[midend-llvmirprint]实现了大部分函数的print方法，TODO：需要完善func和module的print方法以及重命名的逻辑

src/include/midend/IR.h

@@ -83,6 +83,7 @@ class Type {
   auto as() const -> std::enable_if_t<std::is_base_of_v<Type, T>, T *> {
     return dynamic_cast<T *>(const_cast<Type *>(this));
   }
+  virtual void print(std::ostream& os) const;
 };
 
 class PointerType : public Type {
@@ -97,6 +98,7 @@ class PointerType : public Type {
 
  public:
   Type* getBaseType() const { return baseType; }  ///< 获取指向的类型
+  void print(std::ostream& os) const override;
 };
 
 class FunctionType : public Type {
@@ -116,6 +118,7 @@ class FunctionType : public Type {
   Type* getReturnType() const { return returnType; }          ///< 获取返回值类信息
   auto getParamTypes() const { return make_range(paramTypes); }        ///< 获取形参类型列表
   unsigned getNumParams() const { return paramTypes.size(); }  ///< 获取形参数量
+  void print(std::ostream& os) const override;
 };
 
 class ArrayType : public Type {
@@ -132,6 +135,7 @@ class ArrayType : public Type {
       : Type(Kind::kArray), elementType(elementType), numElements(numElements) {}
   Type *elementType;
   unsigned numElements; // 当前维度的大小
+  void print(std::ostream& os) const override;
 };
 
 /*!
@@ -206,6 +210,7 @@ class Use {
   User* getUser() const { return user; }       ///< 返回使用者
   Value* getValue() const { return value; }    ///< 返回被使用的值
   void setValue(Value *newValue) { value = newValue; }  ///< 将被使用的值设置为newValue
+  void print(std::ostream& os) const;
 };
 
 //! The base class of all value types
@@ -238,6 +243,7 @@ class Value {
     uses.remove(use); 
   }  ///< 删除使用关系use
   void removeAllUses();
+  virtual void print(std::ostream& os) const = 0;  ///< 输出值信息到输出流
 };
 
 /**
@@ -402,6 +408,7 @@ public:
 
   virtual bool isZero() const = 0;
   virtual bool isOne() const = 0;
+  void print(std::ostream& os) const = 0;
 };
 
 class ConstantInteger : public ConstantValue {
@@ -428,6 +435,7 @@ public:
 
   bool isZero() const override { return constVal == 0; }
   bool isOne() const override { return constVal == 1; }
+  void print(std::ostream& os) const;
 };
 
 class ConstantFloating : public ConstantValue {
@@ -454,6 +462,7 @@ public:
 
   bool isZero() const override { return constFVal == 0.0f; }
   bool isOne() const override { return constFVal == 1.0f; }
+  void print(std::ostream& os) const;
 };
 
 class UndefinedValue : public ConstantValue {
@@ -485,6 +494,7 @@ public:
 
   bool isZero() const override { return false; }
   bool isOne() const override { return false; }
+  void print(std::ostream& os) const;
 };
 
 // --- End of refactored ConstantValue and related classes ---
@@ -625,6 +635,7 @@ public:
     }
   }  ///< 移除指定位置的指令
   iterator moveInst(iterator sourcePos, iterator targetPos, BasicBlock *block);
+  void print(std::ostream& os) const; 
 };
 
