--- a/hotspot/src/share/vm/opto/escape.cpp	Thu Jan 15 11:30:13 2015 +0100
+++ b/hotspot/src/share/vm/opto/escape.cpp	Mon Jan 19 09:32:40 2015 +0100
@@ -2010,14 +2010,9 @@
         bt = field->layout_type();
       } else {
         // Check for unsafe oop field access
-        for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
-          int opcode = n->fast_out(i)->Opcode();
-          if (opcode == Op_StoreP || opcode == Op_LoadP ||
-              opcode == Op_StoreN || opcode == Op_LoadN) {
-            bt = T_OBJECT;
-            (*unsafe) = true;
-            break;
-          }
+        if (n->has_out_with(Op_StoreP, Op_LoadP, Op_StoreN, Op_LoadN)) {
+          bt = T_OBJECT;
+          (*unsafe) = true;
         }
       }
     } else if (adr_type->isa_aryptr()) {
@@ -2031,13 +2026,8 @@
       }
     } else if (adr_type->isa_rawptr() || adr_type->isa_klassptr()) {
       // Allocation initialization, ThreadLocal field access, unsafe access
-      for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
-        int opcode = n->fast_out(i)->Opcode();
-        if (opcode == Op_StoreP || opcode == Op_LoadP ||
-            opcode == Op_StoreN || opcode == Op_LoadN) {
-          bt = T_OBJECT;
-          break;
-        }
+      if (n->has_out_with(Op_StoreP, Op_LoadP, Op_StoreN, Op_LoadN)) {
+        bt = T_OBJECT;
       }
     }
   }
@@ -3092,13 +3082,7 @@
         continue;
     } else if (n->Opcode() == Op_EncodeISOArray) {
       // get the memory projection
-      for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
-        Node *use = n->fast_out(i);
-        if (use->Opcode() == Op_SCMemProj) {
-          n = use;
-          break;
-        }
-      }
+      n = n->find_out_with(Op_SCMemProj);
       assert(n->Opcode() == Op_SCMemProj, "memory projection required");
     } else {
       assert(n->is_Mem(), "memory node required.");
@@ -3122,13 +3106,7 @@
         continue;  // don't push users
       } else if (n->is_LoadStore()) {
         // get the memory projection
-        for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
-          Node *use = n->fast_out(i);
-          if (use->Opcode() == Op_SCMemProj) {
-            n = use;
-            break;
-          }
-        }
+        n = n->find_out_with(Op_SCMemProj);
         assert(n->Opcode() == Op_SCMemProj, "memory projection required");
       }
     }