[SLP] Silence -Wswitch warning after ec146cb7c0

{min,max}imum(X, X) is X so we can take the same path as min/max.

llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

@@ -13871,6 +13871,8 @@ private:
     case RecurKind::UMin:
     case RecurKind::FMax:
     case RecurKind::FMin:
+    case RecurKind::FMaximum:
+    case RecurKind::FMinimum:
       // res = vv
       return VectorizedValue;
     case RecurKind::Mul:
@@ -13918,6 +13920,8 @@ private:
     case RecurKind::UMin:
     case RecurKind::FMax:
     case RecurKind::FMin:
+    case RecurKind::FMaximum:
+    case RecurKind::FMinimum:
       // No need for multiple min/max(s) of the same value.
       LLVM_DEBUG(dbgs() << "SLP: Max/min of same " << VectorizedValue
                         << ". (HorRdx)\n");