This is the combination of two patches:
[PATCH 01/02] PR/62314: add ability to add fixit-hints
[PATCH 02/02] C FE: add fix-it hint for . vs ->
gcc/ChangeLog:
PR 62314
* diagnostic-show-locus.c (colorizer::set_fixit_hint): New.
(class layout): Update comment
(layout::print_any_fixits): New method.
(layout::move_to_column): New method.
(diagnostic_show_locus): Add call to layout.print_any_fixits.
gcc/c/ChangeLog:
PR 62314
* c-typeck.c (should_suggest_deref_p): New function.
(build_component_ref): Special-case POINTER_TYPE when
generating a "not a structure of union" error message, and
suggest a "->" rather than a ".", providing a fix-it hint.
gcc/testsuite/ChangeLog:
PR 62314
* gcc.dg/fixits.c: New file.
* gcc.dg/plugin/diagnostic-test-show-locus-ascii-bw.c
(test_fixit_insert): New.
(test_fixit_remove): New.
(test_fixit_replace): New.
* gcc.dg/plugin/diagnostic-test-show-locus-ascii-color.c
(test_fixit_insert): New.
(test_fixit_remove): New.
(test_fixit_replace): New.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
(test_show_locus): Add tests of rendering fixit hints.
libcpp/ChangeLog:
PR 62314
* include/line-map.h (source_range::intersects_line_p): New
method.
(rich_location::~rich_location): New.
(rich_location::add_fixit_insert): New method.
(rich_location::add_fixit_remove): New method.
(rich_location::add_fixit_replace): New method.
(rich_location::get_num_fixit_hints): New accessor.
(rich_location::get_fixit_hint): New accessor.
(rich_location::MAX_FIXIT_HINTS): New constant.
(rich_location::m_num_fixit_hints): New field.
(rich_location::m_fixit_hints): New field.
(class fixit_hint): New class.
(class fixit_insert): New class.
(class fixit_remove): New class.
(class fixit_replace): New class.
* line-map.c (source_range::intersects_line_p): New method.
(rich_location::rich_location): Add initialization of
m_num_fixit_hints to both ctors.
(rich_location::~rich_location): New.
(rich_location::add_fixit_insert): New method.
(rich_location::add_fixit_remove): New method.
(rich_location::add_fixit_replace): New method.
(fixit_insert::fixit_insert): New.
(fixit_insert::~fixit_insert): New.
(fixit_insert::affects_line_p): New.
(fixit_remove::fixit_remove): New.
(fixit_remove::affects_line_p): New.
(fixit_replace::fixit_replace): New.
(fixit_replace::~fixit_replace): New.
(fixit_replace::affects_line_p): New.
From-SVN: r230674
PR preprocessor/60736
* include/cpplib.h (cpp_errno_filename): New prototype.
* errors.c (cpp_errno): Don't handle msgid "" specially, use
_(msgid) instead of msgid as argument to cpp_error.
(cpp_errno_filename): New function.
* files.c (read_file_guts): Use cpp_errno_filename instead of
cpp_errno.
(open_file_failed): Likewise. Use file->name if file->path is NULL
in diagnostics.
From-SVN: r230591
This patch combines:
[PATCH 05/10] Add ranges to libcpp tokens (via ad-hoc data, unoptimized)
[PATCH 06/10] Track expression ranges in C frontend
[PATCH 07/10] Add plugin to recursively dump the source-ranges in a tree (v2)
[PATCH 08/10] Wire things up so that libcpp users get token underlines
[PATCH 09/10] Delay some resolution of ad-hoc locations, preserving ranges
[PATCH 10/10] Compress short ranges into source_location
[PATCH] libcpp: add examples to source_location description
along with fixes for the nits identified during review.
gcc/ChangeLog:
* Makefile.in (OBJS): Add gcc-rich-location.o.
* diagnostic.c (diagnostic_append_note): Pass line_table to
rich_location ctor.
(emit_diagnostic): Likewise.
(inform): Likewise.
(inform_n): Likewise.
(warning): Likewise.
(warning_at): Likewise.
(warning_n): Likewise.
(pedwarn): Likewise.
(permerror): Likewise.
(error): Likewise.
(error_n): Likewise.
(error_at): Likewise.
(sorry): Likewise.
(fatal_error): Likewise.
(internal_error): Likewise.
(internal_error_no_backtrace): Likewise.
(source_range::debug): Likewise.
* gcc-rich-location.c: New file.
* gcc-rich-location.h: New file.
* genmatch.c (fatal_at): Pass line_table to rich_location ctor.
(warning_at): Likewise.
* gimple.h (gimple_set_block): Use set_block function.
* input.c (dump_line_table_statistics): Dump stats on how many
ranges were optimized vs how many needed ad-hoc table.
(write_digit_row): Add "map" param; use its range_bits
to calculate the per-character offset.
(dump_location_info): Print the range and column bits for each
ordinary map. Use the range bits to calculate the per-character
offset. Pass the map as a new param to the various calls to
write_digit_row. Eliminate uses of
ORDINARY_MAP_NUMBER_OF_COLUMN_BITS.
* print-tree.c (print_node): Print any source range information.
* rtl-error.c (diagnostic_for_asm): Likewise.
* toplev.c (general_init): Initialize line_table's
default_range_bits.
