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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - opt -sroa causes "PHI node has multiple entries for the same basic block with different incoming values!""
href="https://bugs.llvm.org/show_bug.cgi?id=47945">47945</a>
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<th>Summary</th>
<td>opt -sroa causes "PHI node has multiple entries for the same basic block with different incoming values!"
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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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>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Scalar Optimizations
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>mikael.holmen@ericsson.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>Created <span class=""><a href="attachment.cgi?id=24093" name="attach_24093" title="bbi-30982_2.ll reproducer">attachment 24093</a> <a href="attachment.cgi?id=24093&action=edit" title="bbi-30982_2.ll reproducer">[details]</a></span>
bbi-30982_2.ll reproducer
Reproduce with:
opt -S -o - bbi-30982_2.ll -sroa
Result:
PHI node has multiple entries for the same basic block with different incoming
values!
%.pre-phi1.sroa.phi = phi i16* [ %s1.i.sroa.1.sroa.0.0.gep.sroa_cast2,
%land.lhs.true.i ], [ %s1.i.sroa.1.sroa.0.0.gep1.sroa_cast3, %land.lhs.true.i ]
label %land.lhs.true.i
%s1.i.sroa.1.sroa.0.0.gep1.sroa_cast3 = bitcast i8* %s1.i.sroa.1.sroa.0 to
i16*
%s1.i.sroa.1.sroa.0.0.gep.sroa_cast2 = bitcast i8* %s1.i.sroa.1.sroa.0 to
i16*
in function h
LLVM ERROR: Broken function found, compilation aborted!
Starts happening with 745c6c8458ba:
Process gep (phi ptr1, ptr2) in SROA
Differential Revision: <a href="https://reviews.llvm.org/D79218">https://reviews.llvm.org/D79218</a></pre>
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