Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.tests/src/com/oracle/graal/compiler/tests/EscapeAnalysisTest.java @ 5501:d89b20486d87
Renaming CiConstant => RiConstant.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 07 Jun 2012 17:07:05 +0200 |
parents | a26b6248d398 |
children | 13aee5aba8cc |
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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 junit.framework.Assert; import org.junit.Test; import com.oracle.graal.compiler.*; import com.oracle.graal.compiler.phases.*; import com.oracle.graal.debug.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; import com.oracle.max.cri.ci.*; /** * In these test cases the probability of all invokes is set to a high value, such that an InliningPhase should inline them all. * After that, the EscapeAnalysisPhase is expected to remove all allocations and return the correct values. */ public class EscapeAnalysisTest extends GraphTest { @Test public void test1() { test("test1Snippet", RiConstant.forInt(101)); } @SuppressWarnings("all") public static int test1Snippet(int a) { Integer x = new Integer(101); return x.intValue(); } @Test public void test2() { test("test2Snippet", RiConstant.forInt(0)); } @SuppressWarnings("all") public static int test2Snippet(int a) { Integer[] x = new Integer[0]; return x.length; } @Test public void test3() { test("test3Snippet", RiConstant.forObject(null)); } @SuppressWarnings("all") public static Object test3Snippet(int a) { Integer[] x = new Integer[1]; return x[0]; } @Test public void testMonitor() { test("testMonitorSnippet", RiConstant.forInt(0)); } private static native void notInlineable(); @SuppressWarnings("all") public static int testMonitorSnippet(int a) { Integer x = new Integer(0); Integer[] y = new Integer[0]; Integer[] z = new Integer[1]; synchronized (x) { synchronized (y) { synchronized (z) { notInlineable(); } } } return x.intValue(); } public void testMonitor2() { test("testMonitor2Snippet", RiConstant.forInt(0)); } /** * This test case differs from the last one in that it requires inlining within a synchronized region. */ @SuppressWarnings("all") public static int testMonitor2Snippet(int a) { Integer x = new Integer(0); Integer[] y = new Integer[0]; Integer[] z = new Integer[1]; synchronized (x) { synchronized (y) { synchronized (z) { notInlineable(); return x.intValue(); } } } } private void test(String snippet, RiConstant expectedResult) { StructuredGraph graph = parse(snippet); for (Invoke n : graph.getInvokes()) { n.node().setProbability(100000); } new InliningPhase(null, runtime(), null, null, null, getDefaultPhasePlan(), OptimisticOptimizations.ALL).apply(graph); new DeadCodeEliminationPhase().apply(graph); Debug.dump(graph, "Graph"); new EscapeAnalysisPhase(null, runtime(), null, null, getDefaultPhasePlan(), OptimisticOptimizations.ALL).apply(graph); Debug.dump(graph, "Graph"); int retCount = 0; for (ReturnNode ret : graph.getNodes(ReturnNode.class)) { Assert.assertTrue(ret.result().isConstant()); Assert.assertEquals(ret.result().asConstant(), expectedResult); retCount++; } Assert.assertEquals(1, retCount); int newInstanceCount = 0; for (@SuppressWarnings("unused") NewInstanceNode n : graph.getNodes(NewInstanceNode.class)) { newInstanceCount++; } for (@SuppressWarnings("unused") NewObjectArrayNode n : graph.getNodes(NewObjectArrayNode.class)) { newInstanceCount++; } Assert.assertEquals(0, newInstanceCount); } }