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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - assertion with DFSan: PHI nodes not grouped at top of basic block!"
href="https://llvm.org/bugs/show_bug.cgi?id=22969">22969</a>
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<th>Summary</th>
<td>assertion with DFSan: PHI nodes not grouped at top of basic block!
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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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>
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<th>Component</th>
<td>new bugs
</td>
</tr>
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<th>Assignee</th>
<td>peter@pcc.me.uk
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kcc@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>int F2();
void F1(int c) {
int curToken;
try {
while (1) try {
curToken = F2();
break;
} catch (int) {
}
if (curToken) F2();
if (c) {
}
} catch (int) {
}
}
clang++ -fsanitize=dataflow z.cc -O2 -c
PHI nodes not grouped at top of basic block!
%1 = phi i16 [ %0, %while.body ]
label %invoke.cont
fatal error: error in backend: Broken function found, compilation aborted!</pre>
</div>
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