Turn the load field code stub into a hydrogen code stub.

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index 5e0ee443385681cce4ad8acf69741856d03c7c56..2cdec937ec664b7475784edccdf01be7a3beece2 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -1236,10 +1236,19 @@ void BaseLoadStubCompiler::NonexistentHandlerFrontend(
 
 void BaseLoadStubCompiler::GenerateLoadField(Register reg,
                                              Handle<JSObject> holder,
-                                             PropertyIndex index) {
-  // Get the value from the properties.
-  GenerateFastPropertyLoad(masm(), eax, reg, holder, index);
-  __ ret(0);
+                                             PropertyIndex field) {
+  if (!reg.is(receiver())) __ mov(receiver(), reg);

[danno, 2013/05/02 10:56:59]

Seems like you should try to clean this up in a follow-up CL that the receiver
is always in the right register on all platforms. Perhaps a comment would be a
good idea for now to explain why this move is needed (with a TODO).

+  if (kind() == Code::LOAD_IC) {
+    LoadFieldStub stub(field.is_inobject(holder),
+                       field.translate(holder),
+                       Representation::Tagged());
+    GenerateTailCall(masm(), stub.GetCode(isolate()));
+  } else {
+    KeyedLoadFieldStub stub(field.is_inobject(holder),
+                            field.translate(holder),
+                            Representation::Tagged());
+    GenerateTailCall(masm(), stub.GetCode(isolate()));
+  }
 }