f343165275
102 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
David Malcolm
|
85204e23e2 |
Less verbose fix-it hints for missing header files (PR 87091)
This patch tweaks maybe_add_include_fixit so that if we're emitting a note
about adding the header file, the note's primary location will be replaced
by that of the fix-it hint, to avoid repeating a location we've already
emitted (or one close to it).
For example, this simplifies:
../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:27: error: msg 1
87 | using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
| ^~~~~~
../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:22: note: msg 2
73 | # include <debug/vector>
+++ |+#include <vector>
74 | #endif
....
87 | using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
| ^~~
to:
../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:27: error: msg 1
87 | using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
| ^~~~~~
../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:74:1: note: msg 2
73 | # include <debug/vector>
+++ |+#include <vector>
74 | #endif
eliminating the repetition of line 87 in the note.
Doing so requires converting show_caret_p to a tri-state, to avoid
meaninglessly printing a caret for the first column in the next line
(and colorizing it):
../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:74:1: note: msg 2
73 | # include <debug/vector>
+++ |+#include <vector>
74 | #endif
| ^
gcc/c-family/ChangeLog:
PR 87091
* c-common.c (c_cpp_error): Update for conversion of show_caret_p
to a tri-state.
(maybe_suggest_missing_token_insertion): Likewise.
(maybe_add_include_fixit): Add param "override_location". If set,
and source-printing is enabled, then override the rich_location's
primary location with that of the insertion point for the fix-it
hint, marking it with SHOW_LINES_WITHOUT_RANGE.
* c-common.h (extern void maybe_add_include_fixit): Add bool
param.
* c-format.c (selftest::test_type_mismatch_range_labels): Update
for conversion of show_caret_p to a tri-state.
* c-warn.c (warn_for_restrict): Likewise.
* known-headers.cc
(suggest_missing_header::~suggest_missing_header): Update call to
maybe_add_include_fixit to suggest overriding the location, as it
is for a note.
gcc/c/ChangeLog:
PR 87091
* c-decl.c (implicitly_declare): Update call to
maybe_add_include_fixit to suggest overriding the location, as it
is for a note.
* c-objc-common.c (c_tree_printer): Update for conversion of
show_caret_p to a tri-state.
gcc/cp/ChangeLog:
PR 87091
* decl.c (grokdeclarator): Update for conversion of show_caret_p
to a tri-state.
* error.c (cp_printer): Likewise.
* name-lookup.c (maybe_suggest_missing_std_header): Update call to
maybe_add_include_fixit to suggest overriding the location, as it
is for a note.
* parser.c (cp_parser_string_literal): Update for conversion of
show_caret_p to a tri-state.
(cp_parser_elaborated_type_specifier): Likewise.
(set_and_check_decl_spec_loc): Likewise.
* pt.c (listify): Update call to maybe_add_include_fixit to not
override the location, as it is for an error.
* rtti.c (typeid_ok_p): Likewise.
gcc/ChangeLog:
PR 87091
* diagnostic-show-locus.c (class layout_range): Update for
conversion of show_caret_p to a tri-state.
(layout_range::layout_range): Likewise.
(make_range): Likewise.
(layout::maybe_add_location_range): Likewise.
(layout::should_print_annotation_line_p): Don't show annotation
lines for ranges that are SHOW_LINES_WITHOUT_RANGE.
(layout::get_state_at_point): Update for conversion of
show_caret_p to a tri-state. Bail out early for
SHOW_LINES_WITHOUT_RANGE, so that such ranges don't affect
underlining or source colorization.
(gcc_rich_location::add_location_if_nearby): Update for conversion
of show_caret_p to a tri-state.
(selftest::test_one_liner_multiple_carets_and_ranges): Likewise.
(selftest::test_one_liner_fixit_replace_equal_secondary_range):
Likewise.
(selftest::test_one_liner_labels): Likewise.
* gcc-rich-location.c (gcc_rich_location::add_expr): Update for
conversion of show_caret_p to a tri-state.
* pretty-print.c (text_info::set_location): Likewise.
* pretty-print.h (text_info::set_location): Likewise.
* substring-locations.c (format_warning_n_va): Likewise.
* tree-diagnostic.c (default_tree_printer): Likewise.
* tree-pretty-print.c (newline_and_indent): Likewise.
gcc/fortran/ChangeLog:
PR 87091
* error.c (gfc_format_decoder): Update for conversion of
show_caret_p to a tri-state.
gcc/testsuite/ChangeLog:
PR 87091
* gcc.dg/empty.h: New file.
* gcc.dg/fixits-pr84852-1.c: Update for move of fix-it hint to
top of file and removal of redundant second printing of warning
location.
* gcc.dg/fixits-pr84852-2.c: Likewise.
* gcc.dg/missing-header-fixit-3.c: Likewise.
* gcc.dg/missing-header-fixit-4.c: New test.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c: Update for
conversion of show_caret_p to a tri-state.
libcpp/ChangeLog:
PR 87091
* include/line-map.h (enum range_display_kind): New enum.
(struct location_range): Replace field "m_show_caret_p" with
"m_range_display_kind", converting from bool to the new enum.
(class rich_location): Add example of line insertion fix-it hint.
(rich_location::add_range): Convert param "show_caret_p" from bool
to enum range_display_kind and rename to "range_display_kind",
giving it a default of SHOW_RANGE_WITHOUT_CARET.
(rich_location::set_range): Likewise, albeit without a default.
* line-map.c (rich_location::rich_location): Update for conversion
of show_caret_p to tri-state enum.
(rich_location::add_range): Likewise.
(rich_location::set_range): Likewise.
From-SVN: r263885
|
||
|
H.J. Lu
|
cf806c7dc3 |
Set start_location to 0 if we ran out of line map space
With profiledbootstrap and --with-build-config=bootstrap-lto, linemap_add may create a macro map when we run out of line map space. This patch changes start_location to UNKNOWN_LOCATION (0) in this case. Tested with profiledbootstrap and --with-build-config=bootstrap-lto on Linux/x86-64. PR bootstrap/86872 * line-map.c (pure_location_p): Return true if linemap_lookup returns NULL. (linemap_add): Set start_location to 0 if we run out of line map space. From-SVN: r263845 |
||
|
David Malcolm
|
96e6ae576c |
diagnostics: add labeling of source ranges
This patch adds the ability to label source ranges within a rich_location,
to be printed by diagnostic_show_locus.
For example:
pr69554-1.c:11:18: error: invalid operands to binary + (have 'const char *' and 'const char *')
11 | return (p + 1) + (q + 1);
| ~~~~~~~ ^ ~~~~~~~
| | |
| | const char *
| const char *
The patch implements labels for various type mismatch errors in the C and
C++ frontends, and in -Wformat. I implemented it wherever accurate location
information was guaranteed (there are other places that could benefit, but
we need better location information in those places).
The labels can be disabled via -fno-diagnostics-show-labels.
Similarly:
param-type-mismatch.C: In function 'int test_1(int, int, float)':
param-type-mismatch.C:11:27: error: invalid conversion from 'int' to 'const char*' [-fpermissive]
11 | return callee_1 (first, second, third);
| ^~~~~~
| |
| int
param-type-mismatch.C:7:43: note: initializing argument 2 of 'int callee_1(int, const char*, float)'
7 | extern int callee_1 (int one, const char *two, float three);
| ~~~~~~~~~~~~^~~
where the first "error" describing the bad argument gets a label
describing the type inline (since it's non-obvious from "second").
The "note" describing the type of the param of the callee *doesn't*
get a label, since that information is explicit there in the
source ("const char *two").
The idea is that in any diagnostic where two aspects of the source aren't
in sync it ought to be easier for the user if we directly show them the
mismatching aspects inline (e.g. types).
As well as type mismatch errors, perhaps labels could also be used for
buffer overflow warnings, for describing the capacity of the destination
buffer vs the size of what's being written:
sprintf (buf, "filename: %s\n", file);
^~~ ~~~~~~~~~~~^~~
| |
capacity: 32 10 + strlen(file) + 2
or somesuch. Another idea might be for macro expansion warnings:
warning: repeated side effects in macro expansion...
x = MIN (p++, q++);
~~~~^~~~~~~~~~
note: ...expanded here as
#define MIN(X,Y) (X<Y?X:Y)
^~~ ~ ~ ~ ~ ~ ~
| | | | | |
| | | | | q++
| | | | p++
| | | q++
| q++ p++
p++
The patch removes some logic from multiline.exp which special-cased
lines ending with a '|' character (thus complicating testing of this
patch). I believe that this was a vestige from experiments I did to
support strippng dg directives from the output; it was present in the
earliest version of multiline.exp I posted:
"[RFC, stage1] Richer source location information for gcc 6 (location ranges etc)"
https://gcc.gnu.org/ml/gcc-patches/2015-03/msg00837.html
and I believe was neved used.
gcc/c-family/ChangeLog:
* c-format.c: Include "selftest-diagnostic.h" and
"gcc-rich-location.h".
(format_warning_at_char): Pass NULL for new label params of
format_warning_va.
(class indirection_suffix): New class.
(class range_label_for_format_type_mismatch): New class.
(format_type_warning): Move logic for generating "*" suffix to
class indirection_suffix. Create "fmt_label" and "param_label"
to show their types, and pass them to the
format_warning_at_substring calls.
(selftest::test_type_mismatch_range_labels): New test.
(selftest::c_format_c_tests): Call it.
gcc/c/ChangeLog:
* c-objc-common.c: Include "gcc-rich-location.h".
(c_tree_printer): Move implemenation of '%T' to...
(print_type): ...this new function.
(range_label_for_type_mismatch::get_text): New function.
