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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - "S" arm64 assembly constraint unrecognized"
href="https://bugs.llvm.org/show_bug.cgi?id=37180">37180</a>
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<th>Summary</th>
<td>"S" arm64 assembly constraint unrecognized
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
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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
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Frontend
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>ndesaulniers@google.com
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<th>CC</th>
<td>jyknight@google.com, llvm-bugs@lists.llvm.org, niravd@google.com
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<pre>From [0], it was reported that we crash when trying to compile the Linux kernel
for arm64. From initial investigation, it seems that we fail to handle the "S"
inline assembly constraint. From [1], it seems that:
S
An absolute symbolic address or a label reference
[0] <a href="https://github.com/ClangBuiltLinux/linux/issues/13">https://github.com/ClangBuiltLinux/linux/issues/13</a>
[1]
<a href="https://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html#Machine-Constraints">https://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html#Machine-Constraints</a></pre>
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