* tree-cfg.c (move_block_to_fn): Likewise.
(move_block_to_fn): Likewise.
* tree-inline.c (copy_phis_for_bb): Likewise.
* tree.c (tree_set_block): Likewise.
(get_pure_location): New function.
(set_source_range): New functions.
(set_block): New function.
(set_source_range): New functions.
* tree.h (CAN_HAVE_RANGE_P): New.
(EXPR_LOCATION_RANGE): New.
(EXPR_HAS_RANGE): New.
(get_expr_source_range): New inline function.
(DECL_LOCATION_RANGE): New.
(set_source_range): New decls.
(get_decl_source_range): New inline function.
gcc/ada/ChangeLog:
* gcc-interface/trans.c (Sloc_to_locus): Add line_table param when
calling linemap_position_for_line_and_column.
gcc/c-family/ChangeLog:
* c-common.c (c_fully_fold_internal): Capture existing souce_range,
and store it on the result.
* c-opts.c (c_common_init_options): Set
global_dc->colorize_source_p.
gcc/c/ChangeLog:
* c-decl.c (warn_defaults_to): Pass line_table to
rich_location ctor.
* c-errors.c (pedwarn_c99): Likewise.
(pedwarn_c90): Likewise.
* c-parser.c (set_c_expr_source_range): New functions.
(c_token::get_range): New method.
(c_token::get_finish): New method.
(c_parser_expr_no_commas): Call set_c_expr_source_range on the ret
based on the range from the start of the LHS to the end of the
RHS.
(c_parser_conditional_expression): Likewise, based on the range
from the start of the cond.value to the end of exp2.value.
(c_parser_binary_expression): Call set_c_expr_source_range on
the stack values for TRUTH_ANDIF_EXPR and TRUTH_ORIF_EXPR.
(c_parser_cast_expression): Call set_c_expr_source_range on ret
based on the cast_loc through to the end of the expr.
(c_parser_unary_expression): Likewise, based on the
op_loc through to the end of op.
(c_parser_sizeof_expression) Likewise, based on the start of the
sizeof token through to either the closing paren or the end of
expr.
(c_parser_postfix_expression): Likewise, using the token range,
or from the open paren through to the close paren for
parenthesized expressions.
(c_parser_postfix_expression_after_primary): Likewise, for
various kinds of expression.
* c-tree.h (struct c_expr): Add field "src_range".
(c_expr::get_start): New method.
(c_expr::get_finish): New method.
(set_c_expr_source_range): New decls.
* c-typeck.c (parser_build_unary_op): Call set_c_expr_source_range
on ret for prefix unary ops.
(parser_build_binary_op): Likewise, running from the start of
arg1.value through to the end of arg2.value.
gcc/cp/ChangeLog:
* error.c (pedwarn_cxx98): Pass line_table to rich_location ctor.
gcc/fortran/ChangeLog:
* error.c (gfc_warning): Pass line_table to rich_location ctor.
(gfc_warning_now_at): Likewise.
(gfc_warning_now): Likewise.
(gfc_error_now): Likewise.
(gfc_fatal_error): Likewise.
(gfc_error): Likewise.
(gfc_internal_error): Likewise.
gcc/testsuite/ChangeLog:
* gcc.dg/diagnostic-token-ranges.c: New file.
* gcc.dg/diagnostic-tree-expr-ranges-2.c: New file.
* gcc.dg/plugin/diagnostic-test-expressions-1.c: New file.
* gcc.dg/plugin/diagnostic-test-show-trees-1.c: New file.
* gcc.dg/plugin/diagnostic_plugin_show_trees.c: New file.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (get_loc): Add
line_table param when calling
linemap_position_for_line_and_column.
(test_show_locus): Pass line_table to rich_location ctors.
(plugin_init): Remove setting of global_dc->colorize_source_p.
* gcc.dg/plugin/diagnostic_plugin_test_tree_expression_range.c:
New file.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add
diagnostic_plugin_test_tree_expression_range.c,
diagnostic-test-expressions-1.c, diagnostic_plugin_show_trees.c,
and diagnostic-test-show-trees-1.c.
libcpp/ChangeLog:
* errors.c (cpp_diagnostic): Pass pfile->line_table to
rich_location ctor.
(cpp_diagnostic_with_line): Likewise.
* include/cpplib.h (struct cpp_token): Update comment for src_loc
to indicate that the range of the token is "baked into" the
source_location.
* include/line-map.h (source_location): Update the descriptive
comment to reflect the packing scheme for short ranges, adding
worked examples of location encoding.
(struct line_map_ordinary): Drop field "column_bits" in favor
of field "m_column_and_range_bits"; add field "m_range_bits".
(ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): Delete.
(location_adhoc_data): Add source_range field.
(struct line_maps): Add fields "default_range_bits",
"num_optimized_ranges" and "num_unoptimized_ranges".
(get_combined_adhoc_loc): Add source_range param.
(get_range_from_loc): New declaration.
(pure_location_p): New prototype.
(COMBINE_LOCATION_DATA): Add source_range param.
(SOURCE_LINE): Update for renaming of column_bits.
(SOURCE_COLUMN): Likewise. Shift the column right by the map's
range_bits.
(LAST_SOURCE_LINE_LOCATION): Update for renaming of column_bits.
(linemap_position_for_line_and_column): Add line_maps * params.
