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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - gstreamer causes assert "Wrong topological sorting", function InitDAGTopologicalSorting"
href="http://llvm.org/bugs/show_bug.cgi?id=15840">15840</a>
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<th>Summary</th>
<td>gstreamer causes assert "Wrong topological sorting", function InitDAGTopologicalSorting
</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>
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<th>OS</th>
<td>FreeBSD
</td>
</tr>
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<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>dimitry@andric.com
</td>
</tr>
<tr>
<th>CC</th>
<td>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=10423" name="attach_10423" title="Testcase for InitDAGTopologicalSorting assertion failure">attachment 10423</a> <a href="attachment.cgi?id=10423&action=edit" title="Testcase for InitDAGTopologicalSorting assertion failure">[details]</a></span>
Testcase for InitDAGTopologicalSorting assertion failure
Reduced testcase attached. Compiling with "-target i386-unknown-freebsd10 -O2
-c gstatomicqueue-testcase.c" results in:
Assertion failed: (Node2Index[SU->NodeNum] > Node2Index[I->getSUnit()->NodeNum]
&& "Wrong topological sorting"), function InitDAGTopologicalSorting, file
/share/dim/src/llvm/trunk/lib/CodeGen/ScheduleDAG.cpp, line 511.
Stack dump:
0. Program arguments:
/home/dim/obj/llvm-180108M-trunk-freebsd10-i386-aconf-rel-1/Release+Asserts/bin/clang
-cc1 -triple i386-unknown-freebsd10 -emit-obj -disable-free -main-file-name
gstatomicqueue-testcase.c -mrelocation-model static -mdisable-fp-elim
-masm-verbose -mconstructor-aliases -target-cpu i486 -target-linker-version
2.23.1 -coverage-file
/share/dim/src/llvm/bugs/gstreamer/gstatomicqueue-testcase.o -resource-dir
/home/dim/obj/llvm-180108M-trunk-freebsd10-i386-aconf-rel-1/Release+Asserts/bin/../lib/clang/3.3
-O2 -fdebug-compilation-dir /share/dim/src/llvm/bugs/gstreamer -ferror-limit 19
-fmessage-length 278 -mstackrealign -fobjc-runtime=gnustep
-fobjc-default-synthesize-properties -fdiagnostics-show-option
-fcolor-diagnostics -backend-option -vectorize-loops -o
gstatomicqueue-testcase.o -x c gstatomicqueue-testcase.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module
'gstatomicqueue-testcase.c'.
4. Running pass 'X86 DAG->DAG Instruction Selection' on function
'@gst_atomic_queue_push'
clang: error: unable to execute command: Abort trap (core dumped)
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.3 (trunk 180108)
Target: i386-unknown-freebsd10
Thread model: posix</pre>
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