Worked on cross-repository improvements to floating-point constant handling in Rust, focusing on the rust-lang/compiler-builtins, rust-lang/rust, and rust-lang/miri repositories. Implemented and enabled the float_bits_const feature, introducing standardized BITS constants for floating types and ensuring compatibility with the Float extension trait. Updated Miri tests to explicitly use the Float trait BITS, which reduced warnings and improved type safety. These changes enhanced consistency across repositories, reduced technical debt, and prepared the codebase for future float-related enhancements. The work demonstrated strong skills in compiler development, system programming, and testing, with all features developed in Rust and aligned with evolving language standards.