Worked on stabilizing builds and enhancing developer understanding within the Xilinx/llvm-project and Xilinx/llvm-aie repositories. Addressed a compilation issue in C++ by updating the DEBUG_WITH_TYPE macro to support variadic arguments, resolving template instantiation errors for types like SmallMapVector and adding a regression test to ensure reliability. Complemented this technical fix with detailed documentation in RST, clarifying the handling of ByVal and Swift Error parameter attributes during coroutine lowering in LLVM. Leveraged skills in macro programming, debugging tools, and documentation to improve build stability, streamline onboarding, and reduce post-merge issues across related LLVM projects during the development period.