Re: comparison of 2.95.2 and 3.2 optimizers on SPARC

[Loren James Rittle <rittle at latour dot rsch dot comm dot mot dot com>]

In article <3E147E56.90905@roguewave.com>,
Martin Sebor<sebor@roguewave.com> writes:

>> Martin, could you confirm that you indeed tested the libstdc++-v3
>> library as was built during a normal gcc bootstrap process?

> Yes, I used a stock installation of gcc 3.2 and libstdc++. I can
> also confirm a similar result on Linux. The numbers you are seeing
> are so close because they are both for stdio (because of the silly
> way my simplified test case deals with command line arguments --
> sorry about that).

Martin,

Oops and, likewise, sorry I didn't see that issue.  I can now confirm
your report.  Thank you (again) for taking the time to report it and
the follow up.

On FreeBSD/i386 with 2.95.X:

S rittle@latour; time a.out 1000000 stdio >/dev/null
     2r     1.6u     0.0s       a.out 1000000 stdio
S rittle@latour; time a.out 1000000 iostream >/dev/null
     1r     0.9u     0.0s       a.out 1000000 iostream

On FreeBSD/i386 with mainline:

S rittle@latour; time a.out 1000000 stdio >/dev/null
     1r     1.6u     0.0s       a.out 1000000 stdio
S rittle@latour; time a.out 1000000 iostream >/dev/null
    14r    14.4u     0.0s       a.out 1000000 iostream

I have done no analysis yet.

Regards,
Loren