diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs
index 5c826b9993f86..61c713c9e81cf 100644
--- a/library/core/src/array/mod.rs
+++ b/library/core/src/array/mod.rs
@@ -889,6 +889,7 @@ impl<T> Guard<'_, T> {
 }
 
 impl<T> Drop for Guard<'_, T> {
+    #[inline]
     fn drop(&mut self) {
         debug_assert!(self.initialized <= self.array_mut.len());
 
diff --git a/tests/codegen/array-from_fn.rs b/tests/codegen/array-from_fn.rs
new file mode 100644
index 0000000000000..7202d0c67e690
--- /dev/null
+++ b/tests/codegen/array-from_fn.rs
@@ -0,0 +1,13 @@
+//@ revisions: NORMAL OPT
+//@ [NORMAL] compile-flags: -C opt-level=0 -C debuginfo=2
+//@ [OPT] compile-flags: -C opt-level=s -C debuginfo=0
+
+#![crate_type = "lib"]
+#![feature(array_from_fn)]
+
+#[no_mangle]
+pub fn iota() -> [u8; 16] {
+    // OPT-NOT: core..array..Guard
+    // NORMAL: core..array..Guard
+    std::array::from_fn(|i| i as _)
+}