Function _mm_stream_si64

pub unsafe fn _mm_stream_si64(mem_addr: *mut i64, a: i64)

Available on x86-64 and target feature sse2 only.

Stores a 64-bit integer value in the specified memory location. To minimize caching, the data is flagged as non-temporal (unlikely to be used again soon).

Intel’s documentation

Safety of non-temporal stores

After using this intrinsic, but before any other access to the memory that this intrinsic mutates, a call to _mm_sfence must be performed by the thread that used the intrinsic. In particular, functions that call this intrinsic should generally call _mm_sfence before they return.

See _mm_sfence for details.