1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/consts/huge-values.rs b/tests/ui/consts/huge-values.rs
new file mode 100644
index 000000000..70a5b10e9
--- /dev/null
+++ b/tests/ui/consts/huge-values.rs
@@ -0,0 +1,17 @@
+// build-pass
+// ignore-32bit
+
+// This test is a canary test that will essentially not compile in a reasonable time frame
+// (so it'll take hours) if any of the optimizations regress. With the optimizations, these compile
+// in milliseconds just as if the length were set to `1`.
+
+#[derive(Clone, Copy)]
+struct Foo;
+
+fn main() {
+    let _ = [(); 4_000_000_000];
+    let _ = [0u8; 4_000_000_000];
+    let _ = [Foo; 4_000_000_000];
+    let _ = [(Foo, (), Foo, ((), Foo, [0; 0])); 4_000_000_000];
+    let _ = [[0; 0]; 4_000_000_000];
+}