https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108468
Bug ID: 108468
Summary: ICE in most_specialized_partial_spec/builtin_guide_p
in C++20 mode
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ed at catmur dot uk
Target Milestone: ---
Since 11.1, the following ices in -std=c++20 and later:
template<int> struct C { template<class, class> static constexpr int x = 1; };
template<int I> template<class... A> int C<I>::x<void(A...), void(A...)> = 2;
int y = C<0>::x<void(int), void()>;
0x23ae54e internal_error(char const*, ...)
???:0
0xc5b614 deduction_guide_p(tree_node const*)
???:0
0xc5be2c builtin_guide_p(tree_node const*)
???:0
0xc82bdf most_specialized_partial_spec(tree_node*, int)
???:0
0xc83a76 instantiate_template(tree_node*, tree_node*, int)
???:0
0xc8c0d8 finish_template_variable(tree_node*, int)
???:0
0xcce05f finish_id_expression(tree_node*, tree_node*, tree_node*, cp_id_kind*,
bool, bool, bool*, bool, bool, bool, bool, char const**, unsigned int)
???:0
