Hzfengsy commented on code in PR #12797:
URL: https://github.com/apache/tvm/pull/12797#discussion_r972550576
##########
src/tir/schedule/analysis/layout.cc:
##########
@@ -167,20 +167,25 @@ Optional<IndexMap> SuggestIndexMap(const Buffer& buffer,
const Array<PrimExpr>&
}
return a.lower_factor > b.lower_factor;
});
+ // Compute the inverse permutation by argsort
+ std::vector<int> inverse_order = order;
+ std::sort(inverse_order.begin(), inverse_order.end(),
+ [&order](int _a, int _b) -> bool { return order[_a] < order[_b];
});
// Step 5. Create the indexing mapping
auto f_alter_layout = [f_flatten_index = std::move(f_flatten_index), //
- split_exprs = std::move(split_exprs), //
- order = std::move(order), //
- shape = buffer->shape, //
+ &split_exprs, //
+ &order, //
+ & shape = buffer->shape, //
Review Comment:
```suggestion
& shape = buffer->shape, //
```
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