A64: Synchronize with r15814.

src/isolate.cc

 // 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 653 matching lines @@
   bool encountered_strict_function = false;
   for (StackFrameIterator iter(this);
        !iter.done() && frames_seen < limit;
        iter.Advance()) {
     StackFrame* raw_frame = iter.frame();
     if (IsVisibleInStackTrace(raw_frame, *caller, &seen_caller)) {
       frames_seen++;
       JavaScriptFrame* frame = JavaScriptFrame::cast(raw_frame);
       // Set initial size to the maximum inlining level + 1 for the outermost
       // function.
-      List<FrameSummary> frames(Compiler::kMaxInliningLevels + 1);
+      List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
       frame->Summarize(&frames);
       for (int i = frames.length() - 1; i >= 0; i--) {
         if (cursor + 4 > elements->length()) {
           int new_capacity = JSObject::NewElementsCapacity(elements->length());
           Handle<FixedArray> new_elements =
               factory()->NewFixedArrayWithHoles(new_capacity);
           for (int i = 0; i < cursor; i++) {
             new_elements->set(i, elements->get(i));
           }
           elements = new_elements;
@@ skipping 62 matching lines @@
       factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("isEval"));
   Handle<String> constructor_key =
       factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("isConstructor"));
 
   StackTraceFrameIterator it(this);
   int frames_seen = 0;
   while (!it.done() && (frames_seen < limit)) {
     JavaScriptFrame* frame = it.frame();
     // Set initial size to the maximum inlining level + 1 for the outermost
     // function.
-    List<FrameSummary> frames(Compiler::kMaxInliningLevels + 1);
+    List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
     frame->Summarize(&frames);
     for (int i = frames.length() - 1; i >= 0 && frames_seen < limit; i--) {
       // Create a JSObject to hold the information for the StackFrame.
       Handle<JSObject> stack_frame = factory()->NewJSObject(object_function());
 
       Handle<JSFunction> fun = frames[i].function();
       Handle<Script> script(Script::cast(fun->shared()->script()));
 
       if (options & StackTrace::kLineNumber) {
         int script_line_offset = script->line_offset()->value();
@@ skipping 1015 matching lines @@
       code_stub_interface_descriptors_(NULL),
       context_exit_happened_(false),
       initialized_from_snapshot_(false),
       cpu_profiler_(NULL),
       heap_profiler_(NULL),
       function_entry_hook_(NULL),
       deferred_handles_head_(NULL),
       optimizing_compiler_thread_(this),
       marking_thread_(NULL),
       sweeper_thread_(NULL),
-      callback_table_(NULL) {
+      callback_table_(NULL),
+      stress_deopt_count_(0) {
   id_ = NoBarrier_AtomicIncrement(&isolate_counter_, 1);
   TRACE_ISOLATE(constructor);
 
   memset(isolate_addresses_, 0,
       sizeof(isolate_addresses_[0]) * (kIsolateAddressCount + 1));
 
   heap_.isolate_ = this;
   stack_guard_.isolate_ = this;
 
   // ThreadManager is initialized early to support locking an isolate
@@ skipping 92 matching lines @@
     if (FLAG_marking_threads > 0) {
       for (int i = 0; i < FLAG_marking_threads; i++) {
         marking_thread_[i]->Stop();
         delete marking_thread_[i];
       }
       delete[] marking_thread_;
     }
 
     if (FLAG_hydrogen_stats) GetHStatistics()->Print();
 
+    if (FLAG_print_deopt_stress) {
+      PrintF(stdout, "=== Stress deopt counter: %u\n", stress_deopt_count_);
+    }
+
     // We must stop the logger before we tear down other components.
     Sampler* sampler = logger_->sampler();
     if (sampler && sampler->IsActive()) sampler->Stop();
 
     delete deoptimizer_data_;
     deoptimizer_data_ = NULL;
     if (FLAG_preemption) {
       v8::Locker locker(reinterpret_cast<v8::Isolate*>(this));
       v8::Locker::StopPreemption();
     }
@@ skipping 214 matching lines @@
   Release_Store(&debugger_initialized_, true);
 #endif
 }
 
 
 bool Isolate::Init(Deserializer* des) {
   ASSERT(state_ != INITIALIZED);
   ASSERT(Isolate::Current() == this);
   TRACE_ISOLATE(init);
 
+  stress_deopt_count_ = FLAG_deopt_every_n_times;
+
   if (function_entry_hook() != NULL) {
     // When function entry hooking is in effect, we have to create the code
     // stubs from scratch to get entry hooks, rather than loading the previously
     // generated stubs from disk.
     // If this assert fires, the initialization path has regressed.
     ASSERT(des == NULL);
   }
 
   // The initialization process does not handle memory exhaustion.
   DisallowAllocationFailure disallow_allocation_failure;
@@ skipping 351 matching lines @@
   return initial_object_proto->GetPrototype()->IsNull();
 }
 
 
 CodeStubInterfaceDescriptor*
     Isolate::code_stub_interface_descriptor(int index) {
   return code_stub_interface_descriptors_ + index;
 }
 
 
+Object* Isolate::FindCodeObject(Address a) {
+  return inner_pointer_to_code_cache()->GcSafeFindCodeForInnerPointer(a);
+}
+
+
 #ifdef DEBUG
 #define ISOLATE_FIELD_OFFSET(type, name, ignored)                       \
 const intptr_t Isolate::name##_debug_offset_ = OFFSET_OF(Isolate, name##_);
 ISOLATE_INIT_LIST(ISOLATE_FIELD_OFFSET)
 ISOLATE_INIT_ARRAY_LIST(ISOLATE_FIELD_OFFSET)
 #undef ISOLATE_FIELD_OFFSET
 #endif
 
 } }  // namespace v8::internal