Add support for Float32 representation changes.

src/compiler/js-graph.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/js-graph.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/typer.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 147 matching lines @@
 
 Node* JSGraph::NumberConstant(double value) {
   Node** loc = cache_.FindNumberConstant(value);
   if (*loc == NULL) {
     *loc = NewNode(common()->NumberConstant(value));
   }
   return *loc;
 }
 
 
+Node* JSGraph::Float32Constant(float value) {
+  // TODO(turbofan): cache float32 constants.
+  return NewNode(common()->Float32Constant(value));
+}
+
+
 Node* JSGraph::Float64Constant(double value) {
   Node** loc = cache_.FindFloat64Constant(value);
   if (*loc == NULL) {
     *loc = NewNode(common()->Float64Constant(value));
   }
   return *loc;
 }
 
 
 Node* JSGraph::ExternalConstant(ExternalReference reference) {
   Node** loc = cache_.FindExternalConstant(reference);
   if (*loc == NULL) {
     *loc = NewNode(common()->ExternalConstant(reference));
   }
   return *loc;
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8