blob: 5de1830a44116060c9c4694e6252189537b8d8fa [file] [log] [blame]
// 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;
}
}