Clarification request for ipa/cgraph code

[Paolo Bonzini]

Mike Stump wrote:
> In ipa-type-escape.c we have:
> 
>   /* Return either TYPE if this is first time TYPE has been seen an
>      compatible TYPE that has already been processed.  */
> 
> I'd fix it, if I knew I knew what it meant.  either, an and that are
> the things that are confusing to me.

Return TYPE if no type compatible with TYPE has been seen so far, 
otherwise return a type compatible with TYPE that has already been 
processed.

Or,

Find a type compatible with TYPE among those that have been processed, 
and return it.  If none can be found, register and return TYPE.

(It took me two/three iterations to read your message too.  You want to 
quote "either", "an" and "that" probably...).

Paolo