<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Some of the neon-scalar-copy.ll DUP tests have regressed at some point, to mov+fmov."
href="http://llvm.org/bugs/show_bug.cgi?id=22418">22418</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Some of the neon-scalar-copy.ll DUP tests have regressed at some point, to mov+fmov.
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Backend: AArch64
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ahmed.bougacha@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>For some of the tests in neon-scalar-copy.ll, the CHECK lines were
inadvertently removed, and seem to have regressed at some point. Consider:
define <1 x i8> @test_vector_dup_bv16B(<16 x i8> %v1) {
%shuffle.i = shufflevector <16 x i8> %v1, <16 x i8> undef, <1 x i32> <i32 14>
ret <1 x i8> %shuffle.i
}
which used to check for:
dup {{b[0-9]+}}, {{v[0-9]+}}.b[14]
This now generates:
umov w8, v0.b[14]
fmov s0, w8
ret
Which looks worse to me.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>