_Float16 handling changed in gcc 13?

[David Aldrich via Gcc-help <gcc-help@xxxxxxxxxxx>]

Hi

I have code that compiles correctly with gcc 12 and gcc 14, but not with gcc 13:

SIMD.h: In static member function ‘static std::complex<_Float16>
SIMD::reduce_add_pch(const __m256h&)’:
/SIMD.h:893:44: error: no matching function for call to
‘std::complex<_Float16>::complex(float&, float&)’
  893 |         return std::complex<_Float16>(re,im);
      |                                            ^

We are using C++20.

I know that the behaviour of _Float16 changed in gcc 13 but I don't
know how to fix this error.

Any suggestions please?

Best regards
David