1 files changed, 14 insertions, 0 deletions
diff --git a/tests/ui/array-slice-vec/huge-largest-array.rs b/tests/ui/array-slice-vec/huge-largest-array.rs
new file mode 100644
index 00000000000..9e78162c813
--- /dev/null
+++ b/tests/ui/array-slice-vec/huge-largest-array.rs
@@ -0,0 +1,14 @@
+// run-pass
+
+
+use std::mem::size_of;
+
+#[cfg(target_pointer_width = "32")]
+pub fn main() {
+    assert_eq!(size_of::<[u8; (1 << 31) - 1]>(), (1 << 31) - 1);
+}
+
+#[cfg(target_pointer_width = "64")]
+pub fn main() {
+    assert_eq!(size_of::<[u8; (1 << 47) - 1]>(), (1 << 47) - 1);
+}