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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - PGO: complete constructors that don't call base constructors aren't instrumented"
href="http://bugs.llvm.org/show_bug.cgi?id=31992">31992</a>
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<th>Summary</th>
<td>PGO: complete constructors that don't call base constructors aren't instrumented
</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>All
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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>LLVM Codegen
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>arphaman@gmail.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Complete constructors that don't invoke base constructors of the same class
aren't instrumented by PGO. This is a problem when it comes to virtual
inheritance.
The following sample reproduces this issue:
class Foo
{
public:
Foo()
{
// PGO is there!
}
};
class Bar : virtual public Foo
{
public:
Bar()
{
// No PGO instrumentation emitted
};
};
int main (int argc, char* argv[])
{
Bar b;
}
Right now clang always assumes that the complete constructors call into the
base constructors, which isn't true as seen in this bug, so we have to fix
that.</pre>
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</p>
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