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Re: -O3 and new optimizations in 4.4.0

Sebastian Pop wrote:
On Fri, Apr 24, 2009 at 08:12, Robert Dewar <dewar@adacore.com> wrote:
What would we have to do to make PPL and CLooG required to build GCC? 
Why would that be desirable? Seems to me the current situation is
clearly preferable.

To enable loop transforms in -O3. 

To me, you would have to show very clearly a significant performance
gain for typical applications to justify the impact of adding
PPL and CLooG. I don't see it. If you want these transformations
you can get them, why go to all this disruptive effort for the
default optimization case?

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