diff --git a/docs/CommandGuide/llvmc.pod b/docs/CommandGuide/llvmc.pod
index c81031b..1067de2 100644
--- a/docs/CommandGuide/llvmc.pod
+++ b/docs/CommandGuide/llvmc.pod
@@ -81,6 +81,10 @@
 
 =over
 
+=item B<-clang>
+
+Use Clang instead of llvm-gcc.
+
 =item B<-I> I<directory>
 
 Add a directory to the header file search path.  This option can be
@@ -102,6 +106,14 @@
 of native object (or assembly).  If B<-emit-llvm> is given without either B<-c>
 or B<-S> it has no effect.
 
+=item B<-Wa>
+
+Pass options to assembler.
+
+=item B<-Wl>
+
+Pass options to linker.
+
 =back
 
 =head1 EXIT STATUS