gistfile1.diff

   BB 1:
     Instructions:
-      checkarity liti16(1), liti16(1)
-      param_rp_o r0(1), liti16(0)
-      paramnamesused 
-      decont r1(1), r0(1)
+      sp_getarg_o r0(1), liti16(0)
+      set r1(1), r0(1)
       wval r2(1), liti16(0), liti16(9)
+      sp_p6oget_o r3(1), r1(1), liti16(24)
       [Annotation: INS Deopt One (idx 0 -> pc 42)]
-      getattr_o r3(1), r1(1), r2(1), lits($!has_type), liti16(2)
-      decont r5(1), r3(1)
-      unless_o r5(1), BB(3)
+      sp_guardconc r3(1), sslot(0)
+      unless_i r6(0), BB(3)
     Successors: 3, 2
     Predeccessors: 0
     Dominance children: 2, 3, 4