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

[Reid Spencer]

Changes in directory llvm/docs:

LangRef.html updated: 1.158 -> 1.159
---
Log message:

For PR950: http://llvm.org/PR950 :
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.


---
Diffs of the changes:  (+59 -13)

 LangRef.html |   72 ++++++++++++++++++++++++++++++++++++++++++++++++-----------
 1 files changed, 59 insertions(+), 13 deletions(-)


Index: llvm/docs/LangRef.html
diff -u llvm/docs/LangRef.html:1.158 llvm/docs/LangRef.html:1.159
--- llvm/docs/LangRef.html:1.158	Sun Oct 15 15:05:59 2006
+++ llvm/docs/LangRef.html	Thu Oct 26 01:15:43 2006
@@ -77,7 +77,9 @@
           <li><a href="#i_add">'<tt>add</tt>' Instruction</a></li>
           <li><a href="#i_sub">'<tt>sub</tt>' Instruction</a></li>
           <li><a href="#i_mul">'<tt>mul</tt>' Instruction</a></li>
-          <li><a href="#i_div">'<tt>div</tt>' Instruction</a></li>
+          <li><a href="#i_udiv">'<tt>udiv</tt>' Instruction</a></li>
+          <li><a href="#i_sdiv">'<tt>sdiv</tt>' Instruction</a></li>
+          <li><a href="#i_fdiv">'<tt>fdiv</tt>' Instruction</a></li>
           <li><a href="#i_rem">'<tt>rem</tt>' Instruction</a></li>
           <li><a href="#i_setcc">'<tt>set<i>cc</i></tt>' Instructions</a></li>
         </ol>
@@ -1630,26 +1632,70 @@
 </pre>
 </div>
 <!-- _______________________________________________________________________ -->
-<div class="doc_subsubsection"> <a name="i_div">'<tt>div</tt>'
+<div class="doc_subsubsection"> <a name="i_udiv">'<tt>udiv</tt>' Instruction
+</a></div>
+<div class="doc_text">
+<h5>Syntax:</h5>
+<pre>  <result> = udiv <ty> <var1>, <var2>   <i>; yields {ty}:result</i>
+</pre>
+<h5>Overview:</h5>
+<p>The '<tt>udiv</tt>' instruction returns the quotient of its two
+operands.</p>
+<h5>Arguments:</h5>
+<p>The two arguments to the '<tt>udiv</tt>' instruction must be 
+<a href="#t_integer">integer</a> values. Both arguments must have identical 
+types. This instruction can also take <a href="#t_packed">packed</a> versions 
+of the values in which case the elements must be integers.</p>
+<h5>Semantics:</h5>
+<p>The value produced is the unsigned integer quotient of the two operands. This
+instruction always performs an unsigned division operation, regardless of 
+whether the arguments are unsigned or not.</p>
+<h5>Example:</h5>
+<pre>  <result> = udiv uint 4, %var          <i>; yields {uint}:result = 4 / %var</i>
+</pre>
+</div>
+<!-- _______________________________________________________________________ -->
+<div class="doc_subsubsection"> <a name="i_sdiv">'<tt>sdiv</tt>' Instruction
+</a> </div>
+<div class="doc_text">
+<h5>Syntax:</h5>
+<pre>  <result> = sdiv <ty> <var1>, <var2>   <i>; yields {ty}:result</i>
+</pre>
+<h5>Overview:</h5>
+<p>The '<tt>sdiv</tt>' instruction returns the quotient of its two
+operands.</p>
+<h5>Arguments:</h5>
+<p>The two arguments to the '<tt>sdiv</tt>' instruction must be
+<a href="#t_integer">integer</a> values.  Both arguments must have identical 
+types. This instruction can also take <a href="#t_packed">packed</a> versions 
+of the values in which case the elements must be integers.</p>
+<h5>Semantics:</h5>
+<p>The value produced is the signed integer quotient of the two operands. This
+instruction always performs a signed division operation, regardless of whether
+the arguments are signed or not.</p>
+<h5>Example:</h5>
+<pre>  <result> = sdiv int 4, %var          <i>; yields {int}:result = 4 / %var</i>
+</pre>
+</div>
+<!-- _______________________________________________________________________ -->
+<div class="doc_subsubsection"> <a name="i_fdiv">'<tt>fdiv</tt>'
 Instruction</a> </div>
 <div class="doc_text">
 <h5>Syntax:</h5>
-<pre>  <result> = div <ty> <var1>, <var2>   <i>; yields {ty}:result</i>
+<pre>  <result> = fdiv <ty> <var1>, <var2>   <i>; yields {ty}:result</i>
 </pre>
 <h5>Overview:</h5>
-<p>The '<tt>div</tt>' instruction returns the quotient of its two
+<p>The '<tt>fdiv</tt>' instruction returns the quotient of its two
 operands.</p>
 <h5>Arguments:</h5>
-<p>The two arguments to the '<tt>div</tt>' instruction must be either <a
- href="#t_integer">integer</a> or <a href="#t_floating">floating point</a>
-values. 
-This instruction can also take <a href="#t_packed">packed</a> versions of the values.
-Both arguments must have identical types.</p>
+<p>The two arguments to the '<tt>div</tt>' instruction must be
+<a href="#t_floating">floating point</a> values.  Both arguments must have
+identical types.  This instruction can also take <a href="#t_packed">packed</a>
+versions of the values in which case the elements must be floating point.</p>
 <h5>Semantics:</h5>
-<p>The value produced is the integer or floating point quotient of the
-two operands.</p>
+<p>The value produced is the floating point quotient of the two operands.</p>
 <h5>Example:</h5>
-<pre>  <result> = div int 4, %var          <i>; yields {int}:result = 4 / %var</i>
+<pre>  <result> = fdiv float 4.0, %var          <i>; yields {float}:result = 4.0 / %var</i>
 </pre>
 </div>
 <!-- _______________________________________________________________________ -->
@@ -3910,7 +3956,7 @@
 
   <a href="mailto:sabre at nondot.org">Chris Lattner</a><br>
   <a href="http://llvm.org">The LLVM Compiler Infrastructure</a><br>
-  Last modified: $Date: 2006/10/15 20:05:59 $
+  Last modified: $Date: 2006/10/26 06:15:43 $
 </address>
 </body>
 </html>