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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Simple sample is broken after r217874: assert(use_empty() && "Uses remain when a value is destroyed!") in Value.cpp is fired"
href="http://llvm.org/bugs/show_bug.cgi?id=21043">21043</a>
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<th>Summary</th>
<td>Simple sample is broken after r217874: assert(use_empty() && "Uses remain when a value is destroyed!") in Value.cpp is fired
</td>
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<th>Product</th>
<td>clang
</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>
</tr>
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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
</td>
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<th>Component</th>
<td>LLVM Codegen
</td>
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<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>zinovy.nis@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Commit <a href="http://llvm.org/viewvc/llvm-project?view=revision&revision=217874">http://llvm.org/viewvc/llvm-project?view=revision&revision=217874</a> make
clang fail on the following sample:
------------------- inc.h ---------------
#pragma once
template <typename FP> struct Struct
{
Struct() {}
~Struct(){}
};
--------- def.cpp -----------------------
#include "inc.h"
template struct Struct<float>;
--------- main.cpp -----------------------
#include "inc.h"
int main(int argc, char *argv[])
{
Struct<float> dummy;
return 0;
}
Compile it with:
./clang++ -O0 -march=core-avx2 -flto -DNDEBUG main.cpp def.cpp
Compiler crahses with:
While deleting: %struct.Struct.0* %this
Use still stuck around after Def is destroyed:%struct.Struct.0* %this
ld: ~/TRUNK/llvm.vect.clear/llvm/lib/IR/Value.cpp:80: virtual
llvm::Value::~Value(): Assertion `use_empty() && "Uses remain when a value is
destroyed!"' failed.
clang-3.5: error: unable to execute command: Aborted
clang-3.5: error: linker command failed due to signal (use -v to see
invocation)</pre>
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