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Add blurb on deleting global variables.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37674 91177308-0d34-0410-b5e6-96231b3b80d8
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Tanya Lattner 2007-06-20 18:33:15 +00:00
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docs/ProgrammersManual.html
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@ -106,6 +106,7 @@ use-def chains</a> </li>
<li><a href="#schanges_deleting">Deleting <tt>Instruction</tt>s</a> </li>
<li><a href="#schanges_replacing">Replacing an <tt>Instruction</tt>
with another <tt>Value</tt></a> </li>
<li><a href="#schanges_deletingGV">Deleting <tt>GlobalVariable</tt>s</a> </li>
</ul>
</li>
<!--
@ -1878,6 +1879,31 @@ ReplaceInstWithValue, ReplaceInstWithInst -->
</div>
<!--_______________________________________________________________________-->
<div class="doc_subsubsection">
<a name="schanges_deletingGV">Deleting <tt>GlobalVariable</tt>s</a>
</div>
<div class="doc_text">
<p>Deleting a global variable from a module is similar to deleting an
instruction. First, you must have a pointer to the global variable that you wish
to delete. Second, you must have a pointer to the module the global variable
belongs to. You use the pointer to the module to get its list of global
variables and then use the erase function to remove your global variable.
For example:</p>
<div class="doc_code">
<pre>
<a href="#GlobalVariable">GlobalVariable</a> *GV = .. ;
<a href="#Module">Module</a> *M = GV-&gt;getParent();
M-&gt;getGlobaleList().erase(GV);
</pre>
</div>
</div>
<!-- *********************************************************************** -->
<div class="doc_section">
<a name="advanced">Advanced Topics</a>