(rich_location::rich_location): Likewise.
* lex.c (_cpp_lex_direct): Capture the range of the token, baking
it into token->src_loc via a call to COMBINE_LOCATION_DATA.
* line-map.c (LINE_MAP_MAX_COLUMN_NUMBER): Reduce from 1U << 17 to
1U << 12.
(location_adhoc_data_hash): Add the src_range into
the hash value.
(location_adhoc_data_eq): Require equality of the src_range
values.
(can_be_stored_compactly_p): New function.
(get_combined_adhoc_loc): Add src_range param, and store it,
via a bit-packing scheme for short ranges, otherwise within the
lookaside table. Remove the requirement that data is non-NULL.
(get_range_from_adhoc_loc): New function.
(get_range_from_loc): New function.
(pure_location_p): New function.
(linemap_add): Ensure that start_location has zero for the
range_bits, unless we're past LINE_MAP_MAX_LOCATION_WITH_COLS.
Initialize range_bits to zero. Assert that the start_location
is "pure".
(linemap_line_start): Assert that the
column_and_range_bits >= range_bits.
Update determinination of whether we need to start a new map
using the effective column bits, without the range bits.
Use the set's default_range_bits in new maps, apart from
those with column_bits == 0, which should also have 0 range_bits.
Increase the column bits for new maps by the range bits.
When adding lines to an existing map, use set->highest_line
directly rather than offsetting highest by SOURCE_COLUMN.
Add assertions to sanity-check the return value.
(linemap_position_for_column): Offset to_column by range_bits.
Update set->highest_location if necessary.
(linemap_position_for_line_and_column): Add line_maps * param.
Update the calculation to offset the column by range_bits, and
conditionalize it on being <= LINE_MAP_MAX_LOCATION_WITH_COLS.
Bound it by LINEMAPS_MACRO_LOWEST_LOCATION. Update
set->highest_location if necessary.
(linemap_position_for_loc_and_offset): Handle ad-hoc locations;
pass "set" to linemap_position_for_line_and_column.
(linemap_macro_map_loc_unwind_toward_spelling): Add line_maps
param. Handle ad-hoc locations.
(linemap_location_in_system_header_p): Pass on "set" to call to
linemap_macro_map_loc_unwind_toward_spelling.
(linemap_macro_loc_to_spelling_point): Retain ad-hoc locations.
Pass on "set" to call to
linemap_macro_map_loc_unwind_toward_spelling.
(linemap_resolve_location): Retain ad-hoc locations. Pass on
"set" to call to linemap_macro_map_loc_unwind_toward_spelling.
(linemap_unwind_toward_expansion): Pass on "set" to call to
linemap_macro_map_loc_unwind_toward_spelling.
(linemap_expand_location): Extract the data pointer before
extracting the location.
(rich_location::rich_location): Add line_maps param; use it to
extract the range from the source_location.
* location-example.txt: Regenerate, showing new representation.
From-SVN: r230331
gcc/ChangeLog:
* diagnostic-color.c (color_dict): Eliminate "caret"; add "range1"
and "range2".
(parse_gcc_colors): Update comment to describe default GCC_COLORS.
* diagnostic-core.h (warning_at_rich_loc): New declaration.
(error_at_rich_loc): New declaration.
(permerror_at_rich_loc): New declaration.
(inform_at_rich_loc): New declaration.
* diagnostic-show-locus.c (adjust_line): Delete.
(struct point_state): New struct.
(class colorizer): New class.
(class layout_point): New class.
(class layout_range): New class.
(struct line_bounds): New.
(class layout): New class.
(colorizer::colorizer): New ctor.
(colorizer::~colorizer): New dtor.
(layout::layout): New ctor.
(layout::print_source_line): New method.
(layout::print_annotation_line): New method.
(layout::get_state_at_point): New method.
(layout::get_x_bound_for_row): New method.
(diagnostic_show_locus): Reimplement in terms of class layout.
(diagnostic_print_caret_line): Delete.
* diagnostic.c (diagnostic_initialize): Replace
MAX_LOCATIONS_PER_MESSAGE with rich_location::MAX_RANGES.
(diagnostic_set_info_translated): Convert param from location_t
to rich_location *. Eliminate calls to set_location on the
message in favor of storing the rich_location ptr there.
(diagnostic_set_info): Convert param from location_t to
rich_location *.
(diagnostic_build_prefix): Break out array into...
(diagnostic_kind_color): New variable.
(diagnostic_get_color_for_kind): New function.
(diagnostic_report_diagnostic): Colorize the option_text
using the color for the severity.
(diagnostic_append_note): Update for change in signature of
diagnostic_set_info.
(diagnostic_append_note_at_rich_loc): New function.
(emit_diagnostic): Update for change in signature of
diagnostic_set_info.
(inform): Likewise.
(inform_at_rich_loc): New function.
(inform_n): Update for change in signature of diagnostic_set_info.
(warning): Likewise.
(warning_at): Likewise.
(warning_at_rich_loc): New function.
(warning_n): Update for change in signature of diagnostic_set_info.
(pedwarn): Likewise.
(permerror): Likewise.
(permerror_at_rich_loc): New function.
(error): Update for change in signature of diagnostic_set_info.
(error_n): Likewise.
(error_at): Likewise.
(error_at_rich_loc): New function.
(sorry): Update for change in signature of diagnostic_set_info.
