[turbofan] Implemented the TruncateFloat32ToUint64 TurboFan operator.

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 299138e70fb6028e827dd20caa9fda1cc4b9d91f..ced7c4f369a91221cb8176b4c4a1c27155d5a60d 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -851,6 +851,8 @@ void InstructionSelector::VisitNode(Node* node) {
       return MarkAsWord64(node), VisitTruncateFloat32ToInt64(node);
     case IrOpcode::kTruncateFloat64ToInt64:
       return MarkAsWord64(node), VisitTruncateFloat64ToInt64(node);
+    case IrOpcode::kTruncateFloat32ToUint64:
+      return MarkAsWord64(node), VisitTruncateFloat32ToUint64(node);
     case IrOpcode::kTruncateFloat64ToUint64:
       return MarkAsWord64(node), VisitTruncateFloat64ToUint64(node);
     case IrOpcode::kChangeInt32ToInt64:
@@ -1111,6 +1113,11 @@ void InstructionSelector::VisitTruncateFloat64ToInt64(Node* node) {
 }
 
 
+void InstructionSelector::VisitTruncateFloat32ToUint64(Node* node) {
+  UNIMPLEMENTED();
+}
+
+
 void InstructionSelector::VisitTruncateFloat64ToUint64(Node* node) {
   UNIMPLEMENTED();
 }