https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99869
Bug ID: 99869
Summary: ICE: in do_auto_deduction, at cp/pt.c:29620
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: hewillk at gmail dot com
Target Milestone: ---
This is a small variant of fixed PR 99815.
https://godbolt.org/z/jezs4qh3E
template <typename...> concept C = true;
template <typename... Ts>
auto bar(Ts...) { for (C<Ts...> auto c : ""); }
<source>:4:42: internal compiler error: in do_auto_deduction, at cp/pt.c:29620
4 | auto bar(Ts...) { for (C<Ts...> auto c : ""); }
| ^~
0x1cfca39 internal_error(char const*, ...)
???:0
0x6ba92b fancy_abort(char const*, int, char const*)
???:0
0x90a724 do_auto_deduction(tree_node*, tree_node*, tree_node*, int,
auto_deduction_context, tree_node*, int)
???:0
0x8e126d c_parse_file()
???:0
0xa60292 c_common_parse_file()
???:0
Please submit a full bug report,
with preprocessed source if appropriate.
