src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/replacements/KlassLayoutHelperNode.java
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File hotspot Sdiff src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/replacements

src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/replacements/KlassLayoutHelperNode.java

Print this page




  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.replacements;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_4;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;
  27 
  28 import org.graalvm.compiler.core.common.type.ObjectStamp;
  29 import org.graalvm.compiler.core.common.type.Stamp;
  30 import org.graalvm.compiler.core.common.type.StampFactory;
  31 import org.graalvm.compiler.graph.Node;
  32 import org.graalvm.compiler.graph.NodeClass;
  33 import org.graalvm.compiler.graph.spi.Canonicalizable;
  34 import org.graalvm.compiler.graph.spi.CanonicalizerTool;
  35 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  36 import org.graalvm.compiler.nodeinfo.NodeInfo;
  37 import org.graalvm.compiler.nodes.ConstantNode;
  38 import org.graalvm.compiler.nodes.FloatingGuardedNode;
  39 import org.graalvm.compiler.nodes.ValueNode;
  40 import org.graalvm.compiler.nodes.extended.GuardingNode;
  41 import org.graalvm.compiler.nodes.extended.LoadHubNode;
  42 import org.graalvm.compiler.nodes.spi.Lowerable;
  43 import org.graalvm.compiler.nodes.spi.LoweringTool;
  44 
  45 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  46 import jdk.vm.ci.meta.Constant;
  47 import jdk.vm.ci.meta.JavaKind;
  48 import jdk.vm.ci.meta.ResolvedJavaType;
  49 
  50 /**
  51  * Read {@code Klass::_layout_helper} and incorporate any useful stamp information based on any type
  52  * information in {@code klass}.
  53  */
  54 @NodeInfo(cycles = CYCLES_4, size = SIZE_1)
  55 public final class KlassLayoutHelperNode extends FloatingGuardedNode implements Canonicalizable, Lowerable {
  56 
  57     public static final NodeClass<KlassLayoutHelperNode> TYPE = NodeClass.create(KlassLayoutHelperNode.class);
  58     @Input protected ValueNode klass;
  59     protected final GraalHotSpotVMConfig config;
  60 
  61     public KlassLayoutHelperNode(@InjectedNodeParameter GraalHotSpotVMConfig config, ValueNode klass) {
  62         this(config, klass, null);
  63     }
  64 
  65     public KlassLayoutHelperNode(@InjectedNodeParameter GraalHotSpotVMConfig config, ValueNode klass, ValueNode guard) {
  66         super(TYPE, StampFactory.forKind(JavaKind.Int), (GuardingNode) guard);
  67         this.klass = klass;
  68         this.config = config;

  69     }
  70 
  71     @Override
  72     public boolean inferStamp() {
  73         if (klass instanceof LoadHubNode) {
  74             LoadHubNode hub = (LoadHubNode) klass;
  75             Stamp hubStamp = hub.getValue().stamp();
  76             if (hubStamp instanceof ObjectStamp) {
  77                 ObjectStamp objectStamp = (ObjectStamp) hubStamp;
  78                 ResolvedJavaType type = objectStamp.type();
  79                 if (type != null && !type.isJavaLangObject()) {
  80                     if (!type.isArray() && !type.isInterface()) {
  81                         /*
  82                          * Definitely some form of instance type.
  83                          */
  84                         return updateStamp(StampFactory.forInteger(JavaKind.Int, config.klassLayoutHelperNeutralValue, Integer.MAX_VALUE));
  85                     }
  86                     if (type.isArray()) {
  87                         return updateStamp(StampFactory.forInteger(JavaKind.Int, Integer.MIN_VALUE, config.klassLayoutHelperNeutralValue - 1));
  88                     }




  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.replacements;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_4;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;
  27 
  28 import org.graalvm.compiler.core.common.type.ObjectStamp;
  29 import org.graalvm.compiler.core.common.type.Stamp;
  30 import org.graalvm.compiler.core.common.type.StampFactory;
  31 import org.graalvm.compiler.graph.Node;
  32 import org.graalvm.compiler.graph.NodeClass;
  33 import org.graalvm.compiler.graph.spi.Canonicalizable;
  34 import org.graalvm.compiler.graph.spi.CanonicalizerTool;
  35 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  36 import org.graalvm.compiler.nodeinfo.NodeInfo;
  37 import org.graalvm.compiler.nodes.ConstantNode;

  38 import org.graalvm.compiler.nodes.ValueNode;
  39 import org.graalvm.compiler.nodes.calc.FloatingNode;
  40 import org.graalvm.compiler.nodes.extended.LoadHubNode;
  41 import org.graalvm.compiler.nodes.spi.Lowerable;
  42 import org.graalvm.compiler.nodes.spi.LoweringTool;
  43 
  44 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  45 import jdk.vm.ci.meta.Constant;
  46 import jdk.vm.ci.meta.JavaKind;
  47 import jdk.vm.ci.meta.ResolvedJavaType;
  48 
  49 /**
  50  * Read {@code Klass::_layout_helper} and incorporate any useful stamp information based on any type
  51  * information in {@code klass}.
  52  */
  53 @NodeInfo(cycles = CYCLES_4, size = SIZE_1)
  54 public final class KlassLayoutHelperNode extends FloatingNode implements Canonicalizable, Lowerable {
  55 
  56     public static final NodeClass<KlassLayoutHelperNode> TYPE = NodeClass.create(KlassLayoutHelperNode.class);
  57     @Input protected ValueNode klass;
  58     protected final GraalHotSpotVMConfig config;
  59 
  60     public KlassLayoutHelperNode(@InjectedNodeParameter GraalHotSpotVMConfig config, ValueNode klass) {
  61         super(TYPE, StampFactory.forKind(JavaKind.Int));





  62         this.config = config;
  63         this.klass = klass;
  64     }
  65 
  66     @Override
  67     public boolean inferStamp() {
  68         if (klass instanceof LoadHubNode) {
  69             LoadHubNode hub = (LoadHubNode) klass;
  70             Stamp hubStamp = hub.getValue().stamp();
  71             if (hubStamp instanceof ObjectStamp) {
  72                 ObjectStamp objectStamp = (ObjectStamp) hubStamp;
  73                 ResolvedJavaType type = objectStamp.type();
  74                 if (type != null && !type.isJavaLangObject()) {
  75                     if (!type.isArray() && !type.isInterface()) {
  76                         /*
  77                          * Definitely some form of instance type.
  78                          */
  79                         return updateStamp(StampFactory.forInteger(JavaKind.Int, config.klassLayoutHelperNeutralValue, Integer.MAX_VALUE));
  80                     }
  81                     if (type.isArray()) {
  82                         return updateStamp(StampFactory.forInteger(JavaKind.Int, Integer.MIN_VALUE, config.klassLayoutHelperNeutralValue - 1));
  83                     }


src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/replacements/KlassLayoutHelperNode.java
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File