Add OptimizedCodeList and DeoptimizedCodeList to native contexts. Both lists are weak. This makes i…

src/objects-inl.h

 // Copyright 2012 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 5034 matching lines @@
   bool is_optimized = code->kind() == Code::OPTIMIZED_FUNCTION;
 
   set_code(code);
 
   // Add/remove the function from the list of optimized functions for this
   // context based on the state change.
   if (!was_optimized && is_optimized) {
     context()->native_context()->AddOptimizedFunction(this);
   }
   if (was_optimized && !is_optimized) {
+    // TODO(titzer): linear in the number of optimized functions; fix!
     context()->native_context()->RemoveOptimizedFunction(this);
   }
 }
 
 
 Context* JSFunction::context() {
   return Context::cast(READ_FIELD(this, kContextOffset));
 }
 
 
@@ skipping 242 matching lines @@
 
 
 void Code::set_type_feedback_info(Object* value, WriteBarrierMode mode) {
   ASSERT(kind() == FUNCTION);
   WRITE_FIELD(this, kTypeFeedbackInfoOffset, value);
   CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kTypeFeedbackInfoOffset,
                             value, mode);
 }
 
 
+Object* Code::next_code_link() {
+  CHECK(kind() == OPTIMIZED_FUNCTION);
+  return Object::cast(READ_FIELD(this, kTypeFeedbackInfoOffset));
+}
+
+
+void Code::set_next_code_link(Object* value, WriteBarrierMode mode) {
+  CHECK(kind() == OPTIMIZED_FUNCTION);
+  WRITE_FIELD(this, kTypeFeedbackInfoOffset, value);
+  CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kTypeFeedbackInfoOffset,
+                            value, mode);
+}
+
+
 int Code::stub_info() {
   ASSERT(kind() == COMPARE_IC || kind() == COMPARE_NIL_IC ||
          kind() == BINARY_OP_IC || kind() == LOAD_IC);
   Object* value = READ_FIELD(this, kTypeFeedbackInfoOffset);
   return Smi::cast(value)->value();
 }
 
 
 void Code::set_stub_info(int value) {
   ASSERT(kind() == COMPARE_IC ||
          kind() == COMPARE_NIL_IC ||
          kind() == BINARY_OP_IC ||
          kind() == STUB ||
          kind() == LOAD_IC ||
          kind() == KEYED_LOAD_IC ||
          kind() == STORE_IC ||
          kind() == KEYED_STORE_IC);
   WRITE_FIELD(this, kTypeFeedbackInfoOffset, Smi::FromInt(value));
 }
 
 
-Object* Code::code_to_deoptimize_link() {
-  // Optimized code should not have type feedback.
-  ASSERT(kind() == OPTIMIZED_FUNCTION);
-  return READ_FIELD(this, kTypeFeedbackInfoOffset);
-}
-
-
-void Code::set_code_to_deoptimize_link(Object* value) {
-  ASSERT(kind() == OPTIMIZED_FUNCTION);
-  WRITE_FIELD(this, kTypeFeedbackInfoOffset, value);
-}
-
-
-Object** Code::code_to_deoptimize_link_slot() {
-  ASSERT(kind() == OPTIMIZED_FUNCTION);
-  return HeapObject::RawField(this, kTypeFeedbackInfoOffset);
-}
-
-
 ACCESSORS(Code, gc_metadata, Object, kGCMetadataOffset)
 INT_ACCESSORS(Code, ic_age, kICAgeOffset)
 
 
 byte* Code::instruction_start()  {
   return FIELD_ADDR(this, kHeaderSize);
 }
 
 
 byte* Code::instruction_end()  {
@@ skipping 966 matching lines @@
 #undef WRITE_UINT32_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_