[GitHub] [incubator-tvm] kparzysz-quic commented on a change in pull request #5491: Make "none" DataType explicit

[GitBox <gi...@apache.org>]

kparzysz-quic commented on a change in pull request #5491:
URL: https://github.com/apache/incubator-tvm/pull/5491#discussion_r418263860



##########
File path: include/tvm/runtime/data_type.h
##########
@@ -211,6 +215,13 @@ class DataType {
   static DataType Handle(int bits = 64, int lanes = 1) {
     return DataType(kHandle, bits, lanes);
   }
+  /*!
+   * \brief Construct a None type.
+   * \return The constructed data type.
+   */
+  static DataType None() {

Review comment:
       I'm not sure what to do in `GetType`.  It checks for a pointer type, and for other expressions it just returns the DataType member, so it seems like there is no extra handling needed.
   
   Btw, the if statement doesn't seem to be doing anything, since it's followed by the exact same return statement:
   https://github.com/apache/incubator-tvm/blob/master/src/tir/ir/op.cc#L61




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