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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.
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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.ResolvedJavaType;

Extension of InvocationPlugins that disables plugins based on runtime configuration.
/** * Extension of {@link InvocationPlugins} that disables plugins based on runtime configuration. */
final class HotSpotInvocationPlugins extends InvocationPlugins { final GraalHotSpotVMConfig config; HotSpotInvocationPlugins(GraalHotSpotVMConfig config) { 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()); } }