------- Additional Comments From Thomas dot Koenig at online dot de 2005-02-07 14:03 ------- Things are strange on IA-64.
I played around a bit with different optimization levels for xeigtstd with ded.in as input file. I compiled everything at -O1 and -O3, and then tried replacing single object files with the ones compiled at -O0. Results are as follows: When compiling one of dgemv.f or dger.f with -O0, the failures disappear. When compiling dnrm2.f or dtrmv.f with -O0, the failures go down to two (from four). All of these are BLAS routines. Looks like some loop reordering is causing slight differences in floating point behavior... -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=5900
