--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/HotSpotNmethodTest.java 2016-12-09 00:49:08.628401134 -0800 @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2013, 2013, 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. + */ +package org.graalvm.compiler.hotspot.test; + +import org.junit.Assert; +import org.junit.Test; + +import org.graalvm.compiler.core.test.GraalCompilerTest; +import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; + +import jdk.vm.ci.code.InvalidInstalledCodeException; +import jdk.vm.ci.hotspot.HotSpotNmethod; +import jdk.vm.ci.meta.ResolvedJavaMethod; + +public class HotSpotNmethodTest extends GraalCompilerTest { + + private static final int ITERATION_COUNT = 100000; + + @Test + public void testInstallCodeInvalidation() { + final ResolvedJavaMethod testJavaMethod = getResolvedJavaMethod("foo"); + final HotSpotNmethod nmethod = (HotSpotNmethod) getCode(testJavaMethod, parseEager("otherFoo", AllowAssumptions.YES)); + Assert.assertTrue(nmethod.isValid()); + Object result; + try { + result = nmethod.executeVarargs(null, "b", "c"); + assertDeepEquals(43, result); + } catch (InvalidInstalledCodeException e) { + Assert.fail("Code was invalidated"); + } + Assert.assertTrue(nmethod.isValid()); + nmethod.invalidate(); + Assert.assertFalse(nmethod.isValid()); + try { + result = nmethod.executeVarargs(null, null, null); + Assert.fail("Code was not invalidated"); + } catch (InvalidInstalledCodeException e) { + } + Assert.assertFalse(nmethod.isValid()); + } + + @Test + public void testInstallCodeInvalidationWhileRunning() { + final ResolvedJavaMethod testJavaMethod = getResolvedJavaMethod("foo"); + final HotSpotNmethod nmethod = (HotSpotNmethod) getCode(testJavaMethod, parseEager("otherFoo", AllowAssumptions.YES)); + Object result; + try { + result = nmethod.executeVarargs(nmethod, null, null); + assertDeepEquals(43, result); + } catch (InvalidInstalledCodeException e) { + Assert.fail("Code was invalidated"); + } + Assert.assertFalse(nmethod.isValid()); + } + + @Test + public void testInstalledCodeCalledFromCompiledCode() { + final ResolvedJavaMethod testJavaMethod = getResolvedJavaMethod("foo"); + final HotSpotNmethod nmethod = (HotSpotNmethod) getCode(testJavaMethod, parseEager("otherFoo", AllowAssumptions.YES)); + Assert.assertTrue(nmethod.isValid()); + try { + for (int i = 0; i < ITERATION_COUNT; ++i) { + nmethod.executeVarargs(null, "b", "c"); + } + } catch (InvalidInstalledCodeException e) { + Assert.fail("Code was invalidated"); + } + } + + @SuppressWarnings("unused") + public static Object foo(HotSpotNmethod method, Object a2, Object a3) { + return 42; + } + + @SuppressWarnings("unused") + public static Object otherFoo(HotSpotNmethod method, Object a2, Object a3) { + if (method != null) { + method.invalidate(); + } + return 43; + } +}