[clang] [CIR][X86] Add NYI diagnostic for __builtin_ia32_sqrtps (PR #168320)

[Andy Kaylor via cfe-commits]

https://github.com/andykaylor commented:

The actual implementation for this isn't very big. See https://github.com/llvm/llvm-project/blob/21e0b56d7afc2f1af0ad5b728fcc039bfe1d37ff/clang/lib/CodeGen/TargetBuiltins/X86.cpp#L2240

There's no real value in replacing the current diagnostic with a new one, as opposed to just implementing the handling.

https://github.com/llvm/llvm-project/pull/168320