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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [PPC] Presence of pointer comparison leads to miss-compilation."
href="https://bugs.llvm.org/show_bug.cgi?id=48388">48388</a>
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<th>Summary</th>
<td>[PPC] Presence of pointer comparison leads to miss-compilation.
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>11.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Backend: PowerPC
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>v.churavy@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, nemanja.i.ibm@gmail.com
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24235" name="attach_24235" title="division with upwards rounding">attachment 24235</a> <a href="attachment.cgi?id=24235&action=edit" title="division with upwards rounding">[details]</a></span>
division with upwards rounding
On x86_64:
```
lli div.ll
echo $?
251 # two's complement for -5
```
On PPC64LE
```
lli div.ll
echo $?
252 # two's complement for -4
```
The code implements signed integer division with upwards rounding, downstream's
bug is <a href="https://github.com/JuliaLang/julia/issues/38641#issuecomment-738826299">https://github.com/JuliaLang/julia/issues/38641#issuecomment-738826299</a>
This particular instance seems to happen due to the pointer comparison. This
was tested against LLVM 11.</pre>
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