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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ARM64] An Assertion failure about INSERT_SUBREG in EmitSubregNode()"
href="http://llvm.org/bugs/show_bug.cgi?id=19331">19331</a>
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<th>Summary</th>
<td>[ARM64] An Assertion failure about INSERT_SUBREG in EmitSubregNode()
</td>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>Hao.Liu@arm.com
</td>
</tr>
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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>Test case:
--------------------------------------------------------------
#include "arm_neon.h"
uint64x1_t dotest_insert_subreg(uint64x2_t in0) {
return vdup_n_u64(vpaddd_u64(in0));
}
--------------------------------------------------------------
To run:
clang -O0 --target=arm64-linux-gnu -c test0.c
The error message is as following:
llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp:549: void
llvm::InstrEmitter::EmitSubregNode(llvm::SDNode*, llvm::DenseMap<llvm::SDValue,
unsigned int>&, bool, bool): Assertion `SRC && "No register class supports VT
and SubIdx for INSERT_SUBREG"' failed.</pre>
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