A simple optimization proposal

[Martin Grajcar]

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.

Maybe you could change in addition to (arraylength > 0) also (arraylength
!= 0) into (arraylength u> 0)?

Regards,
Martin.
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