From: Nadav Rotem <nrotem@apple.com>
Date: Wed, 19 Dec 2012 08:28:24 +0000 (+0000)
Subject: DOC: add a benchmarks that compares us to gcc and icc.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=67a6ec87be54f84e8c8ea6c49583e9303fecef2c;p=oota-llvm.git

DOC: add a benchmarks that compares us to gcc and icc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170509 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/docs/Vectorizers.rst b/docs/Vectorizers.rst
index 291c76dd265..b60e46dbca0 100644
--- a/docs/Vectorizers.rst
+++ b/docs/Vectorizers.rst
@@ -188,6 +188,19 @@ See the table below for a list of these functions.
 |fma  |trunc|nearbyint|
 +-----+-----+---------+
 
+Performance
+^^^^^^^^^^^
+
+This section shows the the execution time of Clang on a simple benchmark: 
+`gcc-loops <http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/UnitTests/Vectorizer/>`._
+This benchmarks is a collection of loops from the GCC autovectorization 
+`page <http://gcc.gnu.org/projects/tree-ssa/vectorization.html>` by Dorit Nuzman._
+
+The chart below compares GCC-4.7, ICC-13, and Clang-SVN at -O3, running on a Sandybridge.
+The Y-axis shows time in msec. Lower is better.
+
+.. image:: gcc-loops.png
+
 The Basic Block Vectorizer
 ==========================
 
diff --git a/docs/gcc-loops.png b/docs/gcc-loops.png
new file mode 100644
index 00000000000..e178146bedd
Binary files /dev/null and b/docs/gcc-loops.png differ