1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/pattern/usefulness/slice-pattern-const-3.rs b/tests/ui/pattern/usefulness/slice-pattern-const-3.rs
new file mode 100644
index 00000000000..2ca8323f002
--- /dev/null
+++ b/tests/ui/pattern/usefulness/slice-pattern-const-3.rs
@@ -0,0 +1,31 @@
+#![deny(unreachable_patterns)]
+
+fn main() {
+    let s = &["0x00"; 4][..]; //Slice of any value
+    const MAGIC_TEST: &[&str] = &["4", "5", "6", "7"]; //Const slice to pattern match with
+    match s {
+        MAGIC_TEST => (),
+        ["0x00", "0x00", "0x00", "0x00"] => (),
+        ["4", "5", "6", "7"] => (), //~ ERROR unreachable pattern
+        _ => (),
+    }
+    match s {
+        ["0x00", "0x00", "0x00", "0x00"] => (),
+        MAGIC_TEST => (),
+        ["4", "5", "6", "7"] => (), //~ ERROR unreachable pattern
+        _ => (),
+    }
+    match s {
+        ["0x00", "0x00", "0x00", "0x00"] => (),
+        ["4", "5", "6", "7"] => (),
+        MAGIC_TEST => (), //~ ERROR unreachable pattern
+        _ => (),
+    }
+    const FOO: [&str; 1] = ["boo"];
+    match ["baa"] {
+        ["0x00"] => (),
+        ["boo"] => (),
+        FOO => (), //~ ERROR unreachable pattern
+        _ => (),
+    }
+}