PPC: Fixed RememberedSetRemoveRange to have chunk->size > PageSize

test/cctest/heap/test-heap.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 6817 matching lines @@
               base::OS::CommitPageSize());
   CHECK_EQ(shrinked_size, chunk->CommittedPhysicalMemory());
 }
 
 TEST(RememberedSetRemoveRange) {
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   Heap* heap = CcTest::heap();
   Isolate* isolate = heap->isolate();
 
-  Handle<FixedArray> array = isolate->factory()->NewFixedArray(500000);
+  Handle<FixedArray> array = isolate->factory()->NewFixedArray(Page::kPageSize /
+                                                              kPointerSize);
   MemoryChunk* chunk = MemoryChunk::FromAddress(array->address());
   CHECK(chunk->owner()->identity() == LO_SPACE);
   Address start = array->address();
   // Maps slot to boolean indicator of whether the slot should be in the set.
   std::map<Address, bool> slots;
   slots[start + 0] = true;
   slots[start + kPointerSize] = true;
   slots[start + Page::kPageSize - kPointerSize] = true;
   slots[start + Page::kPageSize] = true;
   slots[start + Page::kPageSize + kPointerSize] = true;
@@ skipping 36 matching lines @@
       chunk, chunk->area_end() - kPointerSize, chunk->area_end());
   slots[chunk->area_end() - kPointerSize] = false;
   RememberedSet<OLD_TO_NEW>::Iterate(chunk, [&slots](Address addr) {
     CHECK(slots[addr]);
     return KEEP_SLOT;
   });
 }
 
 }  // namespace internal
 }  // namespace v8