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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - 64-bit vectors with SSE but no SSE2 cause compiler error on x86_64"
href="https://bugs.llvm.org/show_bug.cgi?id=48803">48803</a>
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<th>Summary</th>
<td>64-bit vectors with SSE but no SSE2 cause compiler error on x86_64
</td>
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<th>Product</th>
<td>new-bugs
</td>
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<th>Version</th>
<td>11.0
</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>
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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
</td>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>If you disable SSE2 but leave SSE enabled while targeting x86_64, using 64-bit
vectors will cause a compiler error. Here is a quick test case (or, on
Compiler Explorer if you prefer: <a href="https://godbolt.org/z/haGxze">https://godbolt.org/z/haGxze</a>):
typedef int __attribute__((__vector_size__(8))) vec;
void foo(vec a, vec b) {}</pre>
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