| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8078093 8077247 |
| * @summary Exponential performance regression Java 8 compiler compared to Java 7 compiler |
| * @compile T8077247.java |
| */ |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| class T8077247 { |
| public static void test() { |
| int x = add(add(add(add(add(add(add(add(add(add(1, 2), 3), 4), 5), 6), 7), 8), 9), 10), 11); |
| } |
| |
| public static int add(int x, int y) { |
| long rslt = (long)x + (long)y; |
| if (Integer.MIN_VALUE <= rslt && rslt <= Integer.MAX_VALUE) { |
| return (int)rslt; |
| } |
| |
| String msg = String.format("Integer overflow: %d + %d.", x, y); |
| throw new IllegalArgumentException(msg); |
| } |
| |
| public static double add(double x, double y) { |
| double rslt = x + y; |
| if (Double.isInfinite(rslt)) { |
| String msg = String.format("Real overflow: %s + %s.", x, y); |
| throw new IllegalArgumentException(msg); |
| } |
| return (rslt == -0.0) ? 0.0 : rslt; |
| } |
| |
| public static <T> List<T> add(List<T> x, List<T> y) { |
| List<T> rslt = new ArrayList<>(x.size() + y.size()); |
| rslt.addAll(x); |
| rslt.addAll(y); |
| return rslt; |
| } |
| |
| public static String add(String x, String y) { |
| return x + y; |
| } |
| |
| public static <K, V> Map<K, V> add(Map<K, V> x, Map<K, V> y) { |
| Map<K, V> rslt = new HashMap<>(x); |
| rslt.putAll(y); |
| return rslt; |
| } |
| } |