You'd only be able to autosplit if you play on emu, and even then that's questionable since idk what tools available to a SNES emu would allow you to watch the memory well enough to build an autosplitter.
More than likely, you're not going to find an autospliter for a non-PC game.
Autosplitters are only possible for PC games without anti-cheat software, as they have to be able to read the game's memory to figure out where you're at.
Someone tried to make a pixel-reading based Autosplitter for Diablo3 and that turned into a giant mess of memory leaks, not recommendable at all. An Autosplitter for console games would also have to support all kinds of capture devices with all sorts of quality settings and regional differences, which just isn't something that could be set up for games other than the select few with very large communities that have the manpower for such an effort.
Edit: The documentation for Auto Splitters is where you'd expect it on Github, even was linked in the README.md: https://github.com/LiveSplit/LiveSplit/blob/master/Documentation/Auto-Splitters.md
