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87 Commits

Author SHA1 Message Date
Jakub Jelinek
18f5df94df re PR preprocessor/88974 (ICE: Segmentation fault (in linemap_resolve_location)) 
PR preprocessor/88974
	* directives.c (SEEN_EOL): Move macro to ...
	* internal.h (SEEN_EOL): ... here.
	* expr.c (parse_has_include): Don't cpp_get_token if SEEN_EOL ().

	* c-c++-common/cpp/pr88974.c: New test.

From-SVN: r268285
 2019-01-26 11:08:00 +01:00
Jakub Jelinek
a554497024 Update copyright years. 
From-SVN: r267494
 2019-01-01 13:31:55 +01:00
David Malcolm
620e594be5 Eliminate source_location in favor of location_t 
Historically GCC used location_t, while libcpp used source_location.

This inconsistency has been annoying me for a while, so this patch
removes source_location in favor of location_t throughout
(as the latter is shorter).

gcc/ChangeLog:
	* builtins.c: Replace "source_location" with "location_t".
	* diagnostic-show-locus.c: Likewise.
	* diagnostic.c: Likewise.
	* dumpfile.c: Likewise.
	* gcc-rich-location.h: Likewise.
	* genmatch.c: Likewise.
	* gimple.h: Likewise.
	* gimplify.c: Likewise.
	* input.c: Likewise.
	* input.h: Likewise.  Eliminate the typedef.
	* omp-expand.c: Likewise.
	* selftest.h: Likewise.
	* substring-locations.h (get_source_location_for_substring):
	Rename to..
	(get_location_within_string): ...this.
	* tree-cfg.c: Replace "source_location" with "location_t".
	* tree-cfgcleanup.c: Likewise.
	* tree-diagnostic.c: Likewise.
	* tree-into-ssa.c: Likewise.
	* tree-outof-ssa.c: Likewise.
	* tree-parloops.c: Likewise.
	* tree-phinodes.c: Likewise.
	* tree-phinodes.h: Likewise.
	* tree-ssa-loop-ivopts.c: Likewise.
	* tree-ssa-loop-manip.c: Likewise.
	* tree-ssa-phiopt.c: Likewise.
	* tree-ssa-phiprop.c: Likewise.
	* tree-ssa-threadupdate.c: Likewise.
	* tree-ssa.c: Likewise.
	* tree-ssa.h: Likewise.
	* tree-vect-loop-manip.c: Likewise.

gcc/c-family/ChangeLog:
	* c-common.c (c_get_substring_location): Update for renaming of
	get_source_location_for_substring to get_location_within_string.
	* c-lex.c: Replace "source_location" with "location_t".
	* c-opts.c: Likewise.
	* c-ppoutput.c: Likewise.

gcc/c/ChangeLog:
	* c-decl.c: Replace "source_location" with "location_t".
	* c-tree.h: Likewise.
	* c-typeck.c: Likewise.
	* gimple-parser.c: Likewise.

gcc/cp/ChangeLog:
	* call.c: Replace "source_location" with "location_t".
	* cp-tree.h: Likewise.
	* cvt.c: Likewise.
	* name-lookup.c: Likewise.
	* parser.c: Likewise.
	* typeck.c: Likewise.

gcc/fortran/ChangeLog:
	* cpp.c: Replace "source_location" with "location_t".
	* gfortran.h: Likewise.

gcc/go/ChangeLog:
	* go-gcc-diagnostics.cc: Replace "source_location" with "location_t".
	* go-gcc.cc: Likewise.
	* go-linemap.cc: Likewise.
	* go-location.h: Likewise.
	* gofrontend/README: Likewise.

gcc/jit/ChangeLog:
	* jit-playback.c: Replace "source_location" with "location_t".

gcc/testsuite/ChangeLog:
	* g++.dg/plugin/comment_plugin.c: Replace "source_location" with
	"location_t".
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c: Likewise.

libcc1/ChangeLog:
	* libcc1plugin.cc: Replace "source_location" with "location_t".
	(plugin_context::get_source_location): Rename to...
	(plugin_context::get_location_t): ...this.
	* libcp1plugin.cc: Likewise.

libcpp/ChangeLog:
	* charset.c: Replace "source_location" with "location_t".
	* directives-only.c: Likewise.
	* directives.c: Likewise.
	* errors.c: Likewise.
	* expr.c: Likewise.
	* files.c: Likewise.
	* include/cpplib.h: Likewise.  Rename MAX_SOURCE_LOCATION to
	MAX_LOCATION_T.
	* include/line-map.h: Likewise.
	* init.c: Likewise.
	* internal.h: Likewise.
	* lex.c: Likewise.
	* line-map.c: Likewise.
	* location-example.txt: Likewise.
	* macro.c: Likewise.
	* pch.c: Likewise.
	* traditional.c: Likewise.

From-SVN: r266085
 2018-11-13 20:05:03 +00:00
Nathan Sidwell
f3f6029db2 [6/6] Preprocessor forced macro location 
https://gcc.gnu.org/ml/gcc-patches/2018-10/msg02044.html
	libcpp/
	* internal.h (struct cpp_reader): Rename forced_token_location_p
	to forced_token_location and drop its pointerness.
	* include/cpplib.h (cpp_force_token_locations): Take location, not
	pointer to one.
	* init.c (cpp_create_reader): Adjust.
	* lex.c (cpp_read_main_file): 

	gcc/c-family/
	* c-opts.c (c_finish_options): Adjust cpp_force_token_locations call.

	gcc/fortran/
	* cpp.c (gfc_cpp_init): Adjust cpp_force_token_locations call.

From-SVN: r265692
 2018-10-31 15:26:28 +00:00
Nathan Sidwell
abcd1775e0 [PATCH] Kill cpp-id-data.h 
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01149.html
	libcpp/
	* Makefile.in (TAGS_SOURCES): Remove cpp-id-data.h.
	* include/cpp-id-data.h: Delete.
	* internal.h: Include cpplib.h not cpp-id-data.h.
	gcc/
	* Makefile.in (CPP_ID_DATA_H): Delete.
	(CPP_INTERNAL_H): Don't add it.
	(GTFILES): Replace CPP_ID_DATA_H with CPPLIB_H.
	* gengtype.c (open_base_files): Replace cpp-id-data.h with cpplib.h

From-SVN: r263663
 2018-08-20 14:20:04 +00:00
Nathan Sidwell
10f04917ab [PATCH] Macro body is trailing array 
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01037.html
	* include/cpplib.h (enum cpp_macro_kind): New.
	(struct cpp_macro): Make body trailing array.  Add kind field,
	delete traditional flag.
	* internal.h (_cpp_new_macro): Declare.
	(_cpp_reserve_room): New inline.
	(_cpp_commit_buf): Declare.
	(_cpp_create_trad_definition): Return new macro.
	* lex.c (_cpp_commit_buff): New.
	* macro.c (macro_real_token_count): Count backwards.
	(replace_args): Pointer equality not orderedness.
	(_cpp_save_parameter): Use _cpp_reserve_room.
	(alloc_expansion_token): Delete.
	(lex_expansion_token): Return macro pointer.  Use _cpp_reserve_room.
	(create_iso_definition): Allocate macro itself.  Adjust for
	different allocation ordering.
	(_cpp_new_macro): New.
	(_cpp_create_definition): Adjust for API changes.
	* traditional.c (push_replacement_text): Don't set traditional
	flag.
	(save_replacement_text): Likewise.
	(_cpp_create_trad_definition): Allocate macro itself, Adjust for
	different allocation ordering.

From-SVN: r263622
 2018-08-17 16:07:19 +00:00
Nathan Sidwell
c5d725c0a8 [PATCH] Move cpp_macro to cpplib.h 
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01016.html
	libcpp/
	* cpp-id-data.h (uchar, UC): Move to internal.h
	(struct cpp_macro): Move to cpplib.h.
	* internal.h (uchar, UC): From cpp-id-data.h.
	* include/cpplib.h (struct cpp_macro): From cpp-id-data.h.
	gcc/c-family/
	* c-ada-spec.c: Don't #include "cpp-id-data.h"
	* c-cppbuiltin.c: Likewise.
	gcc/
	* cppbuiltin.c: Include "cpplib.h", not "cpp-id-data.h".

From-SVN: r263618
 2018-08-17 12:04:13 +00:00
Nathan Sidwell
729a01f72c [PATCH] Macro definition parameter parsing 
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg00977.html
	libcpp/
	* internal.h (_cpp_save_parameter): Take parmno, not macro.
	(_cpp_unsave_parameters): Declare.
	* macro.c (_cpp_save_parameter): Take parm number, not macro.
	Return true on success.
	(_cpp_unsave_parameters): New.
	(parse_params): Take parm_no and variadic pointers, not macro.
	Reimplement parsing logic.
	(create_iso_definition): Adjust parse_params changes.  Call
	_cpp_unsave_parameters here.
	(_cpp_create_definition): Don't unsave params here.
	* traditional.c (scan_parameters): Take n_param pointer, adjust.
	(_cpp_create_trad_definition): Ajust scan_parameters change.  Call
	_cpp_unsave_parameters.
	gcc/testsuite/
	* gcc.dg/cpp/macsyntx.c: Adjust expected errors.
	* gcc.dg/cpp/macsyntx2.c: likewise.

From-SVN: r263600
 2018-08-16 19:18:42 +00:00
Nathan Sidwell
3f6677f418 [PATCH] CPP Macro predicates 
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg00897.html
	libcpp/
	* include/cpplib.h (cpp_user_macro_p, cpp_builtin_macro_p)
	(cpp_macro_p): New inlines.
	* directives.c (do_pragma_poison): Use cpp_macro_p.
	(do_ifdef, do_ifndef): Likewise.  Use _cpp_maybe_notify_macro_use.
	(cpp_pop_definition): Use cpp_macro_p.  Move _cpp_free_definition
	earlier.  Don't zap node directly.
	* expr.c (parse_defined): Use _cpp_maybe_notify_macro_use &
	cpp_macro_p.
	* files.c (should_stack_file): Use cpp_macro_p.
	* identifiers.c (cpp_defined): Likewise.
	* internal.h (_cpp_mark_macro): Use cpp_user_macro_p.
	(_cpp_notify_macro_use): Declare.
	(_cpp_maybe_notify_macro_use): New inline.
	* lex.c (is_macro): Use cpp_macro_p.
	* macro.c (_cpp_warn_if_unused_macro): Use cpp_user_macro_p.
	(enter_macro_context): Likewise.
	(_cpp_create_definition): Use cpp_builtin_macro_p,
	cpp_user_macro_p.  Move _cpp_free_definition earlier.
	(_cpp_notify_macro_use): New, broken out of multiple call sites.
	* traditional.c (fun_like_macro_p): Use cpp_builtin_macro_p.
	(maybe_start_funlike, _cpp_scan_out_logical_line)
	(push_replacement_text): Likewise.
	gcc/c-family/
	* c-ada-spec.c (count_ada_macro): Use cpp_user_macro_p.
	(store_ada_macro): Likewise.
	* c-ppoutput.c (cb_used_define, dump_macro): Likewise.
	* c-spellcheck.cc (should-suggest_as_macro_p): Likewise,
	gcc/
	* config/rs6000/rs6000-c.c (rs6000_macro_to_expend): Use cpp_macro_p.
	* config/powerpcspc/powerpcspe-c.c (rs6000_macro_to_expend): Likewise.
	gcc/cp/
	* name-lookup.c (lookup_name_fuzzy): Likewise.
	gcc/fortran/
	* cpp.c (dump_macro): Use cpp_user_macro_p.

From-SVN: r263587
 2018-08-16 13:51:38 +00:00
Jakub Jelinek
85ec4feb11 Update copyright years. 
From-SVN: r256169
 2018-01-03 11:03:58 +01:00
Bernd Edlinger
c65e18d333 invoke.texi: Document -Wcast-function-type. 
gcc:
2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.texi: Document -Wcast-function-type.
        * recog.h (stored_funcptr): Change signature.
        * tree-dump.c (dump_node): Avoid warning.
        * typed-splay-tree.h (typed_splay_tree): Avoid warning.

libcpp:
2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * internal.h (maybe_print_line): Change signature.

c-family:
2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c.opt (Wcast-function-type): New warning option.
        * c-lex.c (get_fileinfo): Avoid warning.
        * c-ppoutput.c (scan_translation_unit_directives_only): Remove cast.

c:
2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-typeck.c (c_safe_arg_type_equiv_p,
        c_safe_function_type_cast_p): New function.
        (build_c_cast): Implement -Wcast-function-type.

cp:
2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * decl2.c (start_static_storage_duration_function): Avoid warning.
        * typeck.c (cxx_safe_arg_type_equiv_p,
        cxx_safe_function_type_cast_p): New function.
        (build_reinterpret_cast_1): Implement -Wcast-function-type.

testsuite:
2017-12-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-c++-common/Wcast-function-type.c: New test.
        * g++.dg/Wcast-function-type.C: New test.

From-SVN: r255661
 2017-12-14 18:59:24 +00:00
Tom Tromey
fb771b9dad Implement __VA_OPT__ 
This implements __VA_OPT__, a new preprocessor feature added in C++2A.
The paper can be found here:

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0306r4.html

gcc/ChangeLog

        * doc/cpp.texi (Variadic Macros): Document __VA_OPT__.

gcc/testsuite/ChangeLog

        * c-c++-common/cpp/va-opt-pedantic.c: New file.
        * c-c++-common/cpp/va-opt.c: New file.
        * c-c++-common/cpp/va-opt-error.c: New file.

libcpp/ChangeLog

        * pch.c (cpp_read_state): Set n__VA_OPT__.
        * macro.c (vaopt_state): New class.
        (_cpp_arguments_ok): Check va_opt flag.
        (replace_args, create_iso_definition): Use vaopt_state.
        * lex.c (lex_identifier_intern): Possibly issue errors for
        __VA_OPT__.
        (lex_identifier): Likewise.
        (maybe_va_opt_error): New function.
        * internal.h (struct lexer_state) <va_args_ok>: Update comment.
        (struct spec_nodes) <n__VA_OPT__>: New field.
        * init.c (struct lang_flags) <va_opt>: New field.
        (lang_defaults): Add entries for C++2A.  Update all entries for
        va_opt.
        (cpp_set_lang): Initialize va_opt.
        * include/cpplib.h (struct cpp_options) <va_opt>: New field.
        * identifiers.c (_cpp_init_hashtable): Initialize n__VA_OPT__.

