[turbofan] Add operators for float32 support.

src/compiler/typer.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/graph-inl.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/node.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/simplified-operator.h"
@@ skipping 237 matching lines @@
 }
 
 
 Bounds Typer::Visitor::TypeInt64Constant(Node* node) {
   // TODO(titzer): only call Type::Of() if the type is not already known.
   return Bounds(
       Type::Of(static_cast<double>(OpParameter<int64_t>(node)), zone()));
 }
 
 
+Bounds Typer::Visitor::TypeFloat32Constant(Node* node) {
+  // TODO(titzer): only call Type::Of() if the type is not already known.
+  return Bounds(Type::Of(OpParameter<float>(node), zone()));
+}
+
+
 Bounds Typer::Visitor::TypeFloat64Constant(Node* node) {
   // TODO(titzer): only call Type::Of() if the type is not already known.
   return Bounds(Type::Of(OpParameter<double>(node), zone()));
 }
 
 
 Bounds Typer::Visitor::TypeNumberConstant(Node* node) {
   // TODO(titzer): only call Type::Of() if the type is not already known.
   return Bounds(Type::Of(OpParameter<double>(node), zone()));
 }
@@ skipping 621 matching lines @@
 }
 
 
 void Typer::DecorateGraph(Graph* graph) {
   graph->AddDecorator(new (zone()) TyperDecorator(this));
 }
 
 }
 }
 }  // namespace v8::internal::compiler