Examples with CharType soot.CharType used on opensource projects

Example 6 with CharType

use of soot.CharType in project soot by Sable.

the class ConstantFieldValueFinder method valuesForPrimTypeFields.

/*
   * This method gives values to all the fields in all the classes if they can be determined statically We only care about
   * fields which have primitive types
   */
private void valuesForPrimTypeFields() {
    // go through all the classes
    for (SootClass s : appClasses) {
        debug("\nvaluesforPrimTypeFields", "Processing class " + s.getName());
        String declaringClass = s.getName();
        // all fields of the class
        for (SootField f : s.getFields()) {
            Type fieldType = f.getType();
            if (!(fieldType instanceof PrimType)) {
                continue;
            }
            String combined = declaringClass + combiner + f.getName();
            classNameFieldNameToSootFieldMapping.put(combined, f);
            Object value = null;
            // check for constant value tags
            if (fieldType instanceof DoubleType) {
                DoubleConstantValueTag t = (DoubleConstantValueTag) f.getTag(DoubleConstantValueTag.NAME);
                if (t != null) {
                    value = t.getDoubleValue();
                }
            } else if (fieldType instanceof FloatType) {
                FloatConstantValueTag t = (FloatConstantValueTag) f.getTag(FloatConstantValueTag.NAME);
                if (t != null) {
                    value = t.getFloatValue();
                }
            } else if (fieldType instanceof LongType) {
                LongConstantValueTag t = (LongConstantValueTag) f.getTag(LongConstantValueTag.NAME);
                if (t != null) {
                    value = t.getLongValue();
                }
            } else if (fieldType instanceof CharType) {
                IntegerConstantValueTag t = (IntegerConstantValueTag) f.getTag(IntegerConstantValueTag.NAME);
                if (t != null) {
                    value = t.getIntValue();
                }
            } else if (fieldType instanceof BooleanType) {
                IntegerConstantValueTag t = (IntegerConstantValueTag) f.getTag(IntegerConstantValueTag.NAME);
                if (t != null) {
                    value = (t.getIntValue() != 0);
                }
            } else if (fieldType instanceof IntType || fieldType instanceof ByteType || fieldType instanceof ShortType) {
                IntegerConstantValueTag t = (IntegerConstantValueTag) f.getTag(IntegerConstantValueTag.NAME);
                if (t != null) {
                    value = t.getIntValue();
                }
            }
            // if there was a constant value tag we have its value now
            if (value != null) {
                debug("TAGGED value found for field: " + combined);
                primTypeFieldValueToUse.put(combined, value);
                // continue with next field
                continue;
            }
            // see if the field was never assigned in which case it gets default values
            ArrayList<Value> values = fieldToValues.get(combined);
            if (values == null) {
                if (fieldType instanceof DoubleType) {
                    value = 0.0d;
                } else if (fieldType instanceof FloatType) {
                    value = 0.0f;
                } else if (fieldType instanceof LongType) {
                    value = 0L;
                } else if (fieldType instanceof BooleanType) {
                    value = false;
                } else if (fieldType instanceof IntType || fieldType instanceof ByteType || fieldType instanceof ShortType || fieldType instanceof CharType) {
                    value = 0;
                } else {
                    throw new DecompilationException("Unknown primitive type...please report to developer");
                }
                primTypeFieldValueToUse.put(combined, value);
                debug("DEFAULT value for field: " + combined);
                // continue with next field
                continue;
            }
            // haven't got a tag with value and havent use default since SOME method did define the field atleast once
            // there was some value assigned!!!!!!!!!
            debug("CHECKING USER ASSIGNED VALUES FOR: " + combined);
            // check if they are all constants and that too the same constant
            NumericConstant tempConstant = null;
            for (Value val : values) {
                if (!(val instanceof NumericConstant)) {
                    tempConstant = null;
                    debug("Not numeric constant hence giving up");
                    break;
                }
                if (tempConstant == null) {
                    tempConstant = (NumericConstant) val;
                } else {
                    // check that this value is the same as previous
                    if (!tempConstant.equals(val)) {
                        tempConstant = null;
                        break;
                    }
                }
            }
            if (tempConstant == null) {
                // continue with next field cant do anything about this one
                continue;
            }
            if (tempConstant instanceof LongConstant) {
                long tempVal = ((LongConstant) tempConstant).value;
                if (Long.compare(tempVal, 0L) == 0) {
                    primTypeFieldValueToUse.put(combined, tempVal);
                } else {
                    debug("Not assigning the agreed value since that is not the default value for " + combined);
                }
            } else if (tempConstant instanceof DoubleConstant) {
                double tempVal = ((DoubleConstant) tempConstant).value;
                if (Double.compare(tempVal, 0.0d) == 0) {
                    primTypeFieldValueToUse.put(combined, tempVal);
                } else {
                    debug("Not assigning the agreed value since that is not the default value for " + combined);
                }
            } else if (tempConstant instanceof FloatConstant) {
                float tempVal = ((FloatConstant) tempConstant).value;
                if (Float.compare(tempVal, 0.0f) == 0) {
                    primTypeFieldValueToUse.put(combined, tempVal);
                } else {
                    debug("Not assigning the agreed value since that is not the default value for " + combined);
                }
            } else if (tempConstant instanceof IntConstant) {
                int tempVal = ((IntConstant) tempConstant).value;
                if (Integer.compare(tempVal, 0) == 0) {
                    SootField tempField = classNameFieldNameToSootFieldMapping.get(combined);
                    if (tempField.getType() instanceof BooleanType) {
                        primTypeFieldValueToUse.put(combined, false);
                    // System.out.println("puttingvalue false for"+combined);
                    } else {
                        primTypeFieldValueToUse.put(combined, tempVal);
                    // System.out.println("puttingvalue 0 for"+combined);
                    }
                } else {
                    debug("Not assigning the agreed value since that is not the default value for " + combined);
                }
            } else {
                throw new DecompilationException("Un handled Numberic Constant....report to programmer");
            }
        }
    }
// all classes
}

Example 7 with CharType

use of soot.CharType in project soot by Sable.

the class CP method createInitialInput.

/*
   * constant fields added with KNOWN CONSTANT VALUE formals added with TOP locals added with 0 other fields IGNORED
   */
public void createInitialInput() {
    initialInput = new ArrayList<CPTuple>();
    // adding constant fields
    initialInput.addAll(constantFieldTuples);
    // String className =
    // analyze.getDavaBody().getMethod().getDeclaringClass().getName();
    // adding formals
    formals = new ArrayList<CPTuple>();
    // System.out.println("Adding following formals: with TOP");
    Collection col = methodNode.getDavaBody().get_ParamMap().values();
    Iterator it = col.iterator();
    while (it.hasNext()) {
        Object temp = it.next();
        if (temp instanceof Local) {
            Local tempLocal = (Local) temp;
            if (!(tempLocal.getType() instanceof PrimType)) {
                continue;
            }
            CPVariable newVar = new CPVariable(tempLocal);
            // new tuple set to top since this is a formal and we dont know
            // what value we will get into it
            CPTuple newTuple = new CPTuple(localClassName, newVar, true);
            initialInput.add(newTuple);
            formals.add(newTuple);
        // System.out.print("\t"+tempLocal.getName());
        }
    }
    // System.out.println();
    // adding locals
    List decLocals = methodNode.getDeclaredLocals();
    it = decLocals.iterator();
    locals = new ArrayList<CPTuple>();
    // System.out.println("Adding following locals with default values:");
    while (it.hasNext()) {
        Object temp = it.next();
        if (temp instanceof Local) {
            Local tempLocal = (Local) temp;
            Type localType = tempLocal.getType();
            if (!(localType instanceof PrimType)) {
                continue;
            }
            CPVariable newVar = new CPVariable(tempLocal);
            // store the default value into this object
            Object value;
            // depending on its type
            if (localType instanceof BooleanType) {
                value = new Boolean(false);
            } else if (localType instanceof ByteType) {
                value = new Integer(0);
            } else if (localType instanceof CharType) {
                value = new Integer(0);
            } else if (localType instanceof DoubleType) {
                value = new Double(0);
            } else if (localType instanceof FloatType) {
                value = new Float(0);
            } else if (localType instanceof IntType) {
                value = new Integer(0);
            } else if (localType instanceof LongType) {
                value = new Long(0);
            } else if (localType instanceof ShortType) {
                value = new Integer(0);
            } else {
                throw new DavaFlowAnalysisException("Unknown PrimType");
            }
            CPTuple newTuple = new CPTuple(localClassName, newVar, value);
            /*
         * Commenting the next line since we dont want initial Input to have any locals in it all locals are considered
         * bottom initially
         */
            // initialInput.add(newTuple);
            locals.add(newTuple);
        // System.out.print("\t"+tempLocal.getName());
        }
    // was a local
    }
// System.out.println();
}

Example 8 with CharType

use of soot.CharType in project soot by Sable.

the class AbstractIntLongBinopExpr method getType.

