update 3.8 v2 (#2112)

* update 3.8 v2

* update 3.8

---------

Co-authored-by: yuzhai <yuzhai@nvidia.com>

python/cutlass/backend/c_types.py

@@ -532,29 +532,12 @@ def tuple_factory_(input_tuple, dtype, constants=[0,1]):
                 if first_non_empty_base is None:
                     first_non_empty_base = []
 
-    # Determine whether or not add an additional byte for empty base classes
-    additional_byte = False
-    # Special case for constant tuple
-    if first_non_empty_base is None:
-        additional_byte = False
-    else:
-        for base in first_non_empty_base:
-            if base in empty_bases:
-                additional_byte = True
-                break
-
-    if additional_byte:
-        ctype_fields = [("empty_byte", EmptyByte), ] + ctype_fields
-
     # Create the ctype tuple
     class TupleType(ctypes.Structure):
         _fields_ = ctype_fields
 
         def __init__(self, args) -> None:
-            if additional_byte:
-                fields = self._fields_[1:]
-            else:
-                fields = self._fields_
+            fields = self._fields_
 
             assert len(fields) == len(args)
             for field, arg in zip(fields, args):