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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ThinLTO fails to consider module inline asm refs as gc roots"
href="http://bugs.llvm.org/show_bug.cgi?id=32798">32798</a>
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<th>Summary</th>
<td>ThinLTO fails to consider module inline asm refs as gc roots
</td>
</tr>
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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>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<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>Interprocedural Optimizations
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>peter@pcc.me.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>$ cat mod-asm.cpp
int main() {}
__asm__(".quad foo");
$ cat mod-asm2.cpp
int foo = 1;
$ ra/bin/clang mod-asm.cpp mod-asm2.cpp -fuse-ld=lld
$ ra/bin/clang -flto=thin mod-asm.cpp mod-asm2.cpp -fuse-ld=lld
[...]/bin/ld.lld: error: undefined symbol: foo
<span class="quote">>>> referenced by mod-asm.cpp
>>> lto.tmp:(.text+0x0)</span >
clang-5.0: error: linker command failed with exit code 1 (use -v to see
invocation)</pre>
</div>
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