From 32289fbed439e00ce8624834ced7a6bc3a12d70b Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 1 Oct 2015 02:57:43 +0000
Subject: vm_args.c: GC guard

* vm_args.c (vm_caller_setup_arg_block): prevent newly created
  ifunc object from GC.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51991 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_symbol.rb | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 7b1dbd3ae7..b62e7538c8 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -117,6 +117,11 @@ class TestSymbol < Test::Unit::TestCase
       ary_ids = ary.collect{|x| x.object_id }
       assert_equal ary_ids, ary.collect(&:object_id)
     end
+
+    assert_ruby_status([], <<-"end;", timeout: 0.1)
+      GC.stress = true
+      true.tap(&:itself)
+    end;
   end
 
   def test_call
-- 
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