From-SVN: r254707
 2017-11-13 20:17:42 +00:00
Jakub Jelinek
cbe34bb5ed Update copyright years. 
From-SVN: r243994
 2017-01-01 13:07:43 +01:00
David Malcolm
88fa5555a3 On-demand locations within string-literals 
gcc/c-family/ChangeLog:
	* c-common.c: Include "substring-locations.h".
	(get_cpp_ttype_from_string_type): New function.
	(g_string_concat_db): New global.
	(substring_loc::get_range): New method.
	* c-common.h (g_string_concat_db): New declaration.
	(class substring_loc): New class.
	* c-lex.c (lex_string): When concatenating strings, capture the
	locations of all tokens using a new obstack, and record the
	concatenation locations within g_string_concat_db.
	* c-opts.c (c_common_init_options): Construct g_string_concat_db
	on the ggc-heap.

gcc/ChangeLog:
	* input.c (string_concat::string_concat): New constructor.
	(string_concat_db::string_concat_db): New constructor.
	(string_concat_db::record_string_concatenation): New method.
	(string_concat_db::get_string_concatenation): New method.
	(string_concat_db::get_key_loc): New method.
	(class auto_cpp_string_vec): New class.
	(get_substring_ranges_for_loc): New function.
	(get_source_range_for_substring): New function.
	(get_num_source_ranges_for_substring): New function.
	(class selftest::lexer_test_options): New class.
	(struct selftest::lexer_test): New struct.
	(class selftest::ebcdic_execution_charset): New class.
	(selftest::ebcdic_execution_charset::s_singleton): New variable.
	(selftest::lexer_test::lexer_test): New constructor.
	(selftest::lexer_test::~lexer_test): New destructor.
	(selftest::lexer_test::get_token): New method.
	(selftest::assert_char_at_range): New function.
	(ASSERT_CHAR_AT_RANGE): New macro.
	(selftest::assert_num_substring_ranges): New function.
	(ASSERT_NUM_SUBSTRING_RANGES): New macro.
	(selftest::assert_has_no_substring_ranges): New function.
	(ASSERT_HAS_NO_SUBSTRING_RANGES): New macro.
	(selftest::test_lexer_string_locations_simple): New function.
	(selftest::test_lexer_string_locations_ebcdic): New function.
	(selftest::test_lexer_string_locations_hex): New function.
	(selftest::test_lexer_string_locations_oct): New function.
	(selftest::test_lexer_string_locations_letter_escape_1): New function.
	(selftest::test_lexer_string_locations_letter_escape_2): New function.
	(selftest::test_lexer_string_locations_ucn4): New function.
	(selftest::test_lexer_string_locations_ucn8): New function.
	(selftest::uint32_from_big_endian): New function.
	(selftest::test_lexer_string_locations_wide_string): New function.
	(selftest::uint16_from_big_endian): New function.
	(selftest::test_lexer_string_locations_string16): New function.
	(selftest::test_lexer_string_locations_string32): New function.
	(selftest::test_lexer_string_locations_u8): New function.
	(selftest::test_lexer_string_locations_utf8_source): New function.
	(selftest::test_lexer_string_locations_concatenation_1): New
	function.
	(selftest::test_lexer_string_locations_concatenation_2): New
	function.
	(selftest::test_lexer_string_locations_concatenation_3): New
	function.
	(selftest::test_lexer_string_locations_macro): New function.
	(selftest::test_lexer_string_locations_stringified_macro_argument):
	New function.
	(selftest::test_lexer_string_locations_non_string): New function.
	(selftest::test_lexer_string_locations_long_line): New function.
	(selftest::test_lexer_char_constants): New function.
	(selftest::input_c_tests): Call the new test functions once per
	case within the line_table test matrix.
	* input.h (struct string_concat): New struct.
	(struct location_hash): New struct.
	(class string_concat_db): New class.
	* substring-locations.h: New header.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/diagnostic-test-string-literals-1.c: New file.
	* gcc.dg/plugin/diagnostic-test-string-literals-2.c: New file.
	* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c: New file.
	* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above new files.

libcpp/ChangeLog:
	* charset.c (cpp_substring_ranges::cpp_substring_ranges): New
	constructor.
	(cpp_substring_ranges::~cpp_substring_ranges): New destructor.
	(cpp_substring_ranges::add_range): New method.
	(cpp_substring_ranges::add_n_ranges): New method.
	(_cpp_valid_ucn): Add "char_range" and "loc_reader" params; if
	they are non-NULL, read position information from *loc_reader
	and update char_range->m_finish accordingly.
	(convert_ucn): Add "char_range", "loc_reader", and "ranges"
	params.  If loc_reader is non-NULL, read location information from
	it, and update *ranges accordingly, using char_range.
	Conditionalize the conversion into tbuf on tbuf being non-NULL.
	(convert_hex): Likewise, conditionalizing the call to
	emit_numeric_escape on tbuf.
	(convert_oct): Likewise.
	(convert_escape): Add params "loc_reader" and "ranges".  If
	loc_reader is non-NULL, read location information from it, and
	update *ranges accordingly.  Conditionalize the conversion into
	tbuf on tbuf being non-NULL.
	(cpp_interpret_string): Rename to...
	(cpp_interpret_string_1): ...this, adding params "loc_readers" and
	"out".  Use "to" to conditionalize the initialization and usage of
	"tbuf", such as running the converter.  If "loc_readers" is
	non-NULL, use the instances within it, reading location
	information from them, and passing them to convert_escape; likewise
	write to "out" if loc_readers is non-NULL.  Check for leading
	quote and issue an error if it is not present.  Update boundary
	check from "== limit" to ">= limit" to protect against erroneous
	location values to calls that are not parsing string literals.
	(cpp_interpret_string): Reimplement in terms to
	cpp_interpret_string_1.
	(noop_error_cb): New function.
	(cpp_interpret_string_ranges): New function.
	(cpp_string_location_reader::cpp_string_location_reader): New
	constructor.
	(cpp_string_location_reader::get_next): New method.
	* include/cpplib.h (class cpp_string_location_reader): New class.
	(class cpp_substring_ranges): New class.
	(cpp_interpret_string_ranges): New prototype.
	* internal.h (_cpp_valid_ucn): Add params "char_range" and
	"loc_reader".
	* lex.c (forms_identifier_p): Pass NULL for new params to
	_cpp_valid_ucn.

From-SVN: r239175
 2016-08-05 18:08:33 +00:00
David Malcolm
ac81cf0b2b libcpp: Tweak to missing #include source location 
This patch tweaks the error message location for missing header files.

Previously these read:

test.c:1:17: fatal error: 404.h: No such file or directory
 #include "404.h"
                 ^
compilation terminated.

With this patch, the pertinent string is underlined:

test.c:1:10: fatal error: 404.h: No such file or directory
 #include "404.h"
          ^~~~~~~
compilation terminated.

gcc/testsuite/ChangeLog:
	* c-c++-common/missing-header-1.c: New test case.
	* c-c++-common/missing-header-2.c: New test case.
	* c-c++-common/missing-header-3.c: New test case.
	* c-c++-common/missing-header-4.c: New test case.

libcpp/ChangeLog:
	* directives.c (do_include_common): Pass on "location" to
	_cpp_stack_include.
	* errors.c (cpp_diagnostic): Reimplement in terms of...
	(cpp_diagnostic_at): New function.
	(cpp_error_at): New function.
	(cpp_errno_filename): Add "loc" param and use it by using
	cpp_error_at rather than cpp_error.
	* files.c (find_file_in_dir): Add "loc" param and pass it to
	open_file_failed.
	(_cpp_find_file): Add "loc" param.  Use it to convert calls to
	cpp_error to cpp_error_at, and pass it to find_file_in_dir and
	open_file_failed.
	(read_file_guts): Add "loc" param.  Use it to convert calls to
	cpp_error to cpp_error_at.  Pass it to cpp_errno_filename.
	(read_file): Add "loc" param.  Pass it to open_file_failed and
	read_file_guts.
	(should_stack_file): Add "loc" param.  Pass it to read_file.
	(_cpp_stack_file): Add "loc" param.  Pass it to should_stack_file.
	(_cpp_stack_include): Add "loc" param.  Pass it to
	_cpp_find_file and _cpp_stack_file.
	(open_file_failed): Add "loc" param.  Pass it to
	cpp_errno_filename.
	(_cpp_fake_include): Add 0 as a source_location in call to
	_cpp_find_file.
	(_cpp_compare_file_date): Likewise.
	(cpp_push_include): Likewise for call to _cpp_stack_include.
	(cpp_push_default_include): Likewise.
	(_cpp_save_file_entries): Likewise for call to open_file_failed.
	(_cpp_has_header): Likewise for call to _cpp_find_file.
	* include/cpplib.h (cpp_errno_filename): Add source_location
	param.
	(cpp_error_at): New declaration.
	* init.c (cpp_read_main_file): Add 0 as a source_location in calls
	to _cpp_find_file and _cpp_stack_file.
	* internal.h (_cpp_find_file): Add source_location param.
	(_cpp_stack_file): Likewise.
	(_cpp_stack_include): Likewise.

From-SVN: r237715
 2016-06-22 15:29:21 +00:00
Eduard Sanou
15c98b2e0d c-common.c (get_source_date_epoch): Rename to cb_get_source_date_epoch. 
gcc/c-family/ChangeLog:

2016-05-13  Eduard Sanou  <dhole@openmailbox.org>

	* c-common.c (get_source_date_epoch): Rename to
	cb_get_source_date_epoch.
	* c-common.c (cb_get_source_date_epoch): Use a single generic erorr
	message when the parsing fails.  Use error_at instead of fatal_error.
	* c-common.h (get_source_date_epoch): Rename to
	cb_get_source_date_epoch.
	* c-common.h (cb_get_source_date_epoch): Prototype.
	* c-common.h (MAX_SOURCE_DATE_EPOCH): Define.
	* c-common.h (c_omp_region_type): Remove trailing comma.
	* c-lex.c (init_c_lex): Set cb->get_source_date_epoch callback.
	* c-lex.c (c_lex_with_flags): Remove initialization of
	pfile->source_date_epoch.

gcc/ChangeLog:

2016-05-13  Eduard Sanou  <dhole@openmailbox.org>

	* doc/cppenv.texi: Note that the `%s` in `date` is a non-standard
	extension.
	* gcc.c (driver_handle_option): Call set_source_date_epoch_envvar.
	* gcc.c (set_source_date_epoch_envvar): New function, sets
	the SOURCE_DATE_EPOCH environment variable to the current time.

gcc/testsuite/ChangeLog:

2016-05-13  Eduard Sanou  <dhole@openmailbox.org>

	* gcc.dg/cpp/source_date_epoch-1.c: New file, test the proper
	behaviour of the macros __DATE__ and __TIME__ when SOURCE_DATE_EPOCH
	env var is set.
	* gcc.dg/cpp/source_date_epoch-2.c: New file, test the error output
	when parsing the SOURCE_DATE_EPOCH env var, and make sure it is only
	shown once.
	* lib/gcc-dg.exp (dg-set-compiler-env-var): New function, set env vars
	during compilation.
	* lib/gcc-dg.exp (restore-compiler-env-var): New function, restore env
	vars set by dg-set-compiler-env-var.

libcpp/ChangeLog:

2016-05-13  Eduard Sanou  <dhole@openmailbox.org>

	* include/cpplib.h (cpp_callbacks): Add get_source_date_epoch
	callback.
	* include/cpplib.h (cpp_init_source_date_epoch): Remove prototype.
	* init.c (cpp_init_source_date_epoch): Remove function.
	* init.c (cpp_create_reader): Initialize pfile->source_date_epoch.
	* internal.h (cpp_reader): Extend comment about source_date_epoch.
	* macro.c (_cpp_builtin_macro_text): Use get_source_date_epoch
	callback only once, read pfile->source_date_epoch on future passes.
	Check that get_source_date_epoch callback is not NULL.

From-SVN: r237001
 2016-06-01 16:42:41 +00:00
Eduard Sanou
174f66220d c-common.c (get_source_date_epoch): New function... 
gcc/c-family/ChangeLog:

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
	    Matthias Klose  <doko@debian.org>

	* c-common.c (get_source_date_epoch): New function, gets the environment
	variable SOURCE_DATE_EPOCH and parses it as long long with error 
	handling.
	* c-common.h (get_source_date_epoch): Prototype.
	* c-lex.c (c_lex_with_flags): set parse_in->source_date_epoch.

gcc/ChangeLog:

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
	    Matthias Klose  <doko@debian.org>

	* doc/cppenv.texi: Document SOURCE_DATE_EPOCH environment variable.

libcpp/ChangeLog:

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
	    Matthias Klose  <doko@debian.org>

	* include/cpplib.h (cpp_init_source_date_epoch): Prototype.
	* init.c (cpp_init_source_date_epoch): New function.
	* internal.h: Added source_date_epoch variable to struct
	cpp_reader to store a reproducible date.
	* macro.c (_cpp_builtin_macro_text): Set pfile->date timestamp from 
	pfile->source_date_epoch instead of localtime if source_date_epoch is 
	set, to be used for __DATE__ and __TIME__ macros to help reproducible 
	builds.

Co-Authored-By: Matthias Klose <doko@debian.org>

From-SVN: r235550
 2016-04-28 09:12:05 +00:00
Richard Henderson
64824205cc re PR preprocessor/61817 (Inconsistent location of tokens in the expansion list of a built-in macro) 
PR preprocessor/61817
PR preprocessor/69391

  * internal.h (_cpp_builtin_macro_text): Update decl.
  * macro.c (_cpp_builtin_macro_text): Accept location for __LINE__.
  (builtin_macro): Accept a second location for __LINE__.
  (enter_macro_context): Compute both virtual and real expansion
  locations for the macro.

  * gcc.dg/pr61817-1.c: New test.
  * gcc.dg/pr61817-2.c: New test.
  * gcc.dg/pr69391-1.c: New test.
  * gcc.dg/pr69391-2.c: New test.

From-SVN: r234794
 2016-04-06 11:35:16 -07:00
David Malcolm
0afff540e6 libcpp: use better locations for _Pragma tokens (preprocessor/69126) 
gcc/testsuite/ChangeLog:
	PR preprocessor/69126
	* c-c++-common/pr69126.c: New test case.

libcpp/ChangeLog:
	PR preprocessor/69126
	* directives.c (destringize_and_run): Add expansion_loc param; use
	it when handling unexpanded pragmas to fixup the locations of the
	synthesized tokens.
	(_cpp_do__Pragma): Add expansion_loc param and use it when calling
	destringize_and_run.
	* internal.h (_cpp_do__Pragma): Add expansion_loc param.
	* macro.c (builtin_macro): Pass expansion location of _Pragma to
	_cpp_do__Pragma.

From-SVN: r232893
 2016-01-27 18:57:51 +00:00
Jakub Jelinek
818ab71a41 Update copyright years. 
From-SVN: r232055
 2016-01-04 15:30:50 +01:00
Paolo Carlini
fbb22910cf re PR preprocessor/53690 ([C++11] \u0000 and \U00000000 are wrongly encoded as U+0001.) 
/libcpp
2015-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/53690
	* charset.c (_cpp_valid_ucn): Add cppchar_t * parameter and change
	return type to bool.  Fix encoding of \u0000 and \U00000000 in C++.
	(convert_ucn): Adjust call.
	* lex.c (forms_identifier_p): Likewise.
	* internal.h (_cpp_valid_ucn): Adjust declaration.

/gcc/testsuite
2015-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/53690
	* g++.dg/cpp/pr53690.C: New.

