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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - CodeGen crash for Mips64: Assertion in InstrEmitter:EmitSubregNode"
href="https://bugs.llvm.org/show_bug.cgi?id=33424">33424</a>
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<th>Summary</th>
<td>CodeGen crash for Mips64: Assertion in InstrEmitter:EmitSubregNode
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Backend: MIPS
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pirama@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=18623" name="attach_18623" title="Simplified reproduction of Mips64 backend crash">attachment 18623</a> <a href="attachment.cgi?id=18623&action=edit" title="Simplified reproduction of Mips64 backend crash">[details]</a></span>
Simplified reproduction of Mips64 backend crash
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.
Bugpoint-simplified testcase attached. The issue was originally reported in
the Android NDK bugtracker (<a href="https://github.com/android-ndk/ndk/issues/419">https://github.com/android-ndk/ndk/issues/419</a>) and
has the full source that fails.
To reproduce, run: llc bugpoint-reduced-simplified.ll</pre>
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