A simple optimization proposal

[Krystal Mok]

Hi Martin,

Thanks a lot for your input.

On Fri, Feb 14, 2014 at 12:48 AM, Martin Grajcar <maaartinus at gmail.com>wrote:

> Hi Kris,
>
> just a short answer for now:
>
> At line 1229, I wonder why the immediate additions don't get normalized to
> e.g. using SubI exclusively (AddI doesn't cover const-var). This surely
> isn't something to be done now, just a general question of mine.
>
> You're right, (x - const) does get normalized to (x + -const), so we're
good to just check AddI.


> Maybe you could change in addition to (arraylength > 0) also (arraylength
> != 0) into (arraylength u> 0)?
>
> I've added the pattern. Webrev updated in place again.

Thanks,
Kris


> Regards,
> Martin.
>
>
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