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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - missing comdats for static initializers in template and guard variables"
href="https://llvm.org/bugs/show_bug.cgi?id=23472">23472</a>
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<th>Summary</th>
<td>missing comdats for static initializers in template and guard variables
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</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>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>yaron.keren@gmail.com
</td>
</tr>
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<th>CC</th>
<td>dschuff@google.com, geek4civic@gmail.com, llvmbugs@cs.uiuc.edu, rnk@google.com
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14307" name="attach_14307" title="header">attachment 14307</a> <a href="attachment.cgi?id=14307&action=edit" title="header">[details]</a></span>
header
compiling the attached sources on Windows x64 using
clang++ l1.cpp l2.cpp -target i686-pc-windows-gnu
results in
multiple definition of `guard variable for
lanczos_initializer<int>::initializer'
where as g++ is ok:
g++ l1.cpp l2.cpp
the object files shows comdats with g++ but not with clang:
>g++ l1.cpp -c & nm l1.o
00000000 b .bss
00000000 d .ctors
00000000 d .data
00000000 d .data$_ZGVN19lanczos_initializerIiE11initializerE
00000000 d .data$_ZN19lanczos_initializerIiE11initializerE
00000000 r .eh_frame
00000000 r .eh_frame$_ZN4initC1Ev
00000000 r .rdata$zzz
00000000 t .text
00000000 t .text$_ZN4initC1Ev
00000037 t __GLOBAL__sub_I__Z2l1v
00000000 T __Z2l1v
00000005 t __Z41__static_initialization_and_destruction_0ii
00000000 D __ZGVN19lanczos_initializerIiE11initializerE
00000000 D __ZN19lanczos_initializerIiE11initializerE
00000000 T __ZN4initC1Ev
>clang++ l1.cpp -c -target i686-pc-windows-gnu & nm l1.o
00000000 b .bss
00000000 b .bss
00000000 b .bss
00000000 d .ctors
00000000 d .data
00000000 d .eh_frame
00000000 t .text
00000000 t .text
00000000 t .text
00000001 a @feat.00
00000000 t ___cxx_global_var_init
00000000 T __Z2l1v
00000000 B __ZGVN19lanczos_initializerIiE11initializerE
00000000 B __ZN19lanczos_initializerIiE11initializerE
00000000 T __ZN4initC2Ev</pre>
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</p>
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