src/share/vm/opto/matcher.cpp

*** 2115,2124 ****
--- 2115,2126 ----
        case Op_AryEq:
        case Op_HasNegatives:
        case Op_StrInflatedCopy:
        case Op_StrCompressedCopy:
        case Op_EncodeISOArray:
+       case Op_FmaD:
+       case Op_FmaF:
          set_shared(n); // Force result into register (it will be anyways)
          break;
        case Op_ConP: {  // Convert pointers above the centerline to NUL
          TypeNode *tn = n->as_Type(); // Constants derive from type nodes
          const TypePtr* tp = tn->type()->is_ptr();
*** 2303,2312 ****
--- 2305,2323 ----
          Node* pair = new BinaryNode(n->in(3), n->in(4));
          n->set_req(3, pair);
          n->del_req(4);
          break;
        }
+       case Op_FmaD:
+       case Op_FmaF: {
+         // Restructure into a binary tree for Matching.
+         Node* pair = new BinaryNode(n->in(1), n->in(2));
+         n->set_req(2, pair);
+         n->set_req(1, n->in(3));
+         n->del_req(3);
+         break;
+       }
        default:
          break;
        }
      }
      else {