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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang segmentation fault slp-vectorize"
href="http://llvm.org/bugs/show_bug.cgi?id=21944">21944</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang segmentation fault slp-vectorize
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</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>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chh@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=13559" name="attach_13559" title="script and preprocessed source input to reproduce the bug">attachment 13559</a> <a href="attachment.cgi?id=13559&action=edit" title="script and preprocessed source input to reproduce the bug">[details]</a></span>
script and preprocessed source input to reproduce the bug
When compiling Android Open Source for aosp_fugu-userdebug target, clang has a
segmentation fault:
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module
'system/core/libmincrypt/p256_ec.c'.
4. Running pass 'X86 DAG->DAG Instruction Selection' on function
'@felem_square'
clang: error: unable to execute command: Segmentation fault (core dumped)
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.6
Target: i686--linux-android
Thread model: posix
Attached p256.zip file contains the reproducible data p256_ec-872742.{c,sh}
I can avoid the segmentation fault by turning off slp-vectorize, compiled with
-fno-slp-vectorize.</pre>
</div>
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