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HTML 4.01 Strict compliance.
llvm-svn: 12050
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Misha Brukman
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@ -1,4 +1,5 @@
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
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"http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>LLVM Assembly Language Reference Manual</title>
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@ -255,12 +256,12 @@ href="#rw_stroustrup">1</a></sup>.<p> --> </div>
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<div class="doc_text">
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<p>The primitive types are the fundemental building blocks of the LLVM
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system. The current set of primitive types are as follows:</p>
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<p>
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<table border="0" align="center">
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<table border="0" style="align: center">
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<tbody>
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<tr>
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<td>
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<table border="1" cellspacing="0" cellpadding="4" align="center">
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<table border="1" cellspacing="0" cellpadding="4" style="align: center">
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<tbody>
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<tr>
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<td><tt>void</tt></td>
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@ -294,7 +295,7 @@ system. The current set of primitive types are as follows:</p>
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</table>
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</td>
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<td valign="top">
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<table border="1" cellspacing="0" cellpadding="4" align="center"">
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<table border="1" cellspacing="0" cellpadding="4">
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<tbody>
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<tr>
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<td><tt>bool</tt></td>
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@ -326,7 +327,7 @@ system. The current set of primitive types are as follows:</p>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<!-- _______________________________________________________________________ -->
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<div class="doc_subsubsection"> <a name="t_classifications">Type
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@ -334,8 +335,8 @@ Classifications</a> </div>
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<div class="doc_text">
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<p>These different primitive types fall into a few useful
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classifications:</p>
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<p>
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<table border="1" cellspacing="0" cellpadding="4" align="center">
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<table border="1" cellspacing="0" cellpadding="4">
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<tbody>
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<tr>
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<td><a name="t_signed">signed</a></td>
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@ -364,7 +365,7 @@ uint, int, ulong, long, float, double, <a href="#t_pointer">pointer</a></tt></td
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</tr>
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</tbody>
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</table>
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</p>
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<p>The <a href="#t_firstclass">first class</a> types are perhaps the
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most important. Values of these types are the only ones which can be
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produced by instructions, passed as arguments, or used as operands to
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@ -396,7 +397,7 @@ be any type with a size.</p>
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<tt>[40 x uint]</tt>: Array of 40 unsigned integer values.</p>
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<p> </p>
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<p>Here are some examples of multidimensional arrays:</p>
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<p>
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<table border="0" cellpadding="0" cellspacing="0">
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<tbody>
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<tr>
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@ -413,7 +414,7 @@ be any type with a size.</p>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<!-- _______________________________________________________________________ -->
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<div class="doc_subsubsection"> <a name="t_function">Function Type</a> </div>
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@ -435,7 +436,7 @@ which indicates that the function takes a variable number of arguments.
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Variable argument functions can access their arguments with the <a
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href="#int_varargs">variable argument handling intrinsic</a> functions.</p>
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<h5>Examples:</h5>
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<p>
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<table border="0" cellpadding="0" cellspacing="0">
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<tbody>
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<tr>
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@ -457,7 +458,7 @@ in LLVM.</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<!-- _______________________________________________________________________ -->
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<div class="doc_subsubsection"> <a name="t_struct">Structure Type</a> </div>
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@ -474,7 +475,7 @@ instruction.</p>
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<h5>Syntax:</h5>
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<pre> { <type list> }<br></pre>
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<h5>Examples:</h5>
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<p>
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<table border="0" cellpadding="0" cellspacing="0">
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<tbody>
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<tr>
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@ -490,7 +491,7 @@ an <tt>int</tt>.</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<!-- _______________________________________________________________________ -->
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<div class="doc_subsubsection"> <a name="t_pointer">Pointer Type</a> </div>
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@ -501,7 +502,7 @@ reference to another object, which must live in memory.</p>
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<h5>Syntax:</h5>
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<pre> <type> *<br></pre>
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<h5>Examples:</h5>
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<p>
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<table border="0" cellpadding="0" cellspacing="0">
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<tbody>
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<tr>
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@ -517,7 +518,7 @@ an <tt>int</tt>.</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<!-- _______________________________________________________________________ --><!--
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<div class="doc_subsubsection">
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@ -572,7 +573,7 @@ this case, a pointer to an array of char, and a pointer to a function),
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and have one of the following linkage types:</a>
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<p> </p>
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<dl>
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<a name="linkage_internal"> <dt><tt><b>internal</b></tt> </dt>
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<dt><tt><b><a name="linkage_internal">internal</a></b></tt> </dt>
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<dd>Global values with internal linkage are only directly accessible
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by objects in the current module. In particular, linking code into a
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module with an internal global value may cause the internal to be
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@ -582,7 +583,7 @@ corresponds to the notion of the '<tt>static</tt>' keyword in C, or the
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idea of "anonymous namespaces" in C++.
