https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127420
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> --- Created attachment 65605 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65605&action=edit A patch I am testing this. 1096 UD2s are generated in cc1plus.