 //! User is the abstract base type of `Value` types which use other `Value` as
@@ -736,57 +747,57 @@ public:
   std::string getKindString() const{
     switch (kind) {
       case kInvalid:
-        return "Invalid";
+        return "invalid";
       case kAdd:
-        return "Add";
+        return "add";
       case kSub:
-        return "Sub";
+        return "sub";
       case kMul:
-        return "Mul";
+        return "mul";
       case kDiv:
-        return "Div";
+        return "sdiv";
       case kRem:
-        return "Rem";
+        return "srem";
       case kICmpEQ:
-        return "ICmpEQ";
+        return "icmp eq";
       case kICmpNE:
-        return "ICmpNE";
+        return "icmp ne";
       case kICmpLT:
-        return "ICmpLT";
+        return "icmp slt";
       case kICmpGT:
-        return "ICmpGT";
+        return "icmp sgt";
       case kICmpLE:
-        return "ICmpLE";
+        return "icmp sle";
       case kICmpGE:
-        return "ICmpGE";
+        return "icmp sge";
       case kFAdd:
-        return "FAdd";
+        return "fadd";
       case kFSub:
-        return "FSub";
+        return "fsub";
       case kFMul:
-        return "FMul";
+        return "fmul";
       case kFDiv:
-        return "FDiv";
+        return "fdiv";
       case kFCmpEQ:
-        return "FCmpEQ";
+        return "fcmp oeq";
       case kFCmpNE:
-        return "FCmpNE";
+        return "fcmp one";
       case kFCmpLT:
-        return "FCmpLT";
+        return "fcmp olt";
       case kFCmpGT:
-        return "FCmpGT";
+        return "fcmp ogt";
       case kFCmpLE:
-        return "FCmpLE";
+        return "fcmp ole";
       case kFCmpGE:
-        return "FCmpGE";
+        return "fcmp oge";
       case kAnd:
-        return "And";
+        return "and";
       case kOr:
-        return "Or";
+        return "or";
       case kNeg:
-        return "Neg";
+        return "neg";
       case kNot:
-        return "Not";
+        return "not";
       case kFNeg:
         return "FNeg";
       case kFNot:
@@ -794,27 +805,29 @@ public:
       case kFtoI:
         return "FtoI";
       case kItoF:
-        return "IToF";
+        return "iToF";
       case kCall:
-        return "Call";
+        return "call";
       case kCondBr:
-        return "CondBr";
+        return "condBr";
       case kBr:
-        return "Br";
+        return "br";
       case kReturn:
-        return "Return";
+        return "return";
+      case kUnreachable:
+        return "unreachable";
       case kAlloca:
-        return "Alloca";
+        return "alloca";
       case kLoad:
-        return "Load";
+        return "load";
       case kStore:
-        return "Store";
+        return "store";
       case kGetElementPtr:
-        return "GetElementPtr";
+        return "getElementPtr";
       case kMemset:
-        return "Memset";
+        return "memset";
       case kPhi:
-        return "Phi";
+        return "phi";
       case kBitItoF:
         return "BitItoF";
       case kBitFtoI:
@@ -887,6 +900,7 @@ public:
     static constexpr uint64_t DefineOpMask = kAlloca | kStore | kPhi;
     return (kind & DefineOpMask) != 0U;
   } 
+  virtual void print(std::ostream& os) const = 0;
 }; // class Instruction
 
 class Function;
@@ -957,6 +971,7 @@ class PhiInst : public Instruction {
     }
   }  ///< 刷新块到值的映射关系
   auto getValues() { return make_range(std::next(operand_begin()), operand_end()); }
+  void print(std::ostream& os) const override;
 };
 
 
@@ -965,16 +980,20 @@ class CallInst : public Instruction {
   friend class IRBuilder;
 
 protected:
-  CallInst(Function *callee, const std::vector<Value *> &args = {},
-           BasicBlock *parent = nullptr, const std::string &name = "");
-
+  CallInst(Function *callee, const std::vector<Value *> &args, BasicBlock *parent = nullptr, const std::string &name = "")
+    : Instruction(kCall, callee->getReturnType(), parent, name) {
+    addOperand(callee);
+    for (auto arg : args) {
+      addOperand(arg);
+    }
+  }
 
 public:
-  Function* getCallee() const;
+  Function *getCallee() const { return dynamic_cast<Function *>(getOperand(0)); }
   auto getArguments() const {
     return make_range(std::next(operand_begin()), operand_end());
   }
-
+  void print(std::ostream& os) const override;
 }; // class CallInst
 
 //! Unary instruction, includes '!', '-' and type conversion.
@@ -992,7 +1011,7 @@ protected:
 
 public:
   Value* getOperand() const { return User::getOperand(0); }
-
+  void print(std::ostream& os) const override;
 }; // class UnaryInst
 
