Make use of post-scoping information to compute feedback vector requirements.

src/ast.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast.h"
 
 #include <cmath>  // For isfinite.
 #include "src/builtins.h"
 #include "src/code-stubs.h"
 #include "src/contexts.h"
@@ skipping 555 matching lines @@
   set_to_boolean_types(oracle->ToBooleanTypes(test_id()));
 }
 
 
 bool Call::IsUsingCallFeedbackSlot(Isolate* isolate) const {
   CallType call_type = GetCallType(isolate);
   return (call_type != POSSIBLY_EVAL_CALL);
 }
 
 
+FeedbackVectorRequirements Call::ComputeFeedbackRequirements(Isolate* isolate) {
+  int ic_slots = IsUsingCallFeedbackSlot(isolate) ? 1 : 0;
+  return FeedbackVectorRequirements(0, ic_slots);
+}
+
+
 Call::CallType Call::GetCallType(Isolate* isolate) const {
   VariableProxy* proxy = expression()->AsVariableProxy();
   if (proxy != NULL) {
     if (proxy->var()->is_possibly_eval(isolate)) {
       return POSSIBLY_EVAL_CALL;
     } else if (proxy->var()->IsUnallocated()) {
       return GLOBAL_CALL;
     } else if (proxy->var()->IsLookupSlot()) {
       return LOOKUP_SLOT_CALL;
     }
@@ skipping 425 matching lines @@
 // static
 bool Literal::Match(void* literal1, void* literal2) {
   const AstValue* x = static_cast<Literal*>(literal1)->raw_value();
   const AstValue* y = static_cast<Literal*>(literal2)->raw_value();
   return (x->IsString() && y->IsString() && *x->AsString() == *y->AsString()) ||
          (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber());
 }
 
 
 } }  // namespace v8::internal