Prevent mjit length counters from being 0

It seems that `debug_counter_show_results_at_exit` could be called
earlier than `mjit_finish` sometimes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67380 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/mjit_worker.c b/mjit_worker.c
index 5c1f24b329..51acac3471 100644
--- a/mjit_worker.c
+++ b/mjit_worker.c
@@ -327,6 +327,10 @@ mjit_warning(const char *format, ...)
 static void
 add_to_list(struct rb_mjit_unit *unit, struct rb_mjit_unit_list *list)
 {
+    RB_DEBUG_COUNTER_INC_IF(mjit_length_unit_queue, list == &unit_queue);
+    RB_DEBUG_COUNTER_INC_IF(mjit_length_active_units, list == &active_units);
+    RB_DEBUG_COUNTER_INC_IF(mjit_length_compact_units, list == &compact_units);
+
     list_add_tail(&list->head, &unit->unode);
     list->length++;
 }
@@ -334,6 +338,12 @@ add_to_list(struct rb_mjit_unit *unit, struct rb_mjit_unit_list *list)
 static void
 remove_from_list(struct rb_mjit_unit *unit, struct rb_mjit_unit_list *list)
 {
+#if USE_DEBUG_COUNTER
+    rb_debug_counter_add(RB_DEBUG_COUNTER_mjit_length_unit_queue, -1, list == &unit_queue);
+    rb_debug_counter_add(RB_DEBUG_COUNTER_mjit_length_active_units, -1, list == &active_units);
+    rb_debug_counter_add(RB_DEBUG_COUNTER_mjit_length_compact_units, -1, list == &compact_units);
+#endif
+
     list_del(&unit->unode);
     list->length--;
 }