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/*
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* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.graalvm.compiler.replacements.test;
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import static org.graalvm.compiler.nodeinfo.InputType.Guard;
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import static org.graalvm.compiler.nodeinfo.InputType.Memory;
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import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_IGNORED;
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import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_IGNORED;
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import static org.hamcrest.CoreMatchers.instanceOf;
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import org.graalvm.compiler.api.replacements.ClassSubstitution;
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import org.graalvm.compiler.api.replacements.MethodSubstitution;
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import org.graalvm.compiler.core.common.type.StampFactory;
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import org.graalvm.compiler.graph.NodeClass;
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import org.graalvm.compiler.graph.iterators.NodeIterable;
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import org.graalvm.compiler.nodeinfo.NodeInfo;
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import org.graalvm.compiler.nodeinfo.StructuralInput.Guard;
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import org.graalvm.compiler.nodeinfo.StructuralInput.Memory;
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import org.graalvm.compiler.nodes.ConstantNode;
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import org.graalvm.compiler.nodes.FixedWithNextNode;
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import org.graalvm.compiler.nodes.ReturnNode;
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import org.graalvm.compiler.nodes.StructuredGraph;
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import org.graalvm.compiler.nodes.ValueNode;
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import org.graalvm.compiler.nodes.calc.FloatingNode;
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import org.graalvm.compiler.nodes.extended.GuardingNode;
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import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;
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import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration;
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import org.graalvm.compiler.nodes.memory.MemoryNode;
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import org.graalvm.compiler.replacements.classfile.ClassfileBytecodeProvider;
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import org.junit.Assert;
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import org.junit.Test;
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import jdk.vm.ci.meta.JavaKind;
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public class SubstitutionsTest extends ReplacementsTest {
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@NodeInfo(allowedUsageTypes = {Memory}, cycles = CYCLES_IGNORED, size = SIZE_IGNORED)
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static class TestMemory extends FixedWithNextNode implements MemoryNode {
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private static final NodeClass<TestMemory> TYPE = NodeClass.create(TestMemory.class);
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protected TestMemory() {
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super(TYPE, StampFactory.forVoid());
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}
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@NodeIntrinsic
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public static native Memory memory();
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}
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@NodeInfo(allowedUsageTypes = {Guard}, cycles = CYCLES_IGNORED, size = SIZE_IGNORED)
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static class TestGuard extends FloatingNode implements GuardingNode {
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private static final NodeClass<TestGuard> TYPE = NodeClass.create(TestGuard.class);
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@Input(Memory) MemoryNode memory;
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protected TestGuard(ValueNode memory) {
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super(TYPE, StampFactory.forVoid());
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this.memory = (MemoryNode) memory;
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}
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@NodeIntrinsic
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public static native Guard guard(Memory memory);
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}
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@NodeInfo(cycles = CYCLES_IGNORED, size = SIZE_IGNORED)
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static class TestValue extends FloatingNode {
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private static final NodeClass<TestValue> TYPE = NodeClass.create(TestValue.class);
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@Input(Guard) GuardingNode guard;
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protected TestValue(ValueNode guard) {
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super(TYPE, StampFactory.forKind(JavaKind.Int));
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this.guard = (GuardingNode) guard;
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}
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@NodeIntrinsic
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public static native int value(Guard guard);
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}
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private static class TestMethod {
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public static int test() {
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return 42;
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}
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}
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@ClassSubstitution(TestMethod.class)
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private static class TestMethodSubstitution {
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@MethodSubstitution
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public static int test() {
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Memory memory = TestMemory.memory();
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Guard guard = TestGuard.guard(memory);
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return TestValue.value(guard);
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}
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}
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@Override
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protected void registerInvocationPlugins(InvocationPlugins invocationPlugins) {
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new PluginFactory_SubstitutionsTest().registerPlugins(invocationPlugins, null);
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ClassfileBytecodeProvider bytecodeProvider = getSystemClassLoaderBytecodeProvider();
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Registration r = new Registration(invocationPlugins, TestMethod.class, getReplacements(), bytecodeProvider);
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r.registerMethodSubstitution(TestMethodSubstitution.class, "test");
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super.registerInvocationPlugins(invocationPlugins);
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}
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public static int callTest() {
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return TestMethod.test();
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}
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@Override
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protected void checkHighTierGraph(StructuredGraph graph) {
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// Check that the graph contains the expected test nodes.
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NodeIterable<ReturnNode> retNodes = graph.getNodes().filter(ReturnNode.class);
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Assert.assertTrue("expected exactly one ReturnNode", retNodes.count() == 1);
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ReturnNode ret = retNodes.first();
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Assert.assertThat(ret.result(), instanceOf(TestValue.class));
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TestValue value = (TestValue) ret.result();
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Assert.assertThat(value.guard, instanceOf(TestGuard.class));
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TestGuard guard = (TestGuard) value.guard;
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Assert.assertThat(guard.memory, instanceOf(TestMemory.class));
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TestMemory memory = (TestMemory) guard.memory;
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// Remove the test nodes, replacing them by the constant 42.
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// This implicitly makes sure that the rest of the graph is valid.
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ret.replaceFirstInput(value, graph.unique(ConstantNode.forInt(42)));
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value.safeDelete();
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guard.safeDelete();
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graph.removeFixed(memory);
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}
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@Test
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public void snippetTest() {
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test("callTest");
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}
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}
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