Worked on maintenance and build stability for the espressif/llvm-project repository, focusing on the MLIR Vector dialect. Addressed noisy compiler warnings by applying the C++ [[maybe_unused]] attribute to variables used only in assertions within VectorEmulateNarrowType.cpp, ensuring that unused-variable warnings are suppressed when assertions are disabled with -NDEBUG. This targeted fix reduced CI noise and mitigated warn-as-errors risks, streamlining nightly builds and improving developer feedback cycles. Leveraged expertise in C++, compiler development, and MLIR to deliver a low-risk, easily reversible change that maintained code quality and enabled faster iteration on MLIR Vector features without introducing new features.