[GitHub] [incubator-tvm] yzhliu commented on a change in pull request #4886: [WIP][POC]First pass a defining at non-recursive Graph Vistor and Rewriter

[GitBox]

yzhliu commented on a change in pull request #4886: [WIP][POC]First pass a 
defining at non-recursive Graph Vistor and Rewriter
URL: https://github.com/apache/incubator-tvm/pull/4886#discussion_r394726756
 
 

 ##########
 File path: src/relay/analysis/util.cc
 ##########
 @@ -330,12 +330,15 @@ TVM_REGISTER_GLOBAL("relay.analysis.all_type_vars")
  */
 std::unordered_map<const Object*, size_t>
 GetExprRefCount(const Expr& body) {
-  class ExprRefCounter : private ExprVisitor {
+  class ExprRefCounter : private DataflowVisitor {
    public:
     std::unordered_map<const Object*, size_t>
     Get(const Expr& body) {
       this->VisitExpr(body);
-      return std::move(this->visit_counter_);
+      for (auto kv : visit_counter_) {
+        std::cout << kv.first << '\t' << kv.second << std::endl;
+      }
 
 Review comment:
   remember to remove debug code.

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