A new patch for floating point conditional mov on PPo

H.J. Lu hjl@lucon.org
Tue Jun 9 18:34:00 GMT 1998


> 
> > Here is a new patch for PPro FP conditional moves. I hope it fixes
> > all the unsigned integer comparison bugs.
> 
> Umm, my impression was that the problems revolved around * signed *

Ooops. I meant to say "signed integer comparison."

> integer comparisons.  Also, have you looked at the issues regarding
> integer conditional moves based on floating point comparisons?  There

Not yet. I will work on that after "signed integer comparison" is fixed
first.

> is some overlap regarding the issues affecting FP conditional moves
> based on FP conditions and integer conditional moves based on FP
> conditions.

The FP comparisons need a scratch HI q register even on PPro to handle
NaN right. Other than that, I think it is ok.


-- 
H.J. Lu (hjl@gnu.org)



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