准备添加global_value_number

src/passes/global_value_numbering.cpp

+#include "global_value_numbering.h"
\ No newline at end of file

src/passes/global_value_numbering.h

+#ifndef COMPILER_GLOBAL_VALUE_NUMBERING_H
+#define COMPILER_GLOBAL_VALUE_NUMBERING_H
+
+#include "ir/constant.h"
+#include "ir/instruction.h"
+#include "pass.h"
+
+class Function;
+class BinaryInst;
+class ConstantFold : public Transform {
+public:
+    ConstantFold(Module* m,const std::string &name): Transform(m,name){}
+    void run() override;
+    void constantFold(Function* f);
+    Constant* calConstantIntBinary(Instruction* pInstruction);
+    Constant* calConstantFloatBinary(Instruction* instr);
+
+private:
+//    Function* _cur_fun;
+    bool detectBinaryConstantFold(BinaryInst* inst);
+    bool detectCastConstantFold(UnaryInst* pInst);
+    bool detectCmpConstantFold(CmpInst* pInst);
+};
+
+#endif //COMPILER_GLOBAL_VALUE_NUMBERING_H