[midend]重构了src目录

src/include/backend/RISCv64/RISCv64AsmPrinter.h

@@ -0,0 +1,36 @@
+#ifndef RISCV64_ASMPRINTER_H
+#define RISCV64_ASMPRINTER_H
+
+#include "RISCv64LLIR.h"
+#include <iostream>
+
+extern int DEBUG;
+extern int DEEPDEBUG;
+
+namespace sysy {
+
+class RISCv64AsmPrinter {
+public:
+    RISCv64AsmPrinter(MachineFunction* mfunc);
+    
+    // 主入口
+    void run(std::ostream& os, bool debug = false);
+    void printInstruction(MachineInstr* instr, bool debug = false);
+    // 辅助函数
+    void setStream(std::ostream& os) { OS = &os; }
+private:
+    // 打印各个部分
+    void printBasicBlock(MachineBasicBlock* mbb, bool debug = false);
+
+    // 辅助函数
+    std::string regToString(PhysicalReg reg);
+    void printOperand(MachineOperand* op);
+
+    MachineFunction* MFunc;
+    std::ostream* OS = nullptr;
+
+};
+
+} // namespace sysy
+
+#endif // RISCV64_ASMPRINTER_H