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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 - PPC vec_cst useless at -O0"
href="https://bugs.llvm.org/show_bug.cgi?id=33212">33212</a>
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<th>Summary</th>
<td>PPC vec_cst useless at -O0
</td>
</tr>
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<th>Product</th>
<td>libraries
</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>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Backend: PowerPC
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>benny.kra@gmail.com
</td>
</tr>
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<th>CC</th>
<td>echristo@gmail.com, llvm-bugs@lists.llvm.org, timshen91@gmail.com
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<p>
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<pre>$ cat cts.cc
#include <altivec.h>
typedef __vector float Packet4f;
typedef __vector int Packet4i;
Packet4i ConvertToPacket4i(const Packet4f& x) { return vec_cts(x, 0); }
$ clang --target=powerpc64le-linux-gnu cts.cc
fatal error: error in backend: Cannot select: intrinsic
%llvm.ppc.altivec.vctsxs
A workaround would be using macros instead of inline functions.</pre>
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