diff --git a/src/mapleall/maple_be/src/cg/cg_phasemanager.cpp b/src/mapleall/maple_be/src/cg/cg_phasemanager.cpp
index 47660be46c3075e88a8a3196531b2f1a1b6f322d..667003acce00c6d572ae1ef20390a11591418b01 100644
--- a/src/mapleall/maple_be/src/cg/cg_phasemanager.cpp
+++ b/src/mapleall/maple_be/src/cg/cg_phasemanager.cpp
@@ -107,6 +107,7 @@ void CgFuncPM::PostOutPut(MIRModule &m) {
 }
 
 void MarkUsedStaticSymbol(const StIdx &symbolIdx);
+std::map<StIdx, bool> visitedSym;
 
 void CollectStaticSymbolInVar(MIRConst *mirConst) {
   if (mirConst->GetKind() == kConstAddrof) {
@@ -128,6 +129,11 @@ void MarkUsedStaticSymbol(const StIdx &symbolIdx) {
   if (symbol == nullptr) {
     return;
   }
+  if (visitedSym[symbolIdx]) {
+    return;
+  } else {
+    visitedSym[symbolIdx] = true;
+  }
   symbol->ResetIsDeleted();
   if (symbol->IsConst()) {
     auto *konst = symbol->GetKonst();
@@ -185,6 +191,7 @@ void CgFuncPM::SweepUnusedStaticSymbol(MIRModule &m) {
     }
   }
 
+  visitedSym.clear();
   /* scan all funtions  */
   std::vector<MIRFunction*> &funcTable = GlobalTables::GetFunctionTable().GetFuncTable();
   /* don't optimize this loop to iterator or range-base loop