Adding a type vector to replace type cells.

src/full-codegen.cc

Index: src/full-codegen.cc
diff --git a/src/full-codegen.cc b/src/full-codegen.cc
index e14afefda4547a722d4185f496173ccd9e684e1a..0f1536f456bdf3d2306614cfadc6eb4fbcd98a1e 100644
--- a/src/full-codegen.cc
+++ b/src/full-codegen.cc
@@ -345,7 +345,6 @@ bool FullCodeGenerator::MakeCode(CompilationInfo* info) {
                         info->function()->scope()->AllowsLazyCompilation());
   cgen.PopulateDeoptimizationData(code);
   cgen.PopulateTypeFeedbackInfo(code);
-  cgen.PopulateTypeFeedbackCells(code);
   code->set_has_deoptimization_support(info->HasDeoptimizationSupport());
   code->set_handler_table(*cgen.handler_table());
 #ifdef ENABLE_DEBUGGER_SUPPORT
@@ -387,6 +386,15 @@ unsigned FullCodeGenerator::EmitBackEdgeTable() {
 }
 
 
+void FullCodeGenerator::InitializeFeedbackVector() {
+  int length = info_->function()->slot_count();
+  ASSERT_EQ(isolate()->heap()->the_hole_value(),
+            *TypeFeedbackInfo::UninitializedSentinel(isolate()));
+  feedback_vector_ = isolate()->factory()->NewFixedArrayWithHoles(length,
+                                                                  TENURED);
+}
+
+
 void FullCodeGenerator::PopulateDeoptimizationData(Handle<Code> code) {
   // Fill in the deoptimization information.
   ASSERT(info_->HasDeoptimizationSupport() || bailout_entries_.is_empty());
@@ -405,6 +413,7 @@ void FullCodeGenerator::PopulateDeoptimizationData(Handle<Code> code) {
 void FullCodeGenerator::PopulateTypeFeedbackInfo(Handle<Code> code) {
   Handle<TypeFeedbackInfo> info = isolate()->factory()->NewTypeFeedbackInfo();
   info->set_ic_total_count(ic_total_count_);
+  info->set_feedback_vector(*FeedbackVector());
   ASSERT(!isolate()->heap()->InNewSpace(*info));
   code->set_type_feedback_info(*info);
 }
@@ -425,21 +434,6 @@ void FullCodeGenerator::Initialize() {
 }
 
 
-void FullCodeGenerator::PopulateTypeFeedbackCells(Handle<Code> code) {
-  if (type_feedback_cells_.is_empty()) return;
-  int length = type_feedback_cells_.length();
-  int array_size = TypeFeedbackCells::LengthOfFixedArray(length);
-  Handle<TypeFeedbackCells> cache = Handle<TypeFeedbackCells>::cast(
-      isolate()->factory()->NewFixedArray(array_size, TENURED));
-  for (int i = 0; i < length; i++) {
-    cache->SetAstId(i, type_feedback_cells_[i].ast_id);
-    cache->SetCell(i, *type_feedback_cells_[i].cell);
-  }
-  TypeFeedbackInfo::cast(code->type_feedback_info())->set_type_feedback_cells(
-      *cache);
-}
-
-
 void FullCodeGenerator::PrepareForBailout(Expression* node, State state) {
   PrepareForBailoutForId(node->id(), state);
 }
@@ -490,13 +484,6 @@ void FullCodeGenerator::PrepareForBailoutForId(BailoutId id, State state) {
 }
 
 
-void FullCodeGenerator::RecordTypeFeedbackCell(
-    TypeFeedbackId id, Handle<Cell> cell) {
-  TypeFeedbackCellEntry entry = { id, cell };
-  type_feedback_cells_.Add(entry, zone());
-}
-
-
 void FullCodeGenerator::RecordBackEdge(BailoutId ast_id) {
   // The pc offset does not need to be encoded and packed together with a state.
   ASSERT(masm_->pc_offset() > 0);