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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] convert-for-testing results in llvm-cov failure"
href="https://bugs.llvm.org/show_bug.cgi?id=51653">51653</a>
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<th>Summary</th>
<td>[llvm-cov] convert-for-testing results in llvm-cov failure
</td>
</tr>
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<th>Product</th>
<td>Runtime Libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>libprofile library
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>keithbsmiley@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>With these files:
```
% cat main.c
int foo() {
return 1;
}
int main() {
return 0;
}
% cat bar.c
int bar() {
return 5;
}
```
Doing this:
```
clang -fprofile-instr-generate -fcoverage-mapping main.c bar.c -o main
LLVM_PROFILE_FILE="main.raw" ./main
llvm-profdata merge main.raw -o main.profdata
llvm-cov convert-for-testing ./main -o ./main.covmapping
llvm-cov report -instr-profile main.profdata ./main.covmapping
```
Results in this failure:
```
error: ./main.covmapping: Failed to load coverage: Malformed coverage data
```</pre>
</div>
</p>
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