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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 - [LoopUnrollPeel] wrong-code with reduced test case"
href="https://bugs.llvm.org/show_bug.cgi?id=45939">45939</a>
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<th>Summary</th>
<td>[LoopUnrollPeel] wrong-code with reduced test case
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>10.0
</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>
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<th>Component</th>
<td>Loop Optimizer
</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>
</tr></table>
<p>
<div>
<pre>int a[256];
int b, c, d;
main() {
c = 0;
for (; c < 256; c++)
a[c] = c;
for (; d; d++)
;
printf("checksum = %X\n", b);
}
clang -O3 -march=z13 tc_peel2.i -o a.out -Wall; ./a.out
checksum = 0
clang -O3 -march=z13 tc_peel2.i -o a.out -Wall -mllvm -unroll-peel-count=2
checksum = 101</pre>
</div>
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