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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - InstCombine assertion at vector gep/icmp folding"
href="https://bugs.llvm.org/show_bug.cgi?id=38984">38984</a>
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<th>Summary</th>
<td>InstCombine assertion at vector gep/icmp folding
</td>
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<th>Product</th>
<td>new-bugs
</td>
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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
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>jesper.antonsson@ericsson.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=20886" name="attach_20886" title="reduced reproducer">attachment 20886</a> <a href="attachment.cgi?id=20886&action=edit" title="reduced reproducer">[details]</a></span>
reduced reproducer
The attached IR fails with:
opt: ../lib/IR/Value.cpp:413: void llvm::Value::doRAUW(llvm::Value *,
llvm::Value::ReplaceMetadataUses): Assertion `New->getType() == getType() &&
"replaceAllUses of value with new value of different type!"' failed.
when invoking:
opt -instcombine -S addr_diff_reduced.ll
The reason is that InstCombiner::foldGEPICmp() sees a vector icmp that it knows
to be all true and tries to replace it with an i1 true value.</pre>
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