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/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8257513
* @requires vm.debug == true
* @summary Stress testing code buffers resulted in an assertion failure due to not taking expand calls into account
* which can fail more often with -XX:+StressCodeBuffers. Perform some more sanity flag testing.
* @run main/othervm -Xcomp -XX:-TieredCompilation -XX:+StressCodeBuffers compiler.codecache.TestStressCodeBuffers
* @run main/othervm -Xcomp -XX:+StressCodeBuffers compiler.codecache.TestStressCodeBuffers
*/
package compiler.codecache;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
public class TestStressCodeBuffers {
static MethodHandle permh;
public static void main(String[] args) throws Exception {
test();
}
public static void test() throws Exception {
MethodHandles.Lookup lookup = MethodHandles.publicLookup();
MethodHandle mh = lookup.findStatic(TestStressCodeBuffers.class, "bar",
MethodType.methodType(void.class, int.class, long.class));
permh = MethodHandles.permuteArguments(mh, mh.type(), 0, 1); // Triggers assertion failure
}
public static void bar(int x, long y) {}
}
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