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<body><span class="vcard"><a class="email" href="mailto:t.p.northover@gmail.com" title="Tim Northover <t.p.northover@gmail.com>"> <span class="fn">Tim Northover</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - ACLE intrinics get compile error after r203229 commit"
href="http://llvm.org/bugs/show_bug.cgi?id=19094">bug 19094</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
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<td style="text-align:right;">CC</td>
<td>
</td>
<td>t.p.northover@gmail.com
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - ACLE intrinics get compile error after r203229 commit"
href="http://llvm.org/bugs/show_bug.cgi?id=19094#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - ACLE intrinics get compile error after r203229 commit"
href="http://llvm.org/bugs/show_bug.cgi?id=19094">bug 19094</a>
from <span class="vcard"><a class="email" href="mailto:t.p.northover@gmail.com" title="Tim Northover <t.p.northover@gmail.com>"> <span class="fn">Tim Northover</span></a>
</span></b>
<pre>This is a pair of bugs in AArch64's LowerCONCAT_VECTORS, exposed by slightly
different incoming code.
1. The NEON_VDUP optimisation was far too aggressive, assuming (I think) that
the input would always be BUILD_VECTOR. In this case it was interpreting the
intrinsic ID as the number being duplicated.
2. We were treating most unknown concats as legal (by returning Op rather than
SDValue). I think only concats of pairs of vectors are actually legal.
I've committed a patch fixes it as r203450, but it looks like the code could be
improved by some combining of CONCAT_VECTORS and BUILD_VECTOR handling in these
weird cases (the CONCAT is essentially a BUILD, just with a pseudovector input
rather than a real vector).</pre>
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