[GitHub] [incubator-tvm] zhiics commented on a change in pull request #4389: [fix][pass] Save the function when it is used as a call arg

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zhiics commented on a change in pull request #4389: [fix][pass] Save the function when it is used as a call arg
URL: https://github.com/apache/incubator-tvm/pull/4389#discussion_r348799163
 
 

 ##########
 File path: src/relay/backend/vm/removed_unused_funcs.cc
 ##########
 @@ -76,6 +72,15 @@ struct CallTracer : ExprVisitor {
       }
       visiting_.insert(func);
       VisitExpr(func);
+    } else {
+      VisitExpr(expr);
+    }
+  }
+
+  void VisitExpr_(const CallNode* call_node) final {
+    CheckExpr(call_node->op);
+    for (auto param : call_node->args) {
+      CheckExpr(param);
     }
 
 Review comment:
   Yes, it could be. I just moved it out to make it look more clear. How do you think?

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