diff --git a/src/mapleall/maple_be/src/be/lower.cpp b/src/mapleall/maple_be/src/be/lower.cpp
index f0b30ee7d0f640559860b695d40c613ffa44fd70..d457a8bc167ca7470f347bef4fe103de475c3407 100644
--- a/src/mapleall/maple_be/src/be/lower.cpp
+++ b/src/mapleall/maple_be/src/be/lower.cpp
@@ -1304,9 +1304,16 @@ bool CGLowerer::LowerStructReturn(BlockNode &newBlk, StmtNode *stmt, StmtNode *n
                           regassign u64 %1 (regread u64 %%retval0)
                           regassign ptr %2 (addrof ptr $s)
                           iassign <* u64> 0 (regread ptr %2, regread u64 %1) */
+                if (CGOptions::GetInstance().GetOptimizeLevel() == CGOptions::kLevel0) {
+                  return false;
+                }
                 MIRSymbol *symbol = mirModule.CurFunction()->GetLocalOrGlobalSymbol(dnode_stmt->GetStIdx());
                 MIRStructType *structType = static_cast<MIRStructType*>(symbol->GetType());
                 int32 size = structType->GetSize();
+                for (size_t i = 0; i < callnode->GetNopndSize(); ++i) {
+                  BaseNode *newOpnd = LowerExpr(*callnode, *callnode->GetNopndAt(i), newBlk);
+                  callnode->SetOpnd(newOpnd, i);
+                }
                 CallNode *callStmt = mirModule.GetMIRBuilder()->CreateStmtCall(
                   callnode->GetPUIdx(), callnode->GetNopnd());
                 newBlk.AddStatement(callStmt);