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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [MemorySSA] wrong code"
href="https://bugs.llvm.org/show_bug.cgi?id=41140">41140</a>
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</tr>
<tr>
<th>Summary</th>
<td>[MemorySSA] wrong code
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</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>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Global Analyses
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>paulsson@linux.vnet.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21630" name="attach_21630" title="reduced test case">attachment 21630</a> <a href="attachment.cgi?id=21630&action=edit" title="reduced test case">[details]</a></span>
reduced test case
gcc -O3 -march=z13 ./wrong0.i -o a.out -w ; ./a.out
checksum = 2
gcc -O0 -march=z13 ./wrong0.i -o a.out -w ; ./a.out
checksum = 2
bin/clang -O3 -march=z13 ./wrong0.i -o a.out -w ; ./a.out
checksum = 2
bin/clang -O3 -march=z13 ./wrong0.i -o a.out -w -mllvm
-enable-mssa-loop-dependency; ./a.out
checksum = 0
a, f;
*b = &a;
*volatile *c = &b;
static **d = &b;
short e;
main() {
for (; e <= 1; e++) {
**c = 2;
*d = &f;
}
printf("checksum = %X\n", a);
}
(also attached)</pre>
</div>
</p>
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