* c-typeck.c (convert_for_assignment): Add type labels to the rhs
range for the various ic_argpass cases.
(class maybe_range_label_for_tree_type_mismatch): New class.
(build_binary_op): Use it when calling binary_op_error.
gcc/cp/ChangeLog:
* call.c: Include "gcc-rich-location.h".
(convert_like_real): Add range label for "invalid conversion"
diagnostic.
(perform_implicit_conversion_flags): Add type label to the
"could not convert" error.
* error.c: Include "gcc-rich-location.h".
(range_label_for_type_mismatch::get_text): New function.
* typeck.c (convert_for_assignment): Add type label to
the "cannot convert" error if a location is available.
gcc/ChangeLog:
* common.opt (fdiagnostics-show-labels): New option.
* diagnostic-show-locus.c (class layout_range): Add field
"m_label".
(class layout): Add field "m_show_labels_p".
(layout_range::layout_range): Add param "label" and use it to
initialize m_label.
(make_range): Pass in NULL for new "label" param of layout_range's
ctor.
(layout::layout): Initialize m_show_labels_p.
(layout::maybe_add_location_range): Pass in loc_range->m_label
when constructing layout_range instances.
(struct line_label): New struct.
(layout::print_any_labels): New member function.
(layout::print_line): Call it if label-printing is enabled.
(selftest::test_one_liner_labels): New test.
(selftest::test_diagnostic_show_locus_one_liner): Call it.
* diagnostic.c (diagnostic_initialize): Initialize
context->show_labels_p.
* diagnostic.h (struct diagnostic_context): Add field
"show_labels_p".
* doc/invoke.texi (Diagnostic Message Formatting Options): Add
-fno-diagnostics-show-labels.
* dwarf2out.c (gen_producer_string): Add
OPT_fdiagnostics_show_labels to the ignored options.
* gcc-rich-location.c (gcc_rich_location::add_expr): Add "label"
param.
(gcc_rich_location::maybe_add_expr): Likewise.
* gcc-rich-location.h (gcc_rich_location::gcc_rich_location): Add
label" param, defaulting to NULL.
(gcc_rich_location::add_expr): Add "label" param.
(gcc_rich_location::maybe_add_expr): Likewise.
(class text_range_label): New class.
(class range_label_for_type_mismatch): New class.
* gimple-ssa-sprintf.c (fmtwarn): Pass NULL for new label params
of format_warning_va.
(fmtwarn_n): Likewise for new params of format_warning_n_va.
* lto-wrapper.c (merge_and_complain): Add
OPT_fdiagnostics_show_labels to the "pick one setting" options.
(append_compiler_options): Likewise to the dropped options.
(append_diag_options): Likewise to the passed-on options.
* opts.c (common_handle_option): Handle the new option.
* selftest-diagnostic.c
(test_diagnostic_context::test_diagnostic_context): Enable
show_labels_p.
* substring-locations.c: Include "gcc-rich-location.h".
(format_warning_n_va): Add "fmt_label" and "param_label" params
and use them as appropriate.
(format_warning_va): Add "fmt_label" and "param_label" params,
passing them on to format_warning_n_va.
(format_warning_at_substring): Likewise.
(format_warning_at_substring_n): Likewise.
* substring-locations.h (format_warning_va): Add "fmt_label" and
"param_label" params.
(format_warning_n_va): Likewise.
(format_warning_at_substring): Likewise.
(format_warning_at_substring_n): Likewise.
* toplev.c (general_init): Initialize global_dc->show_labels_p.
gcc/testsuite/ChangeLog:
* g++.dg/diagnostic/aka3.C: New test.
* g++.dg/diagnostic/param-type-mismatch-2.C: Update expected
output to show range labels.
* g++.dg/diagnostic/param-type-mismatch.C: Likewise.
* g++.dg/plugin/plugin.exp (plugin_test_list): Add...
* g++.dg/plugin/show-template-tree-color-labels.C: New test.
* gcc.dg/bad-binary-ops.c: Update expected output to show range
labels. Add an "aka" example.
* gcc.dg/cpp/pr66415-1.c: Update expected output to show range
labels.
* gcc.dg/format/diagnostic-ranges.c: Likewise.
* gcc.dg/format/pr72858.c: Likewise.
* gcc.dg/format/pr78498.c: Likewise.
* gcc.dg/param-type-mismatch.c: Add "-Wpointer-sign" to options.
Update expected output to show range labels. Add examples of
-Wincompatible-pointer-types and -Wpointer-sign for parameters.
* gcc.dg/plugin/diagnostic-test-show-locus-bw-line-numbers.c:
Update expected output to show range labels.
* gcc.dg/plugin/diagnostic-test-show-locus-bw.c: Likewise.
(test_very_wide_line): Adjust so that label is at left-clipping
boundary.
(test_very_wide_line_2): New test.
* gcc.dg/plugin/diagnostic-test-show-locus-color-line-numbers.c:
Update expected output to show range labels.
* gcc.dg/plugin/diagnostic-test-show-locus-color.c: Likewise.
* gcc.dg/plugin/diagnostic-test-show-locus-no-labels.c: New test.
* gcc.dg/plugin/diagnostic_plugin_show_trees.c (show_tree): Update
for new param to gcc_rich_location::add_expr.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (add_range):
Add "label" param.
(test_show_locus): Add examples of labels to various tests. Tweak
the "very wide_line" test case and duplicate it, to cover the
boundary values for clipping of labels against the left-margin.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add
diagnostic-test-show-locus-no-labels.c.
* gcc.dg/pr69554-1.c: Update expected output to show range labels.
Update line numbers of dg-locus directives.
* gcc.dg/pr69627.c: Update expected output to show range labels.
* lib/multiline.exp (proc _build_multiline_regex): Remove
special-case handling of lines with trailing '|'.
libcpp/ChangeLog:
* include/line-map.h (struct location_range): Add "m_label" field.
(class rich_location): Add description of labels to leading
comment.
(rich_location::rich_location): Add "label" param, defaulting to
NULL.
(rich_location::add_range): Likewise.
(struct label_text): New struct.
(class range_label): New abstract base class.
* line-map.c (rich_location::rich_location): Add "label" param;
use it.
(rich_location::add_range): Likewise.
From-SVN: r263564
|
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Nathan Sidwell
|
f10a91352f |
[PATCH] line-map include-from representation
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg00554.html Make linemap::included_from a location libcpp/ * include/line-map.h (struct line_map_ordinary): Replace included_from map index with included_at source_location. (ORDINARY_MAP_INCLUDER_FILE_INDEX): Delete. (LAST_SOURCE_LINE_LOCATION): Delete. (LAST_SOURCE_LINE, LAST_SOURCE_COLUMN): Delete. (linemap_included_from): New. (linemap_included_from_linemap): Declare. (MAIN_FILE_P): Adjust. * line-map.c (linemap_included_from_linemap): New. (lonemap_check_files_exited): Use linemap_included_at. (linemap_add): Adjust inclusion setting. (linemap_dump, linemap_dump_location): Adjust. * directives.c (do_linemarker): Use linemap_included_at. gcc/ * diagnostic.c (diagnostic_report_current_module): Use linemap_included_from & linemap_included_from_linemap. gcc/c-family/ * c-common.c (try_to_locate_new_include_inertion_point): Use linemap_included_from_linemap. * c-lex.c (fe_file_change): Use linemap_included_from. * c-ppoutput.c (pp_file_change): Likewise. gcc/fortran/ * cpp.c (cb_file_change): Use linemap_included_from. gcc/testsuite/ * c-c++-common/inc-from-1a.h, c-c++-common/inc-from-1b.h, c-c++-common/inc-from-1.c: New From-SVN: r263429 |
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Nathan Sidwell
|
e81c3c4dc1 |
[PATCH] Line map table allocation
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg00434.html * line-map.c: (linemap_init): Set default allocator here. (new_linemap): Rather than here. Refactor allocation logic. From-SVN: r263366 |
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David Malcolm
|
181463c271 |
libcpp: remove redundant parameter from rich_location::set_range
gcc/c-family/ChangeLog: * c-common.c (c_cpp_error): Remove redundant "line_table" parameter from call to rich_location::set_range. (maybe_suggest_missing_token_insertion): Likewise. gcc/ChangeLog: * pretty-print.c (text_info::set_location): Remove redundant "line_table" parameter from call to rich_location::set_range. libcpp/ChangeLog: * include/line-map.h (rich_location::set_range): Remove redundant line_maps * parameter. * line-map.c (rich_location::set_range): Likewise. From-SVN: r262913 |
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Nathan Sidwell
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42a98b43bb |
Reorg line_map data structures for better packing.
* include/line-map.h (enum lc_reason): Add LC_HWM. (LINE_MAP_MAX_LOCATION): Define here. (struct line_map): Move reason field to line_map_ordinary. Adjust GTY tagging. (struct line_map_ordinary): Reorder fields for less padding. (struct line_map_macro): Likewise. (MAP_ORDINARY_P): New. (linemap_check_ordinary, linemap_check_macro): Adjust. * line-map.c (LINE_MAP_MAX_SOURCE_LOCATION): Delete. (new_linemap): Take start_location, not reason. Adjust. (linemap_add, linemap_enter_macro): Adjust. (linemap_line_start): Likewise. (linemap_macro_expansion_map_p): Use MAP_ORDINARY_P. (linemap_macro_loc_to_spelling_point): Likewise. (linemap_macro_loc_to_def_point): Likewise. (linemap_dump): Likewise. From-SVN: r262348 |
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Jason Merrill
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b2ff74575d |
line-map.c (linemap_init): Use placement new.
