arm-none-eabi-gcc internal compiler error when compiling CMSIS-DSP with _Float16 extension

I found an issue with float16 support in arm-none-eabi-gcc compiler when trying to compile CMSIS-DSP library for Arm Cortex M55. Only some sources cause this issue, and it seems related to the use of _Float16 macro.

I already opened the issue here on the CMSIS-DSP GitHub Repo, but they told me to report this to the compiler team.

You can find all details to reproduce the issue in the original issue. Please let me know if I can provide any additional info.

BR, Lorenzo