From-SVN: r225353
 2015-07-02 18:54:41 +00:00
David Malcolm
0e50b62468 Replace line_map union with C++ class hierarchy 
gcc/ChangeLog:
	* diagnostic.c (diagnostic_report_current_module): Strengthen
	local "new_map" from const line_map * to
	const line_map_ordinary *.
	* genmatch.c (error_cb): Likewise for local "map".
	(output_line_directive): Likewise for local "map".
	* input.c (expand_location_1): Likewise for local "map".
	Pass NULL rather than &map to
	linemap_unwind_to_first_non_reserved_loc, since the value is never
	read from there, and the value written back not read from here.
	(is_location_from_builtin_token): Strengthen local "map" from
	const line_map * to const line_map_ordinary *.
	(dump_location_info): Strengthen locals "map" from
	line_map *, one to const line_map_ordinary *, the other
	to const line_map_macro *.
	* tree-diagnostic.c (loc_map_pair): Strengthen field "map" from
	const line_map * to const line_map_macro *.
	(maybe_unwind_expanded_macro_loc): Add a call to
	linemap_check_macro when writing to the "map" field of the
	loc_map_pair.
	Introduce local const line_map_ordinary * "ord_map", using it in
	place of "map" in the part of the function where we know we have
	an ordinary map.  Strengthen local "m" from const line_map * to
	const line_map_ordinary *.

gcc/ada/ChangeLog:
	* gcc-interface/trans.c (Sloc_to_locus1): Strenghthen local "map"
	from line_map * to line_map_ordinary *.

gcc/c-family/ChangeLog:
	* c-common.h (fe_file_change): Strengthen param from
	const line_map * to const line_map_ordinary *.
	(pp_file_change): Likewise.
	* c-lex.c (fe_file_change): Likewise.
	(cb_define): Use linemap_check_ordinary when invoking
	SOURCE_LINE.
	(cb_undef): Likewise.
	* c-opts.c (c_finish_options): Use linemap_check_ordinary when
	invoking cb_file_change.
	(c_finish_options): Likewise.
	(push_command_line_include): Likewise.
	(cb_file_change): Strengthen param "new_map" from
	const line_map * to const line_map_ordinary *.
	* c-ppoutput.c (cb_define): Likewise for local "map".
	(pp_file_change): Likewise for param "map" and local "from".

gcc/fortran/ChangeLog:
	* cpp.c (maybe_print_line): Strengthen local "map" from
	const line_map * to const line_map_ordinary *.
	(cb_file_change): Likewise for param "map" and local "from".
	(cb_line_change): Likewise for local "map".

libcpp/ChangeLog:
	* directives.c (do_line): Strengthen local "map" from
	const line_map * to const line_map_ordinary *.
	(do_linemarker): Likewise.
	(_cpp_do_file_change): Assert that we're not dealing with
	a macro map.  Introduce local "ord_map" via a call to
	linemap_check_ordinary, guarded within the check for
	non-NULL.  Use it for typesafety.
	* files.c (cpp_make_system_header): Strengthen local "map" from
	const line_map * to const line_map_ordinary *.
	* include/cpplib.h (struct cpp_callbacks): Likewise for second
	parameter of "file_change" callback.
	* include/line-map.h (struct line_map): Convert from a struct
	containing a union to a base class.
	(struct line_map_ordinary): Convert to a subclass of line_map.
	(struct line_map_macro): Likewise.
	(linemap_check_ordinary): Strengthen return type from line_map *
	to line_map_ordinary *, and add a const-variant.
	(linemap_check_macro): New pair of functions.
	(ORDINARY_MAP_STARTING_LINE_NUMBER): Strengthen param from
	const line_map * to const line_map_ordinary *, eliminating call
	to linemap_check_ordinary.  Likewise for the non-const variant.
	(ORDINARY_MAP_INCLUDER_FILE_INDEX): Likewise.
	(ORDINARY_MAP_IN_SYSTEM_HEADER_P): Likewise.
	(ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): Likewise.
	(ORDINARY_MAP_FILE_NAME): Likewise.
	(MACRO_MAP_MACRO): Strengthen param from const line_map * to
	const line_map_macro *.  Likewise for the non-const variant.
	(MACRO_MAP_NUM_MACRO_TOKENS): Likewise.
	(MACRO_MAP_LOCATIONS): Likewise.
	(MACRO_MAP_EXPANSION_POINT_LOCATION): Likewise.
	(struct maps_info): Replace with...
	(struct maps_info_ordinary):...this and...
	(struct maps_info_macro): ...this.
	(struct line_maps): Convert fields "info_ordinary" and
	"info_macro" to the above new structs.
	(LINEMAPS_MAP_INFO): Delete both functions.
	(LINEMAPS_MAPS): Likewise.
	(LINEMAPS_ALLOCATED): Rewrite both variants to avoid using
	LINEMAPS_MAP_INFO.
	(LINEMAPS_USED): Likewise.
	(LINEMAPS_CACHE): Likewise.
	(LINEMAPS_MAP_AT): Likewise.
	(LINEMAPS_ORDINARY_MAPS): Strengthen return type from line_map *
	to line_map_ordinary *.
	(LINEMAPS_ORDINARY_MAP_AT): Likewise.
	(LINEMAPS_LAST_ORDINARY_MAP): Likewise.
	(LINEMAPS_LAST_ALLOCATED_ORDINARY_MAP): Likewise.
	(LINEMAPS_MACRO_MAPS): Strengthen return type from line_map * to
	line_map_macro *.
	(LINEMAPS_MACRO_MAP_AT): Likewise.
	(LINEMAPS_LAST_MACRO_MAP): Likewise.
	(LINEMAPS_LAST_ALLOCATED_MACRO_MAP): Likewise.
	(linemap_map_get_macro_name): Strengthen param from
	const line_map * to const line_map_macro *.
	(SOURCE_LINE): Strengthen first param from const line_map * to
	const line_map_ordinary *, removing call to
	linemap_check_ordinary.
	(SOURCE_COLUMN): Likewise.
	(LAST_SOURCE_LINE_LOCATION): Likewise.
	(LAST_SOURCE_LINE): Strengthen first param from const line_map *
	to const line_map_ordinary *.
	(LAST_SOURCE_COLUMN): Likewise.
	(INCLUDED_FROM): Strengthen return type from line_map * to
	line_map_ordinary *., and second param from const line_map *
	to const line_map_ordinary *, removing call to
	linemap_check_ordinary.
	(MAIN_FILE_P): Strengthen param from const line_map * to
	const line_map_ordinary *, removing call to
	linemap_check_ordinary.
	(linemap_position_for_line_and_column): Strengthen param from
	const line_map * to const line_map_ordinary *.
	(LINEMAP_FILE): Strengthen param from const line_map * to
	const line_map_ordinary *, removing call to
	linemap_check_ordinary.
	(LINEMAP_LINE): Likewise.
	(LINEMAP_SYSP): Likewise.
	(linemap_resolve_location): Strengthen final param from
	const line_map ** to const line_map_ordinary **.
	* internal.h (CPP_INCREMENT_LINE): Likewise for local "map".
	(linemap_enter_macro): Strengthen return type from
	const line_map * to const line_map_macro *.
	(linemap_add_macro_token): Likewise for first param.
	* line-map.c (linemap_check_files_exited): Strengthen local "map"
	from const line_map * to const line_map_ordinary *.
	(new_linemap): Introduce local "map_size" and use it when
	calculating how large the buffer should be.  Rewrite based
	on change of info_macro and info_ordinary into distinct types.
	(linemap_add): Strengthen locals "map" and "from" from line_map *
	to line_map_ordinary *.
	(linemap_enter_macro): Strengthen return type from
	const line_map * to const line_map_macro *, and local "map" from
	line_map * to line_map_macro *.
	(linemap_add_macro_token): Strengthen param "map" from
	const line_map * to const line_map_macro *.
	(linemap_line_start): Strengthen local "map" from line_map * to
	line_map_ordinary *.
	(linemap_position_for_column): Likewise.
	(linemap_position_for_line_and_column): Strengthen first param
	from const line_map * to const line_map_ordinary *.
	(linemap_position_for_loc_and_offset): Strengthen local "map" from
	const line_map * to const line_map_ordinary *.
	(linemap_ordinary_map_lookup): Likewise for return type and locals
	"cached" and "result".
	(linemap_macro_map_lookup): Strengthen return type and locals
	"cached" and "result" from const line_map * to
	const line_map_macro *.
	(linemap_macro_map_loc_to_exp_point): Likewise for param "map".
	(linemap_macro_map_loc_to_def_point): Likewise.
	(linemap_macro_map_loc_unwind_toward_spelling): Likewise.
	(linemap_get_expansion_line): Strengthen local "map" from
	const line_map * to const line_map_ordinary *.
	(linemap_get_expansion_filename): Likewise.
	(linemap_map_get_macro_name): Strengthen param from
	const line_map * to const line_map_macro *.
	(linemap_location_in_system_header_p): Add call to
	linemap_check_ordinary in region guarded by
	!linemap_macro_expansion_map_p.  Introduce local "macro_map" via
	linemap_check_macro in other region, using it in place of "map"
	for typesafety.
	(first_map_in_common_1): Add calls to linemap_check_macro.
	(trace_include): Strengthen param "map" from const line_map * to
	const line_map_ordinary *.
	(linemap_macro_loc_to_spelling_point): Strengthen final param from
	const line_map ** to const line_map_ordinary **.  Replace a
	C-style cast with a const_cast, and add calls to
	linemap_check_macro and linemap_check_ordinary.
	(linemap_macro_loc_to_def_point): Likewise.
	(linemap_macro_loc_to_exp_point): Likewise.
	(linemap_resolve_location): Strengthen final param from
	const line_map ** to const line_map_ordinary **.
	(linemap_unwind_toward_expansion): Introduce local "macro_map" via
	a checked cast and use it in place of *map.
	(linemap_unwind_to_first_non_reserved_loc): Strengthen local
	"map1" from const line_map * to const line_map_ordinary *.
	(linemap_expand_location): Introduce local "ord_map" via a checked
	cast and use it in place of map.
	(linemap_dump): Make local "map" const.  Strengthen local
	"includer_map" from line_map * to const line_map_ordinary *.
	Introduce locals "ord_map" and "macro_map" via checked casts and
	use them in place of "map" for typesafety.
	(linemap_dump_location): Strengthen local "map" from
	const line_map * to const line_map_ordinary *.
	(linemap_get_file_highest_location): Update for elimination of
	union.
	(linemap_get_statistics): Strengthen local "cur_map" from
	line_map * to const line_map_macro *.  Update uses of sizeof to
	use the appropriate line_map subclasses.
	* macro.c (_cpp_warn_if_unused_macro): Add call to
	linemap_check_ordinary.
	(builtin_macro): Strengthen local "map" from const line_map * to
	const line_map_macro *.
	(enter_macro_context): Likewise.
	(replace_args): Likewise.
	(tokens_buff_put_token_to): Likewise for param "map".
	(tokens_buff_add_token): Likewise.

From-SVN: r223365
 2015-05-19 13:18:01 +00:00
Jakub Jelinek
fb136e35c7 re PR preprocessor/65238 (__has_attribute is not handled properly with -traditional-cpp.) 
PR preprocessor/65238
	* internal.h (_cpp_scan_out_logical_line): Add third argument.
	* directives.c (prepare_directive_trad): Pass false to it.
	* traditional.c (_cpp_read_logical_line_trad,
	_cpp_create_trad_definition): Likewise.
	(struct fun_macro): Add paramc field.
	(fun_like_macro): New function.
	(maybe_start_funlike): Handle NODE_BUILTIN macros.  Initialize
	macro->paramc field.
	(save_argument): Use macro->paramc instead of
	macro->node->value.macro->paramc.
	(push_replacement_text): Formatting fix.
	(recursive_macro): Use fun_like_macro helper.
	(_cpp_scan_out_logical_line): Likewise.  Add BUILTIN_MACRO_ARG
	argument.  Initialize fmacro.paramc field.  Handle builtin
	function-like macros.

	* c-c++-common/cpp/pr65238-1.c: New test.
	* gcc.dg/cpp/pr65238-2.c: New test.
	* gcc.dg/cpp/trad/pr65238-3.c: New test.
	* gcc.dg/cpp/trad/pr65238-4.c: New test.

From-SVN: r221587
 2015-03-23 09:02:39 +01:00
Dodji Seketeli
f8abc9ba2d PR preprocessor/64803 - __LINE__ inside macro is not constant 
Consider the example code mentionned in this PR:

 $ cat -n test.c
      1	#define C(a, b) a ## b
      2	#define L(x) C(L, x)
      3	#define M(a) goto L(__LINE__); __LINE__; L(__LINE__):
      4	M(a /* --> this is the line of the expansion point of M.  */
      5	  ); /* --> this is the line of the end of the invocation of M.  */
 $

"cc1 -quiet -E test.c" yields:

 goto L5; 5; L4:
    ;

Notice how we have a 'L4' there, where it should be L5.  That is the issue.

My understanding is that during the *second* expansion of __LINE__
(the one between the two L(__LINE__)), builtin_macro() is called by
enter_macro_context() with the location of the expansion point of M
(which is at line 4).  Then _cpp_builtin_macro_text() expands __LINE__
into the line number of the location of the last token that has been
lexed, which is the location of the closing parenthesis of the
invocation of M, at line 5.  So that invocation of __LINE__ is
expanded into 5.

Now let's see why the last invocation of __LINE__ is expanded into 4.

In builtin_macro(), we have this code at some point:

   /* Set pfile->cur_token as required by _cpp_lex_direct.  */
   pfile->cur_token = _cpp_temp_token (pfile);
   cpp_token *token = _cpp_lex_direct (pfile);
   /* We should point to the expansion point of the builtin macro.  */
   token->src_loc = loc;

The first two statements insert a new token in the stream of lexed
token and pfile->cur_token[-1], is the "new" last token that has been
lexed.  But the location of pfile->cur_token[-1] is the same location
as the location of the "previous" pfile->cur_token[-1], by courtesy of
_cpp_temp_token().  So normally, in subsequent invocations of
builtin_macro(), the location of pfile->cur_token[-1] should always be
the location of the closing parenthesis of the invocation of M at line
5.  Except that that code in master now has the statement
"token->src_loc = loc;" on the next line.  That statement actually
sets the location of pfile->cur_token[-1] to 'loc'.  Which is the
location of the expansion point of M, which is on line 4.

So in the subsequent call to builtin_macro() (for the last expansion
of __LINE__ in L(__LINE__)), for _cpp_builtin_macro_text(),
pfile->cur_token[-1].src_loc is going to have a line number of 4.

I think the core issue here is that the location that is passed to
builtin_macro() from enter_macro_context() is not correct when we are
in presence of a top-most function-like macro invocation; in that
case, that location should be the location of the closing parenthesis
of the macro invocation.  Otherwise, if we are in presence of a a
top-most object-like macro invocation then the location passed down
to builtin_macro should be the location of the expansion point of the
macro.

That way, in the particular case of the input code above, the location
received by builtin_macro() will always have line number 5.

