commit a473c9593bf50cd5d9ed2d36ea0b6210fcf45690
author Eric Christopher <echristo@apple.com> Mon Oct 25 21:17:59 2010 +0000
committer Eric Christopher <echristo@apple.com> Mon Oct 25 21:17:59 2010 +0000
tree 8597d7abe014cbe7c0c09fa643358332e903398f
parent d8f0ade43ee3f9d13d2d98b7a3d07468c2b4096e

Add and describe a quick script to migrate gcc builtins that clang doesn't
know about to the default APIs for x86 vector operations.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117313 91177308-0d34-0410-b5e6-96231b3b80d8

www/compatibility.html

diff --git a/www/compatibility.html b/www/compatibility.html
index bd22f9a..68fd025 100644
--- a/www/compatibility.html
+++ b/www/compatibility.html
@@ -141,6 +141,16 @@
 architectures respectively.  For these, make sure to use the <arm_neon.h>
 and &lt;altivec.h&gt; headers.</p>
 
+<p>For x86 architectures this <a href="builtins.py">script</a> should help with
+the manual migration process.  It will rewrite your source files in place to
+use the APIs instead of builtin function calls. Just call it like this:</p>
+
+<pre>
+  builtins.py *.c *.h
+</pre>
+
+<p>and it will rewrite all of the .c and .h files in the current directory to
+use the API calls instead of calls like <tt>__builtin_ia32_paddw128</tt>.</p>
 
 <!-- ======================================================================= -->
 <h3 id="lvalue-cast">Lvalue casts</h3>