[midend]重构了src目录

src/include/backend/RISCv64/Optimize/PostRA_Scheduler.h

@@ -0,0 +1,30 @@
+#ifndef POST_RA_SCHEDULER_H
+#define POST_RA_SCHEDULER_H
+
+#include "RISCv64LLIR.h"
+#include "Pass.h"
+
+namespace sysy {
+
+/**
+ * @class PostRA_Scheduler
+ * @brief 寄存器分配后的局部指令调度器
+ * * 主要目标是优化寄存器分配器插入的spill/fill代码(lw/sw)，
+ * 尝试将加载指令提前，以隐藏其访存延迟。
+ */
+class PostRA_Scheduler : public Pass {
+public:
+    static char ID;
+    
+    PostRA_Scheduler() : Pass("post-ra-scheduler", Granularity::Function, PassKind::Optimization) {}
+    
+    void *getPassID() const override { return &ID; }
+    
+    bool runOnFunction(Function *F, AnalysisManager& AM) override;
+    
+    void runOnMachineFunction(MachineFunction* mfunc);
+};
+
+} // namespace sysy
+
+#endif // POST_RA_SCHEDULER_H