Function core::arch::x86_64::_mm_stream_si128

1.27.0 · source ·
pub unsafe fn _mm_stream_si128(mem_addr: *mut __m128i, a: __m128i)
Available on (x86 or x86-64) and target feature sse2 and x86-64 only.
Expand description

Stores a 128-bit integer vector to a 128-bit aligned 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.