1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/box/large-allocator-ice.rs b/src/test/ui/box/large-allocator-ice.rs
new file mode 100644
index 000000000..b3a882ff0
--- /dev/null
+++ b/src/test/ui/box/large-allocator-ice.rs
@@ -0,0 +1,29 @@
+// build-pass
+#![feature(allocator_api)]
+#![allow(unused_must_use)]
+
+use std::alloc::Allocator;
+
+struct BigAllocator([usize; 2]);
+
+unsafe impl Allocator for BigAllocator {
+    fn allocate(
+        &self,
+        _: std::alloc::Layout,
+    ) -> Result<std::ptr::NonNull<[u8]>, std::alloc::AllocError> {
+        todo!()
+    }
+    unsafe fn deallocate(&self, _: std::ptr::NonNull<u8>, _: std::alloc::Layout) {
+        todo!()
+    }
+}
+
+fn main() {
+    Box::new_in((), &std::alloc::Global);
+    Box::new_in((), BigAllocator([0; 2]));
+    generic_function(0);
+}
+
+fn generic_function<T>(val: T) {
+    *Box::new_in(val, &std::alloc::Global);
+}