* line-map.c (linemap_init): Use placement new. * system.h: #include <new>. From-SVN: r260343 |
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Richard Biener
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fe74f9b4ed |
re PR bootstrap/82939 (genmatch fills up terminal with endless printing of periods)
2018-02-16 Richard Biener <rguenther@suse.de> PR bootstrap/82939 * line-map.c (linemap_init): Avoid broken value-init when compiling with GCC 4.2. From-SVN: r257732 |
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Jakub Jelinek
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85ec4feb11 |
Update copyright years.
From-SVN: r256169 |
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David Malcolm
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6df8934f6a |
Reject fix-it hints for various awkward boundary cases (PR c/82050)
PR c/82050 reports a failed assertion deep within diagnostic_show_locus's code for printing fix-it hints. The root cause is a fix-it hint suggesting a textual replacement, where the affected column numbers straddle the LINE_MAP_MAX_COLUMN_NUMBER boundary, so that the start of the range has a column number, but the end of the range doesn't. The fix is to verify that the column numbers are sane when adding fix-it hints to a rich_location, rejecting fix-it hints where they are not. libcpp/ChangeLog: PR c/82050 * include/line-map.h (LINE_MAP_MAX_COLUMN_NUMBER): Move here. * line-map.c (LINE_MAP_MAX_COLUMN_NUMBER): ...from here. (rich_location::maybe_add_fixit): Reject fix-it hints in which the start column exceeds the next column. From-SVN: r255214 |
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David Malcolm
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738f7c2e12 |
libcpp: preserve ranges within macro expansions (PR c++/79300)
gcc/testsuite/ChangeLog: PR c++/79300 * g++.dg/diagnostic/pr79300.C: New test case. libcpp/ChangeLog: PR c++/79300 * line-map.c (linemap_macro_loc_to_def_point): Preserve range information for macro expansions by delaying resolving ad-hoc locations until within the loop. From-SVN: r250058 |
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David Malcolm
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c471c6edcb |
diagnostics: fix end-points of ranges within macros (PR c++/79300)
gcc/ChangeLog: PR c++/79300 * diagnostic-show-locus.c (layout::layout): Use start and finish spelling location for the start and finish of each range. * genmatch.c (linemap_client_expand_location_to_spelling_point): Add unused aspect param. * input.c (expand_location_1): Add "aspect" param, and use it to access the correct part of the location. (expand_location): Pass LOCATION_ASPECT_CARET to new param of expand_location_1. (expand_location_to_spelling_point): Likewise. (linemap_client_expand_location_to_spelling_point): Add "aspect" param, and pass it to expand_location_1. gcc/testsuite/ChangeLog: PR c++/79300 * c-c++-common/Wmisleading-indentation-3.c (fn_14): Update expected underlining within macro expansion. * c-c++-common/pr70264.c: Likewise. * g++.dg/plugin/diagnostic-test-expressions-1.C (test_within_macro_1): New test. (test_within_macro_2): Likewise. (test_within_macro_3): Likewise. (test_within_macro_4): Likewise. * gcc.dg/format/diagnostic-ranges.c (test_macro_3): Update expected underlining within macro expansion. (test_macro_4): Likewise. * gcc.dg/plugin/diagnostic-test-expressions-1.c (test_within_macro_1): New test. (test_within_macro_2): Likewise. (test_within_macro_3): Likewise. (test_within_macro_4): Likewise. * gcc.dg/spellcheck-fields-2.c (test_macro): Update expected underlining within macro expansion. libcpp/ChangeLog: PR c++/79300 * include/line-map.h (enum location_aspect): New enum. (linemap_client_expand_location_to_spelling_point): Add enum location_aspect param. * line-map.c (rich_location::get_expanded_location): Update for new param of linemap_client_expand_location_to_spelling_point. (rich_location::maybe_add_fixit): Likewise. (fixit_hint::affects_line_p): Likewise. From-SVN: r250022 |
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Jakub Jelinek
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6d52273137 |
line-map.c (location_adhoc_data_update): Perform addition in uintptr_t type rather than char * type.
* line-map.c (location_adhoc_data_update): Perform addition in uintptr_t type rather than char * type. Read *data using ptrdiff_t type instead of int64_t. (get_combined_adhoc_loc): Change offset type to ptrdiff_t from int64_t. From-SVN: r249446 |
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David Malcolm
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c7a980b80b |
Prevent fix-it hints from affecting more than one line
Attempts to apply a removal or replacement fix-it hint to a source range that covers multiple lines currently lead to nonsensical results from the printing code in diagnostic-show-locus.c. We were already filtering them out in edit-context.c (leading to -fdiagnostics-generate-patch not generating any output for the whole TU). Reject attempts to add such fix-it hints within rich_location, fixing the diagnostic-show-locus.c issue. gcc/ChangeLog: * diagnostic-show-locus.c (selftest::test_fixit_deletion_affecting_newline): New function. (selftest::diagnostic_show_locus_c_tests): Call it. libcpp/ChangeLog: * include/line-map.h (class rich_location): Document that attempts to delete or replace a range *affecting* multiple lines will fail. * line-map.c (rich_location::maybe_add_fixit): Implement this restriction. From-SVN: r249403 |
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Martin Sebor
|
c3684b7b86 |
PR c++/80560 - warn on undefined memory operations involving non-trivial types
gcc/c-family/ChangeLog: PR c++/80560 * c.opt (-Wclass-memaccess): New option. gcc/cp/ChangeLog: PR c++/80560 * call.c (first_non_public_field, maybe_warn_class_memaccess): New functions. (has_trivial_copy_assign_p, has_trivial_copy_p): Ditto. (build_cxx_call): Call maybe_warn_class_memaccess. gcc/ChangeLog: PR c++/80560 * dumpfile.c (dump_register): Avoid calling memset to initialize a class with a default ctor. * gcc.c (struct compiler): Remove const qualification. * genattrtab.c (gen_insn_reserv): Replace memset with initialization. * hash-table.h: Ditto. * ipa-cp.c (allocate_and_init_ipcp_value): Replace memset with assignment. * ipa-prop.c (ipa_free_edge_args_substructures): Ditto. * omp-low.c (lower_omp_ordered_clauses): Replace memset with default ctor. * params.h (struct param_info): Make struct members non-const. * tree-switch-conversion.c (emit_case_bit_tests): Replace memset with default initialization. * vec.h (vec_copy_construct, vec_default_construct): New helper functions. (vec<T>::copy, vec<T>::splice, vec<T>::reserve): Replace memcpy with vec_copy_construct. (vect<T>::quick_grow_cleared): Replace memset with default ctor. (vect<T>::vec_safe_grow_cleared, vec_safe_grow_cleared): Same. * doc/invoke.texi (-Wclass-memaccess): Document. libcpp/ChangeLog: PR c++/80560 * line-map.c (line_maps::~line_maps): Avoid calling htab_delete with a null pointer. (linemap_init): Avoid calling memset on an object of a non-trivial type. libitm/ChangeLog: PR c++/80560 * beginend.cc (GTM::gtm_thread::rollback): Avoid calling memset on an object of a non-trivial type. (GTM::gtm_transaction_cp::commit): Use assignment instead of memcpy to copy an object. * method-ml.cc (orec_iterator::reinit): Avoid -Wclass-memaccess. gcc/testsuite/ChangeLog: PR c++/80560 * g++.dg/Wclass-memaccess.C: New test. From-SVN: r249234 |
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|
David Malcolm
|
b09649fdc6 |
Add support for mutually-incompatible fix-it hints
This patch adds a method: rich_location::fixits_cannot_be_auto_applied for ensuring that mutually-incompatible fix-its hints don't lead to insane output from -fdiagnostics-generate-patch. Fix-it hints within such rich_location instances are printed as normal by diagnostic_show_locus, but don't affect the output of -fdiagnostics-generate-patch. gcc/ChangeLog: * diagnostic.c (diagnostic_report_diagnostic): Only add fixits to the edit_context if they can be auto-applied. gcc/testsuite/ChangeLog: * gcc.dg/plugin/diagnostic-test-show-locus-bw.c (test_mutually_exclusive_suggestions): New test function. * gcc.dg/plugin/diagnostic-test-show-locus-generate-patch.c (test_mutually_exclusive_suggestions): New test function. * gcc.dg/plugin/diagnostic-test-show-locus-parseable-fixits.c (test_mutually_exclusive_suggestions): New test function. * gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (test_show_locus): Add special-case for "test_mutually_exclusive_suggestions". libcpp/ChangeLog: * include/line-map.h (rich_location::fixits_cannot_be_auto_applied): New method. (rich_location::fixits_can_be_auto_applied_p): New accessor. (rich_location::m_fixits_cannot_be_auto_applied): New field. * line-map.c (rich_location::rich_location): Initialize new field. From-SVN: r249081 |
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|
David Malcolm
|
ad53f12355 |
Support fix-it hints that add new lines
Previously fix-it hints couldn't contain newlines. This is
due to the need to print something user-readable for them
within diagnostic-show-locus, and for handling them within
edit-context for printing diffs and regenerating content.
This patch enables limited support for fix-it hints with newlines,
for suggesting adding new lines.
Such a fix-it hint must have exactly one newline character, at the
end of the content. It must be an insertion at the beginning of
a line (so that e.g. fix-its that split a pre-existing line are
still rejected).
They are printed by diagnostic-show-locus with a '+' in the
left-hand margin, like this:
test.c:42:4: note: suggest adding 'break;' here
+ break;
case 'b':
^~~~~~~~~
and the printer injects "spans" if the insertion location is not
near the primary range of the diagnostic e.g.:
test.c:4:2: note: unrecognized 'putchar'; suggest including '<stdio.h>'
test.c:1:1:
+#include <stdio.h>
test.c:4:2:
putchar (ch);
^~~~~~~
gcc/ChangeLog:
* diagnostic-show-locus.c
(layout::should_print_annotation_line_p): Make private.
