Support optimization of named function literals.

src/hydrogen.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2290 matching lines @@
   }
 
   while (!arguments.is_empty()) {
     AddInstruction(new(zone()) HPushArgument(arguments.RemoveLast()));
   }
   return call;
 }
 
 
 void HGraphBuilder::SetupScope(Scope* scope) {
-  // We don't yet handle the function name for named function expressions.
-  if (scope->function() != NULL) return Bailout("named function expression");
-
   HConstant* undefined_constant = new(zone()) HConstant(
       isolate()->factory()->undefined_value(), Representation::Tagged());
   AddInstruction(undefined_constant);
   graph_->set_undefined_constant(undefined_constant);
 
   // Set the initial values of parameters including "this".  "This" has
   // parameter index 0.
   ASSERT_EQ(scope->num_parameters() + 1, environment()->parameter_count());
 
   for (int i = 0; i < environment()->parameter_count(); ++i) {
@@ skipping 3030 matching lines @@
   HValue* value = Pop();
   HIsNull* compare = new(zone()) HIsNull(value, expr->is_strict());
   ast_context()->ReturnInstruction(compare, expr->id());
 }
 
 
 void HGraphBuilder::VisitThisFunction(ThisFunction* expr) {
   ASSERT(!HasStackOverflow());
   ASSERT(current_block() != NULL);
   ASSERT(current_block()->HasPredecessor());
-  return Bailout("ThisFunction");
+  HThisFunction* self = new(zone()) HThisFunction;
+  return ast_context()->ReturnInstruction(self, expr->id());
 }
 
 
 void HGraphBuilder::VisitDeclaration(Declaration* decl) {
   // We allow only declarations that do not require code generation.
   // The following all require code generation: global variables,
   // functions, and variables with slot type LOOKUP
   Variable* var = decl->proxy()->var();
   Slot* slot = var->AsSlot();
   if (var->is_global() ||
@@ skipping 931 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify();
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal