Re: ATLAS code freeze

[R Clint Whaley <rwhaley@cs.utk.edu>]

Camm,

>Hi Clint!  Almost done with the L2.  Found a few possible issues with
>the ger tester.
>
>1)  Don't you need the following patch to r1test.c?

Indeed, yes.  Thanks for the bug report.  The fix I applied to each of those
lines was to replace aincY with (aincY SHIFT).

>2)  Without this, the tester runs over the very large numbers you
>    filled in the gaps, presumably to spot errors more readily.  It
>    revealed, however, (I think), an issue with the 'epsilon' used to
>    determine whether the test routine and the reference agree.  Here
>    is a small program which gives a small discrepancy between the
>    correct SSE and normal fpu, but which is (again I think) within
>    normal floating point tolerance:

Well, the error test is really more like a sanity test; it should probably
do a residual based on norms.  However, it looks like I screwed up the sanity
test even.  Looks like to me that emul should be 16 for complex.  Does this
fix your prob, or are you having real fail as well?

Thanks,
Clint