Add a deoptimization count to each function to limit number of re-compilations.

src/heap.cc

 // Copyright 2011 the V8 project authors. All rights reserved.

[Jakob Kummerow, 2012/01/16 11:41:25]

nit: 2012

[fschneider, 2012/01/19 10:26:11]

Done.

 // 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
 //       with the distribution.
@@ skipping 2759 matching lines @@
   Code* construct_stub =
       isolate_->builtins()->builtin(Builtins::kJSConstructStubGeneric);
   share->set_construct_stub(construct_stub);
   share->set_instance_class_name(Object_symbol());
   share->set_function_data(undefined_value(), SKIP_WRITE_BARRIER);
   share->set_script(undefined_value(), SKIP_WRITE_BARRIER);
   share->set_debug_info(undefined_value(), SKIP_WRITE_BARRIER);
   share->set_inferred_name(empty_string(), SKIP_WRITE_BARRIER);
   share->set_initial_map(undefined_value(), SKIP_WRITE_BARRIER);
   share->set_this_property_assignments(undefined_value(), SKIP_WRITE_BARRIER);
-  share->set_deopt_counter(Smi::FromInt(FLAG_deopt_every_n_times));
+  share->set_stress_deopt_counter(Smi::FromInt(FLAG_deopt_every_n_times));
 
   // Set integer fields (smi or int, depending on the architecture).
   share->set_length(0);
   share->set_formal_parameter_count(0);
   share->set_expected_nof_properties(0);
   share->set_num_literals(0);
   share->set_start_position_and_type(0);
   share->set_end_position(0);
   share->set_function_token_position(0);
   // All compiler hints default to false or 0.
   share->set_compiler_hints(0);
   share->set_this_property_assignments_count(0);
-  share->set_opt_count(0);
+  share->set_deopt_count(0);
 
   return share;
 }
 
 
 MaybeObject* Heap::AllocateJSMessageObject(String* type,
                                            JSArray* arguments,
                                            int start_position,
                                            int end_position,
                                            Object* script,
@@ skipping 3827 matching lines @@
   isolate_->heap()->store_buffer()->Compact();
   isolate_->heap()->store_buffer()->Filter(MemoryChunk::ABOUT_TO_BE_FREED);
   for (chunk = chunks_queued_for_free_; chunk != NULL; chunk = next) {
     next = chunk->next_chunk();
     isolate_->memory_allocator()->Free(chunk);
   }
   chunks_queued_for_free_ = NULL;
 }
 
 } }  // namespace v8::internal