Re: [PATCH], V4, patch #9 [part of patch #4.2], Add prefixed address offset checks

[Segher Boessenkool]

Hi!

On Fri, Oct 04, 2019 at 08:29:11AM -0400, Michael Meissner wrote:
> @@ -8651,6 +8675,11 @@ rs6000_legitimate_address_p (machine_mod
>        && mode_supports_pre_incdec_p (mode)
>        && legitimate_indirect_address_p (XEXP (x, 0), reg_ok_strict))
>      return 1;
> +
> +  /* Handle prefixed addresses (PC-relative or 34-bit offset).  */
> +  if (address_is_prefixed (x, mode, NON_PREFIXED_DEFAULT))
> +    return 1;

Is this correct?  Are addresses with a larger offset always legitimate?
I don't see why that would be the case.

The rest of the patch looks good, thanks.


Segher