a64: fix crash on register stack mark/sweep pass
Author: Sergei Trofimovich slyfox@gentoo.org
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59307 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
a64: fix crash on register stack mark/sweep pass
[ruby-core:79928] [Bug #13284] [Fix GH-1625]
Author: Sergei Trofimovich slyfox@gentoo.org
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59307 b2dd03c8-39d4-4d8f-98ff-823fe69b080e