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Update AnalysisGroup documentation to document restriction that allows 

only one ImmutablePass in a group.

llvm-svn: 37675
This commit is contained in:
Devang Patel 2007-06-20 18:51:14 +00:00
parent 1a08cf311e
commit eeff910244
1 changed files with 3 additions and 2 deletions
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5
llvm/docs/WritingAnLLVMPass.html
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@ -1308,8 +1308,9 @@ no problem.</p>
<p>Here we show how the default implementation is specified (using the extra
argument to the <tt>RegisterAnalysisGroup</tt> template). There must be exactly
one default implementation available at all times for an Analysis Group to be
used. Here we declare that the <tt><a
href="http://llvm.org/doxygen/structBasicAliasAnalysis.html">BasicAliasAnalysis</a></tt>
used. Only default implementation can derive from <tt>ImmutablePass</tt>.
Here we declare that the
<tt><a href="http://llvm.org/doxygen/structBasicAliasAnalysis.html">BasicAliasAnalysis</a></tt>
pass is the default implementation for the interface.</p>
</div>