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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Broken module: CleanupPadInst not the first non-PHI instruction in the block"
href="https://llvm.org/bugs/show_bug.cgi?id=25326">25326</a>
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<th>Summary</th>
<td>Broken module: CleanupPadInst not the first non-PHI instruction in the block
</td>
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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>All
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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>Global Analyses
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>alex@crichton.co
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
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</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=15166" name="attach_15166" title="failing IR">attachment 15166</a> <a href="attachment.cgi?id=15166&action=edit" title="failing IR">[details]</a></span>
failing IR
When running `llc` over the LLVM IR attached, it will emit:
CleanupPadInst not the first non-PHI instruction in the block.
%cleanuppadi4.i.i.i = cleanuppad []
The unwind destination does not have an exception handling instruction!
invoke fastcc void
@"_ZN3vec13_$LT$impl$GT$7reserve7reserve20h8370453893456365494E"(%"3.collections::vec::Vec<middle::ty::ProjectionPredicate>"*
noalias nonnull dereferenceable(12) %vectori4.i.i, i32 %227)
to label %normal-return5.i.normal-return10.i_crit_edgei4.i.i unwind
label %unwind_custom_i4.i.i.i, !noalias !208
LLVM ERROR: Broken function found, compilation aborted!
When checking the IR, however, it looks like the `cleanuppad` instruction is
the first non-phi instruction in the block?
unwind_custom_i4.i.i.i:
%.lcssa178 = phi %"..."* [ %175, %normal-return5i4.i.i.i ]
%.pre.i.i.i.2672.i313i4.i.i.lcssa176 = phi %"..."* [
%.pre.i.i.i.2672.i313i4.i.i, %normal-return5i4.i.i.i ]
%cleanuppadi4.i.i.i = cleanuppad []
br label %loop_body.i.i.i.28i4.i.i.i
I wasn't really quite sure what was going wrong here, and it may be some
invalid IR elsewhere in the file (sorry, I couldn't get bugpoint to reduce it
further), but perhaps there's something odd going on?</pre>
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