add debug counter to count call reusing cases.

ruby · Dec 17, 2019 · fbe2299 · fbe2299
1 parent 618d091
commit fbe2299
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diff --git a/debug_counter.h b/debug_counter.h
@@ -46,6 +46,7 @@ RB_DEBUG_COUNTER(mc_miss_by_distinct)
 RB_DEBUG_COUNTER(mc_miss_by_refine)
 RB_DEBUG_COUNTER(mc_miss_by_visi)
 RB_DEBUG_COUNTER(mc_miss_spurious)
+RB_DEBUG_COUNTER(mc_miss_reuse_call)
 
 /*
  * call cache fastpath usage

diff --git a/vm_insnhelper.c b/vm_insnhelper.c
@@ -1458,6 +1458,7 @@ calccall(const struct rb_call_data *cd, const rb_callable_method_entry_t *me)
     }
     else {
         RB_DEBUG_COUNTER_INC(mc_miss_spurious);
+        (void)RB_DEBUG_COUNTER_INC_IF(mc_miss_reuse_call, cc->call != vm_call_general);
         return cc->call;
     }
 }