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diff --git a/docs/LangRef.html b/docs/LangRef.html index dde18bd711..2a1d3a1bda 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -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 @@ value argument; otherwise, it returns the second value argument. </div> +<!-- _______________________________________________________________________ --> +<div class="doc_subsubsection"> + <a name="i_extractelement">'<tt>extractelement</tt>' Instruction</a> +</div> + +<div class="doc_text"> + +<h5>Syntax:</h5> + +<pre> + <result> = extractelement <n x <ty>> <val>, uint <idx> <i>; yields <ty></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 <4 x int> %vec, uint 0 <i>; yields int</i> +</pre> +</div> + <!-- _______________________________________________________________________ --> <div class="doc_subsubsection"> |