Objective-C runtime, or version 1.6 or later of the GNUstep Objective-C
runtime version.</li>
+ <li>Improved support for OpenCL C, including the <tt>vec_step</tt> operator,
+ address space qualifiers, improved vector literal support and code
+ generation support for the <a href="#PTX">PTX target</a>.</li>
+
<li>Implemented a number of optimizations in <tt>libclang</tt>, the Clang C
interface, to improve the performance of code completion and the mapping
from source locations to abstract syntax tree nodes.</li>