1 files changed, 0 insertions, 74 deletions
diff --git a/src/test/ui/structs-enums/enum-null-pointer-opt.rs b/src/test/ui/structs-enums/enum-null-pointer-opt.rs
deleted file mode 100644
index 85fa1eac2e2..00000000000
--- a/src/test/ui/structs-enums/enum-null-pointer-opt.rs
+++ /dev/null
@@ -1,74 +0,0 @@
-// run-pass
-#![feature(transparent_unions)]
-
-use std::mem::size_of;
-use std::num::NonZeroUsize;
-use std::ptr::NonNull;
-use std::rc::Rc;
-use std::sync::Arc;
-
-trait Trait { fn dummy(&self) { } }
-trait Mirror { type Image; }
-impl<T> Mirror for T { type Image = T; }
-struct ParamTypeStruct<T>(#[allow(unused_tuple_struct_fields)] T);
-struct AssocTypeStruct<T>(#[allow(unused_tuple_struct_fields)] <T as Mirror>::Image);
-#[repr(transparent)]
-union MaybeUninitUnion<T: Copy> {
-    _value: T,
-    _uninit: (),
-}
-
-fn main() {
-    // Functions
-    assert_eq!(size_of::<fn(isize)>(), size_of::<Option<fn(isize)>>());
-    assert_eq!(size_of::<extern "C" fn(isize)>(), size_of::<Option<extern "C" fn(isize)>>());
-
-    // Slices - &str / &[T] / &mut [T]
-    assert_eq!(size_of::<&str>(), size_of::<Option<&str>>());
-    assert_eq!(size_of::<&[isize]>(), size_of::<Option<&[isize]>>());
-    assert_eq!(size_of::<&mut [isize]>(), size_of::<Option<&mut [isize]>>());
-
-    // Traits - Box<Trait> / &Trait / &mut Trait
-    assert_eq!(size_of::<Box<dyn Trait>>(), size_of::<Option<Box<dyn Trait>>>());
-    assert_eq!(size_of::<&dyn Trait>(), size_of::<Option<&dyn Trait>>());
-    assert_eq!(size_of::<&mut dyn Trait>(), size_of::<Option<&mut dyn Trait>>());
-
-    // Pointers - Box<T>
-    assert_eq!(size_of::<Box<isize>>(), size_of::<Option<Box<isize>>>());
-
-    // The optimization can't apply to raw pointers or unions with a ZST field.
-    assert!(size_of::<Option<*const isize>>() != size_of::<*const isize>());
-    assert!(Some(std::ptr::null::<isize>()).is_some()); // Can't collapse None to null
-    assert_ne!(size_of::<fn(isize)>(), size_of::<Option<MaybeUninitUnion<fn(isize)>>>());
-    assert_ne!(size_of::<&str>(), size_of::<Option<MaybeUninitUnion<&str>>>());
-    assert_ne!(size_of::<NonNull<isize>>(), size_of::<Option<MaybeUninitUnion<NonNull<isize>>>>());
-
-    struct Foo {
-        _a: Box<isize>
-    }
-    struct Bar(#[allow(unused_tuple_struct_fields)] Box<isize>);
-
-    // Should apply through structs
-    assert_eq!(size_of::<Foo>(), size_of::<Option<Foo>>());
-    assert_eq!(size_of::<Bar>(), size_of::<Option<Bar>>());
-    // and tuples
-    assert_eq!(size_of::<(u8, Box<isize>)>(), size_of::<Option<(u8, Box<isize>)>>());
-    // and fixed-size arrays
-    assert_eq!(size_of::<[Box<isize>; 1]>(), size_of::<Option<[Box<isize>; 1]>>());
-
-    // Should apply to NonZero
-    assert_eq!(size_of::<NonZeroUsize>(), size_of::<Option<NonZeroUsize>>());
-    assert_eq!(size_of::<NonNull<i8>>(), size_of::<Option<NonNull<i8>>>());
-
-    // Should apply to types that use NonZero internally
-    assert_eq!(size_of::<Vec<isize>>(), size_of::<Option<Vec<isize>>>());
-    assert_eq!(size_of::<Arc<isize>>(), size_of::<Option<Arc<isize>>>());
-    assert_eq!(size_of::<Rc<isize>>(), size_of::<Option<Rc<isize>>>());
-
-    // Should apply to types that have NonZero transitively
-    assert_eq!(size_of::<String>(), size_of::<Option<String>>());
-
-    // Should apply to types where the pointer is substituted
-    assert_eq!(size_of::<&u8>(), size_of::<Option<ParamTypeStruct<&u8>>>());
-    assert_eq!(size_of::<&u8>(), size_of::<Option<AssocTypeStruct<&u8>>>());
-}