[midend]通过编译，TODO：验证正确性

src/CMakeLists.txt

@@ -22,7 +22,9 @@ add_executable(sysyc
   SysYIRGenerator.cpp
   SysYIRPrinter.cpp
   SysYIRCFGOpt.cpp
-  # SysYIRAnalyser.cpp
+  Pass.cpp
+  Dom.cpp
+  Liveness.cpp
   # DeadCodeElimination.cpp
   AddressCalculationExpansion.cpp
   # Mem2Reg.cpp

src/Dom.cpp

@@ -165,7 +165,7 @@ void DominatorTree::computeDominanceFrontiers(Function *F) {
 // ==============================================================
 
 
-bool DominatorTreeAnalysisPass::runOnFunction(Function* F) {
+bool DominatorTreeAnalysisPass::runOnFunction(Function* F, AnalysisManager &AM) {
   CurrentDominatorTree = std::make_unique<DominatorTree>(F);
   CurrentDominatorTree->computeDominators(F);
   CurrentDominatorTree->computeIDoms(F);

src/Liveness.cpp

@@ -89,12 +89,19 @@ void LivenessAnalysisResult::computeLiveness(Function *F) {
     // TODO : 目前为逆序遍历基本块，考虑反向拓扑序遍历基本块
 
     // 逆序遍历基本块
-    std::list<std::unique_ptr<BasicBlock>> basicBlocks(F->getBasicBlocks().begin(), F->getBasicBlocks().end());
-    std::reverse(basicBlocks.begin(), basicBlocks.end());
+    // std::list<std::unique_ptr<BasicBlock>> basicBlocks(F->getBasicBlocks().begin(), F->getBasicBlocks().end());
+    // std::reverse(basicBlocks.begin(), basicBlocks.end());
     // 然后遍历 basicBlocks
+    // 创建一个 BasicBlock* 的列表来存储指针，避免拷贝 unique_ptr
+    // Option 1: Using std::vector<BasicBlock*> (preferred for performance with reverse)
+    std::vector<BasicBlock*> basicBlocksPointers;
+    for (const auto& bb_ptr : F->getBasicBlocks()) {
+        basicBlocksPointers.push_back(bb_ptr.get());
+    }
+    std::reverse(basicBlocksPointers.begin(), basicBlocksPointers.end());
 
-    for (auto bb_iter = basicBlocks.begin(); bb_iter != basicBlocks.end(); ++bb_iter) {
-      BasicBlock *bb = bb_iter->get();
+    for (auto bb_iter = basicBlocksPointers.begin(); bb_iter != basicBlocksPointers.end(); ++bb_iter) {
+      BasicBlock *bb = *bb_iter; // 获取 BasicBlock 指针
       if (!bb)
         continue; // 避免空指针
 

src/Pass.cpp

@@ -11,9 +11,8 @@
 #include "Dom.h"
 #include "Liveness.h"
 
-namespace sysy {
-
 extern int DEBUG; // 全局调试标志
+namespace sysy {
 
 // ======================================================================
 // 封装优化流程的函数：包含Pass注册和迭代运行逻辑
@@ -32,6 +31,8 @@ void PassManager::runOptimizationPipeline(Module* moduleIR, int optLevel) {
     sysy::PassManager pm(moduleIR);
 
     // 3. 根据优化级别添加不同的优化遍
+    // TODO : 根据 optLevel 添加不同的优化遍
+    //        讨论 是不动点迭代进行优化遍还是手动客制化优化遍的顺序？
     if (optLevel >= 1) {
         if (DEBUG) std::cout << "Applying -O1 optimizations.\n";
 

src/include/Liveness.h

@@ -19,8 +19,7 @@ class Instruction;
 // 它将包含 LiveIn 和 LiveOut 集合
 class LivenessAnalysisResult : public AnalysisResultBase {
 public:
-  LivenessAnalysisResult(Function *F); // 构造函数，需要一个函数来关联结果
-  LivenessAnalysisResult::LivenessAnalysisResult(Function *F) : AssociatedFunction(F) {}
+  LivenessAnalysisResult(Function *F) : AssociatedFunction(F) {}
   
   // 获取给定基本块的 LiveIn 集合
   const std::set<Value *> *getLiveIn(BasicBlock *BB) const;

src/include/Pass.h

@@ -7,9 +7,14 @@
 #include <string>
 #include <typeindex> // For std::type_index (although void* ID is more common in LLVM)
 #include <vector>
+#include "IR.h"
 
 namespace sysy {
 
+//前向声明
+class PassManager;
+class AnalysisManager;
+
 // 抽象基类：分析结果
 class AnalysisResultBase {
 public:
@@ -144,7 +149,7 @@ public:
 
     // 确保分析遍的粒度与请求的上下文匹配
     if (analysisPass->getGranularity() == Pass::Granularity::Function) {
-      analysisPass->runOnFunction(F); // 运行分析遍
+      analysisPass->runOnFunction(F, *this); // 运行分析遍
       // 获取结果并缓存
       std::unique_ptr<AnalysisResultBase> result = analysisPass->getResult();
       T *specificResult = static_cast<T *>(result.get());
@@ -166,13 +171,14 @@ public:
       cachedResults.erase({F, analysisID});
     } else {
       // 使所有函数的特定分析结果失效
-      std::map<std::pair<Function *, void *>, std::unique_ptr<AnalysisResultBase>> newCachedResults;
-      for (auto &pair : cachedResults) {
-        if (pair.first.second != analysisID) {
-          newCachedResults.insert(std::move(pair));
+      // 遍历并删除匹配的元素，避免拷贝 unique_ptr
+      for (auto it = cachedResults.begin(); it != cachedResults.end(); ) {
+        if (it->first.second == analysisID) {
+          it = cachedResults.erase(it); // erase 返回下一个元素的迭代器
+        } else {
+          ++it;
         }
       }
-      cachedResults = std::move(newCachedResults);
     }
   }
 };
@@ -190,9 +196,7 @@ public:
   PassManager() = default;
   ~PassManager() = default;
 
-  PassManager(Module *module) : pmodule(module) {
-    analysisManager = AnalysisManager(); // 初始化分析管理器
-  }
+  PassManager(Module *module) : pmodule(module) , analysisManager() {}
   
   // 运行所有注册的遍
   bool run();