*** old/src/share/vm/opto/ifg.cpp	Thu Oct 10 15:28:48 2013
--- new/src/share/vm/opto/ifg.cpp	Thu Oct 10 15:28:48 2013

*** 675,685 ****
--- 675,685 ----
                lrg.SUBTRACT( rmask );
                lrg.compute_set_mask_size();
              } else {            // Common case: size 1 bound removal
                if( lrg.mask().Member(r_reg) ) {
                  lrg.Remove(r_reg);
!                 lrg.set_mask_size(lrg.mask().is_AllStack() ? 65535:old_size-1);
!                 lrg.set_mask_size(lrg.mask().is_AllStack() ? LRG::LRG_All_STACK_SIZE : old_size - 1);
                }
              }
              // If 'l' goes completely dry, it must spill.
              if( lrg.not_free() ) {
                // Give 'l' some kind of reasonable mask, so he picks up