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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - aarch64-windows: fatal error "SEH unwind data splitting not yet implemented""
href="https://bugs.llvm.org/show_bug.cgi?id=40311">40311</a>
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<th>Summary</th>
<td>aarch64-windows: fatal error "SEH unwind data splitting not yet implemented"
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<th>Product</th>
<td>new-bugs
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<th>Version</th>
<td>7.0
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Windows NT
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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>new bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>dmajor@mozilla.com
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<th>CC</th>
<td>efriedma@codeaurora.org, htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, rnk@google.com
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<p>
<div>
<pre>With LLVM trunk plus the not-yet-landed SEH support in
<a href="https://reviews.llvm.org/D53540">https://reviews.llvm.org/D53540</a>, a clang-cl build of Firefox for
aarch64-windows hits this error:
<a href="https://github.com/llvm-mirror/llvm/commit/a9be23987d154b0bb53c156c47ae261161af87e8">https://github.com/llvm-mirror/llvm/commit/a9be23987d154b0bb53c156c47ae261161af87e8</a>
Are there any plans to implement the unwind data splitting or epilog code
sharing? This looks like the last remaining hurdle for Firefox to use clang-cl
with aarch64-windows builds, so we're pretty keen to follow along with the
progress.
I'm assuming that no reproducer is needed because this is a known limitation,
but let me know if I should include one.</pre>
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