[turbofan] Add RoundUint32ToFloat32 operator to Turbofan.

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index 32ffc634e01efcb20cec6338e5ef9241bb8b400f..f4a3cab63e5f44c984901e9b4e4df34cdf37a40f 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -984,6 +984,8 @@ void InstructionSelector::VisitNode(Node* node) {
       return MarkAsFloat64(node), VisitRoundInt64ToFloat64(node);
     case IrOpcode::kBitcastFloat32ToInt32:
       return MarkAsWord32(node), VisitBitcastFloat32ToInt32(node);
+    case IrOpcode::kRoundUint32ToFloat32:
+      return MarkAsFloat32(node), VisitRoundUint32ToFloat32(node);
     case IrOpcode::kRoundUint64ToFloat32:
       return MarkAsFloat64(node), VisitRoundUint64ToFloat32(node);
     case IrOpcode::kRoundUint64ToFloat64: