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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 - LLDB crashes while printing optional<string> member from parent class"
href="https://bugs.llvm.org/show_bug.cgi?id=52393">52393</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>LLDB crashes while printing optional<string> member from parent class
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>12.0
</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@lists.llvm.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>manas18244@iiitd.ac.in
</td>
</tr>
<tr>
<th>CC</th>
<td>jdevlieghere@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=25419" name="attach_25419" title="Stack trace produced before segfault">attachment 25419</a> <a href="attachment.cgi?id=25419&action=edit" title="Stack trace produced before segfault">[details]</a></span>
Stack trace produced before segfault
```c++ (-std=c++17)
#include <string>
#include <optional>
using namespace std;
class A {
public:
optional<string> Label;
A() {}
};
class B : public A {
public:
B() {}
void foo();
};
void B::foo() {
return;
}
int main() {
B *Obj = new B();
Obj->foo();
return 0;
}
```
The above code when compiled with
g++ (GCC) 11.1.0
and tried to debug via
1. lldb version 12.0.1, and also with
2. lldb version 14.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a> revision
3be3c944a5bacfd208b56853941b0fa4dec3ddcc)
clang revision 3be3c944a5bacfd208b56853941b0fa4dec3ddcc
llvm revision 3be3c944a5bacfd208b56853941b0fa4dec3ddcc
produces the following trace and crashes with segfault.</pre>
</div>
</p>
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