http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47936
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Status|UNCONFIRMED |NEW Last reconfirmed| |2011.03.01 10:28:51 Target Milestone|--- |4.6.0 Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-01 10:28:51 UTC --- Confirmed. This one happens because we merge struct S and struct T for TBAA purposes (they get the same TYPE_CANONICAL). This is by design to allow cross-language (and slightly invalid) code to not fall over TBAA issues too easily.