@Override
public Type getType() {
    final Type t1 = op1Box.getValue().getType();
    final Type t2 = op2Box.getValue().getType();
    final IntType tyInt = IntType.v();
    final ByteType tyByte = ByteType.v();
    final ShortType tyShort = ShortType.v();
    final CharType tyChar = CharType.v();
    final BooleanType tyBool = BooleanType.v();
    if ((tyInt.equals(t1) || tyByte.equals(t1) || tyShort.equals(t1) || tyChar.equals(t1) || tyBool.equals(t1)) && (tyInt.equals(t2) || tyByte.equals(t2) || tyShort.equals(t2) || tyChar.equals(t2) || tyBool.equals(t2))) {
        return tyInt;
    }
    final LongType tyLong = LongType.v();
    if (tyLong.equals(t1) && tyLong.equals(t2)) {
        return tyLong;
    }
    return UnknownType.v();
}

Example 9 with CharType

use of soot.CharType in project soot by soot-oss.

the class BafASMBackend method generateInstruction.

/**
 * Emits the bytecode for a single Baf instruction
 *
 * @param mv
 *          The ASM MethodVisitor the bytecode is to be emitted to
 * @param inst
 *          The Baf instruction to be converted into bytecode
 */
protected void generateInstruction(final MethodVisitor mv, Inst inst) {
    inst.apply(new InstSwitch() {

        @Override
        public void caseReturnVoidInst(ReturnVoidInst i) {
            mv.visitInsn(Opcodes.RETURN);
        }

        @Override
        public void caseReturnInst(ReturnInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseArrayType(ArrayType t) {
                    mv.visitInsn(Opcodes.ARETURN);
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.IRETURN);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.IRETURN);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.IRETURN);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DRETURN);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FRETURN);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.IRETURN);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LRETURN);
                }

                @Override
                public void caseRefType(RefType t) {
                    mv.visitInsn(Opcodes.ARETURN);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.IRETURN);
                }

                @Override
                public void caseNullType(NullType t) {
                    mv.visitInsn(Opcodes.ARETURN);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid return type " + t.toString());
                }
            });
        }

        @Override
        public void caseNopInst(NopInst i) {
            mv.visitInsn(Opcodes.NOP);
        }

        @Override
        public void caseJSRInst(JSRInst i) {
            mv.visitJumpInsn(Opcodes.JSR, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void casePushInst(PushInst i) {
            Constant c = i.getConstant();
            if (c instanceof IntConstant) {
                int v = ((IntConstant) c).value;
                switch(v) {
                    case -1:
                        mv.visitInsn(Opcodes.ICONST_M1);
                        break;
                    case 0:
                        mv.visitInsn(Opcodes.ICONST_0);
                        break;
                    case 1:
                        mv.visitInsn(Opcodes.ICONST_1);
                        break;
                    case 2:
                        mv.visitInsn(Opcodes.ICONST_2);
                        break;
                    case 3:
                        mv.visitInsn(Opcodes.ICONST_3);
                        break;
                    case 4:
                        mv.visitInsn(Opcodes.ICONST_4);
                        break;
                    case 5:
                        mv.visitInsn(Opcodes.ICONST_5);
                        break;
                    default:
                        if (v >= Byte.MIN_VALUE && v <= Byte.MAX_VALUE) {
                            mv.visitIntInsn(Opcodes.BIPUSH, v);
                        } else if (v >= Short.MIN_VALUE && v <= Short.MAX_VALUE) {
                            mv.visitIntInsn(Opcodes.SIPUSH, v);
                        } else {
                            mv.visitLdcInsn(v);
                        }
                }
            } else if (c instanceof StringConstant) {
                mv.visitLdcInsn(((StringConstant) c).value);
            } else if (c instanceof ClassConstant) {
                mv.visitLdcInsn(org.objectweb.asm.Type.getType(((ClassConstant) c).getValue()));
            } else if (c instanceof DoubleConstant) {
                double v = ((DoubleConstant) c).value;
                /*
           * Do not emit a DCONST_0 for negative zero, therefore we need the following check.
           */
                if (new Double(v).equals(0.0)) {
                    mv.visitInsn(Opcodes.DCONST_0);
                } else if (v == 1) {
                    mv.visitInsn(Opcodes.DCONST_1);
                } else {
                    mv.visitLdcInsn(v);
                }
            } else if (c instanceof FloatConstant) {
                float v = ((FloatConstant) c).value;
                /*
           * Do not emit a FCONST_0 for negative zero, therefore we need the following check.
           */
                if (new Float(v).equals(0.0f)) {
                    mv.visitInsn(Opcodes.FCONST_0);
                } else if (v == 1) {
                    mv.visitInsn(Opcodes.FCONST_1);
                } else if (v == 2) {
                    mv.visitInsn(Opcodes.FCONST_2);
                } else {
                    mv.visitLdcInsn(v);
                }
            } else if (c instanceof LongConstant) {
                long v = ((LongConstant) c).value;
                if (v == 0) {
                    mv.visitInsn(Opcodes.LCONST_0);
                } else if (v == 1) {
                    mv.visitInsn(Opcodes.LCONST_1);
                } else {
                    mv.visitLdcInsn(v);
                }
            } else if (c instanceof NullConstant) {
                mv.visitInsn(Opcodes.ACONST_NULL);
            } else if (c instanceof MethodHandle) {
                Handle handle;
                if (((MethodHandle) c).isMethodRef()) {
                    SootMethodRef methodRef = ((MethodHandle) c).getMethodRef();
                    handle = new Handle(((MethodHandle) c).getKind(), slashify(methodRef.declaringClass().getName()), methodRef.name(), toTypeDesc(methodRef), methodRef.declaringClass().isInterface());
                } else {
                    SootFieldRef fieldRef = ((MethodHandle) c).getFieldRef();
                    handle = new Handle(((MethodHandle) c).getKind(), slashify(fieldRef.declaringClass().getName()), fieldRef.name(), toTypeDesc(fieldRef.type()), fieldRef.declaringClass().isInterface());
                }
                mv.visitLdcInsn(handle);
            } else {
                throw new RuntimeException("unsupported opcode");
            }
        }

        @Override
        public void casePopInst(PopInst i) {
            if (i.getWordCount() == 2) {
                mv.visitInsn(Opcodes.POP2);
            } else {
                mv.visitInsn(Opcodes.POP);
            }
        }

        @Override
        public void caseIdentityInst(IdentityInst i) {
            Value l = i.getLeftOp();
            Value r = i.getRightOp();
            if (r instanceof CaughtExceptionRef && l instanceof Local) {
                mv.visitVarInsn(Opcodes.ASTORE, localToSlot.get((Local) l));
            // asm handles constant opcodes automatically here
            }
        }

        @Override
        public void caseStoreInst(StoreInst i) {
            final int slot = localToSlot.get(i.getLocal());
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseArrayType(ArrayType t) {
                    mv.visitVarInsn(Opcodes.ASTORE, slot);
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitVarInsn(Opcodes.ISTORE, slot);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitVarInsn(Opcodes.ISTORE, slot);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitVarInsn(Opcodes.ISTORE, slot);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitVarInsn(Opcodes.DSTORE, slot);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitVarInsn(Opcodes.FSTORE, slot);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitVarInsn(Opcodes.ISTORE, slot);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitVarInsn(Opcodes.LSTORE, slot);
                }

                @Override
                public void caseRefType(RefType t) {
                    mv.visitVarInsn(Opcodes.ASTORE, slot);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitVarInsn(Opcodes.ISTORE, slot);
                }

                @Override
                public void caseStmtAddressType(StmtAddressType t) {
                    throw new RuntimeException("JSR not supported, use recent Java compiler!");
                }

                @Override
                public void caseNullType(NullType t) {
                    mv.visitVarInsn(Opcodes.ASTORE, slot);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid local type: " + t);
                }
            });
        }

