Reland Vector ICs: platform support for vector-based stores.

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 325 matching lines @@
 }
 
 
 FeedbackVectorRequirements ObjectLiteral::ComputeFeedbackRequirements(
     Isolate* isolate, const ICSlotCache* cache) {
   if (!FLAG_vector_stores) return FeedbackVectorRequirements(0, 0);
 
   // This logic that computes the number of slots needed for vector store
   // ics must mirror FullCodeGenerator::VisitObjectLiteral.
   int ic_slots = 0;
+  bool saw_computed_name = false;
   for (int i = 0; i < properties()->length(); i++) {
     ObjectLiteral::Property* property = properties()->at(i);
     if (property->IsCompileTimeValue()) continue;
+    saw_computed_name |= property->is_computed_name();
 
     Expression* value = property->value();
-    if (property->is_computed_name() &&
+    if (saw_computed_name &&
         property->kind() != ObjectLiteral::Property::PROTOTYPE) {
       if (FunctionLiteral::NeedsHomeObject(value)) ic_slots++;
     } else if (property->emit_store()) {
       if (property->kind() == ObjectLiteral::Property::MATERIALIZED_LITERAL ||
           property->kind() == ObjectLiteral::Property::COMPUTED) {
         Literal* key = property->key()->AsLiteral();
         if (key->value()->IsInternalizedString()) ic_slots++;
         if (FunctionLiteral::NeedsHomeObject(value)) ic_slots++;
       } else if (property->kind() == ObjectLiteral::Property::GETTER ||
                  property->kind() == ObjectLiteral::Property::SETTER) {
@@ skipping 789 matching lines @@
 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 internal
 }  // namespace v8