1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/consts/control-flow/exhaustive-c-like-enum-match.rs b/src/test/ui/consts/control-flow/exhaustive-c-like-enum-match.rs
new file mode 100644
index 000000000..4320133df
--- /dev/null
+++ b/src/test/ui/consts/control-flow/exhaustive-c-like-enum-match.rs
@@ -0,0 +1,29 @@
+// Test for <https://github.com/rust-lang/rust/issues/66756>
+
+// check-pass
+
+enum E {
+    A,
+    B,
+    C
+}
+
+const fn f(e: E) {
+    match e {
+        E::A => {}
+        E::B => {}
+        E::C => {}
+    }
+}
+
+const fn g(e: E) -> usize {
+    match e {
+        _ => 0
+    }
+}
+
+fn main() {
+    const X: usize = g(E::C);
+    assert_eq!(X, 0);
+    assert_eq!(g(E::A), 0);
+}