[llvm] [X86][MC] Support encoding/decoding for APX variant ADD/SUB/ADC/SBB/OR/XOR instructions (PR #76319)

[Phoebe Wang via llvm-commits]

================
@@ -992,6 +995,12 @@ inline unsigned getOperandBias(const MCInstrDesc &Desc) {
   }
 }
 
+/// \returns true if the instruction has a NDD (new data destination).
+inline bool isND(uint64_t TSFlags) {
----------------
phoebewang wrote:

Maybe use a longer name?

https://github.com/llvm/llvm-project/pull/76319