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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ARM32] Implement 128-bit arithmetic in compiler-rt"
href="https://bugs.llvm.org/show_bug.cgi?id=50636">50636</a>
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<th>Summary</th>
<td>[ARM32] Implement 128-bit arithmetic in compiler-rt
</td>
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<th>Product</th>
<td>Runtime Libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>other
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>rengolin@gmail.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>As seen in <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - __int128_t multiply with -fsanitize=undefined fails to link (undefined reference to __muloti4)"
href="show_bug.cgi?id=16404">bug #16404</a>, 128-bit arithmetic isn't implemented for ARM32.
I have seen implementations in the past but that were rejected because they
didn't apply cleanly to our tree (was developed over the Android tree).
Unfortunately, I don't think it ever got into Phab.
This task is to implement the missing symbols and turn on CRT_HAS_128BIT for
ARM32.</pre>
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