| /* |
| * Copyright (c) 2015, 2016, 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 |
| * @library /test/lib / |
| * @library ../common/patches |
| * @modules java.base/jdk.internal.misc |
| * @modules java.base/jdk.internal.org.objectweb.asm |
| * java.base/jdk.internal.org.objectweb.asm.tree |
| * jdk.vm.ci/jdk.vm.ci.hotspot |
| * jdk.vm.ci/jdk.vm.ci.code |
| * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI |
| * compiler.jvmci.compilerToVM.GetBytecodeTest |
| */ |
| |
| package compiler.jvmci.compilerToVM; |
| |
| import compiler.jvmci.common.CTVMUtilities; |
| import compiler.jvmci.common.testcases.TestCase; |
| import jdk.internal.org.objectweb.asm.Opcodes; |
| import jdk.test.lib.Asserts; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| |
| import java.lang.reflect.Executable; |
| import java.lang.reflect.Modifier; |
| |
| public class GetBytecodeTest { |
| |
| public static void main(String[] args) { |
| TestCase.getAllExecutables() |
| .forEach(GetBytecodeTest::runSanityTest); |
| } |
| |
| private static void runSanityTest(Executable aMethod) { |
| HotSpotResolvedJavaMethod method = CTVMUtilities |
| .getResolvedMethod(aMethod); |
| byte[] bytecode = CompilerToVMHelper.getBytecode(method); |
| |
| int mods = aMethod.getModifiers(); |
| boolean shouldHasZeroLength = Modifier.isAbstract(mods) |
| || Modifier.isNative(mods); |
| boolean correctLength = (bytecode.length == 0 && shouldHasZeroLength) |
| || (bytecode.length > 0 && !shouldHasZeroLength); |
| |
| Asserts.assertTrue(correctLength, "Bytecode of '" + aMethod + "' has " |
| + bytecode.length + " length"); |
| |
| if (!shouldHasZeroLength) { |
| Asserts.assertTrue(containsReturn(bytecode), "Bytecode of '" |
| + aMethod + "' doesn't have any return statement"); |
| } |
| } |
| |
| private static boolean containsReturn(byte[] bytecode) { |
| for (byte b : bytecode) { |
| // cast unsigned byte to int |
| int value = (int) b & 0x000000FF; |
| switch (value) { |
| case Opcodes.RET: |
| case Opcodes.ARETURN: |
| case Opcodes.IRETURN: |
| case Opcodes.LRETURN: |
| case Opcodes.FRETURN: |
| case Opcodes.DRETURN: |
| case Opcodes.RETURN: |
| return true; |
| } |
| } |
| return false; |
| } |
| } |