Constant unsafety::USES_VECTOR_INTRINSICS

pub const USES_VECTOR_INTRINSICS: UnsafeReason;

The unsafe code uses processor-specific intrinsics, such as vector (SIMD) intrinsics. Some of these intrinsics are marked unsafe because they are not guaranteed to be present in all processors. (For example, SSE 4.) Using an intrinsic instruction on a processor that does not implement the intrinsic is undefined behavior.