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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - missing required field 'name' in MDSubprogram metadata for c++ virtual thunk"
href="https://llvm.org/bugs/show_bug.cgi?id=22921">22921</a>
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<th>Summary</th>
<td>missing required field 'name' in MDSubprogram metadata for c++ virtual thunk
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<th>Product</th>
<td>libraries
</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>FreeBSD
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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 assembly language parser
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>khilan.gudka@cl.cam.ac.uk
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Hi
Not sure whether this is a bug in clang or llvm. LLParser thinks that the
'name' field is required for MDSubprogram metadata for virtual C++ thunks, but
this field is not present, and there is an existing clang test that seems to
suggest that the name field is not intended to be present. Here is the test
(tools/clang/test/CodeGenCXX/debug-info-thunk.cpp):
struct A {
virtual void f();
};
struct B {
virtual void f();
};
struct C : A, B {
virtual void f();
};
void C::f() { }
Compile it to a .ll file and then run with opt to get the error.</pre>
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