http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58570
Bernd Edlinger <bernd.edlinger at hotmail dot de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bernd.edlinger at hotmail dot de --- Comment #1 from Bernd Edlinger <bernd.edlinger at hotmail dot de> --- Created attachment 30961 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30961&action=edit reduced test case the code generation is not aware that d[i].f0 and d[i].f1 overlap one byte.