Vector ICs: Turbofan vector store ic support

src/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 1403 matching lines @@
     }
 
     VisitForStackValue(lit->constructor());
 
     __ Push(script());
     __ Push(Smi::FromInt(lit->start_position()));
     __ Push(Smi::FromInt(lit->end_position()));
 
     __ CallRuntime(Runtime::kDefineClass, 6);
     PrepareForBailoutForId(lit->CreateLiteralId(), TOS_REG);
-    EmitClassDefineProperties(lit);
+
+    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();
       EmitVariableAssignment(lit->class_variable_proxy()->var(),
-                             Token::INIT_CONST);
+                             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());
 }
 
 
 void FullCodeGenerator::VisitNativeFunctionLiteral(
     NativeFunctionLiteral* expr) {
   Comment cmnt(masm_, "[ NativeFunctionLiteral");
 
@@ skipping 253 matching lines @@
   codegen_->PrepareForBailoutForId(exit_id_, NO_REGISTERS);
   codegen_->scope_ = saved_scope_;
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8