[Patch, Fortran] Another floating point speedup

[Daniel Kraft]

Hi Dominique,

thanks for testing my pach!

Dominique Dhumieres wrote:
> I have applied the patch in http://gcc.gnu.org/ml/fortran/2009-01/msg00025.html.
> On a 2.1Ghz Core2Duo, Darwin9, the timing of the test goes from 35s to 26s (-m64 -O3,
> for reference with ifort it takes less than 13s). I have two failures with the NIST
> tests: FM110 and 900. The failures for FM110 can be reduced to 
> 
> character(15) :: str="+ .339567+2"
> character(15) :: str1="+.339567+2"
> real :: x
> read(str1,*) x
> print *, x
> read(str,*) x
> print *, x
> end
> 
> where STR gives:
> 
> At line 6 of file read_tst.f90
> Fortran runtime error: Bad real number in item 1 of list input

I don't think this has something to do with it, though, as this error 
message is not generated by my code; and gfortran 4.3 gives this error, 
too, on my system (unless I messed something up).  This looks like 
something to fix with the following up list_read patches, maybe.

Daniel

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