1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/const-generics/generic_const_exprs/subexprs_are_const_evalutable.rs b/tests/ui/const-generics/generic_const_exprs/subexprs_are_const_evalutable.rs
new file mode 100644
index 000000000..d6574a3aa
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/subexprs_are_const_evalutable.rs
@@ -0,0 +1,17 @@
+// run-pass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+fn make_array<const M: usize>() -> [(); M + 1] {
+    [(); M + 1]
+}
+
+fn foo<const N: usize>() -> [(); (N * 2) + 1] {
+    make_array::<{ N * 2 }>()
+}
+
+fn main() {
+    assert_eq!(foo::<10>(), [(); 10 * 2 + 1])
+}
+
+// Tests that N * 2 is considered const_evalutable by appearing as part of the (N * 2) + 1 const