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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [MSAN] getShadow(llvm::Value *): Assertion `Shadow && "No shadow for a value"' failed with coroutines"
href="https://bugs.llvm.org/show_bug.cgi?id=33347">33347</a>
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<th>Summary</th>
<td>[MSAN] getShadow(llvm::Value *): Assertion `Shadow && "No shadow for a value"' failed with coroutines
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<tr>
<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Transformation Utilities
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>eric@efcs.ca
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<pre>Reproducer script + preprocessed source:
<a href="https://gist.github.com/EricWF/ca017912f403db1959b3f3882ecd71b2">https://gist.github.com/EricWF/ca017912f403db1959b3f3882ecd71b2</a>
The code above causes the following assertion when compiled with:
-fsanitize=memory -O2 -g -fcoroutines-ts
llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp:1099: llvm::Value
*(anonymous namespace)::MemorySanitizerVisitor::getShadow(llvm::Value *):
Assertion `Shadow && "No shadow for a value"' failed.</pre>
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