http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54782
--- Comment #2 from Dehao Chen <dehao at google dot com> 2012-10-03 16:47:23 UTC --- Thanks for reporting this problem. The root cause has been identified that phi_arg_location is not correctly updated in move_block_to_fn. A patch is on the way. BTW, how can I assign this patch to me? Looks like there is no such a button in my view.