From 592453413690a2d16784667d1644758b9af700c1 Mon Sep 17 00:00:00 2001
From: Piotr Padlewski <piotr.padlewski@gmail.com>
Date: Wed, 28 Dec 2016 18:23:23 +0000
Subject: [PATCH] Mention devirtualization in release notes

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@290675 91177308-0d34-0410-b5e6-96231b3b80d8
---
 docs/ReleaseNotes.rst | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 11ee88f4ae..3f25278f32 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -47,6 +47,24 @@ sections with improvements to Clang's support for those languages.
 Major New Features
 ------------------
 
+- Enhanced devirtualization with `-fstrict-vtable-pointers`. Clang devirtualizes
+across different basic blocks, like loops:
+
+.. code-block:: c++
+   struct A {
+       virtual void foo() {}
+   };
+   void indirect(A &a, int n) {
+       for (int i = 0 ; i < n; i++)
+           a.foo();
+
+   }
+   void test(int n) {
+       A a;
+       indirect(a);
+   }
+
+
 -  ...
 
 Improvements to Clang's diagnostics
-- 
2.40.0