Boostrapped and tested on x86_64-unknown-linux-gnu against trunk.

libcpp/ChangeLog:

	* internal.h (cpp_reader::top_most_macro_node): New data member.
	* macro.c (enter_macro_context): Pass the location of the end of
	the top-most invocation of the function-like macro, or the
	location of the expansion point of the top-most object-like macro.
	(cpp_get_token_1): Store the top-most macro node in the new
	pfile->top_most_macro_node data member.
	(_cpp_pop_context): Clear the new cpp_reader::top_most_macro_node
	data member.

gcc/testsuite/ChangeLog:

	* gcc.dg/cpp/builtin-macro-1.c: New test case.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>

From-SVN: r220367
 2015-02-03 10:26:46 +01:00
Jakub Jelinek
5624e564d2 Update copyright years. 
From-SVN: r219188
 2015-01-05 13:33:28 +01:00
Jakub Jelinek
1f8d3e84ee re PR preprocessor/63831 (r217292 causes segfaults with -MM) 
PR preprocessor/63831
	* c-cppbuiltin.c (c_cpp_builtins): Don't define __has_attribute
	and __has_cpp_attribute here.
	* c-ppoutput.c (init_pp_output): Set cb->has_attribute to
	c_common_has_attribute.
	* c-common.h (c_common_has_attribute): New prototype.
	* c-lex.c (init_c_lex): Set cb->has_attribute to
	c_common_has_attribute instead of cb_has_attribute.
	(get_token_no_padding): New function.
	(cb_has_attribute): Renamed to ...
	(c_common_has_attribute): ... this.  No longer static.  Use
	get_token_no_padding, require ()s, don't build TREE_LIST
	unnecessarily, fix up formatting, adjust diagnostics, call
	init_attributes.

	* directives.c (lex_macro_node): Remove __has_attribute__ handling.
	* internal.h (struct spec_node): Remove n__has_attribute__ field.
	(struct lexer_state): Remove in__has_attribute__ field.
	* macro.c (_cpp_builtin_macro_text): Handle BT_HAS_ATTRIBUTE.
	* identifiers.c (_cpp_init_hashtable): Remove __has_attribute__
	handling.
	* init.c (builtin_array): Add __has_attribute and __has_cpp_attribute.
	(cpp_init_special_builtins): Don't initialize __has_attribute
	or __has_cpp_attribute if CLK_ASM or pfile->cb.has_attribute is NULL.
	* traditional.c (enum ls): Remove ls_has_attribute,
	ls_has_attribute_close.
	(_cpp_scan_out_logical_line): Remove __has_attribute__ handling.
	* include/cpplib.h (enum cpp_builtin_type): Add BT_HAS_ATTRIBUTE.
	* pch.c (cpp_read_state): Remove __has_attribute__ handling.
	* expr.c (eval_token): Likewise.
	(parse_has_attribute): Removed.

	* c-c++-common/cpp/pr63831-1.c: New test.
	* c-c++-common/cpp/pr63831-2.c: New test.

From-SVN: r218948
 2014-12-19 13:20:58 +01:00
Edward Smith-Rowland
42fd12b1e7 cpplib.h (cpp_callbacks): Add has_attribute. 
libcpp:

2014-11-10  Edward Smith-Rowland  <3dw4rd@verizon.net>

	* include/cpplib.h (cpp_callbacks): Add has_attribute.
	* internal.h (lexer_state): Add in__has_attribute__.
	* directives.c (lex_macro_node): Prevent use of __has_attribute__
	as a macro.
	* expr.c (parse_has_attribute): New function; (eval_token): Look for
	__has_attribute__ and route to parse_has_attribute.
	* identifiers.c (_cpp_init_hashtable): Initialize n__has_attribute__.
	* pch.c (cpp_read_state): Initialize n__has_attribute__.
	* traditional.c (enum ls): Add ls_has_attribute, ls_has_attribute_close;
	(_cpp_scan_out_logical_line): Attend to __has_attribute__.


gcc/c-family:

2014-11-10  Edward Smith-Rowland  <3dw4rd@verizon.net>

	* c-cppbuiltin.c (__has_attribute, __has_cpp_attribute): New macros;
	(__cpp_rtti, __cpp_exceptions): New macros for C++98;
	(__cpp_range_based_for, __cpp_initializer_lists,
	__cpp_delegating_constructors, __cpp_nsdmi,
	__cpp_inheriting_constructors, __cpp_ref_qualifiers): New macros
	for C++11; (__cpp_attribute_deprecated): Remove in favor of
	__has_cpp_attribute.
	* c-lex.c (cb_has_attribute): New callback CPP function;
	(init_c_lex): Set has_attribute callback.


gcc/testsuite:

2014-11-10  Edward Smith-Rowland  <3dw4rd@verizon.net>

	* g++.dg/cpp1y/feat-cxx11.C: Test new feature macros for C++98
	and C++11; Test existence of __has_cpp_attribute;  Test C++11
	attributes.
	* g++.dg/cpp1y/feat-cxx11-neg.C: Ditto.
	* g++.dg/cpp1y/feat-cxx14.C: Ditto and test for C++14 attributes.
	* g++.dg/cpp1y/feat-cxx98.C: Test new feature macros for C++98.
	* g++.dg/cpp1y/feat-cxx98-neg.C: Ditto.
	* g++.dg/cpp1y/feat-neg.C: Test that __cpp_rtti, _cpp_exceptions
	will be undefined for -fno-rtti -fno-exceptions.

From-SVN: r217292
 2014-11-10 15:53:12 +00:00
Joseph Myers
be5ffc59ad Preserve original spellings of extended identifiers. 
This patch makes cpplib track the original spellings of extended
identifiers, as well as the canonical UTF-8 version, in order to
follow standard semantics properly without needing a convoluted and
undocumented canonicalization in translation phase 1 (see bug 9449
comments 39-46 regarding such a canonicalization).

The spelling is tracked in cpp_identifier and cpp_macro_arg without
making cpp_token any larger.  The original spelling is used for checks
of duplicate macro definitions, stringizing (see the C++ tests added;
this case is only an issue for C++ not C because C makes it
implementation-defined whether a \ is inserted before the \ of a UCN
in a string or character constant when stringizing, while C++ does
not), pasting (relevant when the result is then stringized for C++)
and when macro definitions are output as text (e.g. for -d options).

Once a macro has been defined, only the original spelling of the
argument names needs keeping in the argument list.  While it is being
defined, however, both spellings are needed: the original one for
subsequent saving for checks of duplicate macro definitions, and the
canonical one which is the node marked specially to generate macro
argument tokens rather than normal identifier tokens.  The buffer that
is used to save the original values of the identifier tokens is
changed so that it stores both those original values and a pointer to
the canonical hash nodes, so that those canonical nodes can be found
when their values need restoring after the macro definition has been
parsed.

I believe this covers the known standards issues in extended
identifiers support (the remaining unimplemented C99 areas in GCC all
being floating-point-related), except for C++ translation of extended
characters to UCNs in phase 1 (which I have no plans to work on).
There are however probably issues left with handling of extended
identifiers in other places, as listed in
<https://gcc.gnu.org/ml/gcc-patches/2014-11/msg00337.html> (those
issues are generally the sort of thing that could be addressed as bugs
outside development stage 1).  (The bulk of the potential issues Zack
was concerned about in 2003-5, that resulted in extended identifiers
being disabled in the absence of -fextended-identifiers, were
effectively eliminated by the audit and fixes I did in 2009, however;
that todo list reflects what was left over after that audit.)

Bootstrapped with no regressions on x86_64-unknown-linux-gnu.

libcpp:
	* include/cpp-id-data.h (struct cpp_macro): Update comment
	regarding parameters.
	* include/cpplib.h (struct cpp_macro_arg, struct cpp_identifier):
	Add spelling fields.
	(struct cpp_token): Update comment on macro_arg.
	* internal.h (_cpp_save_parameter): Add extra argument.
	(_cpp_spell_ident_ucns): New declaration.
	* lex.c (lex_identifier): Add SPELLING argument.  Set *SPELLING to
	original spelling of identifier.
	(_cpp_lex_direct): Update calls to lex_identifier.
	(_cpp_spell_ident_ucns): New function, factored out of
	cpp_spell_token.
	(cpp_spell_token): Adjust FORSTRING argument semantics to return
	original spelling of identifiers.  Use _cpp_spell_ident_ucns in
	!FORSTRING case.
	(_cpp_equiv_tokens): Check spellings of identifiers and macro
	arguments are identical.
	* macro.c (macro_arg_saved_data): New structure.
	(paste_tokens): Use original spellings of identifiers from
	cpp_spell_token.
	(_cpp_save_parameter): Add argument SPELLING.  Save both canonical
	node and its value.
	(parse_params): Update calls to _cpp_save_parameter.
	(lex_expansion_token): Save spelling of macro argument tokens.
	(_cpp_create_definition): Extract canonical node from saved data.
	(cpp_macro_definition): Use UCNs in spelling of macro name.  Use
	original spellings of macro argument tokens and identifiers.
	* traditional.c (scan_parameters): Update call to
	_cpp_save_parameter.

gcc:
	* doc/invoke.texi (-std=c99, -std=c11): Don't refer to corner
	cases of extended identifiers.

gcc/testsuite:
	* g++.dg/cpp/ucnid-2.C, g++.dg/cpp/ucnid-3.C,
	gcc.dg/cpp/ucnid-11.c, gcc.dg/cpp/ucnid-12.c,
	gcc.dg/cpp/ucnid-13.c, gcc.dg/cpp/ucnid-14.c,
	gcc.dg/cpp/ucnid-15.c: New tests.

From-SVN: r217202
 2014-11-06 21:08:52 +00:00
Edward Smith-Rowland
a15f7cb8b8 Implement SD-6: SG10 Feature Test Recommendations 
2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* internal.h (lexer_state, spec_nodes): Add in__has_include__.
	* directives.c: Support __has_include__ builtin.
	* expr.c (parse_has_include): New function to parse __has_include__
	builtin; (eval_token()): Use it.
	* files.c (_cpp_has_header()): New funtion to look for header;
	(open_file_failed()): Not an error to not find a header file for
	__has_include__.
	* identifiers.c (_cpp_init_hashtable()): Add entry for __has_include__.
	* pch.c (cpp_read_state): Lookup __has_include__.
	* traditional.c (enum ls, _cpp_scan_out_logical_line()): Walk through
	__has_include__ statements.

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* c-cppbuiltin.c (c_cpp_builtins()): Define language feature
	macros and the __has_header macro.

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* include/bits/basic_string.h: Add __cpp_lib feature test macro.
	* include/bits/stl_algobase.h: Ditto.
	* include/bits/stl_function.h: Ditto.
	* include/bits/unique_ptr.h: Ditto.
	* include/std/chrono: Ditto.
	* include/std/complex: Ditto.
	* include/std/iomanip: Ditto.
	* include/std/shared_mutex: Ditto.
	* include/std/tuple: Ditto.
	* include/std/type_traits: Ditto.
	* include/std/utility: Ditto.
	* testsuite/experimental/feat-cxx14.cc: New.
	* testsuite/experimental/feat-lib-fund.cc: New.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
	* testsuite/20_util/duration/literals/range.cc: Adjust.
	* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust.
	* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Adjust.
	* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Adjust.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust.
	* testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust.
	* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
	Adjust.

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* g++.dg/cpp1y/feat-cxx11-neg.C: New.
	* g++.dg/cpp1y/feat-cxx11.C: New.
	* g++.dg/cpp1y/feat-cxx14.C: New.
	* g++.dg/cpp1y/feat-cxx98.C: New.
	* g++.dg/cpp1y/feat-cxx98-neg.C: New.
	* g++.dg/cpp1y/phoobhar.h: New.
	* g++.dg/cpp1y/testinc/phoobhar.h: New.

From-SVN: r215752
 2014-10-01 11:49:23 +00:00
Richard Sandiford
35c3d610e3 Update copyright years in libcpp/ 
From-SVN: r206293
 2014-01-02 22:24:45 +00:00
Joseph Myers
d3f4ff8b51 ucnid-2011-1.c: New test. 
gcc/testsuite:
	* c-c++-common/cpp/ucnid-2011-1.c: New test.

libcpp:
	* ucnid.tab: Add C11 and C11NOSTART data.
	* makeucnid.c (digit): Rename enum value to N99.
	(C11, N11, all_languages): New enum values.
	(NUM_CODE_POINTS, MAX_CODE_POINT): New macros.
	(flags, decomp, combining_value): Use NUM_CODE_POINTS as array
	size.
	(decomp): Use unsigned int as element type.
	(all_decomp): New array.
	(read_ucnid): Handle C11 and C11NOSTART.  Use MAX_CODE_POINT.
	(read_table): Use MAX_CODE_POINT.  Store all decompositions in
	all_decomp.
	(read_derived): Use MAX_CODE_POINT.
	(write_table): Use NUM_CODE_POINTS.  Print N99, C11 and N11
	flags.  Print whole array variable declaration rather than just
	array contents.
	(char_id_valid, write_context_switch): New functions.
	(main): Call write_context_switch.
	* ucnid.h: Regenerate.
	* include/cpplib.h (struct cpp_options): Add c11_identifiers.
	* init.c (struct lang_flags): Add c11_identifiers.
	(cpp_set_lang): Set c11_identifiers option from selected language.
	* internal.h (struct normalize_state): Document "previous" as
	previous starter character.
	(NORMALIZE_STATE_UPDATE_IDNUM): Take character as argument.
	* charset.c (DIG): Rename enum value to N99.
	(C11, N11): New enum values.
	(struct ucnrange): Give name to struct.  Use short for flags and
	unsigned int for end of range.  Include ucnid.h for whole variable
	declaration.
	(ucn_valid_in_identifier): Allow for characters up to 0x10FFFF.
	Allow for C11 in determining valid characters and valid start
	characters.  Use check_nfc for non-Hangul context-dependent
	checks.  Only store starter characters in nst->previous.
	(_cpp_valid_ucn): Pass new argument to
	NORMALIZE_STATE_UPDATE_IDNUM.
	* lex.c (lex_identifier): Pass new argument to
	NORMALIZE_STATE_UPDATE_IDNUM.  Call NORMALIZE_STATE_UPDATE_IDNUM
	after initial non-UCN part of identifier.
	(lex_number): Pass new argument to NORMALIZE_STATE_UPDATE_IDNUM.

From-SVN: r204886
 2013-11-16 00:05:08 +00:00
Edward Smith-Rowland
7057e6452b Implement C++14 digit separators. 
libcpp:

2013-10-31  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement C++14 digit separators.
	* include/cpplib.h (cpp_options): Add digit_separators flag.
	* internal.h (DIGIT_SEP(c)): New macro.
	* expr.c (cpp_classify_number): Check improper placement of digit sep;
	(cpp_interpret_integer): Skip over digit separators.
	* init.c (lang_flags): Add digit_separators flag; (lang_defaults): Add
	digit separator flags per language; (cpp_set_lang): Set
	digit_separators
	* lex.c (lex_number): Add digits separator to allowable characters for
	C++14.


gcc/c-family:

2013-10-31  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement C++14 digit separators.
	* c-lex.c (interpret_float): Remove digit separators from scratch string
	before building real literal.


gcc/testsuite:

2013-10-31  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement C++14 digit separators.
	* g++.dg/cpp1y/digit-sep.C: New.
	* g++.dg/cpp1y/digit-sep-neg.C: New.
	* g++.dg/cpp1y/digit-sep-cxx11-neg.C: New.


libstdc++-v3:

2013-10-31  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement C++14 digit separators.
	* include/include/bits/parse_numbers.h: Change struct _Digit<_Base, '`'>
	to struct _Digit<_Base, '\''>.

