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-rw-r--r--src/test/ui/packed/packed-struct-optimized-enum.rs36
1 files changed, 0 insertions, 36 deletions
diff --git a/src/test/ui/packed/packed-struct-optimized-enum.rs b/src/test/ui/packed/packed-struct-optimized-enum.rs
deleted file mode 100644
index 5e1a1f518..000000000
--- a/src/test/ui/packed/packed-struct-optimized-enum.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-// run-pass
-#[repr(packed)]
-struct Packed<T: Copy>(#[allow(unused_tuple_struct_fields)] T);
-
-impl<T: Copy> Copy for Packed<T> {}
-impl<T: Copy> Clone for Packed<T> {
- fn clone(&self) -> Self { *self }
-}
-
-fn sanity_check_size<T: Copy>(one: T) {
- let two = [one, one];
- let stride = (&two[1] as *const _ as usize) - (&two[0] as *const _ as usize);
- let (size, align) = (std::mem::size_of::<T>(), std::mem::align_of::<T>());
- assert_eq!(stride, size);
- assert_eq!(size % align, 0);
-}
-
-fn main() {
- // This can fail if rustc and LLVM disagree on the size of a type.
- // In this case, `Option<Packed<(&(), u32)>>` was erroneously not
- // marked as packed despite needing alignment `1` and containing
- // its `&()` discriminant, which has alignment larger than `1`.
- sanity_check_size((Some(Packed((&(), 0))), true));
-
- // In #46769, `Option<(Packed<&()>, bool)>` was found to have
- // pointer alignment, without actually being aligned in size.
- // e.g., on 64-bit platforms, it had alignment `8` but size `9`.
- type PackedRefAndBool<'a> = (Packed<&'a ()>, bool);
- sanity_check_size::<Option<PackedRefAndBool>>(Some((Packed(&()), true)));
-
- // Make sure we don't pay for the enum optimization in size,
- // e.g., we shouldn't need extra padding after the packed data.
- assert_eq!(std::mem::align_of::<Option<PackedRefAndBool>>(), 1);
- assert_eq!(std::mem::size_of::<Option<PackedRefAndBool>>(),
- std::mem::size_of::<PackedRefAndBool>());
-}