[Bug fortran/90539] [10 Regression] 481.wrf slowdown by 25% on Intel Kaby with -Ofast -march=native starting with r271377

tkoenig at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon May 27 08:16:00 GMT 2019


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90539

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |tkoenig at gcc dot gnu.org

--- Comment #28 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
https://gcc.gnu.org/ml/fortran/2019-05/msg00173.html reports
the same symptoms for netcdf-fortran-4.4.5, presumably due
to the same issue.

I'll try to fix that one and then see if the SPEC failure disappears
along with it.

Martin, one additional question: When you step up from the segfault
in the executable, is an array constructor passed as an argument
somewhere up the call chain?  This is what appears to cause the trouble
int netcdf.


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