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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [AVX-512] KNL bug at -O0"
href="https://llvm.org/bugs/show_bug.cgi?id=30286">30286</a>
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</tr>
<tr>
<th>Summary</th>
<td>[AVX-512] KNL bug at -O0
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>babokin@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>guy.blank@intel.com, llvm-bugs@lists.llvm.org, Vsevolod.Livinskij@frtk.ru
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre><span class="quote">> cat pr.cpp</span >
#include <iostream>
struct S {
unsigned long ul : 25 ;
} s;
int main () {
s.ul = 27833667UL;
bool b = ((bool) !(((bool) s.ul ) && true)) && true;
std::cout << (b ? "FAIL":"PASS") << "\n";
return 0;
}
<span class="quote">> clang++ -O0 -o no_opt pr.cpp
> ./no_opt</span >
PASS
<span class="quote">> clang++ -O0 -march=knl -o knl_no_opt pr.cpp
>sde -knl -- ./knl_no_opt</span >
FAIL</pre>
</div>
</p>
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