Load API call data from function instead of embedding it in handler.

src/ic/arm64/handler-compiler-arm64.cc

 // Copyright 2014 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/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
@@ skipping 150 matching lines @@
     DCHECK(!receiver.is(store_parameter));
     DCHECK(!scratch.is(store_parameter));
     queue.Queue(store_parameter);
   }
   queue.PushQueued();
 
   DCHECK(optimization.is_simple_api_call());
 
   // Abi for CallApiFunctionStub.
   Register callee = x0;
-  Register call_data = x4;
+  Register data = x4;
   Register holder = x2;
   Register api_function_address = x1;
 
   // Put callee in place.
   __ LoadAccessor(callee, accessor_holder, accessor_index,
                   is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER);
 
   // Put holder in place.
   CallOptimization::HolderLookup holder_lookup;
   Handle<JSObject> api_holder =
       optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup);
   switch (holder_lookup) {
     case CallOptimization::kHolderIsReceiver:
       __ Mov(holder, receiver);
       break;
     case CallOptimization::kHolderFound:
       __ LoadObject(holder, api_holder);
       break;
     case CallOptimization::kHolderNotFound:
       UNREACHABLE();
       break;
   }
 
   Isolate* isolate = masm->isolate();
   Handle<CallHandlerInfo> api_call_info = optimization.api_call_info();
-  Handle<Object> call_data_obj(api_call_info->data(), isolate);
-
   bool call_data_undefined = false;
-  // Put call_data in place.
-  if (isolate->heap()->InNewSpace(*call_data_obj)) {
-    __ LoadObject(call_data, api_call_info);
-    __ Ldr(call_data, FieldMemOperand(call_data, CallHandlerInfo::kDataOffset));
-  } else if (call_data_obj->IsUndefined()) {
+  // Put call data in place.
+  if (api_call_info->data()->IsUndefined()) {
     call_data_undefined = true;
-    __ LoadRoot(call_data, Heap::kUndefinedValueRootIndex);
+    __ LoadRoot(data, Heap::kUndefinedValueRootIndex);
   } else {
-    __ LoadObject(call_data, call_data_obj);
+    __ Ldr(data,
+           FieldMemOperand(callee, JSFunction::kSharedFunctionInfoOffset));
+    __ Ldr(data,
+           FieldMemOperand(data, SharedFunctionInfo::kFunctionDataOffset));
+    __ Ldr(data, FieldMemOperand(data, FunctionTemplateInfo::kCallCodeOffset));
+    __ Ldr(data, FieldMemOperand(data, CallHandlerInfo::kDataOffset));
   }
 
   // Put api_function_address in place.
   Address function_address = v8::ToCData<Address>(api_call_info->callback());
   ApiFunction fun(function_address);
   ExternalReference ref = ExternalReference(
       &fun, ExternalReference::DIRECT_API_CALL, masm->isolate());
   __ Mov(api_function_address, ref);
 
   // Jump to stub.
@@ skipping 537 matching lines @@
   // Return the generated code.
   return GetCode(kind(), Code::FAST, name);
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32