PPC64: Implemented the RoundInt64ToFloat32 TurboFan operator.

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 c16d8fd0bc897c460b65188dc7bd5250b3354480..ced98ac2c5a4137dddb0d67d635685858e94f43c 100644
--- a/src/compiler/ppc/instruction-selector-ppc.cc
+++ b/src/compiler/ppc/instruction-selector-ppc.cc
@@ -954,6 +954,11 @@ void InstructionSelector::VisitTruncateInt64ToInt32(Node* node) {
 }
 
 
+void InstructionSelector::VisitRoundInt64ToFloat32(Node* node) {
+  VisitRR(this, kPPC_Int64ToFloat32, node);
+}
+
+
 void InstructionSelector::VisitRoundInt64ToFloat64(Node* node) {
   VisitRR(this, kPPC_Int64ToDouble, node);
 }