1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.hotspot.nodes;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_20;
  26 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_30;
  27 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_20;
  28 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_30;
  29 
  30 import org.graalvm.compiler.graph.Node;
  31 import org.graalvm.compiler.hotspot.replacements.ObjectCloneNode;
  32 import org.graalvm.compiler.nodeinfo.NodeCycles;
  33 import org.graalvm.compiler.nodeinfo.NodeSize;
  34 import org.graalvm.compiler.nodes.spi.DefaultNodeCostProvider;
  35 import org.graalvm.compiler.nodes.type.StampTool;
  36 
  37 import jdk.vm.ci.meta.ResolvedJavaType;
  38 
  39 public abstract class HotSpotNodeCostProvider extends DefaultNodeCostProvider {
  40 
  41     @Override
  42     public NodeSize size(Node n) {
  43         if (n instanceof ObjectCloneNode) {
  44             ResolvedJavaType type = StampTool.typeOrNull(((ObjectCloneNode) n).getObject());
  45             if (type != null) {
  46                 if (type.isArray()) {
  47                     return SIZE_30;
  48                 } else {
  49                     return SIZE_20;
  50                 }
  51             }
  52         }
  53         return super.size(n);
  54     }
  55 
  56     @Override
  57     public NodeCycles cycles(Node n) {
  58         if (n instanceof ObjectCloneNode) {
  59             ResolvedJavaType type = StampTool.typeOrNull(((ObjectCloneNode) n).getObject());
  60             if (type != null) {
  61                 if (type.isArray()) {
  62                     return CYCLES_30;
  63                 } else {
  64                     return CYCLES_20;
  65                 }
  66             }
  67         }
  68         return super.cycles(n);
  69     }
  70 
  71 }