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Re: [PATCH] more PR33928: DIY dataflow in fwprop, to enable it at -O1 and speed it up at -O2

Paolo Bonzini wrote:
>> 1) I think that this should have been packaged as a new dataflow problem
>> so that it could have been used by others.
>>     
>
> For the record, the way to go is to not use rd at all, after which I'd
> say it's correct to make a new dataflow problem.
>
> Paolo
>
>   
So how would you do it, I assume that you are not planning to do the
trick of only looking at regs that have a single def.  That is a much
weaker problem.

kenny
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