Store transitioned JSArray maps in global context

src/x64/builtins-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 989 matching lines @@
 static void AllocateEmptyJSArray(MacroAssembler* masm,
                                  Register array_function,
                                  Register result,
                                  Register scratch1,
                                  Register scratch2,
                                  Register scratch3,
                                  Label* gc_required) {
   const int initial_capacity = JSArray::kPreallocatedArrayElements;
   STATIC_ASSERT(initial_capacity >= 0);
 
-  // Load the initial map from the array function.
-  __ movq(scratch1, FieldOperand(array_function,
-                                 JSFunction::kPrototypeOrInitialMapOffset));
+  __ LoadGlobalInitialConstructedArrayMap(array_function, scratch2, scratch1);
 
   // Allocate the JSArray object together with space for a fixed array with the
   // requested elements.
   int size = JSArray::kSize;
   if (initial_capacity > 0) {
     size += FixedArray::SizeFor(initial_capacity);
   }
   __ AllocateInNewSpace(size,
                         result,
                         scratch2,
@@ skipping 78 matching lines @@
 // register elements_array is scratched.
 static void AllocateJSArray(MacroAssembler* masm,
                             Register array_function,  // Array function.
                             Register array_size,  // As a smi, cannot be 0.
                             Register result,
                             Register elements_array,
                             Register elements_array_end,
                             Register scratch,
                             bool fill_with_hole,
                             Label* gc_required) {
-  // Load the initial map from the array function.
-  __ movq(elements_array,
-          FieldOperand(array_function,
-                       JSFunction::kPrototypeOrInitialMapOffset));
+  __ LoadGlobalInitialConstructedArrayMap(array_function,
+                                          scratch,
+                                          elements_array);
 
   if (FLAG_debug_code) {  // Assert that array size is not zero.
     __ testq(array_size, array_size);
     __ Assert(not_zero, "array size is unexpectedly 0");
   }
 
   // Allocate the JSArray object together with space for a FixedArray with the
   // requested elements.
   SmiIndex index =
       masm->SmiToIndex(kScratchRegister, array_size, kPointerSizeLog2);
@@ skipping 491 matching lines @@
   Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR);
   generator.Generate();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64