update for xsimd 13 #2769
Description
xsimd 12 was recently released. It provides significant improvements in stability on less common architectures such as armhf, and has stabilised handling of batch bools (essentially by not doing it), which is not supported by all architectures.
The batch changes need some updating in xtensor, likely related to #2733
For instance, if the current dependence on xsimd 11 is manually flipped to 12 in CMakeFiles.txt, then xtensor 0.24.7 (patched by #2735) gives the error
/build/xtensor/test/test_xoperation.cpp:372:9: required from here
/usr/include/xsimd/types/xsimd_traits.hpp:71:43: error: static assertion failed: usage of batch type with unsupported type
71 | static_assert(!A::supported() || xsimd::has_simd_register<T, A>::value,
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/xsimd/types/xsimd_traits.hpp:71:43: note: ‘((! xsimd::fma3<xsimd::avx2>::supported()) || ((bool)std::integral_constant<bool, false>::value))’ evaluates to false
It would be great if xtensor could be updated for xsimd 12.