Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/compiler/c1/MultiplyByMaxInt.java
test/compiler/c1/MultiplyByMaxInt.java
- changeset 9843
- a6f289d66efe
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| 9842:4df47a343601 | 9843:a6f289d66efe |
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| 1 /* | |
| 2 * Copyright (c) 2017, 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 | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 8181872 | |
| 27 * | |
| 28 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions | |
| 29 * -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1 | |
| 30 * -XX:-BackgroundCompilation -XX:CompileCommand=dontinline,compiler.c1.MultiplyByMaxInt::test | |
| 31 * compiler.c1.MultiplyByMaxInt | |
| 32 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-BackgroundCompilation | |
| 33 * -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=3 | |
| 34 * -XX:CompileCommand=dontinline,compiler.c1.MultiplyByMaxInt::test | |
| 35 * compiler.c1.MultiplyByMaxInt | |
| 36 */ | |
| 37 package compiler.c1; | |
| 38 | |
| 39 public class MultiplyByMaxInt { | |
| 40 static int test(int x) { | |
| 41 int loops = (x >>> 4) & 7; | |
| 42 while (loops-- > 0) { | |
| 43 x = (x * 2147483647) % 16807; | |
| 44 } | |
| 45 return x; | |
| 46 } | |
| 47 | |
| 48 public static void main(String[] args) { | |
| 49 for (int i = 0; i < 20000; i++) { | |
| 50 test(i); | |
| 51 } | |
| 52 } | |
| 53 } |
