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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Null pointer dereference warning inside PrintActions1"
href="https://bugs.llvm.org/show_bug.cgi?id=43462">43462</a>
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<th>Summary</th>
<td>Null pointer dereference warning inside PrintActions1
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Driver
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>llvm-dev@redking.me.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>llvm-project\clang\lib\Driver\Driver.cpp
Clang static analyzer is warning that we might be dereferencing a null pointer
to 'const ToolChain *TC' inside PrintActions1:
<a href="https://llvm.org/reports/scan-build/report-Driver.cpp-operator()-13-1.html#EndPath">https://llvm.org/reports/scan-build/report-Driver.cpp-operator()-13-1.html#EndPath</a>
const ToolChain *TC;
....
if (TC)
os << A->getOffloadingKindPrefix();
else
os << "host";
os << " (";
os << TC->getTriple().normalize();
Code coverage indicates that the !TC path is never taken in testsuite, and a
quick inspection of doOnHostDependence and doOnEachDeviceDependence suggests we
shouldn't ever call it with TC == null, so maybe we should just assert that TC
is not null and remove the 'host' case?
<a href="http://lab.llvm.org:8080/coverage/coverage-reports/clang/coverage/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/tools/clang/lib/Driver/Driver.cpp.html">http://lab.llvm.org:8080/coverage/coverage-reports/clang/coverage/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/tools/clang/lib/Driver/Driver.cpp.html</a></pre>
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