| // Copyright (c) 2018, 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.cf.code; |
| |
| import com.android.tools.r8.cf.CfPrinter; |
| import com.android.tools.r8.cf.code.CfFrame.FrameType; |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.CfCode; |
| import com.android.tools.r8.graph.CfCompareHelper; |
| import com.android.tools.r8.graph.DexItemFactory; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.graph.GraphLens; |
| import com.android.tools.r8.graph.InitClassLens; |
| import com.android.tools.r8.graph.ProgramMethod; |
| import com.android.tools.r8.ir.code.NumericType; |
| import com.android.tools.r8.ir.code.ValueType; |
| import com.android.tools.r8.ir.conversion.CfSourceCode; |
| import com.android.tools.r8.ir.conversion.CfState; |
| import com.android.tools.r8.ir.conversion.IRBuilder; |
| import com.android.tools.r8.ir.conversion.LensCodeRewriterUtils; |
| import com.android.tools.r8.ir.optimize.Inliner.ConstraintWithTarget; |
| import com.android.tools.r8.ir.optimize.InliningConstraints; |
| import com.android.tools.r8.naming.NamingLens; |
| import com.android.tools.r8.utils.structural.CompareToVisitor; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| public class CfLogicalBinop extends CfInstruction { |
| |
| public enum Opcode { |
| Shl, |
| Shr, |
| Ushr, |
| And, |
| Or, |
| Xor, |
| } |
| |
| private final Opcode opcode; |
| private final NumericType type; |
| |
| public CfLogicalBinop(Opcode opcode, NumericType type) { |
| assert opcode != null; |
| assert type != null; |
| assert type != NumericType.FLOAT && type != NumericType.DOUBLE; |
| this.opcode = opcode; |
| this.type = type; |
| } |
| |
| @Override |
| public int getCompareToId() { |
| return getAsmOpcode(); |
| } |
| |
| @Override |
| public int internalAcceptCompareTo( |
| CfInstruction other, CompareToVisitor visitor, CfCompareHelper helper) { |
| return CfCompareHelper.compareIdUniquelyDeterminesEquality(this, other); |
| } |
| |
| public NumericType getType() { |
| return type; |
| } |
| |
| public Opcode getOpcode() { |
| return opcode; |
| } |
| |
| public static CfLogicalBinop fromAsm(int opcode) { |
| switch (opcode) { |
| case Opcodes.ISHL: |
| return new CfLogicalBinop(Opcode.Shl, NumericType.INT); |
| case Opcodes.LSHL: |
| return new CfLogicalBinop(Opcode.Shl, NumericType.LONG); |
| case Opcodes.ISHR: |
| return new CfLogicalBinop(Opcode.Shr, NumericType.INT); |
| case Opcodes.LSHR: |
| return new CfLogicalBinop(Opcode.Shr, NumericType.LONG); |
| case Opcodes.IUSHR: |
| return new CfLogicalBinop(Opcode.Ushr, NumericType.INT); |
| case Opcodes.LUSHR: |
| return new CfLogicalBinop(Opcode.Ushr, NumericType.LONG); |
| case Opcodes.IAND: |
| return new CfLogicalBinop(Opcode.And, NumericType.INT); |
| case Opcodes.LAND: |
| return new CfLogicalBinop(Opcode.And, NumericType.LONG); |
| case Opcodes.IOR: |
| return new CfLogicalBinop(Opcode.Or, NumericType.INT); |
| case Opcodes.LOR: |
| return new CfLogicalBinop(Opcode.Or, NumericType.LONG); |
| case Opcodes.IXOR: |
| return new CfLogicalBinop(Opcode.Xor, NumericType.INT); |
| case Opcodes.LXOR: |
| return new CfLogicalBinop(Opcode.Xor, NumericType.LONG); |
| default: |
| throw new Unreachable("Wrong ASM opcode for CfLogicalBinop " + opcode); |
| } |
| } |
| |
| public int getAsmOpcode() { |
| switch (opcode) { |
| case Shl: |
| return type.isWide() ? Opcodes.LSHL : Opcodes.ISHL; |
| case Shr: |
| return type.isWide() ? Opcodes.LSHR : Opcodes.ISHR; |
| case Ushr: |
| return type.isWide() ? Opcodes.LUSHR : Opcodes.IUSHR; |
| case And: |
| return type.isWide() ? Opcodes.LAND : Opcodes.IAND; |
| case Or: |
| return type.isWide() ? Opcodes.LOR : Opcodes.IOR; |
| case Xor: |
| return type.isWide() ? Opcodes.LXOR : Opcodes.IXOR; |
| default: |
| throw new Unreachable("CfLogicalBinop has unknown opcode " + opcode); |
| } |
| } |
| |
| @Override |
| public void print(CfPrinter printer) { |
| printer.print(this); |
| } |
| |
| @Override |
| public void write( |
| AppView<?> appView, |
| ProgramMethod context, |
| DexItemFactory dexItemFactory, |
| GraphLens graphLens, |
| InitClassLens initClassLens, |
| NamingLens namingLens, |
| LensCodeRewriterUtils rewriter, |
| MethodVisitor visitor) { |
| visitor.visitInsn(getAsmOpcode()); |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder, CfState state, CfSourceCode code) { |
| int right = state.pop().register; |
| int left = state.pop().register; |
| int dest = state.push(ValueType.fromNumericType(type)).register; |
| switch (opcode) { |
| case Shl: |
| builder.addShl(type, dest, left, right); |
| break; |
| case Shr: |
| builder.addShr(type, dest, left, right); |
| break; |
| case Ushr: |
| builder.addUshr(type, dest, left, right); |
| break; |
| case And: |
| builder.addAnd(type, dest, left, right); |
| break; |
| case Or: |
| builder.addOr(type, dest, left, right); |
| break; |
| case Xor: |
| builder.addXor(type, dest, left, right); |
| break; |
| default: |
| throw new Unreachable("CfLogicalBinop has unknown opcode " + opcode); |
| } |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, CfCode code, ProgramMethod context) { |
| return inliningConstraints.forBinop(); |
| } |
| |
| @Override |
| public void evaluate( |
| CfFrameVerificationHelper frameBuilder, |
| DexType context, |
| DexType returnType, |
| DexItemFactory factory, |
| InitClassLens initClassLens) { |
| // ..., value1, value2 → |
| // ..., result |
| FrameType value1Type = FrameType.fromNumericType(type, factory); |
| FrameType value2Type; |
| switch (opcode) { |
| case And: |
| case Or: |
| case Xor: |
| value2Type = value1Type; |
| break; |
| default: |
| value2Type = FrameType.initialized(factory.intType); |
| } |
| frameBuilder.popAndDiscard(value1Type, value2Type).push(value1Type); |
| } |
| } |