        @Override
        public void caseGotoInst(GotoInst i) {
            mv.visitJumpInsn(Opcodes.GOTO, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseLoadInst(LoadInst i) {
            final int slot = localToSlot.get(i.getLocal());
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseArrayType(ArrayType t) {
                    mv.visitVarInsn(Opcodes.ALOAD, slot);
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitVarInsn(Opcodes.ILOAD, slot);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitVarInsn(Opcodes.ILOAD, slot);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitVarInsn(Opcodes.ILOAD, slot);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitVarInsn(Opcodes.DLOAD, slot);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitVarInsn(Opcodes.FLOAD, slot);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitVarInsn(Opcodes.ILOAD, slot);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitVarInsn(Opcodes.LLOAD, slot);
                }

                @Override
                public void caseRefType(RefType t) {
                    mv.visitVarInsn(Opcodes.ALOAD, slot);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitVarInsn(Opcodes.ILOAD, slot);
                }

                @Override
                public void caseNullType(NullType t) {
                    mv.visitVarInsn(Opcodes.ALOAD, slot);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid local type: " + t);
                }
            });
        }

        @Override
        public void caseArrayWriteInst(ArrayWriteInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseArrayType(ArrayType t) {
                    mv.visitInsn(Opcodes.AASTORE);
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.BASTORE);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.BASTORE);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.CASTORE);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DASTORE);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FASTORE);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.IASTORE);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LASTORE);
                }

                @Override
                public void caseRefType(RefType t) {
                    mv.visitInsn(Opcodes.AASTORE);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.SASTORE);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid type: " + t);
                }
            });
        }

        @Override
        public void caseArrayReadInst(ArrayReadInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseArrayType(ArrayType t) {
                    mv.visitInsn(Opcodes.AALOAD);
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.BALOAD);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.BALOAD);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.CALOAD);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DALOAD);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FALOAD);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.IALOAD);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LALOAD);
                }

                @Override
                public void caseRefType(RefType t) {
                    mv.visitInsn(Opcodes.AALOAD);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.SALOAD);
                }

                @Override
                public void caseNullType(NullType t) {
                    mv.visitInsn(Opcodes.AALOAD);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid type: " + t);
                }
            });
        }

        @Override
        public void caseIfNullInst(IfNullInst i) {
            mv.visitJumpInsn(Opcodes.IFNULL, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfNonNullInst(IfNonNullInst i) {
            mv.visitJumpInsn(Opcodes.IFNONNULL, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfEqInst(IfEqInst i) {
            mv.visitJumpInsn(Opcodes.IFEQ, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfNeInst(IfNeInst i) {
            mv.visitJumpInsn(Opcodes.IFNE, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfGtInst(IfGtInst i) {
            mv.visitJumpInsn(Opcodes.IFGT, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfGeInst(IfGeInst i) {
            mv.visitJumpInsn(Opcodes.IFGE, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfLtInst(IfLtInst i) {
            mv.visitJumpInsn(Opcodes.IFLT, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfLeInst(IfLeInst i) {
            mv.visitJumpInsn(Opcodes.IFLE, getBranchTargetLabel(i.getTarget()));
        }

        @Override
        public void caseIfCmpEqInst(final IfCmpEqInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseArrayType(ArrayType t) {
                    mv.visitJumpInsn(Opcodes.IF_ACMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DCMPG);
                    mv.visitJumpInsn(Opcodes.IFEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FCMPG);
                    mv.visitJumpInsn(Opcodes.IFEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LCMP);
                    mv.visitJumpInsn(Opcodes.IFEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    mv.visitJumpInsn(Opcodes.IF_ACMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    mv.visitJumpInsn(Opcodes.IF_ACMPEQ, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpNeInst(final IfCmpNeInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseArrayType(ArrayType t) {
                    mv.visitJumpInsn(Opcodes.IF_ACMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DCMPG);
                    mv.visitJumpInsn(Opcodes.IFNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FCMPG);
                    mv.visitJumpInsn(Opcodes.IFNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LCMP);
                    mv.visitJumpInsn(Opcodes.IFNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    mv.visitJumpInsn(Opcodes.IF_ACMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    mv.visitJumpInsn(Opcodes.IF_ACMPNE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpGtInst(final IfCmpGtInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DCMPG);
                    mv.visitJumpInsn(Opcodes.IFGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FCMPG);
                    mv.visitJumpInsn(Opcodes.IFGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LCMP);
                    mv.visitJumpInsn(Opcodes.IFGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpGeInst(final IfCmpGeInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DCMPG);
                    mv.visitJumpInsn(Opcodes.IFGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FCMPG);
                    mv.visitJumpInsn(Opcodes.IFGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LCMP);
                    mv.visitJumpInsn(Opcodes.IFGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPGE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpLtInst(final IfCmpLtInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DCMPG);
                    mv.visitJumpInsn(Opcodes.IFLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FCMPG);
                    mv.visitJumpInsn(Opcodes.IFLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LCMP);
                    mv.visitJumpInsn(Opcodes.IFLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLT, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpLeInst(final IfCmpLeInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DCMPG);
                    mv.visitJumpInsn(Opcodes.IFLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FCMPG);
                    mv.visitJumpInsn(Opcodes.IFLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LCMP);
                    mv.visitJumpInsn(Opcodes.IFLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitJumpInsn(Opcodes.IF_ICMPLE, getBranchTargetLabel(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseStaticGetInst(StaticGetInst i) {
            SootFieldRef field = i.getFieldRef();
            mv.visitFieldInsn(Opcodes.GETSTATIC, slashify(field.declaringClass().getName()), field.name(), toTypeDesc(field.type()));
        }

        @Override
        public void caseStaticPutInst(StaticPutInst i) {
            SootFieldRef field = i.getFieldRef();
            mv.visitFieldInsn(Opcodes.PUTSTATIC, slashify(field.declaringClass().getName()), field.name(), toTypeDesc(field.type()));
        }

        @Override
        public void caseFieldGetInst(FieldGetInst i) {
            SootFieldRef field = i.getFieldRef();
            mv.visitFieldInsn(Opcodes.GETFIELD, slashify(field.declaringClass().getName()), field.name(), toTypeDesc(field.type()));
        }

        @Override
        public void caseFieldPutInst(FieldPutInst i) {
            SootFieldRef field = i.getFieldRef();
            mv.visitFieldInsn(Opcodes.PUTFIELD, slashify(field.declaringClass().getName()), field.name(), toTypeDesc(field.type()));
        }

        @Override
        public void caseInstanceCastInst(InstanceCastInst i) {
            Type castType = i.getCastType();
            if (castType instanceof RefType) {
                mv.visitTypeInsn(Opcodes.CHECKCAST, slashify(((RefType) castType).getClassName()));
            } else if (castType instanceof ArrayType) {
                mv.visitTypeInsn(Opcodes.CHECKCAST, toTypeDesc(castType));
            }
        }

        @Override
        public void caseInstanceOfInst(InstanceOfInst i) {
            Type checkType = i.getCheckType();
            if (checkType instanceof RefType) {
                mv.visitTypeInsn(Opcodes.INSTANCEOF, slashify(((RefType) checkType).getClassName()));
            } else if (checkType instanceof ArrayType) {
                mv.visitTypeInsn(Opcodes.INSTANCEOF, toTypeDesc(checkType));
            }
        }

        @Override
        public void casePrimitiveCastInst(PrimitiveCastInst i) {
            final Type to = i.getToType();
            i.getFromType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    emitIntToTypeCast();
                }

                @Override
                public void caseByteType(ByteType t) {
                    emitIntToTypeCast();
                }

                @Override
                public void caseCharType(CharType t) {
                    emitIntToTypeCast();
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    if (IntType.v().equals(to)) {
                        mv.visitInsn(Opcodes.D2I);
                    } else if (LongType.v().equals(to)) {
                        mv.visitInsn(Opcodes.D2L);
                    } else if (FloatType.v().equals(to)) {
                        mv.visitInsn(Opcodes.D2F);
                    } else {
                        throw new RuntimeException("invalid to-type from double");
                    }
                }

                @Override
                public void caseFloatType(FloatType t) {
                    if (IntType.v().equals(to)) {
                        mv.visitInsn(Opcodes.F2I);
                    } else if (LongType.v().equals(to)) {
                        mv.visitInsn(Opcodes.F2L);
                    } else if (DoubleType.v().equals(to)) {
                        mv.visitInsn(Opcodes.F2D);
                    } else {
                        throw new RuntimeException("invalid to-type from float");
                    }
                }

                @Override
                public void caseIntType(IntType t) {
                    emitIntToTypeCast();
                }

