k0kubun	2019-03-29 23:44:09 +0900 (Fri, 29 Mar 2019)

  New Revision: 67382

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=67382

  Log:
    Add mjit_compile_failures debug counter

  Modified files:
    trunk/debug_counter.h
    trunk/mjit_worker.c
Index: debug_counter.h
===================================================================
--- debug_counter.h	(revision 67381)
+++ debug_counter.h	(revision 67382)
@@ -275,6 +275,9 @@ RB_DEBUG_COUNTER(mjit_length_unit_queue) https://github.com/ruby/ruby/blob/trunk/debug_counter.h#L275
 RB_DEBUG_COUNTER(mjit_length_active_units)
 RB_DEBUG_COUNTER(mjit_length_compact_units)
 
+/* Other MJIT counters */
+RB_DEBUG_COUNTER(mjit_compile_failures)
+
 /* load (not implemented yet) */
 /*
 RB_DEBUG_COUNTER(load_files)
Index: mjit_worker.c
===================================================================
--- mjit_worker.c	(revision 67381)
+++ mjit_worker.c	(revision 67382)
@@ -1241,6 +1241,7 @@ mjit_worker(void) https://github.com/ruby/ruby/blob/trunk/mjit_worker.c#L1241
         if (unit) {
             // JIT compile
             mjit_func_t func = convert_unit_to_func(unit);
+            RB_DEBUG_COUNTER_INC_IF(mjit_compile_failures, func == (mjit_func_t)NOT_COMPILED_JIT_ISEQ_FUNC);
 
             // `mjit_copy_cache_from_main_thread` in `mjit_compile` may wait for a long time
             // and worker may be stopped during the compilation.

--
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