[Bug libfortran/91030] Poor performance of I/O -fconvert=big-endian

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91030

David Edelsohn <dje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|enhancement                 |normal

--- Comment #3 from David Edelsohn <dje at gcc dot gnu.org> ---
Conversion carries an overhead, but the overhead need not be worse than
necessary.  The conversion overhead for libgfortran is significantly worse than
for competing, proprietary compilers.

-fconvert=big-endian relative to no conversion
Compiler      Slowdown
--------      --------
GFortran         1000%
IBM XLF           200%
Intel Fortran      20%