masahi commented on code in PR #13565:
URL: https://github.com/apache/tvm/pull/13565#discussion_r1041369984
##########
src/tir/schedule/primitive/layout_transformation.cc:
##########
@@ -1079,7 +1079,12 @@ IndexMap LegalizeIndexMapDType(const IndexMap&
index_map, const Buffer& buf) {
return SubstituteWithDataTypeLegalization(index,
[&](const Var& var) { return
var_map.Get(var); });
});
- return IndexMap(initial_indices, final_indices);
+ Optional<IndexMap> opt_inverse_index_map =
+ Downcast<Optional<IndexMap>>(index_map->inverse_index_map);
+ if (opt_inverse_index_map.defined()) {
+ opt_inverse_index_map =
LegalizeIndexMapDType(opt_inverse_index_map.value(), final_indices);
Review Comment:
Can we guarantee that this recursive call would always bottom out?
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