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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assembler crashes on invalid 'out al, 4'"
href="http://llvm.org/bugs/show_bug.cgi?id=15945">15945</a>
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<th>Summary</th>
<td>Assembler crashes on invalid 'out al, 4'
</td>
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<th>Product</th>
<td>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>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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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>MC
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>matthewbg@google.com
</td>
</tr>
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<th>CC</th>
<td>chad.rosier@gmail.com, grosbach@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Found while playing around with PR15944:
$ clang -x assembler -c -o /dev/null - <<EOF
.intel_syntax noprefix
out al, 4
EOF
clang: include/llvm/ADT/SmallVector.h:144: const_reference
llvm::SmallVectorTemplateCommon<llvm::MCOperand, void>::operator[](unsigned
int) const [T = llvm::MCOperand]: Assertion `begin() + idx < end()' failed.</pre>
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