(layout::print_annotation_line): Make private.
(layout::annotation_line_showed_range_p): Make private.
(layout::show_ruler): Make private.
(layout::print_source_line): Make private. Pass in line and
line_width, rather than calling location_get_source_line. Drop
returned value.
(layout::print_leading_fixits): New method.
(layout::print_any_fixits): Rename to...
(layout::print_trailing_fixits): ...this, and make private.
Don't print newline fixits.
(diagnostic_show_locus): Move logic for printing one row into...
(layout::print_line): ...this new function. Move the
location_get_source_line call and error-handling from
print_source_line to here. Call print_leading_fixits, and rename
print_any_fixits to print_trailing_fixits.
(selftest::test_fixit_insert_containing_newline): Update now that
newlines are partially supported.
(selftest::test_fixit_insert_containing_newline_2): New test.
(selftest::test_fixit_replace_containing_newline): Update comments.
(selftest::diagnostic_show_locus_c_tests): Call the new test.
* edit-context.c (class added_line): New class.
(class edited_line): Describe newline handling in comment.
(edited_line::actually_edited_p): New method.
(edited_line::print_content): Delete redundant decl.
(edited_line::m_predecessors): New field.
(edited_file::print_content): Call edited_line::print_content.
(edited_file::print_diff): Update to support newlines.
(edited_file::print_diff_hunk): Likewise.
(edited_file::print_run_of_changed_lines): New function.
(edited_file::print_diff_line): Convert to...
(print_diff_line): ...this.
(edited_file::get_effective_line_count): New function.
(edited_line::edited_line): Initialize new field m_predecessors.
(edited_line::~edited_line): Clean up m_predecessors.
(edited_line::apply_fixit): Handle newlines.
(edited_line::get_effective_line_count): New function.
(edited_line::print_content): New function.
(edited_line::print_diff_lines): New function.
(selftest::test_applying_fixits_insert_containing_newline): New
test.
(selftest::test_applying_fixits_replace_containing_newline): New
test.
(selftest::insert_line): New function.
(selftest::test_applying_fixits_multiple_lines): Add example of
inserting a line.
(selftest::edit_context_c_tests): Call the new tests.
gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic-test-show-locus-bw.c
(test_fixit_insert_newline): New function.
* gcc.dg/plugin/diagnostic-test-show-locus-color.c
(test_fixit_insert_newline): New function.
* gcc.dg/plugin/diagnostic-test-show-locus-generate-patch.c
(test_fixit_insert_newline): New function.
* gcc.dg/plugin/diagnostic-test-show-locus-parseable-fixits.c
(test_fixit_insert_newline): New function.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
(test_show_locus): Handle test_fixit_insert_newline.
libcpp/ChangeLog:
* include/line-map.h (class rich_location): Update description of
newline handling.
(class fixit_hint): Likewise.
(fixit_hint::ends_with_newline_p): New decl.
* line-map.c (rich_location::maybe_add_fixit): Support newlines
in fix-it hints that are insertions of single lines at the start
of a line. Don't consolidate into such fix-it hints.
(fixit_hint::ends_with_newline_p): New method.
From-SVN: r247522
|
||
|
David Malcolm
|
338035aa19 |
Eliminate fixit_hint class hierarchy
The original implementation of fix-it hints (r230674) had an abstract base class "fixit_hint" and three subclasses, representing each of insertions, replacements, and deletions. Having multiple classes for fix-it hints was a nuisance, as it required per-class logic everywhere that the hints were handled. In r239632 I eliminated the deletion subclass in favor of replacement with the empty string (two subclasses are easier than three). This patch eliminates the class hierarchy altogether by implementing insertion in terms of replacement, by representing replacements via a half-open interval (so that for an insertion, start == next location, and we're effectively replacing an empty range at the insertion point with the new string). This greatly simplifies the code for handling fix-it hints; for example it allows removal of a parallel class hierarchy of line_event within edit-context.c. It also improves consolidation of hints: we can now consolidate insertions at the same location, affecting a couple of tests (selftest::test_one_liner_many_fixits and gcc.dg/Wmissing-braces-fixits.c). gcc/ChangeLog: * diagnostic-show-locus.c (layout::get_expanded_location): Rewrite to use new fixit_hint representation, using the "replace" logic. (get_line_span_for_fixit_hint): Likewise. (layout::print_any_fixits): Likewise. (selftest::test_one_liner_many_fixits): Rename to... (selftest::test_one_liner_many_fixits_1): ...this, and update comment and expected output to reflect that the multiple fix-it hints are now consolidated into one insertion. (selftest::test_one_liner_many_fixits_2): New test. (selftest::test_diagnostic_show_locus_one_liner): Update for above. (selftest::test_fixit_consolidation): Update for fix-it API change. * diagnostic.c (print_parseable_fixits): Likewise. * edit-context.c (edited_line::m_line_events): Convert from auto_vec <line_event *> to auto_vec <line_event>. (class line_event): Convert from abstract base class to a concrete class, taking over the role of replace_event. (class insert_event): Delete. (class replace_event): Rename to class line_event. Convert to half-open range. (edit_context::add_fixits): Reimplement. (edit_context::apply_insert): Delete. (edit_context::apply_replace): Rename to... (edit_context::apply_fixit): ...this. Convert to half-open range. (edited_file::apply_insert): Delete. (edited_file::apply_replace): Rename to... (edited_file::apply_fixit): ...this. (edited_line::~edited_line): Drop deletion of events. (edited_line::apply_insert): Delete. (edited_line::apply_replace): Rename to... (edited_line::apply_fixit): ...this. Convert to half-open range. Update for change to type of m_line_events. * edit-context.h (edit_context::apply_insert): Delete. (edit_context::apply_replace): Rename to... (edit_context::apply_fixit): ...this. gcc/testsuite/ChangeLog: * gcc.dg/Wmissing-braces-fixits.c: Update expected output to reflect insertion fix-it hints at the same location now being consolidated. libcpp/ChangeLog: * include/line-map.h (source_range::intersects_line_p): Delete. (rich_location::add_fixit): Delete. (rich_location::maybe_add_fixit): New method. (class fixit_hint): Reimplement in terms of... (class fixit_replace): ...this. (class fixit_insert): Delete. * line-map.c (linemap_position_for_loc_and_offset): Drop overzealous linemap_assert_fails. (source_range::intersects_line_p): Rename to... (fixit_hint::affects_line_p): New function. (rich_location::add_fixit_insert_before): Reimplement in terms of maybe_add_fixit, moving validation there. (rich_location::add_fixit_insert_after): Likewise. (column_before_p): Delete. (rich_location::add_fixit_replace): Reimplement in terms of maybe_add_fixit, moving validation there. Convert closed input range to half-open range. (rich_location::add_fixit): Delete. (rich_location::maybe_add_fixit): New function. (fixit_insert::fixit_insert): Delete. (fixit_insert::~fixit_insert): Delete. (fixit_insert::affects_line_p): Delete. (fixit_insert::maybe_append_replace): Delete. (fixit_replace::fixit_replace): Rename to... (fixit_hint::fixit_hint): ...this, rewriting as necessary. (fixit_replace::~fixit_replace): Delete. (fixit_replace::affects_line_p): Delete. (fixit_replace::maybe_append_replace): Rename to... (fixit_hint::maybe_append): ...this, rewriting as necessary. From-SVN: r247445 |
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|
David Malcolm
|
b9f4757f8e |
Fix issues with unrepresentable column numbers (PR c++/77949)
PR c++/77949 identifies an ICE when the C++ frontend attempts to emit a fix-it hint inserting a missing semicolon at column 4097 of a source file. This column value exceeds LINE_MAP_MAX_COLUMN_NUMBER and hence isn't representable using a location_t. Attempting to do so leads to these problems, which this patch fixes: (a) when encountering a column number > LINE_MAP_MAX_COLUMN_NUMBER we create a new linemap with m_column_and_range_bits == 0, but linemap_position_for_column doesn't check for this, and hence can emit a bogus location_t value that's calculated relative to the previous linemap start, but which will be decoded relative to the new linemap, leading to very large incorrect line values. (b) when encountering a column number that can't be represented, and for which the linemap was pre-existing, the code would hit this assertion: if (linemap_assert_fails (column < (1u << map->m_column_and_range_bits))) around a bail-out condition. The patch replaces this assertion with a simple conditional, to stop the ICE when this occurs, and fixes the bit count (effective column bits, vs column+range bits) (c) the C++ frontend wasn't checking for failure of linemap_position_for_loc_and_offset when considering emitting the fix-it hint. The patch adds a conditional, so that no fix-it hint is emitted if the location is bogus. gcc/cp/ChangeLog: PR c++/77949 * parser.c (cp_parser_class_specifier_1): Only suggest inserting a missing semicolon if we have a valid insertion location for the fix-it hint. gcc/ChangeLog: PR c++/77949 * input.c (selftest::test_accessing_ordinary_linemaps): Verify that we correctly handle column numbers greater than LINE_MAP_MAX_COLUMN_NUMBER. gcc/testsuite/ChangeLog: PR c++/77949 * g++.dg/diagnostic/pr77949.C: New test case. libcpp/ChangeLog: PR c++/77949 * line-map.c (linemap_position_for_column): When calling linemap_start_line, detect if a new linemap was created with 0 column bits, and bail out early if this is the case. (linemap_position_for_loc_and_offset): Replace overzealous linemap_assert_fails with a simple conditional; use correct bit count. From-SVN: r244292 |
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|
David Malcolm
|
5ccf1d8d10 |
Fix linemap corruption after very wide source lines (PR c++/72803)
PR c++/72803 describes an issue where a fix-it hint is to be emitted at
column 512 of a 511-column source line, leading to an ICE.
