| // 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.CfNumberConversion; |
| import com.android.tools.r8.code.DoubleToFloat; |
| import com.android.tools.r8.code.DoubleToInt; |
| import com.android.tools.r8.code.DoubleToLong; |
| import com.android.tools.r8.code.FloatToDouble; |
| import com.android.tools.r8.code.FloatToInt; |
| import com.android.tools.r8.code.FloatToLong; |
| import com.android.tools.r8.code.IntToByte; |
| import com.android.tools.r8.code.IntToChar; |
| import com.android.tools.r8.code.IntToDouble; |
| import com.android.tools.r8.code.IntToFloat; |
| import com.android.tools.r8.code.IntToLong; |
| import com.android.tools.r8.code.IntToShort; |
| import com.android.tools.r8.code.LongToDouble; |
| import com.android.tools.r8.code.LongToFloat; |
| import com.android.tools.r8.code.LongToInt; |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.AppInfo; |
| import com.android.tools.r8.ir.analysis.type.PrimitiveTypeLatticeElement; |
| import com.android.tools.r8.ir.analysis.type.TypeLatticeElement; |
| import com.android.tools.r8.ir.conversion.CfBuilder; |
| import com.android.tools.r8.ir.conversion.DexBuilder; |
| |
| public class NumberConversion extends Unop { |
| |
| public final NumericType from; |
| public final NumericType to; |
| |
| public NumberConversion(NumericType from, NumericType to, Value dest, Value source) { |
| super(dest, source); |
| this.from = from; |
| this.to = to; |
| } |
| |
| @Override |
| public void buildDex(DexBuilder builder) { |
| com.android.tools.r8.code.Instruction instruction; |
| int dest = builder.allocatedRegister(dest(), getNumber()); |
| int src = builder.allocatedRegister(source(), getNumber()); |
| switch (from) { |
| case INT: |
| switch (to) { |
| case BYTE: |
| instruction = new IntToByte(dest, src); |
| break; |
| case CHAR: |
| instruction = new IntToChar(dest, src); |
| break; |
| case SHORT: |
| instruction = new IntToShort(dest, src); |
| break; |
| case LONG: |
| instruction = new IntToLong(dest, src); |
| break; |
| case FLOAT: |
| instruction = new IntToFloat(dest, src); |
| break; |
| case DOUBLE: |
| instruction = new IntToDouble(dest, src); |
| break; |
| default: |
| throw new Unreachable("Unexpected types " + from + ", " + to); |
| } |
| break; |
| case LONG: |
| switch (to) { |
| case INT: |
| instruction = new LongToInt(dest, src); |
| break; |
| case FLOAT: |
| instruction = new LongToFloat(dest, src); |
| break; |
| case DOUBLE: |
| instruction = new LongToDouble(dest, src); |
| break; |
| default: |
| throw new Unreachable("Unexpected types " + from + ", " + to); |
| } |
| break; |
| case FLOAT: |
| switch (to) { |
| case INT: |
| instruction = new FloatToInt(dest, src); |
| break; |
| case LONG: |
| instruction = new FloatToLong(dest, src); |
| break; |
| case DOUBLE: |
| instruction = new FloatToDouble(dest, src); |
| break; |
| default: |
| throw new Unreachable("Unexpected types " + from + ", " + to); |
| } |
| break; |
| case DOUBLE: |
| switch (to) { |
| case INT: |
| instruction = new DoubleToInt(dest, src); |
| break; |
| case LONG: |
| instruction = new DoubleToLong(dest, src); |
| break; |
| case FLOAT: |
| instruction = new DoubleToFloat(dest, src); |
| break; |
| default: |
| throw new Unreachable("Unexpected types " + from + ", " + to); |
| } |
| break; |
| default: |
| throw new Unreachable("Unexpected types " + from + ", " + to); |
| } |
| builder.add(this, instruction); |
| } |
| |
| @Override |
| public boolean identicalNonValueNonPositionParts(Instruction other) { |
| if (!other.isNumberConversion()) { |
| return false; |
| } |
| NumberConversion o = other.asNumberConversion(); |
| return o.from == from && o.to == to; |
| } |
| |
| @Override |
| public int compareNonValueParts(Instruction other) { |
| NumberConversion o = other.asNumberConversion(); |
| int result; |
| result = from.ordinal() - o.from.ordinal(); |
| if (result != 0) { |
| return result; |
| } |
| return to.ordinal() - o.to.ordinal(); |
| } |
| |
| @Override |
| public boolean isNumberConversion() { |
| return true; |
| } |
| |
| @Override |
| public NumberConversion asNumberConversion() { |
| return this; |
| } |
| |
| @Override |
| public TypeLatticeElement evaluate(AppInfo appInfo) { |
| return PrimitiveTypeLatticeElement.fromNumericType(to); |
| } |
| |
| @Override |
| public void buildCf(CfBuilder builder) { |
| builder.add(new CfNumberConversion(from, to)); |
| } |
| } |