egcs 1.0.1 and fortran optimization

Dave Love d.love@dl.ac.uk
Tue Jan 20 14:54:00 GMT 1998


>>>>> "Vladimir" == Vladimir Eltsov <ve@boojum.hut.fi> writes:

 Vladimir> Am I missing some compilation option(s) for egcs g77
 Vladimir> compiler

-malign-double and -fforce-addr (see the manual).  Maybe also
-funroll-loops.  If you're using double precision what you see may be
affected by random non-alignment of the doubles (see the manual
again).  I haven't seen slowdown between gcc 2.7 fortran and egcs on a
pentium (586).

I've no idea whether -mpentiumpro is appropriate for a pentium II --
can anyone say for future reference?



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