Hi,
this patch adds changesentry for IPA/LTO and FDO.

Honza

diff --git a/htdocs/gcc-11/changes.html b/htdocs/gcc-11/changes.html
index 6f58cfe8..bba16ead 100644
--- a/htdocs/gcc-11/changes.html
+++ b/htdocs/gcc-11/changes.html
@@ -170,6 +170,37 @@ a work-in-progress.</p>
       use <code>-g</code> together with <code>-gdwarf-2</code>,
       <code>-gdwarf-3</code> or <code>-gdwarf-4</code>.
   </li>
+  <li>
+    Inter-procedural optimization improvements:
+    <ul>
+      <li>New IPA-modref pass was added to track side-effects of function calls
+          and improve precision of points-to-analysis. Pass can be controlled
+         by <code>-fipa-modref</code> attribute.
+      </li>
+      <li>Identical code folding pass was significantly improved to increase 
number of
+         unified functions and to reduce compile-time memory use.</li>
+      <li>IPA-CP heuristics improved its estimation of potential usefulness of
+          known loop bounds and strides by taking into account the estimated
+          frequency of these loops. </li>
+  </li>
+  <li>
+    Link-time optimization improvements:
+    <ul>
+      <li>LTO bytecode file format was optimized for smaller object files and
+         faster streaming.</li>
+      <li>Memory allocation of the linking stage was improved to reduce peak
+         memory use.</li>
+    </ul>
+  </li>
+  <li>
+    Profile driven optimization improvements:
+    <ul>
+      <li>
+        Using <a 
href="https://gcc.gnu.org/onlinedocs/gcc-10.1.0/gcc/Optimize-Options.html#index-fprofile-values";><code>-fprofile-values</code></a>,
+       was improved by tracking more target values for e.g. indirect calls.
+      </li>
+    </ul>
+  </li>
 </ul>
 
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