1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/consts/const-eval/no_lint_for_statically_known_error.rs b/tests/ui/consts/const-eval/no_lint_for_statically_known_error.rs
new file mode 100644
index 000000000..910ca3c4b
--- /dev/null
+++ b/tests/ui/consts/const-eval/no_lint_for_statically_known_error.rs
@@ -0,0 +1,18 @@
+// check-pass
+
+// if `X` were used instead of `x`, `X - 10` would result in a lint.
+// This file should never produce a lint, no matter how the const
+// propagator is improved.
+
+#![deny(warnings)]
+
+const X: u32 = 5;
+
+fn main() {
+    let x = X;
+    if x > 10 {
+        println!("{}", x - 10);
+    } else {
+        println!("{}", 10 - x);
+    }
+}