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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - broadcast of i64 generates broadcast of v2i64 (vbroadcasti128)" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23886&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=HJavpK3r0I0k-tptRgCZgjszwJQsAhMPQAM0T1PtoHk&s=qr_vyZ6oSPVTJ5a0lzVFAecLJ0VsoKWE7YQCKVT2cRQ&e=">23886</a>
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<th>Summary</th>
<td>broadcast of i64 generates broadcast of v2i64 (vbroadcasti128)
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<th>Product</th>
<td>libraries
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Backend: X86
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>ahmed.bougacha@gmail.com
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>define <4 x i64> @broadcast64(<2 x i64>* %src) {
%l = load <2 x i64>* %src, align 16
%r = shufflevector <2 x i64> %l, <2 x i64> undef, <4 x i32> <i32 0, i32 0,
i32 0, i32 0>
ret <4 x i64> %r
}
->
vbroadcasti128 (%rdi), %ymm0
whereas I expected (without folding):
vmovaps (%rdi), %xmm0
vbroadcastq %xmm0, %ymm0</pre>
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