--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/ea/EATestBase.java 2016-12-07 13:48:40.838307683 -0800 @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2011, 2014, 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.core.test.ea; + +import java.util.List; + +import jdk.vm.ci.meta.JavaConstant; +import jdk.vm.ci.meta.ResolvedJavaMethod; + +import org.junit.Assert; + +import org.graalvm.compiler.core.test.GraalCompilerTest; +import org.graalvm.compiler.debug.Debug; +import org.graalvm.compiler.debug.Debug.Scope; +import org.graalvm.compiler.nodes.ReturnNode; +import org.graalvm.compiler.nodes.StructuredGraph; +import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; +import org.graalvm.compiler.nodes.java.NewArrayNode; +import org.graalvm.compiler.nodes.java.NewInstanceNode; +import org.graalvm.compiler.nodes.virtual.CommitAllocationNode; +import org.graalvm.compiler.phases.common.CanonicalizerPhase; +import org.graalvm.compiler.phases.common.DeadCodeEliminationPhase; +import org.graalvm.compiler.phases.common.inlining.InliningPhase; +import org.graalvm.compiler.phases.tiers.HighTierContext; +import org.graalvm.compiler.virtual.phases.ea.PartialEscapePhase; + +//JaCoCo Exclude + +/** + * This base class for all Escape Analysis tests does not contain tests itself, therefore it is not + * automatically excluded from JaCoCo. Since it includes code that is used in the test snippets, it + * needs to be excluded manually. + */ +public class EATestBase extends GraalCompilerTest { + + public static class TestClassInt { + public int x; + public int y; + public int z; + + public TestClassInt() { + this(0, 0); + } + + public TestClassInt(int x) { + this(x, 0); + } + + public TestClassInt(int x, int y) { + this.x = x; + this.y = y; + } + + @Override + public boolean equals(Object obj) { + TestClassInt other = (TestClassInt) obj; + return x == other.x && y == other.y && z == other.z; + } + + @Override + public String toString() { + return "{" + x + "," + y + "}"; + } + + @Override + public int hashCode() { + return x + 13 * y; + } + } + + public static class TestClassObject { + public Object x; + public Object y; + + public TestClassObject() { + this(null, null); + } + + public TestClassObject(Object x) { + this(x, null); + } + + public TestClassObject(Object x, Object y) { + this.x = x; + this.y = y; + } + + @Override + public boolean equals(Object obj) { + TestClassObject other = (TestClassObject) obj; + return x == other.x && y == other.y; + } + + @Override + public String toString() { + return "{" + x + "," + y + "}"; + } + + @Override + public int hashCode() { + return (x == null ? 0 : x.hashCode()) + 13 * (y == null ? 0 : y.hashCode()); + } + } + + protected static native void notInlineable(); + + protected StructuredGraph graph; + protected HighTierContext context; + protected List returnNodes; + + /** + * Runs Escape Analysis on the given snippet and makes sure that no allocations remain in the + * graph. + * + * @param snippet the name of the method whose graph should be processed + * @param expectedConstantResult if this is non-null, the resulting graph needs to have the + * given constant return value + * @param iterativeEscapeAnalysis true if escape analysis should be run for more than one + * iteration + */ + protected void testEscapeAnalysis(String snippet, JavaConstant expectedConstantResult, boolean iterativeEscapeAnalysis) { + prepareGraph(snippet, iterativeEscapeAnalysis); + if (expectedConstantResult != null) { + for (ReturnNode returnNode : returnNodes) { + Assert.assertTrue(returnNode.result().toString(), returnNode.result().isConstant()); + Assert.assertEquals(expectedConstantResult, returnNode.result().asConstant()); + } + } + int newInstanceCount = graph.getNodes().filter(NewInstanceNode.class).count() + graph.getNodes().filter(NewArrayNode.class).count() + + graph.getNodes().filter(CommitAllocationNode.class).count(); + Assert.assertEquals(0, newInstanceCount); + } + + @SuppressWarnings("try") + protected void prepareGraph(String snippet, boolean iterativeEscapeAnalysis) { + ResolvedJavaMethod method = getResolvedJavaMethod(snippet); + try (Scope s = Debug.scope(getClass(), method, getCodeCache())) { + graph = parseEager(method, AllowAssumptions.YES); + context = getDefaultHighTierContext(); + new InliningPhase(new CanonicalizerPhase()).apply(graph, context); + new DeadCodeEliminationPhase().apply(graph); + new CanonicalizerPhase().apply(graph, context); + new PartialEscapePhase(iterativeEscapeAnalysis, false, new CanonicalizerPhase(), null).apply(graph, context); + returnNodes = graph.getNodes(ReturnNode.TYPE).snapshot(); + } catch (Throwable e) { + throw Debug.handle(e); + } + } +}