[clang] [CIR][Aarch64] upstream scalar & vector intrinsics (FP16) (PR #190310)

[Andrzej Warzyński via cfe-commits]

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banach-space wrote:

> Should I be removing the ones in https://github.com/llvm/llvm-project/blob/8d7823ea8f40cf5df1c623018bf9c0a308fa4a36/clang/test/CodeGen/AArch64/v8.2a-fp16-intrinsics-constrained.c as well?

No need, we are ignoring the constrained variants for now. Thanks for asking!

https://github.com/llvm/llvm-project/pull/190310