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99 lines
3.7 KiB
Java
99 lines
3.7 KiB
Java
/*
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* Copyright Amazon.com Inc. 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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/*
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* @test
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* @bug 8316694
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* @library /test/lib /
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* @modules java.base/jdk.internal.misc java.management
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* @requires vm.opt.DeoptimizeALot != true
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* @requires vm.flavor == "server" & (vm.opt.TieredStopAtLevel == null | vm.opt.TieredStopAtLevel == 4)
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbatch -XX:+SegmentedCodeCache
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* -XX:+UnlockExperimentalVMOptions -XX:+NMethodRelocation compiler.whitebox.DeoptimizeRelocatedNMethod
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*/
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package compiler.whitebox;
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import compiler.whitebox.CompilerWhiteBoxTest;
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import java.lang.reflect.Method;
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import jdk.test.whitebox.WhiteBox;
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import jdk.test.whitebox.code.BlobType;
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import jdk.test.whitebox.code.NMethod;
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public class DeoptimizeRelocatedNMethod {
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private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
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public static double FUNCTION_RESULT = 0;
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public static void main(String [] args) throws Exception {
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// Get method that will be relocated
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Method method = DeoptimizeRelocatedNMethod.class.getMethod("function");
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WHITE_BOX.testSetDontInlineMethod(method, true);
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// Verify not initially compiled
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CompilerWhiteBoxTest.checkNotCompiled(method, false);
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// Enqueue method for compilation. This will block since background compilation is disabled
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WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
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// Verify now compiled
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CompilerWhiteBoxTest.checkCompiled(method, false);
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// Get newly created nmethod
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NMethod origNmethod = NMethod.get(method, false);
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// Relocate nmethod and mark old for cleanup
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WHITE_BOX.relocateNMethodFromMethod(method, BlobType.MethodNonProfiled.id);
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// Trigger GC to clean up old nmethod
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WHITE_BOX.fullGC();
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// Verify function still compiled after old was cleaned up
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CompilerWhiteBoxTest.checkCompiled(method, false);
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// Get new nmethod and verify it's actually new
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NMethod newNmethod = NMethod.get(method, false);
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if (origNmethod.entry_point == newNmethod.entry_point) {
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throw new RuntimeException("Did not create new nmethod");
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}
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// Call to verify everything still works
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function();
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// Deoptimized method
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WHITE_BOX.deoptimizeMethod(method);
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CompilerWhiteBoxTest.checkNotCompiled(method, false);
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// Call to verify everything still works
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function();
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}
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public static void function() {
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FUNCTION_RESULT = Math.random();
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}
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}
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