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Update ReleaseNotes to mention Atomic NAND semantic changes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212635 91177308-0d34-0410-b5e6-96231b3b80d8
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Cameron McInally 2014-07-09 18:29:55 +00:00
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@ -59,6 +59,10 @@ Non-comprehensive list of changes in this release
* The prefix for loop vectorizer hint metadata has been changed from
``llvm.vectorizer`` to ``llvm.loop.vectorize``.
* Some backends previously implemented Atomic NAND(x,y) as ``x & ~y``. Now
all backends implement it as ``~(x & y)``, matching the semantics of GCC 4.4
and later.
.. NOTE
For small 1-3 sentence descriptions, just add an entry at the end of
this list. If your description won't fit comfortably in one bullet