[turbofan] Add backend support for float32 operations.

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index 85b0c3e14029d6ce93a88970fbb3226a02db0cfb..7419db2268362c86de4d97a8c3a0dd9102f3c275 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -2070,6 +2070,56 @@ Bounds Typer::Visitor::TypeTruncateInt64ToInt32(Node* node) {
 }
 
 
+Bounds Typer::Visitor::TypeFloat32Add(Node* node) {
+  return Bounds(Type::Number());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32Sub(Node* node) {
+  return Bounds(Type::Number());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32Mul(Node* node) {
+  return Bounds(Type::Number());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32Div(Node* node) {
+  return Bounds(Type::Number());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32Max(Node* node) {
+  return Bounds(Type::Number());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32Min(Node* node) {
+  return Bounds(Type::Number());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32Sqrt(Node* node) {
+  return Bounds(Type::Number());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32Equal(Node* node) {
+  return Bounds(Type::Boolean());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32LessThan(Node* node) {
+  return Bounds(Type::Boolean());
+}
+
+
+Bounds Typer::Visitor::TypeFloat32LessThanOrEqual(Node* node) {
+  return Bounds(Type::Boolean());
+}
+
+
 Bounds Typer::Visitor::TypeFloat64Add(Node* node) {
   return Bounds(Type::Number());
 }