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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - reinterpret_cast doesn't work between vector and scalar"
href="https://bugs.llvm.org/show_bug.cgi?id=47977">47977</a>
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<th>Summary</th>
<td>reinterpret_cast doesn't work between vector and scalar
</td>
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<th>Product</th>
<td>clang
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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
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>OpenCL
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>marco.antognini@arm.com
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<th>CC</th>
<td>anastasia.stulova@arm.com, llvm-bugs@lists.llvm.org
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<p>
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<pre>In C++ for OpenCL, the following program doesn't compile:
int2 foo(long x) {
return reinterpret_cast<int2>(x);
}
The error is: reinterpret_cast from scalar 'long' to vector 'int2' (vector of 2
'int' values) of different size
This is unexpected. The error message is also wrong: both long and int2 have
the same size.
Replacing the cast with a C-cast works.
<a href="https://godbolt.org/z/K7vcv4">https://godbolt.org/z/K7vcv4</a></pre>
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