[clang] [compiler-rt] [llvm] [X86] Add missing checks for attribute target testing and support AVX5124VNNIW/4FMAPS in compiler-rt (PR #218697)

[Mikołaj Piróg via llvm-commits]

mikolaj-pirog wrote:

Alternative for knm/knl is to not add the support in complier-rt but to forbid multiversionning on them. The current behavior is assert fail

https://github.com/llvm/llvm-project/pull/218697