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Re: [PATCH] rewrite fwprop's dataflow



This explanation should be part of the body of the code, not something that will be lost in the mail. Given that this is effectively a new and unique problem, this is especially important.

Thanks Kenny, I'll copy and paste it with small adjustments to df-problems.c/fwprop.c.


The dataflow code is fine. I am not authorized to approve the changes to fwprop.c

I think you can, the border between DF and passes using it are murky. After all it's just replacement for RD+chains -- I could have made a "singleton UD" problem in df-problems.c and that would have qualified as dataflow, but the code would be uglier. Also, you are right now the only one besides me to understand the MD problem. :-)


Paolo


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