/* * Copyright (c) 2011, 2013, 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. * * 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 6905845 * @summary Server VM improperly optimizing away loop. * * @run main/timeout=480 compiler.c2.Test6905845
*/
package compiler.c2;
publicclass Test6905845 {
publicstaticvoid main(String[] args) { for (int asdf = 0; asdf < 5; asdf++) { //test block
{
StringBuilder strBuf1 = new StringBuilder(65); long start = System.currentTimeMillis(); int count = 0;
for (int i = Integer.MIN_VALUE; i < (Integer.MAX_VALUE - 80); i += 79) {
strBuf1.append(i);
count++;
strBuf1.delete(0, 65);
}
System.out.println(count); if (count != 54366674) {
System.out.println("wrong count: " + count + ", should be 54366674");
System.exit(97);
}
} //test block
{
StringBuilder strBuf1 = new StringBuilder(65); long start = System.currentTimeMillis(); int count = 0;
for (int i = Integer.MIN_VALUE; i < (Integer.MAX_VALUE - 80); i += 79) {
strBuf1.append(i);
count++;
strBuf1.delete(0, 65);
}
System.out.println(count); if (count != 54366674) {
System.out.println("wrong count: " + count + ", should be 54366674");
System.exit(97);
}
}
}
}
}
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