core::arch::x86

Function _mm_stream_ps

1.27.0 · source
pub unsafe fn _mm_stream_ps(mem_addr: *mut f32, a: __m128)
Available on (x86 or x86-64) and target feature sse and x86 only.
Expand description

Stores a into the memory at mem_addr using a non-temporal memory hint.

mem_addr must be aligned on a 16-byte boundary or a general-protection exception may be generated.

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.