From 9753da175d55783411fe0f24b46c061fc6788482 Mon Sep 17 00:00:00 2001 From: Cameron McInally Date: Wed, 9 Jul 2014 18:29:55 +0000 Subject: [PATCH] Update ReleaseNotes to mention Atomic NAND semantic changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212635 91177308-0d34-0410-b5e6-96231b3b80d8 --- docs/ReleaseNotes.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index 349074a08da..fb2e248ce36 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -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 -- 2.49.0