[fix]修复部分常量构建，[Pass]建立Pass基类和管理器，预重构优化遍结构

src/include/SysYIRPassManager.h

@@ -0,0 +1,58 @@
+// PassManager.h
+#pragma once
+
+#include <vector>
+#include <memory>
+#include <typeindex> // For std::type_index
+#include <unordered_map>
+#include "SysYIRPass.h"
+#include "IR.h" // 假设你的IR.h定义了Module, Function等
+
+namespace sysy {
+
+class PassManager {
+public:
+	PassManager() = default;
+
+	// 添加一个FunctionPass
+	void addPass(std::unique_ptr<FunctionPass> pass) {
+		functionPasses.push_back(std::move(pass));
+	}
+
+	// 添加一个ModulePass
+	void addPass(std::unique_ptr<ModulePass> pass) {
+		modulePasses.push_back(std::move(pass));
+	}
+
+	// 添加一个AnalysisPass
+	template<typename T, typename... Args>
+	T* addAnalysisPass(Args&&... args) {
+		static_assert(std::is_base_of<AnalysisPass, T>::value, "T must derive from AnalysisPass");
+		auto analysis = std::make_unique<T>(std::forward<Args>(args)...);
+		T* rawPtr = analysis.get();
+		analysisPasses[std::type_index(typeid(T))] = std::move(analysis);
+		return rawPtr;
+	}
+
+	// 获取分析结果（用于其他Pass访问）
+	template<typename T>
+	T* getAnalysis() {
+		static_assert(std::is_base_of<AnalysisPass, T>::value, "T must derive from AnalysisPass");
+		auto it = analysisPasses.find(std::type_index(typeid(T)));
+		if (it != analysisPasses.end()) {
+			return static_cast<T*>(it->second.get());
+		}
+		return nullptr; // 或者抛出异常
+	}
+
+	// 运行所有注册的遍
+	void run(Module& M);
+
+private:
+	std::vector<std::unique_ptr<FunctionPass>> functionPasses;
+	std::vector<std::unique_ptr<ModulePass>> modulePasses;
+	std::unordered_map<std::type_index, std::unique_ptr<AnalysisPass>> analysisPasses;
+	// 未来可以添加AnalysisPass的缓存机制
+};
+
+} // namespace sysy