Is there a pragma to prevent loop pipeline?

Thanks for your reply! I have a structure like this

for(...) {
    
    operation: load global memory to local buffer X
 
    //this loop should be pipelined and it's pretty deep
    for(....) {
        
      operation: perform computations which do not use X
    }
    
    operation: use X to do another computation based on the result from the inner loop
}

I don't see how the outer loop can be pipelined. Because The next iteration's loading to the local buffer X cannot start untill the current iteration finishes. But the compiler says the outer loop has II of 2