Worked on the ROCm/llvm-project repository to improve the reliability of C and C++ list-initialization analysis by addressing issues with the -Wdouble-promotion warning in Clang’s Sema phase. The approach involved refining the static analysis of implicit conversions, ensuring that explicit casts were properly ignored during double-promotion evaluation. Comprehensive regression tests were added for both C and C++ scenarios to validate the fix and prevent future regressions. This work, utilizing skills in compiler development, static analysis, and testing, contributed to enhanced code correctness and reduced warning noise for downstream projects relying on ROCm LLVM tooling in production environments.