[GitHub] [incubator-tvm] icemelon9 commented on a change in pull request #4334: [Relay][Pass] Add pass to remove unused functions in relay module

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icemelon9 commented on a change in pull request #4334: [Relay][Pass] Add pass to remove unused functions in relay module
URL: https://github.com/apache/incubator-tvm/pull/4334#discussion_r346537041
 
 

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 File path: src/relay/backend/vm/compiler.cc
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 @@ -863,6 +864,8 @@ void VMCompiler::Compile(Module mod,
 
 Module VMCompiler::OptimizeModule(const Module& mod, const TargetsMap& targets) {
   Array<Pass> pass_seqs;
+  Array<tvm::Expr> entry_functions{tvm::Expr{"main"}};
+  pass_seqs.push_back(transform::RemoveUnusedFunctions(entry_functions));
 
 Review comment:
   I wonder if we should run this pass at the end of optimization. For example, some lambda lifted functions will be no longer used after they are inlined.

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