Revert "Rename kIs64BitArch with kRequiresCodeRange."

src/api.cc

 // Copyright 2012 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/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 447 matching lines @@
     set_max_old_space_size(i::Heap::kMaxOldSpaceSizeHighMemoryDevice);
     set_max_executable_size(i::Heap::kMaxExecutableSizeHighMemoryDevice);
   } else {
     set_max_semi_space_size(i::Heap::kMaxSemiSpaceSizeHugeMemoryDevice);
     set_max_old_space_size(i::Heap::kMaxOldSpaceSizeHugeMemoryDevice);
     set_max_executable_size(i::Heap::kMaxExecutableSizeHugeMemoryDevice);
   }
 
   set_max_available_threads(i::Max(i::Min(number_of_processors, 4u), 1u));
 
-  if (virtual_memory_limit > 0 && i::kRequiresCodeRange) {
+  if (virtual_memory_limit > 0 && i::kIs64BitArch) {
     // Reserve no more than 1/8 of the memory for the code range, but at most
-    // kMaximalCodeRangeSize.
+    // 512 MB.
     set_code_range_size(
-        i::Min(i::kMaximalCodeRangeSize / i::MB,
-               static_cast<int>((virtual_memory_limit >> 3) / i::MB)));
+        i::Min(512, static_cast<int>((virtual_memory_limit >> 3) / i::MB)));
   }
 }
 
 
 bool SetResourceConstraints(Isolate* v8_isolate,
                             ResourceConstraints* constraints) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
   int semi_space_size = constraints->max_semi_space_size();
   int old_space_size = constraints->max_old_space_size();
   int max_executable_size = constraints->max_executable_size();
@@ skipping 7096 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal