101 lines
3.6 KiB
Java
101 lines
3.6 KiB
Java
/*
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* Copyright (c) 2015, 2019, Oracle and/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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* @test
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* @bug 8136421
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* @requires vm.jvmci
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* @library /test/lib /
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* @library ../common/patches
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* @modules java.base/jdk.internal.misc
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* @modules java.base/jdk.internal.org.objectweb.asm
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* java.base/jdk.internal.org.objectweb.asm.tree
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* jdk.internal.vm.ci/jdk.vm.ci.hotspot
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* jdk.internal.vm.ci/jdk.vm.ci.code
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* jdk.internal.vm.ci/jdk.vm.ci.meta
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* jdk.internal.vm.ci/jdk.vm.ci.runtime
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*
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* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
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* -XX:-UseJVMCICompiler
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* compiler.jvmci.compilerToVM.GetBytecodeTest
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*/
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package compiler.jvmci.compilerToVM;
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import compiler.jvmci.common.CTVMUtilities;
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import compiler.jvmci.common.testcases.TestCase;
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import jdk.internal.org.objectweb.asm.Opcodes;
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import jdk.test.lib.Asserts;
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import jdk.vm.ci.hotspot.CompilerToVMHelper;
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import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
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import java.lang.reflect.Executable;
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import java.lang.reflect.Modifier;
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public class GetBytecodeTest {
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public static void main(String[] args) {
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TestCase.getAllExecutables()
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.forEach(GetBytecodeTest::runSanityTest);
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}
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private static void runSanityTest(Executable aMethod) {
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HotSpotResolvedJavaMethod method = CTVMUtilities
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.getResolvedMethod(aMethod);
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byte[] bytecode = CompilerToVMHelper.getBytecode(method);
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int mods = aMethod.getModifiers();
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boolean shouldHasZeroLength = Modifier.isAbstract(mods)
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|| Modifier.isNative(mods);
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boolean correctLength = (bytecode.length == 0 && shouldHasZeroLength)
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|| (bytecode.length > 0 && !shouldHasZeroLength);
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Asserts.assertTrue(correctLength, "Bytecode of '" + aMethod + "' has "
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+ bytecode.length + " length");
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if (!shouldHasZeroLength) {
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Asserts.assertTrue(containsReturn(bytecode), "Bytecode of '"
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+ aMethod + "' doesn't have any return statement");
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}
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}
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private static boolean containsReturn(byte[] bytecode) {
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for (byte b : bytecode) {
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// cast unsigned byte to int
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int value = (int) b & 0x000000FF;
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switch (value) {
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case Opcodes.RET:
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case Opcodes.ARETURN:
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case Opcodes.IRETURN:
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case Opcodes.LRETURN:
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case Opcodes.FRETURN:
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case Opcodes.DRETURN:
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case Opcodes.RETURN:
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return true;
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}
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}
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return false;
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}
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}
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