83 lines
2.8 KiB
Java
83 lines
2.8 KiB
Java
/*
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* Copyright (c) 2011, 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 6559156
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* @summary Server compiler generates bad code for "<= Integer.MAX_VALUE" expression
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*
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* @run main compiler.c2.Test6559156
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*/
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package compiler.c2;
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public class Test6559156 {
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static final int N_TESTS = 1000000;
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public static void main(String[] args) throws Exception {
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/*
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* If MAX_VALUE is changed to MAX_VALUE - 1 below, the test passes
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* because (apparently) bad code is only generated when comparing
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* <= MAX_VALUE in the doTest method.
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*/
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Test6559156 test = new Test6559156();
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for (int i = 0; i < N_TESTS; i += 1) {
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test.doTest1(10, Integer.MAX_VALUE, i);
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test.doTest2(10, Integer.MAX_VALUE, i);
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}
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System.out.println("No failure");
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}
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void doTest1(int expected, int max, int i) {
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int counted;
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for (counted = 0;
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(counted <= max) && (counted < expected);
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counted += 1) {
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}
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if (counted != expected) {
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throw new RuntimeException("Failed test1 iteration=" + i +
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" max=" + max +
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" counted=" + counted +
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" expected=" + expected);
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}
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}
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void doTest2(int expected, int max, int i) {
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int counted;
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for (counted = 0;
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// change test sequence.
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(counted < expected) && (counted <= max);
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counted += 1) {
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}
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if (counted != expected) {
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throw new RuntimeException("Failed test1 iteration=" + i +
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" max=" + max +
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" counted=" + counted +
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" expected=" + expected);
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}
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}
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}
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