# Function core::arch::aarch64::__wfe
[−][src]

    pub unsafe fn __wfe()

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on AArch64 only.
Expand description

Generates a WFE (wait for event) hint instruction, or nothing.

The WFE instruction allows (but does not require) the processor to enter a low-power state until some event occurs such as a SEV being issued by another processor.