Added blurb for CellSPU progress

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46968 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 6da2ded..ec6ba19 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -124,8 +124,13 @@
 <p>LLVM 2.2 includes several major new capabilities:</p>
 
 <ul>
-<li>Scott Michel contributed an SPU backend, which generates code for the
-vector coprocessors on the Cell processor.  (Status?)</li>
+<li>A research team led by Scott Michel in the Computer Systems Research
+Department at The Aerospace Corporation contributed the CellSPU backend, which
+generates code for the vector coprocessors on the Sony/Toshiba/IBM Cell BE
+processor. llvm-gcc 4.2 supports CellSPU as a 'configure' target and progress
+is being made so that libgcc.a compiles cleanly. Notable pieces still in
+development include full 64-bit integer and full double precision floating
+point support.</li>
 
 <li>Anton and Duncan significantly improved llvm-gcc 4.2 support for the GCC Ada
 (GNAT) and Fortran (gfortran) front-ends.  These front-ends should still be considered