001/*
002 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.compiler.test.ea;
024
025import org.junit.*;
026
027import com.oracle.graal.nodes.*;
028
029public class EAMergingTest extends EATestBase {
030
031    @Test
032    public void testSimpleMerge() {
033        testEscapeAnalysis("simpleMergeSnippet", null, false);
034        assertDeepEquals(1, returnNodes.size());
035        assertTrue(returnNodes.get(0).result() instanceof ValuePhiNode);
036        PhiNode phi = (PhiNode) returnNodes.get(0).result();
037        assertTrue(phi.valueAt(0) instanceof ParameterNode);
038        assertTrue(phi.valueAt(1) instanceof ParameterNode);
039    }
040
041    public static int simpleMergeSnippet(boolean b, int u, int v) {
042        TestClassInt obj;
043        if (b) {
044            obj = new TestClassInt(u, 0);
045            notInlineable();
046        } else {
047            obj = new TestClassInt(v, 0);
048            notInlineable();
049        }
050        return obj.x;
051    }
052}