-concat.C
* g++.dg/cpp0x/udlit-constexpr.C
* g++.dg/cpp0x/udlit-cpp98-neg.C
* g++.dg/cpp0x/udlit-declare-neg.C
* g++.dg/cpp0x/udlit-embed-quote.C
* g++.dg/cpp0x/udlit-extended-id-1.C
* g++.dg/cpp0x/udlit-extended-id-3.C
* g++.dg/cpp0x/udlit-extern-c.C
* g++.dg/cpp0x/udlit-friend.C
* g++.dg/cpp0x/udlit-general.C
* g++.dg/cpp0x/udlit-implicit-conv-neg-char8_t.C
* g++.dg/cpp0x/udlit-implicit-conv-neg.C
* g++.dg/cpp0x/udlit-inline.C
* g++.dg/cpp0x/udlit-mangle.C
* g++.dg/cpp0x/udlit-member-neg.C
* g++.dg/cpp0x/udlit-namespace.C
* g++.dg/cpp0x/udlit-nofunc-neg.C
* g++.dg/cpp0x/udlit-nonempty-str-neg.C
* g++.dg/cpp0x/udlit-nosuffix-neg.C
* g++.dg/cpp0x/udlit-nounder-neg.C
* g++.dg/cpp0x/udlit-operator-neg.C
* g++.dg/cpp0x/udlit-overflow-neg.C
* g++.dg/cpp0x/udlit-overflow.C
* g++.dg/cpp0x/udlit-preproc-neg.C
* g++.dg/cpp0x/udlit-raw-length.C
* g++.dg/cpp0x/udlit-raw-op-string-neg.C
* g++.dg/cpp0x/udlit-raw-op.C
* g++.dg/cpp0x/udlit-raw-str.C
* g++.dg/cpp0x/udlit-resolve-char8_t.C
* g++.dg/cpp0x/udlit-resolve.C
* g++.dg/cpp0x/udlit-shadow-neg.C
* g++.dg/cpp0x/udlit-string-length.C
* g++.dg/cpp0x/udlit-suffix-neg.C
* g++.dg/cpp0x/udlit-template.C
* g++.dg/cpp0x/udlit-tmpl-arg-neg.C
* g++.dg/cpp0x/udlit-tmpl-arg-neg2.C
* g++.dg/cpp0x/udlit-tmpl-arg.C
* g++.dg/cpp0x/udlit-tmpl-parms-neg.C
* g++.dg/cpp0x/udlit-tmpl-parms.C
* g++.dg/cpp1y/pr57640.C
* g++.dg/cpp1y/pr88872.C
* g++.dg/cpp26/unevalstr1.C
* g++.dg/cpp2a/concepts-pr60391.C
* g++.dg/cpp2a/consteval-prop21.C
* g++.dg/cpp2a/nontype-class6.C
* g++.dg/cpp2a/udlit-class-nttp-ctad-neg.C
* g++.dg/cpp2a/udlit-class-nttp-ctad-neg2.C
* g++.dg/cpp2a/udlit-class-nttp-ctad.C
* g++.dg/cpp2a/udlit-class-nttp-neg.C
* g++.dg/cpp2a/udlit-class-nttp-neg2.C
* g++.dg/cpp2a/udlit-class-nttp.C
* g++.dg/ext/is_convertible2.C
* g++.dg/lookup/pr87269.C
* g++.dg/cpp0x/udlit_system_header: Adjust for C++23 deprecated
operator "" _suffix.
* g++.dg/DRs/dr2521.C: New test.
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The following patch implements the clang -Wheader-guard warning, which warns
if a valid multiple inclusion header guard's #ifndef/#if !defined directive
is immediately (no other non-line directives nor other (non-comment)
tokens in between) followed by #define directive for some different macro,
which in get_suggestion rules is close enough to the actual header guard
macro (i.e. likely misspelling), the #define is object-like with empty
definition (I've followed what clang implements) and the macro isn't defined
later on (at least not on the final #endif at the end of a header).
In this case it emits a warning, so that
#ifndef STDIO_H
#define STDOI_H
...
#endif
or similar misspellings can be caught.
clang enables this warning by default, but I've put it into -Wall instead
as it still seems to be a style warning, nothing more severe; if a header
doesn't survive multiple inclusion because of the misspelling, users will
get different diagnostics.
2024-10-02 Jakub Jelinek <jakub@redhat.com>
PR preprocessor/96842
libcpp/
* include/cpplib.h (struct cpp_options): Add warn_header_guard member.
(enum cpp_warning_reason): Add CPP_W_HEADER_GUARD enumerator.
* internal.h (struct cpp_reader): Add mi_def_cmacro, mi_loc and
mi_def_loc members.
(_cpp_defined_macro_p): Constify type pointed by argument type.
Formatting fix.
* init.cc (cpp_create_reader): Clear
CPP_OPTION (pfile, warn_header_guard).
* directives.cc (struct if_stack): Add def_loc and mi_def_cmacro
members.
(DIRECTIVE_TABLE): Add IF_COND flag to define.
(do_define): Set ifs->mi_def_cmacro on a define immediately following
#ifndef directive for the guard. Clear pfile->mi_valid. Formatting
fix.
(do_endif): Copy over pfile->mi_def_cmacro and pfile->mi_def_loc
if ifs->mi_def_cmacro is set and pfile->mi_cmacro isn't a defined
macro.
(push_conditional): Clear mi_def_cmacro and mi_def_loc members.
* files.cc (_cpp_pop_file_buffer): Emit -Wheader-guard diagnostics.
gcc/
* doc/invoke.texi (Wheader-guard): Document.
gcc/c-family/
* c.opt (Wheader-guard): New option.
* c.opt.urls: Regenerated.
* c-ppoutput.cc (init_pp_output): Initialize also cb->get_suggestion.
gcc/testsuite/
* c-c++-common/cpp/Wheader-guard-1.c: New test.
* c-c++-common/cpp/Wheader-guard-1-1.h: New test.
* c-c++-common/cpp/Wheader-guard-1-2.h: New test.
* c-c++-common/cpp/Wheader-guard-1-3.h: New test.
* c-c++-common/cpp/Wheader-guard-1-4.h: New test.
* c-c++-common/cpp/Wheader-guard-1-5.h: New test.
* c-c++-common/cpp/Wheader-guard-1-6.h: New test.
* c-c++-common/cpp/Wheader-guard-1-7.h: New test.
* c-c++-common/cpp/Wheader-guard-1-8.h: New test.
* c-c++-common/cpp/Wheader-guard-1-9.h: New test.
* c-c++-common/cpp/Wheader-guard-1-10.h: New test.
* c-c++-common/cpp/Wheader-guard-1-11.h: New test.
* c-c++-common/cpp/Wheader-guard-1-12.h: New test.
* c-c++-common/cpp/Wheader-guard-2.c: New test.
* c-c++-common/cpp/Wheader-guard-2.h: New test.
* c-c++-common/cpp/Wheader-guard-3.c: New test.
* c-c++-common/cpp/Wheader-guard-3.h: New test.
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