                @Override
                public void caseLongType(LongType t) {
                    if (IntType.v().equals(to)) {
                        mv.visitInsn(Opcodes.L2I);
                    } else if (FloatType.v().equals(to)) {
                        mv.visitInsn(Opcodes.L2F);
                    } else if (DoubleType.v().equals(to)) {
                        mv.visitInsn(Opcodes.L2D);
                    } else {
                        throw new RuntimeException("invalid to-type from long");
                    }
                }

                @Override
                public void caseShortType(ShortType t) {
                    emitIntToTypeCast();
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid from-type: " + t);
                }

                private void emitIntToTypeCast() {
                    if (ByteType.v().equals(to)) {
                        mv.visitInsn(Opcodes.I2B);
                    } else if (CharType.v().equals(to)) {
                        mv.visitInsn(Opcodes.I2C);
                    } else if (ShortType.v().equals(to)) {
                        mv.visitInsn(Opcodes.I2S);
                    } else if (FloatType.v().equals(to)) {
                        mv.visitInsn(Opcodes.I2F);
                    } else if (LongType.v().equals(to)) {
                        mv.visitInsn(Opcodes.I2L);
                    } else if (DoubleType.v().equals(to)) {
                        mv.visitInsn(Opcodes.I2D);
                    } else if (IntType.v().equals(to)) {
                    } else if (BooleanType.v().equals(to)) {
                    } else {
                        throw new RuntimeException("invalid to-type from int");
                    }
                }
            });
        }

        @Override
        public void caseDynamicInvokeInst(DynamicInvokeInst i) {
            List<Value> args = i.getBootstrapArgs();
            final Object[] argsArray = new Object[args.size()];
            int index = 0;
            for (Value v : args) {
                final int j = index;
                v.apply(new ConstantSwitch() {

                    @Override
                    public void defaultCase(Object object) {
                        throw new RuntimeException("Unexpected constant type!");
                    }

                    @Override
                    public void caseStringConstant(StringConstant v) {
                        argsArray[j] = v.value;
                    }

                    @Override
                    public void caseNullConstant(NullConstant v) {
                        /*
               * The Jasmin-backend throws an exception for the null-type.
               */
                        throw new RuntimeException("Unexpected NullType as argument-type in invokedynamic!");
                    }

                    @Override
                    public void caseMethodHandle(MethodHandle handle) {
                        if (handle.isMethodRef()) {
                            SootMethodRef methodRef = handle.getMethodRef();
                            argsArray[j] = new Handle(handle.getKind(), slashify(methodRef.declaringClass().getName()), methodRef.name(), toTypeDesc(methodRef), methodRef.declaringClass().isInterface());
                        } else {
                            SootFieldRef fieldRef = handle.getFieldRef();
                            argsArray[j] = new Handle(handle.getKind(), slashify(fieldRef.declaringClass().getName()), fieldRef.name(), toTypeDesc(fieldRef.type()), fieldRef.declaringClass().isInterface());
                        }
                    }

                    @Override
                    public void caseMethodType(MethodType type) {
                        argsArray[j] = org.objectweb.asm.Type.getType(toTypeDesc(type.getParameterTypes(), type.getReturnType()));
                    }

                    @Override
                    public void caseLongConstant(LongConstant v) {
                        argsArray[j] = v.value;
                    }

                    @Override
                    public void caseIntConstant(IntConstant v) {
                        argsArray[j] = v.value;
                    }

                    @Override
                    public void caseFloatConstant(FloatConstant v) {
                        argsArray[j] = v.value;
                    }

                    @Override
                    public void caseDoubleConstant(DoubleConstant v) {
                        argsArray[j] = v.value;
                    }

                    @Override
                    public void caseClassConstant(ClassConstant v) {
                        argsArray[j] = org.objectweb.asm.Type.getType(v.getValue());
                    }
                });
                ++index;
            }
            SootMethodRef m = i.getMethodRef();
            SootMethodRef bsm = i.getBootstrapMethodRef();
            mv.visitInvokeDynamicInsn(m.name(), toTypeDesc(m), new Handle(i.getHandleTag(), slashify(bsm.declaringClass().getName()), bsm.name(), toTypeDesc(bsm), bsm.declaringClass().isInterface()), argsArray);
        }

        @Override
        public void caseStaticInvokeInst(StaticInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, slashify(m.declaringClass().getName()), m.name(), toTypeDesc(m), m.declaringClass().isInterface() && !m.isStatic());
        }

        @Override
        public void caseVirtualInvokeInst(VirtualInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, slashify(m.declaringClass().getName()), m.name(), toTypeDesc(m), m.declaringClass().isInterface());
        }

        @Override
        public void caseInterfaceInvokeInst(InterfaceInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            SootClass declaration = m.declaringClass();
            boolean isInterface = true;
            if (!declaration.isPhantom() && !declaration.isInterface()) {
                /*
           * If the declaring class of a method called via invokeinterface is a phantom class we assume the declaring class
           * to be an interface. This might not be true in general, but as of today Soot can not evaluate isInterface() for
           * phantom classes correctly.
           */
                isInterface = false;
            }
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, slashify(declaration.getName()), m.name(), toTypeDesc(m), isInterface);
        }

        @Override
        public void caseSpecialInvokeInst(SpecialInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, slashify(m.declaringClass().getName()), m.name(), toTypeDesc(m), m.declaringClass().isInterface());
        }

        @Override
        public void caseThrowInst(ThrowInst i) {
            mv.visitInsn(Opcodes.ATHROW);
        }

        @Override
        public void caseAddInst(AddInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.IADD);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.IADD);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.IADD);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DADD);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FADD);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.IADD);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LADD);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.IADD);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseAndInst(AndInst i) {
            if (i.getOpType().equals(LongType.v())) {
                mv.visitInsn(Opcodes.LAND);
            } else {
                mv.visitInsn(Opcodes.IAND);
            }
        }

        @Override
        public void caseOrInst(OrInst i) {
            if (i.getOpType().equals(LongType.v())) {
                mv.visitInsn(Opcodes.LOR);
            } else {
                mv.visitInsn(Opcodes.IOR);
            }
        }

        @Override
        public void caseXorInst(XorInst i) {
            if (i.getOpType().equals(LongType.v())) {
                mv.visitInsn(Opcodes.LXOR);
            } else {
                mv.visitInsn(Opcodes.IXOR);
            }
        }

        @Override
        public void caseArrayLengthInst(ArrayLengthInst i) {
            mv.visitInsn(Opcodes.ARRAYLENGTH);
        }

        @Override
        public void caseCmpInst(CmpInst i) {
            mv.visitInsn(Opcodes.LCMP);
        }

        @Override
        public void caseCmpgInst(CmpgInst i) {
            if (i.getOpType().equals(FloatType.v())) {
                mv.visitInsn(Opcodes.FCMPG);
            } else {
                mv.visitInsn(Opcodes.DCMPG);
            }
        }

        @Override
        public void caseCmplInst(CmplInst i) {
            if (i.getOpType().equals(FloatType.v())) {
                mv.visitInsn(Opcodes.FCMPL);
            } else {
                mv.visitInsn(Opcodes.DCMPL);
            }
        }

        @Override
        public void caseDivInst(DivInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.IDIV);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.IDIV);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.IDIV);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DDIV);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FDIV);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.IDIV);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LDIV);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.IDIV);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIncInst(IncInst i) {
            if (i.getUseBoxes().get(0).getValue() != i.getDefBoxes().get(0).getValue()) {
                throw new RuntimeException("iinc def and use boxes don't match");
            }
            if (i.getConstant() instanceof IntConstant) {
                mv.visitIincInsn(localToSlot.get(i.getLocal()), ((IntConstant) i.getConstant()).value);
            } else {
                throw new RuntimeException("Wrong constant type for increment!");
            }
        }

        @Override
        public void caseMulInst(MulInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.IMUL);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.IMUL);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.IMUL);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DMUL);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FMUL);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.IMUL);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LMUL);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.IMUL);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseRemInst(RemInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.IREM);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.IREM);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.IREM);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DREM);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FREM);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.IREM);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LREM);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.IREM);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseSubInst(SubInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.ISUB);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.ISUB);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.ISUB);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DSUB);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FSUB);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.ISUB);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LSUB);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.ISUB);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseShlInst(ShlInst i) {
            if (i.getOpType().equals(LongType.v())) {
                mv.visitInsn(Opcodes.LSHL);
            } else {
                mv.visitInsn(Opcodes.ISHL);
            }
        }

        @Override
        public void caseShrInst(ShrInst i) {
            if (i.getOpType().equals(LongType.v())) {
                mv.visitInsn(Opcodes.LSHR);
            } else {
                mv.visitInsn(Opcodes.ISHR);
            }
        }

