It’s ridiculous because something as simple as the compiler picking different registers is going to make zero functional difference but give a false negative on assembly compare.

Yet the C code can’t pick what registers to use, so the poor agent is probably shuffling the code around randomly for hours or days until it matches.

That’s probably why the agent dropped down into inline assembly in the first place (the author complained about this), because I bet it’s thinking trace was that this is futile.

Compilers themselves are not even deterministic and running them multiple times creates different assembly.