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SubjectRe: [BUG] PPC math-emu multiply problem
On Mon, Aug 16, 2004 at 02:28:32PM -0400, Greg Weeks wrote:

> Tom Rini wrote:
> >>The way I got the LSB tests to pass was to remove the round in the
> >>denormalised underflow case. This appears to match the hardware
> >>behavior. I've not looked at the PPC floating point model close enough
> >>to know if this is proper behavior. It is what the LSB tests are
> >>expecting and doesn't cause a failure in any of the other LSB tests.
> >>
> >>
> >
> >Have you guys run the LSB tests on some PPC with hw floating point (is
> >that what you mean by 'matches the hardware behavior' ?) to see if the
> >test also passes there as-is? And does anyone object to this patch?
> >Now that is out I'm gonna start committing in a bunch of stuff
> >I've had queued up and see if I can get Linus to pull. Thanks.
> >
> >
> >
> I didn't run the entire LSB, just some of the math tests. I had an 8260
> and the 8560 we found the problem on and also a normal x86 box. I think
> this is the correct fix. At least all of the LSB math tests pass now and
> the LTP float tests don't complain.

Just to be clear, with that patch, 8260, 8560 and x86 all agree on
results ?

Tom Rini
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