On Thu, Apr 05, 2007 at 09:54:08AM -0300, [EMAIL PROTECTED] wrote:
> Hi All,
> 
>       Is it always safe to use "-funroll-loops" as a flag to 
> /etc/make.conf ? Does it realy improve the compiled programs?
> 
>       When should I avoid to use it?


        If you are using gcc42 -funroll-loops can be a win. gcc3.x
        is less savvy about knowing the limits of complexity to unroll
        which loops.  I'm doing some tests with gcc34 (default) and
        gcc42. The latter can yield significant improvements  iff
        you know what you're doing.  It's no magic bullet.

        gary


> 
> - Marcelo
> 
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-- 
  Gary Kline  [EMAIL PROTECTED]   www.thought.org  Public Service Unix

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