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Re: memcpy performance (fnobuiltin)


Here are some of Eric's comments.

--joel


On Wed, 10 Dec 1997, Eric Norum wrote:

> I just got back from invigilating (I love that word) my class's  
> final exam.  While watching the students madly scratching away I did  
> some thinking about the e-mail you sent me about the way newlib  
> builds memcpy.
> 
> It seems to me that it doesn't make any difference whether or not  
> memcpy is compiled with builtins turned off -- what difference does  
> it make if memcpy is built into the compiler when you're actually  
> compiling the memcpy routine?
> 
> I'm about to rebuild the RTEMS GNU tools (gcc in particular) with  
> -DTARGET_MEM_FUNCTIONS=1.
> 
> ---
> Eric Norum                                 eric@skatter.usask.ca
> Saskatchewan Accelerator Laboratory        Phone: (306) 966-6308
> University of Saskatchewan                 FAX:   (306) 966-6058
> Saskatoon, Canada.
>