[C++] Segfault in trivial example ?

[thelfer]

Dear enzyme community,
The attached file leads to a segfault on a trivial example using std::cos function directly. Everything works if std::cos is embedded in a standard function. See the example for details.
I am using LLVM-16 compiled in Ubuntu 23.10 with the master version of Enzyme (with a small correction du to an set but unused variable that lead to a compilation error).
The archive also contains the Makefile that I am using.
I am new to Enzyme and stupid mistakes on my side is highly plausible. However, any help would be greatly appreciated.
test.zip