From 87f95dc8523a0d9f0e021f4af32e34675e79caf4 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Mon, 28 Nov 2011 18:03:11 +0000
Subject: [PATCH] Explain what ExeDepsFix does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145253 91177308-0d34-0410-b5e6-96231b3b80d8
---
 docs/ReleaseNotes.html | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index e3b3bae9c29..435bd932667 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -942,9 +942,12 @@ be used to verify some algorithms.
     comparisons, turning them into various optimized code sequences (e.g.
     using the SSE4/AVX "blend" instructions).</li>
 <li>The SSE execution domain fix pass and the ARM NEON move fix pass have been
-    merged to a target independent execution dependency fix pass.  Targets can
-    override the <code>getExecutionDomain</code> and
-    <code>setExecutionDomain</code> hooks to use it.</li>
+    merged to a target independent execution dependency fix pass. This pass is
+    used to select alternative equivalent opcodes in a way that minimizes
+    execution domain crossings. Closely connected instructions are moved to
+    the same execution domain when possible. Targets can override the
+    <code>getExecutionDomain</code> and <code>setExecutionDomain</code> hooks
+    to use the pass.</li>
 </ul>
 </div>