https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126749
Bug ID: 126749
Summary: ICE in build_simple_base_path when initializing a
static member of an incomplete derived class
Product: gcc
Version: 17.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: s.kimura.h41104 at gmail dot com
Target Milestone: ---
Compiler Explorer: https://godbolt.org/z/jox7nhexd
Reproducer:
```
struct S {
int foo;
S operator|(S) const;
};
struct SS : S {
static const SS ss;
static const SS bar = SS{ss | ss};
}
```
Backtrace:
<source>:8:33: error: cannot convert from 'SS' to base class 'S' because 'SS'
is incomplete
8 | static const SS bar = SS{ss | ss};
| ^~
<source>:8:33: internal compiler error: in build_simple_base_path, at
cp/class.cc:613
0x2b97f28 diagnostics::context::diagnostic_impl(rich_location*,
diagnostics::metadata const*, diagnostics::option_id, char const*,
__va_list_tag (*) [1], diagnostics::kind)
???:0
0x2b8cb6b internal_error(char const*, ...)
???:0
0xb40b7e fancy_abort(char const*, int, char const*)
???:0
0xb99c28 build_base_path(tree_code, tree_node*, tree_node*, int, int)
???:0
0xb628f3 build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, tree_node*, int, tree_node**, int)
???:0
0xb63c4d build_special_member_call(tree_node*, tree_node*, vec<tree_node*,
va_gc, vl_embed>**, tree_node*, int, int)
???:0
0xb7d24a build_new_op(op_location_t const&, tree_code, int, tree_node*,
tree_node*, tree_node*, tree_node*, tree_node**, int)
???:0
0xe800c2 build_x_binary_op(op_location_t const&, tree_code, tree_node*,
tree_code, tree_node*, tree_code, tree_node*, tree_node**, int)
???:0
0xd96823 c_parse_file()
???:0
0xf29cf9 c_common_parse_file()
???:0
