crankshaft support for api method calls

src/x64/stub-cache-x64.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 419 matching lines @@
   Address function_address = v8::ToCData<Address>(api_call_info->callback());
   __ Move(
       api_function_address, function_address, RelocInfo::EXTERNAL_REFERENCE);
 
   // Jump to stub.
   CallApiFunctionStub stub(restore_context, call_data_undefined, argc);
   __ TailCallStub(&stub);
 }
 
 
-// Generates call to API function.
-static void GenerateFastApiCall(MacroAssembler* masm,
-                                const CallOptimization& optimization,
-                                int argc,
-                                Handle<Map> map_to_holder,
-                                CallOptimization::HolderLookup holder_lookup) {
-  Counters* counters = masm->isolate()->counters();
-  __ IncrementCounter(counters->call_const_fast_api(), 1);
-
-  // Move holder to a register
-  Register holder_reg = rax;
-  switch (holder_lookup) {
-    case CallOptimization::kHolderIsReceiver:
-      {
-        ASSERT(map_to_holder.is_null());
-        StackArgumentsAccessor args(rsp, argc);
-        __ movp(holder_reg, args.GetReceiverOperand());
-      }
-      break;
-    case CallOptimization::kHolderIsPrototypeOfMap:
-      {
-        Handle<JSObject> holder(JSObject::cast(map_to_holder->prototype()));
-        if (!masm->isolate()->heap()->InNewSpace(*holder)) {
-          __ Move(holder_reg, holder);
-        } else {
-          __ Move(holder_reg, map_to_holder);
-          __ movp(holder_reg, FieldOperand(holder_reg, Map::kPrototypeOffset));
-        }
-      }
-     break;
-    case CallOptimization::kHolderNotFound:
-      UNREACHABLE();
-  }
-  GenerateFastApiCallBody(masm,
-                          optimization,
-                          argc,
-                          holder_reg,
-                          false);
-}
-
-
 // Generate call to api function.
 static void GenerateFastApiCall(MacroAssembler* masm,
                                 const CallOptimization& optimization,
                                 Register receiver,
                                 Register scratch1,
                                 int argc,
                                 Register* values) {
   __ PopReturnAddressTo(scratch1);
   // receiver
   __ push(receiver);
@@ skipping 87 matching lines @@
 
     // Check that the maps from interceptor's holder to constant function's
     // holder haven't changed and thus we can use cached constant function.
     if (*interceptor_holder != lookup->holder()) {
       stub_compiler_->CheckPrototypes(
           IC::CurrentTypeOf(interceptor_holder, masm->isolate()), holder,
           handle(lookup->holder()), scratch1, scratch2, scratch3,
           name, miss_label);
     }
 
-    Handle<Map> lookup_map;
-    CallOptimization::HolderLookup holder_lookup =
-        CallOptimization::kHolderNotFound;
-    if (optimization.is_simple_api_call() &&
-        !lookup->holder()->IsGlobalObject()) {
-      lookup_map = optimization.LookupHolderOfExpectedType(
-          object, object, interceptor_holder, &holder_lookup);
-      if (holder_lookup == CallOptimization::kHolderNotFound) {
-        lookup_map =
-            optimization.LookupHolderOfExpectedType(
-                object,
-                interceptor_holder,
-                Handle<JSObject>(lookup->holder()),
-                &holder_lookup);
-      }
-    }
-
-    // Invoke function.
-    if (holder_lookup != CallOptimization::kHolderNotFound) {
-      int argc = arguments_.immediate();
-      GenerateFastApiCall(masm,
-                          optimization,
-                          argc,
-                          lookup_map,
-                          holder_lookup);
-    } else {
-      Handle<JSFunction> fun = optimization.constant_function();
-      stub_compiler_->GenerateJumpFunction(object, fun);
-    }
+    Handle<JSFunction> fun = optimization.constant_function();
+    stub_compiler_->GenerateJumpFunction(object, fun);
 
