| // Copyright (c) 2016, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| package com.android.tools.r8.code; |
| |
| import com.android.tools.r8.ir.analysis.type.TypeLatticeElement; |
| import com.android.tools.r8.ir.code.SingleConstant; |
| import com.android.tools.r8.ir.conversion.IRBuilder; |
| import com.android.tools.r8.naming.ClassNameMapper; |
| import com.android.tools.r8.utils.StringUtils; |
| |
| public class Const4 extends Format11n implements SingleConstant { |
| |
| public static final int OPCODE = 0x12; |
| public static final String NAME = "Const4"; |
| public static final String SMALI_NAME = "const/4"; |
| |
| Const4(int high, BytecodeStream stream) { |
| super(high, stream); |
| } |
| |
| public Const4(int dest, int constant) { |
| super(dest, constant); |
| } |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @Override |
| public String getSmaliName() { |
| return SMALI_NAME; |
| } |
| |
| @Override |
| public int getOpcode() { |
| return OPCODE; |
| } |
| |
| @Override |
| public int decodedValue() { |
| return B; |
| } |
| |
| @Override |
| public String toString(ClassNameMapper naming) { |
| return formatString("v" + A + ", " + StringUtils.hexString(decodedValue(), 1) + |
| " (" + decodedValue() + ")"); |
| } |
| |
| @Override |
| public String toSmaliString(ClassNameMapper naming) { |
| return formatSmaliString("v" + A + ", " + StringUtils.hexString(decodedValue(), 2) + |
| " # " + decodedValue()); |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder) { |
| int value = decodedValue(); |
| TypeLatticeElement typeLattice = |
| value == 0 ? TypeLatticeElement.TOP : TypeLatticeElement.SINGLE; |
| builder.addConst(typeLattice, A, value); |
| } |
| } |