Add a stub about the inline cost rewrite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154892 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 22ceb74..54cfa20 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -324,6 +324,9 @@
module as a whole to LLVM subsystems.</li>
<li>Loads can now have range metadata attached to them to describe the
possible values being loaded.</li>
+ <li>Inline cost heuristics have been completely overhauled and now closely
+ model constant propagation through call sites, disregard trivially dead
+ code costs, and can model C++ STL iterator patterns.</li>
<li>....</li>
</ul>
</div>