New array bounds check elimination pass (focused on induction variables and bitwise operations).

src/v8-counters.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 220 matching lines @@
   SC(math_log, V8.MathLog)                                            \
   SC(math_pow, V8.MathPow)                                            \
   SC(math_round, V8.MathRound)                                        \
   SC(math_sin, V8.MathSin)                                            \
   SC(math_sqrt, V8.MathSqrt)                                          \
   SC(math_tan, V8.MathTan)                                            \
   SC(transcendental_cache_hit, V8.TranscendentalCacheHit)             \
   SC(transcendental_cache_miss, V8.TranscendentalCacheMiss)           \
   SC(stack_interrupts, V8.StackInterrupts)                            \
   SC(runtime_profiler_ticks, V8.RuntimeProfilerTicks)                 \
+  SC(bounds_checks_covered, V8.BoundsChecksCovered)                   \

[titzer, 2013/07/18 12:22:58]

I don't know what covered and induced are supposed to mean. Do you mean added
and eliminated?

+  SC(bounds_checks_induced, V8.BoundsChecksInduced)                   \
   SC(new_space_bytes_available, V8.MemoryNewSpaceBytesAvailable)      \
   SC(new_space_bytes_committed, V8.MemoryNewSpaceBytesCommitted)      \
   SC(new_space_bytes_used, V8.MemoryNewSpaceBytesUsed)                \
   SC(old_pointer_space_bytes_available,                               \
      V8.MemoryOldPointerSpaceBytesAvailable)                          \
   SC(old_pointer_space_bytes_committed,                               \
      V8.MemoryOldPointerSpaceBytesCommitted)                          \
   SC(old_pointer_space_bytes_used, V8.MemoryOldPointerSpaceBytesUsed) \
   SC(old_data_space_bytes_available, V8.MemoryOldDataSpaceBytesAvailable) \
   SC(old_data_space_bytes_committed, V8.MemoryOldDataSpaceBytesCommitted) \
@@ skipping 137 matching lines @@
   friend class Isolate;
 
   explicit Counters(Isolate* isolate);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Counters);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8_COUNTERS_H_