http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56756
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> 2013-03-28 09:54:58 UTC --- It seems that move_computations_stmt firstly inserts into bb 11 # VUSE <.MEM_21> D__lsm.5 = *_17; and then # VUSE <.MEM_21> _17 = *q_8(D); move_computations then commits these inserts.