1 files changed, 47 insertions, 1 deletions
diff --git a/tests/ui/layout/debug.rs b/tests/ui/layout/debug.rs
index a282e7123..46171880a 100644
--- a/tests/ui/layout/debug.rs
+++ b/tests/ui/layout/debug.rs
@@ -1,8 +1,9 @@
 // normalize-stderr-test "pref: Align\([1-8] bytes\)" -> "pref: $$PREF_ALIGN"
-#![feature(never_type, rustc_attrs, type_alias_impl_trait)]
+#![feature(never_type, rustc_attrs, type_alias_impl_trait, repr_simd)]
 #![crate_type = "lib"]
 
 #[rustc_layout(debug)]
+#[derive(Copy, Clone)]
 enum E { Foo, Bar(!, i32, i32) } //~ ERROR: layout_of
 
 #[rustc_layout(debug)]
@@ -17,6 +18,51 @@ type Test = Result<i32, i32>; //~ ERROR: layout_of
 #[rustc_layout(debug)]
 type T = impl std::fmt::Debug; //~ ERROR: layout_of
 
+#[rustc_layout(debug)]
+pub union V { //~ ERROR: layout_of
+    a: [u16; 0],
+    b: u8,
+}
+
+#[rustc_layout(debug)]
+pub union W { //~ ERROR: layout_of
+    b: u8,
+    a: [u16; 0],
+}
+
+#[rustc_layout(debug)]
+pub union Y { //~ ERROR: layout_of
+    b: [u8; 0],
+    a: [u16; 0],
+}
+
+#[rustc_layout(debug)]
+#[repr(packed(1))]
+union P1 { x: u32 } //~ ERROR: layout_of
+
+#[rustc_layout(debug)]
+#[repr(packed(1))]
+union P2 { x: (u32, u32) } //~ ERROR: layout_of
+
+#[repr(simd)]
+#[derive(Copy, Clone)]
+struct F32x4(f32, f32, f32, f32);
+
+#[rustc_layout(debug)]
+#[repr(packed(1))]
+union P3 { x: F32x4 } //~ ERROR: layout_of
+
+#[rustc_layout(debug)]
+#[repr(packed(1))]
+union P4 { x: E } //~ ERROR: layout_of
+
+#[rustc_layout(debug)]
+#[repr(packed(1))]
+union P5 { zst: [u16; 0], byte: u8 } //~ ERROR: layout_of
+
+#[rustc_layout(debug)]
+type X = std::mem::MaybeUninit<u8>; //~ ERROR: layout_of
+
 fn f() -> T {
     0i32
 }