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@ -1,4 +1,5 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html> <html>
<head> <head>
<title>LLVM Assembly Language Reference Manual</title> <title>LLVM Assembly Language Reference Manual</title>
@ -255,12 +256,12 @@ href="#rw_stroustrup">1</a></sup>.<p> --> </div>
<div class="doc_text"> <div class="doc_text">
<p>The primitive types are the fundemental building blocks of the LLVM <p>The primitive types are the fundemental building blocks of the LLVM
system. The current set of primitive types are as follows:</p> system. The current set of primitive types are as follows:</p>
<p>
<table border="0" align="center"> <table border="0" style="align: center">
<tbody> <tbody>
<tr> <tr>
<td> <td>
<table border="1" cellspacing="0" cellpadding="4" align="center"> <table border="1" cellspacing="0" cellpadding="4" style="align: center">
<tbody> <tbody>
<tr> <tr>
<td><tt>void</tt></td> <td><tt>void</tt></td>
@ -294,7 +295,7 @@ system. The current set of primitive types are as follows:</p>
</table> </table>
</td> </td>
<td valign="top"> <td valign="top">
<table border="1" cellspacing="0" cellpadding="4" align="center&quot;"> <table border="1" cellspacing="0" cellpadding="4">
<tbody> <tbody>
<tr> <tr>
<td><tt>bool</tt></td> <td><tt>bool</tt></td>
@ -326,7 +327,7 @@ system. The current set of primitive types are as follows:</p>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</p>
</div> </div>
<!-- _______________________________________________________________________ --> <!-- _______________________________________________________________________ -->
<div class="doc_subsubsection"> <a name="t_classifications">Type <div class="doc_subsubsection"> <a name="t_classifications">Type
@ -334,8 +335,8 @@ Classifications</a> </div>
<div class="doc_text"> <div class="doc_text">
<p>These different primitive types fall into a few useful <p>These different primitive types fall into a few useful
classifications:</p> classifications:</p>
<p>
<table border="1" cellspacing="0" cellpadding="4" align="center"> <table border="1" cellspacing="0" cellpadding="4">
<tbody> <tbody>
<tr> <tr>
<td><a name="t_signed">signed</a></td> <td><a name="t_signed">signed</a></td>
@ -364,7 +365,7 @@ uint, int, ulong, long, float, double, <a href="#t_pointer">pointer</a></tt></td
</tr> </tr>
</tbody> </tbody>
</table> </table>
</p>
<p>The <a href="#t_firstclass">first class</a> types are perhaps the <p>The <a href="#t_firstclass">first class</a> types are perhaps the
most important. Values of these types are the only ones which can be most important. Values of these types are the only ones which can be
produced by instructions, passed as arguments, or used as operands to produced by instructions, passed as arguments, or used as operands to
@ -396,7 +397,7 @@ be any type with a size.</p>
<tt>[40 x uint]</tt>: Array of 40 unsigned integer values.</p> <tt>[40 x uint]</tt>: Array of 40 unsigned integer values.</p>
<p> </p> <p> </p>
<p>Here are some examples of multidimensional arrays:</p> <p>Here are some examples of multidimensional arrays:</p>
<p>
<table border="0" cellpadding="0" cellspacing="0"> <table border="0" cellpadding="0" cellspacing="0">
<tbody> <tbody>
<tr> <tr>
@ -413,7 +414,7 @@ be any type with a size.</p>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</p>
</div> </div>
<!-- _______________________________________________________________________ --> <!-- _______________________________________________________________________ -->
<div class="doc_subsubsection"> <a name="t_function">Function Type</a> </div> <div class="doc_subsubsection"> <a name="t_function">Function Type</a> </div>
@ -435,7 +436,7 @@ which indicates that the function takes a variable number of arguments.
