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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang 3.4 aborts when compiling dlaed3_ function in Numeric-24.2 on i386 with -fPIC -march=athlon64"
href="http://llvm.org/bugs/show_bug.cgi?id=19029">19029</a>
</td>
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<tr>
<th>Summary</th>
<td>clang 3.4 aborts when compiling dlaed3_ function in Numeric-24.2 on i386 with -fPIC -march=athlon64
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.4
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>FreeBSD
</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>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>truckman@FreeBSD.org
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
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<div>
<pre>When attempting to compile the dlapack_lite.c file in the python Numeric-24.2
module, clang aborts when it encounters the dlaed3_() function if
-march=athlon64 is specified. Clang does not abort without -march=athlon64.
# cc -c -O2 -fno-strict-aliasing -fPIC -march=athlon64 dlaed3_.c
Instruction does not dominate all uses!
%arrayidx106 = getelementptr inbounds double* %dlamda, i32 %sub83
%bound1492 = icmp ule double* %arrayidx106, %scevgep473
Instruction does not dominate all uses!
%arrayidx106 = getelementptr inbounds double* %dlamda, i32 %sub83
%bound0491 = icmp ule double* %scevgep471, %arrayidx106
Broken module found, compilation aborted!
Stack dump:
0. Program arguments: /usr/bin/cc -cc1 -triple i386-unknown-freebsd11.0
-emit-obj -disable-free -main-file-name dlaed3_.c -mrelocation-model pic
-pic-level 2 -mdisable-fp-elim -relaxed-aliasing -masm-verbose
-mconstructor-aliases -target-cpu athlon64 -coverage-file
/usr/ports/math/py-numeric/work/Numeric-24.2/Src/dlaed3_.o -resource-dir
/usr/bin/../lib/clang/3.4 -O2 -fdebug-compilation-dir
/usr/ports/math/py-numeric/work/Numeric-24.2/Src -ferror-limit 19
-fmessage-length 191 -mstackrealign -fobjc-runtime=gnustep
-fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp
-o dlaed3_.o -x c dlaed3_.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'dlaed3_.c'.
4. Running pass 'Module Verifier' on function '@dlaed3_'
cc: error: unable to execute command: Abort trap (core dumped)
cc: error: clang frontend command failed due to signal (use -v to see
invocation)
FreeBSD clang version 3.4 (tags/RELEASE_34/final 197956) 20140216
Target: i386-unknown-freebsd11.0
Thread model: posix
cc: 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.
cc: note: diagnostic msg:
********************</pre>
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