[PATCH][wwwdocs] Document power7/vsx support

[Michael Meissner]

I committed the following patch to document the power7/VSX changes that I
checked in last week.

--- htdocs/gcc-4.5/changes.html.~1.23.~	2009-08-03 18:52:28.000000000 -0400
+++ htdocs/gcc-4.5/changes.html	2009-08-03 19:04:05.000000000 -0400
@@ -227,6 +227,17 @@ mep-elf) embedded target.</p>
 
 <h3 id="picochip">picochip</h3>
 
+<h3 id="rs6000">RS/6000 (POWER/PowerPC)</h3>
+  <ul>
+    <li>GCC now supports the Power ISA 2.06, which includes the VSX
+        instructions that add vector 64-bit floating point support, new population
+        count instructions, and conversions between floating point and unsigned types.
+    <li>Support for the power7 processor is now available through the
+        <code>-mcpu=power7</code> and <code>-mtune=power7</code>.
+    <li>GCC will now vectorize loops that contain simple math functions like copysign
+        when generating code for altivec or VSX targets.
+  </ul>
+
 <h2>Documentation improvements</h2>
 
 <h2>Other significant improvements</h2>

-- 
Michael Meissner, IBM
4 Technology Place Drive, MS 2203A, Westford, MA, 01886, USA
meissner@linux.vnet.ibm.com