https://git.ruby-lang.org/ruby.git/commit/?id=ab5760307b

From ab5760307b730f3b418b3eae016c442ca4f57d14 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <tenderlove@r...>
Date: Wed, 3 Feb 2021 15:09:34 -0800
Subject: add a callback for when method cache changes

---
 ujit.h       | 1 +
 ujit_iface.c | 7 +++++++
 vm_method.c  | 1 +
 3 files changed, 9 insertions(+)

diff --git a/ujit.h b/ujit.h
index 3fb78200fd..a931ce0d3d 100644
--- a/ujit.h
+++ b/ujit.h
@@ -53,5 +53,6 @@ void rb_ujit_method_lookup_change(VALUE cme_or_cc); https://github.com/ruby/ruby/blob/trunk/ujit.h#L53
 void rb_ujit_compile_iseq(const rb_iseq_t *iseq);
 void rb_ujit_init(struct rb_ujit_options *options);
 void rb_ujit_bop_redefined(VALUE klass, const rb_method_entry_t *me, enum ruby_basic_operators bop);
+void rb_ujit_constant_state_changed(void);
 
 #endif // #ifndef UJIT_H
diff --git a/ujit_iface.c b/ujit_iface.c
index cf8113de00..2494d6c854 100644
--- a/ujit_iface.c
+++ b/ujit_iface.c
@@ -423,6 +423,13 @@ rb_ujit_bop_redefined(VALUE klass, const rb_method_entry_t *me, enum ruby_basic_ https://github.com/ruby/ruby/blob/trunk/ujit_iface.c#L423
     //fprintf(stderr, "bop redefined\n");
 }
 
+/* Called when the constant state changes */
+void
+rb_ujit_constant_state_changed(void)
+{
+    //fprintf(stderr, "bop redefined\n");
+}
+
 #if HAVE_LIBCAPSTONE
 static const rb_data_type_t ujit_disasm_type = {
     "UJIT/Disasm",
diff --git a/vm_method.c b/vm_method.c
index 544abca753..08c8013010 100644
--- a/vm_method.c
+++ b/vm_method.c
@@ -141,6 +141,7 @@ vm_cme_invalidate(rb_callable_method_entry_t *cme) https://github.com/ruby/ruby/blob/trunk/vm_method.c#L141
 void
 rb_clear_constant_cache(void)
 {
+    rb_ujit_constant_state_changed();
     INC_GLOBAL_CONSTANT_STATE();
 }
 
-- 
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