(fatal_error): Likewise.
(internal_error): Likewise.
(internal_error_no_backtrace): Likewise.
(source_range::debug): New function.
* diagnostic.h (struct diagnostic_info): Eliminate field
"override_column". Add field "richloc".
(struct diagnostic_context): Add field "colorize_source_p".
(diagnostic_override_column): Delete.
(diagnostic_set_info): Convert param from location_t to
rich_location *.
(diagnostic_set_info_translated): Likewise.
(diagnostic_append_note_at_rich_loc): New function.
(diagnostic_num_locations): New function.
(diagnostic_expand_location): Get the location from the
rich_location.
(diagnostic_print_caret_line): Delete.
(diagnostic_get_color_for_kind): New declaration.
* genmatch.c (linemap_client_expand_location_to_spelling_point): New.
(error_cb): Update for change in signature of "error" callback.
(fatal_at): Likewise.
(warning_at): Likewise.
* input.c (linemap_client_expand_location_to_spelling_point): New.
* pretty-print.c (text_info::set_range): New method.
(text_info::get_location): New method.
* pretty-print.h (MAX_LOCATIONS_PER_MESSAGE): Eliminate this macro.
(struct text_info): Eliminate "locations" array in favor of
"m_richloc", a rich_location *.
(textinfo::set_location): Add a "caret_p" param, and reimplement
in terms of a call to set_range.
(textinfo::get_location): Eliminate inline implementation in favor of
an out-of-line reimplementation.
(textinfo::set_range): New method.
* rtl-error.c (diagnostic_for_asm): Update for change in signature
of diagnostic_set_info.
* tree-diagnostic.c (default_tree_printer): Update for new
"caret_p" param for textinfo::set_location.
* tree-pretty-print.c (percent_K_format): Likewise.
gcc/c-family/ChangeLog:
* c-common.c (c_cpp_error): Convert parameter from location_t to
rich_location *. Eliminate the "column_override" parameter and
the call to diagnostic_override_column.
Update the "done_lexing" clause to set range 0
on the rich_location, rather than overwriting a location_t.
* c-common.h (c_cpp_error): Convert parameter from location_t to
rich_location *. Eliminate the "column_override" parameter.
gcc/c/ChangeLog:
* c-decl.c (warn_defaults_to): Update for change in signature
of diagnostic_set_info.
* c-errors.c (pedwarn_c99): Likewise.
(pedwarn_c90): Likewise.
* c-objc-common.c (c_tree_printer): Update for new "caret_p" param
for textinfo::set_location.
gcc/cp/ChangeLog:
* error.c (cp_printer): Update for new "caret_p" param for
textinfo::set_location.
(pedwarn_cxx98): Update for change in signature of
diagnostic_set_info.
gcc/fortran/ChangeLog:
* cpp.c (cb_cpp_error): Convert parameter from location_t to
rich_location *. Eliminate the "column_override" parameter.
* error.c (gfc_warning): Update for change in signature of
diagnostic_set_info.
(gfc_format_decoder): Update handling of %C/%L for changes
to struct text_info.
(gfc_diagnostic_starter): Use richloc when determining whether to
print one locus or two. When handling a location that will
involve a call to diagnostic_show_locus, only attempt to print the
locus for the primary location, and don't call into
diagnostic_print_caret_line.
(gfc_warning_now_at): Update for change in signature of
diagnostic_set_info.
(gfc_warning_now): Likewise.
(gfc_error_now): Likewise.
(gfc_fatal_error): Likewise.
(gfc_error): Likewise.
(gfc_internal_error): Likewise.
gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic-test-show-locus-bw.c: New file.
* gcc.dg/plugin/diagnostic-test-show-locus-color.c: New file.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c: New file.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above.
* lib/gcc-dg.exp: Load multiline.exp.
libcpp/ChangeLog:
* errors.c (cpp_diagnostic): Update for change in signature
of "error" callback.
(cpp_diagnostic_with_line): Likewise, calling override_column
on the rich_location.
* include/cpplib.h (struct cpp_callbacks): Within "error"
callback, convert param from source_location to rich_location *,
and drop column_override param.
* include/line-map.h (struct source_range): New struct.
(struct location_range): New struct.
(class rich_location): New class.
(linemap_client_expand_location_to_spelling_point): New declaration.
* line-map.c (rich_location::rich_location): New ctors.
(rich_location::lazily_expand_location): New method.
(rich_location::override_column): New method.
(rich_location::add_range): New methods.
(rich_location::set_range): New method.
From-SVN: r229884
libcpp/ChangeLog:
* include/line-map.h (source_location): In the table in the
descriptive comment, show UNKNOWN_LOCATION, BUILTINS_LOCATION,
LINE_MAP_MAX_LOCATION_WITH_COLS, LINE_MAP_MAX_SOURCE_LOCATION.
Add notes about ad-hoc values.
From-SVN: r229673
linemap_position_for_loc_and_offset() tries to generate a location_t
encoding a column offset from the current location, for example, point
to a certain character inside a string. This is trivial to do when the
new location "fits within" the map of the original location. However,
it may happen that the (long) line corresponding to the original
location is encoded in several maps, thus the new location should
actually be encoded in a subsequent map from the original location.
This patch detects this case and adjusts the map correspondingly.
