Function core::arch::x86_64::_mm_stream_sd

1.27.0 · source ·
pub unsafe fn _mm_stream_sd(p: *mut f64, a: __m128d)
Available on (x86 or x86-64) and target feature sse4a and x86-64 only.
Expand description

Non-temporal store of a.0 into p.

Writes 64-bit data to a memory location without polluting the caches.

§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.