Fix some stub calling asserts on x64.

src/heap.cc

 // Copyright 2011 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 2038 matching lines @@
   // gcc-4.4 has problem generating correct code of following snippet:
   // {  JSEntryStub stub;
   //    js_entry_code_ = *stub.GetCode();
   // }
   // {  JSConstructEntryStub stub;
   //    js_construct_entry_code_ = *stub.GetCode();
   // }
   // To workaround the problem, make separate functions without inlining.
   Heap::CreateJSEntryStub();
   Heap::CreateJSConstructEntryStub();
+
+  // Create stubs that should be there, so we don't unexpectedly have to
+  // create them if we need them during the creation of another stub.
+  // Stub creation mixes raw pointers and handles in an unsafe manner so
+  // we cannot create stubs while we are creating stubs.
+  CEntryStub ces(1);
+  ces.GetCode();
+
+  CodeStub::GenerateStubsAheadOfTime();
 }
 
 
 bool Heap::CreateInitialObjects() {
   Object* obj;
 
   // The -0 value must be set before NumberFromDouble works.
   { MaybeObject* maybe_obj = AllocateHeapNumber(-0.0, TENURED);
     if (!maybe_obj->ToObject(&obj)) return false;
   }
@@ skipping 4210 matching lines @@
 }
 
 
 void ExternalStringTable::TearDown() {
   new_space_strings_.Free();
   old_space_strings_.Free();
 }
 
 
 } }  // namespace v8::internal