54 lines
2.0 KiB
Java
54 lines
2.0 KiB
Java
/*
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* Copyright (c) 2017, 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 8181872
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*
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions
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* -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1
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* -XX:-BackgroundCompilation -XX:CompileCommand=dontinline,compiler.c1.MultiplyByMaxInt::test
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* compiler.c1.MultiplyByMaxInt
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-BackgroundCompilation
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* -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=3
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* -XX:CompileCommand=dontinline,compiler.c1.MultiplyByMaxInt::test
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* compiler.c1.MultiplyByMaxInt
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*/
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package compiler.c1;
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public class MultiplyByMaxInt {
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static int test(int x) {
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int loops = (x >>> 4) & 7;
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while (loops-- > 0) {
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x = (x * 2147483647) % 16807;
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}
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return x;
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}
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public static void main(String[] args) {
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for (int i = 0; i < 20000; i++) {
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test(i);
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}
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}
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}
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