+ /// \brief Registers a yield callback with the given context.
+ ///
+ /// The yield callback function may be called by LLVM to transfer control back
+ /// to the client that invoked the LLVM compilation. This can be used to yield
+ /// control of the thread, or perform periodic work needed by the client.
+ /// There is no guaranteed frequency at which callbacks must occur; in fact,
+ /// the client is not guaranteed to ever receive this callback. It is at the
+ /// sole discretion of LLVM to do so and only if it can guarantee that
+ /// suspending the thread won't block any forward progress in other LLVM
+ /// contexts in the same process.
+ ///
+ /// At a suspend point, the state of the current LLVM context is intentionally
+ /// undefined. No assumptions about it can or should be made. Only LLVM
+ /// context API calls that explicitly state that they can be used during a
+ /// yield callback are allowed to be used. Any other API calls into the
+ /// context are not supported until the yield callback function returns
+ /// control to LLVM. Other LLVM contexts are unaffected by this restriction.
+ void setYieldCallback(YieldCallbackTy Callback, void *OpaqueHandle);
+
+ /// \brief Calls the yield callback (if applicable).
+ ///
+ /// This transfers control of the current thread back to the client, which may
+ /// suspend the current thread. Only call this method when LLVM doesn't hold
+ /// any global mutex or cannot block the execution in another LLVM context.
+ void yield();
+