1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/incremental/hash-module-order.rs b/src/test/incremental/hash-module-order.rs
new file mode 100644
index 000000000..fe9af9eeb
--- /dev/null
+++ b/src/test/incremental/hash-module-order.rs
@@ -0,0 +1,28 @@
+// revisions: rpass1 rpass2
+// compile-flags: -Z incremental-ignore-spans -Z query-dep-graph
+
+// Tests that module hashing depends on the order of the items
+// (since the order is exposed through `Mod.item_ids`).
+// Changing the order of items (while keeping `Span`s the same)
+// should still result in `hir_owner` being invalidated.
+// Note that it's possible to keep the spans unchanged using
+// a proc-macro (e.g. producing the module via `quote!`)
+// but we use `-Z incremental-ignore-spans` for simplicity
+
+#![feature(rustc_attrs)]
+
+#[cfg(rpass1)]
+#[rustc_clean(cfg="rpass1",except="hir_owner")]
+mod foo {
+    struct First;
+    struct Second;
+}
+
+#[cfg(rpass2)]
+#[rustc_clean(cfg="rpass2",except="hir_owner")]
+mod foo {
+    struct Second;
+    struct First;
+}
+
+fn main() {}