VectorICs: VisitClassLiteral needs adjustment for IC slot usage.

src/full-codegen/full-codegen.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/v8.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/code-factory.h"
 #include "src/codegen.h"
@@ skipping 1292 matching lines @@
     __ CallRuntime(is_strong(language_mode()) ? Runtime::kDefineClassStrong
                                               : Runtime::kDefineClass,
                    6);
     PrepareForBailoutForId(lit->CreateLiteralId(), TOS_REG);
 
     int store_slot_index = 0;
     EmitClassDefineProperties(lit, &store_slot_index);
 
     if (lit->scope() != NULL) {
       DCHECK_NOT_NULL(lit->class_variable_proxy());
-      FeedbackVectorICSlot slot = FLAG_vector_stores
-                                      ? lit->GetNthSlot(store_slot_index++)
-                                      : FeedbackVectorICSlot::Invalid();
+      FeedbackVectorICSlot slot =
+          FLAG_vector_stores &&
+                  lit->class_variable_proxy()->var()->IsUnallocated()
+              ? lit->GetNthSlot(store_slot_index++)
+              : FeedbackVectorICSlot::Invalid();
       EmitVariableAssignment(lit->class_variable_proxy()->var(),
                              Token::INIT_CONST, slot);
     }
 
     // Verify that compilation exactly consumed the number of store ic slots
     // that the ClassLiteral node had to offer.
     DCHECK(!FLAG_vector_stores || store_slot_index == lit->slot_count());
   }
 
   context()->Plug(result_register());
@@ skipping 260 matching lines @@
   codegen_->PrepareForBailoutForId(exit_id_, NO_REGISTERS);
   codegen_->scope_ = saved_scope_;
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8