Begin using a list of bailouts instead of a singleton in the fast code generator.

src/x64/codegen-x64.cc

 // Copyright 2010 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 259 matching lines @@
 
   __ movq(kScratchRegister, pairs, RelocInfo::EMBEDDED_OBJECT);
   frame_->EmitPush(rsi);  // The context is the first argument.
   frame_->EmitPush(kScratchRegister);
   frame_->EmitPush(Smi::FromInt(is_eval() ? 1 : 0));
   Result ignored = frame_->CallRuntime(Runtime::kDeclareGlobals, 3);
   // Return value is ignored.
 }
 
 
-void CodeGenerator::Generate(CompilationInfo* info, Mode mode) {
+void CodeGenerator::Generate(CompilationInfo* info) {
   // Record the position for debugging purposes.
   CodeForFunctionPosition(info->function());
 
   // Initialize state.
   info_ = info;
   ASSERT(allocator_ == NULL);
   RegisterAllocator register_allocator(this);
   allocator_ = &register_allocator;
   ASSERT(frame_ == NULL);
   frame_ = new VirtualFrame();
@@ skipping 18 matching lines @@
     CodeGenState state(this);
 
     // Entry:
     // Stack: receiver, arguments, return address.
     // rbp: caller's frame pointer
     // rsp: stack pointer
     // rdi: called JS function
     // rsi: callee's context
     allocator_->Initialize();
 
-    if (mode == PRIMARY) {
+    if (info->mode() == CompilationInfo::PRIMARY) {
       frame_->Enter();
 
       // Allocate space for locals and initialize them.
       frame_->AllocateStackSlots();
 
       // Allocate the local context if needed.
       int heap_slots = scope()->num_heap_slots();
       if (heap_slots > 0) {
         Comment cmnt(masm_, "[ allocate local context");
         // Allocate local context.
@@ skipping 70 matching lines @@
       if (scope()->is_function_scope() && scope()->function() != NULL) {
         frame_->Push(Factory::the_hole_value());
         StoreToSlot(scope()->function()->slot(), NOT_CONST_INIT);
       }
     } else {
       // When used as the secondary compiler for splitting, rbp, rsi,
       // and rdi have been pushed on the stack.  Adjust the virtual
       // frame to match this state.
       frame_->Adjust(3);
       allocator_->Unuse(rdi);
+
+      // Bind all the bailout labels to the beginning of the function.
+      List<CompilationInfo::Bailout*>* bailouts = info->bailouts();
+      for (int i = 0; i < bailouts->length(); i++) {
+        __ bind(bailouts->at(i)->label());
+      }
     }
 
     // Initialize the function return target after the locals are set
     // up, because it needs the expected frame height from the frame.
     function_return_.set_direction(JumpTarget::BIDIRECTIONAL);
     function_return_is_shadowed_ = false;
 
     // Generate code to 'execute' declarations and initialize functions
     // (source elements). In case of an illegal redeclaration we need to
     // handle that instead of processing the declarations.
@@ skipping 9070 matching lines @@
   // Call the function from C++.
   return FUNCTION_CAST<ModuloFunction>(buffer);
 }
 
 #endif
 
 
 #undef __
 
 } }  // namespace v8::internal