Function no_std_compat::arch::x86_64::_mm_lfence

pub unsafe fn _mm_lfence()

Available on x86-64 only.

Performs a serializing operation on all load-from-memory instructions that were issued prior to this instruction.

Guarantees that every load instruction that precedes, in program order, is globally visible before any load instruction which follows the fence in program order.

Intel’s documentation