564   int max_reg = _regalloc->_max_reg; // Current array extent

   564   int max_reg = _regalloc->_max_reg; // Current array extent

   565 

   565 

   566   Arena *A = Thread::current()->resource_area();

   566   Arena *A = Thread::current()->resource_area();

   567   Block_List worklist;          // Worklist of pending blocks

   567   Block_List worklist;          // Worklist of pending blocks

   568 

   568 

   570   Dict *safehash = NULL;        // Used for assert only

   570   Dict *safehash = NULL;        // Used for assert only

   571   // Compute a backwards liveness per register.  Needs a bitarray of

   571   // Compute a backwards liveness per register.  Needs a bitarray of

   572   // #blocks x (#registers, rounded up to ints)

   572   // #blocks x (#registers, rounded up to ints)

   573   safehash = new Dict(cmpkey,hashkey,A);

   573   safehash = new Dict(cmpkey,hashkey,A);

   574   do_liveness( _regalloc, _cfg, &worklist, max_reg_ints, A, safehash );

   574   do_liveness( _regalloc, _cfg, &worklist, max_reg_ints, A, safehash );