Function core::arch::x86::_mm_store1_pd

pub unsafe fn _mm_store1_pd(mem_addr: *mut f64, a: __m128d)

This is supported on x86 and target feature sse2 only.

Stores the lower double-precision (64-bit) floating-point element from a into 2 contiguous elements in memory. mem_addr must be aligned on a 16-byte boundary or a general-protection exception may be generated.

Intel’s documentation