Use type feedback for Array (non-constructor) call sites.

src/stub-cache.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 626 matching lines @@
   if (probe->IsCode()) return Handle<Code>::cast(probe);
 
   CallStubCompiler compiler(isolate_, argc, kind, extra_state, cache_holder);
   Handle<Code> code =
       compiler.CompileCallConstant(object, holder, name, check, function);
   code->set_check_type(check);
   ASSERT(flags == code->flags());
   PROFILE(isolate_,
           CodeCreateEvent(CALL_LOGGER_TAG(kind, CALL_IC_TAG), *code, *name));
   GDBJIT(AddCode(GDBJITInterface::CALL_IC, *name, *code));
-  JSObject::UpdateMapCodeCache(stub_holder, name, code);
+
+  if (CallStubCompiler::CanBeCached(function)) {
+    JSObject::UpdateMapCodeCache(stub_holder, name, code);
+  }
   return code;
 }
 
 
 Handle<Code> StubCache::ComputeCallField(int argc,
                                          Code::Kind kind,
                                          Code::ExtraICState extra_state,
                                          Handle<Name> name,
                                          Handle<Object> object,
                                          Handle<JSObject> holder,
@@ skipping 88 matching lines @@
                        isolate_);
   if (probe->IsCode()) return Handle<Code>::cast(probe);
 
   CallStubCompiler compiler(isolate(), argc, kind, extra_state, cache_holder);
   Handle<Code> code =
       compiler.CompileCallGlobal(receiver, holder, cell, function, name);
   ASSERT(flags == code->flags());
   PROFILE(isolate(),
           CodeCreateEvent(CALL_LOGGER_TAG(kind, CALL_IC_TAG), *code, *name));
   GDBJIT(AddCode(GDBJITInterface::CALL_IC, *name, *code));
-  JSObject::UpdateMapCodeCache(stub_holder, name, code);
+  if (CallStubCompiler::CanBeCached(function)) {
+    JSObject::UpdateMapCodeCache(stub_holder, name, code);
+  }
   return code;
 }
 
 
 static void FillCache(Isolate* isolate, Handle<Code> code) {
   Handle<UnseededNumberDictionary> dictionary =
       UnseededNumberDictionary::Set(isolate->factory()->non_monomorphic_cache(),
                                     code->flags(),
                                     code);
   isolate->heap()->public_set_non_monomorphic_cache(*dictionary);
@@ skipping 1200 matching lines @@
 #define CALL_GENERATOR_CASE(name) if (id == k##name) return true;
     CUSTOM_CALL_IC_GENERATORS(CALL_GENERATOR_CASE)
 #undef CALL_GENERATOR_CASE
   }
 
   CallOptimization optimization(function);
   return optimization.is_simple_api_call();
 }
 
 
+bool CallStubCompiler::CanBeCached(Handle<JSFunction> function) {
+  if (function->shared()->HasBuiltinFunctionId()) {
+    BuiltinFunctionId id = function->shared()->builtin_function_id();
+#define CALL_GENERATOR_CASE(name) if (id == k##name) return false;
+    SITE_SPECIFIC_CALL_GENERATORS(CALL_GENERATOR_CASE)
+#undef CALL_GENERATOR_CASE
+  }
+
+  return true;
+}
+
+
 Handle<Code> CallStubCompiler::CompileCustomCall(
     Handle<Object> object,
     Handle<JSObject> holder,
     Handle<Cell> cell,
     Handle<JSFunction> function,
-    Handle<String> fname) {
+    Handle<String> fname,
+    Code::StubType type) {
   ASSERT(HasCustomCallGenerator(function));
 
   if (function->shared()->HasBuiltinFunctionId()) {
     BuiltinFunctionId id = function->shared()->builtin_function_id();
 #define CALL_GENERATOR_CASE(name)                               \
     if (id == k##name) {                                        \
       return CallStubCompiler::Compile##name##Call(object,      \
                                                    holder,      \
                                                    cell,        \
                                                    function,    \
-                                                   fname);      \
+                                                   fname,       \
+                                                   type);       \
     }
     CUSTOM_CALL_IC_GENERATORS(CALL_GENERATOR_CASE)
 #undef CALL_GENERATOR_CASE
   }
   CallOptimization optimization(function);
   ASSERT(optimization.is_simple_api_call());
   return CompileFastApiCall(optimization,
                             object,
                             holder,
                             cell,
@@ skipping 89 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal