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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [LICM with cfl-aa=both] wrong code"
href="https://bugs.llvm.org/show_bug.cgi?id=46037">46037</a>
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<th>Summary</th>
<td>[LICM with cfl-aa=both] wrong code
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<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>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Global Analyses
</td>
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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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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=23521" name="attach_23521" title="reduced testcase">attachment 23521</a> <a href="attachment.cgi?id=23521&action=edit" title="reduced testcase">[details]</a></span>
reduced testcase
clang -O3 -march=z13 tc_cfl-aa.i -o ./a.out -w ; ./a.out
checksum = 4
$LLVM_BUILD/bin/clang -O3 -march=z13 tc_cfl-aa.i -o ./a.out -w -mllvm
-use-cfl-aa=both; ./a.out
checksum = 0
The reduced test program should print '4'.
It seems that LICM is hoisting the load of @d_ptr which seems wrong since @PtoP
is a pointer to pointer which alters @d_ptr before @d_ptr is derefenced.</pre>
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