Function core::arch::x86_64::_mm_floor_ps

pub unsafe fn _mm_floor_ps(a: __m128) -> __m128

This is supported on x86-64 and target feature sse4.1 only.

Round the packed single-precision (32-bit) floating-point elements in a down to an integer value, and stores the results as packed single-precision floating-point elements.

Intel’s documentation