An undefined atomic operation function was declared.
Erroneous code example:
#![feature(intrinsics)] extern "rust-intrinsic" { fn atomic_foo(); // error: unrecognized atomic operation // function }
Please check you didn‘t make a mistake in the function’s name. All intrinsic functions are defined in librustc_codegen_llvm/intrinsic.rs
and in libcore/intrinsics.rs
in the Rust source code. Example:
#![feature(intrinsics)] extern "rust-intrinsic" { fn atomic_fence(); // ok! }