Function swiss_army_knife::intel_hardware_lock_elision::__hle_release_compare_exchange_n4

pub unsafe fn __hle_release_compare_exchange_n4(
    ptr: *mut u32, 
    oldp: *mut u32, 
    newv: u32
) -> bool

Atomically compare-and-swap with ‘HLE Release’ memory ordering. This compares the content of ptr with the content of oldp:-

• If equal, the function atomically writes newv into ptr and returns true.
• If they are not equal, the function atomically writes the content of ptr into oldp and returns false Since this is only for the x86 / x86_64 architecture, there is no weak variant.