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<p> </p>
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</dd>
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</a><a name="linkage_linkonce"> <dt><tt><b>linkonce</b></tt>: </dt>
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<dt><tt><b><a name="linkage_linkonce">linkonce</a></b></tt>: </dt>
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<dd>"<tt>linkonce</tt>" linkage is similar to <tt>internal</tt>
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linkage, with the twist that linking together two modules defining the
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same <tt>linkonce</tt> globals will cause one of the globals to be
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@ -590,14 +591,14 @@ discarded. This is typically used to implement inline functions.
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Unreferenced <tt>linkonce</tt> globals are allowed to be discarded.
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<p> </p>
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</dd>
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</a><a name="linkage_weak"> <dt><tt><b>weak</b></tt>: </dt>
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<dt><tt><b><a name="linkage_weak">weak</a></b></tt>: </dt>
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<dd>"<tt>weak</tt>" linkage is exactly the same as <tt>linkonce</tt>
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linkage, except that unreferenced <tt>weak</tt> globals may not be
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discarded. This is used to implement constructs in C such as "<tt>int
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X;</tt>" at global scope.
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<p> </p>
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</dd>
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</a><a name="linkage_appending"> <dt><tt><b>appending</b></tt>: </dt>
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<dt><tt><b><a name="linkage_appending">appending</a></b></tt>: </dt>
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<dd>"<tt>appending</tt>" linkage may only be applied to global
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variables of pointer to array type. When two global variables with
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appending linkage are linked together, the two global arrays are
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@ -606,13 +607,12 @@ the system linker append together "sections" with identical names when
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.o files are linked.
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<p> </p>
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</dd>
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</a><a name="linkage_external"> <dt><tt><b>externally visible</b></tt>:</dt>
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<dt><tt><b><a name="linkage_external">externally visible</a></b></tt>:</dt>
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<dd>If none of the above identifiers are used, the global is
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externally visible, meaning that it participates in linkage and can be
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used to resolve external symbol references.
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<p> </p>
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</dd>
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</a>
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</dl>
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<p> </p>
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<p><a name="linkage_external">For example, since the "<tt>.LC0</tt>"
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@ -1066,7 +1066,7 @@ identical types.</p>
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<h5>Semantics:</h5>
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<p>The truth table used for the '<tt>and</tt>' instruction is:</p>
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<p> </p>
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<center>
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<div style="align: center">
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<table border="1" cellspacing="0" cellpadding="4">
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<tbody>
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<tr>
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@ -1096,7 +1096,7 @@ identical types.</p>
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</tr>
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</tbody>
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</table>
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</center>
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</div>
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<h5>Example:</h5>
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<pre> <result> = and int 4, %var <i>; yields {int}:result = 4 & %var</i>
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<result> = and int 15, 40 <i>; yields {int}:result = 8</i>
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@ -1119,7 +1119,7 @@ identical types.</p>
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<h5>Semantics:</h5>
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<p>The truth table used for the '<tt>or</tt>' instruction is:</p>
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<p> </p>
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<center>
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<div style="align: center">
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<table border="1" cellspacing="0" cellpadding="4">
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<tbody>
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<tr>
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@ -1149,7 +1149,7 @@ identical types.</p>
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</tr>
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</tbody>
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</table>
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</center>
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</div>
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<h5>Example:</h5>
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<pre> <result> = or int 4, %var <i>; yields {int}:result = 4 | %var</i>
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<result> = or int 15, 40 <i>; yields {int}:result = 47</i>
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@ -1174,7 +1174,7 @@ identical types.</p>
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<h5>Semantics:</h5>
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<p>The truth table used for the '<tt>xor</tt>' instruction is:</p>
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<p> </p>
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<center>
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<div style="align: center">
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<table border="1" cellspacing="0" cellpadding="4">
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<tbody>
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<tr>
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@ -1204,7 +1204,7 @@ identical types.</p>
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</tr>
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</tbody>
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</table>
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</center>
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</div>
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<p> </p>
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<h5>Example:</h5>
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<pre> <result> = xor int 4, %var <i>; yields {int}:result = 4 ^ %var</i>
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@ -2050,9 +2050,15 @@ Debugging</a> document.
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<!-- *********************************************************************** -->
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<hr>
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<div class="doc_footer">
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<address><a href="mailto:sabre@nondot.org">Chris Lattner</a></address>
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<a href="http://llvm.cs.uiuc.edu">The LLVM Compiler Infrastructure</a> <br>
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Last modified: $Date$ </div>
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<address>
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<a href="http://jigsaw.w3.org/css-validator/check/referer"><img
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src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!"></a>
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<a href="http://validator.w3.org/check/referer"><img
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src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!" /></a>
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<a href="mailto:sabre@nondot.org">Chris Lattner</a><br>
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<a href="http://llvm.cs.uiuc.edu">The LLVM Compiler Infrastructure</a><br>
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Last modified: $Date$
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</address>
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</body>
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</html>
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