During ISel lowering, there are some stubs I realize that I need to emit during AsmPrinter.
The question is: where to store that information?
As a hack it could be stored in Subtarget.
If there is a reasonable place to put it, it could be store in Module.
It's just a list of functions that I need to generate stubs for.
I know the possible elements of the list. It's a hardcoded list.