Шмидт.net

  YO DAWG WE HEARD YOU LIKE LISP AND C, AND WE PUT LISP IN YOUR C, SO YOU CAN LISP WHILE YOUR C
  //sin(2*M_PI*(sample/RATE+freq)
  arg1 = stack_pop(valstack);
  arg2 = stack_pop(valstack);
  stack_push(
  valstack,
  jit_insn_sin(
  func,
  jit_insn_mul(
  func,
  const_phi_to_rad,
  jit_insn_add(
  func,
  jit_insn_div(
  func,
  arg2,
  const_rate),
  arg1))));

  via @lexszero