src/main/java/com/android/tools/r8/ir/code/Xor.java

// 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.dex.code.DexInstruction;
import com.android.tools.r8.dex.code.DexXorInt;
import com.android.tools.r8.dex.code.DexXorInt2Addr;
import com.android.tools.r8.dex.code.DexXorIntLit16;
import com.android.tools.r8.dex.code.DexXorIntLit8;
import com.android.tools.r8.dex.code.DexXorLong;
import com.android.tools.r8.dex.code.DexXorLong2Addr;
import java.util.Set;

public class Xor extends LogicalBinop {

  public Xor(NumericType type, Value dest, Value left, Value right) {
    super(type, dest, left, right);
  }

  @Override
  public int opcode() {
    return Opcodes.XOR;
  }

  @Override
  public <T> T accept(InstructionVisitor<T> visitor) {
    return visitor.visit(this);
  }

  @Override
  public boolean isXor() {
    return true;
  }

  @Override
  public Xor asXor() {
    return this;
  }

  @Override
  public boolean isCommutative() {
    return true;
  }

  @Override
  public DexInstruction CreateInt(int dest, int left, int right) {
    return new DexXorInt(dest, left, right);
  }

  @Override
  public DexInstruction CreateLong(int dest, int left, int right) {
    return new DexXorLong(dest, left, right);
  }

  @Override
  public DexInstruction CreateInt2Addr(int left, int right) {
    return new DexXorInt2Addr(left, right);
  }

  @Override
  public DexInstruction CreateLong2Addr(int left, int right) {
    return new DexXorLong2Addr(left, right);
  }

  @Override
  public DexInstruction CreateIntLit8(int dest, int left, int constant) {
    return new DexXorIntLit8(dest, left, constant);
  }

  @Override
  public DexInstruction CreateIntLit16(int dest, int left, int constant) {
    return new DexXorIntLit16(dest, left, constant);
  }

  @Override
  public boolean identicalNonValueNonPositionParts(Instruction other) {
    return other.isXor() && other.asXor().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.Xor;
  }

  @Override
  public boolean outTypeKnownToBeBoolean(Set<Phi> seen) {
    return leftValue().knownToBeBoolean(seen) && rightValue().knownToBeBoolean(seen);
  }
}