russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
76 lines
2.3 KiB
Java
76 lines
2.3 KiB
Java
/*
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* Copyright (c) 2025, 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 8320909
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* @summary Similar to MissedOptWithShiftConvAnd, but with CastII on the way.
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* @library /test/lib
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*
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* @run main/othervm
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* -XX:CompileOnly=MissedOptWithShiftConvCastAnd::test
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* -XX:-TieredCompilation -Xbatch
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* -XX:+IgnoreUnrecognizedVMOptions -XX:VerifyIterativeGVN=10
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* MissedOptWithShiftConvCastAnd
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*/
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/*
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* @test
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* @bug 8320909
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* @library /test/lib
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*
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* @run main/othervm MissedOptWithShiftConvCastAnd
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*/
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import jdk.test.lib.Utils;
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public class MissedOptWithShiftConvCastAnd {
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static long instanceCount;
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public static void main(String[] args) throws Exception {
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Thread thread = new Thread() {
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public void run() {
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test(0);
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}
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};
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// Give thread some time to trigger compilation
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thread.setDaemon(true);
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thread.start();
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Thread.sleep(Utils.adjustTimeout(500));
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}
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static void test(int x) {
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for (int i = 3; ; ++i) {
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for (int j = 5; j > 1; --j) {
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instanceCount >>= x <<= 16;
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}
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x >>>= 16;
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for (int j = 1; j < 5; j++) {
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try {
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x = 1;
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} catch (ArithmeticException a_e) {
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}
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}
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}
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}
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}
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