TestMultiplyToLenReturnProfile.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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23 */
24
25/**
26 * @test
27 * @bug 8057758
28 * @summary MultiplyToLen sets its return type to have a bottom offset which confuses code generation
29 *
30 * @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
31 *      -XX:TypeProfileLevel=222
32 *      compiler.intrinsics.bigInteger.TestMultiplyToLenReturnProfile
33 */
34
35package compiler.intrinsics.bigInteger;
36
37import java.math.BigInteger;
38
39public class TestMultiplyToLenReturnProfile {
40
41    static BigInteger m(BigInteger i1, BigInteger i2) {
42        BigInteger res = BigInteger.valueOf(0);
43        for (int i = 0; i < 100; i++) {
44            res.add(i1.multiply(i2));
45        }
46        return res;
47    }
48
49    static public void main(String[] args) {
50        BigInteger v = BigInteger.valueOf(Integer.MAX_VALUE).pow(2);
51        for (int i = 0; i < 20000; i++) {
52            m(v, v.add(BigInteger.valueOf(1)));
53        }
54    }
55}
56