Regressions caused by copy_string patch.

[Paul Thomas]

Are you all absolutely sure that FX's patch is the problem here?  No 
matter what, FX's patch should produce an BUILT_IN_MEMMOVE someplace.  I 
do not see such a call in the code produced by actual_array_substr_2.f90

Equally, however, I do not see any type mismatches in my patch.

Paul

>Steve,
>   With FX's proposed fix, I get...
>
>gfortran -m64 -O actual_array_substr_2.f90
>actual_array_substr_2.f90: In function 'MAIN__':
>actual_array_substr_2.f90:10: internal compiler error: in copy_to_mode_reg, at explow.c:635
>Please submit a full bug report,
>with preprocessed source if appropriate.
>See <URL:http://gcc.gnu.org/bugs.html> for instructions.
>
>...on MacOS X.
>       Jack
>
>
>