1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/5091921/Test6905845.java Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,76 @@
1.4 +/*
1.5 + * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +/**
1.29 + * @test
1.30 + * @bug 6905845
1.31 + * @summary Server VM improperly optimizing away loop.
1.32 + *
1.33 + * @run main/timeout=480 Test6905845
1.34 + */
1.35 +
1.36 +public class Test6905845 {
1.37 +
1.38 + public static void main(String[] args){
1.39 + for (int asdf = 0; asdf < 5; asdf++){
1.40 + //test block
1.41 + {
1.42 + StringBuilder strBuf1 = new StringBuilder(65);
1.43 + long start = System.currentTimeMillis();
1.44 + int count = 0;
1.45 +
1.46 + for (int i = Integer.MIN_VALUE; i < (Integer.MAX_VALUE - 80); i += 79){
1.47 + strBuf1.append(i);
1.48 + count++;
1.49 + strBuf1.delete(0, 65);
1.50 + }
1.51 +
1.52 + System.out.println(count);
1.53 + if (count != 54366674) {
1.54 + System.out.println("wrong count: " + count +", should be 54366674");
1.55 + System.exit(97);
1.56 + }
1.57 + }
1.58 + //test block
1.59 + {
1.60 + StringBuilder strBuf1 = new StringBuilder(65);
1.61 + long start = System.currentTimeMillis();
1.62 + int count = 0;
1.63 +
1.64 + for (int i = Integer.MIN_VALUE; i < (Integer.MAX_VALUE - 80); i += 79){
1.65 + strBuf1.append(i);
1.66 + count++;
1.67 + strBuf1.delete(0, 65);
1.68 + }
1.69 +
1.70 + System.out.println(count);
1.71 + if (count != 54366674) {
1.72 + System.out.println("wrong count: " + count +", should be 54366674");
1.73 + System.exit(97);
1.74 + }
1.75 + }
1.76 + }
1.77 + }
1.78 +}
1.79 +
