http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49094
--- Comment #3 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-06-11 19:12:16 UTC --- Just for the record, I am aware of this bug, I have managed to reproduce it on the sparc64 in the compile farm and have had a look at it a few times already (albeit so far only briefly). A few mechanisms within SRA come into play as we generate the integer load statement which is wrong: pkt_dst$s_addr_8 = MEM[(struct ip *)ip_3 + 7B].s_addr; I will continue to try to figure out what to do about this but it is not very straightforward.