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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - llc code generation for lambda"
href="https://llvm.org/bugs/show_bug.cgi?id=26789">26789</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llc code generation for lambda
</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>
<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>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>paz215@lehigh.edu
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Test code:
void f(const std::string& arg = "Main")
{
std::cout << arg ;
}
auto fp() -> void(*)(const std::string&)
{
return f;
}
int main()
{
fp()("Pointer");
}
Using both versions (3.7 and 3.9), it fails with an segmentation fault with
llc:
$ llc-3.7 -march=cpp test.ll -o ir_lambda.cpp
0 libLLVM-3.7.so.1 0x00007fc945bb4900
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 64
1 libLLVM-3.7.so.1 0x00007fc945bb3d61
2 libc.so.6 0x00007fc944fb52b0
3 libc.so.6 0x00007fc9450cd906
4 libLLVM-3.7.so.1 0x00007fc945be15a1 llvm::raw_ostream::copy_to_buffer(char
const*, unsigned long) + 49
5 libLLVM-3.7.so.1 0x00007fc945be164c llvm::raw_ostream::write(char const*,
unsigned long) + 92
6 libLLVM-3.7.so.1 0x00007fc94642da91
7 libLLVM-3.7.so.1 0x00007fc9464312fc
8 libLLVM-3.7.so.1 0x00007fc9464316c9
9 libLLVM-3.7.so.1 0x00007fc94643250c
10 libLLVM-3.7.so.1 0x00007fc945e6c7b4
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 772
11 llc-3.7 0x000000000041419b
12 llc-3.7 0x000000000040e608 main + 392
13 libc.so.6 0x00007fc944fa0a00 __libc_start_main + 240
14 llc-3.7 0x000000000040e679 _start + 41
Stack dump:
0. Program arguments: llc-3.7 -march=cpp func-call.ll -o ir_func.cpp
1. Running pass 'C++ backend' on module 'func-call.ll'.
Segmentation fault (core dumped)</pre>
</div>
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