1 files changed, 38 insertions, 0 deletions
diff --git a/tests/ui/const-generics/generic_const_exprs/issue-83765.rs b/tests/ui/const-generics/generic_const_exprs/issue-83765.rs
new file mode 100644
index 000000000..fac811d13
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/issue-83765.rs
@@ -0,0 +1,38 @@
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+trait TensorDimension {
+    const DIM: usize;
+}
+
+trait TensorSize: TensorDimension {
+    fn size(&self) -> [usize; Self::DIM];
+}
+
+trait Broadcastable: TensorSize + Sized {
+    type Element;
+    fn lazy_updim<const NEWDIM: usize>(&self, size: [usize; NEWDIM]) {}
+}
+
+struct BMap<'a, R, T: Broadcastable, F: Fn(T::Element) -> R, const DIM: usize> {
+    reference: &'a T,
+    closure: F,
+}
+
+impl<'a, R, T: Broadcastable, F: Fn(T::Element) -> R, const DIM: usize> TensorDimension
+    for BMap<'a, R, T, F, DIM>
+{
+    const DIM: usize = DIM;
+}
+impl<'a, R, T: Broadcastable, F: Fn(T::Element) -> R, const DIM: usize> TensorSize
+    for BMap<'a, R, T, F, DIM>
+{
+    fn size(&self) -> [usize; DIM] {
+        //~^ ERROR: method not compatible with trait [E0308]
+        self.reference.size()
+        //~^ ERROR: unconstrained generic constant
+        //~| ERROR: mismatched types
+    }
+}
+
+fn main() {}