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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - LLDB crashes when evaluating a function which receives a value object which has a virtual destructor"
href="http://llvm.org/bugs/show_bug.cgi?id=22314">22314</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>LLDB crashes when evaluating a function which receives a value object which has a virtual destructor
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</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>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Reporter</th>
<td>sivachandra@gmail.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Consider the following code:
class Foo
{
public:
virtual ~Foo ();
int a;
};
Foo::~Foo () {}
Foo
zero1 (Foo f)
{
Foo foo1;
foo1.a = -f.a;
return foo1;
}
Foo
zero2 ()
{
Foo f;
f.a = 0;
return f;
}
int
zero3 (Foo f)
{
return -f.a;
}
int
main ()
{
Foo f;
return 0; // Break here
}
If after breaking at the marked line, I see this happening:
(lldb) p zero1(f)
Aborted (core dumped)
(lldb) p zero2()
(Foo) $0 = (a = 0)
(lldb) p zero3(f)
Aborted (core dumped)
This issue is probably related to the more general issue reported here:
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Evaluating expressions that contain function calls is broken on Linux"
href="show_bug.cgi?id=14437">http://llvm.org/bugs/show_bug.cgi?id=14437</a>
I initially thought that the triviality of the class matters. However, things
work as expected if I make the destructor non-virtual.</pre>
</div>
</p>
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