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2018-11-09PR c/87795 - Excessive alignment permitted for functions and labelsMartin Sebor1-14/+36
gcc/c-family/ChangeLog: PR c/87795 * c-common.c (check_user_alignment): Use MAX_OFILE_ALIGNMENT. gcc/testsuite/ChangeLog: PR c/87795 * gcc.dg/attr-aligned.c: New test. From-SVN: r265977
2018-10-29Folding and check_function_argumentsDavid Malcolm1-4/+13
This patch eliminates the arglocs array I introduced to build_over_call in r264887, and eliminates the call to maybe_constant_value when building "fargs" (thus retaining location wrapper nodes). Instead, this patch requires that any checks within check_function_arguments that need folded arguments do their own folding. Of the various checks: (a) check_function_nonnull already calls fold_for_warn, (b) check_function_format doesn't need folding (c) check_function_sentinel needs fold_for_warn in one place, which the patch adds, and (d) check_function_restrict needs per-argument folding, which the patch adds. Given that it scans before and after resetting TREE_VISITED on each argument, it seemed best to make a copy of the array, folding each argument from the outset, rather than repeatedly calling fold_for_warn; gcc/c-family/ChangeLog: PR c++/56856 * c-common.c (check_function_sentinel): Call fold_for_warn on the argument. (check_function_restrict): Rename param "argarray" to "unfolded_argarray", and make a copy named "argarray", calling fold_for_warn on each argument. (check_function_arguments): Add note about responsibility for folding the arguments. gcc/cp/ChangeLog: PR c++/56856 * call.c (build_over_call): Eliminate the "arglocs" array, and the call to maybe_constant_value when building "fargs". From-SVN: r265609
2018-10-18Add -std=c2x, -std=gnu2x, -Wc11-c2x-compat, C2X _Static_assert support.Joseph Myers1-0/+4
Now new features are starting to be added to a C2X draft (in the C2x branch of the C standard git repository, no public WG14 document yet), it's time to add -std=c2x and associated options to GCC for use in enabling C2X features. This patch adds the expected set of options: -std=c2x, -std=gnu2x, -Wc11-c2x-compat. A first C2X feature is added (the only one so far in the repository that's obviously relevant to GCC): support (as in C++) for the string constant to be omitted in _Static_assert. This feature is duly also supported as an extension in earlier standard modes (diagnosed with -pedantic, unless -Wno-c11-c2x-compat is given, or with -Wc11-c2x-compat even in C2X mode). Bootstrapped with no regressions on x86_64-pc-linux-gnu. gcc/ * doc/cpp.texi (__STDC_VERSION__): Document C2X handling. * doc/invoke.texi (-std=c2x, -std=gnu2x): Document new options. * doc/standards.texi (C Language): Document C2X. * dwarf2out.c (highest_c_language), config/rl78/rl78.c (rl78_option_override): Handle "GNU C2X" language name. gcc/c/ * c-errors.c (pedwarn_c11): New function. * c-parser.c (disable_extension_diagnostics): Save warn_c11_c2x_compat and set it to 0. (restore_extension_diagnostics): Restore warn_c11_c2x_compat. (c_parser_static_assert_declaration_no_semi): Handle _Static_assert without string constant. * c-tree.h (pedwarn_c11): New prototype. gcc/c-family/ * c-common.c (flag_isoc2x): New variable. * c-common.h (clk_c): Update comment to reference C2X. (flag_isoc99, flag_isoc11): Update comments to reference future standard versions in general. (flag_isoc2x): Declare. * c-opts.c (set_std_c2x): New function. (c_common_handle_option): Handle -std=c2x and -std=gnu2x. (set_std_c89, set_std_c99, set_std_c11, set_std_c17): Set flag_isoc2x to 0. * c.opt (Wc11-c2x-compat, std=c2x, std=gnu2x): New options. gcc/testsuite/ * gcc.dg/c11-static-assert-7.c, gcc.dg/c11-static-assert-8.c, gcc.dg/c11-static-assert-9.c, gcc.dg/c2x-static-assert-1.c, gcc.dg/c2x-static-assert-2.c, gcc.dg/c99-static-assert-2.c, gcc.dg/gnu2x-static-assert-1.c: New tests. * gcc.dg/missing-symbol-3.c: Update expected fix-it text. libcpp/ * include/cpplib.h (enum c_lang): Add CLK_GNUC2X and CLK_STDC2X. * init.c (lang_defaults): Add GNUC2X and STDC2X entries. (cpp_init_builtins): Define __STDC_VERSION__ to 202000L for C2X. From-SVN: r265251
2018-10-09Cleanup of libcpp diagnostic callbacksDavid Malcolm1-7/+10
This patch renames the "error" callback within libcpp to "diagnostic", and uses the pair of enums in cpplib.h, rather than passing two different kinds of "int" around. gcc/c-family/ChangeLog: * c-common.c (c_option_controlling_cpp_error): Rename to... (c_option_controlling_cpp_diagnostic): ...this, and convert "reason" from int to enum. (c_cpp_error): Rename to... (c_cpp_diagnostic): ...this, converting level and reason to enums. * c-common.h (c_cpp_error): Rename to... (c_cpp_diagnostic): ...this, converting level and reason to enums. * c-opts.c (c_common_init_options): Update for renaming. gcc/fortran/ChangeLog: * cpp.c (gfc_cpp_init_0): Update for renamings. (cb_cpp_error): Rename to... (cb_cpp_diagnostic): ...this, converting level and reason to enums. gcc/ChangeLog: * genmatch.c (error_cb): Rename to... (diagnostic_cb): ...this, converting int params to enums. (fatal_at): Update for renaming. (warning_at): Likewise. (main): Likewise. * input.c (selftest::ebcdic_execution_charset::apply): Update for renaming of... (selftest::ebcdic_execution_charset::on_error): ...this, renaming to... (selftest::ebcdic_execution_charset::on_diagnostic): ...this, converting level and reason to enums. (class selftest::lexer_error_sink): Rename to... (class selftest::lexer_test_options): ...this, renaming field "m_errors" to "m_diagnostics". (selftest::lexer_test_options::apply): Update for renaming of... (selftest::lexer_test_options::on_error): ...this, renaming to... (selftest::lexer_test_options::on_diagnostic): ...this converting level and reason to enums. (selftest::test_lexer_string_locations_raw_string_unterminated): Update for renamings. * opth-gen.awk (struct cpp_reason_option_codes_t): Use enum for "reason". libcpp/ChangeLog: * charset.c (noop_error_cb): Rename to... (noop_diagnostic_cb): ...this, converting params to enums. (cpp_interpret_string_ranges): Update for renaming and enums. * directives.c (check_eol_1): Convert reason to enum. (do_diagnostic): Convert code and reason to enum. (do_error): Use CPP_W_NONE rather than 0. (do_pragma_dependency): Likewise. * errors.c (cpp_diagnostic_at): Convert level and reason to enums. Update for renaming. (cpp_diagnostic): Convert level and reason to enums. (cpp_error): Convert level to enum. (cpp_warning): Convert reason to enums. (cpp_pedwarning): Likewise. (cpp_warning_syshdr): Likewise. (cpp_diagnostic_with_line): Convert level and reason to enums. Update for renaming. (cpp_error_with_line): Convert level to enum. (cpp_warning_with_line): Convert reason to enums. (cpp_pedwarning_with_line): Likewise. (cpp_warning_with_line_syshdr): Likewise. (cpp_error_at): Convert level to enum. (cpp_errno): Likewise. (cpp_errno_filename): Likewise. * include/cpplib.h (enum cpp_diagnostic_level): Name this enum, and move to before struct cpp_callbacks. (enum cpp_warning_reason): Likewise. (cpp_callbacks::diagnostic): Convert params from int to enums. (cpp_error): Convert int param to enum cpp_diagnostic_level. (cpp_warning): Convert int param to enum cpp_warning_reason. (cpp_pedwarning): Likewise. (cpp_warning_syshdr): Likewise. (cpp_errno): Convert int param to enum cpp_diagnostic_level. (cpp_errno_filename): Likewise. (cpp_error_with_line): Likewise. (cpp_warning_with_line): Convert int param to enum cpp_warning_reason. (cpp_pedwarning_with_line): Likewise. (cpp_warning_with_line_syshdr): Likewise. (cpp_error_at): Convert int param to enum cpp_diagnostic_level. * macro.c (create_iso_definition): Convert int to enum. (_cpp_create_definition): Likewise. From-SVN: r264999
2018-10-08Don't ICE on vectors of enums (PR 87286)Richard Sandiford1-3/+6
We've traditionally allowed vectors of enums (not sure if that's deliberate) but vector_types_compatible_elements_p checked for INTEGER_TYPE rather than INTEGRAL_TYPE_P. 2018-10-08 Richard Sandiford <richard.sandiford@arm.com> gcc/c-family/ PR c/87286 * c-common.c (vector_types_compatible_elements_p): Use INTEGRAL_TYPE_P instead of checking only for INTEGER_TYPE. gcc/testsuite/ PR c/87286 * gcc.dg/pr87286.c: New test. From-SVN: r264913
2018-09-25Remove Pascal-related entries in code and comments.Martin Liska1-1/+1
2018-09-25 Martin Liska <mliska@suse.cz> * config/powerpcspe/powerpcspe.c (rs6000_output_function_epilogue): Do not handle "GNU Pascal". * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Likewise. * config/sparc/sparc.c (sparc_pass_by_reference): Remove Pascal from documentation. Likewise. * dbxout.c (dbxout_range_type): Likewise. * doc/cpp.texi: Likewise. * doc/extend.texi: Likewise. * doc/frontends.texi: Likewise. * doc/invoke.texi: Remove Pascal entry. * tree.def (CLEANUP_POINT_EXPR): Likewise. * doc/rtl.texi (MODE_FUNCTION): Remove not used entry. 2018-09-25 Martin Liska <mliska@suse.cz> * c-common.c (c_common_truthvalue_conversion): Remove Pascal from documentation. From-SVN: r264559
2018-09-06varasm.c (output_constructor_regular_field): Check TYPE_SIZE_UNIT of the ↵Bernd Edlinger1-0/+22
init value. * varasm.c (output_constructor_regular_field): Check TYPE_SIZE_UNIT of the init value. * c-common.c (complete_flexible_array_elts): New helper function. * c-common.h (complete_flexible_array_elts): Declare. * c-decl.c (finish_decl): Call complete_flexible_array_elts. * decl.c (check_initializer): Call cp_complete_array_type. From-SVN: r264147
2018-09-02c-common.c (braced_list_to_string): Remove eval parameter.Bernd Edlinger1-37/+30
* c-common.c (braced_list_to_string): Remove eval parameter. Add some more checks. Always create zero-terminated STRING_CST. * c-common.h (braced_list_to_string): Adjust prototype. * c-decl.c (finish_decl): Call braced_list_to_string here ... * c-parser.c (c_parser_declaration_or_fndef): ... instead of here. * decl.c (eval_check_narrowing): Remove. (check_initializer): Move call to braced_list_to_string from here ... * typeck2.c (store_init_value): ... to here. (digest_init_r): Remove handing of signed/unsigned char strings. * c-c++-common/array-init.c: New test. * g++.dg/init/string2.C: Remove xfail. From-SVN: r264042
2018-08-27Less verbose fix-it hints for missing header files (PR 87091)David Malcolm1-5/+38
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
2018-08-27Come up with fndecl_built_in_p.Martin Liska1-5/+3
2018-08-27 Martin Liska <mliska@suse.cz> * builtins.h (is_builtin_fn): Remove and fndecl_built_in_p. * builtins.c (is_builtin_fn): Likewise. * attribs.c (diag_attr_exclusions): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (builtin_mathfn_code): Likewise. (fold_builtin_expect): Likewise. (fold_call_expr): Likewise. (fold_builtin_call_array): Likewise. (fold_call_stmt): Likewise. (set_builtin_user_assembler_name): Likewise. (is_simple_builtin): Likewise. * calls.c (gimple_alloca_call_p): Likewise. (maybe_warn_nonstring_arg): Likewise. * cfgexpand.c (expand_call_stmt): Likewise. * cgraph.c (cgraph_update_edges_for_call_stmt_node): Likewise. (cgraph_edge::verify_corresponds_to_fndecl): Likewise. (cgraph_node::verify_node): Likewise. * cgraphclones.c (build_function_decl_skip_args): Likewise. (cgraph_node::create_clone): Likewise. * config/arm/arm.c (arm_insert_attributes): Likewise. * config/i386/i386.c (ix86_gimple_fold_builtin): Likewise. * dse.c (scan_insn): Likewise. * expr.c (expand_expr_real_1): Likewise. * fold-const.c (operand_equal_p): Likewise. (fold_binary_loc): Likewise. * gimple-fold.c (gimple_fold_stmt_to_constant_1): Likewise. * gimple-low.c (lower_stmt): Likewise. * gimple-pretty-print.c (dump_gimple_call): Likewise. * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Likewise. * gimple.c (gimple_build_call_from_tree): Likewise. (gimple_call_builtin_p): Likewise. (gimple_call_combined_fn): Likewise. * gimplify.c (gimplify_call_expr): Likewise. (gimple_boolify): Likewise. (gimplify_modify_expr): Likewise. (gimplify_addr_expr): Likewise. * hsa-gen.c (gen_hsa_insns_for_call): Likewise. * ipa-cp.c (determine_versionability): Likewise. * ipa-fnsummary.c (compute_fn_summary): Likewise. * ipa-param-manipulation.c (ipa_modify_formal_parameters): Likewise. * ipa-split.c (visit_bb): Likewise. (split_function): Likewise. * ipa-visibility.c (cgraph_externally_visible_p): Likewise. * lto-cgraph.c (input_node): Likewise. * lto-streamer-out.c (write_symbol): Likewise. * omp-low.c (setjmp_or_longjmp_p): Likewise. (lower_omp_1): Likewise. * predict.c (strip_predict_hints): Likewise. * print-tree.c (print_node): Likewise. * symtab.c (symtab_node::output_to_lto_symbol_table_p): Likewise. * trans-mem.c (is_tm_irrevocable): Likewise. (is_tm_load): Likewise. (is_tm_simple_load): Likewise. (is_tm_store): Likewise. (is_tm_simple_store): Likewise. (is_tm_abort): Likewise. (tm_region_init_1): Likewise. * tree-call-cdce.c (gen_shrink_wrap_conditions): Likewise. * tree-cfg.c (verify_gimple_call): Likewise. (move_stmt_r): Likewise. (stmt_can_terminate_bb_p): Likewise. * tree-eh.c (lower_eh_constructs_2): Likewise. * tree-if-conv.c (if_convertible_stmt_p): Likewise. * tree-inline.c (remap_gimple_stmt): Likewise. (copy_bb): Likewise. (estimate_num_insns): Likewise. (fold_marked_statements): Likewise. * tree-sra.c (scan_function): Likewise. * tree-ssa-ccp.c (surely_varying_stmt_p): Likewise. (optimize_stack_restore): Likewise. (pass_fold_builtins::execute): Likewise. * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise. (mark_all_reaching_defs_necessary_1): Likewise. * tree-ssa-dom.c (dom_opt_dom_walker::optimize_stmt): Likewise. * tree-ssa-forwprop.c (simplify_builtin_call): Likewise. (pass_forwprop::execute): Likewise. * tree-ssa-loop-im.c (stmt_cost): Likewise. * tree-ssa-math-opts.c (pass_cse_reciprocals::execute): Likewise. * tree-ssa-sccvn.c (fully_constant_vn_reference_p): Likewise. * tree-ssa-strlen.c (get_string_length): Likewise. * tree-ssa-structalias.c (handle_lhs_call): Likewise. (find_func_aliases_for_call): Likewise. * tree-ssa-ter.c (find_replaceable_in_bb): Likewise. * tree-stdarg.c (optimize_va_list_gpr_fpr_size): Likewise. * tree-tailcall.c (find_tail_calls): Likewise. * tree.c (need_assembler_name_p): Likewise. (free_lang_data_in_decl): Likewise. (get_call_combined_fn): Likewise. * ubsan.c (is_ubsan_builtin_p): Likewise. * varasm.c (incorporeal_function_p): Likewise. * tree.h (DECL_BUILT_IN): Remove and replace with fndecl_built_in_p. (DECL_BUILT_IN_P): Transfort to fndecl_built_in_p. (fndecl_built_in_p): New. 2018-08-27 Martin Liska <mliska@suse.cz> * gcc-interface/decl.c (update_profile): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. * gcc-interface/gigi.h (call_is_atomic_load): Likewise. * gcc-interface/utils.c (gnat_pushdecl): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * c-common.c (check_function_restrict): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (check_builtin_function_arguments): Likewise. (reject_gcc_builtin): Likewise. * c-warn.c (sizeof_pointer_memaccess_warning): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * c-decl.c (locate_old_decl): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (diagnose_mismatched_decls): Likewise. (merge_decls): Likewise. (warn_if_shadowing): Likewise. (pushdecl): Likewise. (implicitly_declare): Likewise. * c-parser.c (c_parser_postfix_expression_after_primary): Likewise. * c-tree.h (C_DECL_ISNT_PROTOTYPE): Likewise. * c-typeck.c (build_function_call_vec): Likewise. (convert_arguments): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * call.c (build_call_a): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (build_cxx_call): Likewise. * constexpr.c (constexpr_fn_retval): Likewise. (cxx_eval_builtin_function_call): Likewise. (cxx_eval_call_expression): Likewise. (potential_constant_expression_1): Likewise. * cp-gimplify.c (cp_gimplify_expr): Likewise. (cp_fold): Likewise. * decl.c (decls_match): Likewise. (validate_constexpr_redeclaration): Likewise. (duplicate_decls): Likewise. (make_rtl_for_nonlocal_decl): Likewise. * name-lookup.c (consider_binding_level): Likewise. (cp_emit_debug_info_for_using): Likewise. * semantics.c (finish_call_expr): Likewise. * tree.c (builtin_valid_in_constant_expr_p): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * go-gcc.cc (Gcc_backend::call_expression): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. 2018-08-27 Martin Liska <mliska@suse.cz> * lto-lang.c (handle_const_attribute): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. * lto-symtab.c (lto_symtab_merge_p): Likewise. (lto_symtab_merge_decls_1): Likewise. (lto_symtab_merge_symbols): Likewise. * lto.c (lto_maybe_register_decl): Likewise. (read_cgraph_and_symbols): Likewise. From-SVN: r263880
2018-08-16-Wmisleading-indentation: fix ICE in get_visual_column (PR c++/70693)David Malcolm1-0/+1
PR c++/70693 reports a crash within -Wmisleading-indentation in get_visual_column, reading past the end of a source line. The issue occurs due to a stray carriage return aka '\r' aka ^M, occurring towards the end of line 35 of attachment 38289 - but not at the end itself. This carriage return confuses our line numbering: from that point in the file, the lexer (and thus location_t values) use line numbers that are one larger than those seen by input.c, "cat -n" and emacs. This discrepancy between the lexer's line numbering and input.c's line numbering leads to an out-of-range read in get_visual_column (trying to read column 8, to locate the first non-whitespace on the line containing "break;", but finding the next line, which is only 4 characters long). This patch fixes the ICE by adding a range check to get_visual_column before accessing the input.c line buffer. This is arguably papering over the root cause, but there are presumably other ways of triggering such an out-of-range read by writing to the source file after the lexer but before -Wmisleading-indentation, and we ought to be not ICE in the face of that. gcc/c-family/ChangeLog: PR c++/70693 * c-common.c (selftest::c_family_tests): Call selftest::c_indentation_c_tests. * c-common.h (selftest::c_indentation_c_tests): New decl. * c-indentation.c: Include "selftest.h". (next_tab_stop): Add "tab_width" param, rather than accessing cpp_opts. (get_visual_column): Likewise. Clarify comment. Bulletproof against reading past the end of the line. (get_first_nws_vis_column): Add "tab_width" param. (detect_intervening_unindent): Likewise. (should_warn_for_misleading_indentation): Read tab width from cpp_opts and pass around. (selftest::test_next_tab_stop): New test. (selftest::assert_get_visual_column_succeeds): New function. (ASSERT_GET_VISUAL_COLUMN_SUCCEEDS): New macro. (selftest::assert_get_visual_column_fails): New function. (ASSERT_GET_VISUAL_COLUMN_FAILS): New macro. (selftest::test_get_visual_column): New test. (selftest::c_indentation_c_tests): New function. gcc/testsuite/ChangeLog: PR c++/70693 * c-c++-common/Wmisleading-indentation-pr70693.c: New test. From-SVN: r263595
2018-08-13PR tree-optimization/71625 - missing strlen optimization on different array ↵Martin Sebor1-0/+92
initialization style gcc/c/ChangeLog: PR tree-optimization/71625 * c-parser.c (c_parser_declaration_or_fndef): Call braced_list_to_string. gcc/c-family/ChangeLog: PR tree-optimization/71625 * c-common.c (braced_list_to_string): New function. * c-common.h (braced_list_to_string): Declare it. gcc/cp/ChangeLog: PR tree-optimization/71625 * decl.c (check_initializer): Call braced_list_to_string. (eval_check_narrowing): New function. * gcc/cp/typeck2.c (digest_init_r): Accept strings literals as initilizers for all narrow character types. gcc/testsuite/ChangeLog: PR tree-optimization/71625 * g++.dg/init/string2.C: New test. * g++.dg/init/string3.C: New test. * g++.dg/init/string4.C: New test. * gcc.dg/init-string-3.c: New test. * gcc.dg/strlenopt-55.c: New test. * gcc.dg/strlenopt-56.c: New test. From-SVN: r263511
2018-08-08[PATCH] line-map include-from representationNathan Sidwell1-2/+2
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
2018-07-31Add __builtin_speculation_safe_valueRichard Earnshaw1-0/+164
This patch defines a new intrinsic function __builtin_speculation_safe_value. A generic default implementation is defined which will attempt to use the backend pattern "speculation_safe_barrier". If this pattern is not defined, or if it is not available, then the compiler will emit a warning, but compilation will continue. Note that the test spec-barrier-1.c will currently fail on all targets. This is deliberate, the failure will go away when appropriate action is taken for each target backend. gcc: * builtin-types.def (BT_FN_PTR_PTR_VAR): New function type. (BT_FN_I1_I1_VAR, BT_FN_I2_I2_VAR, BT_FN_I4_I4_VAR): Likewise. (BT_FN_I8_I8_VAR, BT_FN_I16_I16_VAR): Likewise. * builtin-attrs.def (ATTR_NOVOPS_NOTHROW_LEAF_LIST): New attribute list. * builtins.def (BUILT_IN_SPECULATION_SAFE_VALUE_N): New builtin. (BUILT_IN_SPECULATION_SAFE_VALUE_PTR): New internal builtin. (BUILT_IN_SPECULATION_SAFE_VALUE_1): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_2): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_4): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_8): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_16): Likewise. * builtins.c (expand_speculation_safe_value): New function. (expand_builtin): Call it. * doc/cpp.texi: Document predefine __HAVE_SPECULATION_SAFE_VALUE. * doc/extend.texi: Document __builtin_speculation_safe_value. * doc/md.texi: Document "speculation_barrier" pattern. * doc/tm.texi.in: Pull in TARGET_SPECULATION_SAFE_VALUE and TARGET_HAVE_SPECULATION_SAFE_VALUE. * doc/tm.texi: Regenerated. * target.def (have_speculation_safe_value, speculation_safe_value): New hooks. * targhooks.c (default_have_speculation_safe_value): New function. (default_speculation_safe_value): New function. * targhooks.h (default_have_speculation_safe_value): Add prototype. (default_speculation_safe_value): Add prototype. c-family: * c-common.c (speculation_safe_resolve_call): New function. (speculation_safe_resolve_params): New function. (speculation_safe_resolve_return): New function. (resolve_overloaded_builtin): Handle __builtin_speculation_safe_value. * c-cppbuiltin.c (c_cpp_builtins): Add pre-define for __HAVE_SPECULATION_SAFE_VALUE. testsuite: * c-c++-common/spec-barrier-1.c: New test. * c-c++-common/spec-barrier-2.c: New test. * gcc.dg/spec-barrier-3.c: New test. From-SVN: r263168
2018-07-20libcpp: remove redundant parameter from rich_location::set_rangeDavid Malcolm1-2/+2
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
2018-06-20re PR c++/86210 (Missing -Wnonnull warning for function defined in the same TU)Jakub Jelinek1-4/+2
PR c++/86210 * c-common.c (check_nonnull_arg): Use fold_for_warn. Adjust obsolete comment. * g++.dg/warn/Wnonnull4.C: New test. From-SVN: r261811
2018-06-16re PR tree-optimization/64946 ([AArch64] ↵Kugan Vivekanandarajah1-0/+1
gcc.target/aarch64/vect-abs-compile.c - "abs" vectorization fails for char/short types) gcc/ChangeLog: 2018-06-16 Kugan Vivekanandarajah <kuganv@linaro.org> PR middle-end/64946 * cfgexpand.c (expand_debug_expr): Hande ABSU_EXPR. * config/i386/i386.c (ix86_add_stmt_cost): Likewise. * dojump.c (do_jump): Likewise. * expr.c (expand_expr_real_2): Check operand type's sign. * fold-const.c (const_unop): Handle ABSU_EXPR. (fold_abs_const): Likewise. * gimple-pretty-print.c (dump_unary_rhs): Likewise. * gimple-ssa-backprop.c (backprop::process_assign_use): Likesie. (strip_sign_op_1): Likesise. * match.pd: Add new pattern to generate ABSU_EXPR. * optabs-tree.c (optab_for_tree_code): Handle ABSU_EXPR. * tree-cfg.c (verify_gimple_assign_unary): Likewise. * tree-eh.c (operation_could_trap_helper_p): Likewise. * tree-inline.c (estimate_operator_cost): Likewise. * tree-pretty-print.c (dump_generic_node): Likewise. * tree-vect-patterns.c (vect_recog_sad_pattern): Likewise. * tree.def (ABSU_EXPR): New. gcc/c-family/ChangeLog: 2018-06-16 Kugan Vivekanandarajah <kuganv@linaro.org> * c-common.c (c_common_truthvalue_conversion): Handle ABSU_EXPR. gcc/c/ChangeLog: 2018-06-16 Kugan Vivekanandarajah <kuganv@linaro.org> * c-typeck.c (build_unary_op): Handle ABSU_EXPR; * gimple-parser.c (c_parser_gimple_statement): Likewise. (c_parser_gimple_unary_expression): Likewise. gcc/cp/ChangeLog: 2018-06-16 Kugan Vivekanandarajah <kuganv@linaro.org> * constexpr.c (potential_constant_expression_1): Handle ABSU_EXPR. * cp-gimplify.c (cp_fold): Likewise. gcc/testsuite/ChangeLog: 2018-06-16 Kugan Vivekanandarajah <kuganv@linaro.org> PR middle-end/64946 * gcc.dg/absu.c: New test. * gcc.dg/gimplefe-29.c: New test. * gcc.target/aarch64/pr64946.c: New test. From-SVN: r261681
2018-05-14pt.c (tsubst): Check valid_array_size_p.Jason Merrill1-5/+8
* pt.c (tsubst) [ARRAY_TYPE]: Check valid_array_size_p. (tsubst_copy_and_build) [NEW_EXPR]: Clear in_decl. gcc/c-family/ * c-common.c (valid_array_size_p): Add complain parameter. * c-common.h: ...which defaults to true. From-SVN: r260227
2018-05-10re PR c++/85662 ("error: non-constant condition for static assertion" from ↵Jakub Jelinek1-15/+9
__builtin_offsetof in C++) PR c++/85662 * c-common.h (fold_offsetof_1): Removed. (fold_offsetof): Add TYPE argument defaulted to size_type_node and CTX argument defaulted to ERROR_MARK. * c-common.c (fold_offsetof_1): Renamed to ... (fold_offsetof): ... this. Remove wrapper function. Add TYPE argument, convert the pointer constant to TYPE and use size_binop with PLUS_EXPR instead of fold_build_pointer_plus if type is not a pointer type. Adjust recursive calls. * c-fold.c (c_fully_fold_internal): Use fold_offsetof rather than fold_offsetof_1, pass TREE_TYPE (expr) as TYPE to it and drop the fold_convert_loc. * c-typeck.c (build_unary_op): Use fold_offsetof rather than fold_offsetof_1, pass argtype as TYPE to it and drop the fold_convert_loc. * cp-gimplify.c (cp_fold): Use fold_offsetof rather than fold_offsetof_1, pass TREE_TYPE (x) as TYPE to it and drop the fold_convert. * g++.dg/ext/offsetof2.C: New test. From-SVN: r260119
2018-03-27re PR c++/85061 (ICE with __builtin_offsetof applied to static member)Jakub Jelinek1-1/+1
PR c++/85061 * c-common.c (fold_offsetof_1) <case COMPOUND_EXPR>: Assert that get_base_address of the second operand is a VAR_P, rather than the operand itself, and use gcc_checking_assert instead of gcc_assert. * g++.dg/ext/builtin-offsetof3.C: New test. From-SVN: r258902
2018-03-12PR tree-optimization/83456 - -Wrestrict false positive on a non-overlapping ↵Martin Sebor1-11/+21
memcpy in an inline function gcc/ChangeLog: PR tree-optimization/83456 * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning for perfectly overlapping calls to memcpy. (gimple_fold_builtin_memory_chk): Same. (gimple_fold_builtin_strcpy): Handle no-warning. (gimple_fold_builtin_stxcpy_chk): Same. * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning. gcc/c-family/ChangeLog: PR tree-optimization/83456 * gcc/c-family/c-common.c (check_function_restrict): Return bool. Restore checking of bounded built-in functions. (check_function_arguments): Also return the result of warn_for_restrict. * gcc/c-family/c-common.c (check_function_restrict): Return bool. * gcc/c-family/c-warn.c (warn_for_restrict): Return bool. gcc/testsuite/ChangeLog: PR tree-optimization/83456 * c-c++-common/Wrestrict-2.c: Remove test cases. * c-c++-common/Wrestrict.c: Same. * gcc.dg/Wrestrict-12.c: New test. * gcc.dg/Wrestrict-14.c: New test. From-SVN: r258455
2018-01-17C++: Fix crash in warn_for_memset within templates (PR c++/83814)David Malcolm1-13/+0
