Update also the generated docs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61118 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CompilerDriver.html b/docs/CompilerDriver.html
index ccd23eb..7d03990 100644
--- a/docs/CompilerDriver.html
+++ b/docs/CompilerDriver.html
@@ -371,6 +371,8 @@
either a parameter or a parameter list) is set by the
user.
Example: <tt class="docutils literal"><span class="pre">(not_empty</span> <span class="pre">"o")</span></tt>.</li>
+<li><tt class="docutils literal"><span class="pre">empty</span></tt> - The opposite of <tt class="docutils literal"><span class="pre">not_empty</span></tt>. Equivalent to <tt class="docutils literal"><span class="pre">(not</span> <span class="pre">(not_empty</span>
+<span class="pre">X))</span></tt>. Provided for convenience.</li>
<li><tt class="docutils literal"><span class="pre">default</span></tt> - Always evaluates to true. Should always be the last
test in the <tt class="docutils literal"><span class="pre">case</span></tt> expression.</li>
<li><tt class="docutils literal"><span class="pre">and</span></tt> - A standard logical combinator that returns true iff all
@@ -462,7 +464,10 @@
<ul class="simple">
<li><tt class="docutils literal"><span class="pre">append_cmd</span></tt> - append a string to the tool invocation
command.
-Example: <tt class="docutils literal"><span class="pre">(case</span> <span class="pre">(switch_on</span> <span class="pre">"pthread"),</span> <span class="pre">(append_cmd</span> <span class="pre">"-lpthread"))</span></tt></li>
+Example: <tt class="docutils literal"><span class="pre">(case</span> <span class="pre">(switch_on</span> <span class="pre">"pthread"),</span> <span class="pre">(append_cmd</span>
+<span class="pre">"-lpthread"))</span></tt></li>
+<li><tt class="docutils literal"><span class="pre">error`</span> <span class="pre">-</span> <span class="pre">exit</span> <span class="pre">with</span> <span class="pre">error.</span>
+<span class="pre">Example:</span> <span class="pre">``(error</span> <span class="pre">"Mixing</span> <span class="pre">-c</span> <span class="pre">and</span> <span class="pre">-S</span> <span class="pre">is</span> <span class="pre">not</span> <span class="pre">allowed!")</span></tt>.</li>
<li><tt class="docutils literal"><span class="pre">forward</span></tt> - forward an option unchanged.
Example: <tt class="docutils literal"><span class="pre">(forward</span> <span class="pre">"Wall")</span></tt>.</li>
<li><tt class="docutils literal"><span class="pre">forward_as</span></tt> - Change the name of an option, but forward the