Strange SIGFPE (underflow?) with gfortran [ -mieee ?]
Rob
spamrefuse@yahoo.com
Fri Oct 20 23:30:00 GMT 2006
Brooks Moses wrote:
>
> Given the quoted gdb results, it appears that this
> omitted negative sign is just a typo in the email
> message, and that the actual line in the program
> is the correct "R1=-708.396", with the sign
> unchanged.
Yes, indeed that was a 'cut&paste' typo; sorry.
All the numbers were negative.
I've come to following conconlusion.
One of two flags solved my runtime SIGFPE:
-mieee
or
-mfp-trap-mode=su
I've tried each of them separately and successfully.
The first one compromises on the code efficiency,
so I concluded that the second one would be my best
choice.
Note: this is specifically an Alpha system issue.
Is there a GCC mailing list where I can find
people that are familiar with these problems and
Alpha related issues? I'd like to double check
whether I'm doing the right thing here.
Thanks,
Rob.
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