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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 --- - LLVM bug or sth else?"
href="https://llvm.org/bugs/show_bug.cgi?id=28521">28521</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>LLVM bug or sth else?
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>3.8
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Backend: ARM
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tulipawn@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=16728" name="attach_16728" title="Function dump and full assembly files">attachment 16728</a> <a href="attachment.cgi?id=16728&action=edit" title="Function dump and full assembly files">[details]</a></span>
Function dump and full assembly files
I've got a problem with a piece of LLVM generated code (from Rust) that crashes
with a SIGILL on my ARM Linux system (it's about memory and not unsupported
instructions) and I'm not sure if it's reasonable to blame llvm codegen.
The crashing code comes from using the `-Z orbit` option and it runs fine when
compiled without.
It gets interesting because the crash doesn't reproduce under valgrind or qemu.
I'm attaching assembly dumps of the function from the crashing/working
versions, the main difference in short:
str r0, [r0, r8]!
vs
str r1, [r0, r8]!
Any ideas welcome, thanks!</pre>
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