// We have exactly one non-ZST field.
(Some((i, field)), None, None) => {
// Field fills the struct and it has a scalar or scalar pair ABI.
- if offsets[i].bytes() == 0 && size == field.size {
+ if offsets[i].bytes() == 0 &&
+ align.abi() == field.align.abi() &&
+ size == field.size {
match field.abi {
// For plain scalars we can't unpack newtypes
// for `#[repr(C)]`, as that affects C ABIs.
// CHECK: call void @llvm.memcpy.{{.*}}(i8* %{{.*}}, i8* %{{.*}}, i{{[0-9]+}} 5, i32 1, i1 false)
*pair2 = *pair1;
}
+
+#[repr(packed)]
+#[derive(Copy, Clone)]
+pub struct PackedNestedPair((u32, u32));
+
+// CHECK-LABEL: @pkd_nested_pair
+#[no_mangle]
+pub fn pkd_nested_pair(pair1: &mut PackedNestedPair, pair2: &mut PackedNestedPair) {
+// CHECK: call void @llvm.memcpy.{{.*}}(i8* %{{.*}}, i8* %{{.*}}, i{{[0-9]+}} 8, i32 1, i1 false)
+ *pair2 = *pair1;
+}