diff --git a/src/midend/Pass/Pass.cpp b/src/midend/Pass/Pass.cpp
index a077645..ba258d1 100644
--- a/src/midend/Pass/Pass.cpp
+++ b/src/midend/Pass/Pass.cpp
@@ -133,9 +133,9 @@ void PassManager::runOptimizationPipeline(Module* moduleIR, IRBuilder* builderIR
         printPasses();
       }
 
-      this->clearPasses();
-      this->addPass(&GVN::ID);
-      this->run();
+      // this->clearPasses();
+      // this->addPass(&GVN::ID);
+      // this->run();
 
       this->clearPasses();
       this->addPass(&TailCallOpt::ID);
@@ -152,9 +152,9 @@ void PassManager::runOptimizationPipeline(Module* moduleIR, IRBuilder* builderIR
         printPasses();
       }
 
-      this->clearPasses();
-      this->addPass(&SCCP::ID);
-      this->run();
+      // this->clearPasses();
+      // this->addPass(&SCCP::ID);
+      // this->run();
 
       if(DEBUG) {
         std::cout << "=== IR After SCCP Optimizations ===\n";
@@ -190,10 +190,10 @@ void PassManager::runOptimizationPipeline(Module* moduleIR, IRBuilder* builderIR
         printPasses();
       }
 
-      // 全局强度削弱优化，包括代数优化和魔数除法
-      this->clearPasses();
-      this->addPass(&GlobalStrengthReduction::ID);
-      this->run();
+      // // 全局强度削弱优化，包括代数优化和魔数除法
+      // this->clearPasses();
+      // this->addPass(&GlobalStrengthReduction::ID);
+      // this->run();
 
       if(DEBUG) {
         std::cout << "=== IR After Global Strength Reduction Optimizations ===\n";