106 lines
3.7 KiB
Java
106 lines
3.7 KiB
Java
/*
|
|
* Copyright (c) 2013, 2022, 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 DeoptimizeMultipleOSRTest
|
|
* @bug 8061817
|
|
* @summary testing of WB::deoptimizeMethod()
|
|
* @library /test/lib /
|
|
* @modules java.base/jdk.internal.misc
|
|
* java.management
|
|
*
|
|
* @requires vm.opt.DeoptimizeALot != true
|
|
*
|
|
* @build jdk.test.whitebox.WhiteBox
|
|
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
|
|
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
|
|
* -XX:CompileCommand=compileonly,compiler.whitebox.DeoptimizeMultipleOSRTest::triggerOSR
|
|
* compiler.whitebox.DeoptimizeMultipleOSRTest
|
|
*/
|
|
|
|
package compiler.whitebox;
|
|
|
|
import jdk.test.whitebox.WhiteBox;
|
|
|
|
import java.lang.reflect.Method;
|
|
|
|
public class DeoptimizeMultipleOSRTest {
|
|
private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
|
|
private static final long BACKEDGE_THRESHOLD = 150000;
|
|
private Method method;
|
|
private int counter = 0;
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
DeoptimizeMultipleOSRTest test = new DeoptimizeMultipleOSRTest();
|
|
test.test();
|
|
}
|
|
|
|
/**
|
|
* Triggers two different OSR compilations for the same method and
|
|
* checks if WhiteBox.deoptimizeMethod() deoptimizes both.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public void test() throws Exception {
|
|
method = DeoptimizeMultipleOSRTest.class.getDeclaredMethod("triggerOSR", boolean.class, long.class);
|
|
// Trigger two OSR compiled versions
|
|
triggerOSR(true, BACKEDGE_THRESHOLD);
|
|
triggerOSR(false, BACKEDGE_THRESHOLD);
|
|
// Wait for compilation
|
|
CompilerWhiteBoxTest.waitBackgroundCompilation(method);
|
|
// Deoptimize
|
|
WHITE_BOX.deoptimizeMethod(method, true);
|
|
if (WHITE_BOX.isMethodCompiled(method, true)) {
|
|
throw new AssertionError("Not all OSR compiled versions were deoptimized");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Triggers OSR compilations by executing loops.
|
|
*
|
|
* @param first Determines which loop to execute
|
|
* @param limit The number of loop iterations
|
|
*/
|
|
public void triggerOSR(boolean first, long limit) {
|
|
if (limit != 1) {
|
|
// Warmup method to avoid uncommon traps
|
|
for (int i = 0; i < limit; ++i) {
|
|
triggerOSR(first, 1);
|
|
}
|
|
CompilerWhiteBoxTest.waitBackgroundCompilation(method);
|
|
}
|
|
if (first) {
|
|
// Trigger OSR compilation 1
|
|
for (int i = 0; i < limit; ++i) {
|
|
counter++;
|
|
}
|
|
} else {
|
|
// Trigger OSR compilation 2
|
|
for (int i = 0; i < limit; ++i) {
|
|
counter++;
|
|
}
|
|
}
|
|
}
|
|
}
|