Add support for uint64 compares to TurboFan.

src/compiler/simplified-lowering.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/simplified-lowering.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-inl.h"
@@ skipping 655 matching lines @@
       case IrOpcode::kInt64Add:
       case IrOpcode::kInt64Sub:
       case IrOpcode::kInt64Mul:
       case IrOpcode::kInt64Div:
       case IrOpcode::kInt64Mod:
         return VisitInt64Binop(node);
       case IrOpcode::kInt64LessThan:
       case IrOpcode::kInt64LessThanOrEqual:
         return VisitInt64Cmp(node);
 
+      case IrOpcode::kUint64LessThan:
+        return VisitUint64Cmp(node);
+
       case IrOpcode::kInt64UDiv:
       case IrOpcode::kInt64UMod:
         return VisitUint64Binop(node);
 
       case IrOpcode::kWord64And:
       case IrOpcode::kWord64Or:
       case IrOpcode::kWord64Xor:
       case IrOpcode::kWord64Shl:
       case IrOpcode::kWord64Shr:
       case IrOpcode::kWord64Sar:
@@ skipping 249 matching lines @@
 void SimplifiedLowering::DoStringLessThanOrEqual(Node* node) {
   node->set_op(machine()->IntLessThanOrEqual());
   node->ReplaceInput(0, StringComparison(node, true));
   node->ReplaceInput(1, jsgraph()->SmiConstant(EQUAL));
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8