Contributed to the llvm/circt repository by enhancing code quality in MLIR-based pattern matching and memory-reference handling using C++ and compiler design expertise. Focused on improving the clarity and efficiency of FIRRTLFolds by replacing generic rewrite patterns with typed OpRewritePattern, resulting in more maintainable and modular pattern rewrites. Addressed maintainability and safety concerns by eliminating global static state in FlattenMemRefs, introducing a local state object to manage unique names and symbol mappings. Localized state management within specific passes, reducing risks associated with global state and enabling safer, pass-local data handling for future refactoring and ongoing software architecture improvements.