https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79027
--- Comment #10 from John David Anglin <danglin at gcc dot gnu.org> --- Author: danglin Date: Wed May 10 23:08:32 2017 New Revision: 247870 URL: https://gcc.gnu.org/viewcvs?rev=247870&root=gcc&view=rev Log: PR target/79027 * config/pa/pa.c (pa_cannot_change_mode_class): Reject changes to/from modes with zero size. Enhance comment. Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/config/pa/pa.c