From-SVN: r204260
 2013-10-31 14:01:23 +00:00
Jakub Jelinek
28937f1196 re PR middle-end/56461 (GCC is leaking lots of memory) 
PR middle-end/56461
	* internal.h (struct cpp_buffer): Add to_free field.
	(_cpp_pop_file_buffer): Add third argument.
	* files.c (_cpp_stack_file): Set buffer->to_free.
	(_cpp_pop_file_buffer): Add to_free argument.  Free to_free
	if non-NULL, and if equal to file->buffer_start, also clear
	file->buffer{,_start,_valid}.
	* directives.c (_cpp_pop_buffer): Pass buffer->to_free
	to _cpp_pop_file_buffer.

From-SVN: r196497
 2013-03-06 17:18:40 +01:00
Richard Sandiford
500f3ed906 Update copyright years in libcpp. 
From-SVN: r195162
 2013-01-14 18:13:59 +00:00
Joseph Myers
1efcb8c6f6 gcc: 
* config.gcc (*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu |
	*-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu): Use
	glibc-c.o in c_target_objs and cxx_target_objs.  Use t-glibc in
	tmake_file.  Set target_has_targetcm.
	(tilegx-*-linux*, tilepro-*-linux*): Append to c_target_objs and
	cxx_target_objs rather than overriding previous value.
	* config/glibc-c.c, config/t-glibc: New.
	* doc/tm.texi.in (TARGET_C_PREINCLUDE): New @hook.
	* doc/tm.texi: Regenerate.
	* hooks.c (hook_constcharptr_void_null): New.
	* hooks.h (hook_constcharptr_void_null): Declare.

gcc/c-family:
	* c-common.h (pch_cpp_save_state): Declare.
	* c-target.def (c_preinclude): New hook.
	* c-opts.c (done_preinclude): New.
	(push_command_line_include): Handle default preincluded header.
	(cb_file_change): Call pch_cpp_save_state when calling
	push_command_line_include.
	* c-pch.c (pch_ready_to_save_cpp_state, pch_cpp_state_saved)
	(pch_cpp_save_state): New.
	(pch_init): Call pch_cpp_save_state conditionally, instead of
	calling cpp_save_state.

gcc/testsuite:
	* gcc.dg/c99-predef-1.c: New test.
	* gcc.dg/cpp/cmdlne-dU-1.c, gcc.dg/cpp/cmdlne-dU-2.c,
	gcc.dg/cpp/cmdlne-dU-3.c, gcc.dg/cpp/cmdlne-dU-4.c,
	gcc.dg/cpp/cmdlne-dU-5.c, gcc.dg/cpp/cmdlne-dU-6.c,
	gcc.dg/cpp/cmdlne-dU-7.c, gcc.dg/cpp/cmdlne-dU-8.c,
	gcc.dg/cpp/cmdlne-dU-9.c, gcc.dg/cpp/cmdlne-dU-10.c,
	gcc.dg/cpp/cmdlne-dU-11.c, gcc.dg/cpp/cmdlne-dU-12.c,
	gcc.dg/cpp/cmdlne-dU-13.c, gcc.dg/cpp/cmdlne-dU-14.c,
	gcc.dg/cpp/cmdlne-dU-15.c, gcc.dg/cpp/cmdlne-dU-16.c,
	gcc.dg/cpp/cmdlne-dU-17.c, gcc.dg/cpp/cmdlne-dU-18.c,
	gcc.dg/cpp/cmdlne-dU-19.c, gcc.dg/cpp/cmdlne-dU-20.c,
	gcc.dg/cpp/cmdlne-dU-21.c, gcc.dg/cpp/cmdlne-dU-22.c,
	gcc.dg/cpp/mi5.c, gcc.dg/cpp/multiline.c: Add -nostdinc to
	dg-options.

libcpp:
	* files.c (struct _cpp_file): Add implicit_preinclude.
	(pch_open_file): Allow a previously opened implicitly included
	file.
	(_cpp_find_file): Add implicit_preinclude argument.  Free file and
	do not call open_file_failed if implicit_preinclude.  Store
	implicit_preinclude value.
	(_cpp_stack_include, _cpp_fake_include, _cpp_compare_file_date):
	Update calls to _cpp_find_file.
	(_cpp_stack_include): Handle IT_DEFAULT.
	(cpp_push_default_include): New.
	* include/cpplib.h (cpp_push_default_include): Declare.
	* init.c (cpp_read_main_file): Update call to _cpp_find_file.
	* internal.h (enum include_type): Add IT_DEFAULT.
	(_cpp_find_file): Update prototype.

From-SVN: r192715
 2012-10-23 15:55:55 +01:00
Diego Novillo
0823efedd0 backport: As described in http://gcc.gnu.org/ml/gcc/2012-08/msg00015.html... 
Merge from cxx-conversion branch (http://gcc.gnu.org/wiki/cxx-conversion).

As described in http://gcc.gnu.org/ml/gcc/2012-08/msg00015.html, this patch
changes the default bootstrap process so that stage 1 always builds with a C++
compiler.

Other than the bootstrap change, the patch makes no functional changes to the
compiler.  Everything should build as it does now in trunk.  The main
changes in this patch are:

1- Configuration changes.
2- Re-write of VEC.
3- Re-write of gengtype to support C++ templates and
   user-provided marking functions.
4- New hash table class.
5- Re-write double_int.
6- Implement tree macros as inline functions so they can be
   called from gdb.

As discussed before, several of these changes do not fully change
the call sites to use the new APIs.

The bootstrap changes have already been tested on a wide range of
targets (http://gcc.gnu.org/wiki/CppBuildStatus).  Additionally,
I have tested the merged trunk on: x86_64-unknown-linux-gnu,
mips64el-unknown-linux-gnu, powerpc64-unknown-linux-gnu,
i686-pc-linux-gnu, and ia64-unknown-linux-gnu.

ChangeLog
2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.

	* Makefile.tpl (STAGE[+id+]_CXXFLAGS): Remove
	POSTSTAGE1_CONFIGURE_FLAGS.
	* Makefile.in: Regenerate.
	* configure.ac (ENABLE_BUILD_WITH_CXX): Remove.  Update all users.
	Force C++ when bootstrapping.
	* configure: Regenerate.


libcpp/ChangeLog
2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.  Configury.

	* Makefile.in: Remove all handlers of ENABLE_BUILD_WITH_CXX.
	* configure.ac: Likewise.
	* configure: Regenerate.

2012-08-14   Lawrence Crowl  <crowl@google.com>

	Merge from cxx-conversion branch.  New C++ hash table.

	* include/symtab.h (typedef struct ht hash_table): Change the typedef
	name to cpp_hash_table.  Update all users of the typedef.

gcc/ChangeLog
2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.  Configury.

	* configure.ac (CXX_FOR_BUILD): Define and substitute.
	(BUILD_CXXFLAGS): Define.
	Remove all handlers of ENABLE_BUILD_WITH_CXX.
	Force all build to be with C++.
	* Makefile.in (BUILD_CXXFLAGS): Use it.
	Remove all handlers of ENABLE_BUILD_WITH_CXX.
	* configure: Regenerate.
	* config.in: Regenerate.
	* doc/install.texi: Remove documentation for --enable-build-with-cxx
	and --enable-build-poststage1-with-cxx.

2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.  Re-implement VEC in C++.

	* vec.c (vec_heap_free): Convert into a template function.
	(vec_gc_o_reserve_1): Make extern.
	(vec_gc_p_reserve): Remove.
	(vec_gc_p_reserve_exact): Remove.
	(vec_gc_o_reserve): Remove.
	(vec_gc_o_reserve_exact): Remove.
	(vec_heap_o_reserve_1): Make extern.
	(vec_heap_p_reserve): Remove.
	(vec_heap_p_reserve_exact): Remove.
	(vec_heap_o_reserve): Remove.
	(vec_heap_o_reserve_exact): Remove.
	(vec_stack_p_reserve): Remove.
	(vec_stack_p_reserve_exact): Remove.
	* vec.h (VEC_CHECK_INFO, VEC_CHECK_DECL, VEC_CHECK_PASS,
	VEC_ASSERT, VEC_ASSERT_FAIL, vec_assert_fail): Move earlier
	in the file.
	(VEC): Define to vec_t<T>.
	(vec_allocation_t): Define.
	(struct vec_prefix): Move earlier in the file.
	(vec_t<T>): New template.
	(DEF_VEC_I, DEF_VECL_ALLOC_I, DEF_VEC_P, DEF_VEC_ALLOC_P,
	DEF_VEC_O, DEF_VEC_ALLOC_P, DEF_VEC_O, DEF_VEC_ALLOC_O,
	DEF_VEC_ALLOC_P_STACK, DEF_VEC_ALLOC_O_STACK,
	DEF_VEC_ALLOC_I_STACK): Expand to 'struct vec_swallow_trailing_semi'.
	(DEF_VEC_A): Provide template instantiations for
	GC/PCH markers that do not traverse the vector.
	(vec_stack_p_reserve): Remove.
	(vec_stack_p_reserve_exact): Remove.
	(vec_stack_p_reserve_exact_1): Remove.
	(vec_stack_o_reserve): Remove.
	(vec_stack_o_reserve_exact): Remove.
	(vec_stack_free): Re-write as a template function.
	(vec_reserve): New template function.
	(vec_reserve_exact): New template function.
	(vec_heap_free): New template function if GATHER_STATISTICS is
	defined.  Otherwise, macro that expands to free().
	(VEC_length_1): New template function.
	(VEC_length): Call it.
	(VEC_empty_1): New template function.
	(VEC_empty): Call it.
	(VEC_address_1): New template function.
	(VEC_address): Call it.
	(VEC_last_1): New template function.
	(VEC_last): Call it.  Change return type to T&.
	Change all users that used VEC_Os.
	(VEC_index_1): New template function.
	(VEC_index): Call it.  Return a T& instead of a T*.
	Update all callers that were using VEC_O before.
	(VEC_iterate_1): New template function.
	(VEC_iterate): Call it.
	(VEC_embedded_size_1): New template function.
	(VEC_embedded_size): Call it.
	(VEC_embedded_init_1): New template function.
	(VEC_embedded_init): Call it.
	(VEC_alloc_1): New template function.
	(VEC_alloc): Call it.  If A is 'stack', call XALLOCAVAR to
	do the allocation.
	(VEC_free_1): New template function.
	(VEC_free): Call it.
	(VEC_copy_1): New template function.
	(VEC_copy): Call it.
	(VEC_space_1): New template function
	(VEC_space): Call it.
	(VEC_reserve_1): New template function.
	(VEC_reserve): Call it.
	(VEC_reserve_exact_1): New template function.
	(VEC_reserve_exact): Call it.
	(VEC_splice_1): New template function.
	(VEC_splice): Call it.
	(VEC_safe_splice_1): New template function.
	(VEC_safe_splice): Call it.
	(VEC_quick_push_1): New template function.  Create two overloads, one
	accepting T, the other accepting T *.  Update all callers
	where T and T * are ambiguous.
	(VEC_quick_push): Call it.
	(VEC_safe_push_1): New template function. Create two overloads, one
	accepting T, the other accepting T *.  Update all callers
	where T and T * are ambiguous.
	(VEC_safe_push): Call it.
	(VEC_pop_1): New template function.
	(VEC_pop): Call it.
	(VEC_truncate_1): New template function.
	(VEC_truncate): Call it.
	(VEC_safe_grow_1): New template function.
	(VEC_safe_grow): Call it.
	(VEC_safe_grow_cleared_1): New template function.
	(VEC_safe_grow_cleared): Call it.
	(VEC_replace_1): New template function.
	(VEC_replace): Call it.  Always accept T instead of T*.
	Update all callers that used VEC_Os.
	(VEC_quick_insert_1): New template function.
	(VEC_quick_insert): Call it.
	(VEC_safe_insert_1): New template function.
	(VEC_safe_insert): Call it.
	(VEC_ordered_remove_1): New template function.
	(VEC_ordered_remove): Call it.
	(VEC_unordered_remove_1): New template function.
	(VEC_unordered_remove): Call it.
	(VEC_block_remove_1): New template function.
	(VEC_block_remove): Call it.
	(VEC_lower_bound_1): New template function.
	(VEC_lower_bound): Call it.
	(VEC_OP): Remove.
	(DEF_VEC_FUNC_P): Remove.
	(DEF_VEC_ALLOC_FUNC_P): Remove.
	(DEF_VEC_NONALLOC_FUNCS_P): Remove.
	(DEF_VEC_FUNC_O): Remove.
	(DEF_VEC_ALLOC_FUNC_O): Remove.
	(DEF_VEC_NONALLOC_FUNCS_O): Remove.
	(DEF_VEC_ALLOC_FUNC_I): Remove.
	(DEF_VEC_NONALLOC_FUNCS_I): Remove.
	(DEF_VEC_ALLOC_FUNC_P_STACK): Remove.
	(DEF_VEC_ALLOC_FUNC_O_STACK): Remove.
	(DEF_VEC_ALLOC_FUNC_I_STACK): Remove.
	(vec_reserve_exact): New template function.

	* gengtype-lex.l (DEF_VEC_ALLOC_[IOP]/{EOID}): Remove.
	* gengtype-parse.c (token_names): Remove DEF_VEC_ALLOC_[IOP].
	(typedef_name): Emit vec_t<C1> instead of VEC_C1_C2.
	(def_vec_alloc): Remove.  Update all callers.
	* gengtype.c (filter_type_name): New.
	(output_mangled_typename): Call it.
	(write_func_for_structure): Likewise.
	(write_types): Likewise.
	(write_root): Likewise.
	(write_typed_alloc_def): Likewise.
	(note_def_vec): Emit vec_t<TYPE_NAME> instead of VEC_TYPE_NAME_base.
	(note_def_vec_alloc): Remove.
	* gengtype.h (note_def_vec_alloc): Remove.
	(DEFVEC_ALLOC): Remove token code.

	* df-scan.c (df_bb_verify): Remove call to df_free_collection_rec
	inside the insn traversal loop.
	* gimplify.c (gimplify_compound_lval): Rename STACK to EXPR_STACK.
	* ipa-inline.c (inline_small_functions): Rename HEAP to EDGE_HEAP.
	* reg-stack.c (stack): Rename to STACK_PTR.  Update all users.
	* tree-vrp.c (stack): Rename to EQUIV_STACK.  Update all users.

