79 lines
2.6 KiB
Java
79 lines
2.6 KiB
Java
/*
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* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 6905845
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* @summary Server VM improperly optimizing away loop.
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*
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* @requires vm.opt.TieredStopAtLevel != 3
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* @run main/timeout=480 compiler.c2.Test6905845
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*/
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package compiler.c2;
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public class Test6905845 {
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public static void main(String[] args) {
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for (int asdf = 0; asdf < 5; asdf++) {
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//test block
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{
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StringBuilder strBuf1 = new StringBuilder(65);
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long start = System.currentTimeMillis();
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int count = 0;
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for (int i = Integer.MIN_VALUE; i < (Integer.MAX_VALUE - 80); i += 79) {
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strBuf1.append(i);
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count++;
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strBuf1.delete(0, 65);
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}
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System.out.println(count);
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if (count != 54366674) {
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System.out.println("wrong count: " + count + ", should be 54366674");
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System.exit(97);
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}
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}
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//test block
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{
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StringBuilder strBuf1 = new StringBuilder(65);
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long start = System.currentTimeMillis();
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int count = 0;
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for (int i = Integer.MIN_VALUE; i < (Integer.MAX_VALUE - 80); i += 79) {
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strBuf1.append(i);
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count++;
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strBuf1.delete(0, 65);
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}
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System.out.println(count);
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if (count != 54366674) {
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System.out.println("wrong count: " + count + ", should be 54366674");
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System.exit(97);
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}
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}
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}
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}
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}
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