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view graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/FloatingReadTest.java @ 16620:a4b7356f4a2b
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author | Chris Seaton <chris.seaton@oracle.com> |
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date | Wed, 30 Jul 2014 11:34:10 +0200 |
parents | c215dec9d3cf |
children | 1668de777c42 |
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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 org.junit.*; import com.oracle.graal.api.code.*; import com.oracle.graal.debug.*; import com.oracle.graal.debug.Debug.Scope; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.phases.common.*; import com.oracle.graal.phases.tiers.*; public class FloatingReadTest extends GraphScheduleTest { public static class Container { public int a; } public static void changeField(Container c) { c.a = 0xcafebabe; } public static synchronized int test1Snippet() { Container c = new Container(); return c.a; } @Test public void test1() { test("test1Snippet"); } private void test(final String snippet) { try (Scope s = Debug.scope("FloatingReadTest", new DebugDumpScope(snippet))) { StructuredGraph graph = parse(snippet); PhaseContext context = new PhaseContext(getProviders(), new Assumptions(false)); new LoweringPhase(new CanonicalizerPhase(true), LoweringTool.StandardLoweringStage.HIGH_TIER).apply(graph, context); new FloatingReadPhase().apply(graph); ReturnNode returnNode = null; MonitorExit monitorexit = null; for (Node n : graph.getNodes()) { if (n instanceof ReturnNode) { assert returnNode == null; returnNode = (ReturnNode) n; } else if (n instanceof MonitorExit) { monitorexit = (MonitorExit) n; } } Debug.dump(graph, "After lowering"); Assert.assertNotNull(returnNode); Assert.assertNotNull(monitorexit); Assert.assertTrue(returnNode.result() instanceof FloatingReadNode); FloatingReadNode read = (FloatingReadNode) returnNode.result(); assertOrderedAfterSchedule(graph, read, (Node) monitorexit); } catch (Throwable e) { throw Debug.handle(e); } } }