From 5b420a9dc476d23e54a0b3733cad173866a1fb1d Mon Sep 17 00:00:00 2001
From: Nadrieril <nadrieril+git@gmail.com>
Date: Sat, 16 Nov 2019 16:43:55 +0000
Subject: [PATCH] Add regression test for issue 53820

---
 .../pattern/issue-53820-slice-pattern-large-array.rs   | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 src/test/ui/pattern/issue-53820-slice-pattern-large-array.rs

diff --git a/src/test/ui/pattern/issue-53820-slice-pattern-large-array.rs b/src/test/ui/pattern/issue-53820-slice-pattern-large-array.rs
new file mode 100644
index 00000000000..38c830e4d69
--- /dev/null
+++ b/src/test/ui/pattern/issue-53820-slice-pattern-large-array.rs
@@ -0,0 +1,10 @@
+// check-pass
+#![feature(slice_patterns)]
+
+fn main() {
+    const LARGE_SIZE: usize = 1024 * 1024;
+    let [..] = [0u8; LARGE_SIZE];
+    match [0u8; LARGE_SIZE] {
+        [..] => {}
+    }
+}