[turbofan] Implemented the TruncateFloat32ToUint64 TurboFan operator.

src/compiler/mips64/instruction-selector-mips64.cc

Index: src/compiler/mips64/instruction-selector-mips64.cc
diff --git a/src/compiler/mips64/instruction-selector-mips64.cc b/src/compiler/mips64/instruction-selector-mips64.cc
index 5a32bb078b2b7fb3bd2fe4a1490376403321d55d..099dc75dc86cf96d70a78ccba660af0e476cfada 100644
--- a/src/compiler/mips64/instruction-selector-mips64.cc
+++ b/src/compiler/mips64/instruction-selector-mips64.cc
@@ -741,6 +741,11 @@ void InstructionSelector::VisitTruncateFloat64ToInt64(Node* node) {
 }
 
 
+void InstructionSelector::VisitTruncateFloat32ToUint64(Node* node) {
+  UNIMPLEMENTED();
+}
+
+
 void InstructionSelector::VisitTruncateFloat64ToUint64(Node* node) {
   VisitRR(this, kMips64TruncUlD, node);
 }