1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/mir/issue-76248.rs b/src/test/ui/mir/issue-76248.rs
new file mode 100644
index 000000000..18473e79e
--- /dev/null
+++ b/src/test/ui/mir/issue-76248.rs
@@ -0,0 +1,29 @@
+// This used to ICE during codegen after MIR inlining of g into f.
+// The root cause was a missing fold of length constant in Rvalue::Repeat.
+// Regression test for #76248.
+//
+// build-pass
+// compile-flags: -Zmir-opt-level=3
+
+const N: usize = 1;
+
+pub struct Elem<M> {
+    pub x: [usize; N],
+    pub m: M,
+}
+
+pub fn f() -> Elem<()> {
+    g(())
+}
+
+#[inline]
+pub fn g<M>(m: M) -> Elem<M> {
+    Elem {
+        x: [0; N],
+        m,
+    }
+}
+
+pub fn main() {
+    f();
+}