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Rename getAnalysisToUpdate to getAnalysisIfAvailable.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63198 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
2009-01-28 13:14:17 +00:00
parent e02f724880
commit 1465d61bdd
29 changed files with 87 additions and 85 deletions
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12
docs/WritingAnLLVMPass.html
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@@ -78,7 +78,8 @@
<li><a href="#AU::addRequired">The <tt>AnalysisUsage::addRequired&lt;&gt;</tt> and <tt>AnalysisUsage::addRequiredTransitive&lt;&gt;</tt> methods</a></li>
<li><a href="#AU::addPreserved">The <tt>AnalysisUsage::addPreserved&lt;&gt;</tt> method</a></li>
<li><a href="#AU::examples">Example implementations of <tt>getAnalysisUsage</tt></a></li>
<li><a href="#getAnalysis">The <tt>getAnalysis&lt;&gt;</tt> and <tt>getAnalysisToUpdate&lt;&gt;</tt> methods</a></li>
<li><a href="#getAnalysis">The <tt>getAnalysis&lt;&gt;</tt> and
<tt>getAnalysisIfAvailable&lt;&gt;</tt> methods</a></li>
</ul></li>
<li><a href="#analysisgroup">Implementing Analysis Groups</a>
<ul>
@@ -1131,7 +1132,8 @@ the fact that it hacks on the CFG.
<!-- _______________________________________________________________________ -->
<div class="doc_subsubsection">
<a name="getAnalysis">The <tt>getAnalysis&lt;&gt;</tt> and <tt>getAnalysisToUpdate&lt;&gt;</tt> methods</a>
<a name="getAnalysis">The <tt>getAnalysis&lt;&gt;</tt> and
<tt>getAnalysisIfAvailable&lt;&gt;</tt> methods</a>
</div>
<div class="doc_text">
@@ -1173,12 +1175,12 @@ before returning a reference to the desired pass.</p>
<p>
If your pass is capable of updating analyses if they exist (e.g.,
<tt>BreakCriticalEdges</tt>, as described above), you can use the
<tt>getAnalysisToUpdate</tt> method, which returns a pointer to the analysis if
it is active. For example:</p>
<tt>getAnalysisIfAvailable</tt> method, which returns a pointer to the analysis
if it is active. For example:</p>
<div class="doc_code"><pre>
...
if (DominatorSet *DS = getAnalysisToUpdate&lt;DominatorSet&gt;()) {
if (DominatorSet *DS = getAnalysisIfAvailable&lt;DominatorSet&gt;()) {
<i>// A DominatorSet is active. This code will update it.</i>
}
...