[llvm] [ConstantTime][LLVM] Add llvm.ct.select intrinsic with generic SelectionDAG lowering (PR #166702)

[Julius Alexandre via llvm-commits]

================
@@ -1585,6 +1593,7 @@ void DAGTypeLegalizer::ExpandFloatResult(SDNode *N, unsigned ResNo) {
   case ISD::POISON:
   case ISD::UNDEF:        SplitRes_UNDEF(N, Lo, Hi); break;
   case ISD::SELECT:       SplitRes_Select(N, Lo, Hi); break;
+  case ISD::CT_SELECT:     SplitRes_CT_SELECT(N, Lo, Hi); break;
----------------
wizardengineer wrote:

Fixed the indentation in 64613ed31ef6.

https://github.com/llvm/llvm-project/pull/166702