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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - CGDebugInfo Null dereference with OpenMP array access"
href="https://llvm.org/bugs/show_bug.cgi?id=30639">30639</a>
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<th>Summary</th>
<td>CGDebugInfo Null dereference with OpenMP array access
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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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>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>erich.keane@intel.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Reproducer:
void fobj_offset(int n) {
int i;
int cen[n];
#pragma omp parallel for
for (i=0; i<n; i++) {
cen[i]=i;
}
}
clang -c -fopenmp -g repro.cpp
Running the above results in a crash as a result of CGDebugInfo::CreateType.
On CGDebugInfo.cpp:2184, VAT->getSizeExpr() is NULL, thus EvaluateAsInt causes
a seg fault when it dereferences "this".
This error was introduced in R279445.
I've prepared a patch, so putting under review right after this gets posted.</pre>
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