https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65951
--- Comment #9 from Jim Wilson <wilson at gcc dot gnu.org> --- Created attachment 38398 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38398&action=edit testcase signed long multiply by constant
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65951
--- Comment #9 from Jim Wilson <wilson at gcc dot gnu.org> --- Created attachment 38398 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38398&action=edit testcase signed long multiply by constant