     // Invoke a regular function.
     __ bind(&regular_invoke);
   }
 
   void CompileRegular(MacroAssembler* masm,
                       Handle<JSObject> object,
                       Register receiver,
                       Register scratch1,
                       Register scratch2,
@@ skipping 767 matching lines @@
                            index.translate(holder), Representation::Tagged());
   GenerateJumpFunction(object, rdi, &miss);
 
   HandlerFrontendFooter(&miss);
 
   // Return the generated code.
   return GetCode(Code::FAST, name);
 }
 
 
-Handle<Code> CallStubCompiler::CompileFastApiCall(
-    const CallOptimization& optimization,
-    Handle<Object> object,
-    Handle<JSObject> holder,
-    Handle<Cell> cell,
-    Handle<JSFunction> function,
-    Handle<String> name) {
-  ASSERT(optimization.is_simple_api_call());
-  // Bail out if object is a global object as we don't want to
-  // repatch it to global receiver.
-  if (object->IsGlobalObject()) return Handle<Code>::null();
-  if (!cell.is_null()) return Handle<Code>::null();
-  if (!object->IsJSObject()) return Handle<Code>::null();
-  Handle<JSObject> receiver = Handle<JSObject>::cast(object);
-  CallOptimization::HolderLookup holder_lookup =
-      CallOptimization::kHolderNotFound;
-  Handle<Map> lookup_map = optimization.LookupHolderOfExpectedType(
-      receiver, receiver, holder, &holder_lookup);
-  if (holder_lookup == CallOptimization::kHolderNotFound) {
-    return Handle<Code>::null();
-  }
-
-  Label miss;
-  GenerateNameCheck(name, &miss);
-
-  const int argc = arguments().immediate();
-  StackArgumentsAccessor args(rsp, argc);
-  __ movp(rdx, args.GetReceiverOperand());
-
-  // Check that the receiver isn't a smi.
-  __ JumpIfSmi(rdx, &miss);
-
-  Counters* counters = isolate()->counters();
-  __ IncrementCounter(counters->call_const(), 1);
-
-  // Check that the maps haven't changed and find a Holder as a side effect.
-  CheckPrototypes(IC::CurrentTypeOf(object, isolate()), rdx, holder,
-                  rbx, rax, rdi, name, &miss);
-
-  GenerateFastApiCall(masm(), optimization, argc, lookup_map, holder_lookup);
-
-  HandlerFrontendFooter(&miss);
-
-  // Return the generated code.
-  return GetCode(function);
-}
-
-
 void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
   Label success;
   // Check that the object is a boolean.
   __ CompareRoot(object, Heap::kTrueValueRootIndex);
   __ j(equal, &success);
   __ CompareRoot(object, Heap::kFalseValueRootIndex);
   __ j(not_equal, miss);
   __ bind(&success);
 }
 
@@ skipping 130 matching lines @@
   return GetCode(Code::FAST, name);
 }
 
 
 Handle<Code> CallStubCompiler::CompileCallGlobal(
     Handle<JSObject> object,
     Handle<GlobalObject> holder,
     Handle<PropertyCell> cell,
     Handle<JSFunction> function,
     Handle<Name> name) {
-  if (HasCustomCallGenerator(function)) {
-    Handle<Code> code = CompileCustomCall(
-        object, holder, cell, function, Handle<String>::cast(name),
-        Code::NORMAL);
-    // A null handle means bail out to the regular compiler code below.
-    if (!code.is_null()) return code;
-  }
-
   Label miss;
   HandlerFrontendHeader(object, holder, name, RECEIVER_MAP_CHECK, &miss);
   // Potentially loads a closure that matches the shared function info of the
   // function, rather than function.
   GenerateLoadFunctionFromCell(cell, function, &miss);
   Counters* counters = isolate()->counters();
   __ IncrementCounter(counters->call_global_inline(), 1);
   GenerateJumpFunction(object, rdi, function);
   HandlerFrontendFooter(&miss);
 
@@ skipping 358 matching lines @@
   // -----------------------------------
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64