https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63628
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- The second and third variants work in mainline.
paolo.carlini at oracle dot com Tue, 15 Dec 2015 02:26:31 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63628
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- The second and third variants work in mainline.