[Bug target/49244] no intrinsics to emit 'lock bts' and 'lock btc'

[mgorny at gentoo dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49244

Michał Górny <mgorny at gentoo dot org> changed:

           What    |Removed                     |Added
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                 CC|                            |mgorny at gentoo dot org

--- Comment #3 from Michał Górny <mgorny at gentoo dot org> 2012-08-23 09:46:56 UTC ---
I believe that this became more important with C++11 <atomic>, and a separate
intrinsics will be not be enough anymore. I believe that GCC should be able to
optimize out such a simple cases.