From 541e4340dd70de75d44c8ac3b5a4a69943042737 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Thu, 3 Dec 2020 00:01:10 -0800
Subject: Assert unit->iseq null out happens under the JIT/GC guard

---
 mjit.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mjit.c b/mjit.c
index c65355fba9..34f83a4633 100644
--- a/mjit.c
+++ b/mjit.c
@@ -119,6 +119,8 @@ mjit_free_iseq(const rb_iseq_t *iseq)
         return;
 
     CRITICAL_SECTION_START(4, "mjit_free_iseq");
+    RUBY_ASSERT_ALWAYS(in_gc);
+    RUBY_ASSERT_ALWAYS(!in_jit);
     if (iseq->body->jit_unit) {
         // jit_unit is not freed here because it may be referred by multiple
         // lists of units. `get_from_list` and `mjit_finish` do the job.
-- 
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