x86_64 in FC4?

[Chip Turner]

Roland McGrath <roland at redhat.com> writes:

> Unlike other architectures with 32-bit and 64-bit flavors, where the
> biggest change in 64-bit binaries is using twice as much space for a lot of
> things, the x86-64 architecture also has twice as many registers as the
> 32-bit x86 and so 64-bit compiled code tends to perform noticeably better.

Aren't those registers available to 32bit apps, though, should the
compiler choose to make use of them?

Chip

-- 
Chip Turner                   cturner at redhat.com
                              Red Hat, Inc.