IA32: Optimize instanceof...

src/v8-counters.h

 // Copyright 2010 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 229 matching lines @@
   SC(transcendental_cache_miss, V8.TranscendentalCacheMiss)           \
   SC(stack_interrupts, V8.StackInterrupts)                            \
   SC(runtime_profiler_ticks, V8.RuntimeProfilerTicks)                 \
   SC(other_ticks, V8.OtherTicks)                                      \
   SC(js_opt_ticks, V8.JsOptTicks)                                     \
   SC(js_non_opt_ticks, V8.JsNonoptTicks)                              \
   SC(js_other_ticks, V8.JsOtherTicks)                                 \
   SC(smi_checks_removed, V8.SmiChecksRemoved)                         \
   SC(map_checks_removed, V8.MapChecksRemoved)                         \
   SC(quote_json_char_count, V8.QuoteJsonCharacterCount)               \
-  SC(quote_json_char_recount, V8.QuoteJsonCharacterReCount)
+  SC(quote_json_char_recount, V8.QuoteJsonCharacterReCount)           \
+  SC(instance_of, V8.InstanceOf)                                      \

[Mads Ager (chromium), 2010/12/16 08:44:43]

Should we get rid of some of these counters before submit?

[Søren Thygesen Gjesse, 2010/12/16 08:58:28]

I would like to keep them for a couple of days while looking for more
optimizations. I will remove them later.

+  SC(instance_of_cache, V8.InstanceOfCache)                           \
+  SC(instance_of_stub_true, V8.InstanceOfStubTrue)                    \
+  SC(instance_of_stub_false, V8.InstanceOfStubFalse)                  \
+  SC(instance_of_stub_false_null, V8.InstanceOfStubFalseNull)         \
+  SC(instance_of_stub_false_string, V8.InstanceOfStubFalseString)     \
+  SC(instance_of_full, V8.InstanceOfFull)                             \
+  SC(instance_of_slow, V8.InstanceOfSlow)
 
 
 // This file contains all the v8 counters that are in use.
 class Counters : AllStatic {
  public:
 #define HT(name, caption) \
   static HistogramTimer name;
   HISTOGRAM_TIMER_LIST(HT)
 #undef HT
 
@@ skipping 17 matching lines @@
     stats_counter_count
   };
 
   // Sliding state window counters.
   static StatsCounter state_counters[];
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8_COUNTERS_H_