[clang] [compiler-rt] [llvm] [SystemZ] Add support for half (fp16) (PR #109164)

[Jonas Paulsson via llvm-commits]

JonPsson1 wrote:

- SchedModel for Z17 updated with the new opcodes for fp16 variants.

- fp-half.ll now gets an MVC instead of VL/VST which should be fine according to e071233 "Consider VST/VL as SimpleBDXStore/Load".


https://github.com/llvm/llvm-project/pull/109164