[Isolates] Merge (7083,7111] from bleeding_edge.

src/safepoint-table.h

 // Copyright 2011 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 207 matching lines @@
                             int deoptimization_index);
 
   // Update the last safepoint with the size of the code generated until the
   // end of the gap following it.
   void SetPcAfterGap(int pc) {
     ASSERT(!deoptimization_info_.is_empty());
     int index = deoptimization_info_.length() - 1;
     deoptimization_info_[index].pc_after_gap = pc;
   }
 
+  // Get the end pc offset of the last safepoint, including the code generated
+  // until the end of the gap following it.
+  unsigned GetPcAfterGap() {
+    int index = deoptimization_info_.length();
+    if (index == 0) return 0;
+    return deoptimization_info_[index - 1].pc_after_gap;
+  }
+
   // Emit the safepoint table after the body. The number of bits per
   // entry must be enough to hold all the pointer indexes.
   void Emit(Assembler* assembler, int bits_per_entry);
 
   // Count the number of deoptimization points where the next
   // following deoptimization point comes less than limit bytes
   // after the end of this point's gap.
   int CountShortDeoptimizationIntervals(unsigned limit);
 
  private:
@@ skipping 13 matching lines @@
 
   unsigned offset_;
   bool emitted_;
 
   DISALLOW_COPY_AND_ASSIGN(SafepointTableBuilder);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SAFEPOINT_TABLE_H_