	* config/bfin/bfin.c (hwloop_optimize): Update some calls to
	VEC_* for vectors of non-pointers.
	* config/c6x/c6x.c (try_rename_operands): Likewise.
	(reshuffle_units): Likewise.
	* config/mips/mips.c (mips_multi_start): Likewise.
	(mips_multi_add): Likewise.
	(mips_multi_copy_insn): Likewise.
	(mips_multi_set_operand): Likewise.
	* hw-doloop.c (discover_loop): Likewise.
	(discover_loops): Likewise.
	(reorg_loops): Likewise.

2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.  C++ support in gengtype.

	* coretypes.h (gt_pointer_operator): Move from ...
	* ggc.h: ... here.
	* doc/gty.texi: Document support for C++ templates and
	user-provided markers.
	* gcc/gengtype-lex.l: Update copyright year.
	Remove support for recognizing DEF_VEC_O, DEF_VEC_P and
	DEFVEC_I.
	* gengtype-parse.c: Update copyright year.
	(token_names): Remove DEF_VEC_O, DEF_VEC_P and DEF_VEC_I.
	(require_template_declaration): New.
	(typedef_name): Call it.
	(type): Replace IS_UNION with KIND. Replace all users.
	(def_vec): Remove.  Update all users.
	* gengtype-state.c (type_lineloc): Handle TYPE_USER_STRUCT.
	(write_state_user_struct_type): New.
	(write_state_type): Call it.
	(read_state_user_struct_type): New.
	(read_state_type): Call it.
	* gengtype.c: Update copyright year.
	(dump_pair): Move declaration to the top.
	(dump_type): Likewise.
	(dump_type_list): Likewise.
	(dbgprint_count_type_at): Handle TYPE_USER_STRUCT.
	(create_user_defined_type): New.
	(resolve_typedef): Call it.
	(new_structure): Replace argument ISUNION with KIND.
	Change users to refer to KIND directly.
	Update all callers.
	(find_structure): Likewise.
	(set_gc_used_type): Handle TYPE_USER_STRUCT.
	(create_file): Update HDR to include new copyright year.
	(struct walk_type_data): Add field IN_PTR_FIELD.
	(output_mangled_typename): Handle TYPE_USER_STRUCT.
	(walk_type): Set D->IN_PTR_FIELD when walking a TYPE_POINTER.
	Clear it afterwards.
	Handle TYPE_USER_STRUCT.
	(write_types_process_field): Handle TYPE_USER_STRUCT.
	(get_type_specifier): Move earlier in the file.
	(write_type_decl): New.
	(write_marker_function_name): New.
	(write_user_func_for_structure_ptr): New.
	(write_user_func_for_structure_body): New.
	(write_user_marking_functions): New.
	(write_func_for_structure): Call write_marker_function_name
	and write_type_decl.
	Do not call walk_type for TYPE_USER_STRUCT. Emit a call to the user
	function directly.
	Call write_user_marking_functions on TYPE_USER_STRUCTs.
	(write_types_local_user_process_field): New.
	(write_pch_user_walking_for_structure_body): New.
	(write_pch_user_walking_functions): New.
	(write_types_local_process_field): Handle TYPE_USER_STRUCT.
	(write_local_func_for_structure): Do not call walk_type for
	TYPE_USER_STRUCT. Instead, emit the call to gt_pch_nx directly.
	Call write_pch_user_walking_functions for TYPE_USER_STRUCTs.
	(write_root): Handle TYPE_USER_STRUCT.
	(vec_prefix_type): Remove.  Update all users.
	(note_def_vec): Remove.  Update all users.
	(dump_typekind): Handle TYPE_USER_STRUCT.
	(dump_type): Initialize SEEN_TYPES, if needed.
	Handle TYPE_USER_STRUCT.
	(dump_everything): Do not initialize SEEN_TYPES.
	* gengtype.h: Update copyright year.
	(enum typekind): Add TYPE_USER_STRUCT.
	(union_or_struct_p): Rename from UNION_OR_STRUCT_P.
	Convert into function.
	Add an overload taking const_type_p.
	Update all callers.
	(new_structure): Change second field to type enum typekind.
	Update all users.
	(find_structure): Likewise.
	(note_def_vec): Remove.
	(DEFVEC_OP): Remove.
	(DEFVEC_I): Remove.
	* ggc-page.c (gt_ggc_mx): Add entry points for marking
	'const char *&', 'unsigned char *&' and 'unsigned char&'.
	* ggc-zone.c (gt_ggc_mx): Add entry points for marking
	'const char *&' and 'unsigned char *&'.
	* stringpool.c (gt_pch_nx): Add entry points for marking
	'const char *&', 'unsigned char *&' and 'unsigned char&'.
	Add an entry point for the overload taking arguments 'unsigned char
	*', 'gt_pointer_operator' and 'void *'.
	* vec.h (struct vec_prefix): Remove GTY marker.
	(struct vec_t): Remove GTY((length)) attribute from field 'vec'.
	(gt_ggc_mx (vec_t<T> *)): New template function.
	(gt_pch_nx (vec_t<T> *)): New template function.
	(gt_pch_nx (vec_t<T *> *, gt_pointer_operator, void *)): New template
	function.
	(gt_pch_nx (vec_t<T> *, gt_pointer_operator, void *)): New template
	function.

	* basic-block.h (struct edge_def): Mark GTY((user)).
	Remove all GTY markers from fields.
	(gt_ggc_mx): Declare.
	(gt_pch_nx): Declare.
	* tree-cfg.c (gt_ggc_mx): New.
	(gt_pch_nx): New.

	* gengtype-lex.l (USER_GTY): Add pattern for "user".
	* gengtype-parse.c (option): Handle USER_GTY.
	(opts_have): New.
	(type): Call it.
	If the keyword 'user' is used, do not walk the fields
	of the structure.
	* gengtype.h (USER_GTY): Add.
	* doc/gty.texi: Update.

2012-08-14   Lawrence Crowl  <crowl@google.com>

	Merge cxx-conversion branch.  Implement C++ hash table.

	* hash-table.h: New. Implementation borrowed from libiberty/hashtab.c.
	* hash-table.c: Likewise.
	* tree-ssa-tail-merge.c: Include hash-table.h instead of hashtab.h.
	(static htab_t same_succ_htab): Change type to hash_table;
	move specification of helper functions from create call to declaration.
	Change users to invoke member functions.
	(same_succ_print_traverse): Make extern ssa_.... Change callers.
	Remove void* casting.
	(same_succ_hash): Likewise.
	(same_succ_equal): Likewise.
	(same_succ_delete): Likewise.
	* tree-ssa-threadupdate.c: Include hash-table.h.
	(struct local_info): Rename to ssa_local_info_t to avoid overloading
	the type name local_info with the variable name local_info.
	(static htab_t redirection_data): Change type to hash_table.
	Move specification of helper functions from create call to declaration.
	Change users to invoke member functions.
	(redirection_data_hash): Make extern ssa_.... Change callers.
	Remove void* casting.
	(redirection_data_eq): Likewise.
	(fix_duplicate_block_edges): Likewise.
	(create_duplicates): Likewise.
	(fixup_template_block): Likewise.
	(redirect_edges): Likewise.
	(lookup_redirection_data): Change types associated with the hash table
	from void* to their actual type. Remove unnecessary casts.
	* tree-ssa-ccp.c: Include hash-table.h.
	(typedef gimple_htab): New.  Uses hash_table.  Replace specific uses
	of htab_t with gimple_htab.  Change users to invoke member functions.
	Move specification of helper functions from create call to declaration.
	* tree-ssa-coalesce.c: Include hash-table.h instead of hashtab.h.
	(hash_ssa_name_by_var): Make extern. Remove void* casting.
	(eq_ssa_name_by_var): Likewise.
	(coalesce_ssa_name): Change type of local static htab_t ssa_name_hash
	to hash_table. Change users to invoke member functions.
	Move specification of helper functions from create call to declaration.
	* coverage.c: Include hash-table.h instead of hashtab.h.
	(static htab_t counts_hash): Change type to hash_table;
	move specification of helper functions from create call to declaration.
	Change users to invoke member functions.
	(htab_counts_entry_hash): Make extern. Rename with coverage_... instead
	of htab_... Remove void* casting.
	(htab_counts_entry_eq): Likewise.
	(htab_counts_entry_del): Likewise.
	* tree-ssa-pre.c: Include hash-table.h instead of hashtab.h.
	(static htab_t expression_to_id): Change type to hash_table.
	Move specification of helper functions from create call to declaration.
	Change users to invoke member functions.
	(static htab_t phi_translate_table): Likewise.
	(pre_expr_eq): Make extern ssa_.... Change callers.
	Remove void* casting.
	(pre_expr_hash): Likewise.
	(expr_pred_trans_hash): Likewise.
	(expr_pred_trans_eq): Likewise.
	(alloc_expression_id): Change types associated with the hash table
	from void* to their actual type. Remove unnecessary casts.
	(lookup_expression_id): Likewise.
	(phi_trans_lookup): Likewise.
	(phi_trans_add): Likewise.
	* stringpool.c: Rename uses of libcpp typedef hash_table to
	cpp_hash_table.
	* Makefile.in: Add hash-table.o to OBJS-libcommon-target.
	Add $(HASH_TABLE_H). Add new dependences on $(HASH_TABLE_H).

2012-08-14   Lawrence Crowl  <crowl@google.com>

	Merge from cxx-conversion branch.  Re-write double_int in C++.

	* hash-table.h
	(typedef double_int): Change to struct (POD).
	(double_int::make): New overloads for int to double-int conversion.
	(double_int::mask): New.
	(double_int::max_value): New.
	(double_int::min_value): New.
	(double_int::operator ++): New.
	(double_int::operator --): New.
	(double_int::operator *=): New.
	(double_int::operator +=): New.
	(double_int::operator -=): New.
	(double_int::to_signed): New.
	(double_int::to_unsigned): New.
	(double_int::fits_unsigned): New.
	(double_int::fits_signed): New.
	(double_int::fits): New.
	(double_int::trailing_zeros): New.
	(double_int::popcount): New.
	(double_int::multiple_of): New.
	(double_int::set_bit): New.
	(double_int::mul_with_sign): New.
	(double_int::operator * (binary)): New.
	(double_int::operator + (binary)): New.
	(double_int::operator - (binary)): New.
	(double_int::operator - (unary)): New.
	(double_int::operator ~ (unary)): New.
	(double_int::operator & (binary)): New.
	(double_int::operator | (binary)): New.
	(double_int::operator ^ (binary)): New.
	(double_int::and_not): New.
	(double_int::lshift): New.
	(double_int::rshift): New.
	(double_int::alshift): New.
	(double_int::arshift): New.
	(double_int::llshift): New.
	(double_int::lrshift): New.
	(double_int::lrotate): New.
	(double_int::rrotate): New.
	(double_int::div): New.
	(double_int::sdiv): New.
	(double_int::udiv): New.
	(double_int::mod): New.
	(double_int::smod): New.
	(double_int::umod): New.
	(double_int::divmod): New.
	(double_int::sdivmod): New.
	(double_int::udivmod): New.
	(double_int::ext): New.
	(double_int::zext): New.
	(double_int::sext): New.
	(double_int::is_zero): New.
	(double_int::is_one): New.
	(double_int::is_minus_one): New.
	(double_int::is_negative): New.
	(double_int::cmp): New.
	(double_int::ucmp): New.
	(double_int::scmp): New.
	(double_int::ult): New.
	(double_int::ugt): New.
	(double_int::slt): New.
	(double_int::sgt): New.
	(double_int::max): New.
	(double_int::smax): New.
	(double_int::umax): New.
	(double_int::min): New.
	(double_int::smin): New.
	(double_int::umin): New.
	(double_int::operator ==): New.
	(double_int::operator !=): New.
	(shwi_to_double_int): Change implementation to use member function.
	(double_int_minus_one): Likewise.
	(double_int_zero): Likewise.
	(double_int_one): Likewise.
	(double_int_two): Likewise.
	(double_int_ten): Likewise.
	(uhwi_to_double_int): Likewise.
	(double_int_to_shwi): Likewise.
	(double_int_to_uhwi): Likewise.
	(double_int_fits_in_uhwi_p): Likewise.
	(double_int_fits_in_shwi_p): Likewise.
	(double_int_fits_in_hwi_p): Likewise.
	(double_int_mul): Likewise.
	(double_int_mul_with_sign): Likewise.
	(double_int_add): Likewise.
	(double_int_sub): Likewise.
	(double_int_neg): Likewise.
	(double_int_div): Likewise.
	(double_int_sdiv): Likewise.
	(double_int_udiv): Likewise.
	(double_int_mod): Likewise.
	(double_int_smod): Likewise.
	(double_int_umod): Likewise.
	(double_int_divmod): Likewise.
	(double_int_sdivmod): Likewise.
	(double_int_udivmod): Likewise.
	(double_int_multiple_of): Likewise.
	(double_int_setbit): Likewise.
	(double_int_ctz): Likewise.
	(double_int_not): Likewise.
	(double_int_ior): Likewise.
	(double_int_and): Likewise.
	(double_int_and_not): Likewise.
	(double_int_xor): Likewise.
	(double_int_lshift): Likewise.
	(double_int_rshift): Likewise.
	(double_int_lrotate): Likewise.
	(double_int_rrotate): Likewise.
	(double_int_cmp): Likewise.
	(double_int_scmp): Likewise.
	(double_int_ucmp): Likewise.
	(double_int_max): Likewise.
	(double_int_smax): Likewise.
	(double_int_umax): Likewise.
	(double_int_min): Likewise.
	(double_int_smin): Likewise.
	(double_int_umin): Likewise.
	(double_int_ext): Likewise.
	(double_int_sext): Likewise.
	(double_int_zext): Likewise.
	(double_int_mask): Likewise.
	(double_int_max_value): Likewise.
	(double_int_min_value): Likewise.
	(double_int_zero_p): Likewise.
	(double_int_one_p): Likewise.
	(double_int_minus_one_p): Likewise.
	(double_int_equal_p): Likewise.
	(double_int_popcount): Likewise.
	* hash-table.c
	(double_int_mask): Reuse implementation for double_int::mask.
	(double_int_max_value): Likewise.
	(double_int_min_value): Likewise.
	(double_int_ext): Likewise.
	(double_int_zext): Likewise.
	(double_int_sext): Likewise.
	(double_int_mul_with_sign): Likewise.
	(double_int_divmod): Likewise.
	(double_int_sdivmod): Likewise.
	(double_int_udivmod): Likewise.
	(double_int_div): Likewise.
	(double_int_sdiv): Likewise.
	(double_int_udiv): Likewise.
	(double_int_mod): Likewise.
	(double_int_smod): Likewise.
	(double_int_umod): Likewise.
	(double_int_multiple_of): Likewise.
	(double_int_lshift): Likewise.
	(double_int_rshift): Likewise.
	(double_int_lrotate): Likewise.
	(double_int_rrotate): Likewise.
	(double_int_cmp): Likewise.
	(double_int_ucmp): Likewise.
	(double_int_scmp): Likewise.
	(double_int_max): Likewise.
	(double_int_smax): Likewise.
	(double_int_umax): Likewise.
	(double_int_min): Likewise.
	(double_int_smin): Likewise.
	(double_int_umin): Likewise.
	(double_int_min): Likewise.
	(double_int_min): Likewise.
	(double_int_min): Likewise.
	(double_int_min): Likewise.
	(double_int_min): Likewise.
	(double_int_min): Likewise.
	(double_int::alshift): New.
	(double_int::arshift): New.
	(double_int::llshift): New.
	(double_int::lrshift): New.
	(double_int::ult): New.
	(double_int::ugt): New.
	(double_int::slt): New.
	(double_int::sgt): New.
	(double_int_setbit): Reuse implementation for double_int::set_bit,
	which avoids a name conflict with a macro.
	(double_int_double_int_ctz): Reuse implementation for
	double_int::trailing_zeros.
	(double_int_fits_in_shwi_p): Reuse implementation for
	double_int::fits_signed.
	(double_int_fits_in_hwi_p): Reuse implementation for double_int::fits.
	(double_int_mul): Reuse implementation for binary
	double_int::operator *.
	(double_int_add): Likewise.
	(double_int_sub): Likewise.
	(double_int_neg): Reuse implementation for unary
	double_int::operator -.
	(double_int_max_value): Likewise.
	* fixed-value.c: Change to use member functions introduced above.

