Lunderberg commented on issue #12852:
URL: https://github.com/apache/tvm/issues/12852#issuecomment-1253867588
Ah, I think I found the better fix. There's some copy/paste between
`Inverse` and `NonSurjectiveInverse` that I should have cleaned up when
implementing it, and there's better handling in `Inverse` that didn't make its
way into `NonSurjectiveInverse`. In `NonSurjectiveInverse`, the following
section should be used. This way, for any extent = 1 ranges, it still
appropriately generates the inverse.
```c++
// Unpack the map to an array, maintaining the same parameter order.
Array<PrimExpr> inverse_exprs;
for (int i = 0, n = (*this)->initial_indices.size(); i < n; ++i) {
Var index = (*this)->initial_indices[i];
if (is_one(initial_ranges[i]->extent) &&
!inverse_exprs_map.count(index)) {
inverse_exprs.push_back(initial_ranges[i]->min);
} else {
inverse_exprs.push_back(inverse_exprs_map.at(index));
}
}
```
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