1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/ui/consts/const-eval/conditional_array_execution.rs b/src/test/ui/consts/const-eval/conditional_array_execution.rs
new file mode 100644
index 000000000..bd517e568
--- /dev/null
+++ b/src/test/ui/consts/const-eval/conditional_array_execution.rs
@@ -0,0 +1,16 @@
+// build-fail
+
+#![warn(const_err)]
+
+const X: u32 = 5;
+const Y: u32 = 6;
+const FOO: u32 = [X - Y, Y - X][(X < Y) as usize];
+//~^ WARN any use of this value will cause an error
+//~| WARN this was previously accepted by the compiler but is being phased out
+
+fn main() {
+    println!("{}", FOO);
+    //~^ ERROR evaluation of constant value failed
+    //~| WARN erroneous constant used [const_err]
+    //~| WARN this was previously accepted by the compiler but is being phased out
+}