[turbofan] Introduce WordRor machine 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 541e0452fa943273eb152769329863d4257ce614..35a7e5c3b6569449b273a58aee7a3e01b2dcb58d 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -511,6 +511,8 @@ void InstructionSelector::VisitNode(Node* node) {
       return VisitWord32Shr(node);
     case IrOpcode::kWord32Sar:
       return VisitWord32Sar(node);
+    case IrOpcode::kWord32Ror:
+      return VisitWord32Ror(node);
     case IrOpcode::kWord32Equal:
       return VisitWord32Equal(node);
     case IrOpcode::kWord64And:
@@ -525,6 +527,8 @@ void InstructionSelector::VisitNode(Node* node) {
       return VisitWord64Shr(node);
     case IrOpcode::kWord64Sar:
       return VisitWord64Sar(node);
+    case IrOpcode::kWord64Ror:
+      return VisitWord64Ror(node);
     case IrOpcode::kWord64Equal:
       return VisitWord64Equal(node);
     case IrOpcode::kInt32Add:
@@ -724,6 +728,9 @@ void InstructionSelector::VisitWord64Shr(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitWord64Sar(Node* node) { UNIMPLEMENTED(); }
 
 
+void InstructionSelector::VisitWord64Ror(Node* node) { UNIMPLEMENTED(); }
+
+
 void InstructionSelector::VisitInt64Add(Node* node) { UNIMPLEMENTED(); }