1 files changed, 34 insertions, 0 deletions
diff --git a/tests/ui/structs-enums/struct-order-of-eval-4.rs b/tests/ui/structs-enums/struct-order-of-eval-4.rs
new file mode 100644
index 00000000000..547df631846
--- /dev/null
+++ b/tests/ui/structs-enums/struct-order-of-eval-4.rs
@@ -0,0 +1,34 @@
+// run-pass
+// Checks that struct-literal expression order-of-eval is as expected
+// even when no Drop-implementations are involved.
+
+use std::sync::atomic::{Ordering, AtomicUsize};
+
+struct W { wrapped: u32 }
+struct S { f0: W, _f1: i32 }
+
+pub fn main() {
+    const VAL: u32 = 0x89AB_CDEF;
+    let w = W { wrapped: VAL };
+    let s = S {
+        _f1: { event(0x01); 23 },
+        f0: { event(0x02); w },
+    };
+    assert_eq!(s.f0.wrapped, VAL);
+    let actual = event_log();
+    let expect = 0x01_02;
+    assert!(expect == actual,
+            "expect: 0x{:x} actual: 0x{:x}", expect, actual);
+}
+
+static LOG: AtomicUsize = AtomicUsize::new(0);
+
+fn event_log() -> usize {
+    LOG.load(Ordering::SeqCst)
+}
+
+fn event(tag: u8) {
+    let old_log = LOG.load(Ordering::SeqCst);
+    let new_log = (old_log << 8) + tag as usize;
+    LOG.store(new_log, Ordering::SeqCst);
+}