Add the clang library to the repo (with some of my changes, too).

1 files changed, 273 insertions, 0 deletions

diff --git a/clang/test/Misc/warning-flags.c b/clang/test/Misc/warning-flags.c
new file mode 100644
index 0000000..bc0c941
--- /dev/null
+++ b/clang/test/Misc/warning-flags.c
@@ -0,0 +1,273 @@
+RUN: diagtool list-warnings 2>&1 | FileCheck %s
+
+This test serves two purposes:
+
+(1) It documents all existing warnings that currently have no associated -W flag,
+    and ensures that the list never grows.
+    
+    If take an existing warning and add a flag, this test will fail.  To
+    fix this test, simply remove that warning from the list below.
+    
+(2) It prevents us adding new warnings to Clang that have no -W flag.  All
+    new warnings should have -W flags.
+    
+    If you add a new warning without a flag, this test will fail.  To fix
+    this test, simply add a warning group to that warning.
+    
+
+The list of warnings below should NEVER grow.  It should gradually shrink to 0.
+
+CHECK: Warnings without flags (253):
+CHECK-NEXT:   ext_anonymous_struct_union_qualified
+CHECK-NEXT:   ext_binary_literal
+CHECK-NEXT:   ext_cast_fn_obj
+CHECK-NEXT:   ext_delete_void_ptr_operand
+CHECK-NEXT:   ext_designated_init
+CHECK-NEXT:   ext_duplicate_declspec
+CHECK-NEXT:   ext_ellipsis_exception_spec
+CHECK-NEXT:   ext_empty_fnmacro_arg
+CHECK-NEXT:   ext_empty_source_file
+CHECK-NEXT:   ext_enum_friend
+CHECK-NEXT:   ext_enum_value_not_int
+CHECK-NEXT:   ext_enumerator_list_comma
+CHECK-NEXT:   ext_expected_semi_decl_list
+CHECK-NEXT:   ext_explicit_instantiation_without_qualified_id
+CHECK-NEXT:   ext_explicit_specialization_storage_class
+CHECK-NEXT:   ext_extra_ivar_semi
+CHECK-NEXT:   ext_extra_struct_semi
+CHECK-NEXT:   ext_forward_ref_enum
+CHECK-NEXT:   ext_freestanding_complex
+CHECK-NEXT:   ext_hexconstant_invalid
+CHECK-NEXT:   ext_ident_list_in_param
+CHECK-NEXT:   ext_imaginary_constant
+CHECK-NEXT:   ext_implicit_lib_function_decl
+CHECK-NEXT:   ext_in_class_initializer_non_constant
+CHECK-NEXT:   ext_integer_complement_complex
+CHECK-NEXT:   ext_integer_complex
+CHECK-NEXT:   ext_integer_increment_complex
+CHECK-NEXT:   ext_invalid_sign_spec
+CHECK-NEXT:   ext_missing_declspec
+CHECK-NEXT:   ext_missing_varargs_arg
+CHECK-NEXT:   ext_missing_whitespace_after_macro_name
+CHECK-NEXT:   ext_new_paren_array_nonconst
+CHECK-NEXT:   ext_nonstandard_escape
+CHECK-NEXT:   ext_param_not_declared
+CHECK-NEXT:   ext_paste_comma
+CHECK-NEXT:   ext_plain_complex
+CHECK-NEXT:   ext_pp_bad_vaargs_use
+CHECK-NEXT:   ext_pp_comma_expr
+CHECK-NEXT:   ext_pp_ident_directive
+CHECK-NEXT:   ext_pp_include_next_directive
+CHECK-NEXT:   ext_pp_line_too_big
+CHECK-NEXT:   ext_pp_macro_redef
+CHECK-NEXT:   ext_pp_warning_directive
+CHECK-NEXT:   ext_return_has_void_expr
+CHECK-NEXT:   ext_subscript_non_lvalue
+CHECK-NEXT:   ext_template_arg_extra_parens
+CHECK-NEXT:   ext_thread_before
+CHECK-NEXT:   ext_top_level_semi
+CHECK-NEXT:   ext_typecheck_addrof_void
+CHECK-NEXT:   ext_typecheck_cast_nonscalar
+CHECK-NEXT:   ext_typecheck_cast_to_union
+CHECK-NEXT:   ext_typecheck_comparison_of_distinct_pointers