The root cause is a bug in linemap_line_start, when transitioning from
lines >= 512 in width to narrow lines.
The wide line in the reproducer has a line map with:
m_column_and_range_bits = 15, m_range_bits = 5
giving 10 effective bits for representing columns, so that columns <= 1023
can be represented.
When parsing the following line,
linemap_line_start (..., ..., max_column_hint=0);
is called. This leads to the "add_map" logic, due to this condition:
|| (max_column_hint <= 80 && effective_column_bits >= 10)
i.e. the new line is sufficiently narrower than the old one to
potentially use a new linemap (so as to conserve values within the
location_t space).
It then attempts to avoid allocating a new line map. Part of the logic
to determine if we really need a new line map is this condition:
SOURCE_COLUMN (map, highest) >= (1U << column_bits)
The above condition is incorrect: we need to determine if the highest
column we've handed out will fit within the proposed *effective* column
bits, but "column_bits" here is the column plus the range bits, rather
than just the column bits.
Hence in this case linemap_line_start erroneously decides that we don't
need a new line map, and updates the column bits within the existing
line map, so any location_t values we've already handed out within it
that are offset from the start by
>= (1<<new_column_and_range_bits)
effectively change meaning, leading to incorrect line&column information
when decoding them, and various "interesting" ways for the linemap
code to fail.
The fix is to use the effective column bits in the above conditional.
gcc/ChangeLog:
PR c++/72803
* input.c (selftest::test_accessing_ordinary_linemaps): Verify
that the transition from a max line width >= 1<<10 to narrower
lines works correctly.
gcc/testsuite/ChangeLog:
PR c++/72803
* g++.dg/diagnostic/pr72803.C: New test case.
libcpp/ChangeLog:
PR c++/72803
* line-map.c (linemap_line_start): When determining if the highest
column given out so far will fit into a proposed change to the
current map, use the effective number of column bits, rather than
the total number of column + range bits.
From-SVN: r244199
|
||
|
Jakub Jelinek
|
cbe34bb5ed |
Update copyright years.
From-SVN: r243994 |
||
|
David Malcolm
|
2be1b79650 |
Implement ~line_maps ()
line_maps instances such as the global line_table are GC-managed, but the htab within location_adhoc_data_map.htab is not GC-managed. Previously this was deleted manually by a call to location_adhoc_data_fini within toplev::main. However, on adding a call to forcibly_ggc_collect after the selftests, all of the htabs for the various line_tables created during the selftests start showing up as leaks in "make selftest-valgrind", e.g.: 13,536 (1,344 direct, 12,192 indirect) bytes in 12 blocks are definitely lost in loss record 1,065 of 1,086 at 0x4A081D4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) by 0x16DB3B0: xcalloc (xmalloc.c:163) by 0x16D8D34: htab_create_typed_alloc (hashtab.c:358) by 0x16D8DBD: htab_create_alloc (hashtab.c:286) by 0x16A2CCC: linemap_init(line_maps*, unsigned int) (line-map.c:353) by 0x1685605: selftest::line_table_test::line_table_test(selftest::line_table_case const&) (input.c:1624) by 0x167D09C: selftest::test_applying_fixits_modernize_named_init(selftest::line_table_case const&) (edit-context.c:1430) by 0x1686827: selftest::for_each_line_table_case(void (*)(selftest::line_table_case const&)) (input.c:3227) by 0x167F067: selftest::edit_context_c_tests() (edit-context.c:1658) by 0x1616E67: selftest::run_tests() (selftest-run-tests.c:71) by 0xC0DB25: toplev::run_self_tests() (toplev.c:2076) by 0x618EB4: toplev::main(int, char**) (toplev.c:2153) This patch removes the manual one-time cleanup in favor of adding a destructor to class line_maps, which cleans up the non-GC-managed htab. Doing so improves "make selftest-valgrind" from: ==61118== LEAK SUMMARY: ==61118== definitely lost: 121,248 bytes in 1,515 blocks ==61118== indirectly lost: 974,344 bytes in 959 blocks ==61118== possibly lost: 0 bytes in 0 blocks ==61118== still reachable: 1,332,599 bytes in 3,684 blocks ==61118== suppressed: 0 bytes in 0 blocks to: ==57182== LEAK SUMMARY: ==57182== definitely lost: 13,840 bytes in 556 blocks ==57182== indirectly lost: 0 bytes in 0 blocks ==57182== possibly lost: 0 bytes in 0 blocks ==57182== still reachable: 1,355,703 bytes in 3,684 blocks ==57182== suppressed: 0 bytes in 0 blocks gcc/ChangeLog: * toplev.c (toplev::main): Remove call to location_adhoc_data_fini. libcpp/ChangeLog: * include/line-map.h (line_maps::~line_maps): New dtor. (location_adhoc_data_fini): Delete decl. * line-map.c (line_maps::~line_maps): New dtor. (location_adhoc_data_fini): Delete. From-SVN: r241533 |
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|
Jason Merrill
|
63cb392608 |
Add from_macro_definition_at predicate for locations.
gcc/ * input.h (from_macro_definition_at): New. libcpp/ * line-map.c (linemap_location_from_macro_definition_p): New. * line-map.h: Declare it. From-SVN: r240330 |
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|
David Malcolm
|
3131620863 |
fix-it hints can't contain newlines
I hope to implement newline support within fix-it hints at some point, but currently it's not supported, and leads to misleading diagnostic output, so for now, fail gracefully. gcc/ChangeLog: * diagnostic-show-locus.c (selftest::test_fixit_insert_containing_newline): New function. (selftest::test_fixit_replace_containing_newline): New function. (selftest::diagnostic_show_locus_c_tests): Call the above. libcpp/ChangeLog: * include/line-map.h (class rich_location): Note that newlines aren't supported in fix-it text. * line-map.c (rich_location::add_fixit_insert_before): Reject attempts to add fix-its containing newlines. (rich_location::add_fixit_replace): Likewise. From-SVN: r240169 |
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|
David Malcolm
|
254830bab2 |
fix-it hints: insert_before vs insert_after
The API for adding "insert text" fix-it hints was unclear about exactly where the text should be inserted relative to the given insertion point. This patch clarifies things by renaming the pertinent methods from richloc.add_fixit_insert to richloc.add_fixit_insert_before and adding: richloc.add_fixit_insert_after The latter allows us to consolidate some failure-handling into class rich_location, rather than having to have every such diagnostic check for it. The patch also adds a description of how fix-it hints work to the comment for class rich_location within libcpp/include/line-map.h. gcc/c-family/ChangeLog: * c-common.c (warn_logical_not_parentheses): Replace rich_location::add_fixit_insert calls with add_fixit_insert_before and add_fixit_insert_after, eliminating the "next_loc" calculation. gcc/c/ChangeLog: * c-parser.c (c_parser_declaration_or_fndef): Update for renaming of add_fixit_insert to add_fixit_insert_before. gcc/cp/ChangeLog: * parser.c (cp_parser_class_specifier_1): Update for renaming of add_fixit_insert to add_fixit_insert_before. (cp_parser_class_head): Likewise. gcc/ChangeLog: * diagnostic-show-locus.c (selftest::test_one_liner_fixit_insert): Rename to... (selftest::test_one_liner_fixit_insert_before): ...this, and update for renaming of add_fixit_insert to add_fixit_insert_before. (selftest::test_one_liner_fixit_insert_after): New function. (selftest::test_one_liner_fixit_validation_adhoc_locations): Update for renaming of add_fixit_insert to add_fixit_insert_before. (selftest::test_one_liner_many_fixits): Likewise. (selftest::test_diagnostic_show_locus_one_liner): Update for renaming, call new test function. (selftest::test_diagnostic_show_locus_fixit_lines): Update for renaming of add_fixit_insert to add_fixit_insert_before. (selftest::test_fixit_consolidation): Likewise. * diagnostic.c (selftest::test_print_parseable_fixits_insert): Likewise. * edit-context.c (selftest::test_applying_fixits_insert): Rename to... (selftest::test_applying_fixits_insert_before): ...this. (selftest::test_applying_fixits_insert): Update for renaming of add_fixit_insert to add_fixit_insert_before. (selftest::test_applying_fixits_insert_after): New function. (selftest::test_applying_fixits_insert_after_at_line_end): New function. (selftest::test_applying_fixits_insert_after_failure): New function. (selftest::test_applying_fixits_multiple): Update for renaming of add_fixit_insert to add_fixit_insert_before. (selftest::change_line): Likewise. (selftest::test_applying_fixits_unreadable_file): Likewise. (selftest::test_applying_fixits_line_out_of_range): Likewise. (selftest::test_applying_fixits_column_validation): Likewise. (selftest::test_applying_fixits_column_validation): Likewise. (selftest::edit_context_c_tests): Update for renamed test function; call new test functions. gcc/testsuite/ChangeLog: * gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (test_show_locus): Replace rich_location::add_fixit_insert calls with add_fixit_insert_before and add_fixit_insert_after. libcpp/ChangeLog: * include/line-map.h (class rich_location): Add description of fix-it hints to leading comment. (rich_location::add_fixit_insert): Rename both overloaded methods to.. (rich_location::add_fixit_insert_before): ...this, updating their comments. (rich_location::add_fixit_insert_after): Two new overloaded methods. (rich_location::stop_supporting_fixits): New method. * line-map.c (rich_location::add_fixit_insert): Rename both overloaded methods to.. (rich_location::add_fixit_insert_before): ...this, updating their comments. (rich_location::add_fixit_insert_after): Two new methods. (rich_location::reject_impossible_fixit): Split out failure-handling into... (rich_location::stop_supporting_fixits): New method. From-SVN: r240115 |
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|
David Malcolm
|
3d4f9f878d |
diagnostic-show-locus.c: handle fixits on lines outside the regular ranges
