incorrect result - batchmode

https://github.com/rust-lang/rust/issues/152724

The original issue reported there was an incorrect result by Enzyme in debug mode.

I tried to help minimizing but encountered a case where Enzyme creates a segfaulting binary instead:

[segfault_causing.ll.txt](https://github.com/user-attachments/files/27865787/segfault_causing.ll.txt)

Here's a an automatically significantly reduced version. It still prints wrong results and then segfaults, but llvm-reduce could have introduced it's own issues:

[reduced.ll.txt](https://github.com/user-attachments/files/27865822/reduced.ll.txt)