[Bug libfortran/38654] Fortran I/O speedup

[jvdelisle at gcc dot gnu dot org]

------- Comment #2 from jvdelisle at gcc dot gnu dot org  2008-12-28 20:55 -------
Daniel, it can't hurt to look.

Also, I have a format data hashing/caching patch in the works.  This avoids
re-parsing format strings if they have already been parsed once such as in a
loop containing I/O statements.  Preliminary results I am seeing about a 17%
speedup on at least one test case.  The patch is fairly straightforward, but I
do need to find a Gnu-able hash function.  I am using one out of wikipedia at
the moment.  I will post the patch as soon as I get it to a bug free state. 
Proof of principle is there for this.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38654