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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 - [X86] Missing _mm256_zextpd128_pd256 et al. helper intrinsics"
href="https://bugs.llvm.org/show_bug.cgi?id=32839">32839</a>
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<th>Summary</th>
<td>[X86] Missing _mm256_zextpd128_pd256 et al. helper intrinsics
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Headers
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>llvm-dev@redking.me.uk
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</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>ICC provides these helper intrinsics that are similar to their
'_mm256_castpd128_pd256' etc. siblings but guarantee zero extension of the
upper vector lanes.
avxintrin.h:
__m256d _mm256_zextpd128_pd256 (__m128d a)
__m256 _mm256_zextps128_ps256 (__m128 a)
__m256i _mm256_zextsi128_si256 (__m128i a)
avx512fintrin.h:
__m512d _mm512_zextpd128_pd512 (__m128d a)
__m512d _mm512_zextpd256_pd512 (__m256d a)
__m512 _mm512_zextps128_ps512 (__m128 a)
__m512 _mm512_zextps256_ps512 (__m256 a)
__m512i _mm512_zextsi128_si512 (__m128i a)
__m512i _mm512_zextsi256_si512 (__m256i a)</pre>
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