833 static std::unique_ptr<DIBuilder> DBuilder;  variable
839   DblTy = DBuilder->createBasicType("double", 64, dwarf::DW_ATE_float);  in getDoubleTy()
865   return DBuilder->createSubroutineType(DBuilder->getOrCreateTypeArray(EltTys));  in CreateFunctionType()
1249   DIFile *Unit = DBuilder->createFile(KSDbgInfo.TheCU->getFilename(),  in codegen()
1254   DISubprogram *SP = DBuilder->createFunction(  in codegen()
1276     DILocalVariable *D = DBuilder->createParameterVariable(  in codegen()
1280     DBuilder->insertDeclare(Alloca, D, DBuilder->createExpression(),  in codegen()
1443   DBuilder = std::make_unique<DIBuilder>(*TheModule);  in main()
1448   KSDbgInfo.TheCU = DBuilder->createCompileUnit(  in main()
1449       dwarf::DW_LANG_C, DBuilder->createFile("fib.ks", "."),  in main()
1456   DBuilder->finalize();  in main()