compile.c: fix stack consistency error

* compile.c (iseq_peephole_optimize): fix stack consistency error
  from return in loop, by adding extra `pop` when replacing `jump`
  with `leave`, which is never reached but needed to adjust sp
  calculation.  [ruby-core:84589] [Bug #14273]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index aa82f52987..8bf1627f3b 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -1128,6 +1128,15 @@ eom
     assert_equal(:begin, result)
   end
 
+  def test_return_in_loop
+    obj = Object.new
+    def obj.test
+      x = nil
+      return until x unless x
+    end
+    assert_nil obj.test
+  end
+
   private
 
   def not_label(x) @result = x; @not_label ||= nil end