gcc/c-family/ChangeLog: PR c++/83814 * c-common.c (fold_for_warn): Move to c/c-fold.c and cp/expr.c. gcc/c/ChangeLog: PR c++/83814 * c-fold.c (fold_for_warn): Move from c-common.c, reducing to just the C part. gcc/cp/ChangeLog: PR c++/83814 * expr.c (fold_for_warn): Move from c-common.c, reducing to just the C++ part. If processing a template, call fold_non_dependent_expr rather than fully folding. gcc/testsuite/ChangeLog: PR c++/83814 PR c++/83902 * g++.dg/wrappers/pr83814.C: New test case. * g++.dg/wrappers/pr83902.C: New test case. From-SVN: r256804
2018-01-10Preserving locations for variable-uses and constants (PR c++/43486)David Malcolm1-9/+30
This patch implements location wrapper nodes, preserving source locations of the uses of variables and constants in various places in the C++ frontend: at the arguments at callsites, and for typeid, alignof, sizeof, and offsetof. For example, it allows the C++ FE to underline the pertinent argument for mismatching calls, for such expressions, improving: extern int callee (int one, const char *two, float three); int caller (int first, int second, float third) { return callee (first, second, third); } from test.cc: In function 'int caller(int, int, float)': test.cc:5:38: error: invalid conversion from 'int' to 'const char*' [-fpermissive] return callee (first, second, third); ^ test.cc:1:41: note: initializing argument 2 of 'int callee(int, const char*, float)' extern int callee (int one, const char *two, float three); ~~~~~~~~~~~~^~~ to: test.cc: In function 'int caller(int, int, float)': test.cc:5:25: error: invalid conversion from 'int' to 'const char*' [-fpermissive] return callee (first, second, third); ^~~~~~ test.cc:1:41: note: initializing argument 2 of 'int callee(int, const char*, float)' extern int callee (int one, const char *two, float three); ~~~~~~~~~~~~^~~ This is the combination of the following patches: "[PATCH 01/14] C++: preserve locations within build_address" https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00883.html "[PATCH v2.4 of 02/14] Support for adding and stripping location_t wrapper nodes" https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00591.html "[PATCH] Eliminate location wrappers in tree_nop_conversion/STRIP_NOPS" https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01330.html "[PATCH v4 of 03/14] C++: add location_t wrapper nodes during parsing (minimal impl)" https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00660.html "[PATCH 04/14] Update testsuite to show improvements" https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00891.html "[v3 of 05/14] C++: handle locations wrappers when calling warn_for_memset" https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01378.html "[PATCH 07/14] reject_gcc_builtin: strip any location wrappers" https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00886.html "[v3 of PATCH 08/14] cp/tree.c: strip location wrappers in lvalue_kind" https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01433.html "[PATCH 09/14] Strip location wrappers in null_ptr_cst_p" https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00888.html "[PATCH 11/14] Handle location wrappers in string_conv_p" https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00890.html "[PATCH 12/14] C++: introduce null_node_p" https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00894.html "[v3 of PATCH 13/14] c-format.c: handle location wrappers" https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01494.html "[PATCH 14/14] pp_c_cast_expression: don't print casts for location wrappers" https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00893.html "[v3 of PATCH 15/14] Use fold_for_warn in get_atomic_generic_size" https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01380.html "[PATCH] Add selftest for "fold_for_warn (error_mark_node)"" https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01385.html gcc/c-family/ChangeLog: PR c++/43486 * c-common.c: Include "selftest.h". (get_atomic_generic_size): Perform the test for integral type before the range test for any integer constant, fixing indentation of braces. Call fold_for_warn before testing for an INTEGER_CST. (reject_gcc_builtin): Strip any location wrapper from EXPR. (selftest::test_fold_for_warn): New function. (selftest::c_common_c_tests): New function. (selftest::c_family_tests): Call it, and selftest::c_pretty_print_c_tests. * c-common.h (selftest::c_pretty_print_c_tests): New decl. * c-format.c (check_format_arg): Convert VAR_P check to a fold_for_warn. * c-pretty-print.c: Include "selftest.h". (pp_c_cast_expression): Don't print casts for location wrappers. (selftest::assert_c_pretty_printer_output): New function. (ASSERT_C_PRETTY_PRINTER_OUTPUT): New macro. (selftest::test_location_wrappers): New function. (selftest::c_pretty_print_c_tests): New function. * c-warn.c (warn_for_memset): Call fold_for_warn on the arguments. gcc/cp/ChangeLog: PR c++/43486 * call.c (null_ptr_cst_p): Strip location wrappers when converting from '0' to a pointer type in C++11 onwards. (conversion_null_warnings): Replace comparison with null_node with call to null_node_p. (build_over_call): Likewise. * cp-gimplify.c (cp_fold): Remove the early bailout when processing_template_decl. * cp-lang.c (selftest::run_cp_tests): Call selftest::cp_pt_c_tests and selftest::cp_tree_c_tests. * cp-tree.h (cp_expr::maybe_add_location_wrapper): New method. (selftest::run_cp_tests): Move decl to bottom of file. (null_node_p): New inline function. (selftest::cp_pt_c_tests): New decl. (selftest::cp_tree_c_tests): New decl. * cvt.c (build_expr_type_conversion): Replace comparison with null_node with call to null_node_p. * error.c (args_to_string): Likewise. * except.c (build_throw): Likewise. * mangle.c (write_expression): Skip location wrapper nodes. * parser.c (literal_integer_zerop): New function. (cp_parser_postfix_expression): Call maybe_add_location_wrapper on the result for RID_TYPEID. Pass true for new "wrap_locations_p" param of cp_parser_parenthesized_expression_list. When calling warn_for_memset, replace integer_zerop calls with literal_integer_zerop, eliminating the double logical negation cast to bool. Eliminate the special-casing for CONST_DECL in favor of the fold_for_warn within warn_for_memset. (cp_parser_parenthesized_expression_list): Add "wrap_locations_p" param, defaulting to false. Convert "expr" to a cp_expr, and call maybe_add_location_wrapper on it when wrap_locations_p is true. (cp_parser_unary_expression): Call maybe_add_location_wrapper on the result for RID_ALIGNOF and RID_SIZEOF. (cp_parser_builtin_offsetof): Likewise. * pt.c: Include "selftest.h". (tsubst_copy): Handle location wrappers. (tsubst_copy_and_build): Likewise. (build_non_dependent_expr): Likewise. (selftest::test_build_non_dependent_expr): New function. (selftest::cp_pt_c_tests): New function. * tree.c: Include "selftest.h". (lvalue_kind): Handle VIEW_CONVERT_EXPR location wrapper nodes. (selftest::test_lvalue_kind): New function. (selftest::cp_tree_c_tests): New function. * typeck.c (string_conv_p): Strip any location wrapper from "exp". (cp_build_binary_op): Replace comparison with null_node with call to null_node_p. (build_address): Use location of operand when building address expression. gcc/testsuite/ChangeLog: PR c++/43486 * g++.dg/diagnostic/param-type-mismatch.C: Update expected results to reflect that the arguments are correctly underlined. * g++.dg/plugin/diagnostic-test-expressions-1.C: Add test coverage for globals, params, locals and literals. (test_sizeof): Directly test the location of "sizeof", rather than when used in compound expressions. (test_alignof): Likewise for "alignof". (test_string_literals): Likewise for string literals. (test_numeric_literals): Likewise for numeric literals. (test_builtin_offsetof): Likewise for "__builtin_offsetof". (test_typeid): Likewise for typeid. (test_unary_plus): New. * g++.dg/warn/Wformat-1.C: Add tests of pointer arithmetic on format strings. gcc/ChangeLog: PR c++/43486 * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of "public_flag". * tree.c (tree_nop_conversion): Return true for location wrapper nodes. (maybe_wrap_with_location): New function. (selftest::check_strip_nops): New function. (selftest::test_location_wrappers): New function. (selftest::tree_c_tests): Call it. * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro. (maybe_wrap_with_location): New decl. (EXPR_LOCATION_WRAPPER_P): New macro. (location_wrapper_p): New inline function. (tree_strip_any_location_wrapper): New inline function. From-SVN: r256448
2018-01-03Add support for MODE_VECTOR_BOOLRichard Sandiford1-0/+8
This patch adds a new mode class to represent vectors of booleans. GET_MODE_BITSIZE (m) / GET_MODE_NUNITS (m) determines the number of bits that are used to represent each boolean; this can be 1 for a fully-packed representation or greater than 1 for an unpacked representation. In the latter case, the value of bits other than the lowest is not significant. These are used by the SVE port to represent predicates. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * mode-classes.def (MODE_VECTOR_BOOL): New mode class. * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true for MODE_VECTOR_BOOL. * machmode.def (VECTOR_BOOL_MODE): Document. * genmodes.c (VECTOR_BOOL_MODE): New macro. (make_vector_bool_mode): New function. (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle MODE_VECTOR_BOOL. * lto-streamer-in.c (lto_input_mode_table): Likewise. * rtx-vector-builder.c (rtx_vector_builder::find_cached_value): Likewise. * stor-layout.c (int_mode_for_mode): Likewise. * tree.c (build_vector_type_for_mode): Likewise. * varasm.c (output_constant_pool_2): Likewise. * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and CONSTM1_RTX (BImode) are the same thing. Initialize const_tiny_rtx for MODE_VECTOR_BOOL. * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list of mode class checks. * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P instead of a list of mode class checks. (expand_vector_scalar_condition): Likewise. (type_for_widest_vector_mode): Handle BImode as an inner mode. gcc/c-family/ * c-common.c (c_common_type_for_mode): Handle MODE_VECTOR_BOOL. gcc/fortran/ * trans-types.c (gfc_type_for_mode): Handle MODE_VECTOR_BOOL. gcc/go/ * go-lang.c (go_langhook_type_for_mode): Handle MODE_VECTOR_BOOL. gcc/lto/ * lto-lang.c (lto_type_for_mode): Handle MODE_VECTOR_BOOL. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r256202
2018-01-03poly_int: TYPE_VECTOR_SUBPARTSRichard Sandiford1-9/+11
This patch changes TYPE_VECTOR_SUBPARTS to a poly_uint64. The value is encoded in the 10-bit precision field and was previously always stored as a simple log2 value. The challenge was to use this 10 bits to encode the number of elements in variable-length vectors, so that we didn't need to increase the size of the tree. In practice the number of vector elements should always have the form N + N * X (where X is the runtime value), and as for constant-length vectors, N must be a power of 2 (even though X itself might not be). The patch therefore uses the low 8 bits to encode log2(N) and bit 8 to select between constant-length and variable-length vectors. Targets without variable-length vectors continue to use the old scheme. A new valid_vector_subparts_p function tests whether a given number of elements can be encoded. This is false for the vector modes that represent an LD3 or ST3 vector triple (which we want to treat as arrays of vectors rather than single vectors). Most of the patch is mechanical; previous patches handled the changes that weren't entirely straightforward. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle polynomial numbers of units. (SET_TYPE_VECTOR_SUBPARTS): Likewise. (valid_vector_subparts_p): New function. (build_vector_type): Remove temporary shim and take the number of units as a poly_uint64 rather than an int. (build_opaque_vector_type): Take the number of units as a poly_uint64 rather than an int. * tree.c (build_vector_from_ctor): Handle polynomial TYPE_VECTOR_SUBPARTS. (type_hash_canon_hash, type_cache_hasher::equal): Likewise. (uniform_vector_p, vector_type_mode, build_vector): Likewise. (build_vector_from_val): If the number of units is variable, use build_vec_duplicate_cst for constant operands and VEC_DUPLICATE_EXPR otherwise. (make_vector_type): Remove temporary is_constant (). (build_vector_type, build_opaque_vector_type): Take the number of units as a poly_uint64 rather than an int. (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS. * cfgexpand.c (expand_debug_expr): Likewise. * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise. (store_constructor, expand_expr_real_1): Likewise. (const_scalar_mask_from_tree): Likewise. * fold-const-call.c (fold_const_reduction): Likewise. * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise. (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise. (native_encode_vector, vec_cst_ctor_to_array): Likewise. (fold_relational_const): Likewise. (native_interpret_vector): Likewise. Change the size from an int to an unsigned int. * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial TYPE_VECTOR_SUBPARTS. (gimple_fold_indirect_ref, gimple_build_vector): Likewise. (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when duplicating a non-constant operand into a variable-length vector. * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS. * ipa-icf.c (sem_variable::equals): Likewise. * match.pd: Likewise. * omp-simd-clone.c (simd_clone_subparts): Likewise. * print-tree.c (print_node): Likewise. * stor-layout.c (layout_type): Likewise. * targhooks.c (default_builtin_vectorization_cost): Likewise. * tree-cfg.c (verify_gimple_comparison): Likewise. (verify_gimple_assign_binary): Likewise. (verify_gimple_assign_ternary): Likewise. (verify_gimple_assign_single): Likewise. * tree-pretty-print.c (dump_generic_node): Likewise. * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise. (simplify_bitfield_ref, is_combined_permutation_identity): Likewise. * tree-vect-data-refs.c (vect_permute_store_chain): Likewise. (vect_grouped_load_supported, vect_permute_load_chain): Likewise. (vect_shift_permute_load_chain): Likewise. * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise. (expand_vector_condition, optimize_vector_constructor): Likewise. (lower_vec_perm, get_compute_type): Likewise. * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise. (get_initial_defs_for_reduction, vect_transform_loop): Likewise. * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise. (vect_recog_mask_conversion_pattern): Likewise. * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise. (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise. * tree-vect-stmts.c (perm_mask_for_reverse): Likewise. (get_group_load_store_type, vectorizable_mask_load_store): Likewise. (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment) (vectorizable_shift, vectorizable_operation, vectorizable_store) (vectorizable_load, vect_is_simple_cond, vectorizable_comparison) (supportable_widening_operation): Likewise. (supportable_narrowing_operation): Likewise. * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts): Likewise. * varasm.c (output_constant): Likewise. gcc/ada/ * gcc-interface/utils.c (gnat_types_compatible_p): Handle polynomial TYPE_VECTOR_SUBPARTS. gcc/brig/ * brigfrontend/brig-to-generic.cc (get_unsigned_int_type): Handle polynomial TYPE_VECTOR_SUBPARTS. * brigfrontend/brig-util.h (gccbrig_type_vector_subparts): Likewise. gcc/c-family/ * c-common.c (vector_types_convertible_p, c_build_vec_perm_expr) (convert_vector_to_array_for_subscript): Handle polynomial TYPE_VECTOR_SUBPARTS. (c_common_type_for_mode): Check valid_vector_subparts_p. * c-pretty-print.c (pp_c_initializer_list): Handle polynomial VECTOR_CST_NELTS. gcc/c/ * c-typeck.c (comptypes_internal, build_binary_op): Handle polynomial TYPE_VECTOR_SUBPARTS. gcc/cp/ * constexpr.c (cxx_eval_array_reference): Handle polynomial VECTOR_CST_NELTS. (cxx_fold_indirect_ref): Handle polynomial TYPE_VECTOR_SUBPARTS. * call.c (build_conditional_expr_1): Likewise. * decl.c (cp_finish_decomp): Likewise. * mangle.c (write_type): Likewise. * typeck.c (structural_comptypes): Likewise. (cp_build_binary_op): Likewise. * typeck2.c (process_init_constructor_array): Likewise. gcc/fortran/ * trans-types.c (gfc_type_for_mode): Check valid_vector_subparts_p. gcc/lto/ * lto-lang.c (lto_type_for_mode): Check valid_vector_subparts_p. * lto.c (hash_canonical_type): Handle polynomial TYPE_VECTOR_SUBPARTS. gcc/go/ * go-lang.c (go_langhook_type_for_mode): Check valid_vector_subparts_p. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r256197
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2017-12-16PR tree-optimization/78918 - missing -Wrestrict on memcpy copying over selfMartin Sebor1-6/+12
gcc/c-family/ChangeLog: PR tree-optimization/78918 * c-common.c (check_function_restrict): Avoid checking built-ins. * c.opt (-Wrestrict): Include in -Wall. gcc/ChangeLog: PR tree-optimization/78918 * Makefile.in (OBJS): Add gimple-ssa-warn-restrict.o. * builtins.c (check_sizes): Rename... (check_access): ...to this. Rename function arguments for clarity. (check_memop_sizes): Adjust names. (expand_builtin_memchr, expand_builtin_memcpy): Same. (expand_builtin_memmove, expand_builtin_mempcpy): Same. (expand_builtin_strcat, expand_builtin_stpncpy): Same. (check_strncat_sizes, expand_builtin_strncat): Same. (expand_builtin_strncpy, expand_builtin_memset): Same. (expand_builtin_bzero, expand_builtin_memcmp): Same. (expand_builtin_memory_chk, maybe_emit_chk_warning): Same. (maybe_emit_sprintf_chk_warning): Same. (expand_builtin_strcpy): Adjust. (expand_builtin_stpcpy): Same. (expand_builtin_with_bounds): Detect out-of-bounds accesses in pointer-checking forms of memcpy, memmove, and mempcpy. (gcall_to_tree_minimal, max_object_size): Define new functions. * builtins.h (max_object_size): Declare. * calls.c (alloc_max_size): Call max_object_size instead of hardcoding ssizetype limit. (get_size_range): Handle new argument. * calls.h (get_size_range): Add a new argument. * cfgexpand.c (expand_call_stmt): Propagate no-warning bit. * doc/invoke.texi (-Wrestrict): Adjust, add example. * gimple-fold.c (gimple_fold_builtin_memory_op): Detect overlapping operations. (gimple_fold_builtin_memory_chk): Same. (gimple_fold_builtin_stxcpy_chk): New function. * gimple-ssa-warn-restrict.c: New source. * gimple-ssa-warn-restrict.h: New header. * gimple.c (gimple_build_call_from_tree): Propagate location. * passes.def (pass_warn_restrict): Add new pass. * tree-pass.h (make_pass_warn_restrict): Declare. * tree-ssa-strlen.c (handle_builtin_strcpy): Detect overlapping operations. (handle_builtin_strcat): Same. (strlen_optimize_stmt): Rename... (strlen_check_and_optimize_stmt): ...to this. Handle strncat, stpncpy, strncpy, and their checking forms. gcc/testsuite/ChangeLog: PR tree-optimization/78918 * c-c++-common/Warray-bounds.c: New test. * c-c++-common/Warray-bounds-2.c: New test. * c-c++-common/Warray-bounds-3.c: New test. * c-c++-common/Warray-bounds-4.c: New test. * c-c++-common/Warray-bounds-5.c: New test. * c-c++-common/Wrestrict-2.c: New test. * c-c++-common/Wrestrict.c: New test. * c-c++-common/Wrestrict.s: New test. * c-c++-common/Wsizeof-pointer-memaccess1.c: Adjust * c-c++-common/Wsizeof-pointer-memaccess2.c: Same. * g++.dg/torture/Wsizeof-pointer-memaccess1.C: Same. * g++.dg/torture/Wsizeof-pointer-memaccess2.C: Same. * gcc.dg/range.h: New header. * gcc.dg/memcpy-6.c: New test. * gcc.dg/pr69172.c: Adjust. * gcc.dg/pr79223.c: Same. * gcc.dg/pr81345.c: Adjust. * gcc.dg/Wobjsize-1.c: Same. * gcc.dg/Wrestrict-2.c: New test. * gcc.dg/Wrestrict.c: New test. * gcc.dg/Wsizeof-pointer-memaccess1.c: Adjust. * gcc.dg/builtin-stpncpy.c: Same. * gcc.dg/builtin-stringop-chk-1.c: Same. * gcc.target/i386/chkp-stropt-17.c: New test. * gcc.dg/torture/Wsizeof-pointer-memaccess1.c: Adjust. From-SVN: r255755
2017-12-06C/C++: don't suggest implementation names as spelling fixes (PR c/83236)David Malcolm1-0/+1
gcc/c-family/ChangeLog: PR c/83236 * c-common.c (selftest::c_family_tests): Call selftest::c_spellcheck_cc_tests. * c-common.h (selftest::c_spellcheck_cc_tests): New decl. * c-spellcheck.cc: Include "selftest.h". (name_reserved_for_implementation_p): New function. (should_suggest_as_macro_p): New function. (find_closest_macro_cpp_cb): Move the check for NT_MACRO to should_suggest_as_macro_p and call it. (selftest::test_name_reserved_for_implementation_p): New function. (selftest::c_spellcheck_cc_tests): New function. * c-spellcheck.h (name_reserved_for_implementation_p): New decl. gcc/c/ChangeLog: PR c/83236 * c-decl.c (lookup_name_fuzzy): Don't suggest names that are reserved for use by the implementation. gcc/cp/ChangeLog: PR c/83236 * name-lookup.c (consider_binding_level): Don't suggest names that are reserved for use by the implementation. gcc/testsuite/ChangeLog: PR c/83236 * c-c++-common/spellcheck-reserved.c: New test case. From-SVN: r255453
2017-11-28re PR sanitizer/81275 (-fsanitize=thread produce incorrect -Wreturn-type ↵Jakub Jelinek1-0/+58
warning) PR sanitizer/81275 * tree.c (block_may_fallthru): Return false if SWITCH_ALL_CASES_P is set on SWITCH_EXPR and !block_may_fallthru (SWITCH_BODY ()). c/ * c-typeck.c (c_finish_case): Set SWITCH_ALL_CASES_P if c_switch_covers_all_cases_p returns true. c-family/ * c-common.c (c_switch_covers_all_cases_p_1, c_switch_covers_all_cases_p): New functions. * c-common.h (c_switch_covers_all_cases_p): Declare. testsuite/ * c-c++-common/tsan/pr81275.c: New test. From-SVN: r255217
2017-11-28Remove Cilk Plus support.Julia Koval1-7/+0
* Makefile.def (target_modules): Remove libcilkrts. * Makefile.in: Ditto. * configure: Ditto. * configure.ac: Ditto. contrib/ * contrib/gcc_update: Ditto. gcc/ * Makefile.in (cilkplus.def, cilk-builtins.def, c-family/cilk.o, c-family/c-cilkplus.o, c-family/array-notation-common.o, cilk-common.o, cilk.h, cilk-common.c): Remove. * builtin-types.def (BT_FN_INT_PTR_PTR_PTR_FTYPE_BT_INT_BT_PTR_BT_PTR_BT_PTR): Remove. * builtins.c (is_builtin_name): Remove cilkplus condition. (BUILT_IN_CILK_DETACH, BUILT_IN_CILK_POP_FRAME): Remove. * builtins.def (DEF_CILK_BUILTIN_STUB, DEF_CILKPLUS_BUILTIN, cilk-builtins.def, cilkplus.def): Remove. * cif-code.def (CILK_SPAWN): Remove. * cilk-builtins.def: Delete. * cilk-common.c: Ditto. * cilk.h: Ditto. * cilkplus.def: Ditto. * config/darwin.h (fcilkplus): Delete. * cppbuiltin.c: Ditto. * doc/extend.texi: Remove cilkplus doc. * doc/generic.texi: Ditto. * doc/invoke.texi: Ditto. * doc/passes.texi: Ditto. * gcc.c (fcilkplus): Remove. * gengtype.c (cilk.h): Remove. * gimple-pretty-print.c (dump_gimple_omp_for): Remove cilkplus support. * gimple.h (GF_OMP_FOR_KIND_CILKFOR, GF_OMP_FOR_KIND_CILKSIMD): Remove. * gimplify.c (gimplify_return_expr, maybe_fold_stmt, gimplify_call_expr, is_gimple_stmt, gimplify_modify_expr, gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses, gimplify_omp_for, gimplify_expr): Remove cilkplus conditions. * ipa-fnsummary.c (ipa_dump_fn_summary, compute_fn_summary, inline_read_section): Ditto. * ipa-inline-analysis.c (cilk.h): Remove. * ira.c (ira_setup_eliminable_regset): Remove cilkplus support. * lto-wrapper.c (merge_and_complain, append_compiler_options, append_linker_options): Remove condition for fcilkplus. * lto/lto-lang.c (cilk.h): Remove. (lto_init): Remove condition for fcilkplus. * omp-expand.c (expand_cilk_for_call): Delete. (expand_omp_taskreg, expand_omp_for_static_chunk, expand_omp_for): Remove cilkplus conditions. (expand_cilk_for): Delete. * omp-general.c (omp_extract_for_data): Remove cilkplus support. * omp-low.c (scan_sharing_clauses, create_omp_child_function, execute_lower_omp, diagnose_sb_0): Ditto. * omp-simd-clone.c (simd_clone_clauses_extract): Ditto. * tree-core.h (OMP_CLAUSE__CILK_FOR_COUNT_): Delete. * tree-nested.c: Ditto. * tree-pretty-print.c (dump_omp_clause): Remove cilkplus support. (dump_generic_node): Ditto. * tree.c (OMP_CLAUSE__CILK_FOR_COUNT_): Delete. * tree.def (cilk_simd, cilk_for, cilk_spawn_stmt, cilk_sync_stmt): Delete. * tree.h (CILK_SPAWN_FN, EXPR_CILK_SPAWN): Delete. gcc/c-family/ * array-notation-common.c: Delete. * c-cilkplus.c: Ditto. * c-common.c (_Cilk_spawn, _Cilk_sync, _Cilk_for): Remove. * c-common.def (ARRAY_NOTATION_REF): Remove. * c-common.h (RID_CILK_SPAWN, build_array_notation_expr, build_array_notation_ref, C_ORT_CILK, c_check_cilk_loop, c_validate_cilk_plus_loop, cilkplus_an_parts, cilk_ignorable_spawn_rhs_op, cilk_recognize_spawn): Remove. * c-gimplify.c (CILK_SPAWN_STMT): Remove. * c-omp.c: Remove CILK_SIMD check. * c-pragma.c: Ditto. * c-pragma.h: Remove CILK related pragmas. * c-pretty-print.c (c_pretty_printer::postfix_expression): Remove ARRAY_NOTATION_REF condition. (c_pretty_printer::expression): Ditto. * c.opt (fcilkplus): Remove. * cilk.c: Delete. gcc/c/ * Make-lang.in (c/c-array-notation.o): Remove. * c-array-notation.c: Delete. * c-decl.c: Remove cilkplus condition. * c-parser.c (c_parser_cilk_simd, c_parser_cilk_for, c_parser_cilk_verify_simd, c_parser_array_notation, c_parser_cilk_clause_vectorlength, c_parser_cilk_grainsize, c_parser_cilk_simd_fn_vector_attrs, c_finish_cilk_simd_fn_tokens): Delete. (c_parser_declaration_or_fndef): Remove cilkplus condition. (c_parser_direct_declarator_inner): Ditto. (CILK_SIMD_FN_CLAUSE_MASK): Delete. (c_parser_attributes, c_parser_compound_statement, c_parser_statement_after_labels, c_parser_if_statement, c_parser_switch_statement, c_parser_while_statement, c_parser_do_statement, c_parser_for_statement, c_parser_unary_expression, c_parser_postfix_expression, c_parser_postfix_expression_after_primary, c_parser_pragma, c_parser_omp_clause_name, c_parser_omp_all_clauses, c_parser_omp_for_loop, c_finish_omp_declare_simd): Remove cilkplus support. * c-typeck.c (build_array_ref, build_function_call_vec, convert_arguments, lvalue_p, build_compound_expr, c_finish_return, c_finish_if_stmt, c_finish_loop, build_binary_op): Remove cilkplus support. gcc/cp/ * Make-lang.in (cp/cp-array-notation.o, cp/cp-cilkplus.o): Delete. * call.c (convert_for_arg_passing, build_cxx_call): Remove cilkplus. * constexpr.c (potential_constant_expression_1): Ditto. * cp-array-notation.c: Delete. * cp-cilkplus.c: Ditto. * cp-cilkplus.h: Ditto. * cp-gimplify.c (cp_gimplify_expr, cp_fold_r, cp_genericize): Remove cilkplus condition. * cp-objcp-common.c (ARRAY_NOTATION_REF): Delete. * cp-tree.h (cilkplus_an_triplet_types_ok_p): Delete. * decl.c (grokfndecl, finish_function): Remove cilkplus condition. * error.c (dump_decl, dump_expr): Remove ARRAY_NOTATION_REF condition. * lambda.c (cp-cilkplus.h): Remove. * parser.c (cp_parser_cilk_simd, cp_parser_cilk_for, cp_parser_cilk_simd_vectorlength): Delete. (cp_debug_parser, cp_parser_ctor_initializer_opt_and_function_body, cp_parser_postfix_expression, cp_parser_postfix_open_square_expression, cp_parser_statement, cp_parser_jump_statement, cp_parser_direct_declarator, cp_parser_late_return_type_opt, cp_parser_gnu_attribute_list, cp_parser_omp_clause_name, cp_parser_omp_clause_aligned, cp_parser_omp_clause_linear, cp_parser_omp_all_clauses, cp_parser_omp_flush, cp_parser_omp_for_cond, cp_parser_omp_for_incr, cp_parser_omp_for_loop_init, cp_parser_omp_for_loop, cp_parser_omp_declare_simd): Remove cilkplus support. (CILK_SIMD_FN_CLAUSE_MASK, cp_parser_late_parsing_cilk_simd_fn_info, cp_parser_cilk_grainsize): Remove. (cp_parser_pragma, c_parse_file): Remove cilkplus support. (cp_parser_cilk_simd_vectorlength, cp_parser_cilk_simd_linear, cp_parser_cilk_simd_clause_name, cp_parser_cilk_simd_all_clauses, cp_parser_cilk_simd, cp_parser_cilk_for): Remove. * parser.h (IN_CILK_SIMD_FOR, IN_CILK_SPAWN): Remove. * pt.c (tsubst_attribute, tsubst_expr, tsubst_copy_and_build): Remove cilkplus support. * semantics.c (finish_goto_stmt, begin_while_stmt, finish_do_body, finish_init_stmt, finish_switch_cond, simplify_aggr_init_expr, finish_omp_clauses, finish_omp_clauses, finish_omp_for): Remove cilkplus support. * tree.c (lvalue_kind): Remove ARRAY_NOTATION_REF conditon. * typeck.c (cp_build_array_ref, cp_build_compound_expr, check_return_expr): Remove cilkplus support. gcc/testsuite/ * c-c++-common/attr-simd-3.c: Delete. * c-c++-common/cilk-plus/AN/an-if.c: Delete. * c-c++-common/cilk-plus/AN/array_test1.c: Delete. * c-c++-common/cilk-plus/AN/array_test2.c: Delete. * c-c++-common/cilk-plus/AN/array_test_ND.c: Delete. * c-c++-common/cilk-plus/AN/builtin_fn_custom.c: Delete. * c-c++-common/cilk-plus/AN/builtin_fn_mutating.c: Delete. * c-c++-common/cilk-plus/AN/builtin_func_double.c: Delete. * c-c++-common/cilk-plus/AN/builtin_func_double2.c: Delete. * c-c++-common/cilk-plus/AN/comma_exp.c: Delete. * c-c++-common/cilk-plus/AN/conditional.c: Delete. * c-c++-common/cilk-plus/AN/decl-ptr-colon.c: Delete. * c-c++-common/cilk-plus/AN/dimensionless-arrays.c: Delete. * c-c++-common/cilk-plus/AN/exec-once.c: Delete. * c-c++-common/cilk-plus/AN/exec-once2.c: Delete. * c-c++-common/cilk-plus/AN/fn_ptr-2.c: Delete. * c-c++-common/cilk-plus/AN/fn_ptr.c: Delete. * c-c++-common/cilk-plus/AN/fp_triplet_values.c: Delete. * c-c++-common/cilk-plus/AN/gather-scatter-errors.c: Delete. * c-c++-common/cilk-plus/AN/gather_scatter.c: Delete. * c-c++-common/cilk-plus/AN/if_test.c: Delete. * c-c++-common/cilk-plus/AN/if_test_errors.c: Delete. * c-c++-common/cilk-plus/AN/misc.c: Delete. * c-c++-common/cilk-plus/AN/n-ptr-test.c: Delete. * 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c-c++-common/cilk-plus/AN/rank_mismatch3.c: Delete. * c-c++-common/cilk-plus/AN/sec_implicit.c: Delete. * c-c++-common/cilk-plus/AN/sec_implicit2.c: Delete. * c-c++-common/cilk-plus/AN/sec_implicit_ex.c: Delete. * c-c++-common/cilk-plus/AN/sec_reduce_ind_same_value.c: Delete. * c-c++-common/cilk-plus/AN/sec_reduce_max_min_ind.c: Delete. * c-c++-common/cilk-plus/AN/sec_reduce_return.c: Delete. * c-c++-common/cilk-plus/AN/side-effects-1.c: Delete. * c-c++-common/cilk-plus/AN/test_builtin_return.c: Delete. * c-c++-common/cilk-plus/AN/test_sec_limits.c: Delete. * c-c++-common/cilk-plus/AN/tst_lngth.c: Delete. * c-c++-common/cilk-plus/AN/vla.c: Delete. * c-c++-common/cilk-plus/CK/Wparentheses-1.c: Delete. * c-c++-common/cilk-plus/CK/cilk-for-2.c: Delete. * c-c++-common/cilk-plus/CK/cilk-for-3.c: Delete. * c-c++-common/cilk-plus/CK/cilk-fors.c: Delete. * c-c++-common/cilk-plus/CK/cilk_for_errors.c: Delete. * c-c++-common/cilk-plus/CK/cilk_for_grain.c: Delete. * 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Co-Authored-By: Sebastian Peryt <sebastian.peryt@intel.com> From-SVN: r255195
2017-11-21* c-common.c (get_nonnull_operand): Use tree_to_uhwi.Jakub Jelinek1-1/+1
From-SVN: r255003
2017-11-21re PR c++/83059 (ICE on invalid C++ code: in tree_to_uhwi, at tree.c:6633)Jakub Jelinek1-7/+8
PR c++/83059 * c-common.c (get_atomic_generic_size): Use TREE_INT_CST_LOW instead of tree_to_uhwi, formatting fix. * config/i386/i386.c (ix86_memmodel_check): Start -Winvalid-memory-model diagnostics with lowercase letter. * c-c++-common/pr83059.c: New test. From-SVN: r254990
2017-11-15Add __builtin_tgmath for better tgmath.h implementation (bug 81156).Joseph Myers1-0/+1
Various implementations of C99/C11 <tgmath.h> have the property that their macro expansions contain many copies of the macro arguments, so resulting in exponential blowup of the size of macro expansions where a call to such a macro contains other such calls in the macro arguments. This patch adds a (C-only) language feature __builtin_tgmath designed to avoid this problem by implementing the <tgmath.h> function selection rules directly in the compiler. The effect is that type-generic macros can be defined simply as #define pow(a, b) __builtin_tgmath (powf, pow, powl, \ cpowf, cpow, cpowl, a, b) as in the example added to the manual, with each macro argument expanded exactly once. The details of __builtin_tgmath are as described in the manual. This is C-only since C++ uses function overloading and just defines <ctgmath> to include <ccomplex> and <cmath>. __builtin_tgmath handles C99/C11 type-generic macros, and _FloatN, _FloatNx and decimal floating-point types (following the proposed resolution to the floating-point TS DR#9 that makes the rules for finding a common type from arguments to a type-generic macro follow the usual arithmetic conversions after adjustment of integer arguments to _Decimal64 or double - or to _Complex double in the case of GNU complex integer arguments). Type-generic macros for functions from TS 18661 that round their results to a narrower type are handled, but there are still some unresolved questions regarding such macros so further changes in that regard may be needed in future. The current implementation follows an older version of the DR#13 resolution (allowing a function for a wide-enough argument type to be selected if no exactly-matching function is available), but with appropriate calls to __builtin_tgmath is still fully compatible with the latest version of the resolution (not yet in the DR log), and allowing such not-exactly-matching argument types to be chosen in that case avoids needing another special case to treat integers as _Float64 instead of double in certain cases. Regarding other possible language/library features, not currently implemented in GCC: * Imaginary types could be naturally supported by allowing cases where the type-generic type is an imaginary type T and arguments or return types may be T (as at present), or the corresponding real type to T (as at present), or (new) the corresponding real type if T is real or imaginary but T if T is complex. (tgmath.h would need a series of functions such as static inline _Imaginary double __sin_imag (_Imaginary double __x) { return _Imaginary_I * sinh (__imag__ __x); } to be used in __builtin_tgmath calls.) * __builtin_tgmath would use the constant rounding direction in the presence of support for the FENV_ROUND / FENV_DEC_ROUND pragmas. Support for those would also require a new __builtin_<something> to cause a non-type-generic call to use the constant rounding direction (it seems cleaner to add a new __builtin_<something> when required than to make __builtin_tgmath handle a non-type-generic case with only one function argument). * TS 18661-5 __STDC_TGMATH_OPERATOR_EVALUATION__ would require new __builtin_<something> that evaluates with excess range and precision like arithmetic operators do. * The proposed C bindings for IEEE 754-2018 augmented arithmetic operations involve struct return types. As currently implemented __builtin_tgmath does not handle those, but support could be added. There are many error cases that the implementation diagnoses. I've tried to ensure reasonable error messages for erroneous uses of __builtin_tgmath, but the errors for erroneous uses of the resulting type-generic macros (that is, when the non-function arguments have inappropriate types) are more important as they are more likely to be seen by users. GCC's own tgmath.h, as used for some targets, is updated in this patch. I've tested those changes minimally, via adjusting gcc.dg/c99-tgmath-* locally to use that tgmath.h version. I've also run the glibc testsuite (which has much more thorough tests of correctness of tgmath.h function selection) with a glibc patch to use __builtin_tgmath in glibc's tgmath.h. Bootstrapped with no regressions on x86_64-pc-linux-gnu. PR c/81156 gcc: * doc/extend.texi (Other Builtins): Document __builtin_tgmath. * ginclude/tgmath.h (__tg_cplx, __tg_ldbl, __tg_dbl, __tg_choose) (__tg_choose_2, __tg_choose_3, __TGMATH_REAL_1_2) (__TGMATH_REAL_2_3): Remove macros. (__TGMATH_CPLX, __TGMATH_CPLX_2, __TGMATH_REAL, __TGMATH_REAL_2) (__TGMATH_REAL_3, __TGMATH_CPLX_ONLY): Define using __builtin_tgmath. (frexp, ldexp, nexttoward, scalbn, scalbln): Define using __TGMATH_REAL_2. (remquo): Define using __TGMATH_REAL_3. gcc/c: * c-parser.c (check_tgmath_function): New function. (enum tgmath_parm_kind): New enum. (c_parser_postfix_expression): Handle __builtin_tgmath. gcc/c-family: * c-common.c (c_common_reswords): Add __builtin_tgmath. * c-common.h (enum rid): Add RID_BUILTIN_TGMATH. gcc/testsuite: * gcc.dg/builtin-tgmath-1.c, gcc.dg/builtin-tgmath-2.c, gcc.dg/builtin-tgmath-err-1.c, gcc.dg/builtin-tgmath-err-2.c, gcc.dg/dfp/builtin-tgmath-dfp-err.c, gcc.dg/dfp/builtin-tgmath-dfp.c: New tests. From-SVN: r254749
2017-11-10PR c/81117 - Improve buffer overflow checking in strncpyMartin Sebor1-3/+3
gcc/ChangeLog: PR c/81117 * builtins.c (compute_objsize): Handle arrays that compute_builtin_object_size likes to fail for. Make extern. * builtins.h (compute_objsize): Declare. (check_strncpy_sizes): New function. (expand_builtin_strncpy): Call check_strncpy_sizes. * gimple-fold.c (gimple_fold_builtin_strncpy): Implement -Wstringop-truncation. (gimple_fold_builtin_strncat): Same. * gimple.c (gimple_build_call_from_tree): Set call location. * tree-ssa-strlen.c (strlen_to_stridx): New global variable. (maybe_diag_bound_equal_length, is_strlen_related_p): New functions. (handle_builtin_stxncpy, handle_builtin_strncat): Same. (handle_builtin_strlen): Use strlen_to_stridx. (strlen_optimize_stmt): Handle flavors of strncat, strncpy, and stpncpy. Use strlen_to_stridx. (pass_strlen::execute): Release strlen_to_stridx. * doc/invoke.texi (-Wsizeof-pointer-memaccess): Document enhancement. (-Wstringop-truncation): Document new option. gcc/ada/ChangeLog: PR c/81117 * ada/adadecode.c (__gnat_decode): Use memcpy instead of strncpy. * ada/argv.c (__gnat_fill_arg, __gnat_fill_env): Same. gcc/c-family/ChangeLog: PR c/81117 * c-common.c (catenate_strings): Use memcpy instead of strncpy. * c-warn.c (sizeof_pointer_memaccess_warning): Handle arrays. * c.opt (-Wstringop-truncation): New option. gcc/fortran/ChangeLog: PR c/81117 * gcc/fortran/decl.c (build_sym): Use strcpy instead of strncpy. gcc/objc/ChangeLog: PR c/81117 * objc-encoding.c (encode_type): Use memcpy instead of strncpy. gcc/testsuite/ChangeLog: PR c/81117 * c-c++-common/Wsizeof-pointer-memaccess3.c: New test. * c-c++-common/Wstringop-overflow.c: Same. * c-c++-common/Wstringop-truncation.c: Same. * c-c++-common/Wsizeof-pointer-memaccess2.c: Adjust. * c-c++-common/attr-nonstring-2.c: New test. * g++.dg/torture/Wsizeof-pointer-memaccess1.C: Adjust. * g++.dg/torture/Wsizeof-pointer-memaccess2.C: Same. * gcc.dg/torture/pr63554.c: Same. * gcc.dg/Walloca-1.c: Disable macro tracking. From-SVN: r254630
2017-10-31diagnostics: get rid of *_at_rich_loc in favor of overloadingDavid Malcolm1-8/+8
Adding a fix-it hint currently involves changing e.g.: error_at (token->location, "unknown type name %qE; did you mean %qs?", token->value, hint); to: gcc_rich_location richloc (token->location); richloc.add_fixit_replace (hint); error_at_rich_loc (&richloc, "unknown type name %qE; did you mean %qs?", token->value, hint); to make the change from taking a location_t to a rich_location *. This patch renames the "*_at_rich_loc" diagnostic entrypoints to use the same function names for rich_location * as for location_t, via overloading, to simplify the above change to just changing from: error_at (token->location, "unknown type name %qE; did you mean %qs?", token->value, hint); to: gcc_rich_location richloc (token->location); richloc.add_fixit_replace (hint); error_at (&richloc, "unknown type name %qE; did you mean %qs?", token->value, hint); thus saving space (and typing) and usually avoiding the need to reindent the "error_at" invocation. With this change, 0 is no longer acceptable as a location_t to these entrypoints, as e.g.: ../../src/gcc/auto-profile.c:855:37: error: call of overloaded 'inform(int, const char [18])' is ambiguous inform (0, "Not expected TAG."); ^ In file included from ../../src/gcc/auto-profile.c:35:0: ../../src/gcc/diagnostic-core.h:88:13: note: candidate: 'void inform(location_t, const char*, ...)' extern void inform (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3); ^~~~~~ ../../src/gcc/diagnostic-core.h:89:13: note: candidate: 'void inform(rich_location*, const char*, ...)' extern void inform (rich_location *, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3); ^~~~~~ Such locations now need to be spelled out as UNKNOWN_LOCATION, rather than 0. I considered making the API take a rich_location & rather than a rich_location *, but doing so would mean replacing diagnostic_set_info and diagnostic_set_info_translated with a constructor for diagnostic_info, which was a more invasive change. Maybe in the future. gcc/ChangeLog: * auto-profile.c (autofdo_source_profile::read): Use UNKNOWN_LOCATION rather than 0. * diagnostic-core.h (warning_at_rich_loc): Rename to... (warning_at): ...this overload. (warning_at_rich_loc_n): Rename to... (warning_n): ...this overload. (error_at_rich_loc): Rename to... (error_at): ...this overload. (pedwarn_at_rich_loc): Rename to... (pedwarn): ...this overload. (permerror_at_rich_loc): Rename to... (permerror): ...this overload. (inform_at_rich_loc): Rename to... (inform): ...this overload. * diagnostic.c: (diagnostic_n_impl): Delete location_t-based decl. (diagnostic_n_impl_richloc): Rename to... (diagnostic_n_impl): ...this rich_location *-based decl. (inform_at_rich_loc): Rename to... (inform): ...this, and add an assertion. (inform_n): Update for removal of location_t-based diagnostic_n_impl. (warning_at_rich_loc): Rename to... (warning_at): ...this, and add an assertion. (warning_at_rich_loc_n): Rename to... (warning_n): ...this, and add an assertion. (warning_n): Update location_t-based implementation for removal of location_t-based diagnostic_n_impl. (pedwarn_at_rich_loc): Rename to... (pedwarn): ...this, and add an assertion. (permerror_at_rich_loc): Rename to... (permerror): ...this, and add an assertion. (error_n): Update for removal of location_t-based diagnostic_n_impl. (error_at_rich_loc): Rename to... (error_at): ...this, and add an assertion. * gcc.c (do_spec_1): Use UNKNOWN_LOCATION rather than 