1 files changed, 39 insertions, 0 deletions
diff --git a/tests/ui/consts/const-err2.rs b/tests/ui/consts/const-err2.rs
new file mode 100644
index 000000000..db49ec25a
--- /dev/null
+++ b/tests/ui/consts/const-err2.rs
@@ -0,0 +1,39 @@
+// needed because negating int::MIN will behave differently between
+// optimized compilation and unoptimized compilation and thus would
+// lead to different lints being emitted
+
+// revisions: noopt opt opt_with_overflow_checks
+//[noopt]compile-flags: -C opt-level=0
+//[opt]compile-flags: -O
+//[opt_with_overflow_checks]compile-flags: -C overflow-checks=on -O
+
+// build-fail
+
+#![feature(rustc_attrs)]
+
+fn black_box<T>(_: T) {
+    unimplemented!()
+}
+
+fn main() {
+    let a = -i8::MIN;
+    //~^ ERROR arithmetic operation will overflow
+    let a_i128 = -i128::MIN;
+    //~^ ERROR arithmetic operation will overflow
+    let b = 200u8 + 200u8 + 200u8;
+    //~^ ERROR arithmetic operation will overflow
+    let b_i128 = i128::MIN - i128::MAX;
+    //~^ ERROR arithmetic operation will overflow
+    let c = 200u8 * 4;
+    //~^ ERROR arithmetic operation will overflow
+    let d = 42u8 - (42u8 + 1);
+    //~^ ERROR arithmetic operation will overflow
+    let _e = [5u8][1];
+    //~^ ERROR operation will panic
+    black_box(a);
+    black_box(a_i128);
+    black_box(b);
+    black_box(b_i128);
+    black_box(c);
+    black_box(d);
+}