From b1fa180ea31d1d3030e088b873b248c1a39c22ac Mon Sep 17 00:00:00 2001
From: ksss <co000ri@gmail.com>
Date: Mon, 26 Sep 2016 12:17:46 +0900
Subject: Fix unexpected behavior with break

```
def yie
  yield
end

def bre
  yie {
    1+1
    break
  }
end

p bre #=> display 2, but should be nil
```
---
 mrbgems/mruby-compiler/core/codegen.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c
index 6e9c3c147..efdd77888 100644
--- a/mrbgems/mruby-compiler/core/codegen.c
+++ b/mrbgems/mruby-compiler/core/codegen.c
@@ -2852,6 +2852,9 @@ loop_break(codegen_scope *s, node *tree)
       loop->pc3 = tmp;
     }
     else {
+      if (!tree) {
+        genop(s, MKOP_A(OP_LOADNIL, cursp()));
+      }
       genop(s, MKOP_AB(OP_RETURN, cursp(), OP_R_BREAK));
     }
   }
-- 
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