0. (driver::do_spec_on_infiles): Likewise. * substring-locations.c (format_warning_va): Update for renaming of inform_at_rich_loc. gcc/c-family/ChangeLog: * c-common.c (binary_op_error): Update for renaming of error_at_rich_loc. (c_parse_error): Likewise. * c-warn.c (warn_logical_not_parentheses): Likewise for renaming of inform_at_rich_loc. (warn_for_restrict): Likewise for renaming of warning_at_rich_loc_n. gcc/c/ChangeLog: * c-decl.c (implicit_decl_warning): Update for renaming of pedwarn_at_rich_loc and warning_at_rich_loc. (implicitly_declare): Likewise for renaming of inform_at_rich_loc. (undeclared_variable): Likewise for renaming of error_at_rich_loc. * c-parser.c (c_parser_declaration_or_fndef): Likewise. (c_parser_struct_or_union_specifier): Likewise for renaming of pedwarn_at_rich_loc. (c_parser_parameter_declaration): Likewise for renaming of error_at_rich_loc. * c-typeck.c (build_component_ref): Likewise. (build_unary_op): Likewise for renaming of inform_at_rich_loc. (pop_init_level): Likewise for renaming of warning_at_rich_loc. (set_init_label): Likewise for renaming of error_at_rich_loc. gcc/cp/ChangeLog: * class.c (explain_non_literal_class): Use UNKNOWN_LOCATION rather than 0. * name-lookup.c (suggest_alternatives_for): Update for renaming of inform_at_rich_loc. (maybe_suggest_missing_header): Likewise. (suggest_alternative_in_explicit_scope): Likewise. * parser.c (cp_parser_diagnose_invalid_type_name): Likewise for renaming of error_at_rich_loc. (cp_parser_string_literal): Likewise. (cp_parser_nested_name_specifier_opt): Likewise. (cp_parser_cast_expression): Likewise for renaming of warning_at_rich_loc. (cp_parser_decl_specifier_seq): Likewise for renaming of error_at_rich_loc and warning_at_rich_loc. (cp_parser_elaborated_type_specifier): Likewise for renaming of pedwarn_at_rich_loc. (cp_parser_cv_qualifier_seq_opt): Likewise for renaming of error_at_rich_loc. (cp_parser_virt_specifier_seq_opt): Likewise. (cp_parser_class_specifier_1): Likewise. (cp_parser_class_head): Likewise. (cp_parser_member_declaration): Likewise for renaming of pedwarn_at_rich_loc, warning_at_rich_loc, and error_at_rich_loc. (cp_parser_enclosed_template_argument_list): Likewise for renaming of error_at_rich_loc. (set_and_check_decl_spec_loc): Likewise. * pt.c (listify): Likewise. * rtti.c (typeid_ok_p): Likewise. * semantics.c (process_outer_var_ref): Use UNKNOWN_LOCATION rather than 0. * typeck.c (access_failure_info::maybe_suggest_accessor): Update for renaming of inform_at_rich_loc. (finish_class_member_access_expr): Likewise for renaming of error_at_rich_loc. gcc/objc/ChangeLog: * objc-gnu-runtime-abi-01.c (objc_gnu_runtime_abi_01_init): Use UNKNOWN_LOCATION rather than 0. gcc/testsuite/ChangeLog: * gcc.dg/plugin/diagnostic_plugin_show_trees.c (show_tree): Update for renaming of error_at_rich_loc and inform_at_rich_loc. * gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (test_show_locus): Likewise for renaming of warning_at_rich_loc. libcpp/ChangeLog: * directives.c (_cpp_handle_directive): Update for renaming of cpp_error_at_richloc to cpp_error_at. * errors.c (cpp_diagnostic_at_richloc): Rename to... (cpp_diagnostic_at): ...this, dropping the location_t-based implementation. (cpp_diagnostic): Update for removal of location_t-based cpp_diagnostic_at. (cpp_error_at): Likewise. (cpp_error_at_richloc): Rename to... (cpp_error_at): ...this, and update for renaming of cpp_diagnostic_at_richloc. * include/cpplib.h (cpp_error_at_richloc): Rename to... (cpp_error_at): ...this. From-SVN: r254280
2017-10-19asan.c (handle_builtin_alloca): Deal with all alloca variants.Eric Botcazou1-0/+10
* asan.c (handle_builtin_alloca): Deal with all alloca variants. (get_mem_refs_of_builtin_call): Likewise. * builtins.c (expand_builtin_apply): Adjust call to allocate_dynamic_stack_space. (expand_builtin_alloca): For __builtin_alloca_with_align_and_max, pass the third argument to allocate_dynamic_stack_space, otherwise -1. (expand_builtin): Deal with all alloca variants. (is_inexpensive_builtin): Likewise. * builtins.def (BUILT_IN_ALLOCA_WITH_ALIGN_AND_MAX): New. * calls.c (special_function_p): Deal with all alloca variants. (initialize_argument_information): Adjust call to allocate_dynamic_stack_space. (expand_call): Likewise. * cfgexpand.c (expand_call_stmt): Deal with all alloca variants. * doc/extend.texi (Built-ins): Add __builtin_alloca_with_align_and_max * explow.c (allocate_dynamic_stack_space): Add MAX_SIZE parameter and use it for the stack usage computation. * explow.h (allocate_dynamic_stack_space): Adjust prototype. * function.c (gimplify_parameters): Turn BUILT_IN_ALLOCA_WITH_ALIGN into BUILT_IN_ALLOCA_WITH_ALIGN_AND_MAX and pass maximum size. * gimple-ssa-warn-alloca.c (alloca_call_type): Simplify control flow. Take into account 3rd argument of __builtin_alloca_with_align_and_max. (in_loop_p): Remove first argument and useless check. (pass_walloca::execute): Remove useless test and adjust call to above. * gimple.c (gimple_build_call_from_tree): Deal with all alloc variants * gimplify.c (gimplify_vla_decl): Turn BUILT_IN_ALLOCA_WITH_ALIGN into BUILT_IN_ALLOCA_WITH_ALIGN_AND_MAX and pass maximum size. (gimplify_call_expr): Deal with all alloca variants. * hsa-gen.c (gen_hsa_alloca): Likewise. (gen_hsa_insns_for_call): Likewise. * ipa-pure-const.c (special_builtin_state): Likewise. * tree-chkp.c (chkp_build_returned_bound): Likewise. * tree-object-size.c (alloc_object_size): Likewise. * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Likewise. (call_may_clobber_ref_p_1): Likewise. * tree-ssa-ccp.c (evaluate_stmt): Likewise. (ccp_fold_stmt): Likewise. (optimize_stack_restore): Likewise. * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise. (mark_all_reaching_defs_necessary_1): Likewise. (propagate_necessity): Likewise. (eliminate_unnecessary_stmts): Likewise. * tree.c (build_common_builtin_nodes): Build BUILT_IN_ALLOCA_WITH_ALIGN_AND_MAX. * tree.h (ALLOCA_FUNCTION_CODE_P): New macro. (CASE_BUILT_IN_ALLOCA): Likewise. * varasm.c (incorporeal_function_p): Deal with all alloca variants. c-family/ * c-common.c (check_builtin_function_arguments): Also check arguments of __builtin_alloca_with_align_and_max. From-SVN: r253901
2017-10-12C/C++: add fix-it hints for various missing symbolsDavid Malcolm1-0/+158
The patch improves our C/C++ frontends' handling of missing symbols, by making c_parser_require and cp_parser_require use "better" locations for the diagnostic, and insert fix-it hints, under certain circumstances (see the comments in the patch for full details). For example, for this code with a missing semicolon: $ cat test.c int missing_semicolon (void) { return 42 } trunk currently emits: test.c:4:1: error: expected ';' before '}' token } ^ This patch adds a fix-it hint for the missing semicolon, and puts the error at the location of the missing semicolon, printing the followup token as a secondary location: test.c:3:12: error: expected ';' before '}' token return 42 ^ ; } ~ More examples can be seen in the test cases. gcc/c-family/ChangeLog: * c-common.c (enum missing_token_insertion_kind): New enum. (get_missing_token_insertion_kind): New function. (maybe_suggest_missing_token_insertion): New function. * c-common.h (maybe_suggest_missing_token_insertion): New decl. gcc/c/ChangeLog: * c-parser.c (c_parser_require): Add "type_is_unique" param and use it to guard calls to maybe_suggest_missing_token_insertion. (c_parser_parms_list_declarator): Override default value of new "type_is_unique" param to c_parser_require. (c_parser_asm_statement): Likewise. * c-parser.h (c_parser_require): Add "type_is_unique" param, defaulting to true. gcc/cp/ChangeLog: * parser.c (get_required_cpp_ttype): New function. (cp_parser_error_1): Call it, using the result to call maybe_suggest_missing_token_insertion. gcc/testsuite/ChangeLog: * c-c++-common/cilk-plus/AN/parser_errors.c: Update expected output to reflect changes to reported locations of missing symbols. * c-c++-common/cilk-plus/AN/parser_errors2.c: Likewise. * c-c++-common/cilk-plus/AN/parser_errors3.c: Likewise. * c-c++-common/cilk-plus/AN/pr61191.c: Likewise. * c-c++-common/gomp/pr63326.c: Likewise. * c-c++-common/missing-close-symbol.c: Likewise, also update for new fix-it hints. * c-c++-common/missing-symbol.c: Likewise, also add test coverage for missing colon in ternary operator. * g++.dg/cpp1y/digit-sep-neg.C: Likewise. * g++.dg/cpp1y/pr65202.C: Likewise. * g++.dg/missing-symbol-2.C: New test case. * g++.dg/other/do1.C: Update expected output to reflect changes to reported locations of missing symbols. * g++.dg/parse/error11.C: Likewise. * g++.dg/template/error11.C: Likewise. * gcc.dg/missing-symbol-2.c: New test case. * gcc.dg/missing-symbol-3.c: New test case. * gcc.dg/noncompile/940112-1.c: Update expected output to reflect changes to reported locations of missing symbols. * gcc.dg/noncompile/971104-1.c: Likewise. * obj-c++.dg/exceptions-6.mm: Likewise. * obj-c++.dg/pr48187.mm: Likewise. * objc.dg/exceptions-6.m: Likewise. From-SVN: r253690
2017-10-10Require wi::to_wide for treesRichard Sandiford1-1/+1
The wide_int routines allow things like: wi::add (t, 1) to add 1 to an INTEGER_CST T in its native precision. But we also have: wi::to_offset (t) // Treat T as an offset_int wi::to_widest (t) // Treat T as a widest_int Recently we also gained: wi::to_wide (t, prec) // Treat T as a wide_int in preccision PREC This patch therefore requires: wi::to_wide (t) when operating on INTEGER_CSTs in their native precision. This is just as efficient, and makes it clearer that a deliberate choice is being made to treat the tree as a wide_int in its native precision. This also removes the inconsistency that a) INTEGER_CSTs in their native precision can be used without an accessor but must use wi:: functions instead of C++ operators b) the other forms need an explicit accessor but the result can be used with C++ operators. It also helps with SVE, where there's the additional possibility that the tree could be a runtime value. 2017-10-10 Richard Sandiford <richard.sandiford@linaro.org> gcc/ * wide-int.h (wide_int_ref_storage): Make host_dependent_precision a template parameter. (WIDE_INT_REF_FOR): Update accordingly. * tree.h (wi::int_traits <const_tree>): Delete. (wi::tree_to_widest_ref, wi::tree_to_offset_ref): New typedefs. (wi::to_widest, wi::to_offset): Use them. Expand commentary. (wi::tree_to_wide_ref): New typedef. (wi::to_wide): New function. * calls.c (get_size_range): Use wi::to_wide when operating on trees as wide_ints. * cgraph.c (cgraph_node::create_thunk): Likewise. * config/i386/i386.c (ix86_data_alignment): Likewise. (ix86_local_alignment): Likewise. * dbxout.c (stabstr_O): Likewise. * dwarf2out.c (add_scalar_info, gen_enumeration_type_die): Likewise. * expr.c (const_vector_from_tree): Likewise. * fold-const-call.c (host_size_t_cst_p, fold_const_call_1): Likewise. * fold-const.c (may_negate_without_overflow_p, negate_expr_p) (fold_negate_expr_1, int_const_binop_1, const_binop) (fold_convert_const_int_from_real, optimize_bit_field_compare) (all_ones_mask_p, sign_bit_p, unextend, extract_muldiv_1) (fold_div_compare, fold_single_bit_test, fold_plusminus_mult_expr) (pointer_may_wrap_p, expr_not_equal_to, fold_binary_loc) (fold_ternary_loc, multiple_of_p, fold_negate_const, fold_abs_const) (fold_not_const, round_up_loc): Likewise. * gimple-fold.c (gimple_fold_indirect_ref): Likewise. * gimple-ssa-warn-alloca.c (alloca_call_type_by_arg): Likewise. (alloca_call_type): Likewise. * gimple.c (preprocess_case_label_vec_for_gimple): Likewise. * godump.c (go_output_typedef): Likewise. * graphite-sese-to-poly.c (tree_int_to_gmp): Likewise. * internal-fn.c (get_min_precision): Likewise. * ipa-cp.c (ipcp_store_vr_results): Likewise. * ipa-polymorphic-call.c (ipa_polymorphic_call_context::ipa_polymorphic_call_context): Likewise. * ipa-prop.c (ipa_print_node_jump_functions_for_edge): Likewise. (ipa_modify_call_arguments): Likewise. * match.pd: Likewise. * omp-low.c (scan_omp_1_op, lower_omp_ordered_clauses): Likewise. * print-tree.c (print_node_brief, print_node): Likewise. * stmt.c (expand_case): Likewise. * stor-layout.c (layout_type): Likewise. * tree-affine.c (tree_to_aff_combination): Likewise. * tree-cfg.c (group_case_labels_stmt): Likewise. * tree-data-ref.c (dr_analyze_indices): Likewise. (prune_runtime_alias_test_list): Likewise. * tree-dump.c (dequeue_and_dump): Likewise. * tree-inline.c (remap_gimple_op_r, copy_tree_body_r): Likewise. * tree-predcom.c (is_inv_store_elimination_chain): Likewise. * tree-pretty-print.c (dump_generic_node): Likewise. * tree-scalar-evolution.c (iv_can_overflow_p): Likewise. (simple_iv_with_niters): Likewise. * tree-ssa-address.c (addr_for_mem_ref): Likewise. * tree-ssa-ccp.c (ccp_finalize, evaluate_stmt): Likewise. * tree-ssa-loop-ivopts.c (constant_multiple_of): Likewise. * tree-ssa-loop-niter.c (split_to_var_and_offset) (refine_value_range_using_guard, number_of_iterations_ne_max) (number_of_iterations_lt_to_ne, number_of_iterations_lt) (get_cst_init_from_scev, record_nonwrapping_iv) (scev_var_range_cant_overflow): Likewise. * tree-ssa-phiopt.c (minmax_replacement): Likewise. * tree-ssa-pre.c (compute_avail): Likewise. * tree-ssa-sccvn.c (vn_reference_fold_indirect): Likewise. (vn_reference_maybe_forwprop_address, valueized_wider_op): Likewise. * tree-ssa-structalias.c (get_constraint_for_ptr_offset): Likewise. * tree-ssa-uninit.c (is_pred_expr_subset_of): Likewise. * tree-ssanames.c (set_nonzero_bits, get_nonzero_bits): Likewise. * tree-switch-conversion.c (collect_switch_conv_info, array_value_type) (dump_case_nodes, try_switch_expansion): Likewise. * tree-vect-loop-manip.c (vect_gen_vector_loop_niters): Likewise. (vect_do_peeling): Likewise. * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise. * tree-vect-stmts.c (vectorizable_load): Likewise. * tree-vrp.c (compare_values_warnv, vrp_int_const_binop): Likewise. (zero_nonzero_bits_from_vr, ranges_from_anti_range): Likewise. (extract_range_from_binary_expr_1, adjust_range_with_scev): Likewise. (overflow_comparison_p_1, register_edge_assert_for_2): Likewise. (is_masked_range_test, find_switch_asserts, maybe_set_nonzero_bits) (vrp_evaluate_conditional_warnv_with_ops, intersect_ranges): Likewise. (range_fits_type_p, two_valued_val_range_p, vrp_finalize): Likewise. (evrp_dom_walker::before_dom_children): Likewise. * tree.c (cache_integer_cst, real_value_from_int_cst, integer_zerop) (integer_all_onesp, integer_pow2p, integer_nonzerop, tree_log2) (tree_floor_log2, tree_ctz, mem_ref_offset, tree_int_cst_sign_bit) (tree_int_cst_sgn, get_unwidened, int_fits_type_p): Likewise. (get_type_static_bounds, num_ending_zeros, drop_tree_overflow) (get_range_pos_neg): Likewise. * ubsan.c (ubsan_expand_ptr_ifn): Likewise. * config/darwin.c (darwin_mergeable_constant_section): Likewise. * config/aarch64/aarch64.c (aapcs_vfp_sub_candidate): Likewise. * config/arm/arm.c (aapcs_vfp_sub_candidate): Likewise. * config/avr/avr.c (avr_fold_builtin): Likewise. * config/bfin/bfin.c (bfin_local_alignment): Likewise. * config/msp430/msp430.c (msp430_attr): Likewise. * config/nds32/nds32.c (nds32_insert_attributes): Likewise. * config/powerpcspe/powerpcspe-c.c (altivec_resolve_overloaded_builtin): Likewise. * config/powerpcspe/powerpcspe.c (rs6000_aggregate_candidate) (rs6000_expand_ternop_builtin): Likewise. * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Likewise. * config/rs6000/rs6000.c (rs6000_aggregate_candidate): Likewise. (rs6000_expand_ternop_builtin): Likewise. * config/s390/s390.c (s390_handle_hotpatch_attribute): Likewise. gcc/ada/ * gcc-interface/decl.c (annotate_value): Use wi::to_wide when operating on trees as wide_ints. gcc/c/ * c-parser.c (c_parser_cilk_clause_vectorlength): Use wi::to_wide when operating on trees as wide_ints. * c-typeck.c (build_c_cast, c_finish_omp_clauses): Likewise. (c_tree_equal): Likewise. gcc/c-family/ * c-ada-spec.c (dump_generic_ada_node): Use wi::to_wide when operating on trees as wide_ints. * c-common.c (pointer_int_sum): Likewise. * c-pretty-print.c (pp_c_integer_constant): Likewise. * c-warn.c (match_case_to_enum_1): Likewise. (c_do_switch_warnings): Likewise. (maybe_warn_shift_overflow): Likewise. gcc/cp/ * cvt.c (ignore_overflows): Use wi::to_wide when operating on trees as wide_ints. * decl.c (check_array_designated_initializer): Likewise. * mangle.c (write_integer_cst): Likewise. * semantics.c (cp_finish_omp_clause_depend_sink): Likewise. gcc/fortran/ * target-memory.c (gfc_interpret_logical): Use wi::to_wide when operating on trees as wide_ints. * trans-const.c (gfc_conv_tree_to_mpz): Likewise. * trans-expr.c (gfc_conv_cst_int_power): Likewise. * trans-intrinsic.c (trans_this_image): Likewise. (gfc_conv_intrinsic_bound): Likewise. (conv_intrinsic_cobound): Likewise. gcc/lto/ * lto.c (compare_tree_sccs_1): Use wi::to_wide when operating on trees as wide_ints. gcc/objc/ * objc-act.c (objc_decl_method_attributes): Use wi::to_wide when operating on trees as wide_ints. From-SVN: r253595
2017-09-12c-common.c (field_decl_cmp, [...]): Move to c/c-decl.c.Nathan Sidwell1-68/+0
c-family/ * c-common.c (field_decl_cmp, resort_data, resort_field_decl_cmp, resort_sorted_fields): Move to c/c-decl.c. * c-common.h (field_decl_cmp, resort_sorted_fields): Delete. (struct sorted_fields_type): Move to c/c-lang.h. c/ * c-decl.c (field_decl_cmp, resort_data, resort_field_decl_cmp, resort_sorted_fields): Moved from c-family/c-common.c. * c-lang.h (struct sorted_fields_type): Moved from c-family/c-common.h. From-SVN: r252023
2017-09-12re PR target/82112 (internal compiler error: in fold_convert_loc, at ↵Jakub Jelinek1-4/+8
fold-const.c:2262) PR target/82112 * c-common.c (sync_resolve_size): Instead of c_dialect_cxx () assertion check that in the condition. (get_atomic_generic_size): Likewise. Before testing if parameter has pointer type, if it has array type, call for C++ default_conversion to perform array-to-pointer conversion. * c-c++-common/pr82112.c: New test. * gcc.dg/pr82112.c: New test. From-SVN: r252003
2017-08-30[71/77] Use opt_scalar_mode for mode iteratorsRichard Sandiford1-5/+9
This patch uses opt_scalar_mode when iterating over scalar modes. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * coretypes.h (opt_scalar_mode): New typedef. * gdbhooks.py (build_pretty_printers): Handle it. * machmode.h (mode_iterator::get_2xwider): Add overload for opt_mode<T>. * emit-rtl.c (init_emit_once): Use opt_scalar_mode when iterating over scalar modes. * expr.c (convert_mode_scalar): Likewise. * omp-low.c (omp_clause_aligned_alignment): Likewise. * optabs.c (expand_float): Likewise. (expand_fix): Likewise. * tree-vect-stmts.c (vectorizable_conversion): Likewise. gcc/c-family/ * c-common.c (c_common_fixed_point_type_for_size): Use opt_scalar_mode for the mode iterator. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251522
2017-08-30[65/77] Add a SCALAR_TYPE_MODE macroRichard Sandiford1-2/+2
This patch adds a SCALAR_TYPE_MODE macro, along the same lines as SCALAR_INT_TYPE_MODE and SCALAR_FLOAT_TYPE_MODE. It also adds two instances of as_a <scalar_mode> to c_common_type, when converting an unsigned fixed-point SCALAR_TYPE_MODE to the equivalent signed mode. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * tree.h (SCALAR_TYPE_MODE): New macro. * expr.c (expand_expr_addr_expr_1): Use it. (expand_expr_real_2): Likewise. * fold-const.c (fold_convert_const_fixed_from_fixed): Likeise. (fold_convert_const_fixed_from_int): Likewise. (fold_convert_const_fixed_from_real): Likewise. (native_encode_fixed): Likewise (native_encode_complex): Likewise (native_encode_vector): Likewise. (native_interpret_fixed): Likewise. (native_interpret_real): Likewise. (native_interpret_complex): Likewise. (native_interpret_vector): Likewise. * omp-simd-clone.c (simd_clone_adjust_return_type): Likewise. (simd_clone_adjust_argument_types): Likewise. (simd_clone_init_simd_arrays): Likewise. (simd_clone_adjust): Likewise. * stor-layout.c (layout_type): Likewise. * tree.c (build_minus_one_cst): Likewise. * tree-cfg.c (verify_gimple_assign_ternary): Likewise. * tree-inline.c (estimate_move_cost): Likewise. * tree-ssa-math-opts.c (convert_plusminus_to_widen): Likewise. * tree-vect-loop.c (vect_create_epilog_for_reduction): Likewise. (vectorizable_reduction): Likewise. * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Likewise. (vect_recog_mixed_size_cond_pattern): Likewise. (check_bool_pattern): Likewise. (adjust_bool_pattern): Likewise. (search_type_for_mask_1): Likewise. * tree-vect-slp.c (vect_schedule_slp_instance): Likewise. * tree-vect-stmts.c (vectorizable_conversion): Likewise. (vectorizable_load): Likewise. (vectorizable_store): Likewise. * ubsan.c (ubsan_encode_value): Likewise. * varasm.c (output_constant): Likewise. gcc/c-family/ * c-lex.c (interpret_fixed): Use SCALAR_TYPE_MODE. * c-common.c (c_build_vec_perm_expr): Likewise. gcc/c/ * c-typeck.c (build_binary_op): Use SCALAR_TYPE_MODE. (c_common_type): Likewise. Use as_a <scalar_mode> when setting m1 and m2 to the signed equivalent of a fixed-point SCALAR_TYPE_MODE. gcc/cp/ * typeck.c (cp_build_binary_op): Use SCALAR_TYPE_MODE. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251516
2017-08-30[35/77] Add uses of as_a <scalar_int_mode>Richard Sandiford1-9/+9
This patch adds asserting as_a <scalar_int_mode> conversions to contexts in which the input is known to be a scalar integer mode. In expand_divmod, op1 is always a scalar_int_mode if op1_is_constant (but might not be otherwise). In expand_binop, the patch reverses a < comparison in order to avoid splitting a long line. gcc/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * cfgexpand.c (convert_debug_memory_address): Use as_a <scalar_int_mode>. * combine.c (expand_compound_operation): Likewise. (make_extraction): Likewise. (change_zero_ext): Likewise. (simplify_comparison): Likewise. * cse.c (cse_insn): Likewise. * dwarf2out.c (minmax_loc_descriptor): Likewise. (mem_loc_descriptor): Likewise. (loc_descriptor): Likewise. * expmed.c (init_expmed_one_mode): Likewise. (synth_mult): Likewise. (emit_store_flag_1): Likewise. (expand_divmod): Likewise. Use HWI_COMPUTABLE_MODE_P instead of a comparison with size. * expr.c (expand_assignment): Use as_a <scalar_int_mode>. (reduce_to_bit_field_precision): Likewise. * function.c (expand_function_end): Likewise. * internal-fn.c (expand_arith_overflow_result_store): Likewise. * loop-doloop.c (doloop_modify): Likewise. * optabs.c (expand_binop): Likewise. (expand_unop): Likewise. (expand_copysign_absneg): Likewise. (prepare_cmp_insn): Likewise. (maybe_legitimize_operand): Likewise. * recog.c (const_scalar_int_operand): Likewise. * rtlanal.c (get_address_mode): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. (simplify_cond_clz_ctz): Likewise. * tree-nested.c (get_nl_goto_field): Likewise. * tree.c (build_vector_type_for_mode): Likewise. * var-tracking.c (use_narrower_mode): Likewise. gcc/c-family/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * c-common.c (c_common_type_for_mode): Use as_a <scalar_int_mode>. gcc/lto/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * lto-lang.c (lto_type_for_mode): Use as_a <scalar_int_mode>. From-SVN: r251487
2017-08-30[4/77] Add FOR_EACH iterators for modesRichard Sandiford1-4/+5
The new iterators are: - FOR_EACH_MODE_IN_CLASS: iterate over all the modes in a mode class. - FOR_EACH_MODE_FROM: iterate over all the modes in a class, starting at a given mode. - FOR_EACH_WIDER_MODE: iterate over all the modes in a class, starting at the next widest mode after a given mode. - FOR_EACH_2XWIDER_MODE: same, but considering only modes that are two times wider than the previous mode. - FOR_EACH_MODE_UNTIL: iterate over all the modes in a class until a given mode is reached. - FOR_EACH_MODE: iterate over all the modes in a class between two given modes, inclusive of the first but not the second. These help with the stronger type checking added by later patches, since every new mode will be in the same class as the previous one. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * machmode.h (mode_traits): New structure. (get_narrowest_mode): New function. (mode_iterator::start): Likewise. (mode_iterator::iterate_p): Likewise. (mode_iterator::get_wider): Likewise. (mode_iterator::get_known_wider): Likewise. (mode_iterator::get_2xwider): Likewise. (FOR_EACH_MODE_IN_CLASS): New mode iterator. (FOR_EACH_MODE): Likewise. (FOR_EACH_MODE_FROM): Likewise. (FOR_EACH_MODE_UNTIL): Likewise. (FOR_EACH_WIDER_MODE): Likewise. (FOR_EACH_2XWIDER_MODE): Likewise. * builtins.c (expand_builtin_strlen): Use new mode iterators. * combine.c (simplify_comparison): Likewise * config/i386/i386.c (type_natural_mode): Likewise. * cse.c (cse_insn): Likewise. * dse.c (find_shift_sequence): Likewise. * emit-rtl.c (init_derived_machine_modes): Likewise. (init_emit_once): Likewise. * explow.c (hard_function_value): Likewise. * expmed.c (extract_fixed_bit_field_1): Likewise. (extract_bit_field_1): Likewise. (expand_divmod): Likewise. (emit_store_flag_1): Likewise. * expr.c (init_expr_target): Likewise. (convert_move): Likewise. (alignment_for_piecewise_move): Likewise. (widest_int_mode_for_size): Likewise. (emit_block_move_via_movmem): Likewise. (copy_blkmode_to_reg): Likewise. (set_storage_via_setmem): Likewise. (compress_float_constant): Likewise. * omp-low.c (omp_clause_aligned_alignment): Likewise. * optabs-query.c (get_best_extraction_insn): Likewise. * optabs.c (expand_binop): Likewise. (expand_twoval_unop): Likewise. (expand_twoval_binop): Likewise. (widen_leading): Likewise. (widen_bswap): Likewise. (expand_parity): Likewise. (expand_unop): Likewise. (prepare_cmp_insn): Likewise. (prepare_float_lib_cmp): Likewise. (expand_float): Likewise. (expand_fix): Likewise. (expand_sfix_optab): Likewise. * postreload.c (move2add_use_add2_insn): Likewise. * reg-stack.c (reg_to_stack): Likewise. * reginfo.c (choose_hard_reg_mode): Likewise. * rtlanal.c (init_num_sign_bit_copies_in_rep): Likewise. * stor-layout.c (mode_for_size): Likewise. (smallest_mode_for_size): Likewise. (mode_for_vector): Likewise. (finish_bitfield_representative): Likewise. * tree-ssa-math-opts.c (target_supports_divmod_p): Likewise. * tree-vect-generic.c (type_for_widest_vector_mode): Likewise. * tree-vect-stmts.c (vectorizable_conversion): Likewise. * var-tracking.c (prepare_call_arguments): Likewise. gcc/ada/ * gcc-interface/misc.c (fp_prec_to_size): Use new mode iterators. (fp_size_to_prec): Likewise. gcc/c-family/ * c-common.c (c_common_fixed_point_type_for_size): Use new mode iterators. * c-cppbuiltin.c (c_cpp_builtins): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251455
2017-08-29Fix --help=target (PR other/39851).Martin Liska1-1/+1
2017-08-29 Martin Liska <mliska@suse.cz> PR other/39851 * gcc.c (driver_handle_option): Add new argument. * opts-common.c (handle_option): Pass target_option_override_hook. * opts-global.c (lang_handle_option): Add new option. (set_default_handlers): Add new argument. (decode_options): Likewise. * opts.c (target_handle_option): Likewise. (common_handle_option): Call target_option_override_hook. * opts.h (struct cl_option_handler_func): Add hook for target option override. (struct cl_option_handlers): Likewise. (set_default_handlers): Add new argument. (decode_options): Likewise. (common_handle_option): Likewise. (target_handle_option): Likewise. * toplev.c (toplev::main): Pass targetm.target_option.override hook. 2017-08-29 Martin Liska <mliska@suse.cz> PR other/39851 * c-common.c (parse_optimize_options): Add argument to function call. * c-pragma.c (handle_pragma_diagnostic): Likewise. From-SVN: r251400
2017-08-21c-family/c/c++: pass optional vec<location_t> to c-format.cDavid Malcolm1-2/+2