        @Override
        public void caseUshrInst(UshrInst i) {
            if (i.getOpType().equals(LongType.v())) {
                mv.visitInsn(Opcodes.LUSHR);
            } else {
                mv.visitInsn(Opcodes.IUSHR);
            }
        }

        @Override
        public void caseNewInst(NewInst i) {
            mv.visitTypeInsn(Opcodes.NEW, slashify(i.getBaseType().getClassName()));
        }

        @Override
        public void caseNegInst(NegInst i) {
            i.getOpType().apply(new TypeSwitch() {

                @Override
                public void caseBooleanType(BooleanType t) {
                    mv.visitInsn(Opcodes.INEG);
                }

                @Override
                public void caseByteType(ByteType t) {
                    mv.visitInsn(Opcodes.INEG);
                }

                @Override
                public void caseCharType(CharType t) {
                    mv.visitInsn(Opcodes.INEG);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    mv.visitInsn(Opcodes.DNEG);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    mv.visitInsn(Opcodes.FNEG);
                }

                @Override
                public void caseIntType(IntType t) {
                    mv.visitInsn(Opcodes.INEG);
                }

                @Override
                public void caseLongType(LongType t) {
                    mv.visitInsn(Opcodes.LNEG);
                }

                @Override
                public void caseShortType(ShortType t) {
                    mv.visitInsn(Opcodes.INEG);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseSwapInst(SwapInst i) {
            mv.visitInsn(Opcodes.SWAP);
        }

        @Override
        public void caseDup1Inst(Dup1Inst i) {
            if (sizeOfType(i.getOp1Type()) == 2) {
                mv.visitInsn(Opcodes.DUP2);
            } else {
                mv.visitInsn(Opcodes.DUP);
            }
        }

        @Override
        public void caseDup2Inst(Dup2Inst i) {
            Type firstOpType = i.getOp1Type();
            Type secondOpType = i.getOp2Type();
            // Use a pair of instructions to simulate them.
            if (sizeOfType(firstOpType) == 2) {
                mv.visitInsn(Opcodes.DUP2);
                if (sizeOfType(secondOpType) == 2) {
                    mv.visitInsn(Opcodes.DUP2);
                } else {
                    mv.visitInsn(Opcodes.DUP);
                }
            } else if (sizeOfType(secondOpType) == 2) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitInsn(Opcodes.DUP2);
            } else {
                mv.visitInsn(Opcodes.DUP2);
            }
        }

        @Override
        public void caseDup1_x1Inst(Dup1_x1Inst i) {
            Type opType = i.getOp1Type();
            Type underType = i.getUnder1Type();
            if (sizeOfType(opType) == 2) {
                if (sizeOfType(underType) == 2) {
                    mv.visitInsn(Opcodes.DUP2_X2);
                } else {
                    mv.visitInsn(Opcodes.DUP2_X1);
                }
            } else {
                if (sizeOfType(underType) == 2) {
                    mv.visitInsn(Opcodes.DUP_X2);
                } else {
                    mv.visitInsn(Opcodes.DUP_X1);
                }
            }
        }

        @Override
        public void caseDup1_x2Inst(Dup1_x2Inst i) {
            int toSkip = sizeOfType(i.getUnder1Type()) + sizeOfType(i.getUnder2Type());
            if (sizeOfType(i.getOp1Type()) == 2) {
                if (toSkip == 2) {
                    mv.visitInsn(Opcodes.DUP2_X2);
                } else {
                    throw new RuntimeException("magic not implemented yet");
                }
            } else {
                if (toSkip == 2) {
                    mv.visitInsn(Opcodes.DUP_X2);
                } else {
                    throw new RuntimeException("magic not implemented yet");
                }
            }
        }

        @Override
        public void caseDup2_x1Inst(Dup2_x1Inst i) {
            int toDup = sizeOfType(i.getOp1Type()) + sizeOfType(i.getOp2Type());
            if (toDup == 2) {
                if (sizeOfType(i.getUnder1Type()) == 2) {
                    mv.visitInsn(Opcodes.DUP2_X2);
                } else {
                    mv.visitInsn(Opcodes.DUP2_X1);
                }
            } else {
                throw new RuntimeException("magic not implemented yet");
            }
        }

        @Override
        public void caseDup2_x2Inst(Dup2_x2Inst i) {
            int toDup = sizeOfType(i.getOp1Type()) + sizeOfType(i.getOp2Type());
            int toSkip = sizeOfType(i.getUnder1Type()) + sizeOfType(i.getUnder2Type());
            if (toDup > 2 || toSkip > 2) {
                throw new RuntimeException("magic not implemented yet");
            }
            if (toDup == 2 && toSkip == 2) {
                mv.visitInsn(Opcodes.DUP2_X2);
            } else {
                throw new RuntimeException("VoidType not allowed in Dup2_x2 Instruction");
            }
        }

        @Override
        public void caseNewArrayInst(NewArrayInst i) {
            Type t = i.getBaseType();
            if (t instanceof RefType) {
                mv.visitTypeInsn(Opcodes.ANEWARRAY, slashify(((RefType) t).getClassName()));
            } else if (t instanceof ArrayType) {
                mv.visitTypeInsn(Opcodes.ANEWARRAY, toTypeDesc(t));
            } else {
                int type;
                if (BooleanType.v().equals(t)) {
                    type = Opcodes.T_BOOLEAN;
                } else if (CharType.v().equals(t)) {
                    type = Opcodes.T_CHAR;
                } else if (FloatType.v().equals(t)) {
                    type = Opcodes.T_FLOAT;
                } else if (DoubleType.v().equals(t)) {
                    type = Opcodes.T_DOUBLE;
                } else if (ByteType.v().equals(t)) {
                    type = Opcodes.T_BYTE;
                } else if (ShortType.v().equals(t)) {
                    type = Opcodes.T_SHORT;
                } else if (IntType.v().equals(t)) {
                    type = Opcodes.T_INT;
                } else if (LongType.v().equals(t)) {
                    type = Opcodes.T_LONG;
                } else {
                    throw new RuntimeException("invalid type");
                }
                mv.visitIntInsn(Opcodes.NEWARRAY, type);
            }
        }

        @Override
        public void caseNewMultiArrayInst(NewMultiArrayInst i) {
            mv.visitMultiANewArrayInsn(toTypeDesc(i.getBaseType()), i.getDimensionCount());
        }

        @Override
        public void caseLookupSwitchInst(LookupSwitchInst i) {
            List<IntConstant> values = i.getLookupValues();
            List<Unit> targets = i.getTargets();
            final int size = values.size();
            int[] keys = new int[size];
            Label[] labels = new Label[size];
            for (int j = 0; j < size; j++) {
                keys[j] = values.get(j).value;
                labels[j] = branchTargetLabels.get(targets.get(j));
            }
            mv.visitLookupSwitchInsn(branchTargetLabels.get(i.getDefaultTarget()), keys, labels);
        }

        @Override
        public void caseTableSwitchInst(TableSwitchInst i) {
            List<Unit> targets = i.getTargets();
            final int size = targets.size();
            Label[] labels = new Label[size];
            for (int j = 0; j < size; j++) {
                labels[j] = branchTargetLabels.get(targets.get(j));
            }
            mv.visitTableSwitchInsn(i.getLowIndex(), i.getHighIndex(), branchTargetLabels.get(i.getDefaultTarget()), labels);
        }

        @Override
        public void caseEnterMonitorInst(EnterMonitorInst i) {
            mv.visitInsn(Opcodes.MONITORENTER);
        }

        @Override
        public void caseExitMonitorInst(ExitMonitorInst i) {
            mv.visitInsn(Opcodes.MONITOREXIT);
        }
    });
}

Example 10 with CharType

use of soot.CharType in project soot by soot-oss.

the class JasminClass method emitInst.

void emitInst(Inst inst) {
    LineNumberTag lnTag = (LineNumberTag) inst.getTag(LineNumberTag.NAME);
    if (lnTag != null) {
        emit(".line " + lnTag.getLineNumber());
    }
    inst.apply(new InstSwitch() {

        @Override
        public void caseReturnVoidInst(ReturnVoidInst i) {
            emit("return");
        }

        @Override
        public void caseReturnInst(ReturnInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid return type " + t.toString());
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dreturn");
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("freturn");
                }

                @Override
                public void caseIntType(IntType t) {
                    emit("ireturn");
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("ireturn");
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("ireturn");
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("ireturn");
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("ireturn");
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lreturn");
                }

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("areturn");
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("areturn");
                }

                @Override
                public void caseNullType(NullType t) {
                    emit("areturn");
                }
            });
        }