The diagnostic_show_locus implementation determines the set of line spans that need printing based on the ranges within the rich_location (in layout::calculate_line_spans). Currently this doesn't take into account fix-it hints, and hence we fail to print fix-it hints that are on lines outside of those ranges. This patch updates the implementation to take fix-it hints into account when calculating the pertinent line spans, so that such fix-it hints do get printed. It also adds some validation, to ensure that we don't attempt to print fix-its hints affecting a different source file. gcc/ChangeLog: * diagnostic-show-locus.c (class layout): Add field m_fixit_hints. (layout_range::intersects_line_p): New method. (test_range_contains_point_for_single_point): Rename to... (test_layout_range_for_single_point): ...this, and add testing for layout_range::intersects_line_p. (test_range_contains_point_for_single_line): Rename to... (test_layout_range_for_single_line): ...this, and add testing for layout_range::intersects_line_p. (test_range_contains_point_for_multiple_lines): Rename to... (test_layout_range_for_multiple_lines): ...this, and add testing for layout_range::intersects_line_p. (layout::layout): Populate m_fixit_hints. (layout::get_expanded_location): Handle the case of a line-span for a fix-it hint. (layout::validate_fixit_hint_p): New method. (get_line_span_for_fixit_hint): New function. (layout::calculate_line_spans): Add spans for fixit-hints. (layout::should_print_annotation_line_p): New method. (layout::print_any_fixits): Drop param "richloc", instead using validated fixits in m_fixit_hints. Add "const" to hint pointers. (diagnostic_show_locus): Avoid printing blank annotation lines. (selftest::test_diagnostic_context::test_diagnostic_context): Initialize show_column and start_span. (selftest::test_diagnostic_context::start_span_cb): New static function. (selftest::test_diagnostic_show_locus_fixit_lines): New function. (selftest::diagnostic_show_locus_c_tests): Update for function renamings. Call test_diagnostic_show_locus_fixit_lines. libcpp/ChangeLog: * include/line-map.h (class fixit_remove): Remove stray decl. (fixit_hint::affects_line_p): Make const. (fixit_insert::affects_line_p): Likewise. (fixit_replace::affects_line_p): Likewise. * line-map.c (fixit_insert::affects_line_p): Likewise. (fixit_replace::affects_line_p): Likewise. From-SVN: r239906 |
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David Malcolm
|
b816477a5a |
Remove arbitrary limits from rich_location
This patch eliminates the hard-coded limits within rich_location (up to 3 ranges, up to 2 fixits). The common case is still handled by embedding the values inside rich_location - it only uses dynamic allocation if these limits are exceeded, so creation of rich_location instances on the stack should still be fast. This is implemented via a new container class, semi_embedded_vec <T, N>. gcc/ChangeLog: * diagnostic-show-locus.c (colorizer::begin_state): Support more than 3 ranges per diagnostic by alternating between color 1 and color 2. (layout::layout): Replace use of rich_location::MAX_RANGES with richloc->get_num_locations (). (layout::calculate_line_spans): Replace use of rich_location::MAX_RANGES with m_layout_ranges.length (). (layout::print_annotation_line): Handle arbitrary numbers of ranges in caret-printing by defaulting to '^'. (selftest::test_one_liner_many_fixits): New function. (test_diagnostic_show_locus_one_liner): Call it. * diagnostic.c (diagnostic_initialize): Update for renaming of rich_location::MAX_RANGES to rich_location::STATICALLY_ALLOCATED_RANGES. * diagnostic.h (struct diagnostic_context): Likewise. gcc/testsuite/ChangeLog: * gcc.dg/plugin/diagnostic-test-show-locus-bw.c (test_many_nested_locations): New function. * gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (test_show_locus): Handle "test_many_nested_locations". libcpp/ChangeLog: * include/line-map.h (class semi_embedded_vec): New class. (semi_embedded_vec<T, NUM_EMBEDDED>::semi_embedded_vec): New ctor. (semi_embedded_vec<T, NUM_EMBEDDED>::~semi_embedded_vec): New dtor. (semi_embedded_vec<T, NUM_EMBEDDED>::operator[]): New methods. (semi_embedded_vec<T, NUM_EMBEDDED>::push): New method. (semi_embedded_vec<T, NUM_EMBEDDED>::truncate): New method. (rich_location::get_num_locations): Reimplement in terms of m_ranges. (rich_location::get_range): Make non-inline. (rich_location::get_num_fixit_hints): Reimplement in terms of m_fixit_hints. (rich_location::add_fixit): New function. (rich_location::MAX_RANGES): Rename to... (rich_location::STATICALLY_ALLOCATED_RANGES): ...this. (rich_location::MAX_FIXIT_HINTS): Rename to... (rich_location::STATICALLY_ALLOCATED_RANGES): ...this, and make private. (rich_location::m_num_ranges): Eliminate in favor of... (rich_location::m_ranges): ...this, converting from a fixed-size array to a semi_embedded_vec. (rich_location::m_num_fixit_hints): Eliminate in favor of... (rich_location::m_fixit_hints): ...this, converting from a fixed-size array to a semi_embedded_vec. * line-map.c (rich_location::rich_location): Update for above changes. (rich_location::~rich_location): Likewise. (rich_location::get_loc): Likewise. (rich_location::get_range): New methods. (rich_location::add_range): Update for above changes. (rich_location::set_range): Likewise. (rich_location::add_fixit_insert): Likewise. (rich_location::add_fixit_replace): Likewise. (rich_location::get_last_fixit_hint): Likewise. (rich_location::reject_impossible_fixit): Likewise. (rich_location::add_fixit): New method. From-SVN: r239879 |
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David Malcolm
|
f908779801 |
rich_location: add convenience overloads for adding fix-it hints
Adding a fix-it hint to a diagnostic usually follows one of these patterns: (a) an insertion fix-its, with the insertion at the primary caret location (b) a removals/replacements, affecting the range of the primary location (other cases are possible, e.g. multiple fix-its, and affecting other locations, but these are the common ones) Given these common cases, this patch adds overloads of the rich_location methods for adding fix-it hints, so that the location information can be omitted if it matches that of the primary location within the rich_location. Similarly when adding "remove" and "replace" fix-it hints to a diagnostic, it's tedious to have to extract the source_range from a location_t (aka source_location). To make this more convenient, this patch adds overload of the rich_location::add_fixit_remove/replace methods, accepting a source_location directly. The patch updates the various in-tree users of fix-it hints to use the new simpler API where appropriate. I didn't touch the case where there are multiple fix-its in one rich_location, as it seems better to be more explicit about locations for this case (adding a pair of parens in warn_logical_not_parentheses). The above makes the gcc_rich_location::add_fixit_misspelled_id overload taking a const char * rather redundant, so I eliminated it. gcc/c/ChangeLog: * c-decl.c (implicit_decl_warning): Use add_fixit_replace rather than add_fixit_misspelled_id. (undeclared_variable): Likewise. * c-parser.c (c_parser_declaration_or_fndef): Likewise. Remove now-redundant "here" params from add_fixit_insert method calls. (c_parser_parameter_declaration): Likewise. * c-typeck.c (build_component_ref): Remove now-redundant range param from add_fixit_replace method calls. gcc/cp/ChangeLog: * name-lookup.c (suggest_alternatives_for): Use add_fixit_replace rather than add_fixit_misspelled_id. * parser.c (cp_parser_diagnose_invalid_type_name): Likewise. gcc/ChangeLog: * diagnostic-show-locus.c (test_one_liner_fixit_insert): Remove redundant location param. (test_one_liner_fixit_remove): Likewise. (test_one_liner_fixit_replace): Likewise. (test_one_liner_fixit_replace_equal_secondary_range): Likewise. * gcc-rich-location.c (gcc_rich_location::add_fixit_misspelled_id): Eliminate call to get_range_from_loc. Drop overload taking a const char *. * gcc-rich-location.h (gcc_rich_location::add_fixit_misspelled_id): Drop overload taking a const char *. libcpp/ChangeLog: * include/line-map.h (rich_location::add_fixit_insert): Add comments. Add overload omitting the source_location param. (rich_location::add_fixit_remove): Add comments. Add overloads omitting the range, and accepting a source_location. (rich_location::add_fixit_replace): Likewise. * line-map.c (rich_location::add_fixit_insert): Add comments. Add overload omitting the source_location param. (rich_location::add_fixit_remove): Add comments. Add overloads omitting the range, and accepting a source_location. (rich_location::add_fixit_replace): Likewise. From-SVN: r239861 |
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David Malcolm
|
2aa514130a |
Allow the use of ad-hoc locations for fix-it hints
Currently the fix-it validator rejects ad-hoc locations. Fix this by calling get_pure_location on the input locations to add_fixit_insert/replace. Doing so requires moving get_pure_location from gcc to libcpp. gcc/ChangeLog: * diagnostic-show-locus.c (selftest::test_one_liner_fixit_validation_adhoc_locations): New function. (selftest::test_diagnostic_show_locus_one_liner): Call it. * input.c (get_pure_location): Move to libcpp/line-map.c. * input.h (get_pure_location): Convert decl to an inline function calling implementation in libcpp. libcpp/ChangeLog: * include/line-map.h (get_pure_location): New decl. * line-map.c (get_pure_location): Move here, from gcc/input.c, adding a line_maps * param. (rich_location::add_fixit_insert): Call get_pure_location on "where". (rich_location::add_fixit_replace): Call get_pure_location on the end-points. From-SVN: r239843 |
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David Malcolm
|
ee90851679 |
Add validation and consolidation of fix-it hints
The first aspect of this patch is to add some checking of fix-it hints.
