i686 (PentiumPro) Optimizer Bug

[H.J. Lu]

> 
> >This is a patch for egcs 1.1.1 which fixes the bug
> >
> > http://www.cygnus.com/ml/egcs-bugs/1998-Nov/0476.html
> 
> [snip]
> 
> >If you are using floating point with Pentium Pro optimization, I
> >strongly encourage you to give this patch a try.
> 
> Hi,
> 
> 1. Just to provide another datapoint, I'd like to confirm
>    that the patch reported in
> 
>  http://www.cygnus.com/ml/egcs-patches/1998-Dec/0400.html
> 
>    solved the problem reported as 
> 
>  http://www.cygnus.com/ml/egcs-bugs/1998-Nov/0476.html
> 
>   related to '-march=pentiumpro -O2' compiler options. 
>   (Compiler details below)

I hope someone will take a look at it soon.

> 
> 2. However, the bug reported at
> 
>  http://www.cygnus.com/ml/egcs-bugs/1998-Nov/0169.html
> 
>   related to '-march=pentiumpro -O2 -funroll-loops' 
>   is still there, even with the new patch :(
> 

My patch is not related to this bug.

Thanks for your feedback.


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