Function _mm_cmpnge_ss

pub unsafe fn _mm_cmpnge_ss(a: __m128, b: __m128) -> __m128

Available on (x86 or x86-64) and target feature sse and x86 only.

Compares the lowest f32 of both inputs for not-greater-than-or-equal. The lowest 32 bits of the result will be 0xffffffff if a.extract(0) is not greater than or equal to b.extract(0), or 0 otherwise. The upper 96 bits of the result are the upper 96 bits of a.

Intel’s documentation