public BSwapInst(Type fromType, Type toType) {
if (fromType instanceof LongType || fromType instanceof DoubleType)
throw new RuntimeException("fromType is LongType or DoubleType !");
if (toType instanceof LongType || toType instanceof DoubleType)
throw new RuntimeException("toType is LongType or DoubleType !");
mFromType = Baf.getDescriptorTypeOf(fromType);
mToType = Baf.getDescriptorTypeOf(toType);
}
