multiverstack-intellif commented on code in PR #12939:
URL: https://github.com/apache/tvm/pull/12939#discussion_r985033912
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src/tir/schedule/primitive/cache_read_write.cc:
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@@ -563,8 +649,17 @@ class CacheReadRewriter : public StmtExprMutator {
if (block == scope_sref_->stmt) {
// If so, put buffer allocation on the parent scope
ObjectPtr<BlockNode> n = make_object<BlockNode>(*stmt.as<BlockNode>());
- n->alloc_buffers.push_back(info_->alloc);
- stmt = Block(n);
+ bool alloc_buffer_exists = false;
+ for (const Buffer& it : n->alloc_buffers) {
+ if (it.same_as(info_->alloc)) {
+ alloc_buffer_exists = true;
+ }
+ }
+ // In cache_buffer case, alloc_buffer may be already exits.
Review Comment:
good idea!
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