junrushao1994 commented on a change in pull request #8693:
URL: https://github.com/apache/tvm/pull/8693#discussion_r686485786
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File path: src/tir/transforms/compact_buffer_region.cc
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@@ -303,28 +303,82 @@ class BufferAccessRegionCollector : public
StmtExprVisitor {
support::Arena arena_;
};
+/*! \brief Collect storage alignment information from block annotations. */
+class StorageAlignCollector : public StmtVisitor {
+ public:
+ static std::unordered_map<Buffer, Array<Array<Integer>>, ObjectPtrHash,
ObjectPtrEqual> Collect(
+ const PrimFunc& f) {
+ StorageAlignCollector collector;
+ collector(f->body);
+ return std::move(collector.storage_align_);
+ }
+
+ private:
+ void VisitStmt_(const BlockNode* op) final {
+ auto it = op->annotations.find(attr::buffer_dim_align);
+ if (it != op->annotations.end()) {
+ const auto& storage_align =
Downcast<Array<Array<Array<Integer>>>>((*it).second);
Review comment:
We don't need the const ref here
```suggestion
auto storage_align =
Downcast<Array<Array<Array<Integer>>>>((*it).second);
```
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