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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - operator overload resolution does too much work for enum types"
href="http://llvm.org/bugs/show_bug.cgi?id=21280">21280</a>
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<th>Summary</th>
<td>operator overload resolution does too much work for enum types
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>richard-llvm@metafoo.co.uk
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</tr>
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>If the only operands of user-defined type are of enumeration type, and we
didn't find *any* non-builtin candidates, we don't need to bother to form the
complete list of builtin candidates and select one; we can go straight to
picking a built-in candidate. For instance:
enum { a = 0, b = 0 };
enum { c = a + b };
... will perform overload resolution, but doesn't need to (once we notice there
are no viable user-declared overloads of operator+).</pre>
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</p>
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