junrushao opened a new pull request, #15163:
URL: https://github.com/apache/tvm/pull/15163
There are cases where the shapes of input buffers are symbolic, but the
first symbol is a composite PrimExpr rather than a TIR Var, which the original
implementation does not take this into account.
Example:
```python
@T.prim_func
def main(a: T.handle, b: T.handle):
m = T.int64()
A = T.match_buffer(a, (m * 2,)) // `m` first appears as composite
B = T.match_buffer(b, (m, 2))
```
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