http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56250
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-08 11:24:02 UTC --- Created attachment 29394 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29394 gcc48-pr56250.patch Untested fix. I believe only division/modulus is problematic, not multiplication, and I think -fwrapv signed types are fine too. For *_DIV_EXPR/*_MOD_EXPR, I think wide_type is always NULL_TREE and ctype is always equal to type.