        @Override
        public void caseNopInst(NopInst i) {
            emit("nop");
        }

        @Override
        public void caseEnterMonitorInst(EnterMonitorInst i) {
            emit("monitorenter");
        }

        @Override
        public void casePopInst(PopInst i) {
            if (i.getWordCount() == 2) {
                emit("pop2");
            } else {
                emit("pop");
            }
        }

        @Override
        public void caseExitMonitorInst(ExitMonitorInst i) {
            emit("monitorexit");
        }

        @Override
        public void caseGotoInst(GotoInst i) {
            emit("goto " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseJSRInst(JSRInst i) {
            emit("jsr " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void casePushInst(PushInst i) {
            final Constant constant = i.getConstant();
            if (constant instanceof IntConstant) {
                IntConstant v = (IntConstant) constant;
                int val = v.value;
                if (val == -1) {
                    emit("iconst_m1");
                } else if (val >= 0 && val <= 5) {
                    emit("iconst_" + val);
                } else if (val >= Byte.MIN_VALUE && val <= Byte.MAX_VALUE) {
                    emit("bipush " + val);
                } else if (val >= Short.MIN_VALUE && val <= Short.MAX_VALUE) {
                    emit("sipush " + val);
                } else {
                    emit("ldc " + v.toString());
                }
            } else if (constant instanceof StringConstant) {
                emit("ldc " + constant.toString());
            } else if (constant instanceof ClassConstant) {
                emit("ldc " + ((ClassConstant) constant).toInternalString());
            } else if (constant instanceof DoubleConstant) {
                DoubleConstant v = (DoubleConstant) constant;
                double val = v.value;
                if ((val == 0) && ((1.0 / val) > 0.0)) {
                    emit("dconst_0");
                } else if (val == 1) {
                    emit("dconst_1");
                } else {
                    emit("ldc2_w " + doubleToString(v));
                }
            } else if (constant instanceof FloatConstant) {
                FloatConstant v = (FloatConstant) constant;
                float val = v.value;
                if ((val == 0) && ((1.0f / val) > 1.0f)) {
                    emit("fconst_0");
                } else if (val == 1) {
                    emit("fconst_1");
                } else if (val == 2) {
                    emit("fconst_2");
                } else {
                    emit("ldc " + floatToString(v));
                }
            } else if (constant instanceof LongConstant) {
                LongConstant v = (LongConstant) constant;
                long val = v.value;
                if (val == 0) {
                    emit("lconst_0");
                } else if (val == 1) {
                    emit("lconst_1");
                } else {
                    emit("ldc2_w " + v.toString());
                }
            } else if (constant instanceof NullConstant) {
                emit("aconst_null");
            } else if (constant instanceof MethodHandle) {
                throw new RuntimeException("MethodHandle constants not supported by Jasmin. Please use -asm-backend.");
            } else {
                throw new RuntimeException("unsupported opcode");
            }
        }

        @Override
        public void caseIdentityInst(IdentityInst i) {
            if (i.getRightOp() instanceof CaughtExceptionRef) {
                Value leftOp = i.getLeftOp();
                if (leftOp instanceof Local) {
                    int slot = localToSlot.get((Local) leftOp);
                    if (slot >= 0 && slot <= 3) {
                        emit("astore_" + slot);
                    } else {
                        emit("astore " + slot);
                    }
                }
            }
        }

        @Override
        public void caseStoreInst(StoreInst i) {
            final int slot = localToSlot.get(i.getLocal());
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseArrayType(ArrayType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("astore_" + slot);
                    } else {
                        emit("astore " + slot);
                    }
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("dstore_" + slot);
                    } else {
                        emit("dstore " + slot);
                    }
                }

                @Override
                public void caseFloatType(FloatType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("fstore_" + slot);
                    } else {
                        emit("fstore " + slot);
                    }
                }

                @Override
                public void caseIntType(IntType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("istore_" + slot);
                    } else {
                        emit("istore " + slot);
                    }
                }

                @Override
                public void caseByteType(ByteType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("istore_" + slot);
                    } else {
                        emit("istore " + slot);
                    }
                }

                @Override
                public void caseShortType(ShortType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("istore_" + slot);
                    } else {
                        emit("istore " + slot);
                    }
                }

                @Override
                public void caseCharType(CharType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("istore_" + slot);
                    } else {
                        emit("istore " + slot);
                    }
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("istore_" + slot);
                    } else {
                        emit("istore " + slot);
                    }
                }

                @Override
                public void caseLongType(LongType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("lstore_" + slot);
                    } else {
                        emit("lstore " + slot);
                    }
                }

                @Override
                public void caseRefType(RefType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("astore_" + slot);
                    } else {
                        emit("astore " + slot);
                    }
                }

                @Override
                public void caseStmtAddressType(StmtAddressType t) {
                    isNextGotoAJsr = true;
                    returnAddressSlot = slot;
                /*
             * if ( slot >= 0 && slot <= 3) emit("astore_" + slot, ); else emit("astore " + slot, );
             */
                }

                @Override
                public void caseNullType(NullType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("astore_" + slot);
                    } else {
                        emit("astore " + slot);
                    }
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid local type:" + t);
                }
            });
        }

        @Override
        public void caseLoadInst(LoadInst i) {
            final int slot = localToSlot.get(i.getLocal());
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseArrayType(ArrayType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("aload_" + slot);
                    } else {
                        emit("aload " + slot);
                    }
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid local type to load" + t);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("dload_" + slot);
                    } else {
                        emit("dload " + slot);
                    }
                }

                @Override
                public void caseFloatType(FloatType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("fload_" + slot);
                    } else {
                        emit("fload " + slot);
                    }
                }

                @Override
                public void caseIntType(IntType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("iload_" + slot);
                    } else {
                        emit("iload " + slot);
                    }
                }

                @Override
                public void caseByteType(ByteType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("iload_" + slot);
                    } else {
                        emit("iload " + slot);
                    }
                }

                @Override
                public void caseShortType(ShortType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("iload_" + slot);
                    } else {
                        emit("iload " + slot);
                    }
                }

                @Override
                public void caseCharType(CharType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("iload_" + slot);
                    } else {
                        emit("iload " + slot);
                    }
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("iload_" + slot);
                    } else {
                        emit("iload " + slot);
                    }
                }

                @Override
                public void caseLongType(LongType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("lload_" + slot);
                    } else {
                        emit("lload " + slot);
                    }
                }

                @Override
                public void caseRefType(RefType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("aload_" + slot);
                    } else {
                        emit("aload " + slot);
                    }
                }

                @Override
                public void caseNullType(NullType t) {
                    if (slot >= 0 && slot <= 3) {
                        emit("aload_" + slot);
                    } else {
                        emit("aload " + slot);
                    }
                }
            });
        }

        @Override
        public void caseArrayWriteInst(ArrayWriteInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("aastore");
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dastore");
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("fastore");
                }

                @Override
                public void caseIntType(IntType t) {
                    emit("iastore");
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lastore");
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("aastore");
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("bastore");
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("bastore");
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("castore");
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("sastore");
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid type: " + t);
                }
            });
        }

        @Override
        public void caseArrayReadInst(ArrayReadInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseArrayType(ArrayType ty) {
                    emit("aaload");
                }

                @Override
                public void caseBooleanType(BooleanType ty) {
                    emit("baload");
                }

                @Override
                public void caseByteType(ByteType ty) {
                    emit("baload");
                }

                @Override
                public void caseCharType(CharType ty) {
                    emit("caload");
                }

                @Override
                public void defaultCase(Type ty) {
                    throw new RuntimeException("invalid base type");
                }

                @Override
                public void caseDoubleType(DoubleType ty) {
                    emit("daload");
                }

                @Override
                public void caseFloatType(FloatType ty) {
                    emit("faload");
                }

                @Override
                public void caseIntType(IntType ty) {
                    emit("iaload");
                }

                @Override
                public void caseLongType(LongType ty) {
                    emit("laload");
                }

                @Override
                public void caseNullType(NullType ty) {
                    emit("aaload");
                }

                @Override
                public void caseRefType(RefType ty) {
                    emit("aaload");
                }

                @Override
                public void caseShortType(ShortType ty) {
                    emit("saload");
                }
            });
        }

