Increment max_iv_count on class based on number of set_iv in initialize (#6788)

We can loosely predict the number of ivar sets on a class based on the
number of iv set instructions in the initialize method. This should give
us a more accurate estimate to use for initial size pool allocation,
which should in turn give us more cache hits.

1 files changed, 1 insertions, 1 deletions

diff --git a/gc.c b/gc.c
index e7a1b6fb4f..dc35f77f34 100644
--- a/gc.c
+++ b/gc.c
@@ -3089,7 +3089,7 @@ rb_imemo_new_debug(enum imemo_type type, VALUE v1, VALUE v2, VALUE v3, VALUE v0,
 }
 #endif
 
-VALUE
+MJIT_FUNC_EXPORTED VALUE
 rb_class_allocate_instance(VALUE klass)
 {
     return rb_class_instance_allocate_internal(klass, T_OBJECT | ROBJECT_EMBED, RGENGC_WB_PROTECTED_OBJECT);