From 2e0f3b5546854c98174d4210c0e06c78c8294f98 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Mon, 30 Jan 2023 11:16:33 -0800
Subject: YJIT: Fix BorrowMutError on GC.compact (#7176)

YJIT: Fix BorrowMutError
---
 test/ruby/test_yjit.rb | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_yjit.rb b/test/ruby/test_yjit.rb
index 6b6ea6619e..d390a19cbc 100644
--- a/test/ruby/test_yjit.rb
+++ b/test/ruby/test_yjit.rb
@@ -1058,6 +1058,22 @@ class TestYJIT < Test::Unit::TestCase
     RUBY
   end
 
+  def test_gc_compact_cyclic_branch
+    assert_compiles(<<~'RUBY', result: 2)
+      def foo
+        i = 0
+        while i < 2
+          i += 1
+        end
+        i
+      end
+
+      foo
+      GC.compact
+      foo
+    RUBY
+  end
+
   private
 
   def code_gc_helpers
-- 
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