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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Legalization code assumes only integer typed ops may need expanding"
href="https://llvm.org/bugs/show_bug.cgi?id=30715">30715</a>
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<th>Summary</th>
<td>Legalization code assumes only integer typed ops may need expanding
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>3.9
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Common Code Generator Code
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nemanja.i.ibm@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17456" name="attach_17456" title="Test case that causes the failure">attachment 17456</a> <a href="attachment.cgi?id=17456&action=edit" title="Test case that causes the failure">[details]</a></span>
Test case that causes the failure
When a floating point type needs to be legalized by expanding, the code in
DAGTypeLegalizer::ExpandOp_BITCAST causes an assert in
DAGTypeLegalizer::IntegerToVector to trip because it assumes that the input
operand is integral. But there is a type that may need to be legalized by
expanding (namely ppcf128 is a pair of doubles).
To reproduce:
llc < legalize-bug.ll
.text
.abiversion 2
.file "<stdin>"
llc:
/home/nemanjai/llvm/llvm-clean/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp:321:
void llvm::DAGTypeLegalizer::IntegerToVector(llvm::SDValue, unsigned int,
llvm::SmallVectorImpl<llvm::SDValue>&, llvm::EVT): Assertion
`Op.getValueType().isInteger()' failed.
<... rest of stack trace omitted for brevity ...></pre>
</div>
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