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 } |