#[inline]
#[stable(feature = "renamed_spin_loop", since = "1.49.0")]
pub fn spin_loop() {
- #[cfg(all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "sse2"))]
+ #[cfg(target_arch = "x86")]
{
- #[cfg(target_arch = "x86")]
- {
- // SAFETY: the `cfg` attr ensures that we only execute this on x86 targets.
- unsafe { crate::arch::x86::_mm_pause() };
- }
+ // SAFETY: the `cfg` attr ensures that we only execute this on x86 targets.
+ unsafe { crate::arch::x86::_mm_pause() };
+ }
- #[cfg(target_arch = "x86_64")]
- {
- // SAFETY: the `cfg` attr ensures that we only execute this on x86_64 targets.
- unsafe { crate::arch::x86_64::_mm_pause() };
- }
+ #[cfg(target_arch = "x86_64")]
+ {
+ // SAFETY: the `cfg` attr ensures that we only execute this on x86_64 targets.
+ unsafe { crate::arch::x86_64::_mm_pause() };
}
// RISC-V platform spin loop hint implementation