Worked on the ferrocene/ferrocene repository to enhance verification and test coverage for SIMD intrinsics in the Rust standard library, focusing on the _mm_comige_ss and _mm_comigt_ss functions. Addressed correctness by adding a missing runtime test and updating the skip-list to reflect the new validity of _mm_comige_ss, thereby improving reliability in performance-critical code paths. Applied skills in performance optimization, system programming, and testing, all within the Rust language. The work strengthened validation processes for SIMD intrinsics, reducing the risk of regressions and supporting business value through improved test coverage and alignment with evolving library requirements.