In the SysCtlDelay documentation, you can read "The loop takes 3 cycles / loop."In simulator, it takes 4 cycles / loop.I'm wrong?
Again, that's TI's software - so you should be asking them about it, and/or for clarifications on their documentation!
By measuring the switching time of the port with an oscilloscope, it is confirmed that Delay actually occupies 3 cycles / loop.And in the simulation 4 cycles / loop.