1 /* 2 * Copyright (c) 2015, 2018, 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.Ignore; 28 import org.junit.Test; 29 30 /** 31 * Collection of tests for {@link org.graalvm.compiler.phases.common.ConditionalEliminationPhase} 32 * including those that triggered bugs in this phase. 33 */ 34 @Ignore 35 public class ConditionalEliminationTest7 extends ConditionalEliminationTestBase { 36 37 @SuppressWarnings("all") test1Snippet(int a, Object b)38 public static int test1Snippet(int a, Object b) { 39 int sum = 0; 40 for (int j = 0;; ++j) { 41 ++sum; 42 if (b instanceof String) { 43 if (sum == 100) { 44 break; 45 } 46 } 47 } 48 String s = (String) b; 49 return s.length() + sum; 50 } 51 52 @Test test1()53 public void test1() { 54 // One loop exit is skipped. 55 testProxies("test1Snippet", 1); 56 } 57 58 @SuppressWarnings("all") test2Snippet(int a, Object b)59 public static int test2Snippet(int a, Object b) { 60 int sum = 0; 61 for (int j = 0;; ++j) { 62 ++sum; 63 if (b instanceof String) { 64 break; 65 } 66 } 67 String s = (String) b; 68 return s.length() + sum; 69 } 70 71 @Test test2()72 public void test2() { 73 // The loop exit is the anchor => no proxy necessary. 74 testProxies("test2Snippet", 0); 75 } 76 77 @SuppressWarnings("all") test3Snippet(int a, Object b)78 public static int test3Snippet(int a, Object b) { 79 int sum = a; 80 outer: while (true) { 81 sum++; 82 while (sum++ != 20) { 83 while (sum++ != 30) { 84 while (sum++ != 40) { 85 while (sum++ != 50) { 86 if (b instanceof String) { 87 break outer; 88 } 89 } 90 } 91 } 92 } 93 } 94 String s = (String) b; 95 return s.length() + sum; 96 } 97 98 @Test test3()99 public void test3() { 100 // The break skips over 4 other loops. 101 testProxies("test3Snippet", 4); 102 } 103 } 104