__gcc_cpu_feature

[Paolo Carlini]

Richard Guenther wrote:

>What would be interesting to know, is what architectures apart from ia32 will
>likely profit from this?
>
A quick comment about this: *many*. It's not only about i386 vs i486+,
it's about all the arches that don't have the builtins *currently*
implemented not because of fundamental limitations, but because of
lazyness of the maintainers :-) I mean, currently we have nothing more
than: i686 (and real, 64-bit, x86_64), ia64, alpha, powerpc, s390. Jakub
just contributed sparc in gomp-branch (but, I gather, only new sparcs
are amenable to that)

There is also the case of hppa, which, I gather, is uncertain whether or
not can have the builtins implemented in the first place.

Paolo.