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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang rGab9fc8bae805 crashes when building the Linux kernel"
href="https://bugs.llvm.org/show_bug.cgi?id=47162">47162</a>
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<th>Summary</th>
<td>clang rGab9fc8bae805 crashes when building the Linux kernel
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
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<th>Assignee</th>
<td>david.bolvansky@gmail.com
</td>
</tr>
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<th>Reporter</th>
<td>samitolvanen@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, ndesaulniers@google.com, neeilans@live.com, richard-llvm@metafoo.co.uk
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=23850" name="attach_23850" title="tty_io-98ae38 crash reproducer">attachment 23850</a> <a href="attachment.cgi?id=23850&action=edit" title="tty_io-98ae38 crash reproducer">[details]</a></span>
tty_io-98ae38 crash reproducer
Starting with commit ab9fc8bae805c785066779e76e7846aabad5609e, clang crashes
when building the ToT x86 Linux kernel:
CC drivers/tty/tty_io.o
fatal error: error in backend: Cannot emit physreg copy instruction
clang-12: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 12.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
ab9fc8bae805c785066779e76e7846aabad5609e)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/usr/local/google/home/samitolvanen/src/unified-llvm/build.ab9fc8bae805c785066779e76e7846aabad5609e/bin
clang-12: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-12: note: diagnostic msg: /tmp/tty_io-98ae38.c
clang-12: note: diagnostic msg: /tmp/tty_io-98ae38.sh
clang-12: note: diagnostic msg:
********************
The previous commit works. The preprocessed source and the run script are
attached.</pre>
</div>
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