[midend-LoopAnalysis]修复循环规范遍bug，修正部分打印格式，

src/include/midend/IR.h

@@ -1431,14 +1431,14 @@ protected:
     auto it = std::find_if(blocks.begin(), blocks.end(),
                            [before](const std::unique_ptr<BasicBlock> &ptr) { return ptr.get() == before; });
     if (it != blocks.end()) {
-      blocks.emplace(it, new BasicBlock(this, name));
-      return it->get();  // 返回新添加的基本块指针
+      auto newblk = blocks.emplace(it, std::make_unique<BasicBlock>(this, name));
+      return newblk->get();  // 返回新添加的基本块指针
     }
     assert(false && "BasicBlock to insert before not found!"); 
     return nullptr;  // 如果没有找到指定的基本块，则返回nullptr
   }  ///< 添加一个新的基本块到某个基本块之前
   BasicBlock* addBasicBlock(const std::string &name = "") {
-    blocks.emplace_back(new BasicBlock(this, name));
+    blocks.emplace_back(std::make_unique<BasicBlock>(this, name));
     return blocks.back().get();
   }
   BasicBlock* addBasicBlock(BasicBlock *block) {

src/include/midend/Pass/Optimize/LoopNormalization.h

@@ -104,7 +104,7 @@ private:
    * @param preheader 新创建的前置块
    * @param header 循环头部
    */
-  void redirectExternalPredecessors(Loop* loop, BasicBlock* preheader, BasicBlock* header);
+  void redirectExternalPredecessors(Loop* loop, BasicBlock* preheader, BasicBlock* header, const std::vector<BasicBlock*>& externalPreds);
   
   /**
    * 为前置块生成合适的名称