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src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/ComputeObjectAddressNode.java

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  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 
  24 
  25 package org.graalvm.compiler.nodes;
  26 
  27 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_1;
  28 
  29 import org.graalvm.compiler.core.common.type.StampFactory;
  30 import org.graalvm.compiler.graph.NodeClass;
  31 import org.graalvm.compiler.nodeinfo.NodeInfo;
  32 import org.graalvm.compiler.nodeinfo.NodeSize;

  33 import org.graalvm.compiler.nodes.debug.ControlFlowAnchored;
  34 import org.graalvm.compiler.nodes.spi.Lowerable;
  35 import org.graalvm.compiler.nodes.spi.LoweringTool;
  36 
  37 import jdk.vm.ci.meta.JavaKind;
  38 
  39 /**
  40  * A high-level intrinsic for getting an address inside of an object. During lowering it will be
  41  * moved next to any uses to avoid creating a derived pointer that is live across a safepoint.
  42  */
  43 @NodeInfo(cycles = CYCLES_1, size = NodeSize.SIZE_1)
  44 public final class ComputeObjectAddressNode extends FixedWithNextNode implements Lowerable, ControlFlowAnchored {
  45     public static final NodeClass<ComputeObjectAddressNode> TYPE = NodeClass.create(ComputeObjectAddressNode.class);
  46 
  47     @Input ValueNode object;
  48     @Input ValueNode offset;
  49 
  50     public ComputeObjectAddressNode(ValueNode obj, ValueNode offset) {
  51         super(TYPE, StampFactory.forKind(JavaKind.Long));
  52         this.object = obj;
  53         this.offset = offset;
  54     }
  55 
  56     @NodeIntrinsic
  57     public static native long get(Object array, long offset);
  58 
  59     @Override
  60     public void lower(LoweringTool tool) {
  61         tool.getLowerer().lower(this, tool);
  62     }
  63 
  64     public ValueNode getObject() {
  65         return object;
  66     }
  67 
  68     public ValueNode getOffset() {
  69         return offset;
  70     }
  71 }


  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 
  24 
  25 package org.graalvm.compiler.nodes;
  26 
  27 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_1;
  28 
  29 import org.graalvm.compiler.core.common.type.StampFactory;
  30 import org.graalvm.compiler.graph.NodeClass;
  31 import org.graalvm.compiler.nodeinfo.NodeInfo;
  32 import org.graalvm.compiler.nodeinfo.NodeSize;
  33 import org.graalvm.compiler.nodes.calc.SignExtendNode;
  34 import org.graalvm.compiler.nodes.debug.ControlFlowAnchored;
  35 import org.graalvm.compiler.nodes.spi.Lowerable;
  36 import org.graalvm.compiler.nodes.spi.LoweringTool;
  37 
  38 import jdk.vm.ci.meta.JavaKind;
  39 
  40 /**
  41  * A high-level intrinsic for getting an address inside of an object. During lowering it will be
  42  * moved next to any uses to avoid creating a derived pointer that is live across a safepoint.
  43  */
  44 @NodeInfo(cycles = CYCLES_1, size = NodeSize.SIZE_1)
  45 public final class ComputeObjectAddressNode extends FixedWithNextNode implements Lowerable, ControlFlowAnchored {
  46     public static final NodeClass<ComputeObjectAddressNode> TYPE = NodeClass.create(ComputeObjectAddressNode.class);
  47 
  48     @Input ValueNode object;
  49     @Input ValueNode offset;
  50 
  51     public ComputeObjectAddressNode(ValueNode obj, ValueNode offset) {
  52         super(TYPE, StampFactory.forKind(JavaKind.Long));
  53         this.object = obj;
  54         this.offset = SignExtendNode.create(offset, 64, NodeView.DEFAULT);
  55     }
  56 
  57     @NodeIntrinsic
  58     public static native long get(Object array, long offset);
  59 
  60     @Override
  61     public void lower(LoweringTool tool) {
  62         tool.getLowerer().lower(this, tool);
  63     }
  64 
  65     public ValueNode getObject() {
  66         return object;
  67     }
  68 
  69     public ValueNode getOffset() {
  70         return offset;
  71     }
  72 }
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