[GitHub] [tvm] masahi commented on a diff in pull request #11088: [Metaschedule] Auto tensorization for CPU / GPU dot product

[GitBox <gi...@apache.org>]

masahi commented on code in PR #11088:
URL: https://github.com/apache/tvm/pull/11088#discussion_r855099107


##########
src/meta_schedule/postproc/rewrite_tensorize.cc:
##########
@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+#include <tvm/runtime/container/base.h>
+
+#include <algorithm>
+
+#include "../utils.h"
+
+namespace tvm {
+namespace meta_schedule {
+
+using tir::BlockRV;
+using tir::LoopRV;
+
+void ApplyTensorization(const tir::Schedule& sch, const String& func_name,
+                        const tir::PrimFuncNode* func, bool vectorize_init_loop) {
+  std::vector<std::pair<std::string, std::function<void(tir::BlockRV)>>> jobs;
+
+  tir::PostOrderVisit(func->body, [=, &jobs](const ObjectRef& obj) {
+    if (const auto* block = obj.as<tir::BlockNode>()) {
+      tir::StmtSRef block_sref = sch->GetSRef(block);
+      if (Optional<String> intrin_name =
+              tir::GetAnn<String>(block_sref, tir::attr::meta_schedule_auto_tensorize)) {
+        std::string block_name = block_sref->StmtAs<tir::BlockNode>()->name_hint;
+        if (block_name.find("init") == std::string::npos) {

Review Comment:
   `DecomposeReduction` applied before this postproc copies `meta_schedule_auto_tensorize` attributes to the init block as well. So we need to make sure that we won't try to tensorize a block even if it has `meta_schedule_auto_tensorize` annotation.



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