Mercurial > hg > graal-compiler
view test/compiler/jsr292/VMAnonymousClasses.java @ 20934:033dd4494705
Fix compare in LoweringPhase.processBlock
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Tue, 14 Apr 2015 17:23:37 +0200 |
parents | 9dc314de223d |
children |
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/* * Copyright (c) 2014, 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 8058828 * @run main/bootclasspath -Xbatch VMAnonymousClasses */ import jdk.internal.org.objectweb.asm.ClassWriter; import jdk.internal.org.objectweb.asm.MethodVisitor; import jdk.internal.org.objectweb.asm.Opcodes; import sun.misc.Unsafe; import java.lang.invoke.ConstantCallSite; import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodType; import java.lang.invoke.MutableCallSite; import java.lang.invoke.VolatileCallSite; public class VMAnonymousClasses { static final String TEST_METHOD_NAME = "constant"; static final Unsafe UNSAFE = Unsafe.getUnsafe(); static int getConstantPoolSize(byte[] classFile) { // The first few bytes: // u4 magic; // u2 minor_version; // u2 major_version; // u2 constant_pool_count; return ((classFile[8] & 0xFF) << 8) | (classFile[9] & 0xFF); } static void test(Object value) throws ReflectiveOperationException { System.out.printf("Test: %s", value != null ? value.getClass() : "null"); ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES); cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, "Test", null, "java/lang/Object", null); MethodVisitor mv = cw.visitMethod(Opcodes.ACC_STATIC | Opcodes.ACC_PUBLIC, TEST_METHOD_NAME, "()Ljava/lang/Object;", null, null); String placeholder = "CONSTANT"; int index = cw.newConst(placeholder); mv.visitLdcInsn(placeholder); mv.visitInsn(Opcodes.ARETURN); mv.visitMaxs(0, 0); mv.visitEnd(); byte[] classFile = cw.toByteArray(); Object[] cpPatches = new Object[getConstantPoolSize(classFile)]; cpPatches[index] = value; Class<?> test = UNSAFE.defineAnonymousClass(VMAnonymousClasses.class, classFile, cpPatches); Object expectedResult = (value != null) ? value : placeholder; for (int i = 0; i<15000; i++) { Object result = test.getMethod(TEST_METHOD_NAME).invoke(null); if (result != expectedResult) { throw new AssertionError(String.format("Wrong value returned: %s != %s", value, result)); } } System.out.println(" PASSED"); } public static void main(String[] args) throws ReflectiveOperationException { // Objects test(new Object()); test("TEST"); test(new VMAnonymousClasses()); test(null); // Class test(String.class); // Arrays test(new boolean[0]); test(new byte[0]); test(new char[0]); test(new short[0]); test(new int[0]); test(new long[0]); test(new float[0]); test(new double[0]); test(new Object[0]); // Multi-dimensional arrays test(new byte[0][0]); test(new Object[0][0]); // MethodHandle-related MethodType mt = MethodType.methodType(void.class, String[].class); MethodHandle mh = MethodHandles.lookup().findStatic(VMAnonymousClasses.class, "main", mt); test(mt); test(mh); test(new ConstantCallSite(mh)); test(new MutableCallSite(MethodType.methodType(void.class))); test(new VolatileCallSite(MethodType.methodType(void.class))); System.out.println("TEST PASSED"); } }