Function svprfw 

pub unsafe fn svprfw<const OP: svprfop, T>(pg: svbool_t, base: *const T)

🔬This is a nightly-only experimental API. (stdarch_aarch64_sve #145052)

Available on (AArch64 or ARM64EC) and target feature sve only.

Prefetch words Arm’s documentation

Safety

• pointer::offset safety constraints must be met for the address calculation for each active element (governed by pg).