Function core::arch::riscv64::fence_i

source ·
pub unsafe fn fence_i()
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on RISC-V RV64 only.
Expand description

Generates the FENCE.I instruction

A FENCE.I instruction ensures that a subsequent instruction fetch on a RISC-V hart will see any previous data stores already visible to the same RISC-V hart.

FENCE.I does not ensure that other RISC-V harts’ instruction fetches will observe the local hart’s stores in a multiprocessor system.