Hzfengsy commented on a change in pull request #8768:
URL: https://github.com/apache/tvm/pull/8768#discussion_r691965112



##########
File path: include/tvm/ir/type.h
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@@ -164,10 +164,17 @@ class PointerTypeNode : public TypeNode {
   }
 
   bool SEqualReduce(const PointerTypeNode* other, SEqualReducer equal) const {
-    return equal(element_type, other->element_type);
+    // Make "global" equal to ""
+    String lhs_scope = storage_scope.empty() ? "global" : storage_scope;

Review comment:
       Sorry for not explaining clearly. To be specific, I choose one test case 
`tests/python/unittest/test_runtime_module_based_interface.py` for detail 
explanation:
   1. I repeat your changes that you mentioned before. The testcase passes.
   2. However, when I add `ICHECK(!s->scope.empty())` at 
`tvm/src/te/schedule/schedule_ops.cc` line 54. It fails.
   3. Then, I enforce it to be "global" by changing lines, it also fails:
       ```cpp
       String storage_scope = s->scope.empty() ? "global" : s->scope;
       return s->op->BuildRealize(s, dom_map, pipeline, storage_scope);
       ```




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