+CHECK-NEXT:   ext_typecheck_comparison_of_distinct_pointers_nonstandard
+CHECK-NEXT:   ext_typecheck_comparison_of_fptr_to_void
+CHECK-NEXT:   ext_typecheck_comparison_of_pointer_integer
+CHECK-NEXT:   ext_typecheck_cond_incompatible_operands
+CHECK-NEXT:   ext_typecheck_cond_incompatible_operands_nonstandard
+CHECK-NEXT:   ext_typecheck_cond_one_void
+CHECK-NEXT:   ext_typecheck_convert_pointer_void_func
+CHECK-NEXT:   ext_typecheck_ordered_comparison_of_function_pointers
+CHECK-NEXT:   ext_typecheck_ordered_comparison_of_pointer_and_zero
+CHECK-NEXT:   ext_typecheck_ordered_comparison_of_pointer_integer
+CHECK-NEXT:   ext_typecheck_zero_array_size
+CHECK-NEXT:   ext_unknown_escape
+CHECK-NEXT:   ext_using_undefined_std
+CHECK-NEXT:   ext_vla_folded_to_constant
+CHECK-NEXT:   pp_include_next_absolute_path
+CHECK-NEXT:   pp_include_next_in_primary
+CHECK-NEXT:   pp_invalid_string_literal
+CHECK-NEXT:   pp_out_of_date_dependency
+CHECK-NEXT:   pp_poisoning_existing_macro
+CHECK-NEXT:   pp_pragma_once_in_main_file
+CHECK-NEXT:   pp_pragma_sysheader_in_main_file
+CHECK-NEXT:   pp_undef_builtin_macro
+CHECK-NEXT:   w_asm_qualifier_ignored
+CHECK-NEXT:   warn_accessor_property_type_mismatch
+CHECK-NEXT:   warn_anon_bitfield_width_exceeds_type_size
+CHECK-NEXT:   warn_asm_label_on_auto_decl
+CHECK-NEXT:   warn_attribute_ibaction
+CHECK-NEXT:   warn_attribute_iboutlet
+CHECK-NEXT:   warn_attribute_ignored
+CHECK-NEXT:   warn_attribute_ignored_for_field_of_type
+CHECK-NEXT:   warn_attribute_malloc_pointer_only
+CHECK-NEXT:   warn_attribute_nonnull_no_pointers
+CHECK-NEXT:   warn_attribute_precede_definition
+CHECK-NEXT:   warn_attribute_sentinel_named_arguments
+CHECK-NEXT:   warn_attribute_sentinel_not_variadic
+CHECK-NEXT:   warn_attribute_type_not_supported
+CHECK-NEXT:   warn_attribute_unknown_visibility
+CHECK-NEXT:   warn_attribute_void_function_method
+CHECK-NEXT:   warn_attribute_weak_import_invalid_on_definition
+CHECK-NEXT:   warn_attribute_weak_on_field
+CHECK-NEXT:   warn_attribute_weak_on_local
+CHECK-NEXT:   warn_attribute_wrong_decl_type
+CHECK-NEXT:   warn_availability_and_unavailable
+CHECK-NEXT:   warn_availability_unknown_platform
+CHECK-NEXT:   warn_availability_version_ordering
+CHECK-NEXT:   warn_bad_receiver_type
+CHECK-NEXT:   warn_bitfield_width_exceeds_type_size
+CHECK-NEXT:   warn_bool_switch_condition
+CHECK-NEXT:   warn_braces_around_scalar_init
+CHECK-NEXT:   warn_c_kext
+CHECK-NEXT:   warn_call_to_pure_virtual_member_function_from_ctor_dtor
+CHECK-NEXT:   warn_call_wrong_number_of_arguments
+CHECK-NEXT:   warn_case_empty_range
+CHECK-NEXT:   warn_char_constant_too_large
+CHECK-NEXT:   warn_class_method_not_found
+CHECK-NEXT:   warn_cmdline_missing_macro_defs
+CHECK-NEXT:   warn_collection_expr_type
+CHECK-NEXT:   warn_conflicting_param_types
+CHECK-NEXT:   warn_conflicting_ret_types
+CHECK-NEXT:   warn_conflicting_variadic
+CHECK-NEXT:   warn_conv_to_base_not_used
+CHECK-NEXT:   warn_conv_to_self_not_used
+CHECK-NEXT:   warn_conv_to_void_not_used
+CHECK-NEXT:   warn_cxx0x_right_shift_in_template_arg
+CHECK-NEXT:   warn_delete_array_type
+CHECK-NEXT:   warn_division_by_zero
+CHECK-NEXT:   warn_double_const_requires_fp64
