[Patch, Fortran] Another floating point speedup

[Steve Kargl]

On Sat, Jan 03, 2009 at 08:52:18PM +0100, Daniel Kraft wrote:
> Once again...  This patch should finally be rid of the bugs (no 
> regressions) and handles exponents of size up to 4 digits (should be 
> enough).
> 
> In addition, I got rid of the memcpy in convert_real and use 
> pointer-casting instead, got another second of speed up.
> 
> Ok for 4.5?  Or should I first look at the list_read.c floating parsing 
> routines (I guess those are for unformatted IO?)
> 

Daniel
 
With your patch, I'm seeing speed improvements without regressions
in my very limited testing on i686-*-freebsd. 

          4.3.3   trunk
test.f90  40.0    33.1   17.5%  (Your test.f90 program)
shell.f    5.06    4.78   5.5%  (One of my old codes)

I modified shell.f to use an E28.15 format to get 15 digits.
There are no differences in a comparison of output file for
the 4.3.3 binrary compared to a patched trunk.


-- 
Steve