# Function core::arch::x86::_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 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.