Variable argument functions can access their arguments with the <a Variable argument functions can access their arguments with the <a
href="#int_varargs">variable argument handling intrinsic</a> functions.</p> href="#int_varargs">variable argument handling intrinsic</a> functions.</p>
<h5>Examples:</h5> <h5>Examples:</h5>
<p>
<table border="0" cellpadding="0" cellspacing="0"> <table border="0" cellpadding="0" cellspacing="0">
<tbody> <tbody>
<tr> <tr>
@ -457,7 +458,7 @@ in LLVM.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</p>
</div> </div>
<!-- _______________________________________________________________________ --> <!-- _______________________________________________________________________ -->
<div class="doc_subsubsection"> <a name="t_struct">Structure Type</a> </div> <div class="doc_subsubsection"> <a name="t_struct">Structure Type</a> </div>
@ -474,7 +475,7 @@ instruction.</p>
<h5>Syntax:</h5> <h5>Syntax:</h5>
<pre> { &lt;type list&gt; }<br></pre> <pre> { &lt;type list&gt; }<br></pre>
<h5>Examples:</h5> <h5>Examples:</h5>
<p>
<table border="0" cellpadding="0" cellspacing="0"> <table border="0" cellpadding="0" cellspacing="0">
<tbody> <tbody>
<tr> <tr>
@ -490,7 +491,7 @@ an <tt>int</tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</p>
</div> </div>
<!-- _______________________________________________________________________ --> <!-- _______________________________________________________________________ -->
<div class="doc_subsubsection"> <a name="t_pointer">Pointer Type</a> </div> <div class="doc_subsubsection"> <a name="t_pointer">Pointer Type</a> </div>
@ -501,7 +502,7 @@ reference to another object, which must live in memory.</p>
<h5>Syntax:</h5> <h5>Syntax:</h5>
<pre> &lt;type&gt; *<br></pre> <pre> &lt;type&gt; *<br></pre>
<h5>Examples:</h5> <h5>Examples:</h5>
<p>
<table border="0" cellpadding="0" cellspacing="0"> <table border="0" cellpadding="0" cellspacing="0">
<tbody> <tbody>
<tr> <tr>
@ -517,7 +518,7 @@ an <tt>int</tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</p>
</div> </div>
<!-- _______________________________________________________________________ --><!-- <!-- _______________________________________________________________________ --><!--
<div class="doc_subsubsection"> <div class="doc_subsubsection">
@ -572,7 +573,7 @@ this case, a pointer to an array of char, and a pointer to a function),
and have one of the following linkage types:</a> and have one of the following linkage types:</a>
<p> </p> <p> </p>
<dl> <dl>
<a name="linkage_internal"> <dt><tt><b>internal</b></tt> </dt> <dt><tt><b><a name="linkage_internal">internal</a></b></tt> </dt>
<dd>Global values with internal linkage are only directly accessible <dd>Global values with internal linkage are only directly accessible
by objects in the current module. In particular, linking code into a by objects in the current module. In particular, linking code into a
module with an internal global value may cause the internal to be module with an internal global value may cause the internal to be
@ -582,7 +583,7 @@ corresponds to the notion of the '<tt>static</tt>' keyword in C, or the
idea of "anonymous namespaces" in C++. idea of "anonymous namespaces" in C++.
<p> </p> <p> </p>
</dd> </dd>
</a><a name="linkage_linkonce"> <dt><tt><b>linkonce</b></tt>: </dt> <dt><tt><b><a name="linkage_linkonce">linkonce</a></b></tt>: </dt>
<dd>"<tt>linkonce</tt>" linkage is similar to <tt>internal</tt> <dd>"<tt>linkonce</tt>" linkage is similar to <tt>internal</tt>
linkage, with the twist that linking together two modules defining the linkage, with the twist that linking together two modules defining the
same <tt>linkonce</tt> globals will cause one of the globals to be same <tt>linkonce</tt> globals will cause one of the globals to be
@ -590,14 +591,14 @@ discarded. This is typically used to implement inline functions.
Unreferenced <tt>linkonce</tt> globals are allowed to be discarded. Unreferenced <tt>linkonce</tt> globals are allowed to be discarded.
<p> </p> <p> </p>
</dd> </dd>
</a><a name="linkage_weak"> <dt><tt><b>weak</b></tt>: </dt> <dt><tt><b><a name="linkage_weak">weak</a></b></tt>: </dt>
<dd>"<tt>weak</tt>" linkage is exactly the same as <tt>linkonce</tt> <dd>"<tt>weak</tt>" linkage is exactly the same as <tt>linkonce</tt>
linkage, except that unreferenced <tt>weak</tt> globals may not be linkage, except that unreferenced <tt>weak</tt> globals may not be
discarded. This is used to implement constructs in C such as "<tt>int discarded. This is used to implement constructs in C such as "<tt>int
X;</tt>" at global scope. X;</tt>" at global scope.
<p> </p> <p> </p>
</dd> </dd>
</a><a name="linkage_appending"> <dt><tt><b>appending</b></tt>: </dt> <dt><tt><b><a name="linkage_appending">appending</a></b></tt>: </dt>
<dd>"<tt>appending</tt>" linkage may only be applied to global <dd>"<tt>appending</tt>" linkage may only be applied to global
variables of pointer to array type. When two global variables with variables of pointer to array type. When two global variables with
appending linkage are linked together, the two global arrays are appending linkage are linked together, the two global arrays are
@ -606,13 +607,12 @@ the system linker append together "sections" with identical names when
.o files are linked. .o files are linked.
