[heap] Enfoce tighter allocation limit for large object allocations.

src/heap/spaces.cc

 // Copyright 2011 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/heap/spaces.h"
 
 #include "src/base/bits.h"
 #include "src/base/platform/platform.h"
 #include "src/full-codegen/full-codegen.h"
 #include "src/heap/slots-buffer.h"
@@ skipping 3082 matching lines @@
     heap()->isolate()->memory_allocator()->Free(page);
   }
   SetUp();
 }
 
 
 AllocationResult LargeObjectSpace::AllocateRaw(int object_size,
                                                Executability executable) {
   // Check if we want to force a GC before growing the old space further.
   // If so, fail the allocation.
-  if (!heap()->always_allocate() &&
-      !heap()->CanExpandOldGeneration(object_size)) {
+  if (!heap()->CanExpandOldGeneration(object_size)) {
     return AllocationResult::Retry(identity());
   }
 
   LargePage* page = heap()->isolate()->memory_allocator()->AllocateLargePage(
       object_size, this, executable);
   if (page == NULL) return AllocationResult::Retry(identity());
   DCHECK(page->area_size() >= object_size);
 
   size_ += static_cast<int>(page->size());
   AccountCommitted(static_cast<intptr_t>(page->size()));
@@ skipping 250 matching lines @@
     object->ShortPrint();
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes());
 }
 
 #endif  // DEBUG
 }  // namespace internal
 }  // namespace v8