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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Clang IA] missing support for msr/mrs/sys/sysl instructions"
href="https://bugs.llvm.org/show_bug.cgi?id=41573">41573</a>
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<th>Summary</th>
<td>[Clang IA] missing support for msr/mrs/sys/sysl instructions
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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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>kristof.beyls@arm.com, llvm-bugs@lists.llvm.org, neeilans@live.com, oliver.stannard@arm.com, peter.smith@linaro.org, richard-llvm@metafoo.co.uk, srhines@google.com
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<pre>The linux kernel makes use of msr/mrs instructions in inline assembly (and is
looking to add sys/sysl) for arm64. We cannot turn on Clang's integrated
assembler for arm64 due to the above instructions being unsupported.
<a href="https://godbolt.org/z/wDBpz4">https://godbolt.org/z/wDBpz4</a></pre>
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