From 8dce62218aee641d0d8384b0b73bfcbf073f21ae Mon Sep 17 00:00:00 2001
From: rhe <rhe@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 26 May 2017 01:50:20 +0000
Subject: [PATCH] compile.c: fix possible use of uninitialized value

LABEL::unremovable added by r58810 is not initialized by
new_label_body(), making the optimization unstable.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 compile.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compile.c b/compile.c
index 3939ea0360..a2a80c919a 100644
--- a/compile.c
+++ b/compile.c
@@ -1019,6 +1019,7 @@ new_label_body(rb_iseq_t *iseq, long line)
     labelobj->refcnt = 0;
     labelobj->set = 0;
     labelobj->rescued = LABEL_RESCUE_NONE;
+    labelobj->unremovable = 0;
     return labelobj;
 }