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Re: -freduce-all-givs and fortran


> Using -fno-move-all-movables  -fno-reduce-all-givs is a 
> performance gain for 171.swim and 200.sixtrack but pessimizes 
> 172.[m]grid and 173.app[lu], 168.wupwise is indifferent.

Fascinating ... Do 171.swim and 200.sixtrack profit from loop
optimization *at all* ?  What happens if you use

-O2 -march=athlon -malign-double -fno-strength-reduce

?

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