>Protip: your functions should be padded with instructions that'll trap if you miss a return.

Galaxy brained protip: instead of a trap, use return instructions as padding, that way it will just work correctly!

Some compilers insert trap instructions when aligning the start of functions, mainly because the empty space has to be filled with something, and it's better to use a trapping instruction if for some reason this unreachable code is ever jumped to. But if you have to do it manually, it doesn't really help, since it's easier to forget than the return.