From 964427f82c5a8556daf4448b47cc65fb6d2a94b8 Mon Sep 17 00:00:00 2001
From: Francis Bogsanyi <francis.bogsanyi@shopify.com>
Date: Thu, 17 Nov 2016 12:59:27 -0500
Subject: Fix unsafe peephole optimization

Reported by https://hackerone.com/dkasak
---
 test/t/codegen.rb | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 test/t/codegen.rb

(limited to 'test/t/codegen.rb')

diff --git a/test/t/codegen.rb b/test/t/codegen.rb
new file mode 100644
index 000000000..f910d37fb
--- /dev/null
+++ b/test/t/codegen.rb
@@ -0,0 +1,11 @@
+##
+# Codegen tests
+
+assert('peephole optimization does not eliminate move whose result is reused') do
+  assert_raise LocalJumpError do
+    def method
+      yield
+    end
+    method(&a &&= 0)
+  end
+end
-- 
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