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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Csmith program gives bad checksum with -disable-basicaa"
href="https://bugs.llvm.org/show_bug.cgi?id=34860">34860</a>
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<th>Summary</th>
<td>Csmith program gives bad checksum with -disable-basicaa
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<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>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Common Code Generator Code
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>paulsson@linux.vnet.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19247" name="attach_19247" title="bugpoint reduced testcase with same checksums / options">attachment 19247</a> <a href="attachment.cgi?id=19247&action=edit" title="bugpoint reduced testcase with same checksums / options">[details]</a></span>
bugpoint reduced testcase with same checksums / options
Preprocessed orinal c-program:
wrong10.i
49B9B5C5: /root/llvm/build/llvm-dev/bin/clang -O3 -march=z13 wrong10.c
-I/root/csmith/runtime -o a.out -w
5FFE0748: /root/llvm/build/llvm-dev/bin/clang -O3 -march=z13 wrong10.c
-I/root/csmith/runtime -o a.out -w -mllvm -disable-basicaa
(Out of 15 builds with randomized options did all but one gave checksum
49B9B5C5).
reduced program (also prints a number of other lines): wrong10.reduced.bc
/root/llvm/build/llvm-dev/bin/clang -O3 -march=z13 ./wrong10.reduced.bc -o
a.out -w; ./a.out |& grep checksum
checksum = 49B9B5C5
/root/llvm/build/llvm-dev/bin/clang -O3 -march=z13 ./wrong10.reduced.bc -o
a.out -w -mllvm -disable-basicaa; ./a.out |& grep checksum
checksum = 5FFE0748
Note : the commits were:
LLVM : e5e1c85 / trunk@314416
clang: 0e1f5c3 / cfe/trunk@314391</pre>
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