[midend]增加了指令重命名逻辑。

src/include/midend/IR.h

@@ -98,7 +98,6 @@ 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 {
@@ -118,7 +117,6 @@ 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 {
@@ -135,7 +133,6 @@ 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;
 };
 
 /*!
@@ -980,16 +977,10 @@ class CallInst : public Instruction {
   friend class IRBuilder;
 
 protected:
-  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);
-    }
-  }
+  CallInst(Function *callee, const std::vector<Value *> &args, BasicBlock *parent = nullptr, const std::string &name = "");
 
 public:
-  Function *getCallee() const { return dynamic_cast<Function *>(getOperand(0)); }
+  Function *getCallee() const;
   auto getArguments() const {
     return make_range(std::next(operand_begin()), operand_end());
   }