2012-08-14   Lawrence Crowl  <crowl@google.com>

	Merge cxx-conversion branch.  Support tree macro calling
	from gdb.

	* tree.h (tree_check): New.
	(TREE_CHECK): Use inline function above instead of __extension__.
	(tree_not_check): New.
	(TREE_NOT_CHECK): Use inline function above instead of __extension__.
	(tree_check2): New.
	(TREE_CHECK2): Use inline function above instead of __extension__.
	(tree_not_check2): New.
	(TREE_NOT_CHECK2): Use inline function above instead of __extension__.
	(tree_check3): New.
	(TREE_CHECK3): Use inline function above instead of __extension__.
	(tree_not_check3): New.
	(TREE_NOT_CHECK3): Use inline function above instead of __extension__.
	(tree_check4): New.
	(TREE_CHECK4): Use inline function above instead of __extension__.
	(tree_not_check4): New.
	(TREE_NOT_CHECK4): Use inline function above instead of __extension__.
	(tree_check5): New.
	(TREE_CHECK5): Use inline function above instead of __extension__.
	(tree_not_check5): New.
	(TREE_NOT_CHECK5): Use inline function above instead of __extension__.
	(contains_struct_check): New.
	(CONTAINS_STRUCT_CHECK): Use inline function above instead of
	__extension__.
	(tree_class_check): New.
	(TREE_CLASS_CHECK): Use inline function above instead of __extension__.
	(tree_range_check): New.
	(TREE_RANGE_CHECK): Use inline function above instead of __extension__.
	(omp_clause_subcode_check): New.
	(OMP_CLAUSE_SUBCODE_CHECK): Use inline function above instead of
	__extension__.
	(omp_clause_range_check): New.
	(OMP_CLAUSE_RANGE_CHECK): Use inline function above instead of
	__extension__.
	(expr_check): New.
	(EXPR_CHECK): Use inline function above instead of __extension__.
	(non_type_check): New.
	(NON_TYPE_CHECK): Use inline function above instead of __extension__.
	(tree_vec_elt_check): New.
	(TREE_VEC_ELT_CHECK): Use inline function above instead of
	__extension__.
	(omp_clause_elt_check): New.
	(OMP_CLAUSE_ELT_CHECK): Use inline function above instead of
	__extension__.
	(tree_operand_check): New.
	(TREE_OPERAND_CHECK): Use inline function above instead of
	__extension__.
	(tree_operand_check_code): New.
	(TREE_OPERAND_CHECK_CODE): Use inline function above instead of
	__extension__.
	(TREE_CHAIN): Simplify implementation.
	(TREE_TYPE): Simplify implementation.
	(tree_operand_length): Move for compilation dependences.
	* gdbinit.in: (macro define __FILE__): New.
	(macro define __LINE__): New.
	(skip "tree.h"): New.

gcc/cp/ChangeLog
2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.  Re-write VEC in C++.

	* call.c (add_function_candidate): Remove const qualifier
	from call to VEC_index.

2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.  Configury.

	* go-c.h: Remove all handlers of ENABLE_BUILD_WITH_CXX.
	* go-gcc.cc: Likewise.
	* go-system.h: Likewise.

From-SVN: r190402
 2012-08-14 21:56:07 -04:00
Dodji Seketeli
828a7f76c7 PR preprocessor/53229 - Fix diagnostics location when pasting tokens 
As stated in the audit trail of this problem report, consider this
test case:

    $ cat test.c
	 1	struct x {
	 2	  int i;
	 3	};
	 4	struct x x;
	 5
	 6	#define TEST(X) x.##X
	 7
	 8	void foo (void)
	 9	{
	10	  TEST(i) = 0;
	11	}
    $

    $ cc1 -quiet test.c
    test.c: In function 'foo':
    test.c:10:1: error: pasting "." and "i" does not give a valid preprocessing token
       TEST(i) = 0;
     ^
    $

So, when pasting tokens, the error diagnostic uses the global and
imprecise input_location variable, leading to an imprecise output.

To properly fix this, I think libcpp should keep the token of the
pasting operator '##', instead of representing it with flag on the LHS
operand's token.  That way, it could use its location.  Doing that
would be quite intrusive though.  So this patch just uses the location
of the LHS of the pasting operator, for now.  It's IMHO better than
the current situation.

The patch makes paste_tokens take a location parameter that is used in
the diagnostics.  This change can still be useful later when we can
use the location of the pasting operator, because paste_tokens will
just be passed the new, more precise location.

Incidentally, it appeared that when getting tokens from within
preprocessor directives (like what is done in gcc.dg/cpp/paste12.c),
with -ftrack-macro-expansion disabled, the location of the expansion
point of macros was being lost because
cpp_reader::set_invocation_location wasn't being properly set.  It's
because when cpp_get_token_1 calls enter_macro_context, there is a
little period of time between the beginning of that later function and
when the macro is really pushed (and thus when the macro is really
expanded) where we wrongly consider that we are not expanding the
macro because macro_of_context is still NULL.  In that period of time,
in the occurrences of indirect recursive calls to cpp_get_token_1,
this later function wrongly sets cpp_reader::invocation_location
because cpp_reader::set_invocation_location is not being properly set.

To avoid that confusion the patch does away with
cpp_reader::set_invocation_location and introduces a new flag
cpp_reader::about_to_expand_macro_p that is set in the small time
interval exposed earlier.  A new in_macro_expansion_p is introduced as
well, so that cpp_get_token_1 can now accurately detect when we are in
the process of expanding a macro, and thus correctly collect the
location of the expansion point.

People seem to like screenshots.

Thus, after the patch, we now have:

    $ cc1 -quiet test.c
    test.c: In function 'foo':
    test.c:6:18: error: pasting "." and "i" does not give a valid preprocessing token
     #define TEST(X) x.##X
		      ^
    test.c:10:3: note: in expansion of macro 'TEST'
       TEST(i) = 0;
       ^
    $

Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk.

libcpp/

	PR preprocessor/53229
	* internal.h (cpp_reader::set_invocation_location): Remove.
	(cpp_reader::about_to_expand_macro_p): New member flag.
	* directives.c (do_pragma):  Remove Kludge as
	pfile->set_invocation_location is no more.
	* macro.c (cpp_get_token_1): Do away with the use of
	cpp_reader::set_invocation_location.  Just collect the macro
	expansion point when we are about to expand the top-most macro.
	Do not override cpp_reader::about_to_expand_macro_p.
	This fixes gcc.dg/cpp/paste12.c by making get_token_no_padding
	properly handle locations of expansion points.
	(cpp_get_token_with_location): Adjust, as
	cpp_reader::set_invocation_location is no more.
	(paste_tokens): Take a virtual location parameter for
	the LHS of the pasting operator.  Use it in diagnostics.  Update
	comments.
	(paste_all_tokens): Tighten the assert.  Propagate the location of
	the expansion point when no virtual locations are available.
	Pass the virtual location to paste_tokens.
	(in_macro_expansion_p): New static function.
	(enter_macro_context): Set the cpp_reader::about_to_expand_macro_p
	flag until we really start expanding the macro.

gcc/testsuite/

	PR preprocessor/53229
	* gcc.dg/cpp/paste6.c: Force to run without
	-ftrack-macro-expansion.
	* gcc.dg/cpp/paste8.c: Likewise.
	* gcc.dg/cpp/paste8-2.c: New test, like paste8.c but run with
	-ftrack-macro-expansion.
	* gcc.dg/cpp/paste12.c: Force to run without
	-ftrack-macro-expansion.
	* gcc.dg/cpp/paste12-2.c: New test, like paste12.c but run with
	-ftrack-macro-expansion.
	* gcc.dg/cpp/paste13.c: Likewise.
	* gcc.dg/cpp/paste14.c: Likewise.
	* gcc.dg/cpp/paste14-2.c: New test, like paste14.c but run with
	-ftrack-macro-expansion.
	* gcc.dg/cpp/paste18.c: New test.

From-SVN: r187945
 2012-05-29 11:36:29 +02:00
Gary Funck
b492b6862e re PR preprocessor/33919 (__BASE_FILE__ does not expand correctly when included from the command line) 
libcpp/
	PR preprocessor/33919
	* files.c (_cpp_get_file_name): New. Implement file name
	access function.
	* internal.h (_cpp_get_file_name): New prototype.
	* macro.c (_cpp_builtin_macro_text): Call _cpp_get_file_name()
	to use pfile->main_file in lieu of traversing INCLUDED_FROM chain.

gcc/testsuite/
	PR preprocessor/33919
	* gcc.dg/pr33919.c: New test.
	* gcc.dg/pr33919-0.h: New test header file.
	* gcc.dg/pr33919-1.h: Ditto.
	* gcc.dg/pr33919-2.h: Ditto.

From-SVN: r183003
 2012-01-09 08:48:43 +00:00
Jakub Jelinek
b0c084b712 re PR bootstrap/50237 (bootstrap comparison failure for libcpp/lex.o) 
PR bootstrap/50237
	* internal.h (_cpp_init_lexer): New prototype.
	* init.c (init_library): Call it.
	* lex.c (init_vectorized_lexer): Remove constructor attribute,
	add inline keyword.
	(HAVE_init_vectorized_lexer): Define.
	(_cpp_init_lexer): New function.

From-SVN: r182090
 2011-12-07 23:05:59 +01:00
Paolo Carlini
0c1dace382 internal.h (uxstrdup, ustrchr): Return const unsigned char *. 
2011-11-02  Paolo Carlini  <paolo.carlini@oracle.com>

	* internal.h (uxstrdup, ustrchr): Return const unsigned char *.

From-SVN: r180796
 2011-11-02 20:22:53 +00:00
Dodji Seketeli
ad2305adb4 Fix cpp_peek_token behaviour (PR bootstrap/50778) 
libcpp/

	* include/internal.h (_cpp_remaining_tokens_num_in_context): Take the
	context to act upon.
	* lex.c (_cpp_remaining_tokens_num_in_context): Likewise.  Update
	comment.
	(cpp_token_from_context_at): Likewise.
	(cpp_peek_token): Use the context to peek tokens from.

From-SVN: r180328
 2011-10-22 19:49:18 +02:00
Tom Tromey
92582b753e Generate virtual locations for tokens 
This second instalment uses the infrastructure of the previous patch
to allocate a macro map for each macro expansion and assign a virtual
location to each token resulting from the expansion.

To date when cpp_get_token comes across a token that happens to be a
macro, the macro expander kicks in, expands the macro, pushes the
resulting tokens onto a "token context" and returns a dummy padding
token. The next call to cpp_get_token goes look into the token context
for the next token [which is going to result from the previous macro
expansion] and returns it.  If the token is a macro, the macro expander
kicks in and you know the story.

This patch piggy-backs on that macro expansion process, so to speak.
First it modifies the macro expander to make it create a macro map for
each macro expansion. It then allocates a virtual location for each
resulting token.  Virtual locations of tokens resulting from macro
expansions are then stored on a special kind of context called an
"expanded tokens context".  In other words, in an expanded tokens
context, there are tokens resulting from macro expansion and their
associated virtual locations.  cpp_get_token_with_location is modified
to return the virtual location of tokens resulting from macro
expansion.  Note that once all tokens from an expanded token context have
been consumed and the context and is freed, the memory used to store the
virtual locations of the tokens held in that context is freed as well.
This helps reducing the overall peak memory consumption.

The client code that was getting macro expansion point location from
cpp_get_token_with_location now gets virtual location from it. Those
virtual locations can in turn be resolved into the different
interesting physical locations thanks to the linemap API exposed by
the previous patch.

Expensive progress. Possibly. So this whole virtual location
allocation business is switched off by default. So by default no
extended token is created. No extended token context is created
either. One has to use -ftrack-macro-expansion to switch this on. This
complicates the code but I believe it can be useful as some of our
friends found out at http://llvm.org/bugs/show_bug.cgi?id=5610

The patch tries to reduce the memory consumption by freeing some token
context memory that was being reused before. I didn't notice any
compilation slow down due to this immediate freeing on my GNU/Linux
system.

As no client code tries to resolve virtual locations to anything but
what was being done before, no new test case has been added.

Co-Authored-By: Dodji Seketeli <dodji@redhat.com>

From-SVN: r180082
 2011-10-17 11:59:12 +02:00
Tom Tromey
46427374e1 Linemap infrastructure for virtual locations 
This is the first instalment of a set which goal is to track locations
of tokens across macro expansions.  Tom Tromey did the original work
and attached the patch to PR preprocessor/7263.  This opus is a
derivative of that original work.

This patch modifies the linemap module of libcpp to add virtual
locations support.

A virtual location is a mapped location that can resolve to several
different physical locations.  It can always resolve to the spelling
location of a token.  For tokens resulting from macro expansion it can
resolve to:
  - either the location of the expansion point of the macro.
  - or the location of the token in the definition of the
  macro
  - or, if the token is an argument of a function-like macro,
  the location of the use of the matching macro parameter in
  the definition of the macro

The patch creates a new type of line map called a macro map.  For every
single macro expansion, there is a macro map that generates a virtual
location for every single resulting token of the expansion.

The good old type of line map we all know is now called an ordinary
map.  That one still encodes spelling locations as it has always had.

As a result linemap_lookup as been extended to return a macro map when
given a virtual location resulting from a macro expansion.  The layout
of structs line_map has changed to support this new type of map.  So
did the layout of struct line_maps.  Accessor macros have been
introduced to avoid messing with the implementation details of these
datastructures directly.  This helped already as we have been testing
different ways of arranging these datastructure.  Having to constantly
adjust client code that is too tied with the internals of line_map and
line_maps would have been even more painful.

Of course, many new public functions have been added to the linemap
module to handle the resolution of virtual locations.

This patch introduces the infrastructure but no part of the compiler
uses virtual locations yet.

