fn emit_ptr_va_arg<'ll, 'tcx>(
bx: &mut GenericBuilder<'_, 'll, FullCx<'ll, 'tcx>>,
list: OperandRef<'tcx, &'ll Value>,
target_ty: Ty<'tcx>,
pass_mode: PassMode,
slot_size: SlotSize,
allow_higher_align: AllowHigherAlign,
force_right_adjust: ForceRightAdjust,
) -> &'ll Value