        @Override
        public void caseIfNullInst(IfNullInst i) {
            emit("ifnull " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfNonNullInst(IfNonNullInst i) {
            emit("ifnonnull " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfEqInst(IfEqInst i) {
            emit("ifeq " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfNeInst(IfNeInst i) {
            emit("ifne " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfGtInst(IfGtInst i) {
            emit("ifgt " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfGeInst(IfGeInst i) {
            emit("ifge " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfLtInst(IfLtInst i) {
            emit("iflt " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfLeInst(IfLeInst i) {
            emit("ifle " + unitToLabel.get(i.getTarget()));
        }

        @Override
        public void caseIfCmpEqInst(final IfCmpEqInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseIntType(IntType t) {
                    emit("if_icmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("if_icmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("if_icmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("if_icmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("if_icmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dcmpg");
                    emit("ifeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lcmp");
                    emit("ifeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("fcmpg");
                    emit("ifeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("if_acmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("if_acmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    emit("if_acmpeq " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpNeInst(final IfCmpNeInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseIntType(IntType t) {
                    emit("if_icmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("if_icmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("if_icmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("if_icmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("if_icmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dcmpg");
                    emit("ifne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lcmp");
                    emit("ifne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("fcmpg");
                    emit("ifne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("if_acmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("if_acmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    emit("if_acmpne " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpGtInst(final IfCmpGtInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseIntType(IntType t) {
                    emit("if_icmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("if_icmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("if_icmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("if_icmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("if_icmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dcmpg");
                    emit("ifgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lcmp");
                    emit("ifgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("fcmpg");
                    emit("ifgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("if_acmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("if_acmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    emit("if_acmpgt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpGeInst(final IfCmpGeInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseIntType(IntType t) {
                    emit("if_icmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("if_icmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("if_icmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("if_icmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("if_icmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dcmpg");
                    emit("ifge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lcmp");
                    emit("ifge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("fcmpg");
                    emit("ifge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("if_acmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("if_acmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    emit("if_acmpge " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpLtInst(final IfCmpLtInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseIntType(IntType t) {
                    emit("if_icmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("if_icmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("if_icmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("if_icmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("if_icmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dcmpg");
                    emit("iflt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lcmp");
                    emit("iflt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("fcmpg");
                    emit("iflt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("if_acmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("if_acmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    emit("if_acmplt " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseIfCmpLeInst(final IfCmpLeInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                @Override
                public void caseIntType(IntType t) {
                    emit("if_icmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    emit("if_icmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseShortType(ShortType t) {
                    emit("if_icmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseCharType(CharType t) {
                    emit("if_icmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseByteType(ByteType t) {
                    emit("if_icmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("dcmpg");
                    emit("ifle " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("lcmp");
                    emit("ifle " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("fcmpg");
                    emit("ifle " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseArrayType(ArrayType t) {
                    emit("if_acmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseRefType(RefType t) {
                    emit("if_acmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void caseNullType(NullType t) {
                    emit("if_acmple " + unitToLabel.get(i.getTarget()));
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("invalid type");
                }
            });
        }

        @Override
        public void caseStaticGetInst(StaticGetInst i) {
            SootFieldRef field = i.getFieldRef();
            emit("getstatic " + slashify(field.declaringClass().getName()) + "/" + field.name() + " " + jasminDescriptorOf(field.type()));
        }

        @Override
        public void caseStaticPutInst(StaticPutInst i) {
            SootFieldRef field = i.getFieldRef();
            emit("putstatic " + slashify(field.declaringClass().getName()) + "/" + field.name() + " " + jasminDescriptorOf(field.type()));
        }

        @Override
        public void caseFieldGetInst(FieldGetInst i) {
            SootFieldRef field = i.getFieldRef();
            emit("getfield " + slashify(field.declaringClass().getName()) + "/" + field.name() + " " + jasminDescriptorOf(field.type()));
        }

        @Override
        public void caseFieldPutInst(FieldPutInst i) {
            SootFieldRef field = i.getFieldRef();
            emit("putfield " + slashify(field.declaringClass().getName()) + "/" + field.name() + " " + jasminDescriptorOf(field.type()));
        }

        @Override
        public void caseInstanceCastInst(InstanceCastInst i) {
            Type castType = i.getCastType();
            if (castType instanceof RefType) {
                emit("checkcast " + slashify(((RefType) castType).getClassName()));
            } else if (castType instanceof ArrayType) {
                emit("checkcast " + jasminDescriptorOf(castType));
            }
        }

        @Override
        public void caseInstanceOfInst(InstanceOfInst i) {
            Type checkType = i.getCheckType();
            if (checkType instanceof RefType) {
                emit("instanceof " + slashify(checkType.toString()));
            } else if (checkType instanceof ArrayType) {
                emit("instanceof " + jasminDescriptorOf(checkType));
            }
        }

        @Override
        public void caseNewInst(NewInst i) {
            emit("new " + slashify(i.getBaseType().getClassName()));
        }

        @Override
        public void casePrimitiveCastInst(PrimitiveCastInst i) {
            emit(i.toString());
        }

        @Override
        public void caseDynamicInvokeInst(DynamicInvokeInst i) {
            StringBuilder str = new StringBuilder();
            SootMethodRef m = i.getMethodRef();
            str.append("invokedynamic \"").append(m.name()).append("\" ").append(jasminDescriptorOf(m)).append(' ');
            SootMethodRef bsm = i.getBootstrapMethodRef();
            str.append(slashify(bsm.declaringClass().getName())).append('/').append(bsm.name()).append(jasminDescriptorOf(bsm));
            str.append('(');
            for (Iterator<Value> iterator = i.getBootstrapArgs().iterator(); iterator.hasNext(); ) {
                Value val = iterator.next();
                str.append('(').append(jasminDescriptorOf(val.getType())).append(')');
                str.append(escape(val.toString()));
                if (iterator.hasNext()) {
                    str.append(',');
                }
            }
            str.append(')');
            emit(str.toString());
        }

        private String escape(String bsmArgString) {
            return bsmArgString.replace(",", "\\comma").replace(" ", "\\blank").replace("\t", "\\tab").replace("\n", "\\newline");
        }

        @Override
        public void caseStaticInvokeInst(StaticInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            emit("invokestatic " + slashify(m.declaringClass().getName()) + "/" + m.name() + jasminDescriptorOf(m));
        }

        @Override
        public void caseVirtualInvokeInst(VirtualInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            emit("invokevirtual " + slashify(m.declaringClass().getName()) + "/" + m.name() + jasminDescriptorOf(m));
        }

        @Override
        public void caseInterfaceInvokeInst(InterfaceInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            emit("invokeinterface " + slashify(m.declaringClass().getName()) + "/" + m.name() + jasminDescriptorOf(m) + " " + (argCountOf(m) + 1));
        }

        @Override
        public void caseSpecialInvokeInst(SpecialInvokeInst i) {
            SootMethodRef m = i.getMethodRef();
            emit("invokespecial " + slashify(m.declaringClass().getName()) + "/" + m.name() + jasminDescriptorOf(m));
        }

        @Override
        public void caseThrowInst(ThrowInst i) {
            emit("athrow");
        }

        @Override
        public void caseCmpInst(CmpInst i) {
            emit("lcmp");
        }

        @Override
        public void caseCmplInst(CmplInst i) {
            if (i.getOpType().equals(FloatType.v())) {
                emit("fcmpl");
            } else {
                emit("dcmpl");
            }
        }

        @Override
        public void caseCmpgInst(CmpgInst i) {
            if (i.getOpType().equals(FloatType.v())) {
                emit("fcmpg");
            } else {
                emit("dcmpg");
            }
        }

        private void emitOpTypeInst(final String s, final OpTypeArgInst i) {
            i.getOpType().apply(new TypeSwitch<Object>() {

                private void handleIntCase() {
                    emit("i" + s);
                }

                @Override
                public void caseIntType(IntType t) {
                    handleIntCase();
                }

                @Override
                public void caseBooleanType(BooleanType t) {
                    handleIntCase();
                }

                @Override
                public void caseShortType(ShortType t) {
                    handleIntCase();
                }

                @Override
                public void caseCharType(CharType t) {
                    handleIntCase();
                }

                @Override
                public void caseByteType(ByteType t) {
                    handleIntCase();
                }

                @Override
                public void caseLongType(LongType t) {
                    emit("l" + s);
                }

                @Override
                public void caseDoubleType(DoubleType t) {
                    emit("d" + s);
                }

                @Override
                public void caseFloatType(FloatType t) {
                    emit("f" + s);
                }

                @Override
                public void defaultCase(Type t) {
                    throw new RuntimeException("Invalid argument type for div");
                }
            });
        }

        @Override
        public void caseAddInst(AddInst i) {
            emitOpTypeInst("add", i);
        }

