Bug#571572: Bug#569436: blas: zgesvd seems to give incorrect results

2010-03-03 Thread Kumar Appaiah
Dear Denis, On Wed, Mar 03, 2010 at 11:41:50AM +0100, Denis Barbier wrote: Hi, For the record, thanks to the GCC compile farm, I determined that this bug has been fixed in gcc trunk by http://gcc.gnu.org/viewcvs?view=revisionrevision=145494 Unfortunately this is a merge from a branch

Bug#569436: Bug#571572: Bug#569436: blas: zgesvd seems to give incorrect results

2010-03-03 Thread Denis Barbier
On 2010/3/3 Kumar Appaiah wrote: Dear Denis, On Wed, Mar 03, 2010 at 11:41:50AM +0100, Denis Barbier wrote: Hi, For the record, thanks to the GCC compile farm, I determined that this bug has been fixed in gcc trunk by    http://gcc.gnu.org/viewcvs?view=revisionrevision=145494

Bug#571572: Bug#569436: blas: zgesvd seems to give incorrect results

2010-03-03 Thread Kumar Appaiah
clone 571572 -1 reassign -1 gcc-4.4 4.4.3-3 retitle -1 errnoenous code generated with -ftree-vectorize forwarded -1 http://gcc.gnu.org/PR43251 block 571572 by -1 thanks Dear Daniel, On Wed, Mar 03, 2010 at 09:11:29PM +0100, Denis Barbier wrote: On 2010/3/3 Kumar Appaiah wrote: Dear Denis,

Bug#569436: Bug#571572: Bug#569436: blas: zgesvd seems to give incorrect results

2010-03-03 Thread Sylvestre Ledru
Waow, you did it, congratulations. I can indeed reproduce this bug with your small testcase. Wonderful! I've reported the bug to upstream gcc, and have created a new bug against the Debian gcc and blocked this bug by it. Hope this helps. Thanks for pointing me in the right direction.

Bug#571572: Bug#569436: blas: zgesvd seems to give incorrect results

2010-02-27 Thread Kumar Appaiah
(Also CCing #571572) Dear Denis, On Sat, Feb 27, 2010 at 05:44:45PM +0100, Denis Barbier wrote: Hi, I played with the example provided by Kumar Appaiah, and narrowed the problem down to zdrot; after copying zdrot.f into the same directory as zgesvd_ex.f: $ gfortran -O2 -c zgesvd_ex.f

Bug#571572: Bug#569436: blas: zgesvd seems to give incorrect results

2010-02-27 Thread Denis Barbier
On 2010/2/27 Kumar Appaiah wrote: (Also CCing #571572) Dear Denis, On Sat, Feb 27, 2010 at 05:44:45PM +0100, Denis Barbier wrote: Hi, I played with the example provided by Kumar Appaiah, and narrowed the problem down to zdrot; after copying zdrot.f into the same directory as zgesvd_ex.f: