Converting to 64-bit

[Ian Lance Taylor]

arpit jain <dreams_arpit@yahoo.co.in> writes:

> I have a compiler for Fortran90 language that supports
> 32-bit architecture.
> I want to convert that compiler so that it can support
> both 32-bit and 64-bit architecture(say Opteron).
> 
> What issues I need to take in consideration or what
> changes I should do in source code (Froint End or Back
> End)?

This mailing list is for gcc.  gcc already supports 64-bit
architectures, including Opteron.  If you are asking a question about
a different compiler, then this is the wrong mailing list.

Ian