Compiling gcc in 64 bits mode

[kevin diggs]

On Fri, Jul 29, 2011 at 1:59 PM, Ian Lance Taylor <iant@google.com> wrote:
>
> Normally if you build gcc on a 64-bit host it will automatically be
> configured to generate 64-bit code.
>
I don't have any x86-64 (int64) systems. Is it better to use 64-bit on
x86-64 even with the larger memory footprint (because the programming
model is better (more registers, etc))? Is there a 32-bit pointer
(address space 64-bit programming model?

Thanks!

kevin