Rust 1.98 Enables Float Auto-Vectorization

Rust 1.98.0 stabilized algebraic operators for floats, allowing the compiler to reorder floating-point operations for auto-vectorization. A developer demonstrated that a simple sum-of-products loop, which previously failed to vectorize due to IEEE 754 non-associativity, now compiles to efficient 256-bit AVX2 vector instructions using these new operators.