Re: GCC Benchmarks (coybench), AMD64 and i686, 14 August 2004

[Joe Buck <Joe dot Buck at synopsys dot COM>]

On Tue, Aug 17, 2004 at 08:49:51PM -0400, Robert Dewar wrote:
> Joe Buck wrote:
> 
> >>Actually to be fair, we have often found in the past that an impression
> >>that ICC was doing something horrible turned out to be wrong on more
> >>careful examination, so let's make sure we know what we are talking
> >>about here :-)
> 
> > You said otherwise yourself:
> 
> > http://gcc.gnu.org/ml/gcc/2004-03/msg01597.html
> 
> A little problem with quantifiers in your reasoning here :-) My
> statement above does NOT have a universal quantifier in it,
> so a single counter example is not a contradiction!
> 
> I just think we need to be careful to be absolutely sure we
> know what icc is doing before we criticize.

I'm not accusing the icc developers of lack of ethics; merely pointing
out that, as for many compilers, performance on benchmarks can be
misleading.