------- Comment #15 from sgk at troutmask dot apl dot washington dot edu 2006-10-28 02:59 ------- Subject: Re: lapack runs into infinite loop with -03
On Sat, Oct 28, 2006 at 02:07:00AM -0000, fkar at nemesis-project dot org wrote: > > > Are you building slamch.f and dlamch.f with -O3 or even -O1? > > Don't. These files try to determine machine values (e.g., > > epsilon). Optimization can give some really strange answers. > > Thank you!!! > That totally solved the problem and now the program executes fine. > > Is this a bug after all? > No. It is very old Fortran code that tries to be clever. Unfortunately, aggressive optimization will break the cleverness. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29621