masahi commented on a change in pull request #5310: [BYOC] Enhance partitioning
and external codegen
URL: https://github.com/apache/incubator-tvm/pull/5310#discussion_r407127503
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File path: src/relay/backend/contrib/dnnl/codegen.cc
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@@ -128,42 +128,50 @@ std::vector<std::string> Add(const CallNode* call) {
// TODO(@zhiics, @comaniac): This is a basic implementation. We should
implement
// all utilities and make a base class for users to implement.
-class CodegenDNNL : public ExprVisitor, public CodegenCBase {
+class CodegenDNNL : public relay::ExprFunctor<std::vector<Output>(const
Expr&)>,
+ public CodegenCBase {
public:
explicit CodegenDNNL(const std::string& id) { this->ext_func_id_ = id; }
- void VisitExpr_(const VarNode* node) final {
+ std::vector<Output> VisitExpr(const Expr& expr) final {
+ if (visited_.count(expr)) return visited_.at(expr);
Review comment:
Well it is not necessary, but it would be nice if we could add memo there.
We don't have to add this overide in `CodegenDNN` and we can remove many duped
logic in other derived classes.
But since that would be a big change, I agree that we should proceed with
this impl for now.
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