(This shows that the line-map representation is quite wasteful in this
case, because line-maps always start at column 0. That is, map[0]
highest location may encode up to line 8 column 80, then
map[1]->start_location starts encoding at line 8 column 0. Thus, there
are two location_t values that point to the same source location.)
libcpp/ChangeLog:
2015-09-21 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR c/66415
* line-map.c (linemap_position_for_loc_and_offset): Handle the
case of long lines encoded in multiple maps.
gcc/testsuite/ChangeLog:
2015-09-21 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR c/66415
* gcc.dg/cpp/pr66415-1.c: Test column number.
From-SVN: r227975
... which have been introduced in r223152, for example hundreds of:
[...]/gcc/input.h:37:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
libcpp/
* include/line-map.h (RESERVED_LOCATION_COUNT): Change type to
source_location.
From-SVN: r225558
PR c/66415
* c-format.c (location_from_offset): Return LOC if LINE is null.
* line-map.c (linemap_position_for_loc_and_offset): Remove
linemap_assert_fails; reverse conditions.
* gcc.dg/cpp/pr66415-1.c: New test.
* gcc.dg/cpp/pr66415-2.c: New test.
From-SVN: r224236
libcpp/ChangeLog:
2015-05-26 Manuel López-Ibáñez <manu@gcc.gnu.org>
* line-map.c (LINE_MAP_MAX_COLUMN_NUMBER
LINE_MAP_MAX_LOCATION_WITH_COLS,LINE_MAP_MAX_SOURCE_LOCATION):
New constants.
(linemap_line_start): Use them.
(linemap_position_for_column): Use them.
From-SVN: r223705
gcc/java/ChangeLog:
* jcf-parse.c (set_source_filename): Replace write through
ORDINARY_MAP_FILE_NAME with direct access to "to_file".
libcpp/ChangeLog:
* include/line-map.h (MAP_START_LOCATION): Eliminate the non-const
variant, and tweak comment for the const variant.
(ORDINARY_MAP_STARTING_LINE_NUMBER): Drop the non-const variant.
(ORDINARY_MAP_INCLUDER_FILE_INDEX): Likewise.
(ORDINARY_MAP_IN_SYSTEM_HEADER_P): Likewise.
(SET_ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): Delete.
(ORDINARY_MAP_FILE_NAME): Drop the non-const variant.
(MACRO_MAP_MACRO): Likewise.
(MACRO_MAP_NUM_MACRO_TOKENS): Likewise.
(MACRO_MAP_LOCATIONS): Likewise.
(MACRO_MAP_EXPANSION_POINT_LOCATION): Likewise.
* line-map.c (linemap_add): Replace writes through macros with
direct field accesses.
(linemap_enter_macro): Likewise.
(linemap_line_start): Likewise.
From-SVN: r223435
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
gcc/ChangeLog:
* common.opt (fdump-internal-locations): New option.
* input.c: Include diagnostic-core.h.
(get_end_location): New function.
(write_digit): New function.
(write_digit_row): New function.
(dump_location_range): New function.
(dump_labelled_location_range): New function.
(dump_location_info): New function.
* input.h (dump_location_info): New prototype.
* toplev.c (compile_file): Handle flag_dump_locations.
libcpp/ChangeLog:
* include/line-map.h (source_location): Add a reference to
location-example.txt to the descriptive comment.
* location-example.txt: New file.
From-SVN: r223163
libcpp/ChangeLog:
* include/line-map.h (linemap_assert): Move up within the file to
before all of the map accessor macros.
(linemap_assert_fails): Likewise.
(linemap_check_ordinary): Likewise.
(linemap_macro_expansion_map_p): Likewise.
From-SVN: r223121
gcc/ChangeLog:
* doc/invoke.texi (Warning Options): Add -Wmisleading-indentation.
(-Wmisleading-indentation): New option.
* Makefile.in (C_COMMON_OBJS): Add c-family/c-indentation.o.
gcc/c-family/ChangeLog:
* c-common.h (warn_for_misleading_indentation): New prototype.
* c-indentation.c: New file.
* c.opt (Wmisleading-indentation): New option.
gcc/c/ChangeLog:
* c-parser.c (c_parser_if_body): Add param "if_loc", use it
to add a call to warn_for_misleading_indentation.
(c_parser_else_body): Likewise, adding param "else_loc".
(c_parser_if_statement): Check for misleading indentation.
(c_parser_while_statement): Likewise.
(c_parser_for_statement): Likewise.
gcc/cp/ChangeLog:
* parser.c (cp_parser_selection_statement): Add location and
guard_kind arguments to calls to
cp_parser_implicitly_scoped_statement.
(cp_parser_iteration_statement): Likewise for calls to
cp_parser_already_scoped_statement.
(cp_parser_implicitly_scoped_statement): Add "guard_loc" and
"guard_kind" params; use them to warn for misleading
indentation.
(cp_parser_already_scoped_statement): Likewise.
gcc/testsuite/ChangeLog:
* c-c++-common/Wmisleading-indentation.c: New testcase.
* c-c++-common/Wmisleading-indentation-2.c: New testcase.
* c-c++-common/Wmisleading-indentation-2.md: New file.
libcpp/ChangeLog:
* directives.c (do_line): Set seen_line_directive on line_table.
(do_linemarker): Likewise.
