| // 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.ir.code; |
| |
| import com.android.tools.r8.cf.code.CfLogicalBinop; |
| import com.android.tools.r8.code.UshrInt; |
| import com.android.tools.r8.code.UshrInt2Addr; |
| import com.android.tools.r8.code.UshrIntLit8; |
| import com.android.tools.r8.code.UshrLong; |
| import com.android.tools.r8.code.UshrLong2Addr; |
| import com.android.tools.r8.errors.Unreachable; |
| |
| public class Ushr extends LogicalBinop { |
| |
| public Ushr(NumericType type, Value dest, Value left, Value right) { |
| super(type, dest, left, right); |
| } |
| |
| @Override |
| public int opcode() { |
| return Opcodes.USHR; |
| } |
| |
| @Override |
| public <T> T accept(InstructionVisitor<T> visitor) { |
| return visitor.visit(this); |
| } |
| |
| @Override |
| boolean fitsInDexInstruction(Value value) { |
| // The ushr instruction only has the /lit8 variant. |
| return fitsInLit8Instruction(value); |
| } |
| |
| @Override |
| public boolean isUshr() { |
| return true; |
| } |
| |
| @Override |
| public Ushr asUshr() { |
| return this; |
| } |
| |
| @Override |
| public boolean isCommutative() { |
| return false; |
| } |
| |
| @Override |
| public com.android.tools.r8.code.Instruction CreateInt(int dest, int left, int right) { |
| return new UshrInt(dest, left, right); |
| } |
| |
| @Override |
| public com.android.tools.r8.code.Instruction CreateLong(int dest, int left, int right) { |
| return new UshrLong(dest, left, right); |
| } |
| |
| @Override |
| public com.android.tools.r8.code.Instruction CreateInt2Addr(int left, int right) { |
| return new UshrInt2Addr(left, right); |
| } |
| |
| @Override |
| public com.android.tools.r8.code.Instruction CreateLong2Addr(int left, int right) { |
| return new UshrLong2Addr(left, right); |
| } |
| |
| @Override |
| public com.android.tools.r8.code.Instruction CreateIntLit8(int dest, int left, int constant) { |
| return new UshrIntLit8(dest, left, constant); |
| } |
| |
| @Override |
| public com.android.tools.r8.code.Instruction CreateIntLit16(int dest, int left, int constant) { |
| throw new Unreachable("Unsupported instruction ShrIntLit16"); |
| } |
| |
| @Override |
| public boolean identicalNonValueNonPositionParts(Instruction other) { |
| return other.isUshr() && other.asUshr().type == type; |
| } |
| |
| @Override |
| int foldIntegers(int left, int right) { |
| return left >>> right; |
| } |
| |
| @Override |
| long foldLongs(long left, long right) { |
| return left >>> right; |
| } |
| |
| @Override |
| CfLogicalBinop.Opcode getCfOpcode() { |
| return CfLogicalBinop.Opcode.Ushr; |
| } |
| } |