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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [inline asm] clang ungracefull exit, asm regex"
href="https://llvm.org/bugs/show_bug.cgi?id=31171">31171</a>
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<th>Summary</th>
<td>[inline asm] clang ungracefull exit, asm regex
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>ziv.izhar@intel.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>the following code crashes instead of gracefully exit:
void add(volatile int* __mem, int __val)
{
__asm__ ("add{l} {%1,%0 {#dst last}|%0,%1}" /* illegal */
: "=m" (*__mem) : "ir" (__val) );
}
output:
fatal error: error in backend: Nested variants found in inline asm string:
'add$(l$) $($1,$0 $(#dst last$)$|$0,$1$)'
clang-3.9: error: clang frontend command failed with exit code 70 (use -v to
see invocation)
clang version 3.9.0 (tags/RELEASE_390/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/opt/gcc-explorer/clang+llvm-3.9.0-x86_64-linux-gnu-ubuntu-16.04/bin
clang-3.9: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
clang-3.9: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-3.9: note: diagnostic msg: /tmp/example-9ae93d.cpp
clang-3.9: note: diagnostic msg: /tmp/example-9ae93d.sh
clang-3.9: note: diagnostic msg:
********************
Compiler exited with result code 70</pre>
</div>
</p>
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