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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - ARM/Windows calls to unavailable function __moddi3"
href="https://llvm.org/bugs/show_bug.cgi?id=30378">30378</a>
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</tr>
<tr>
<th>Summary</th>
<td>ARM/Windows calls to unavailable function __moddi3
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>
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<th>Component</th>
<td>Backend: ARM
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>martin@martin.st
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17260" name="attach_17260" title="Sample input data">attachment 17260</a> <a href="attachment.cgi?id=17260&action=edit" title="Sample input data">[details]</a></span>
Sample input data
When targeting ARM/Windows, 32 bit remainder operations get mapped to __rt_sdiv
+ mls properly, but 64 bit operations end up as calls to __moddi3, which
doesn't exist in the MSVC builtins library.
The attached sample data shows how it behaves for these operations (built with
"llc -mtriple thumbv7-windows rem64.ll -o -").
One attempt at solving this has been made in <a href="https://reviews.llvm.org/D24076">https://reviews.llvm.org/D24076</a>.</pre>
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