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.replacements.nodes;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_8;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_8;
  27 
  28 import java.util.Collections;
  29 
  30 import org.graalvm.compiler.core.common.type.ObjectStamp;
  31 import org.graalvm.compiler.core.common.type.Stamp;
  32 import org.graalvm.compiler.core.common.type.StampFactory;
  33 import org.graalvm.compiler.core.common.type.StampPair;
  34 import org.graalvm.compiler.graph.NodeClass;

  35 import org.graalvm.compiler.nodeinfo.NodeInfo;
  36 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind;
  37 import org.graalvm.compiler.nodes.ValueNode;
  38 import org.graalvm.compiler.nodes.java.LoadFieldNode;
  39 import org.graalvm.compiler.nodes.java.MonitorIdNode;
  40 import org.graalvm.compiler.nodes.spi.ArrayLengthProvider;
  41 import org.graalvm.compiler.nodes.spi.VirtualizableAllocation;
  42 import org.graalvm.compiler.nodes.spi.VirtualizerTool;
  43 import org.graalvm.compiler.nodes.util.GraphUtil;
  44 import org.graalvm.compiler.nodes.virtual.VirtualInstanceNode;
  45 import org.graalvm.compiler.nodes.virtual.VirtualObjectNode;
  46 
  47 import jdk.vm.ci.meta.Assumptions;
  48 import jdk.vm.ci.meta.ResolvedJavaField;
  49 import jdk.vm.ci.meta.ResolvedJavaMethod;
  50 import jdk.vm.ci.meta.ResolvedJavaType;
  51 
  52 @NodeInfo(cycles = CYCLES_8, size = SIZE_8)
  53 public abstract class BasicObjectCloneNode extends MacroStateSplitNode implements VirtualizableAllocation, ArrayLengthProvider {
  54 
  55     public static final NodeClass<BasicObjectCloneNode> TYPE = NodeClass.create(BasicObjectCloneNode.class);
  56 
  57     public BasicObjectCloneNode(NodeClass<? extends MacroNode> c, InvokeKind invokeKind, ResolvedJavaMethod targetMethod, int bci, StampPair returnStamp, ValueNode... arguments) {
  58         super(c, invokeKind, targetMethod, bci, returnStamp, arguments);
  59         updateStamp(computeStamp(getObject()));
  60     }
  61 
  62     @Override
  63     public boolean inferStamp() {
  64         return updateStamp(computeStamp(getObject()));
  65     }
  66 
  67     protected Stamp computeStamp(ValueNode object) {
  68         Stamp objectStamp = object.stamp();
  69         if (objectStamp instanceof ObjectStamp) {
  70             objectStamp = objectStamp.join(StampFactory.objectNonNull());
  71         }
  72         return objectStamp;

   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.replacements.nodes;
  24 

  25 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_8;
  26 
  27 import java.util.Collections;
  28 
  29 import org.graalvm.compiler.core.common.type.ObjectStamp;
  30 import org.graalvm.compiler.core.common.type.Stamp;
  31 import org.graalvm.compiler.core.common.type.StampFactory;
  32 import org.graalvm.compiler.core.common.type.StampPair;
  33 import org.graalvm.compiler.graph.NodeClass;
  34 import org.graalvm.compiler.nodeinfo.NodeCycles;
  35 import org.graalvm.compiler.nodeinfo.NodeInfo;
  36 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind;
  37 import org.graalvm.compiler.nodes.ValueNode;
  38 import org.graalvm.compiler.nodes.java.LoadFieldNode;
  39 import org.graalvm.compiler.nodes.java.MonitorIdNode;
  40 import org.graalvm.compiler.nodes.spi.ArrayLengthProvider;
  41 import org.graalvm.compiler.nodes.spi.VirtualizableAllocation;
  42 import org.graalvm.compiler.nodes.spi.VirtualizerTool;
  43 import org.graalvm.compiler.nodes.util.GraphUtil;
  44 import org.graalvm.compiler.nodes.virtual.VirtualInstanceNode;
  45 import org.graalvm.compiler.nodes.virtual.VirtualObjectNode;
  46 
  47 import jdk.vm.ci.meta.Assumptions;
  48 import jdk.vm.ci.meta.ResolvedJavaField;
  49 import jdk.vm.ci.meta.ResolvedJavaMethod;
  50 import jdk.vm.ci.meta.ResolvedJavaType;
  51 
  52 @NodeInfo(cycles = NodeCycles.CYCLES_UNKNOWN, size = SIZE_8)
  53 public abstract class BasicObjectCloneNode extends MacroStateSplitNode implements VirtualizableAllocation, ArrayLengthProvider {
  54 
  55     public static final NodeClass<BasicObjectCloneNode> TYPE = NodeClass.create(BasicObjectCloneNode.class);
  56 
  57     public BasicObjectCloneNode(NodeClass<? extends MacroNode> c, InvokeKind invokeKind, ResolvedJavaMethod targetMethod, int bci, StampPair returnStamp, ValueNode... arguments) {
  58         super(c, invokeKind, targetMethod, bci, returnStamp, arguments);
  59         updateStamp(computeStamp(getObject()));
  60     }
  61 
  62     @Override
  63     public boolean inferStamp() {
  64         return updateStamp(computeStamp(getObject()));
  65     }
  66 
  67     protected Stamp computeStamp(ValueNode object) {
  68         Stamp objectStamp = object.stamp();
  69         if (objectStamp instanceof ObjectStamp) {
  70             objectStamp = objectStamp.join(StampFactory.objectNonNull());
  71         }
  72         return objectStamp;