Flesh out vector ic state query and set mechanisms.

src/ic/ic-inl.h

 // 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.
 
 #ifndef V8_IC_INL_H_
 #define V8_IC_INL_H_
 
 #include "src/ic/ic.h"
 
 #include "src/compiler.h"
@@ skipping 78 matching lines @@
   // is safe for use during GC where the map might be marked.
   Code* result = Code::GetCodeFromTargetAddress(target);
   DCHECK(result->is_inline_cache_stub());
   return result;
 }
 
 
 void IC::SetTargetAtAddress(Address address, Code* target,
                             ConstantPoolArray* constant_pool) {
   DCHECK(target->is_inline_cache_stub() || target->is_compare_ic_stub());
+
+  // Don't use this for load_ics when --vector-ics is turned on.
+  DCHECK(!(FLAG_vector_ics && target->is_inline_cache_stub()) ||
+         (target->kind() != Code::LOAD_IC &&
+          target->kind() != Code::KEYED_LOAD_IC));
+
   Heap* heap = target->GetHeap();
   Code* old_target = GetTargetAtAddress(address, constant_pool);
 #ifdef DEBUG
   // STORE_IC and KEYED_STORE_IC use Code::extra_ic_state() to mark
   // ICs as strict mode. The strict-ness of the IC must be preserved.
   if (old_target->kind() == Code::STORE_IC ||
       old_target->kind() == Code::KEYED_STORE_IC) {
     DCHECK(StoreIC::GetStrictMode(old_target->extra_ic_state()) ==
            StoreIC::GetStrictMode(target->extra_ic_state()));
   }
@@ skipping 102 matching lines @@
 inline Code* IC::get_host() {
   return isolate()
       ->inner_pointer_to_code_cache()
       ->GetCacheEntry(address())
       ->code;
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_INL_H_