However the client code of the linemap data structures has been
adjusted as per the changes.  E.g, it's not anymore reliable for a
client code to manipulate struct line_map directly if it just wants to
deal with spelling locations, because struct line_map can now
represent a macro map as well.  In that case, it's better to use the
convenient API to resolve the initial (possibly virtual) location to a
spelling location (or to an ordinary map) and use that.

This is the reason why the patch adjusts the Java, Ada and Fortran
front ends.

Also, note that virtual locations are not supposed to be ordered for
relations '<' and '>' anymore.  To test if a virtual location appears
"before" another one, one has to use a new operator exposed by the
line map interface.  The patch updates the only spot (in the
diagnostics module) I have found that was making the assumption that
locations were ordered for these relations.  This is the only change
that introduces a use of the new line map API in this patch, so I am
adding a regression test for it only.

From-SVN: r180081
 2011-10-17 11:58:56 +02:00
Gabriel Charette
e3dfef44ef Add ability to force lexed tokens' source_locations. 
Use it to force BUILTINS_LOCATION when declaring builtins instead of creating a <built-in> entry in the line_table which is wrong.

	* c-opts.c (c_finish_options): Force BUILTINS_LOCATION for tokens
	defined in cpp_init_builtins and c_cpp_builtins.

	gcc/fortran/ChangeLog
	* cpp.c (gfc_cpp_init): Force BUILTINS_LOCATION for tokens
	defined in cpp_define_builtins.

	libcpp/ChangeLog
	* init.c (cpp_create_reader): Inititalize forced_token_location_p.
	* internal.h (struct cpp_reader): Add field forced_token_location_p.
	* lex.c (_cpp_lex_direct): Use forced_token_location_p.
	(cpp_force_token_locations): New.
	(cpp_stop_forcing_token_locations): New.

From-SVN: r177973
 2011-08-22 20:41:07 +00:00
Kai Tietz
d687413849 re PR preprocessor/45362 (Dangling reference about saved cpp_macro for push/pop macro) 
2010-09-29  Kai Tietz  <kai.tietz@onevision.com>

	PR preprocessor/45362
	* directives.c (cpp_pop_definition): Make static.
	(do_pragma_push_macro): Reworked to store text
	definition.
	(do_pragma_pop_macro): Add free text definition.
	(cpp_push_definition): Removed.
	* include/cpplib.h (cpp_push_definition): Removed.
	(cpp_pop_definition): Likewise.
	* internal.h (def_pragma_macro): Remove member 'value'
	and add new members 'definition', 'line',
	'syshdr', 'sued' and 'is_undef'.
	* pch.c (_cpp_restore_pushed_macros): Rework to work
	on text definition and store additional macro flags.
	(_cpp_save_pushed_macros): Likewise.

From-SVN: r164729
 2010-09-29 20:18:38 +02:00
Joseph Myers
e3339d0f33 optc-gen.awk: Generate global_options initializer instead of individual variables. 
gcc:
	* optc-gen.awk: Generate global_options initializer instead of
	individual variables.  Add x_ prefix to names of structure
	members.
	* opth-gen.awk: Generate gcc_options structure.  Add x_ prefix to
	names of structure members.
	* doc/tm.texi.in (HARD_FRAME_POINTER_IS_FRAME_POINTER,
	HARD_FRAME_POINTER_IS_ARG_POINTER): Document.
	* doc/tm.texi: Regenerate.
	* alias.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER
	* builtins.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER.
	* c-parser.c (disable_extension_diagnostics,
	restore_extension_diagnostics): Update names of cpp_options
	members.
	* combine.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER
	* common.opt (fcompare-debug-second): Don't use Var.
	* config/alpha/alpha.h (target_flags): Remove.
	* config/arm/arm.h (HARD_FRAME_POINTER_IS_FRAME_POINTER,
	HARD_FRAME_POINTER_IS_ARG_POINTER): Define.
	* config/bfin/bfin.h (target_flags): Remove.
	* config/cris/cris.h (target_flags): Remove.
	* config/i386/i386-c.c (ix86_pragma_target_parse): Update names of
	cl_target_option members.
	* config/i386/i386.c (ix86_force_align_arg_pointer): Remove.
	(ix86_function_specific_print, ix86_valid_target_attribute_tree,
	ix86_can_inline_p): Update names of cl_target_option members.
	* config/i386/i386.h (ix86_isa_flags): Remove.
	* config/lm32/lm32.h (target_flags): Remove.
	* config/mcore/mcore.h (mcore_stack_increment): Remove.
	* config/mcore/mcore.md (addsi3): Remove extern declaration of
	flag_omit_frame_pointer.
	* config/mep/mep.h (target_flags): Remove.
	* config/mips/mips.h (HARD_FRAME_POINTER_IS_FRAME_POINTER,
	HARD_FRAME_POINTER_IS_ARG_POINTER): Define.
	* config/mmix/mmix.h (target_flags): Remove.
	* config/rs6000/rs6000.h (rs6000_xilinx_fpu, flag_pic,
	flag_expensive_optimizations): Remove.
	* config/s390/s390.h (flag_pic): Remove.
	* config/score/score-conv.h (target_flags): Remove.
	* config/sh/sh.h (sh_fixed_range_str): Remove.
	* config/spu/spu.h (target_flags, spu_fixed_range_string): Remove.
	* dbxout.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER
	* df-scan.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER.
	* diagnostic.c (diagnostic_initialize): Update names of
	diagnostic_context members.
	* diagnostic.h (diagnostic_context): Rename inhibit_warnings and
	warn_system_headers.
	(diagnostic_report_warnings_p): Update for new names.
	* dwarf2out.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER
	* emit-rtl.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER and
	HARD_FRAME_POINTER_IS_ARG_POINTER.
	* flags.h (flag_compare_debug): Declare.
	* ira.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER
	* opts.c (flag_compare_debug): Define.
	(common_handle_option): Update names of diagnostic_context
	members.  Handle -fcompare-debug-second.
	(fast_math_flags_struct_set_p): Update names of cl_optimization
	members.
	* reginfo.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER.
	* regrename.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER.
	* reload.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER.
	* reload1.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER.
	* resource.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER.
	* rtl.h (HARD_FRAME_POINTER_IS_FRAME_POINTER,
	HARD_FRAME_POINTER_IS_ARG_POINTER): Define and use.
	* sel-sched.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER
	* stmt.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER.

gcc/c-family:
	* c-common.c (c_cpp_error): Update names of diagnostic_context
	members.
	* c-cppbuiltin.c (c_cpp_builtins_optimize_pragma): Update names of
	cl_optimization members.
	* c-opts.c (warning_as_error_callback, c_common_handle_option,
	sanitize_cpp_opts, finish_options): Update names of cpp_options
	members.

gcc/fortran:
	* cpp.c (cpp_define_builtins): Update names of gfc_option_t
	members.
	(gfc_cpp_post_options): Update names of cpp_options members.
	(cb_cpp_error): Update names of diagnostic_context members.
	* f95-lang.c (gfc_init_builtin_functions): Update names of
	gfc_option_t members.
	* gfortran.h (gfc_option_t): Rename warn_conversion and
	flag_openmp.
	* intrinsic.c (gfc_convert_type_warn): Update names of
	gfc_option_t members.
	* options.c (gfc_init_options, gfc_post_options, set_Wall,
	gfc_handle_option): Update names of gfc_option_t members.
	* parse.c (next_free, next_fixed): Update names of gfc_option_t
	members.
	* scanner.c (pedantic): Remove extern declaration.
	(skip_free_comments, skip_fixed_comments, include_line): Update
	names of gfc_option_t members.
	* trans-decl.c (gfc_generate_function_code): Update names of
	gfc_option_t members.

gcc/java:
	* java-tree.h (flag_filelist_file, flag_assert, flag_jni,
	flag_force_classes_archive_check, flag_redundant, flag_newer,
	flag_use_divide_subroutine, flag_use_atomic_builtins,
	flag_use_boehm_gc, flag_hash_synchronization,
	flag_check_references, flag_optimize_sci, flag_indirect_classes,
	flag_indirect_dispatch, flag_store_check,
	flag_reduced_reflection): Remove.
	* jcf-dump.c (flag_newer): Remove.
	* jcf.h (quiet_flag): Remove.
	* parse.h (quiet_flag): Remove.

libcpp:
	* include/cpplib.h (cpp_options): Rename warn_deprecated,
	warn_traditional, warn_long_long and pedantic.
	* directives.c (directive_diagnostics, _cpp_handle_directive):
	Update names of cpp_options members.
	* expr.c (cpp_classify_number, eval_token): Update names of
	cpp_options members.
	* init.c (cpp_create_reader, post_options): Update names of
	cpp_options members.
	* internal.h (CPP_PEDANTIC, CPP_WTRADITIONAL): Update names of
	cpp_options members.
	* macro.c (parse_params): Update names of cpp_options members.

From-SVN: r164723
 2010-09-29 15:49:14 +01:00
Jason Merrill
00a81b8b9d More N3077 raw string changes 
More N3077 raw string changes
	* charset.c (cpp_interpret_string): Don't transform UCNs in raw
	strings.
	* lex.c (bufring_append): Split out from...
	(lex_raw_string): ...here.  Undo trigraph and line splicing
	transformations.  Do process line notes in multi-line literals.
	(_cpp_process_line_notes): Ignore notes that were already handled.

From-SVN: r157804
 2010-03-29 16:07:29 -04:00
Kai Tietz
17e7cb8550 ChangeLog for libcpp 
2009-11-11  Kai Tietz  <kai.tietz@onevision.com>

	* directives.c (do_pragma_push_macro): New pragma handler.
	(do_pragma_pop_macro): Likewise.
	(_cpp_init_internal_pragmas): Add push_macro and
	pop_macro handler to internal pragmas.
	(lex_macro_node_from_str): Removed.
	(cpp_push_definition): Replace lex_macro_node_from_str
	by _cpp_lex_identifier.
	(cpp_pop_definition): Likewise.
	* internal.h (_cpp_lex_identifier): New prototype.
	(def_pragma_macro): New structure.
	(cpp_reader): New member pushed_macros.
	* lex.c (_cpp_lex_identifier): New function.
	(lex_identifier_intern): New function.
	* init.c (cpp_create_reader): Initialize pushed_macros
	member.
	(cpp_destroy): Free elements in pushed_macros member.
	* pch.c (_cpp_save_pushed_macros): New function.
	(_cpp_restore_pushed_macros): Likewise.
	(_cpp_restore_pushed_macros): Use _cpp_save_pushed_macros.
	(cpp_read_state): Use _cpp_restore_pushed_macros.

ChangeLog for gcc

2009-11-11  Kai Tietz  <kai.tietz@onevision.com>

	* config/i386/cygming.h (HANDLE_PRAGMA_PUSH_POP_MACRO):
	Removed.
	* c-pragma.c (def_pragma_macro_value): Likewise.
	(def_pragma_macro): Likewise.
	(pushed_macro_table): Likewise.
	(HANDLE_PRAGMA_PUSH_POP_MACRO): Remove guarded
	code.
	* doc/tm.texi (HANDLE_PRAGMA_PUSH_POP_MACRO):
	Removed.

ChangeLog for gcc/testsuite

2009-11-11  Kai Tietz  <kai.tietz@onevision.com>

	* g++.dg/torture/pushpop_macro.C: New testcase.
	* gcc.c-torture/execute/pushpop_macro.c: New testcase.
	* gcc.dg/cpp/pragma-pop_macro-1.c: Allow test for all
	targets.

From-SVN: r154098
 2009-11-11 19:37:19 +01:00
Jakub Jelinek
2c6e3f5540 charset.c (cpp_init_iconv): Initialize utf8_cset_desc. 
* charset.c (cpp_init_iconv): Initialize utf8_cset_desc.
	(_cpp_destroy_iconv): Destroy utf8_cset_desc, char16_cset_desc
	and char32_cset_desc.
	(converter_for_type): Handle CPP_UTF8STRING.
	(cpp_interpret_string): Handle CPP_UTF8STRING and raw-strings.
	* directives.c (get__Pragma_string): Handle CPP_UTF8STRING.
	(parse_include): Reject raw strings.
	* include/cpplib.h (CPP_UTF8STRING): New token type.
	* internal.h (struct cpp_reader): Add utf8_cset_desc field.
	* lex.c (lex_raw_string): New function.
	(lex_string): Handle u8 string literals, call lex_raw_string
	for raw string literals.
	(_cpp_lex_direct): Call lex_string even for u8" and {,u,U,L,u8}R"
	sequences.
	* macro.c (stringify_arg): Handle CPP_UTF8STRING.

	* c-common.c (c_parse_error): Handle CPP_UTF8STRING.
	* c-lex.c (c_lex_with_flags): Likewise.  Test C_LEX_STRING_NO_JOIN
	instead of C_LEX_RAW_STRINGS.
	(lex_string): Handle CPP_UTF8STRING.
	* c-parser.c (c_parser_postfix_expression): Likewise.
	* c-pragma.h (C_LEX_RAW_STRINGS): Rename to ...
	(C_LEX_STRING_NO_JOIN): ... this.

	* parser.c (cp_lexer_print_token, cp_parser_is_string_literal,
	cp_parser_string_literal, cp_parser_primary_expression): Likewise.
	(cp_lexer_get_preprocessor_token): Use C_LEX_STRING_JOIN instead
	of C_LEX_RAW_STRINGS.

	* gcc.dg/raw-string-1.c: New test.
	* gcc.dg/raw-string-2.c: New test.
	* gcc.dg/raw-string-3.c: New test.
	* gcc.dg/raw-string-4.c: New test.
	* gcc.dg/raw-string-5.c: New test.
	* gcc.dg/raw-string-6.c: New test.
	* gcc.dg/raw-string-7.c: New test.
	* gcc.dg/utf8-1.c: New test.
	* gcc.dg/utf8-2.c: New test.
	* gcc.dg/utf-badconcat2.c: New test.
	* gcc.dg/utf-dflt2.c: New test.
	* gcc.dg/cpp/include6.c: New test.
	* g++.dg/ext/raw-string-1.C: New test.
	* g++.dg/ext/raw-string-2.C: New test.
	* g++.dg/ext/raw-string-3.C: New test.
	* g++.dg/ext/raw-string-4.C: New test.
	* g++.dg/ext/raw-string-5.C: New test.
	* g++.dg/ext/raw-string-6.C: New test.
	* g++.dg/ext/raw-string-7.C: New test.
	* g++.dg/ext/utf8-1.C: New test.
	* g++.dg/ext/utf8-2.C: New test.
	* g++.dg/ext/utf-badconcat2.C: New test.
	* g++.dg/ext/utf-dflt2.C: New test.

From-SVN: r152995
 2009-10-19 23:41:15 +02:00
Ian Lance Taylor
4851089fc6 cpp-id-data.h: Add extern "C". 
* include/cpp-id-data.h: Add extern "C".
	* include/line-map.h: Likewise.
	* include/mkdeps.h: Likewise.
	* include/symtab.h: Likewise.
	* internal.h: Likewise.

From-SVN: r148051
 2009-06-01 15:37:03 +00:00