| /* |
| * 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. |
| */ |
| package org.graalvm.compiler.core.test; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| |
| import org.graalvm.compiler.code.CompilationResult; |
| import org.graalvm.compiler.test.ExportingClassLoader; |
| import org.junit.Test; |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.Label; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| import jdk.vm.ci.code.InstalledCode; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| |
| public final class InterfaceMethodHandleTest extends GraalCompilerTest implements Opcodes { |
| private static final MethodHandle INTERFACE_HANDLE_M; |
| private static final MethodHandle INTERFACE_HANDLE_M2; |
| |
| public interface I { |
| int m(); |
| |
| int m2(int a, int b, int c, int d, int e, int f, int g, int h, int i, int j); |
| } |
| |
| static class A implements I { |
| @Override |
| public int m() { |
| return 0; |
| } |
| |
| @Override |
| public int m2(int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) { |
| return 1; |
| } |
| |
| } |
| |
| static class M2Thrower implements I { |
| @Override |
| public int m() { |
| return 0; |
| } |
| |
| @Override |
| public int m2(int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) { |
| throw new InternalError(); |
| } |
| |
| } |
| |
| static { |
| try { |
| MethodType type = MethodType.fromMethodDescriptorString("()I", I.class.getClassLoader()); |
| INTERFACE_HANDLE_M = MethodHandles.lookup().findVirtual(I.class, "m", type); |
| MethodType type2 = MethodType.fromMethodDescriptorString("(IIIIIIIIII)I", I.class.getClassLoader()); |
| INTERFACE_HANDLE_M2 = MethodHandles.lookup().findVirtual(I.class, "m2", type2); |
| } catch (IllegalAccessException | NoSuchMethodException e) { |
| throw new RuntimeException("unable to initialize method handle", e); |
| } |
| } |
| |
| public static Object invokeInterfaceHandle(I o) throws Throwable { |
| return (int) INTERFACE_HANDLE_M.invokeExact(o); |
| } |
| |
| @Test |
| public void testInvokeInterface01() { |
| test("invokeInterfaceHandle", new A()); |
| |
| } |
| |
| @Test |
| public void testInvokeInterface02() throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| test("invokeInterfaceHandle", loader.findClass(NAME).newInstance()); |
| } |
| |
| public static Object invokeInterfaceHandle2(I o, int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) throws Throwable { |
| return (int) INTERFACE_HANDLE_M2.invokeExact(o, a, b, c, d, e, f, g, h, i, j); |
| } |
| |
| @Override |
| protected InstalledCode addMethod(ResolvedJavaMethod method, CompilationResult compResult) { |
| if (method.getDeclaringClass().equals(getMetaAccess().lookupJavaType(M2Thrower.class))) { |
| // Make sure M2Thrower.m2 is invoked from normal code |
| return getBackend().createDefaultInstalledCode(method, compResult); |
| } |
| return super.addMethod(method, compResult); |
| } |
| |
| /** |
| * Try to exercise a mixed calling sequence with regular JIT code calling a method handle that |
| * can't be inlined with an implementation compiled by Graal that throws an exception. |
| */ |
| @Test |
| public void testInvokeInterface03() throws Throwable { |
| A goodInstance = new A(); |
| I badInstance = new M2Thrower(); |
| getCode(getMetaAccess().lookupJavaMethod(getMethod(M2Thrower.class, "m2"))); |
| for (int x = 0; x < 1000; x++) { |
| final int limit = 20000; |
| for (int i = 0; i <= limit; i++) { |
| try { |
| invokeInterfaceHandle2(i < limit - 1 ? goodInstance : badInstance, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10); |
| } catch (InternalError e) { |
| |
| } |
| } |
| } |
| } |
| |
| private static final String BASENAME = InterfaceMethodHandleTest.class.getName(); |
| private static final String NAME = BASENAME + "_B"; |
| private AsmLoader loader = new AsmLoader(UnbalancedMonitorsTest.class.getClassLoader()); |
| |
| /** |
| * Construct a type which claims to implement {@link I} but with incorrect access on {@link I#m} |
| * so that an exception must be thrown. |
| */ |
| public static byte[] bytesForB() { |
| |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| String jvmName = NAME.replace('.', '/'); |
| cw.visit(52, ACC_SUPER | ACC_PUBLIC, jvmName, null, "java/lang/Object", new String[]{BASENAME.replace('.', '/') + "$I"}); |
| |
| mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| mv.visitInsn(RETURN); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| |
| mv = cw.visitMethod(ACC_PRIVATE, "m", "()I", null, null); |
| mv.visitCode(); |
| l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitInsn(ICONST_0); |
| mv.visitInsn(IRETURN); |
| l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| |
| cw.visitEnd(); |
| |
| mv = cw.visitMethod(ACC_PRIVATE, "m2", "(IIIIIIIIII)I", null, null); |
| mv.visitCode(); |
| l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitInsn(ICONST_0); |
| mv.visitInsn(IRETURN); |
| l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitMaxs(1, 11); |
| mv.visitEnd(); |
| |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| |
| public static class AsmLoader extends ExportingClassLoader { |
| Class<?> loaded; |
| |
| public AsmLoader(ClassLoader parent) { |
| super(parent); |
| } |
| |
| @Override |
| protected Class<?> findClass(String name) throws ClassNotFoundException { |
| if (name.equals(NAME)) { |
| if (loaded != null) { |
| return loaded; |
| } |
| byte[] bytes = bytesForB(); |
| return (loaded = defineClass(name, bytes, 0, bytes.length)); |
| } else { |
| return super.findClass(name); |
| } |
| } |
| } |
| } |