        @Override
        public void caseDivInst(DivInst i) {
            emitOpTypeInst("div", i);
        }

        @Override
        public void caseSubInst(SubInst i) {
            emitOpTypeInst("sub", i);
        }

        @Override
        public void caseMulInst(MulInst i) {
            emitOpTypeInst("mul", i);
        }

        @Override
        public void caseRemInst(RemInst i) {
            emitOpTypeInst("rem", i);
        }

        @Override
        public void caseShlInst(ShlInst i) {
            emitOpTypeInst("shl", i);
        }

        @Override
        public void caseAndInst(AndInst i) {
            emitOpTypeInst("and", i);
        }

        @Override
        public void caseOrInst(OrInst i) {
            emitOpTypeInst("or", i);
        }

        @Override
        public void caseXorInst(XorInst i) {
            emitOpTypeInst("xor", i);
        }

        @Override
        public void caseShrInst(ShrInst i) {
            emitOpTypeInst("shr", i);
        }

        @Override
        public void caseUshrInst(UshrInst i) {
            emitOpTypeInst("ushr", i);
        }

        @Override
        public void caseIncInst(IncInst i) {
            if (i.getUseBoxes().get(0).getValue() != i.getDefBoxes().get(0).getValue()) {
                throw new RuntimeException("iinc def and use boxes don't match");
            }
            emit("iinc " + localToSlot.get(i.getLocal()) + " " + i.getConstant());
        }

        @Override
        public void caseArrayLengthInst(ArrayLengthInst i) {
            emit("arraylength");
        }

        @Override
        public void caseNegInst(NegInst i) {
            emitOpTypeInst("neg", i);
        }

        @Override
        public void caseNewArrayInst(NewArrayInst i) {
            if (i.getBaseType() instanceof RefType) {
                emit("anewarray " + slashify(((RefType) i.getBaseType()).getClassName()));
            } else if (i.getBaseType() instanceof ArrayType) {
                emit("anewarray " + jasminDescriptorOf(i.getBaseType()));
            } else {
                emit("newarray " + i.getBaseType().toString());
            }
        }

        @Override
        public void caseNewMultiArrayInst(NewMultiArrayInst i) {
            emit("multianewarray " + jasminDescriptorOf(i.getBaseType()) + " " + i.getDimensionCount());
        }

        @Override
        public void caseLookupSwitchInst(LookupSwitchInst i) {
            emit("lookupswitch");
            List<Unit> targets = i.getTargets();
            List<IntConstant> lookupValues = i.getLookupValues();
            for (int j = 0; j < lookupValues.size(); j++) {
                emit("  " + lookupValues.get(j) + " : " + unitToLabel.get(targets.get(j)));
            }
            emit("  default : " + unitToLabel.get(i.getDefaultTarget()));
        }

        @Override
        public void caseTableSwitchInst(TableSwitchInst i) {
            emit("tableswitch " + i.getLowIndex() + " ; high = " + i.getHighIndex());
            for (Unit t : i.getTargets()) {
                emit("  " + unitToLabel.get(t));
            }
            emit("default : " + unitToLabel.get(i.getDefaultTarget()));
        }

        private boolean isDwordType(Type t) {
            return t instanceof LongType || t instanceof DoubleType || t instanceof DoubleWordType;
        }

        @Override
        public void caseDup1Inst(Dup1Inst i) {
            Type firstOpType = i.getOp1Type();
            if (isDwordType(firstOpType)) {
                // (form 2)
                emit("dup2");
            } else {
                emit("dup");
            }
        }

        @Override
        public void caseDup2Inst(Dup2Inst i) {
            Type firstOpType = i.getOp1Type();
            Type secondOpType = i.getOp2Type();
            // Use a pair of insts to simulate them.
            if (isDwordType(firstOpType)) {
                // (form 2)
                emit("dup2");
                if (isDwordType(secondOpType)) {
                    // (form 2 -- by simulation)
                    emit("dup2");
                } else {
                    // also a simulation
                    emit("dup");
                }
            } else if (isDwordType(secondOpType)) {
                if (isDwordType(firstOpType)) {
                    // (form 2)
                    emit("dup2");
                } else {
                    emit("dup");
                }
                // (form 2 -- complete the simulation)
                emit("dup2");
            } else {
                // form 1
                emit("dup2");
            }
        }

        @Override
        public void caseDup1_x1Inst(Dup1_x1Inst i) {
            Type opType = i.getOp1Type();
            Type underType = i.getUnder1Type();
            if (isDwordType(opType)) {
                if (isDwordType(underType)) {
                    // (form 4)
                    emit("dup2_x2");
                } else {
                    // (form 2)
                    emit("dup2_x1");
                }
            } else {
                if (isDwordType(underType)) {
                    // (form 2)
                    emit("dup_x2");
                } else {
                    // (only one form)
                    emit("dup_x1");
                }
            }
        }

        @Override
        public void caseDup1_x2Inst(Dup1_x2Inst i) {
            Type opType = i.getOp1Type();
            Type under1Type = i.getUnder1Type();
            Type under2Type = i.getUnder2Type();
            if (isDwordType(opType)) {
                if (!isDwordType(under1Type) && !isDwordType(under2Type)) {
                    // (form 2)
                    emit("dup2_x2");
                } else {
                    throw new RuntimeException("magic not implemented yet");
                }
            } else {
                if (isDwordType(under1Type) || isDwordType(under2Type)) {
                    throw new RuntimeException("magic not implemented yet");
                }
            }
            // (form 1)
            emit("dup_x2");
        }

        @Override
        public void caseDup2_x1Inst(Dup2_x1Inst i) {
            Type op1Type = i.getOp1Type();
            Type op2Type = i.getOp2Type();
            Type under1Type = i.getUnder1Type();
            /*
         * From VM Spec: cat1 = category 1 (word type) cat2 = category 2 (doubleword)
         *
         * Form 1: [..., cat1_value3, cat1_value2, cat1_value1]->[..., cat1_value2, cat1_value1, cat1_value3, cat1_value2,
         * cat1_value1] Form 2: [..., cat1_value2, cat2_value1]->[..., cat2_value1, cat1_value2, cat2_value1]
         */
            if (isDwordType(under1Type)) {
                if (!isDwordType(op1Type) && !isDwordType(op2Type)) {
                    throw new RuntimeException("magic not implemented yet");
                } else {
                    // (form 3)
                    emit("dup2_x2");
                }
            } else {
                if ((isDwordType(op1Type) && op2Type != null) || isDwordType(op2Type)) {
                    throw new RuntimeException("magic not implemented yet");
                }
            }
            // (form 1)
            emit("dup2_x1");
        }

        @Override
        public void caseDup2_x2Inst(Dup2_x2Inst i) {
            Type op1Type = i.getOp1Type();
            Type op2Type = i.getOp2Type();
            Type under1Type = i.getUnder1Type();
            Type under2Type = i.getUnder2Type();
            // 07-20-2006 Michael Batchelder
            // NOW handling all types of dup2_x2
            /*
         * From VM Spec: cat1 = category 1 (word type) cat2 = category 2 (doubleword) Form 1: [..., cat1_value4, cat1_value3,
         * cat1_value2, cat1_value1]->[..., cat1_value2, cat1_value1, cat1_value4, cat1_value3, cat1_value2, cat1_value1]
         * Form 2: [..., cat1_value3, cat1_value2, cat2_value1]->[ ..., cat2_value1, cat1_value3, cat1_value2, cat2_value1]
         * Form 3: [..., cat2_value3, cat1_value2, cat1_value1]->[..., cat1_value2, cat1_value1, cat2_value3, cat1_value2,
         * cat1_value1] Form 4: [..., cat2_value2, cat2_value1]->[..., cat2_value1, cat2_value2, cat2_value1]
         */
            boolean malformed = true;
            if (isDwordType(op1Type)) {
                if (op2Type == null && under1Type != null) {
                    if ((under2Type == null && isDwordType(under1Type)) || (!isDwordType(under1Type) && under2Type != null && !isDwordType(under2Type))) {
                        malformed = false;
                    }
                }
            } else if (op1Type != null && op2Type != null && !isDwordType(op2Type)) {
                if ((under2Type == null && isDwordType(under1Type)) || (under1Type != null && !isDwordType(under1Type) && under2Type != null && !isDwordType(under2Type))) {
                    malformed = false;
                }
            }
            if (malformed) {
                throw new RuntimeException("magic not implemented yet");
            }
            // (form 1)
            emit("dup2_x2");
        }

        @Override
        public void caseSwapInst(SwapInst i) {
            emit("swap");
        }
    });
}