Mercurial > hg > graal-compiler
view graal/com.oracle.graal.tests/src/com/oracle/graal/compiler/tests/MonitorTest.java @ 5138:4d8ebb0fc484
Merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 21 Mar 2012 13:57:30 +0100 |
parents | dad1ac9dba7d |
children | a26b6248d398 |
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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.tests; import static com.oracle.graal.graph.iterators.NodePredicates.*; import java.util.*; import junit.framework.*; import org.junit.Assert; import org.junit.Test; import com.oracle.graal.compiler.*; import com.oracle.graal.compiler.phases.*; import com.oracle.graal.graph.*; import com.oracle.graal.graph.iterators.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; /** * In the following tests, the usages of local variable "a" are replaced with the integer constant 0. * Then canonicalization is applied and it is verified that the resulting graph is equal to the * graph of the method that just has a "return 1" statement in it. */ public class MonitorTest extends GraphTest { private static final String REFERENCE_SNIPPET = "referenceSnippet"; @SuppressWarnings("all") public static synchronized int referenceSnippet(int a) { return 1; } public static int const1() { return 1; } @Test(expected = AssertionFailedError.class) public void test1() { test("test1Snippet"); } @SuppressWarnings("all") public static synchronized int test1Snippet(int a) { return const1(); } @Test public void test2() { StructuredGraph graph = parseAndProcess("test2Snippet"); NodeIterable<MonitorExitNode> monitors = graph.getNodes(MonitorExitNode.class); Assert.assertEquals(1, monitors.count()); Assert.assertEquals(monitors.first().stateAfter().bci, 3); } @SuppressWarnings("all") public static int test2Snippet(int a) { return const2(); } public static synchronized int const2() { return 1; } private StructuredGraph parseAndProcess(String snippet) { StructuredGraph graph = parse(snippet); LocalNode local = graph.getNodes(LocalNode.class).first(); ConstantNode constant = ConstantNode.forInt(0, graph); for (Node n : local.usages().filter(isNotA(FrameState.class)).snapshot()) { n.replaceFirstInput(local, constant); } Collection<Invoke> hints = new ArrayList<>(); for (Invoke invoke : graph.getInvokes()) { hints.add(invoke); } new InliningPhase(null, runtime(), hints, null, getDefaultPhasePlan(), OptimisticOptimizations.ALL).apply(graph); new CanonicalizerPhase(null, runtime(), null).apply(graph); new DeadCodeEliminationPhase().apply(graph); return graph; } private void test(String snippet) { StructuredGraph graph = parseAndProcess(snippet); StructuredGraph referenceGraph = parse(REFERENCE_SNIPPET); assertEquals(referenceGraph, graph); } }