| /* |
| * Copyright (c) 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 org.junit.Test; |
| |
| import org.graalvm.compiler.core.test.GraalCompilerTest; |
| import org.graalvm.compiler.debug.Debug; |
| import org.graalvm.compiler.debug.Debug.Scope; |
| import org.graalvm.compiler.debug.DebugDumpScope; |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; |
| import org.graalvm.compiler.nodes.java.AbstractNewObjectNode; |
| import org.graalvm.compiler.nodes.java.NewInstanceNode; |
| import org.graalvm.compiler.nodes.spi.LoweringTool; |
| import org.graalvm.compiler.phases.common.CanonicalizerPhase; |
| import org.graalvm.compiler.phases.common.LoweringPhase; |
| import org.graalvm.compiler.phases.common.inlining.InliningPhase; |
| import org.graalvm.compiler.phases.tiers.HighTierContext; |
| import org.graalvm.compiler.phases.tiers.PhaseContext; |
| |
| /** |
| * Tests {@link AbstractNewObjectNode#simplify(org.graalvm.compiler.graph.spi.SimplifierTool)}. |
| * |
| */ |
| public class PoorMansEATest extends GraalCompilerTest { |
| public static class A { |
| public A obj; |
| } |
| |
| public static A test1Snippet() { |
| A a = new A(); |
| a.obj = a; |
| return null; |
| } |
| |
| @Test |
| public void test1() { |
| test("test1Snippet"); |
| } |
| |
| @SuppressWarnings("try") |
| private void test(final String snippet) { |
| try (Scope s = Debug.scope("PoorMansEATest", new DebugDumpScope(snippet))) { |
| StructuredGraph graph = parseEager(snippet, AllowAssumptions.NO); |
| HighTierContext highTierContext = getDefaultHighTierContext(); |
| new InliningPhase(new CanonicalizerPhase()).apply(graph, highTierContext); |
| PhaseContext context = new PhaseContext(getProviders()); |
| new LoweringPhase(new CanonicalizerPhase(), LoweringTool.StandardLoweringStage.HIGH_TIER).apply(graph, context); |
| |
| // remove framestates in order to trigger the simplification. |
| cleanup: for (FrameState fs : graph.getNodes(FrameState.TYPE).snapshot()) { |
| for (Node input : fs.inputs()) { |
| if (input instanceof NewInstanceNode) { |
| fs.replaceAtUsages(null); |
| fs.safeDelete(); |
| continue cleanup; |
| } |
| } |
| } |
| new CanonicalizerPhase().apply(graph, context); |
| } catch (Throwable e) { |
| throw Debug.handle(e); |
| } |
| } |
| } |