* include/line-map.h (struct line_maps): Add new field
"seen_line_directive".
From-SVN: r223098
libcpp/ChangeLog:
* include/line-map.h: Fix comment at the top of the file.
(source_location): Rewrite and expand the comment for this
typedef, adding an ascii-art table to clarify how source_location
values are allocated.
* line-map.c: Fix comment at the top of the file.
From-SVN: r222806
2015-04-09 Richard Biener <rguenther@suse.de>
PR pch/65550
* files.c (pch_open_file): Allow main and pre-included files
when trying to open a PCH.
From-SVN: r221949
PR preprocessor/61977
* lex.c (cpp_peek_token): If peektok is CPP_EOF, back it up
with all tokens peeked by the current function.
* gcc.dg/cpp/pr61977.c: New test.
From-SVN: r221882
libcpp/
2015-03-16 Edward Smith-Rowland <3dw4rd@verizon.net>
PR c++/64626
* lex.c (lex_number): If a number ends with digit-seps (') skip back
and let lex_string take them.
gcc/testsuite/
2015-03-16 Edward Smith-Rowland <3dw4rd@verizon.net>
PR c++/64626
g++.dg/cpp1y/pr64626-1.C: New.
g++.dg/cpp1y/pr64626-2.C: New.
g++.dg/cpp1y/digit-sep-neg.C: Adjust errors and warnings.
From-SVN: r221470
Fix PR65261
Running bootstrap-ubsan on ppc64le shows many instances of:
libcpp/lex.c:552:30: runtime error: load of misaligned address
0x01001f31d37a for type 'const uchar', which requires 16 byte alignment
But the unaligned vector loads are intended in this case, because they
are preferable to forced-alignment on POWER8. So just silence the ubsan
errors.
2015-03-02 Markus Trippelsdorf <markus@trippelsdorf.de>
include/
PR target/65261
* ansidecl.h (ATTRIBUTE_NO_SANITIZE_UNDEFINED): New macro.
libcpp/
PR target/65261
* lex.c (search_line_fast): Silence ubsan errors.
From-SVN: r221190
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
DR#412
PR preprocessor/60570
* directives.c (do_elif): Don't evaluate #elif conditionals
when they don't need to be.
* gcc.dg/cpp/pr36320.c: Turn dg-error into dg-bogus.
* gcc.dg/cpp/pr60570.c: New test.
From-SVN: r220035
libcpp/ChangeLog:
2014-12-05 Manuel López-Ibáñez <manu@gcc.gnu.org>
* line-map.c (linemap_position_for_loc_and_offset): Add new
linemap_assert_fails.
gcc/fortran/ChangeLog:
2014-12-05 Manuel López-Ibáñez <manu@gcc.gnu.org>
* scanner.c (gfc_next_char_literal): Use gfc_warning_now.
(load_file): Use the line length as the column hint for
linemap_line_start. Reserve a location for the highest column of
the line.
From-SVN: r218407
libcpp:
2014-11-29 John Schmerge <jbschmerge@gmail.com>
PR preprocessor/41698
* charset.c (one_utf8_to_utf16): Do not produce surrogate pairs
for 0xffff.
gcc/testsuite:
2014-11-29 Joseph Myers <joseph@codesourcery.com>
PR preprocessor/41698
* gcc/testsuite/g++.dg/cpp/utf16-pr41698-1.C: New test.
From-SVN: r218179
PR preprocessor/60436
* line-map.c (linemap_line_start): If highest is above 0x60000000
and we are still tracking columns or highest is above 0x70000000,
force add_map.
From-SVN: r218042
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
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
As proposed at <https://gcc.gnu.org/ml/gcc/2014-11/msg00014.html>,
this patch enables -fextended-identifiers by default for all standard
versions including this feature (all C++ versions, C99 and above for
C, but not C90 / C94 / gnu89 / preprocessing assembler). It adds a
couple of tests for areas where I previously noted testsuite coverage
for extended identifiers was lacking, removes -fextended-identifiers
from existing tests, adds -g to various such tests to verify that
extended identifiers don't break debug info generation and removes the
test that was only there to verify that the feature was off by
default.
The current state of the feature may not correspond exactly to any
particular checklist from 2004/5 (see bug 9449) of what was wanted
before enabling the feature by default, but I don't think it's any
worse than plenty of other features supported by default before every
corner case is fully functional, and think problems can readily be
fixed incrementally.
The following aspects of extended identifiers could still do with more
work (and should be straightforward):
* C -aux-info (output should use UCNs).
* ObjC -gen-decls (output should use UCNs; associated diagnostics from
the ObjC front end should use extended characters or UCNs as
appropriate to the locale, via using %qE or identifier_to_locale).
* Use DW_AT_use_UTF8 in DWARF-3 debug info for compilation units built
with extended identifiers enabled (or unconditionally).
* cpplib diagnostics (outputting characters or UCNs as appropriate
depending on the locale, as done for identifiers in non-cpplib
diagnostics).
* C++ test for UCN linking with C and extern "C".
* Check GDB support / file issues for support if needed.
* Actual UTF-8 in identifiers (?). (Be careful about not affecting
performance for the normal fast path of lexing identifiers, if
possible.)
