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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Codegen creates two distinct types for same Clang type"
href="http://llvm.org/bugs/show_bug.cgi?id=15341">15341</a>
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<th>Summary</th>
<td>Codegen creates two distinct types for same Clang type
</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>Windows NT
</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
</td>
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<th>Component</th>
<td>LLVM Codegen
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
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<th>Reporter</th>
<td>wolfeinstein@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>
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<p>
<div>
<pre>When using CodeGenModule class to code generate a module, GetAddrOfGlobal is
used to ensure that a global variable is actually saved and created in the
module. Then the module is released and linked into a second module.
Given
VarDecl* vd = ...
which is a global variable, then
codegen.getTypes().ConvertType(vd->getType());
is not the same LLVM type as
module.getGlobalVariable(codegen.MangleName(vd));
after indirection has been accounted for. Clang creates identical named and
unnamed LLVM type. This is after CodeGenModule::Release() has been called. The
test I have been working with is simply std::cout in <iostream>. This causes
spurious LLVM type errors. I am using Windows 7 x64, VS 2012, targetting MinGW
and using libstdc++ 4.6.3, and Clang is r175973.</pre>
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</p>
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