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Re: PATCH RFC: Speed up compilation of 20001226-1.c

Jan Hubicka wrote:

> If engline was keeping track of changed edges and calling VRP per edge
> basis, we would have linear time complexity as promised. I've started
> implementing this instead of the trick with two queues but got
> sidetacked by IPA merge and I don't think I have the patch around
> anymore, so I guess the simple heuristics might be good pick.

Based on this discussion, I think Ian's patch is OK.

Everyone's agreed it's correct, and nobody thinks it's harmful.  The
20001226-1.c test accounts for a noticeable fraction of overall test
time, so speeding it up is a win, if just for us GCC developers.  There
may be better improvements, but none of them are ready, and Ian's change
doesn't make it any harder to implement them.

So, Ian, I think you should check in your patch.

Thanks,

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713
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