Add a note mentioning --view-sunit-dags improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52008 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 7720bf4..9222009 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -202,6 +202,8 @@
non-power-of-2 integer sizes.</li>
<li>Support for 128-bit integers on X86-64.</li>
<li>Several compile time speedups for code with large basic blocks.</li>
+<li>Several improvements which make llc's <tt>--view-sunit-dags</tt>
+ visualization of scheduling dependency graphs easier to understand.</li>
</ul>
</div>