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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 --- - AV512: _mm512_slli_epi32 requires constant"
href="https://llvm.org/bugs/show_bug.cgi?id=30691">30691</a>
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<th>Summary</th>
<td>AV512: _mm512_slli_epi32 requires constant
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>Roland.Schulz@Intel.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
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</tr></table>
<p>
<div>
<pre>Given:
#include <immintrin.h>
__m512i f(__m512i x, int n) {
return _mm512_slli_epi32(x,n);
}
Clang reports:
error: argument to '__builtin_ia32_pslldi512_mask' must be a constant integer
The corresponding AVX256 intrinsic works fine in clang. Also the AVX512 one
works fine in GCC and ICC. I think it (and _mm512_srli_epi32) should work
consistently by mapping to vpsllvd for non-const values, instead of requiring
const values.</pre>
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