GCC options and floating-point correctness (benchmarks)

[Dave Korn]

> -----Original Message-----
> From: gcc-owner On Behalf Of Joe Buck
> Sent: 25 March 2004 19:44

> On Thu, Mar 25, 2004 at 02:32:58PM -0500, Scott Robert Ladd wrote:
> > Joe Buck wrote:
> > > But there's a problem.  People have posted trivial programs where 
> > > icc majorly violates IEEE rules.  Could Intel be tuning 
> specifically 
> > > to work well on paranoia, but take impermissible 
> shortcuts elsewhere?
> > 
> > That's certainly possible. It's not like we haven't seen such 
> > creativity in other situations. However, I'd want to find 
> some proof 
> > before making any accusations in this case.
> 
> Agreed; we should be cautious before deciding that there is a problem.
> Are we certain, for example, that icc's optimization of
> 
> 	(a+b)+c == a+(b+c)
> 
> for double a, b, and c, is impermissibly aggressive?
>  


<innocent> Why doesn't someone who has a licensed copy of ICC raise a bug
report with Intel? </innocent> 



    cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....