[GitHub] [tvm] junrushao commented on a diff in pull request #12450: [TIR][Schedule] enhance compute_at and reverse_compute_at primitive to choose possible position

[GitBox]

junrushao commented on code in PR #12450:
URL: https://github.com/apache/tvm/pull/12450#discussion_r955644743


##########
python/tvm/tir/schedule/schedule.py:
##########
@@ -1303,6 +1304,11 @@ def compute_at(
         preserve_unit_loops: bool
             Whether to keep the trivial loops whose extents are 1
 
+        index: int
+            The block index of the loop body subtree blocks
+            -1 means inserted into the last possible insertion point
+            -2 means inserted into the first possible insertion point

Review Comment:
   ```suggestion
               The block index of the loop body subtree blocks:
               - `index = -1` means inserted into the last possible insertion 
point;
               - `index = -2` means inserted into the first possible insertion 
point;
               - Otherwise, `index` is a nonnegative number that indicates the 
insertion point
   ```



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