<p> </p> <p> </p>
</dd> </dd>
</a><a name="linkage_external"> <dt><tt><b>externally visible</b></tt>:</dt> <dt><tt><b><a name="linkage_external">externally visible</a></b></tt>:</dt>
<dd>If none of the above identifiers are used, the global is <dd>If none of the above identifiers are used, the global is
externally visible, meaning that it participates in linkage and can be externally visible, meaning that it participates in linkage and can be
used to resolve external symbol references. used to resolve external symbol references.
<p> </p> <p> </p>
</dd> </dd>
</a>
</dl> </dl>
<p> </p> <p> </p>
<p><a name="linkage_external">For example, since the "<tt>.LC0</tt>" <p><a name="linkage_external">For example, since the "<tt>.LC0</tt>"
@ -1066,7 +1066,7 @@ identical types.</p>
<h5>Semantics:</h5> <h5>Semantics:</h5>
<p>The truth table used for the '<tt>and</tt>' instruction is:</p> <p>The truth table used for the '<tt>and</tt>' instruction is:</p>
<p> </p> <p> </p>
<center> <div style="align: center">
<table border="1" cellspacing="0" cellpadding="4"> <table border="1" cellspacing="0" cellpadding="4">
<tbody> <tbody>
<tr> <tr>
@ -1096,7 +1096,7 @@ identical types.</p>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</center> </div>
<h5>Example:</h5> <h5>Example:</h5>
<pre> &lt;result&gt; = and int 4, %var <i>; yields {int}:result = 4 &amp; %var</i> <pre> &lt;result&gt; = and int 4, %var <i>; yields {int}:result = 4 &amp; %var</i>
&lt;result&gt; = and int 15, 40 <i>; yields {int}:result = 8</i> &lt;result&gt; = and int 15, 40 <i>; yields {int}:result = 8</i>
@ -1119,7 +1119,7 @@ identical types.</p>
<h5>Semantics:</h5> <h5>Semantics:</h5>
<p>The truth table used for the '<tt>or</tt>' instruction is:</p> <p>The truth table used for the '<tt>or</tt>' instruction is:</p>
<p> </p> <p> </p>
<center> <div style="align: center">
<table border="1" cellspacing="0" cellpadding="4"> <table border="1" cellspacing="0" cellpadding="4">
<tbody> <tbody>
<tr> <tr>
@ -1149,7 +1149,7 @@ identical types.</p>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</center> </div>
<h5>Example:</h5> <h5>Example:</h5>
<pre> &lt;result&gt; = or int 4, %var <i>; yields {int}:result = 4 | %var</i> <pre> &lt;result&gt; = or int 4, %var <i>; yields {int}:result = 4 | %var</i>
&lt;result&gt; = or int 15, 40 <i>; yields {int}:result = 47</i> &lt;result&gt; = or int 15, 40 <i>; yields {int}:result = 47</i>
@ -1174,7 +1174,7 @@ identical types.</p>
<h5>Semantics:</h5> <h5>Semantics:</h5>
<p>The truth table used for the '<tt>xor</tt>' instruction is:</p> <p>The truth table used for the '<tt>xor</tt>' instruction is:</p>
<p> </p> <p> </p>
<center> <div style="align: center">
<table border="1" cellspacing="0" cellpadding="4"> <table border="1" cellspacing="0" cellpadding="4">
<tbody> <tbody>
<tr> <tr>
@ -1204,7 +1204,7 @@ identical types.</p>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</center> </div>
<p> </p> <p> </p>
<h5>Example:</h5> <h5>Example:</h5>
<pre> &lt;result&gt; = xor int 4, %var <i>; yields {int}:result = 4 ^ %var</i> <pre> &lt;result&gt; = xor int 4, %var <i>; yields {int}:result = 4 ^ %var</i>
@ -2050,9 +2050,15 @@ Debugging</a> document.
<!-- *********************************************************************** --> <!-- *********************************************************************** -->
<hr> <hr>
<div class="doc_footer"> <address>
<address><a href="mailto:sabre@nondot.org">Chris Lattner</a></address> <a href="http://jigsaw.w3.org/css-validator/check/referer"><img
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<a href="mailto:sabre@nondot.org">Chris Lattner</a><br>
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