https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101292
--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:
--- /tmp/x.ii ---
struct type_info {
void operator==(type_info) { ((__name) || (0)); }
char __name;
};
enum byte : char;
void operator>>(byte, int) { ((0)); }
struct __class_type_info {
enum __sub_kind {
__contained_virtual_mask,
__contained_mask,
__contained_public
};
struct __dyncast_result;
};
__class_type_info::__sub_kind __do_dyncast_base_access;
struct __vmi_class_type_info : __class_type_info {
int __flags;
enum { __non_diamond_repeat_mask, __diamond_shaped_mask };
bool __do_dyncast(__dyncast_result &) const;
};
bool virtual_p(__class_type_info::__sub_kind access_path) {
(access_path & __class_type_info::__contained_virtual_mask);
((access_path & __class_type_info::__contained_public) ==
__class_type_info::__contained_public);
((access_path & __class_type_info::__contained_public) ==
__class_type_info::__contained_mask);
}
struct __class_type_info::__dyncast_result {
void *dst_ptr;
int whole_details;
__dyncast_result(int);
};
bool __vmi_class_type_info::__do_dyncast(__dyncast_result &result) const {
result = (0);
(__do_dyncast_base_access |
(__non_diamond_repeat_mask | __diamond_shaped_mask));
(__non_diamond_repeat_mask);
(0) || (result.dst_ptr) || (0);
(!(result.whole_details));
(0) && (0 || (__flags)) || (__flags & __diamond_shaped_mask);
}
$ gcc x.ii -c
x.ii: In function ‘bool virtual_p(__class_type_info::__sub_kind)’:
x.ii:27:1: warning: no return statement in function returning non-void
[-Wreturn-type]
27 | }
| ^
x.ii: In member function ‘bool
__vmi_class_type_info::__do_dyncast(__class_type_info::__dyncast_result&)
const’:
x.ii:40:62: internal compiler error: in copy_warning, at warning-control.cc:194
40 | (0) && (0 || (__flags)) || (__flags & __diamond_shaped_mask);
| ^
0x1508cce void copy_warning<tree_node*, tree_node const*>(tree_node*, tree_node
const*)
/home/marxin/Programming/gcc/gcc/warning-control.cc:194
0x9e3467 cp_fold
/home/marxin/Programming/gcc/gcc/cp/cp-gimplify.c:2718
0x9e53f0 cp_fold_maybe_rvalue(tree_node*, bool)
/home/marxin/Programming/gcc/gcc/cp/cp-gimplify.c:2109
0x9ecebf cp_convert_and_check(tree_node*, tree_node*, int)
/home/marxin/Programming/gcc/gcc/cp/cvt.c:666
0xbdd417 cp_build_binary_op(op_location_t const&, tree_code, tree_node*,
tree_node*, int)
/home/marxin/Programming/gcc/gcc/cp/typeck.c:5876
0x97efea build_new_op_1
/home/marxin/Programming/gcc/gcc/cp/call.c:6760
0x97fb81 build_new_op(op_location_t const&, tree_code, int, tree_node*,
tree_node*, tree_node*, tree_node**, int)
/home/marxin/Programming/gcc/gcc/cp/call.c:6806
0xbcf21f build_x_binary_op(op_location_t const&, tree_code, tree_node*,
tree_code, tree_node*, tree_code, tree_node**, int)
/home/marxin/Programming/gcc/gcc/cp/typeck.c:4330
0xae1c44 cp_parser_binary_expression
/home/marxin/Programming/gcc/gcc/cp/parser.c:10023
0xae244c cp_parser_assignment_expression
/home/marxin/Programming/gcc/gcc/cp/parser.c:10161
0xae3aea cp_parser_expression
/home/marxin/Programming/gcc/gcc/cp/parser.c:10331
0xae7188 cp_parser_expression_statement
/home/marxin/Programming/gcc/gcc/cp/parser.c:12075
0xaf34f6 cp_parser_statement
/home/marxin/Programming/gcc/gcc/cp/parser.c:11871
0xaf453e cp_parser_statement_seq_opt
/home/marxin/Programming/gcc/gcc/cp/parser.c:12223
0xaf4630 cp_parser_compound_statement
/home/marxin/Programming/gcc/gcc/cp/parser.c:12172
0xb12ff7 cp_parser_function_body
/home/marxin/Programming/gcc/gcc/cp/parser.c:24238
0xb12ff7 cp_parser_ctor_initializer_opt_and_function_body
/home/marxin/Programming/gcc/gcc/cp/parser.c:24289
0xb14bea cp_parser_function_definition_after_declarator
/home/marxin/Programming/gcc/gcc/cp/parser.c:30248
0xb1605d cp_parser_function_definition_from_specifiers_and_declarator
/home/marxin/Programming/gcc/gcc/cp/parser.c:30164
0xb1605d cp_parser_init_declarator
/home/marxin/Programming/gcc/gcc/cp/parser.c:21810
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
