Version 4.2.77.17 (cherry-pick)

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <sstream>
 
 #include "src/v8.h"
 
@@ skipping 2373 matching lines @@
 
 HInstruction* HGraphBuilder::BuildUncheckedMonomorphicElementAccess(
     HValue* checked_object,
     HValue* key,
     HValue* val,
     bool is_js_array,
     ElementsKind elements_kind,
     PropertyAccessType access_type,
     LoadKeyedHoleMode load_mode,
     KeyedAccessStoreMode store_mode) {
+  DCHECK(top_info()->IsStub() || checked_object->IsCompareMap() ||
+         checked_object->IsCheckMaps());
   DCHECK((!IsExternalArrayElementsKind(elements_kind) &&
               !IsFixedTypedArrayElementsKind(elements_kind)) ||
          !is_js_array);
   // No GVNFlag is necessary for ElementsKind if there is an explicit dependency
   // on a HElementsTransition instruction. The flag can also be removed if the
   // map to check has FAST_HOLEY_ELEMENTS, since there can be no further
   // ElementsKind transitions. Finally, the dependency can be removed for stores
   // for FAST_ELEMENTS, since a transition to HOLEY elements won't change the
   // generated store code.
   if ((elements_kind == FAST_HOLEY_ELEMENTS) ||
@@ skipping 5990 matching lines @@
 
       {
         NoObservableSideEffectsScope scope(this);
 
         length = Add<HLoadNamedField>(
             array, nullptr, HObjectAccess::ForArrayLength(elements_kind));
 
         new_size = AddUncasted<HAdd>(length, graph()->GetConstant1());
 
         bool is_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
-        BuildUncheckedMonomorphicElementAccess(array, length,
-                                               value_to_push, is_array,
-                                               elements_kind, STORE,
-                                               NEVER_RETURN_HOLE,
-                                               STORE_AND_GROW_NO_TRANSITION);
+        HValue* checked_array = Add<HCheckMaps>(array, receiver_map);
+        BuildUncheckedMonomorphicElementAccess(
+            checked_array, length, value_to_push, is_array, elements_kind,
+            STORE, NEVER_RETURN_HOLE, STORE_AND_GROW_NO_TRANSITION);
 
         if (!ast_context()->IsEffect()) Push(new_size);
         Add<HSimulate>(expr->id(), REMOVABLE_SIMULATE);
         if (!ast_context()->IsEffect()) Drop(1);
       }
 
       ast_context()->ReturnValue(new_size);
       return true;
     }
     case kArrayShift: {
@@ skipping 337 matching lines @@
   return true;
 }
 
 
 void HOptimizedGraphBuilder::HandleIndirectCall(Call* expr, HValue* function,
                                                 int arguments_count) {
   Handle<JSFunction> known_function;
   int args_count_no_receiver = arguments_count - 1;
   if (function->IsConstant() &&
       HConstant::cast(function)->handle(isolate())->IsJSFunction()) {
-    HValue* receiver = environment()->ExpressionStackAt(args_count_no_receiver);
-    Handle<Map> receiver_map;
-    if (receiver->IsConstant() &&
-        HConstant::cast(receiver)->handle(isolate())->IsHeapObject()) {
-      receiver_map =
-          handle(Handle<HeapObject>::cast(
-                     HConstant::cast(receiver)->handle(isolate()))->map());
-    }
-
     known_function =
         Handle<JSFunction>::cast(HConstant::cast(function)->handle(isolate()));
-    if (TryInlineBuiltinMethodCall(expr, known_function, receiver_map,
+    if (TryInlineBuiltinMethodCall(expr, known_function, Handle<Map>(),
                                    args_count_no_receiver)) {
       if (FLAG_trace_inlining) {
         PrintF("Inlining builtin ");
         known_function->ShortPrint();
         PrintF("\n");
       }
       return;
     }
 
     if (TryInlineIndirectCall(known_function, expr, args_count_no_receiver)) {
@@ skipping 4643 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal