http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48462
--- Comment #10 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-04-19 16:32:41 UTC --- Note: The commit from comment 9 fixes only the issue for non-TARGET LHS. If the LHS has the TARGET attribute (and only* then) a version with an additional temporary has to be used to make sure that associated pointers still work; the standard mandates this for the case that the shape of the RHS is the same as the one on the LHS. (* the reason of the only is performance not semantics)