+CHECK-NEXT:   warn_drv_assuming_mfloat_abi_is
+CHECK-NEXT:   warn_drv_clang_unsupported
+CHECK-NEXT:   warn_drv_input_file_unused
+CHECK-NEXT:   warn_drv_not_using_clang_arch
+CHECK-NEXT:   warn_drv_not_using_clang_cpp
+CHECK-NEXT:   warn_drv_not_using_clang_cxx
+CHECK-NEXT:   warn_drv_objc_gc_unsupported
+CHECK-NEXT:   warn_drv_pch_not_first_include
+CHECK-NEXT:   warn_drv_preprocessed_input_file_unused
+CHECK-NEXT:   warn_dup_category_def
+CHECK-NEXT:   warn_duplicate_protocol_def
+CHECK-NEXT:   warn_enum_too_large
+CHECK-NEXT:   warn_enum_value_overflow
+CHECK-NEXT:   warn_enumerator_too_large
+CHECK-NEXT:   warn_exception_caught_by_earlier_handler
+CHECK-NEXT:   warn_excess_initializers
+CHECK-NEXT:   warn_excess_initializers_in_char_array_initializer
+CHECK-NEXT:   warn_expected_qualified_after_typename
+CHECK-NEXT:   warn_extern_init
+CHECK-NEXT:   warn_extraneous_char_constant
+CHECK-NEXT:   warn_fe_cc_log_diagnostics_failure
+CHECK-NEXT:   warn_fe_cc_print_header_failure
+CHECK-NEXT:   warn_fe_macro_contains_embedded_newline
+CHECK-NEXT:   warn_file_asm_volatile
+CHECK-NEXT:   warn_function_attribute_wrong_type
+CHECK-NEXT:   warn_gc_attribute_weak_on_local
+CHECK-NEXT:   warn_gnu_inline_attribute_requires_inline
+CHECK-NEXT:   warn_hex_escape_too_large
+CHECK-NEXT:   warn_ignoring_ftabstop_value
+CHECK-NEXT:   warn_illegal_constant_array_size
+CHECK-NEXT:   warn_implements_nscopying
+CHECK-NEXT:   warn_incompatible_qualified_id
+CHECK-NEXT:   warn_initializer_string_for_char_array_too_long
+CHECK-NEXT:   warn_inline_namespace_reopened_noninline
+CHECK-NEXT:   warn_inst_method_not_found
+CHECK-NEXT:   warn_instance_method_on_class_found
+CHECK-NEXT:   warn_integer_too_large
+CHECK-NEXT:   warn_integer_too_large_for_signed
+CHECK-NEXT:   warn_invalid_asm_cast_lvalue
+CHECK-NEXT:   warn_many_braces_around_scalar_init
+CHECK-NEXT:   warn_maynot_respond
+CHECK-NEXT:   warn_member_extra_qualification
+CHECK-NEXT:   warn_method_param_redefinition
+CHECK-NEXT:   warn_mismatched_exception_spec
+CHECK-NEXT:   warn_missing_case_for_condition
+CHECK-NEXT:   warn_missing_dependent_template_keyword
+CHECK-NEXT:   warn_missing_exception_specification
+CHECK-NEXT:   warn_missing_whitespace_after_macro_name
+CHECK-NEXT:   warn_multiple_method_decl
+CHECK-NEXT:   warn_no_constructor_for_refconst
+CHECK-NEXT:   warn_nonnull_pointers_only
+CHECK-NEXT:   warn_not_compound_assign
+CHECK-NEXT:   warn_ns_attribute_wrong_parameter_type
+CHECK-NEXT:   warn_ns_attribute_wrong_return_type
+CHECK-NEXT:   warn_objc_object_attribute_wrong_type
+CHECK-NEXT:   warn_objc_property_copy_missing_on_block
+CHECK-NEXT:   warn_objc_property_default_assign_on_object
+CHECK-NEXT:   warn_objc_property_no_assignment_attribute
+CHECK-NEXT:   warn_objc_protocol_qualifier_missing_id
+CHECK-NEXT:   warn_octal_escape_too_large
+CHECK-NEXT:   warn_odr_tag_type_inconsistent
+CHECK-NEXT:   warn_on_superclass_use
+CHECK-NEXT:   warn_param_default_argument_redefinition
+CHECK-NEXT:   warn_partial_specs_not_deducible
+CHECK-NEXT:   warn_pointer_attribute_wrong_type
+CHECK-NEXT:   warn_pp_convert_lhs_to_positive
+CHECK-NEXT:   warn_pp_convert_rhs_to_positive
