Mercurial > jdk8-mips64-public > langtools / annotate
test/tools/javac/8009170/RedundantByteCodeInArrayTest.java@7909abb85562 (annotated)
test/tools/javac/8009170/RedundantByteCodeInArrayTest.java
Wed, 14 Nov 2018 10:18:25 -0800
- author
- diazhou
- date
- Wed, 14 Nov 2018 10:18:25 -0800
- changeset 3762
- 7909abb85562
- parent 0
- 959103a6100f
- permissions
- -rw-r--r--
Added tag jdk8u201-b04 for changeset a7f48b9dfb82
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test |
| aoqi@0 | 26 | * @bug 8009170 |
| aoqi@0 | 27 | * @summary Regression: javac generates redundant bytecode in assignop involving |
| aoqi@0 | 28 | * arrays |
| aoqi@0 | 29 | * @run main RedundantByteCodeInArrayTest |
| aoqi@0 | 30 | */ |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | import java.io.File; |
| aoqi@0 | 33 | import java.io.IOException; |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | import com.sun.tools.classfile.Attribute; |
| aoqi@0 | 36 | import com.sun.tools.classfile.ClassFile; |
| aoqi@0 | 37 | import com.sun.tools.classfile.Code_attribute; |
| aoqi@0 | 38 | import com.sun.tools.classfile.Code_attribute.InvalidIndex; |
| aoqi@0 | 39 | import com.sun.tools.classfile.ConstantPool; |
| aoqi@0 | 40 | import com.sun.tools.classfile.ConstantPoolException; |
| aoqi@0 | 41 | import com.sun.tools.classfile.Descriptor.InvalidDescriptor; |
| aoqi@0 | 42 | import com.sun.tools.classfile.Method; |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | public class RedundantByteCodeInArrayTest { |
| aoqi@0 | 45 | public static void main(String[] args) |
| aoqi@0 | 46 | throws IOException, ConstantPoolException, InvalidDescriptor, InvalidIndex { |
| aoqi@0 | 47 | new RedundantByteCodeInArrayTest() |
| aoqi@0 | 48 | .checkClassFile(new File(System.getProperty("test.classes", "."), |
| aoqi@0 | 49 | RedundantByteCodeInArrayTest.class.getName() + ".class")); |
| aoqi@0 | 50 | } |
| aoqi@0 | 51 | |
| aoqi@0 | 52 | void arrMethod(int[] array, int p, int inc) { |
| aoqi@0 | 53 | array[p] += inc; |
| aoqi@0 | 54 | } |
| aoqi@0 | 55 | |
| aoqi@0 | 56 | void checkClassFile(File file) |
| aoqi@0 | 57 | throws IOException, ConstantPoolException, InvalidDescriptor, InvalidIndex { |
| aoqi@0 | 58 | ClassFile classFile = ClassFile.read(file); |
| aoqi@0 | 59 | ConstantPool constantPool = classFile.constant_pool; |
| aoqi@0 | 60 | |
| aoqi@0 | 61 | //lets get all the methods in the class file. |
| aoqi@0 | 62 | for (Method method : classFile.methods) { |
| aoqi@0 | 63 | if (method.getName(constantPool).equals("arrMethod")) { |
| aoqi@0 | 64 | Code_attribute code = (Code_attribute) method.attributes |
| aoqi@0 | 65 | .get(Attribute.Code); |
| aoqi@0 | 66 | if (code.max_locals > 4) |
| aoqi@0 | 67 | throw new AssertionError("Too many locals for method arrMethod"); |
| aoqi@0 | 68 | } |
| aoqi@0 | 69 | } |
| aoqi@0 | 70 | } |
| aoqi@0 | 71 | } |
