Respect accumulative old generation memory limit in all spaces.

src/heap/heap.h

 // 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.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 
 #include "src/allocation.h"
@@ skipping 589 matching lines @@
   intptr_t MaxOldGenerationSize() { return max_old_generation_size_; }
   intptr_t MaxExecutableSize() { return max_executable_size_; }
 
   // Returns the capacity of the heap in bytes w/o growing. Heap grows when
   // more spaces are needed until it reaches the limit.
   intptr_t Capacity();
 
   // Returns the amount of memory currently committed for the heap.
   intptr_t CommittedMemory();
 
+  // Returns the amount of memory currently committed for the old space.
+  intptr_t CommittedOldGenerationMemory();
+
   // Returns the amount of executable memory currently committed for the heap.
   intptr_t CommittedMemoryExecutable();
 
   // Returns the amount of phyical memory currently committed for the heap.
   size_t CommittedPhysicalMemory();
 
   // Returns the maximum amount of memory ever committed for the heap.
   intptr_t MaximumCommittedMemory() { return maximum_committed_; }
 
   // Updates the maximum committed memory for the heap. Should be called
@@ skipping 63 matching lines @@
     return old_pointer_space_->allocation_limit_address();
   }
 
   Address* OldDataSpaceAllocationTopAddress() {
     return old_data_space_->allocation_top_address();
   }
   Address* OldDataSpaceAllocationLimitAddress() {
     return old_data_space_->allocation_limit_address();
   }
 
+  // TODO(hpayer): There is still a missmatch between capacity and actual
+  // committed memory size.
+  bool CanExpandOldGeneration(int size) {
+    return (CommittedOldGenerationMemory() + size) < MaxOldGenerationSize();
+  }
+
   // Returns a deep copy of the JavaScript object.
   // Properties and elements are copied too.
   // Optionally takes an AllocationSite to be appended in an AllocationMemento.
   MUST_USE_RESULT AllocationResult
       CopyJSObject(JSObject* source, AllocationSite* site = NULL);
 
   // Clear the Instanceof cache (used when a prototype changes).
   inline void ClearInstanceofCache();
 
   // Iterates the whole code space to clear all ICs of the given kind.
@@ skipping 1868 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_HEAP_H_