Worked on improving debugging reliability in the NVIDIA/numba-cuda repository by addressing an issue with GridGroup debug information in CUDA code paths. Focused on compiler development and debugging, the work involved mapping the GridGroup type to a 64-bit integer representation using LLVM’s ir.IntType(64) and assigning the DW_ATE_unsigned encoding. This technical approach ensures that debug information is accurate and consistent, which streamlines diagnosing issues in GPU kernels. The solution was implemented in Python and included a regression test to verify the fix, contributing to better tooling integration and enhanced test coverage for CUDA development workflows within the project.