[turbofan] Get rid of DefineAsDoubleRegister() and friends.

src/compiler/instruction-selector.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/instruction-selector.h"
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/pipeline.h"
@@ skipping 719 matching lines @@
 
 void InstructionSelector::VisitInt64LessThanOrEqual(Node* node) {
   FlagsContinuation cont(kSignedLessThanOrEqual, node);
   VisitWord64Compare(node, &cont);
 }
 
 
 void InstructionSelector::VisitTruncateFloat64ToInt32(Node* node) {
   OperandGenerator g(this);
   Emit(kArchTruncateDoubleToI, g.DefineAsRegister(node),
-       g.UseDoubleRegister(node->InputAt(0)));
+       g.UseRegister(node->InputAt(0)));
 }
 
 
 void InstructionSelector::VisitFloat64Equal(Node* node) {
   FlagsContinuation cont(kUnorderedEqual, node);
   VisitFloat64Compare(node, &cont);
 }
 
 
 void InstructionSelector::VisitFloat64LessThan(Node* node) {
@@ skipping 384 matching lines @@
 
 
 void InstructionSelector::VisitCall(Node* call, BasicBlock* continuation,
                                     BasicBlock* deoptimization) {}
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8