1 /* 2 * Copyright (c) 2015, 2015, 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 package org.graalvm.compiler.core.test; 24 25 import org.junit.Test; 26 27 /** 28 * Collection of tests for 29 * {@link org.graalvm.compiler.phases.common.DominatorConditionalEliminationPhase} including those 30 * that triggered bugs in this phase. 31 */ 32 public class ConditionalEliminationTest3 extends ConditionalEliminationTestBase { 33 34 private static final String REFERENCE_SNIPPET = "referenceSnippet"; 35 36 @SuppressWarnings("all") 37 public static int referenceSnippet(int a, int b) { 38 int sum = 0; 39 outer: for (int i = 0;; ++i) { 40 if (b > 100) { 41 inner: for (int j = 0;; ++j) { 42 ++sum; 43 if (sum == 100) { 44 break inner; 45 } 46 if (sum == 1000 && b < 1000) { 47 break outer; 48 } 49 } 50 } 51 } 52 return sum; 53 } 54 55 @Test 56 public void test1() { 57 testConditionalElimination("test1Snippet", REFERENCE_SNIPPET); 58 } 59 60 @SuppressWarnings("all") 61 public static int test1Snippet(int a, int b) { 62 int sum = 0; 63 outer: for (int i = 0;; ++i) { 64 if (b > 100) { 65 inner: for (int j = 0;; ++j) { 66 ++sum; 67 if (sum == 100) { 68 break inner; 69 } 70 if (sum == 1000 && b < 1000) { 71 break outer; 72 } 73 } 74 } 75 } 76 if (b >= 1000) { 77 return 5; 78 } 79 return sum; 80 } 81 82 @Test 83 public void test2() { 84 testConditionalElimination("test2Snippet", REFERENCE_SNIPPET); 85 } 86 87 @SuppressWarnings("all") 88 public static int test2Snippet(int a, int b) { 89 int sum = 0; 90 outer: for (int i = 0;; ++i) { 91 if (b > 100) { 92 inner: for (int j = 0;; ++j) { 93 ++sum; 94 if (sum == 100) { 95 break inner; 96 } 97 if (sum == 1000 && b < 1000) { 98 break outer; 99 } 100 } 101 if (sum != 100) { 102 return 42; 103 } 104 } 105 } 106 return sum; 107 } 108 }