This patch passes along the vec<location_t> of argument locations at a callsite from the C frontend to check_function_arguments and from there to c-format.c, so that we can underline the pertinent argument to mismatched format codes even for tree codes like decls and constants which lack a location_t for their usage sites. This takes e.g.: printf("hello %i %i %i ", foo, bar, baz); ~^ %s to: printf("hello %i %i %i ", foo, bar, baz); ~^ ~~~ %s which is useful for cases where there's more than one variadic argument. gcc/c-family/ChangeLog: * c-common.c (check_function_arguments): Add "arglogs" param; pass it to check_function_format. * c-common.h (check_function_arguments): Add vec<location_t> * param. (check_function_format): Likewise. * c-format.c (struct format_check_context): Add field "arglocs". (check_function_format): Add param "arglocs"; pass it to check_format_info. (check_format_info): Add param "arglocs"; use it to initialize new field of format_ctx. (check_format_arg): Pass format_ctx->arglocs to new param of check_format_info_main. (class argument_parser): New field "arglocs". (argument_parser::argument_parser): Add "arglocs_" param and use it to initialize new field. (argument_parser::check_argument_type): Pass new arglocs field to check_format_types. (check_format_info_main): Add param "arglocs", and use it when constructing arg_parser. (check_format_types): Add param "arglocs"; use it if non-NULL when !EXPR_HAS_LOCATION (cur_param) to get at location information. gcc/c/ChangeLog: * c-typeck.c (build_function_call_vec): Pass arg_loc to call to check_function_arguments. gcc/cp/ChangeLog: * call.c (build_over_call): Pass NULL for new parameter to check_function_arguments. * typeck.c (cp_build_function_call_vec): Likewise. gcc/testsuite/ChangeLog: * gcc.dg/format/diagnostic-ranges.c: Update expected results to show underlining of all pertinent params. * gcc.dg/format/pr72858.c: Likewise. From-SVN: r251238
2017-08-10C/C++: show pertinent open token when missing a close tokenDavid Malcolm1-8/+9
gcc/c/ChangeLog: * c-parser.c (c_parser_error): Rename to... (c_parser_error_richloc): ...this, making static, and adding "richloc" parameter, passing it to the c_parse_error call, rather than calling c_parser_set_source_position_from_token. (c_parser_error): Reintroduce, reimplementing in terms of the above, converting return type from void to bool. (class token_pair): New class. (struct matching_paren_traits): New struct. (matching_parens): New typedef. (struct matching_brace_traits): New struct. (matching_braces): New typedef. (get_matching_symbol): New function. (c_parser_require): Add param MATCHING_LOCATION, using it to highlight matching "opening" tokens for missing "closing" tokens. (c_parser_skip_until_found): Likewise. (c_parser_static_assert_declaration_no_semi): Convert explicit parsing of CPP_OPEN_PAREN and CPP_CLOSE_PAREN to use of class matching_parens, so that the pertinent open parenthesis is highlighted when there are problems locating the close parenthesis. (c_parser_struct_or_union_specifier): Likewise. (c_parser_typeof_specifier): Likewise. (c_parser_alignas_specifier): Likewise. (c_parser_simple_asm_expr): Likewise. (c_parser_braced_init): Likewise, for matching_braces. (c_parser_paren_condition): Likewise, for matching_parens. (c_parser_switch_statement): Likewise. (c_parser_for_statement): Likewise. (c_parser_asm_statement): Likewise. (c_parser_asm_operands): Likewise. (c_parser_cast_expression): Likewise. (c_parser_sizeof_expression): Likewise. (c_parser_alignof_expression): Likewise. (c_parser_generic_selection): Likewise. (c_parser_postfix_expression): Likewise for cases RID_VA_ARG, RID_OFFSETOF, RID_TYPES_COMPATIBLE_P, RID_AT_SELECTOR, RID_AT_PROTOCOL, RID_AT_ENCODE, reindenting as necessary. In case CPP_OPEN_PAREN, pass loc_open_paren to the c_parser_skip_until_found call. (c_parser_objc_class_definition): Use class matching_parens as above. (c_parser_objc_method_decl): Likewise. (c_parser_objc_try_catch_finally_statement): Likewise. (c_parser_objc_synchronized_statement): Likewise. (c_parser_objc_at_property_declaration): Likewise. (c_parser_oacc_wait_list): Likewise. (c_parser_omp_var_list_parens): Likewise. (c_parser_omp_clause_collapse): Likewise. (c_parser_omp_clause_default): Likewise. (c_parser_omp_clause_if): Likewise. (c_parser_omp_clause_num_threads): Likewise. (c_parser_omp_clause_num_tasks): Likewise. (c_parser_omp_clause_grainsize): Likewise. (c_parser_omp_clause_priority): Likewise. (c_parser_omp_clause_hint): Likewise. (c_parser_omp_clause_defaultmap): Likewise. (c_parser_oacc_single_int_clause): Likewise. (c_parser_omp_clause_ordered): Likewise. (c_parser_omp_clause_reduction): Likewise. (c_parser_omp_clause_schedule): Likewise. (c_parser_omp_clause_num_teams): Likewise. (c_parser_omp_clause_thread_limit): Likewise. (c_parser_omp_clause_aligned): Likewise. (c_parser_omp_clause_linear): Likewise. (c_parser_omp_clause_safelen): Likewise. (c_parser_omp_clause_simdlen): Likewise. (c_parser_omp_clause_depend): Likewise. (c_parser_omp_clause_map): Likewise. (c_parser_omp_clause_device): Likewise. (c_parser_omp_clause_dist_schedule): Likewise. (c_parser_omp_clause_proc_bind): Likewise. (c_parser_omp_clause_uniform): Likewise. (c_parser_omp_for_loop): Likewise. (c_parser_cilk_clause_vectorlength): Likewise. (c_parser_cilk_clause_linear): Likewise. (c_parser_transaction_expression): Likewise. * c-parser.h (c_parser_require): Add param matching_location with default UNKNOWN_LOCATION. (c_parser_error): Convert return type from void to bool. (c_parser_skip_until_found): Add param matching_location with default UNKNOWN_LOCATION. gcc/c-family/ChangeLog: * c-common.c (c_parse_error): Add rich_location * param, using it rather implicitly using input_location. * c-common.h (c_parse_error): Add rich_location * param. gcc/cp/ChangeLog: * parser.c (cp_parser_error): Update for new param to c_parse_error. (class token_pair): New class. (struct matching_paren_traits): New struct. (matching_parens): New typedef. (struct matching_brace_traits): New struct. (matching_braces): New typedef. (cp_parser_statement_expr): Convert explicit parsing of CPP_OPEN_PAREN and CPP_CLOSE_PAREN to use of class matching_parens, so that the pertinent open parenthesis is highlighted when there are problems locating the close parenthesis. (cp_parser_primary_expression): Likewise. (cp_parser_compound_literal_p): Remove consumption of opening paren. (cp_parser_postfix_expression): Convert explicit parsing of CPP_OPEN_PAREN and CPP_CLOSE_PAREN to use matching parens, as above. Use it to consume the opening paren previously consumed by cp_parser_compound_literal_p. (cp_parser_parenthesized_expression_list): Likewise. (cp_parser_unary_expression): Likewise. (cp_parser_new_expression): Likewise. (cp_parser_cast_expression): Likewise. (cp_parser_builtin_offsetof): Likewise. (cp_parser_trait_expr): Likewise. (cp_parser_lambda_declarator_opt): Likewise. (cp_parser_lambda_body): Likewise, for matching_braces. (cp_parser_compound_statement): Likewise. (cp_parser_selection_statement): Likewise, for matching_parens. (cp_parser_iteration_statement): Likewise. (cp_parser_already_scoped_statement): Likewise, for matching_braces. (cp_parser_linkage_specification): Likewise. (cp_parser_static_assert): Likewise, for matching_parens. (cp_parser_decltype): Likewise. (cp_parser_operator): Likewise. (cp_parser_enum_specifier): Likewise. (cp_parser_namespace_definition): Likewise. (cp_parser_direct_declarator): Likewise. (cp_parser_braced_list): Likewise. (cp_parser_class_specifier_1): Likewise, for matching_braces. (cp_parser_constant_initializer): Likewise. (cp_parser_noexcept_specification_opt): Likewise, for matching_parens. (cp_parser_exception_specification_opt): Likewise. (cp_parser_handler): Likewise. (cp_parser_asm_specification_opt): Likewise. (cp_parser_asm_operand_list): Likewise. (cp_parser_gnu_attributes_opt): Likewise. (cp_parser_std_attribute_spec): Likewise. (cp_parser_requirement_parameter_list): Likewise. (cp_parser_requirement_body): Likewise, for matching_braces. (cp_parser_compound_requirement): Likewise. (cp_parser_template_introduction): Likewise. (cp_parser_sizeof_pack): Likewise, for matching_parens. (cp_parser_sizeof_operand): Likewise; use it to consume the opening paren previously consumed by cp_parser_compound_literal_p. (get_matching_symbol): New function. (cp_parser_required_error): Add param "matching_location". Remove calls to cp_parser_error, instead setting a non-NULL gmsgid, and handling it if set by calling c_parse_error, potentially with a secondary location if matching_location was set. (cp_parser_require): Add param "matching_location", with a default value of UNKNOWN_LOCATION. (cp_parser_require_keyword): Update for new param of cp_parser_required_error. (cp_parser_objc_encode_expression): Update to class matching_parens as above. (cp_parser_objc_defs_expression): Likewise. (cp_parser_objc_protocol_expression): Likewise. (cp_parser_objc_selector_expression): Likewise. (cp_parser_objc_typename): Likewise. (cp_parser_objc_superclass_or_category): Likewise. (cp_parser_objc_try_catch_finally_statement): Likewise. (cp_parser_objc_synchronized_statement): Likewise. (cp_parser_objc_at_property_declaration): Likewise. (cp_parser_oacc_single_int_clause): Likewise. (cp_parser_oacc_shape_clause): Likewise. (cp_parser_omp_clause_collapse): Likewise. (cp_parser_omp_clause_default): Likewise. (cp_parser_omp_clause_final): Likewise. (cp_parser_omp_clause_if): Likewise. (cp_parser_omp_clause_num_threads): Likewise. (cp_parser_omp_clause_num_tasks): Likewise. (cp_parser_omp_clause_grainsize): Likewise. (cp_parser_omp_clause_priority): Likewise. (cp_parser_omp_clause_hint): Likewise. (cp_parser_omp_clause_defaultmap): Likewise. (cp_parser_omp_clause_ordered): Likewise. (cp_parser_omp_clause_schedule): Likewise. (cp_parser_omp_clause_num_teams): Likewise. (cp_parser_omp_clause_thread_limit): Likewise. (cp_parser_omp_clause_aligned): Likewise. (cp_parser_omp_clause_linear): Likewise. (cp_parser_omp_clause_safelen): Likewise. (cp_parser_omp_clause_simdlen): Likewise. (cp_parser_omp_clause_depend): Likewise. (cp_parser_omp_clause_device): Likewise. (cp_parser_omp_clause_dist_schedule): Likewise. (cp_parser_oacc_clause_async): Likewise. (cp_parser_omp_critical): Likewise. (cp_parser_omp_for_loop): Likewise. (cp_parser_omp_sections_scope): Likewise. (cp_parser_omp_declare_reduction_exprs): Likewise. Update for new param to cp_parser_required_error. (cp_parser_oacc_routine): Likewise. (cp_parser_transaction_expression): Likewise. (cp_parser_cilk_simd_vectorlength): Likewise. gcc/testsuite/ChangeLog: * c-c++-common/missing-close-symbol.c: New test case. * c-c++-common/missing-symbol.c: New test case. * gcc.dg/unclosed-init.c: New test case. * g++.dg/diagnostic/unclosed-extern-c.C: New test case. * g++.dg/diagnostic/unclosed-function.C: New test case. * g++.dg/diagnostic/unclosed-namespace.C: New test case. * g++.dg/diagnostic/unclosed-struct.C: New test case. * g++.dg/parse/pragma2.C: Update to reflect movement of the "expected identifier" error. From-SVN: r251026
2017-08-09Boolify some parameters.Marek Polacek1-5/+6
From-SVN: r250986
2017-07-14c/c++: Add fix-it hints for suggested missing #includesDavid Malcolm1-0/+131
gcc/c-family/ChangeLog: * c-common.c (try_to_locate_new_include_insertion_point): New function. (per_file_includes_t): New typedef. (added_includes_t): New typedef. (added_includes): New variable. (maybe_add_include_fixit): New function. * c-common.h (maybe_add_include_fixit): New decl. gcc/c/ChangeLog: * c-decl.c (implicitly_declare): When suggesting a missing #include, provide a fix-it hint. gcc/cp/ChangeLog: * name-lookup.c (get_std_name_hint): Add '<' and '>' around the header names. (maybe_suggest_missing_header): Update for addition of '<' and '>' to above. Provide a fix-it hint. * pt.c: Include "gcc-rich-location.h" (listify): Attempt to add fix-it hint for missing #include <initializer_list>. * rtti.c: Include "gcc-rich-location.h". (typeid_ok_p): Attempt to add fix-it hint for missing #include <typeinfo>. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/missing-initializer_list-include.C: New test case. * g++.dg/lookup/missing-std-include-2.C: New test case. * g++.dg/lookup/missing-std-include-3.C: New test case. * g++.dg/rtti/missing-typeinfo-include.C: New test case. * gcc.dg/missing-header-fixit-1.c: New test case. * gcc.dg/missing-header-fixit-2.c: New test case. * gcc.dg/missing-header-fixit-2.h: New header. From-SVN: r250203
2017-07-06Support C++-specific selftestsDavid Malcolm1-0/+16
gcc/ChangeLog: * Makefile.in (SELFTEST_FLAGS): Drop "-x c", moving it to... (C_SELFTEST_FLAGS): New. (CPP_SELFTEST_FLAGS): New. (SELFTEST_DEPS): New, from deps of s-selftest. (C_SELFTEST_DEPS): New, from deps of s-selftest. (CPP_SELFTEST_DEPS): New. (selftest): Add dependency on s-selftest-c++. (s-selftest): Rename to... (s-selftest-c): ...this, moving deps to SELFTEST_DEPS and C_SELFTEST_DEPS, and using C_SELFTEST_FLAGS rather than SELFTEST_FLAGS. (selftest-gdb): Rename to... (selftest-c-gdb): ...this, using C_SELFTEST_DEPS and C_SELFTEST_FLAGS. (selftest-gdb): Reintroduce as an alias for selftest-c-gdb. (selftest-valgrind): Rename to... (selftest-c-valgrind): ...this, using C_SELFTEST_DEPS and C_SELFTEST_FLAGS. (selftest-valgrind): Reintroduce as an alias for selftest-c-valgrind. (s-selftest-c++): New. (selftest-c++-gdb): New. (selftest-c++-valgrind): New. gcc/c-family/ChangeLog: * c-common.c (selftest::c_family_tests): New. * c-common.h (selftest::run_c_tests): Move decl to c/c-lang.h. (selftest::c_family_tests): New decl. gcc/c/ChangeLog: * c-lang.c (selftest::run_c_tests): Move body to c_family_tests, and call that instead. * c-tree.h (selftest::run_c_tests): New decl. gcc/cp/ChangeLog: * cp-lang.c (LANG_HOOKS_RUN_LANG_SELFTESTS): Define as selftest::run_cp_tests. (selftest::run_cp_tests): New function. * cp-tree.h (selftest::run_cp_tests): New decl. From-SVN: r250030