 //! Binary instruction, e.g., arithmatic, relation, logic, etc.
@@ -1071,6 +1090,7 @@ public:
         // 后端处理数组访存操作时需要创建计算地址的指令，需要在外部构造 BinaryInst 对象
         return new BinaryInst(kind, type, lhs, rhs, parent, name);
   }
+  void print(std::ostream& os) const override;
 }; // class BinaryInst
 
 //! The return statement
@@ -1091,6 +1111,7 @@ class ReturnInst : public Instruction {
   Value* getReturnValue() const {
     return hasReturnValue() ? getOperand(0) : nullptr;
   }
+  void print(std::ostream& os) const override;
 };
 
 //! Unconditional branch
@@ -1120,7 +1141,7 @@ public:
     }
     return succs;
   }
-
+  void print(std::ostream& os) const override;
 }; // class UncondBrInst
 
 //! Conditional branch
@@ -1160,7 +1181,7 @@ public:
     }
     return succs;
   }
-
+  void print(std::ostream& os) const override;
 }; // class CondBrInst
 
 class UnreachableInst : public Instruction {
@@ -1168,7 +1189,7 @@ public:
   // 构造函数：设置指令类型为 kUnreachable
   explicit UnreachableInst(const std::string& name, BasicBlock *parent = nullptr)
       : Instruction(kUnreachable, Type::getVoidType(), parent, "") {}
-
+  void print(std::ostream& os) const { os << "unreachable"; }
 };
 
 //! Allocate memory for stack variables, used for non-global variable declartion
@@ -1186,7 +1207,7 @@ public:
   Type* getAllocatedType() const {
     return getType()->as<PointerType>()->getBaseType();
   }  ///< 获取分配的类型
-
+  void print(std::ostream& os) const override;
 }; // class AllocaInst
 
 
@@ -1224,6 +1245,7 @@ public:
                                     BasicBlock *parent = nullptr, const std::string &name = "") {
     return new GetElementPtrInst(resultType, basePointer, indices, parent, name);
   }
+  void print(std::ostream& os) const override;
 };
 
 //! Load a value from memory address specified by a pointer value
@@ -1241,7 +1263,7 @@ protected:
 
 public:
   Value* getPointer() const { return getOperand(0); }
-  
+  void print(std::ostream& os) const override;
 }; // class LoadInst
 
 //! Store a value to memory address specified by a pointer value
@@ -1260,7 +1282,7 @@ protected:
 public:
   Value* getValue() const { return getOperand(0); }
   Value* getPointer() const { return getOperand(1); }
-
+  void print(std::ostream& os) const override;
 }; // class StoreInst
 
 //! Memset instruction
@@ -1290,7 +1312,7 @@ public:
   Value* getBegin() const { return getOperand(1); }
   Value* getSize() const { return getOperand(2); }
   Value* getValue() const { return getOperand(3); }
-
+  void print(std::ostream& os) const override;
 };
 
 class GlobalValue;
@@ -1308,6 +1330,7 @@ public:
 public:
   Function* getParent() const { return func; }
   int getIndex() const { return index; }
+  void print(std::ostream& os) const;
 };
 
 
@@ -1385,6 +1408,7 @@ protected:
     blocks.emplace_front(block);
     return block;
   }
+  void print(std::ostream& os) const;
 };
 
 //! Global value declared at file scope
@@ -1450,6 +1474,7 @@ public:
     return getByIndex(index);
   }  ///< 通过多维索引indices获取初始值
   const ValueCounter& getInitValues() const { return initValues; } 
+  void print(std::ostream& os) const;
 }; // class GlobalValue
 
 
@@ -1507,6 +1532,8 @@ class ConstantVariable : public Value {
     return getByIndex(index);
   }                                                        ///< 通过多维索引indices获取初始值
   const ValueCounter& getInitValues() const { return initValues; }                           ///< 获取初始值
+  void print(std::ostream& os) const;
+  void print_init(std::ostream& os) const;
 };
 
 using SymbolTableNode = struct SymbolTableNode {
@@ -1620,6 +1647,8 @@ class Module {
   void leaveScope() { variableTable.leaveScope(); }  ///< 离开作用域
 
   bool isInGlobalArea() const { return variableTable.isInGlobalScope(); }  ///< 是否位于全局作用域
+
+  void print(std::ostream& os) const;
 };
 
 /*!