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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - AVX512 error in backend: unknown codeview register"
href="https://bugs.llvm.org/show_bug.cgi?id=38482">38482</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>AVX512 error in backend: unknown codeview register
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>neumann@imt.uni-luebeck.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>3>CL : fatal error : error in backend: unknown codeview register
3>clang-cl.exe : error : clang frontend command failed with exit code 70 (use
-v to see invocation)
3>clang version 8.0.0 (trunk)
3>Target: x86_64-pc-windows-msvc
3>Thread model: posix
3>InstalledDir: C:\Program Files\LLVM\bin
3>clang-cl.exe: note: diagnostic msg: PLEASE submit a bug report to
<a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash backtrace, preprocessed source,
and associated run script.
3>clang-cl.exe: note: diagnostic msg:
3>********************
3>
3>PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
3>Preprocessed source(s) and associated run script(s) are located at:
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\CommandOptions-306f7b.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\AnisotropyList-f6a129.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\FieldProperties-6385b1.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\HydrodynamicProperties-e413a3.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\MagneticProperties-77f9d1.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\ParticleProvider-7d81db.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\ParticleSimulationSettings-d4fda6.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\ProblemSettings-ab689b.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\ResultSettings-aea222.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\SimulationSettings-e49730.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\SolverSettings-7b60f0.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\SimulationApplication-6c59ad.cpp
3>clang-cl.exe: note: diagnostic msg:
C:\Users\neumann.IMT\AppData\Local\Temp\CommandOptions-306f7b.sh
3>clang-cl.exe: note: diagnostic msg:
3>
3>********************
Might be related to <a class="bz_bug_link
bz_status_NEW "
title="NEW - "error in backend: unknown codeview register" while compiling optimized AVX-512 code"
href="show_bug.cgi?id=35306">https://bugs.llvm.org/show_bug.cgi?id=35306</a>
Compiles fine with AVX and AVX2 but using /arch:AVX512 crashes clang in
release. In debug without optimizations (/Od) it compiles fine.
(Also crashes with clang 6.0)
Could not attach files due to size limitations. Compiling
SimulationApplication-6c59ad.cpp is the problem.
Compiling with "emit-llvm" works -> code generator crash?
Any advise how to solve the problem or further help investigating it?</pre>
</div>
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