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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - input module is broken! (Intrinsic has incorrect argument type!)"
href="https://bugs.llvm.org/show_bug.cgi?id=36424">36424</a>
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<th>Summary</th>
<td>input module is broken! (Intrinsic has incorrect argument type!)
</td>
</tr>
<tr>
<th>Product</th>
<td>tools
</td>
</tr>
<tr>
<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>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>bugpoint
</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>paulsson@linux.vnet.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19887" name="attach_19887" title="original test case">attachment 19887</a> <a href="attachment.cgi?id=19887&action=edit" title="original test case">[details]</a></span>
original test case
It seems to me that bugpoint is generating an incorrect program somehow and
fails to recognize this.
The original test case triggers an assert in NewGVN:
bin/opt -O3 -mcpu=z13 -S crash10.bc -enable-newgvn
opt: /home/ijonpan/llvm/llvm-dev-2/lib/Transforms/Scalar/NewGVN.cpp:3285: void
{anonymous}::NewGVN::verifyIterationSettled(llvm::Function&): Assertion
`BeforeCC->isEquivalentTo(AfterCC) && "Value number changed after main loop
completed!"' failed.
#0
...
I tried to reduce this, but bugpoint crashed with my script, in a way I have
not seen before:
...
Intrinsic has incorrect argument type!
void (i8*, i8*, i64, i1)* @llvm.memcpy.p0i8.p0i8.i64
/home/ijonpan/llvm/build/llvm-dev/bin/opt: bugpoint-input-d2e260a.bc: error:
input module is broken!
verify failed!
What is the reason for this? I don't know how bugpoint reduces the program, or
if the -enable-newgvn variable is somehow responsible?</pre>
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