[clang] [llvm] [mlir] [clang][NVPTX][MLIR][NVVM] Add overloaded fadd intrinsics (PR #217336)

[Durgadoss R via cfe-commits]

================
@@ -4482,6 +4466,12 @@ static Constant *ConstantFoldFixedVectorCall(
 
     return ConstantVector::get(Result);
   }
+  case Intrinsic::nvvm_fadd:
+  case Intrinsic::nvvm_fadd_ftz:
+    // The rounding mode operand is a scalar, so the lane-wise folding below
+    // does not apply.
+    // TODO: Fold these by passing the rounding mode through to every lane.
----------------
durga4github wrote:

so, are we missing the v2f16 const folding now? 

https://github.com/llvm/llvm-project/pull/217336