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[Bug middle-end/66462] GCC isinf/isnan/... builtins cause sNaN exceptions
- From: "sacks at ucar dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 13 Sep 2017 22:00:54 +0000
- Subject: [Bug middle-end/66462] GCC isinf/isnan/... builtins cause sNaN exceptions
- Auto-submitted: auto-generated
- References: <bug-66462-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66462
Bill Sacks <sacks at ucar dot edu> changed:
What |Removed |Added
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CC| |sacks at ucar dot edu
--- Comment #9 from Bill Sacks <sacks at ucar dot edu> ---
I have found that, with gfortran, the following all lead to a SIGFPE if I
compile with -ffpe-trap=invalid:
(1) ieee_value(my_nan, ieee_quiet_nan)
(2) ieee_value(my_nan, ieee_signaling_nan)
(3) ieee_is_nan called on a signaling NaN
(4) gfortran's built-in isnan called on a signaling NaN
(5) ieee_class called on a signaling NaN
(See https://github.com/NCAR/billsacks-gfortran-snan/tree/master_n01 for test
code and more information.)
Are all of these duplicate problems to the one reported here, or are some of
these separate issues that should be opened?