LLVM broken on main (arm64)?

Hi,

after updating from main-n279078-1f2c178e5688 to
main-n279105-9b3055d0d4bc (arm64) I have the following issue:

$ cc
PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.      Program arguments: cc
1.      Compilation construction
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  libprivatellvm.so.19 0x00000edc041485ec llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 72
1  libprivatellvm.so.19 0x00000edc041464ec llvm::sys::RunSignalHandlers() + 128
2  libprivatellvm.so.19 0x00000edc04148d48 llvm::support::detail::provider_format_adapter<int>::format(llvm::raw_ostream&, llvm::StringRef) + 412
3  libthr.so.3          0x00000edc06bafc38 _pthread_sigmask + 1320
Segmentation fault

-- 
Herbert