[turbofan] Next step towards shared operators.

src/compiler/change-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/change-lowering.h"
 #include "src/compiler/machine-operator.h"
 
 #include "src/compiler/js-graph.h"
 
 namespace v8 {
@@ skipping 150 matching lines @@
 Reduction ChangeLowering::ChangeTaggedToUI32(Node* val, Node* control,
                                              Signedness signedness) {
   STATIC_ASSERT(kSmiTag == 0);
   STATIC_ASSERT(kSmiTagMask == 1);
 
   Node* tag = graph()->NewNode(machine()->WordAnd(), val,
                                jsgraph()->Int32Constant(kSmiTagMask));
   Node* branch = graph()->NewNode(common()->Branch(), tag, control);
 
   Node* if_true = graph()->NewNode(common()->IfTrue(), branch);
-  Operator* op = (signedness == kSigned) ? machine()->ChangeFloat64ToInt32()
-                                         : machine()->ChangeFloat64ToUint32();
+  const Operator* op = (signedness == kSigned)
+                           ? machine()->ChangeFloat64ToInt32()
+                           : machine()->ChangeFloat64ToUint32();
   Node* change = graph()->NewNode(op, LoadHeapNumberValue(val, if_true));
 
   Node* if_false = graph()->NewNode(common()->IfFalse(), branch);
   Node* number = ChangeSmiToInt32(val);
 
   Node* merge = graph()->NewNode(common()->Merge(2), if_true, if_false);
   Node* phi = graph()->NewNode(
       common()->Phi((signedness == kSigned) ? kMachInt32 : kMachUint32, 2),
       change, number, merge);
 
@@ skipping 58 matching lines @@
 Graph* ChangeLowering::graph() const { return jsgraph()->graph(); }
 
 
 CommonOperatorBuilder* ChangeLowering::common() const {
   return jsgraph()->common();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8