[llvm-commits] CVS: llvm/docs/LangRef.html

[Robert L. Bocchino Jr.]

Changes in directory llvm/docs:

LangRef.html updated: 1.119 -> 1.120
---
Log message:

Added the spec for the new "extractelement" instruction.


---
Diffs of the changes:  (+45 -1)

 LangRef.html |   46 +++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 45 insertions(+), 1 deletion(-)


Index: llvm/docs/LangRef.html
diff -u llvm/docs/LangRef.html:1.119 llvm/docs/LangRef.html:1.120
--- llvm/docs/LangRef.html:1.119        Tue Nov 15 00:07:55 2005
+++ llvm/docs/LangRef.html      Thu Jan  5 11:37:02 2006
@@ -100,6 +100,7 @@
           <li><a href="#i_phi">'<tt>phi</tt>'   Instruction</a></li>
           <li><a href="#i_cast">'<tt>cast .. to</tt>' Instruction</a></li>
           <li><a href="#i_select">'<tt>select</tt>' Instruction</a></li>
+          <li><a href="#i_extractelement">'<tt>extractelement</tt>' 
Instruction</a></li>
           <li><a href="#i_call">'<tt>call</tt>'  Instruction</a></li>
           <li><a href="#i_vaarg">'<tt>vaarg</tt>'  Instruction</a></li>
         </ol>
@@ -2230,8 +2231,51 @@
 </div>
 
 
+<!-- _______________________________________________________________________ 
-->
+<div class="doc_subsubsection">
+   <a name="i_extractelement">'<tt>extractelement</tt>' Instruction</a>
+</div>
+
+<div class="doc_text">
+
+<h5>Syntax:</h5>
+
+<pre>
+  &lt;result&gt; = extractelement &lt;n x &lt;ty&gt;&gt; &lt;val&gt;, uint 
&lt;idx&gt;    <i>; yields &lt;ty&gt;</i>
+</pre>
+
+<h5>Overview:</h5>
+
+<p>
+The '<tt>extractelement</tt>' instruction extracts a single scalar
+element from a vector at a specified index.
+</p>
 
 
+<h5>Arguments:</h5>
+
+<p>
+The first operand of an '<tt>extractelement</tt>' instruction is a
+value of <a href="#t_packed">packed</a> type.  The second operand is
+an index indicating the position from which to extract the element.
+The index may be a variable.</p>
+
+<h5>Semantics:</h5>
+
+<p>
+The result is a scalar of the same type as the element type of
+<tt>val</tt>.  Its value is the value at position <tt>idx</tt> of
+<tt>val</tt>.  If <tt>idx</tt> exceeds the length of <tt>val</tt>, the
+results are undefined.
+</p>
+
+<h5>Example:</h5>
+
+<pre>
+  %result = extractelement &lt;4 x int&gt; %vec, uint 0    <i>; yields int</i>
+</pre>
+</div>
+
 
 <!-- _______________________________________________________________________ 
-->
 <div class="doc_subsubsection">
@@ -3429,7 +3473,7 @@
 
   <a href="mailto:[EMAIL PROTECTED]">Chris Lattner</a><br>
   <a href="http://llvm.cs.uiuc.edu";>The LLVM Compiler Infrastructure</a><br>
-  Last modified: $Date: 2005/11/15 06:07:55 $
+  Last modified: $Date: 2006/01/05 17:37:02 $
 </address>
 </body>
 </html>



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