Function rustc_codegen_llvm::va_arg::emit_direct_ptr_va_arg

fn emit_direct_ptr_va_arg<'a, 'll, 'tcx>(
    bx: &mut Builder<'a, 'll, 'tcx>, 
    list: OperandRef<'tcx, &'ll Value>, 
    llty: &'ll Type, 
    size: Size, 
    align: Align, 
    slot_size: Align, 
    allow_higher_align: bool
) -> (&'ll Value, Align)