From 75d951e1adf515b6ef549c4cf12432dfbe1b8ac5 Mon Sep 17 00:00:00 2001
From: flip1995 <hello@philkrones.com>
Date: Fri, 27 Sep 2019 15:36:20 +0200
Subject: [PATCH] Add regression test for ICE #4579

---
 tests/ui/ice-4579.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 tests/ui/ice-4579.rs

diff --git a/tests/ui/ice-4579.rs b/tests/ui/ice-4579.rs
new file mode 100644
index 000000000..2e7e279f8
--- /dev/null
+++ b/tests/ui/ice-4579.rs
@@ -0,0 +1,13 @@
+#![allow(clippy::single_match)]
+
+use std::ptr;
+
+fn main() {
+    match Some(0_usize) {
+        Some(_) => {
+            let s = "012345";
+            unsafe { ptr::read(s.as_ptr().offset(1) as *const [u8; 5]) };
+        },
+        _ => (),
+    };
+}