1 /* 2 * Copyright (c) 2015, 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.meta; 24 25 import java.lang.reflect.Type; 26 27 import org.graalvm.compiler.core.common.GraalOptions; 28 import org.graalvm.compiler.graph.Node; 29 import org.graalvm.compiler.graph.iterators.NodeIterable; 30 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; 31 import org.graalvm.compiler.hotspot.phases.AheadOfTimeVerificationPhase; 32 import org.graalvm.compiler.nodes.ConstantNode; 33 import org.graalvm.compiler.nodes.FrameState; 34 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext; 35 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin; 36 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins; 37 import org.graalvm.compiler.nodes.type.StampTool; 38 import org.graalvm.compiler.replacements.nodes.MacroNode; 39 40 import jdk.vm.ci.meta.JavaKind; 41 import jdk.vm.ci.meta.MetaAccessProvider; 42 import jdk.vm.ci.meta.ResolvedJavaType; 43 44 /** 45 * Extension of {@link InvocationPlugins} that disables plugins based on runtime configuration. 46 */ 47 final class HotSpotInvocationPlugins extends InvocationPlugins { 48 final GraalHotSpotVMConfig config; 49 50 HotSpotInvocationPlugins(GraalHotSpotVMConfig config, MetaAccessProvider metaAccess) { 51 super(metaAccess); 52 this.config = config; 53 } 54 55 @Override 56 public void register(InvocationPlugin plugin, Type declaringClass, String name, Type... argumentTypes) { 57 if (!config.usePopCountInstruction) { 58 if (name.equals("bitCount")) { 59 assert declaringClass.equals(Integer.class) || declaringClass.equals(Long.class); 60 return; 61 } 62 } 63 super.register(plugin, declaringClass, name, argumentTypes); 64 } 65 66 @Override 67 public void checkNewNodes(GraphBuilderContext b, InvocationPlugin plugin, NodeIterable<Node> newNodes) { 68 for (Node node : newNodes) { 69 if (node instanceof MacroNode) { 70 // MacroNode based plugins can only be used for inlining since they 71 // require a valid bci should they need to replace themselves with 72 // an InvokeNode during lowering. 73 assert plugin.inlineOnly() : String.format("plugin that creates a %s (%s) must return true for inlineOnly(): %s", MacroNode.class.getSimpleName(), node, plugin); 74 } 75 } 76 if (GraalOptions.ImmutableCode.getValue()) { 77 for (Node node : newNodes) { 78 if (node.hasUsages() && node instanceof ConstantNode) { 79 ConstantNode c = (ConstantNode) node; 80 if (c.getStackKind() == JavaKind.Object && AheadOfTimeVerificationPhase.isIllegalObjectConstant(c)) { 81 if (isClass(c)) { 82 // This will be handled later by LoadJavaMirrorWithKlassPhase 83 } else { 84 // Tolerate uses in unused FrameStates 85 if (node.usages().filter((n) -> !(n instanceof FrameState) || n.hasUsages()).isNotEmpty()) { 86 throw new AssertionError("illegal constant node in AOT: " + node); 87 } 88 } 89 } 90 } 91 } 92 } 93 super.checkNewNodes(b, plugin, newNodes); 94 } 95 96 private static boolean isClass(ConstantNode node) { 97 ResolvedJavaType type = StampTool.typeOrNull(node); 98 return type != null && "Ljava/lang/Class;".equals(type.getName()); 99 } 100 }