wave_barrier in core::arch::amdgpu - Rust
Description: A barrier for only the threads within the current wavefront.

Skip to main content

## wave_barrier

# Function wave_barrier

Source

    pub fn wave_barrier()

🔬This is a nightly-only experimental API. (`stdarch_amdgpu` #149988)
Available on AMD GPU only.
Expand description

A barrier for only the threads within the current wavefront.

Does not result in an instruction but restricts the compiler.

This intrinsic does not behave like a normal function call; it is a “convergent” operation and as such has non-standard control-flow effects which need special treatment by the language. Rust currently does not properly support convergent operations. This operation is hence provided on a best-effort basis. Using it may result in incorrect code under some circumstances.