[turbofan] Turn various diamonds into selects.

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/code-factory.h"
 #include "src/compiler/diamond.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/linkage.h"
@@ skipping 84 matching lines @@
 
 
 Node* ChangeLowering::LoadHeapNumberValue(Node* value, Node* control) {
   return graph()->NewNode(machine()->Load(kMachFloat64), value,
                           HeapNumberValueIndexConstant(), graph()->start(),
                           control);
 }
 
 
 Reduction ChangeLowering::ChangeBitToBool(Node* val, Node* control) {
-  Diamond d(graph(), common(), val);
-  d.Chain(control);
-  MachineType machine_type = static_cast<MachineType>(kTypeBool | kRepTagged);
-  return Replace(d.Phi(machine_type, jsgraph()->TrueConstant(),
-                       jsgraph()->FalseConstant()));
+  MachineType const type = static_cast<MachineType>(kTypeBool | kRepTagged);
+  return Replace(graph()->NewNode(common()->Select(type), val,
+                                  jsgraph()->TrueConstant(),
+                                  jsgraph()->FalseConstant()));
 }
 
 
 Reduction ChangeLowering::ChangeBoolToBit(Node* val) {
   return Replace(
       graph()->NewNode(machine()->WordEqual(), val, jsgraph()->TrueConstant()));
 }
 
 
 Reduction ChangeLowering::ChangeFloat64ToTagged(Node* val, Node* control) {
@@ skipping 91 matching lines @@
 }
 
 
 MachineOperatorBuilder* ChangeLowering::machine() const {
   return jsgraph()->machine();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8