<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - COFF: LLD fails to discard associative comdat sections with /OPT:NOREF"
href="https://bugs.llvm.org/show_bug.cgi?id=33446">33446</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>COFF: LLD fails to discard associative comdat sections with /OPT:NOREF
</td>
</tr>
<tr>
<th>Product</th>
<td>lld
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>COFF
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rnk@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The following test case should print "in ctor" once, but it prints twice:
$ cat a.cpp
extern "C" int puts(const char *);
struct Foo {
Foo() : x(42) { puts("in ctor"); }
int x;
};
Foo __declspec(selectany) f;
$ cat b.cpp
#include "a.cpp"
int main() {
puts("main");
return f.x;
}
$ cl -c a.cpp b.cpp && lld-link -opt:noref a.obj b.obj -out:t.exe && ./t.exe ;
echo $?
Microsoft (R) C/C++ Optimizing Compiler Version 19.00.24215.1 for x64
Copyright (C) Microsoft Corporation. All rights reserved.
a.cpp
b.cpp
Generating Code...
in ctor
in ctor
main
42</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>