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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [AArch64] vqmovun* return types should be unsigned"
href="https://bugs.llvm.org/show_bug.cgi?id=46840">46840</a>
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<th>Summary</th>
<td>[AArch64] vqmovun* return types should be unsigned
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<th>Product</th>
<td>new-bugs
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<th>Version</th>
<td>11.0
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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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>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>clang@evan.coeusgroup.com
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>clang has signed return values for the vqmovun* functions, but they should be
unsigned. See
<a href="https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics?search=vqmovun">https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics?search=vqmovun</a>
Trivial test case:
#include <arm_neon.h>
uint16_t foo(int32_t v);
uint16_t foo(int32_t v) {
return vqmovuns_s32(v);
}
On Compiler Explorer for convenience: <a href="https://godbolt.org/z/qYPP3j">https://godbolt.org/z/qYPP3j</a></pre>
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