https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115606
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is a reduced testcase for aarch64:
```
class Foo {
public:
int a, b[1024];
Foo(int a, int b);
};
Foo __attribute__((noinline,noclone,noipa))
callee (int i);
Foo __attribute__((noinline,noclone,noipa))
caller (int i)
{
return callee (i + 1);
}
```
Which gives:
;; Cannot tail-call: callee returns a structure: callee (_1) [return slot
optimization] [tail call]
Which is the same as the original one for arm:
;; Cannot tail-call: callee returns a structure: callee (_1) [return slot
optimization] [tail call]
