Lunderberg opened a new pull request, #17313:
URL: https://github.com/apache/tvm/pull/17313

   Prior to this commit, the `CanonicalizeBindings` pass could identify and 
simplify a value that had been packed into a tuple, then extracted from it.  
(e.g. Simplifying `tup = (x,y); z = tup[0]` into `z = x`.)  However, it could 
not identify a value that had been expanded from a tuple, and then re-bundled.  
(e.g. Simplifying `new_tuple = (tup[0], tup[1])` into `new_tuple = tup`.)
   
   This commit updates `CanonicalizeBindings` to identify and remove 
unnecessary tuple unpacking/repacking.


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