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view graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/LockEliminationTest.java @ 11584:65cedae2647e
Merge
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Tue, 10 Sep 2013 19:18:24 +0200 |
parents | ae27f6ac3374 ae619d70bf4b |
children | 23ccaa863eda |
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/* * Copyright (c) 2011, 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 com.oracle.graal.compiler.test; import java.lang.reflect.*; import org.junit.*; import com.oracle.graal.api.code.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.common.*; import com.oracle.graal.phases.tiers.*; public class LockEliminationTest extends GraalCompilerTest { static class A { int value; public synchronized int getValue() { return value; } } static int field1; static int field2; public static void testSynchronizedSnippet(A x, A y) { synchronized (x) { field1 = x.value; } synchronized (x) { field2 = y.value; } } @Test public void testLock() { test("testSynchronizedSnippet", new A(), new A()); StructuredGraph graph = getGraph("testSynchronizedSnippet"); new CanonicalizerPhase(true).apply(graph, new PhaseContext(runtime(), null, replacements)); new LockEliminationPhase().apply(graph); assertEquals(1, graph.getNodes().filter(MonitorEnterNode.class).count()); assertEquals(1, graph.getNodes().filter(MonitorExitNode.class).count()); } public static void testSynchronizedMethodSnippet(A x) { int value1 = x.getValue(); int value2 = x.getValue(); field1 = value1; field2 = value2; } @Test public void testSynchronizedMethod() { test("testSynchronizedMethodSnippet", new A()); StructuredGraph graph = getGraph("testSynchronizedMethodSnippet"); new CanonicalizerPhase(true).apply(graph, new PhaseContext(runtime(), null, replacements)); new LockEliminationPhase().apply(graph); assertEquals(1, graph.getNodes().filter(MonitorEnterNode.class).count()); assertEquals(1, graph.getNodes().filter(MonitorExitNode.class).count()); } private StructuredGraph getGraph(String snippet) { Method method = getMethod(snippet); StructuredGraph graph = parse(method); PhasePlan phasePlan = getDefaultPhasePlan(); Assumptions assumptions = new Assumptions(true); HighTierContext context = new HighTierContext(runtime(), assumptions, replacements, null, phasePlan, OptimisticOptimizations.ALL); new CanonicalizerPhase(true).apply(graph, context); new InliningPhase(new CanonicalizerPhase(true)).apply(graph, context); new CanonicalizerPhase(true).apply(graph, context); new DeadCodeEliminationPhase().apply(graph); new LoweringPhase(new CanonicalizerPhase(true)).apply(graph, context); new ValueAnchorCleanupPhase().apply(graph); new LockEliminationPhase().apply(graph); return graph; } }