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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Transformation forms a non-viable shift node."
href="https://bugs.llvm.org/show_bug.cgi?id=38038">38038</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Transformation forms a non-viable shift node.
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
<tr>
<th>OS</th>
<td>MacOS X
</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>Scalar Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>scanon@apple.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>$ cat c.ll
define i8 @crash(half) {
entry:
%1 = bitcast half %0 to i16
%.lobit = lshr i16 %1, 15
%2 = trunc i16 %.lobit to i8
ret i8 %2
}
$ build01/llvm-macosx-x86_64/bin/llc c.ll
Assertion failed: (VT == N1.getValueType() && "Shift operators return type must
be the same as their first arg"), function getNode, file
/Users/arnold/Github/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 4351.
Apparent root cause of <a href="https://bugs.swift.org/browse/SR-7763">https://bugs.swift.org/browse/SR-7763</a></pre>
</div>
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