__attribute__ ifunc examples?

[James Cloos]

Does anyone have a worked example in C of using attribute ifunc to
dispatch over the various x86 SSE/AVX flags, as well as arm neon?

Must one call cpuid manually, or are flags already available to check?

I haven't found any via goog (and the C++ example I found was
incompatible with the gcc-4.6 syntax for ifunc), and glibc's
support for it is too opaque for grep.

Thanks,

-JimC
-- 
James Cloos <cloos@jhcloos.com>         OpenPGP: 1024D/ED7DAEA6