zxybazh commented on issue #12135:
URL: https://github.com/apache/tvm/issues/12135#issuecomment-1195889152

   Corrected TIR would not cause the problem, please defined the write buffer 
for root block as follows:
   ```
   @tvm.script.ir_module
   class Module:
       @T.prim_func
       def bad_message(
           B: T.Buffer[(64), "float32"],
           B_pack: T.Buffer[(8, 8), "float32"],
       ):
           with T.block("root"):
               T.reads()
               T.writes()
               for jo in range(8):
                   for ji in range(8):
                       with T.block():
                           vo, vi = T.axis.remap("SS", [jo, ji])
                           B_pack[vo, vi] = B[vo * 8 + vi]
   ```
   And still the problem lies in bad message for error reporting, would work on 
that later.


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