diff --git a/docs/LangRef.html b/docs/LangRef.html
index c590579..236538d 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -2338,8 +2338,10 @@
    to <a href="#moduleasm"> Module-Level Inline Assembly</a>) through the use of
    a special value.  This value represents the inline assembler as a string
    (containing the instructions to emit), a list of operand constraints (stored
-   as a string), and a flag that indicates whether or not the inline asm
-   expression has side effects.  An example inline assembler expression is:</p>
+   as a string), a flag that indicates whether or not the inline asm
+   expression has side effects, and a flag indicating whether the asm came
+   originally from an asm block.  An example inline assembler
+   expression is:</p>
 
 <div class="doc_code">
 <pre>
@@ -2367,6 +2369,18 @@
 </pre>
 </div>
 
+<p>Inline asms derived from asm blocks are similarly marked with the
+   '<tt>msasm</tt>' keyword:</p>
+
+<div class="doc_code">
+<pre>
+call void asm msasm "eieio", ""()
+</pre>
+</div>
+
+<p>If both keywords appear the '<tt>sideeffect</tt>' keyword must come
+   first.</p>
+
 <p>TODO: The format of the asm and constraints string still need to be
    documented here.  Constraints on what can be done (e.g. duplication, moving,
    etc need to be documented).  This is probably best done by reference to