blob: 1e46cfc78bae866119b2f5f6cd869b70abc8bc03 [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.code;
import com.android.tools.r8.ir.conversion.IRBuilder;
import com.android.tools.r8.utils.structural.CompareToVisitor;
public class Nop extends Format10x {
public static final int OPCODE = 0x0;
public static final String NAME = "Nop";
public static final String SMALI_NAME = "nop";
Nop(int high, BytecodeStream stream) {
super(high, stream);
}
public Nop() {
}
public static Nop create(int high, BytecodeStream stream) {
switch (high) {
case 0x01:
return new PackedSwitchPayload(high, stream);
case 0x02:
return new SparseSwitchPayload(high, stream);
case 0x03:
return new FillArrayDataPayload(high, stream);
default:
return new Nop(high, stream);
}
}
// Notice that this must be overridden by the "Nop" subtypes!
@Override
int internalAcceptCompareTo(Instruction other, CompareToVisitor visitor) {
return DexCompareHelper.compareIdUniquelyDeterminesEquality(this, other);
}
// Notice that this must be overridden by the "Nop" subtypes!
@Override
public int hashCode() {
return NAME.hashCode() * 7;
}
@Override
public String getName() {
return NAME;
}
@Override
public String getSmaliName() {
return SMALI_NAME;
}
@Override
public int getOpcode() {
return OPCODE;
}
@Override
public void buildIR(IRBuilder builder) {
// The IR does not represent nops.
// Nops needed by dex, eg, for tight infinite loops, will be created upon conversion to dex.
}
}