http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48695
--- Comment #6 from Zdenek Sojka <zsojka at seznam dot cz> 2011-04-19 23:06:31 UTC --- Created attachment 24050 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24050 reduced testcase I am not sure if it is reduced correctly. However, -fno-strict-aliasing prevents the crash.