arch:: x86_64:: _mm_store1_ps
pub unsafe fn _mm_store1_ps(p: *mut f32, a: __m128)
Stores the lowest 32 bit float of
a repeated four times into aligned
If the pointer is not aligned to a 128-bit boundary (16 bytes) a general protection fault will be triggered (fatal program crash).
Functionally equivalent to the following code sequence (assuming
satisfies the alignment restrictions):
let x = a.extract(0); *p = x; *p.offset(1) = x; *p.offset(2) = x; *p.offset(3) = x;