The idea is to put this checking within the rich_location machinery,
rather than requiring every diagnostic to implement it for itself.
The fixits within a rich_location are "atomic": all must be valid for
any to be applicable.
We reject any fixits involving locations above
LINE_MAP_MAX_LOCATION_WITH_COLS.
There's no guarantee that it's sane to modify a macro, so we reject
any fix-its that touch them.
For example, note the attempt to provide a fix-it for the definition
of the macro FIELD:
spellcheck-fields-2.c: In function ‘test_macro’:
spellcheck-fields-2.c:26:15: error: ‘union u’ has no member named ‘colour’; did you mean ‘color’?
#define FIELD colour
^
color
spellcheck-fields-2.c:27:15: note: in expansion of macro ‘FIELD’
return ptr->FIELD;
^~~~~
After this patch, the fixit is not displayed:
spellcheck-fields-2.c: In function ‘test_macro’:
spellcheck-fields-2.c:26:15: error: ‘union u’ has no member named ‘colour’; did you mean ‘color’?
#define FIELD colour
^
spellcheck-fields-2.c:27:15: note: in expansion of macro ‘FIELD’
return ptr->FIELD;
^~~~~
We might want some way for a diagnostic to opt-in to fix-its that
affect macros, but for now it's simplest to reject them.
The other aspect of this patch is fix-it consolidation: in some cases
neighboring fix-its can be merged. For example, in a diagnostic to
modernize old-style struct initializers from:
struct s example = {
- foo: 1,
+ .foo = 1,
};
one approach would be to replace the "foo" with ".foo" and the ":"
with " =". This would give two "replace" fix-its:
foo: 1,
--- FIXIT 1
.foo
- FIXIT 2
=
This patch allows them to be consolidated into a single "replace" fix-it:
foo: 1,
----
.foo =
gcc/ChangeLog:
* diagnostic-show-locus.c
(selftest::test_fixit_consolidation): New function.
(selftest::diagnostic_show_locus_c_tests): Call it.
* gcc-rich-location.h (gcc_rich_location): Eliminate unused
constructor based on source_range.
gcc/testsuite/ChangeLog:
* gcc.dg/spellcheck-fields-2.c (test): Move
dg-begin/end-multiline-output within function body.
(test_macro): New function.
libcpp/ChangeLog:
* include/line-map.h (rich_location): Eliminate unimplemented
constructor based on source_range.
(rich_location::get_last_fixit_hint): New method.
(rich_location::reject_impossible_fixit): New method.
(rich_location): Add fields m_line_table and
m_seen_impossible_fixit.
(fixit_hint::maybe_append_replace): New pure virtual function.
(fixit_insert::maybe_append_replace): New function.
(fixit_replace::maybe_append_replace): New function.
* line-map.c (rich_location::rich_location): Initialize
m_line_table and m_seen_impossible_fixit.
(rich_location::add_fixit_insert): Call
reject_impossible_fixit and bail out if true.
(column_before_p): New function.
(rich_location::add_fixit_replace): Call reject_impossible_fixit
and bail out if true. Attempt to consolidate with neighboring
fixits.
(rich_location::get_last_fixit_hint): New method.
(rich_location::reject_impossible_fixit): New method.
(fixit_insert::maybe_append_replace): New method.
(fixit_replace::maybe_append_replace): New method.
From-SVN: r239789
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David Malcolm
|
2ffe0809cb |
Reimplement removal fix-it hints in terms of replace
This patch eliminates class fixit_remove, reimplementing
rich_location::add_fixit_remove in terms of replacement with the
empty string. Deleting the removal subclass simplifies
fixit-handling code, as we only have two concrete fixit_hint
subclasses to deal with, rather than three.
The patch also fixes some problems in diagnostic-show-locus.c for
situations where a replacement fix-it has a different range to the
range of the diagnostic, by unifying the drawing of the two kinds of
fixits. For example, this:
foo = bar.field;
^
m_field
becomes:
foo = bar.field;
^
-----
m_field
showing the range to be replaced.
gcc/ChangeLog:
* diagnostic-show-locus.c
(layout::annotation_line_showed_range_p): New method.
(layout::print_any_fixits): Remove case fixit_hint::REMOVE.
Reimplement case fixit_hint::REPLACE to cover removals, and
replacements where the range of the replacement isn't one
of the ranges in the rich_location.
(test_one_liner_fixit_replace): Likewise.
(selftest::test_one_liner_fixit_replace_non_equal_range): New
function.
(selftest::test_one_liner_fixit_replace_equal_secondary_range):
New function.
(selftest::test_diagnostic_show_locus_one_liner): Call the new
functions.
* diagnostic.c (print_parseable_fixits): Remove case
fixit_hint::REMOVE.
libcpp/ChangeLog:
* include/line-map.h (fixit_hint::kind): Delete REPLACE.
(class fixit_remove): Delete.
* line-map.c (rich_location::add_fixit_remove): Reimplement
by calling add_fixit_replace with an empty string.
(fixit_remove::fixit_remove): Delete.
(fixit_remove::affects_line_p): Delete.
From-SVN: r239632
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David Malcolm
|
741d3be543 |
input.c: add lexing selftests and a test matrix for line_table states
This patch adds explicit testing of lexing a source file, generalizing this (and the test of ordinary line maps) over a 2-dimensional test matrix covering: (1) line_table->default_range_bits: some frontends use a non-zero value and others use zero (2) the fallback modes within line-map.c: there are various threshold values for source_location/location_t beyond line-map.c changes behavior (disabling of the range-packing optimization, disabling of column-tracking). We exercise these by starting the line_table at interesting values at or near these thresholds. This helps ensures that location data works in all of these states, and that (I hope) we don't have lingering bugs relating to the transition between line_table states. gcc/ChangeLog: * input.c: Include cpplib.h. (selftest::temp_source_file): New class. (selftest::temp_source_file::temp_source_file): New ctor. (selftest::temp_source_file::~temp_source_file): New dtor. (selftest::should_have_column_data_p): New function. (selftest::test_should_have_column_data_p): New function. (selftest::temp_line_table): New class. (selftest::temp_line_table::temp_line_table): New ctor. (selftest::temp_line_table::~temp_line_table): New dtor. (selftest::test_accessing_ordinary_linemaps): Add case_ param; use it to create a temp_line_table. (selftest::assert_loceq): Only verify LOCATION_COLUMN for locations that are known to have column data. (selftest::line_table_case): New struct. (selftest::test_reading_source_line): Move tempfile handling to class temp_source_file. (ASSERT_TOKEN_AS_TEXT_EQ): New macro. (selftest::assert_token_loc_eq): New function. (ASSERT_TOKEN_LOC_EQ): New macro. (selftest::test_lexer): New function. (selftest::boundary_locations): New array. (selftest::input_c_tests): Call test_should_have_column_data_p. Loop over a test matrix of interesting values of location and default_range_bits, calling test_lexer on each case in the matrix. Move call to test_accessing_ordinary_linemaps into the matrix. * selftest.h (ASSERT_EQ): Reimplement in terms of... (ASSERT_EQ_AT): New macro. gcc/testsuite/ChangeLog: * gcc.dg/plugin/location_overflow_plugin.c (plugin_init): Avoid hardcoding the values of LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES and LINE_MAP_MAX_LOCATION_WITH_COLS. libcpp/ChangeLog: * include/line-map.h (LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES): Move here from line-map.c. (LINE_MAP_MAX_LOCATION_WITH_COLS): Likewise. * line-map.c (LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES): Move from here to line-map.h. (LINE_MAP_MAX_LOCATION_WITH_COLS): Likewise. From-SVN: r238213 |
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John David Anglin
|
fe55692cb3 |
c-common.c (get_source_date_epoch): Use int64_t instead of long long.