The following may be trickier:
* cpplib spelling preservation (required to diagnose macro
redefinition with different spellings of the same identifier in the
definition or argument names; different spellings of the name of the
macro itself are OK, however; also required for correct handling of
multiple stringizing in C++); correct output for -d (UCNs), DWARF
debug info for macros (UCNs), PCH and PCH tests. (Spelling
preservation is the issue that needs fixing to remove references to
corner cases in the documentation of -std=c99 and -std=c11 and in
c99status.html.) The idea would be to add a second pointer to
cpp_identifier that stores the original spelling (whether for
extended identifiers only, or for all identifiers); this does not
enlarge cpp_token because the resulting larger cpp_identifier
structure is no bigger than cpp_string.
* C++ translation of extended characters (including $@` and various
control characters) to UCNs in phase 1 (note diagnostics thus
needed, but not for C++11, for control characters in strings /
character constants as those UCNs invalid); a likely implementation
approach is to do translation when identifiers / strings / character
constants are lexed, together with errors for stray $@` / control
characters in program as not being valid UCNs in identifiers ($ only
if not accepted in identifiers); note that this translation should
not take place inside raw string literals.
Bootstrapped with no regressions on x86_64-unknown-linux-gnu.
libcpp:
PR preprocessor/9449
* init.c (lang_defaults): Enable extended identifiers for C++ and
C99-based standards.
gcc:
PR preprocessor/9449
* doc/cpp.texi (Character sets, Tokenization)
(Implementation-defined behavior): Don't refer to UCNs in
identifiers requiring -fextended-identifiers.
* doc/cppopts.texi (-fextended-identifiers): Document as enabled
by default for C99 and later and C++.
* doc/invoke.texi (-std=c99, -std=c11): Don't refer to extended
identifiers needing -fextended-identifiers.
gcc/testsuite:
PR preprocessor/9449
* lib/target-supports.exp (check_effective_target_ucn_nocache):
Don't use -fextended-identifiers.
* c-c++-common/cpp/normalize-3.c, c-c++-common/cpp/ucnid-2011-1.c,
g++.dg/cpp/ucn-1.C, g++.dg/cpp/ucnid-1.C, g++.dg/other/ucnid-1.C,
gcc.dg/cpp/normalize-1.c, gcc.dg/cpp/normalize-2.c,
gcc.dg/cpp/normalize-4.c: Don't use -fextended-identifiers.
* gcc.dg/cpp/ucnid-1.c: Don't use -fextended-identifiers. Use
-g3.
* gcc.dg/cpp/ucnid-10.c, gcc.dg/cpp/ucnid-2.c,
gcc.dg/cpp/ucnid-3.c, gcc.dg/cpp/ucnid-4.c, gcc.dg/cpp/ucnid-5.c,
gcc.dg/cpp/ucnid-7.c, gcc.dg/cpp/ucnid-9.c,
gcc.dg/cpp/warn-normalized-1.c, gcc.dg/cpp/warn-normalized-2.c,
gcc.dg/cpp/warn-normalized-3.c: Don't use -fextended-identifiers.
* gcc.dg/ucnid-1.c, gcc.dg/ucnid-2.c, gcc.dg/ucnid-3.c,
gcc.dg/ucnid-4.c, gcc.dg/ucnid-5.c, gcc.dg/ucnid-6.c: Don't use
-fextended-identifiers. Use -g.
* gcc.dg/ucnid-7.c, gcc.dg/ucnid-8.c: Don't use
-fextended-identifiers.
* gcc.dg/ucnid-9.c: Don't use -fextended-identifiers. Use -g.
* gcc.dg/ucnid-10.c: Don't use -fextended-identifiers.
* gcc.dg/ucnid-11.c, gcc.dg/ucnid-12.c: Don't use
-fextended-identifiers. Use -g.
* gcc.dg/ucnid-13.c: Don't use -fextended-identifiers.
* gcc.dg/cpp/ucnid-8.c: Remove test.
* gcc.dg/cpp/ucnid-10.c, gcc.dg/ucnid-14.c: New tests.
From-SVN: r217144
2014-10-03 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* lex.c (search_line_fast): Add new version to be used for Power8
and later targets when Altivec is enabled. Restrict the existing
Altivec version to big-endian systems so that lvsr is not used on
little endian, where it is deprecated. Remove LE-specific code
from the now-BE-only version.
From-SVN: r215873
2014-10-02 Bernd Edlinger <bernd.edlinger@hotmail.de>
Jeff Law <law@redhat.com>
* charset.c (convert_no_conversion): Reallocate memory with 25%
headroom.
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r215785
* charset.c (conversion): Rename to ...
(cpp_conversion): ... this one; update.
* files.c (file_hash_entry): Rename to ...
(cpp_file_hash_entry): ... this one ; update.
From-SVN: r215482
gcc/ChangeLog:
2014-09-04 Manuel López-Ibáñez <manu@gcc.gnu.org>
* doc/options.texi: Document that Var and Init are required if CPP
is given.
* optc-gen.awk: Require Var and Init if CPP is given.
* common.opt (Wpedantic): Use Init.
libcpp/ChangeLog:
2014-09-04 Manuel López-Ibáñez <manu@gcc.gnu.org>
* macro.c (replace_args): Use cpp_pedwarning, cpp_warning and
CPP_W flags.
* include/cpplib.h: Add CPP_W_C90_C99_COMPAT and CPP_W_PEDANTIC.
* init.c (cpp_create_reader): Do not init to -1 here.
