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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm-cov: unused methods of template classes are not shown as uncovered"
href="https://bugs.llvm.org/show_bug.cgi?id=42110">42110</a>
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<th>Summary</th>
<td>llvm-cov: unused methods of template classes are not shown as uncovered
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>dennis.felsing@sap.com
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>$ cat x.cpp
template<typename T>
struct C
{
C(T x)
: v(x)
{
}
void foo(T x)
{
v = x;
}
T v;
};
int main()
{
C<int> c(5);
}
$ clang++ -fprofile-instr-generate -fcoverage-mapping x.cpp -o x
$ ./x
$ llvm-profdata merge -sparse default.profraw -o default.profdata
$ llvm-cov show ./x -instr-profile=default.profdata
1| |template<typename T>
2| |struct C
3| |{
4| | C(T x)
5| | : v(x)
6| 1| {
7| 1| }
8| |
9| | void foo(T x)
10| | {
11| | v = x;
12| | }
13| |
14| | T v;
15| |};
16| |
17| |int main()
18| 1|{
19| 1| C<int> c(5);
20| 1|}
I would expect foo to be considered uncovered, but since the method is inside
of a template class it is apparently not generated when it's also not used. If
the class is non-templated foo is shown correctly as being uncovered.</pre>
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