* c-common.c (get_source_date_epoch): Use int64_t instead of long long. * gcov-tool.c (profile_rewrite): Use int64_t instead of long long. (do_rewrite): likewise. * line-map.c (location_adhoc_data_update): Use int64_t instead of long long. (get_combined_adhoc_loc): Likewise. From-SVN: r237676 |
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Bernd Schmidt
|
3caf0ca1d3 |
re PR preprocessor/69650 (ICE in linemap_line_start, at libcpp/line-map.c:803)
PR lto/69650 * directives.c (do_linemarker): Test for file left but not entered here. * line-map.c (linemap_add): Not here. PR lto/69650 * gcc.dg/pr69650.c: New test. From-SVN: r234481 |
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Richard Henderson
|
64567cfd1d |
Fix compiling large files
* line-map.c (new_linemap): Make alloc_size a size_t. From-SVN: r234239 |
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David Malcolm
|
b4f3232d69 |
PR c++/70105: prevent nonsensical underline spew for macro expansions
diagnostic_show_locus can sometimes do the wrong thing when handling expressions built up from macros. PR c++/70105 (currently marked as a P3 regression) has an example of a diagnostic where over 500 lines of irrelevant source are printed, and underlined, giving >1000 lines of useless spew to stderr. This patch adds extra sanitization to diagnostic-show-locus.c, so that we only attempt to print underlines and secondary locations if such locations are "sufficiently sane" relative to the primary location of a diagnostic. This "sufficiently sane" condition is implemented by a new helper function compatible_locations_p, which requires such locations to have the same macro expansion hierarchy as the primary location, using linemap_macro_map_loc_unwind_toward_spelling, effectively mimicing the expansion performed by LRK_SPELLING_LOCATION. This may be too strong a condition, but it effectively fixes PR c++/70105, without removing any underlines in my testing. Successfully bootstrapped®rtested in combination with the previous patch on x86_64-pc-linux-gnu; adds 15 new PASS results to g++.sum and 4 new PASS results to gcc.sum. gcc/ChangeLog: PR c/68473 PR c++/70105 * diagnostic-show-locus.c (compatible_locations_p): New function. (layout::layout): Sanitize ranges using compatible_locations_p. gcc/testsuite/ChangeLog: PR c/68473 PR c++/70105 * g++.dg/diagnostic/pr70105.C: New test. * gcc.dg/plugin/diagnostic-test-expressions-1.c (foo): New decl. (test_multiple_ordinary_maps): New test function. libcpp/ChangeLog: PR c/68473 PR c++/70105 * line-map.c (linemap_macro_map_loc_unwind_toward_spelling): Move decl... * include/line-map.h (linemap_macro_map_loc_unwind_toward_spelling): ...here, converting from static to extern. From-SVN: r234088 |
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David Malcolm
|
40499f81a6 |
PR c++/70105: Defer location expansion until diagnostic_show_locus
gcc/ChangeLog: PR c/68473 PR c++/70105 * diagnostic-show-locus.c (layout_range::layout_range): Replace location_range param with three const expanded_locations * and a bool. (layout::layout): Replace call to rich_location::lazily_expand_location with get_expanded_location. Extract the range and perform location expansion here, passing the results to the layout_range ctor. * diagnostic.c (source_range::debug): Delete. * diagnostic.h (diagnostic_expand_location): Reimplement in terms of rich_location::get_expanded_location. * gcc-rich-location.c (get_range_for_expr): Delete. (gcc_rich_location::add_expr): Reimplement to avoid the rich_location::add_range overload that took a location_range, passing a location_t instead. gcc/testsuite/ChangeLog: PR c/68473 PR c++/70105 * gcc.dg/plugin/diagnostic_plugin_show_trees.c (show_tree): Drop range information from call to inform_at_rich_loc. * gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (add_range): New. (test_show_locus): Replace calls to rich_location::add_range with calls to add_range. Rewrite the tests that used the now-defunct rich_location ctor taking a source_range. Simplify other tests by replacing calls to COMBINE_LOCATION_DATA with calls to make_location. libcpp/ChangeLog: PR c/68473 PR c++/70105 * include/line-map.h (source_range::debug): Delete. (struct location_range): Update comment. Replace expanded_location fields "m_start", "m_finish", and "m_caret" with a source_location field: "m_loc". (class rich_location): Reword comment. (rich_location::get_loc): Reimplement in terms of a new overloaded variant which takes an unsigned int. (rich_location::get_loc_addr): Delete. (rich_location::add_range): Drop params "start" and "finish" in favor of param "loc". Drop overloaded variants taking a source_range or location_range *. (rich_location::lazily_expand_location): Delete in favor of... (rich_location::get_expanded_location): New decl. (rich_location::m_loc): Delete field. (rich_location::m_column_override): New field. * line-map.c (rich_location::rich_location): Drop name of line_maps * param. Update initializations for deletion of field "m_loc" and addition of field "m_column_override". Reimplement body as a call to add_range. Delete overloaded variant taking a source_range. (rich_location::get_loc): New function. (rich_location::lazily_expand_location): Delete in favor of... (rich_location::get_expanded_location): New function. (rich_location::override_column): Reimplement. (rich_location::add_range): Drop params "start" and "finish" in favor of param "loc". Eliminate location expansion in favor of simply storing loc. Drop overloaded variants taking a source_range or location_range *. (rich_location::set_range): Eliminate location expansion. From-SVN: r234087 |
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David Malcolm
|
7168133a37 |
PR preprocessor/69985: fix ICE with long lines in -Wformat
gcc/testsuite/ChangeLog: PR preprocessor/69985 * gcc.dg/cpp/pr69985.c: New test case. libcpp/ChangeLog: PR preprocessor/69985 (linemap_position_for_loc_and_offset): Rename param from "offset" to "column_offset". Right-shift the column_offset by m_range_bits of the pertinent ordinary map whenever offsetting a source_location. For clarity, offset the column by the column offset, rather than the other way around. From-SVN: r233836 |
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David Malcolm
|
196440f844 |
PR preprocessor/69126: avoid comparing ad-hoc and non-ad-hoc locations
gcc/testsuite/ChangeLog: PR preprocessor/69126 PR preprocessor/69543 * c-c++-common/pr69126-2-long.c: New test. * c-c++-common/pr69126-2-short.c: New test. * c-c++-common/pr69543-1.c: Remove xfail. libcpp/ChangeLog: PR preprocessor/69126 PR preprocessor/69543 * line-map.c (linemap_compare_locations): At the function top, replace inlined bodies of get_location_from_adhoc_loc with calls to get_location_from_adhoc_loc. Add a pair of calls to get_location_from_adhoc_loc at the bottom of the function, to avoid meaningless comparisons of ad-hoc and non-ad-hoc locations. From-SVN: r233638 |
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David Malcolm
|
44714d8ce1 |
PR preprocessor/69664: fix rich_location::override_column
gcc/testsuite/ChangeLog: PR preprocessor/69664 * gcc.dg/cpp/trad/comment-2.c: Add expected column number. * gcc.dg/cpp/warn-comments.c: Likewise. libcpp/ChangeLog: PR preprocessor/69664 * errors.c (cpp_diagnostic_with_line): Only call rich_location::override_column if the column is non-zero. * line-map.c (rich_location::override_column): Update columns within m_ranges[0]. Add assertions to verify that doing so is sane. From-SVN: r233223 |
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David Malcolm
|
c7df95d83e |
PR preprocessor/69177 and PR c++/68819: libcpp fallbacks and -Wmisleading-indentation
gcc/c-family/ChangeLog: PR c++/68819 * c-indentation.c (get_visual_column): Add location_t param. Handle the column number being zero by effectively disabling the warning, with an "inform". (should_warn_for_misleading_indentation): Add location_t argument for all uses of get_visual_column. gcc/testsuite/ChangeLog: PR c++/68819 PR preprocessor/69177 * gcc.dg/plugin/location-overflow-test-1.c: New test case. * gcc.dg/plugin/location-overflow-test-2.c: New test case. * gcc.dg/plugin/location_overflow_plugin.c: New test plugin. * gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above. libcpp/ChangeLog: PR preprocessor/69177 * line-map.c (LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES): New constant. (LINE_MAP_MAX_LOCATION_WITH_COLS): Add note about unit tests to comment. (can_be_stored_compactly_p): Reduce threshold from LINE_MAP_MAX_LOCATION_WITH_COLS to LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES. (get_combined_adhoc_loc): Likewise. (get_range_from_loc): Likewise. (linemap_line_start): Ensure that a new ordinary map is created when transitioning from range-packing being enabled to disabled, at the LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES threshold. Set range_bits to 0 for new ordinary maps when beyond this limit. Prevent the "increase the column bits of a freshly created map" optimization if the range bits has reduced. From-SVN: r232379 |
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Jakub Jelinek
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818ab71a41 |
Update copyright years.
From-SVN: r232055 |
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David Malcolm
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329590d704 |
libcpp: Avoid unnecessary ad-hoc uses for large source files
libcpp/ChangeLog: * line-map.c (get_combined_adhoc_loc): Remove condition on locus < RESERVED_LOCATION_COUNT when considering whether a caret == start == finish location can be simply stored as the caret location. From-SVN: r231918 |
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David Malcolm
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f79520bb11 |
Fix missing range information for "%q+D" format code
gcc/c-family/ChangeLog: * c-common.c (c_cpp_error): Update for change to rich_location::set_range. gcc/fortran/ChangeLog: * error.c (gfc_format_decoder): Update for change of text_info::set_range to text_info::set_location. gcc/ChangeLog: * pretty-print.c (text_info::set_range): Rename to... (text_info::set_location): ...this, converting 2nd param from source_range to a location_t. * pretty-print.h (text_info::set_location): Convert from inline function to external definition. (text_info::set_range): Delete. gcc/testsuite/ChangeLog: * gcc.dg/diagnostic-ranges-1.c: New test file. * gcc.dg/plugin/diagnostic-test-show-locus-bw.c (test_percent_q_plus_d): New test function. * gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (test_show_locus): Rewrite test code using rich_location::set_range. Add code to unit-test the "%q+D" format code. libcpp/ChangeLog: * include/line-map.h (rich_location::set_range): Add line_maps * param; convert param from source_range to source_location. Drop "overwrite_loc_p" param. * line-map.c (rich_location::set_range): Likewise, acting as if "overwrite_loc_p" were true, and getting range from the location. From-SVN: r231367 |
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David Malcolm
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a87a86e1e9 |
PR 62314: add ability to add fixit-hints to a diagnostic
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 |
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David Malcolm
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ebedc9a341 |
Source range tracking in libcpp and C FE, with bit-packing optimization
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 |
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David Malcolm
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8a64515099 |
Reimplement diagnostic_show_locus, introducing rich_location classes
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 |
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David Malcolm
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ee015909ee |
Add stats on adhoc table to dump_line_table_statistics
gcc/ChangeLog: * input.c (dump_line_table_statistics): Dump stats on adhoc table. libcpp/ChangeLog: * include/line-map.h (struct linemap_stats): Add fields "adhoc_table_size" and "adhoc_table_entries_used". * line-map.c (linemap_get_statistics): Populate above fields. From-SVN: r229873 |
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Manuel López-Ibáñez
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87b470b363 |
Handle lines encoded into several maps in linemap_position_for_loc_and_offset
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 |