* expr.c (num_binary_op): Use cpp_pedwarning.
gcc/c-family/ChangeLog:
2014-09-04 Manuel López-Ibáñez <manu@gcc.gnu.org>
* c.opt (Wc90-c99-compat,Wc++-compat,Wcomment,Wendif-labels,
Winvalid-pch,Wlong-long,Wmissing-include-dirs,Wmultichar,Wpedantic,
(Wdate-time,Wtraditional,Wundef,Wvariadic-macros): Add CPP, Var
and Init.
* c-opts.c (c_common_handle_option): Do not handle here.
(sanitize_cpp_opts): Likewise.
* c-common.c (struct reason_option_codes_t): Handle
CPP_W_C90_C99_COMPAT and CPP_W_PEDANTIC.
gcc/testsuite/ChangeLog:
2014-09-04 Manuel López-Ibáñez <manu@gcc.gnu.org>
* gcc.dg/cpp/endif-pedantic2.c: More general options do not
override specific ones, but specific ones do.
From-SVN: r214904
libcpp/ChangeLog:
2014-08-29 Manuel López-Ibáñez <manu@gcc.gnu.org>
* macro.c (warn_of_redefinition): Suppress warnings for builtins
that lack the NODE_WARN flag, unless Wbuiltin-macro-redefined.
(_cpp_create_definition): Use Wbuiltin-macro-redefined for
builtins that lack the NODE_WARN flag.
* directives.c (do_undef): Likewise.
* init.c (cpp_init_special_builtins): Do not change flags
depending on Wbuiltin-macro-redefined.
gcc/c-family/ChangeLog:
2014-08-29 Manuel López-Ibáñez <manu@gcc.gnu.org>
* c.opt (Wbuiltin-macro-redefined): Use CPP, Var and Init.
* c-opts.c (c_common_handle_option): Do not handle here.
From-SVN: r214730
libcpp/
2014-08-27 Edward Smith-Rowland <3dw4rd@verizon.net>
PR cpp/23827 - standard C++ should not have hex float preprocessor
tokens
* libcpp/init.c (lang_flags): Change CXX98 flag for extended numbers
from 1 to 0.
* libcpp/expr.c (cpp_classify_number): Weite error message for improper
use of hex floating literal.
gcc/testsuite/
2014-08-27 Edward Smith-Rowland <3dw4rd@verizon.net>
PR cpp/23827 - standard C++ should not have hex float preprocessor
tokens
* g++.dg/cpp/pr23827_cxx11.C: New.
* g++.dg/cpp/pr23827_cxx98.C: New.
* g++.dg/cpp/pr23827_cxx98_neg.C: New.
* gcc.dg/cpp/pr23827_c90.c: New.
* gcc.dg/cpp/pr23827_c90_neg.c: New.
* gcc.dg/cpp/pr23827_c99.c: New.
From-SVN: r214616
PR c/61861
* macro.c (builtin_macro): Add location parameter. Set
location of builtin macro to the expansion point.
(enter_macro_context): Pass location to builtin_macro.
* gcc.dg/pr61861.c: New test.
From-SVN: r213102
When a built-in macro is expanded, the location of the token in the
epansion list is the location of the expansion point of the built-in
macro.
This patch creates a virtual location for that token instead,
effectively tracking locations of tokens resulting from built-in macro
tokens.
libcpp/
* include/line-map.h (line_maps::builtin_location): New data
member.
(line_map_init): Add a new parameter to initialize the new
line_maps::builtin_location data member.
* line-map.c (linemap_init): Initialize the
line_maps::builtin_location data member.
* macro.c (builtin_macro): Create a macro map and track the token
resulting from the expansion of a built-in macro.
gcc/
* input.h (is_location_from_builtin_token): New function
declaration.
* input.c (is_location_from_builtin_token): New function
definition.
* toplev.c (general_init): Tell libcpp what the pre-defined
spelling location for built-in tokens is.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
From-SVN: r212637
2014-07-10 Edward Smith-Rowland <3dw4rd@verizon.net>
Jonathan Wakely <jwakely@redhat.com>
PR CPP/61389
* macro.c (_cpp_arguments_ok, parse_params, create_iso_definition):
Warning messages mention C++11 in c++ mode and C99 in c mode.
* lex.c (lex_identifier_intern, lex_identifier): Ditto
Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>
From-SVN: r212441
libcpp/
2014-07-09 Edward Smith-Rowland <3dw4rd@verizon.net>
PR c++/58155 - -Wliteral-suffix warns about tokens which are skipped
by preprocessor
* lex.c (lex_raw_string ()): Do not warn about invalid suffix
if skipping. (lex_string ()): Ditto.
gcc/testsuite/
2014-07-09 Edward Smith-Rowland <3dw4rd@verizon.net>
PR c++/58155 - -Wliteral-suffix warns about tokens which are skipped
g++.dg/cpp0x/pr58155.C: New.
From-SVN: r212392
PR c++/61038
I was asked to combine the escape logic for regular chars and strings
with the escape logic for user-defined literals chars and strings.
I just forgot the first time.
I forgot the ChangeLog!
From-SVN: r211267
PR c++/61038
I was asked to combine the escape logic for regular chars and strings
with the escape logic for user-defined literals chars and strings.
I just forgot the first time.
From-SVN: r211266
