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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Global variable always appears null"
href="https://bugs.llvm.org/show_bug.cgi?id=35892">35892</a>
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<th>Summary</th>
<td>Global variable always appears null
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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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>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>DebugInfo
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
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<th>Reporter</th>
<td>zturner@google.com
</td>
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<th>CC</th>
<td>amccarth@google.com, llvm-bugs@lists.llvm.org, llvm@inglorion.net, rnk@google.com
</td>
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<p>
<div>
<pre>Generate CMake like this:
cmake -G Ninja -DLLVM_ENABLE_PROJECTS="clang;lld" -DLLVM_TARGETS_TO_BUILD=X86
-DCMAKE_BUILD_TYPE=Debug
-DCMAKE_C_COMPILER=D:/src/llvmbuild/cl/Release/x64/bin/clang-cl.exe
-DCMAKE_CXX_COMPILER=D:/src/llvmbuild/cl/Release/x64/bin/clang-cl.exe
..\..\..\..\llvm-mono\llvm
This self-hosts using clang + msvc linker.
Now debug lld in Visual Studio, putting a breakpoint in Writer::run(). On the
first line, try to print the value of `Config`. It says the value is null.
However, it's obvious from inspecting the code that the value cannot possibly
be null or else the program would crash. So we have some bad debug info here.</pre>
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