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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang fails to compile with flag fstrict-vtable-pointers on Windows"
href="https://bugs.llvm.org/show_bug.cgi?id=35231">35231</a>
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<th>Summary</th>
<td>Clang fails to compile with flag fstrict-vtable-pointers on Windows
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>new bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>adamf88@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19378" name="attach_19378" title="files sh and cpp">attachment 19378</a> <a href="attachment.cgi?id=19378&action=edit" title="files sh and cpp">[details]</a></span>
files sh and cpp
If I compile such program:
struct basic_ios2
{
virtual ~basic_ios2()
{}
};
struct basic_istream2 : virtual public basic_ios2
{
};
struct basic_stringstream2 : public basic_istream2
{
};
int main()
{
basic_stringstream2 ss;
return 0;
}
Then I receive an error:
Instruction does not dominate all uses!
%3 = bitcast i8* %2 to %struct.basic_stringstream2*
%7 = bitcast %struct.basic_stringstream2* %3 to i8*
fatal error: error in backend: Broken function found, compilation aborted!
Compilation command:
clang-cl "-cc1" "-emit-obj" "-O2" "-fstrict-vtable-pointers" test.cpp
In attachment clang generated files (sh + cpp)
Originally it comes from statement:
{
std::stringstream ss;
}</pre>
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