Stepanov results with development gcc

Joe Buck jbuck@racerx.synopsys.com
Fri Dec 8 12:29:00 GMT 2000


Daniel Berlin writes:
> Yes.
> In fact, on a gnupro 99r1 based branch compiler (BeOS) on x86, which is the
> same time frame, we have better than perfect.
> It's like .7 or .8.

No, any report with a value < 1 is IMPERFECT, and large deviations
from 1 indicate a bug.

It means that we are misoptimizing test 0, a very simple loop.
All the loops should run at the same rate.  If any loop runs slower,
it means that the compiler is putting out pessimal code for that loop.

A perfect compiler will produce 1.0 for every test.



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