| // 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.graph.AppView; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.ir.optimize.Inliner.ConstraintWithTarget; |
| import com.android.tools.r8.ir.optimize.InliningConstraints; |
| import java.util.List; |
| |
| public abstract class JumpInstruction extends Instruction { |
| |
| public JumpInstruction() { |
| super(null); |
| } |
| |
| public JumpInstruction(Value in) { |
| super(null, in); |
| } |
| |
| public JumpInstruction(List<? extends Value> ins) { |
| super(null, ins); |
| } |
| |
| public BasicBlock fallthroughBlock() { |
| return null; |
| } |
| |
| public void setFallthroughBlock(BasicBlock block) { |
| assert false : "We should not change the fallthrough of a JumpInstruction with no fallthrough."; |
| } |
| |
| @Override |
| public boolean canBeDeadCode(AppView<?> appView, IRCode code) { |
| return false; |
| } |
| |
| @Override |
| public boolean isJumpInstruction() { |
| return true; |
| } |
| |
| @Override |
| public JumpInstruction asJumpInstruction() { |
| return this; |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, DexType invocationContext) { |
| return inliningConstraints.forJumpInstruction(); |
| } |
| |
| @Override |
| public boolean hasInvariantOutType() { |
| return true; |
| } |
| |
| @Override |
| public boolean instructionMayTriggerMethodInvocation(AppView<?> appView, DexType context) { |
| return false; |
| } |
| } |