[Bug c++/53401] [C++11] internal compiler error: Segmentation fault on infinite argument deduction of constexpr templates

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53401

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
In 5.x, 6.x and trunk this fails gracefully. I'm adding a testcase and closing
the bug.