• name: withsmallfuncsets
  • description: Represent groups of less funtions than this as indices into an array
  • command-line: –translation-withsmallfuncsets
  • option type: integer option
  • default: 0

Represent function sets smaller than this option’s value as an integer instead of a function pointer. A call is then done via a switch on that integer, which allows inlining etc. Small numbers for this can speed up PyPy (try 5).