[Bug fortran/51638] gfortran optimization breaks a single variable used as both input and output for subroutine call

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51638

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #10 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2012-01-08 17:36:19 UTC ---
As discussed, gfortran does the Right Thing here,
and disabling this optimization would slow down
other programs.