pub unsafe fn _mm_clflush(p: *const u8)Available on x86-64 and target feature
sse2 and (x86 or x86-64) only.Expand description
Invalidates and flushes the cache line that contains p from all levels of
the cache hierarchy.
§Safety
Unlike the prefetch intrinsics, CLFLUSH is subject to all the permission
checking and faults associated with a byte load, so p must point to a
byte that is valid for reads.