by one. Take care of restoring the dirty partition before switching back
to original backing store.
(LD_LOC): Load only 4 bytes, not 8 bytes.
(CK_LOC): New macro.
(loadup): ar.pfs is saved in r36, not r34. After returning from subroutine call,
check local variables to make sure they still contain the correct values.
(resumption_point): New function.
(Logical change 1.49)