| /* |
| * Copyright (c) 2012, 2018, 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 vm.compiler.coverage.parentheses.share; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| public enum Instruction { |
| |
| //"+1": instructions that increase stack |
| ICONST_M1(2), |
| ICONST_0(3), |
| ICONST_1(4), |
| ICONST_2(5), |
| ICONST_3(6), |
| ICONST_4(7), |
| ICONST_5(8), |
| DUP(89), |
| |
| ///"-1": instructions that decrease stack |
| IADD(96), |
| ISUB(100), |
| IMUL(104), |
| IAND(126), |
| IOR(128), |
| IXOR(130), |
| ISHL(120), |
| ISHR(122), |
| |
| //"0": instructions that doesn't change stack |
| SWAP(95), |
| INEG(116), |
| NOP(0); |
| |
| public static final List<Instruction> stackUp = Arrays.asList( |
| ICONST_M1, ICONST_0, ICONST_1, ICONST_2, |
| ICONST_3, ICONST_4, ICONST_5, DUP |
| ); |
| |
| public static final List<Instruction> stackDown = Arrays.asList( |
| IADD, ISUB, IMUL, IAND, |
| IOR, IXOR, ISHL, ISHR |
| ); |
| |
| public static final List<Instruction> neutral = Arrays.asList(SWAP, INEG, NOP); |
| |
| public final int opCode; |
| |
| Instruction(int opCode) { |
| this.opCode = opCode; |
| } |
| |
| } |