1 /* 2 * Copyright (c) 2015, 2019, 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; 26 27 import org.junit.Test; 28 29 public class ConditionalEliminationPiTest extends ConditionalEliminationTestBase { 30 31 static int SideEffect; 32 33 static double oracleValue1 = -0.0; 34 static double oracleValue2; 35 36 public static double testSnippet1(int a) { 37 double phi; 38 if (a > 0) { 39 double oracle = oracleValue1; 40 if (oracle == 0.0) { 41 SideEffect = 1; 42 } else { 43 return 123; 44 } 45 phi = oracle; 46 } else { 47 double oracle = oracleValue2; 48 if (oracle == 0.0) { 49 SideEffect = 1; 50 phi = oracle; 51 } else { 52 return 0; 53 } 54 } 55 if (Double.doubleToRawLongBits(phi) == Double.doubleToRawLongBits(-0.0)) { 56 return 12; 57 } 58 return 2; 59 } 60 61 @Test 62 public void test1() { 63 test("testSnippet1", 1); 64 } 65 } 66