1 /* 2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.core.test.ea; 26 27 import org.junit.Test; 28 29 import org.graalvm.compiler.nodes.ParameterNode; 30 import org.graalvm.compiler.nodes.PhiNode; 31 import org.graalvm.compiler.nodes.ValuePhiNode; 32 33 public class EAMergingTest extends EATestBase { 34 35 @Test 36 public void testSimpleMerge() { 37 testEscapeAnalysis("simpleMergeSnippet", null, false); 38 assertDeepEquals(1, returnNodes.size()); 39 assertTrue(returnNodes.get(0).result() instanceof ValuePhiNode); 40 PhiNode phi = (PhiNode) returnNodes.get(0).result(); 41 assertTrue(phi.valueAt(0) instanceof ParameterNode); 42 assertTrue(phi.valueAt(1) instanceof ParameterNode); 43 } 44 45 public static int simpleMergeSnippet(boolean b, int u, int v) { 46 TestClassInt obj; 47 if (b) { 48 obj = new TestClassInt(u, 0); 49 notInlineable(); 50 } else { 51 obj = new TestClassInt(v, 0); 52 notInlineable(); 53 } 54 return obj.x; 55 } 56 }