<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/74470>74470</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Improve the lambda name in debug information
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          tru
      </td>
    </tr>
</table>

<pre>
    Internally the question came up why the lambda names where mangled names instead of a "pretty" name when debugging lambdas, here is the message I got:

```
Can we get a feature in LLVM to improve the naming of lambda symbol names?
Because _lambda12345 isn't very helpful in crash dumps  (when there is a crash within a lamda)
Something like _(__FILE__)_(__FUNCTION__)_(__LINE__)_(counter if there's name collisions) would be more useful
```

I asked @AaronBallman on discord and he said:

```
Hmmm when we print the "name", we usually use something like '(lambda at line:2:5)' but I there are contexts where we'd use the mangled name; I wonder if debugging is one such context (and perhaps that could be changed)?
```

and pointed to this code: https://github.com/llvm/llvm-project/blob/cd865e36dbc0b1778739348ac9a25eb18b5c5c16/clang/lib/CodeGen/CGDebugInfo.cpp#L353

He suggested I file this issue to have a discussion if this can be improved.

Cc @echristo @dwblaikie
</pre>
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