fixed bugs brought out by merging

src/sysyc.cpp

@@ -74,8 +74,8 @@ int main(int argc, char **argv) {
   SysYIRGenerator generator;
   generator.visitCompUnit(moduleAST);
   if (argStopAfter == "ir") {
-      auto module = generator.get();
-      module->print(cout);
+      // auto module = generator.get();
+      // module->print(cout);
       return EXIT_SUCCESS;
   }
 
@@ -83,7 +83,6 @@ int main(int argc, char **argv) {
   auto module = generator.get();
   sysy::RISCv32CodeGen codegen(module);
   string asmCode = codegen.code_gen();
-  cout << asmCode << endl;
   if (argStopAfter == "asm") {
     cout << asmCode << endl;
     return EXIT_SUCCESS;