[Bug target/85100] __builtin_cpu_supports avx does not verify OS supports it

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85100

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
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   Target Milestone|---                         |6.5
           Severity|enhancement                 |normal

--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
We need this in all release branches.