[midend]增加全局强度削弱优化遍

src/midend/CMakeLists.txt

@@ -22,6 +22,7 @@ add_library(midend_lib STATIC
     Pass/Optimize/LICM.cpp
     Pass/Optimize/LoopStrengthReduction.cpp
     Pass/Optimize/InductionVariableElimination.cpp
+    Pass/Optimize/GlobalStrengthReduction.cpp
     Pass/Optimize/BuildCFG.cpp
     Pass/Optimize/LargeArrayToGlobal.cpp
 )

src/midend/Pass/Pass.cpp

@@ -18,6 +18,7 @@
 #include "LICM.h"
 #include "LoopStrengthReduction.h"
 #include "InductionVariableElimination.h"
+#include "GlobalStrengthReduction.h"
 #include "Pass.h"
 #include <iostream>
 #include <queue>
@@ -179,6 +180,16 @@ 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();
+
+      if(DEBUG) {
+        std::cout << "=== IR After Global Strength Reduction Optimizations ===\n";
+        printPasses();
+      }
+
       // this->clearPasses();
       // this->addPass(&Reg2Mem::ID);
       // this->run();