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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang goes in infinite loop ?"
href="https://bugs.llvm.org/show_bug.cgi?id=39533">39533</a>
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<th>Summary</th>
<td>clang goes in infinite loop ?
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>7.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>release blocker
</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>
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<th>Reporter</th>
<td>chantry.xavier@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21071" name="attach_21071" title="gdb backtrace">attachment 21071</a> <a href="attachment.cgi?id=21071&action=edit" title="gdb backtrace">[details]</a></span>
gdb backtrace
clang version 5.0.1 and 7.0.0 are no longer able to compile our code with -O or
-O2. It works with -O0 or in ASAN mode.
It worked fine with clang 3.9 and earlier with -O2.
The problem is that I don't own the code, and I don't know how to reduce it to
a test case, could you help me ?
It seems to be stuck in CGPassManager::RunPassOnSCC but afterwards the
backtrace is always different.</pre>
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</p>
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