+CHECK-NEXT:   warn_pp_expr_overflow
+CHECK-NEXT:   warn_pp_line_decimal
+CHECK-NEXT:   warn_pragma_align_expected_equal
+CHECK-NEXT:   warn_pragma_align_invalid_option
+CHECK-NEXT:   warn_pragma_debug_unexpected_command
+CHECK-NEXT:   warn_pragma_expected_colon
+CHECK-NEXT:   warn_pragma_expected_enable_disable
+CHECK-NEXT:   warn_pragma_expected_identifier
+CHECK-NEXT:   warn_pragma_expected_lparen
+CHECK-NEXT:   warn_pragma_expected_rparen
+CHECK-NEXT:   warn_pragma_extra_tokens_at_eol
+CHECK-NEXT:   warn_pragma_ms_struct
+CHECK-NEXT:   warn_pragma_options_align_reset_failed
+CHECK-NEXT:   warn_pragma_options_align_unsupported_option
+CHECK-NEXT:   warn_pragma_options_expected_align
+CHECK-NEXT:   warn_pragma_pack_invalid_action
+CHECK-NEXT:   warn_pragma_pack_invalid_alignment
+CHECK-NEXT:   warn_pragma_pack_malformed
+CHECK-NEXT:   warn_pragma_pack_pop_failed
+CHECK-NEXT:   warn_pragma_pack_pop_identifer_and_alignment
+CHECK-NEXT:   warn_pragma_pack_show
+CHECK-NEXT:   warn_pragma_pop_macro_no_push
+CHECK-NEXT:   warn_pragma_unknown_extension
+CHECK-NEXT:   warn_pragma_unused_expected_punc
+CHECK-NEXT:   warn_pragma_unused_expected_var
+CHECK-NEXT:   warn_pragma_unused_expected_var_arg
+CHECK-NEXT:   warn_pragma_unused_undeclared_var
+CHECK-NEXT:   warn_previous_alias_decl
+CHECK-NEXT:   warn_printf_asterisk_missing_arg
+CHECK-NEXT:   warn_property_attr_mismatch
+CHECK-NEXT:   warn_property_attribute
+CHECK-NEXT:   warn_property_getter_owning_mismatch
+CHECK-NEXT:   warn_property_types_are_incompatible
+CHECK-NEXT:   warn_readonly_property
+CHECK-NEXT:   warn_receiver_forward_class
+CHECK-NEXT:   warn_redecl_library_builtin
+CHECK-NEXT:   warn_redeclaration_without_attribute_prev_attribute_ignored
+CHECK-NEXT:   warn_register_objc_catch_parm
+CHECK-NEXT:   warn_related_result_type_compatibility_class
+CHECK-NEXT:   warn_related_result_type_compatibility_protocol
+CHECK-NEXT:   warn_remainder_by_zero
+CHECK-NEXT:   warn_root_inst_method_not_found
+CHECK-NEXT:   warn_second_parameter_of_va_start_not_last_named_argument
+CHECK-NEXT:   warn_second_parameter_to_va_arg_never_compatible
+CHECK-NEXT:   warn_standalone_specifier
+CHECK-NEXT:   warn_static_inline_explicit_inst_ignored
+CHECK-NEXT:   warn_static_non_static
+CHECK-NEXT:   warn_template_export_unsupported
+CHECK-NEXT:   warn_template_spec_extra_headers
+CHECK-NEXT:   warn_tentative_incomplete_array
+CHECK-NEXT:   warn_transparent_union_attribute_field_size_align
+CHECK-NEXT:   warn_transparent_union_attribute_floating
+CHECK-NEXT:   warn_transparent_union_attribute_not_definition
+CHECK-NEXT:   warn_transparent_union_attribute_zero_fields
+CHECK-NEXT:   warn_typecheck_function_qualifiers
+CHECK-NEXT:   warn_unavailable_fwdclass_message
+CHECK-NEXT:   warn_undef_interface
+CHECK-NEXT:   warn_undef_interface_suggest
+CHECK-NEXT:   warn_undef_protocolref
+CHECK-NEXT:   warn_undefined_internal
+CHECK-NEXT:   warn_unknown_analyzer_checker
+CHECK-NEXT:   warn_unknown_method_family
+CHECK-NEXT:   warn_unterminated_char
+CHECK-NEXT:   warn_unterminated_string
+CHECK-NEXT:   warn_use_out_of_scope_declaration
+CHECK-NEXT:   warn_weak_identifier_undeclared
+CHECK-NEXT:   warn_weak_import