-funsafe-loop-optimizations

[Mark Mitchell]

David Edelsohn wrote:

> 	While we discuss whether this should be the default or enabled at
> any optimization level, can we agree that users should be able to assert
> with a commandline option that they want less strict induction variable
> semantics?  I hope that we can move forward with an option to address
> these performance regressions and allow users to request this optimzation
> when they *do* want it, along the lines of the draft patch.

I would certainly agree.  I think the first thing to do is to get a 
patch that implements the semantics we want, in the aggressive mode; 
then, we can decide whether we want it to be the default at some 
optimization level or not.

-- 
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
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