Bump MaxRegularSpaceAllocationSize to InitialSemiSpaceSize() * 4/5

src/objects.h

 // 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 2668 matching lines @@
   static const uint32_t kMaxGap = 1024;
 
   // Maximal length of fast elements array that won't be checked for
   // being dense enough on expansion.
   static const int kMaxUncheckedFastElementsLength = 5000;
 
   // Same as above but for old arrays. This limit is more strict. We
   // don't want to be wasteful with long lived objects.
   static const int kMaxUncheckedOldFastElementsLength = 500;
 
-  // TODO(2790): HAllocate currently always allocates fast backing stores
-  // in new space, where on x64 we can only fit ~98K elements. Keep this
-  // limit lower than that until HAllocate is made smarter.
-  static const int kInitialMaxFastElementArray = 95000;
+  // Note that Heap::MaxRegularSpaceAllocationSize() puts a limit on
+  // permissible values (see the ASSERT in heap.cc).
+  static const int kInitialMaxFastElementArray = 100000;
 
   static const int kFastPropertiesSoftLimit = 12;
   static const int kMaxFastProperties = 64;
   static const int kMaxInstanceSize = 255 * kPointerSize;
   // When extending the backing storage for property values, we increase
   // its size by more than the 1 entry necessary, so sequentially adding fields
   // to the same object requires fewer allocations and copies.
   static const int kFieldsAdded = 3;
 
   // Layout description.
@@ skipping 7531 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_