| /* |
| * Copyright (c) 2017, 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 8136421 |
| * @requires vm.jvmci & (vm.opt.TieredStopAtLevel == null | vm.opt.TieredStopAtLevel == 4) |
| * @library / /test/lib |
| * ../common/patches |
| * @modules java.base/jdk.internal.misc |
| * java.base/jdk.internal.org.objectweb.asm |
| * java.base/jdk.internal.org.objectweb.asm.tree |
| * jdk.internal.vm.ci/jdk.vm.ci.hotspot |
| * jdk.internal.vm.ci/jdk.vm.ci.code |
| * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper |
| * sun.hotspot.WhiteBox |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -Xbatch |
| * compiler.jvmci.compilerToVM.IsMatureVsReprofileTest |
| */ |
| |
| package compiler.jvmci.compilerToVM; |
| |
| import compiler.jvmci.common.CTVMUtilities; |
| import compiler.jvmci.common.testcases.SimpleClass; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.test.lib.Asserts; |
| import sun.hotspot.WhiteBox; |
| import compiler.whitebox.CompilerWhiteBoxTest; |
| import java.lang.reflect.Executable; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| import jdk.test.lib.Platform; |
| |
| public class IsMatureVsReprofileTest { |
| private static final WhiteBox WB = WhiteBox.getWhiteBox(); |
| private static final boolean TIERED = WB.getBooleanVMFlag("TieredCompilation"); |
| private static final boolean IS_XCOMP = Platform.isComp(); |
| |
| public static void main(String[] args) throws Exception { |
| new IsMatureVsReprofileTest().test(); |
| } |
| |
| public void test() throws Exception { |
| SimpleClass sclass = new SimpleClass(); |
| Executable method = SimpleClass.class.getDeclaredMethod("testMethod"); |
| long metaspaceMethodData = WB.getMethodData(method); |
| Asserts.assertEQ(metaspaceMethodData, 0L, "MDO should be null for a " |
| + "never invoked method"); |
| boolean isMature = CompilerToVMHelper.isMature(metaspaceMethodData); |
| Asserts.assertFalse(isMature, "null MDO can't be mature"); |
| for (int i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) { |
| sclass.testMethod(); |
| } |
| Asserts.assertTrue(WB.isMethodCompiled(method), |
| "Method should be compiled"); |
| metaspaceMethodData = WB.getMethodData(method); |
| Asserts.assertNE(metaspaceMethodData, 0L, |
| "Multiple times invoked method should have MDO"); |
| isMature = CompilerToVMHelper.isMature(metaspaceMethodData); |
| /* a method is not mature for -Xcomp and -Tiered, |
| see NonTieredCompPolicy::is_mature */ |
| Asserts.assertEQ(!IS_XCOMP || TIERED, isMature, |
| "Unexpected isMature state for compiled method"); |
| HotSpotResolvedJavaMethod resolvedMethod |
| = CTVMUtilities.getResolvedMethod(method); |
| CompilerToVMHelper.reprofile(resolvedMethod); |
| Asserts.assertFalse(WB.isMethodCompiled(method), |
| "Unexpected method compilation state after reprofile"); |
| metaspaceMethodData = WB.getMethodData(method); |
| isMature = CompilerToVMHelper.isMature(metaspaceMethodData); |
| Asserts.assertNE(metaspaceMethodData, 0L, |
| "Got null MDO after reprofile"); |
| Asserts.assertEQ(TIERED && IS_XCOMP, isMature, |
| "Got unexpected isMature state after reprofiling"); |
| } |
| } |