Function _mm_store_pd

#[target_feature(enable = "sse2")]
pub const unsafe fn _mm_store_pd(mem_addr: *mut f64, a: __m128d)

Stores 128-bits (composed of 2 packed double-precision (64-bit) floating-point elements) from a into memory. mem_addr must be aligned on a 16-byte boundary or a general-protection exception may be generated.

Intel's documentation