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 ConditionalEliminationTest7 extends ConditionalEliminationTestBase { 33 34 @SuppressWarnings("all") 35 public static int test1Snippet(int a, Object b) { 36 int sum = 0; 37 for (int j = 0;; ++j) { 38 ++sum; 39 if (b instanceof String) { 40 if (sum == 100) { 41 break; 42 } 43 } 44 } 45 String s = (String) b; 46 return s.length() + sum; 47 } 48 49 @Test 50 public void test1() { 51 // One loop exit is skipped. 52 testProxies("test1Snippet", 1); 53 } 54 55 @SuppressWarnings("all") 56 public static int test2Snippet(int a, Object b) { 57 int sum = 0; 58 for (int j = 0;; ++j) { 59 ++sum; 60 if (b instanceof String) { 61 break; 62 } 63 } 64 String s = (String) b; 65 return s.length() + sum; 66 } 67 68 @Test 69 public void test2() { 70 // The loop exit is the anchor => no proxy necessary. 71 testProxies("test2Snippet", 0); 72 } 73 74 @SuppressWarnings("all") 75 public static int test3Snippet(int a, Object b) { 76 int sum = a; 77 outer: while (true) { 78 sum++; 79 while (sum++ != 20) { 80 while (sum++ != 30) { 81 while (sum++ != 40) { 82 while (sum++ != 50) { 83 if (b instanceof String) { 84 break outer; 85 } 86 } 87 } 88 } 89 } 90 } 91 String s = (String) b; 92 return s.length() + sum; 93 } 94 95 @Test 96 public void test3() { 97 // The break skips over 4 other loops. 98 testProxies("test3Snippet", 4); 99 } 100 }