| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.hotspot.meta; |
| |
| import java.lang.reflect.Type; |
| |
| import org.graalvm.compiler.core.common.GraalOptions; |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.graph.iterators.NodeIterable; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.hotspot.phases.AheadOfTimeVerificationPhase; |
| import org.graalvm.compiler.nodes.ConstantNode; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext; |
| import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin; |
| import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins; |
| import org.graalvm.compiler.nodes.type.StampTool; |
| import org.graalvm.compiler.replacements.nodes.MacroNode; |
| |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.MetaAccessProvider; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| /** |
| * Extension of {@link InvocationPlugins} that disables plugins based on runtime configuration. |
| */ |
| final class HotSpotInvocationPlugins extends InvocationPlugins { |
| final GraalHotSpotVMConfig config; |
| |
| HotSpotInvocationPlugins(GraalHotSpotVMConfig config, MetaAccessProvider metaAccess) { |
| super(metaAccess); |
| this.config = config; |
| } |
| |
| @Override |
| public void register(InvocationPlugin plugin, Type declaringClass, String name, Type... argumentTypes) { |
| if (!config.usePopCountInstruction) { |
| if (name.equals("bitCount")) { |
| assert declaringClass.equals(Integer.class) || declaringClass.equals(Long.class); |
| return; |
| } |
| } |
| super.register(plugin, declaringClass, name, argumentTypes); |
| } |
| |
| @Override |
| public void checkNewNodes(GraphBuilderContext b, InvocationPlugin plugin, NodeIterable<Node> newNodes) { |
| for (Node node : newNodes) { |
| if (node instanceof MacroNode) { |
| // MacroNode based plugins can only be used for inlining since they |
| // require a valid bci should they need to replace themselves with |
| // an InvokeNode during lowering. |
| assert plugin.inlineOnly() : String.format("plugin that creates a %s (%s) must return true for inlineOnly(): %s", MacroNode.class.getSimpleName(), node, plugin); |
| } |
| } |
| if (GraalOptions.ImmutableCode.getValue()) { |
| for (Node node : newNodes) { |
| if (node.hasUsages() && node instanceof ConstantNode) { |
| ConstantNode c = (ConstantNode) node; |
| if (c.getStackKind() == JavaKind.Object && AheadOfTimeVerificationPhase.isIllegalObjectConstant(c)) { |
| if (isClass(c)) { |
| // This will be handled later by LoadJavaMirrorWithKlassPhase |
| } else { |
| // Tolerate uses in unused FrameStates |
| if (node.usages().filter((n) -> !(n instanceof FrameState) || n.hasUsages()).isNotEmpty()) { |
| throw new AssertionError("illegal constant node in AOT: " + node); |
| } |
| } |
| } |
| } |
| } |
| } |
| super.checkNewNodes(b, plugin, newNodes); |
| } |
| |
| private static boolean isClass(ConstantNode node) { |
| ResolvedJavaType type = StampTool.typeOrNull(node); |
| return type != null && "Ljava/lang/Class;".equals(type.getName()); |
| } |
| } |