[turbofan] Implemented the RoundUint64ToFloat32 TurboFan operator for x64, arm64,

src/compiler/ppc/instruction-selector-ppc.cc

Index: src/compiler/ppc/instruction-selector-ppc.cc
diff --git a/src/compiler/ppc/instruction-selector-ppc.cc b/src/compiler/ppc/instruction-selector-ppc.cc
index 46f9823186551659098024ac7ecab3f657a18670..47014253f353ffd0c7353b61cbe6beff97124922 100644
--- a/src/compiler/ppc/instruction-selector-ppc.cc
+++ b/src/compiler/ppc/instruction-selector-ppc.cc
@@ -973,6 +973,11 @@ void InstructionSelector::VisitRoundInt64ToFloat64(Node* node) {
 }
 
 
+void InstructionSelector::VisitRoundUint64ToFloat32(Node* node) {
+  VisitRR(this, kPPC_Uint64ToFloat32, node);
+}
+
+
 void InstructionSelector::VisitRoundUint64ToFloat64(Node* node) {
   VisitRR(this, kPPC_Uint64ToDouble, node);
 }