message: Ignore ptr_bitops_tagging test on s390x
  This test requires dynamic stack re-alignment on s390x, which is
  currently unsupported (see issue
diff: @@ -46,5 +46,17 @@ index 4bc44e9..8e3c7a4 100644
  #[test]
  fn cell_allows_array_cycle() {
  +diff --git a/library/core/tests/atomic.rs b/library/core/tests/atomic.rs
  +index 13b12db..96fe4b9 100644
  +--- a/library/core/tests/atomic.rs
  ++++ b/library/core/tests/atomic.rs
  +@@ -185,6 +185,7 @@ fn ptr_bitops() {
  + }
  +
  + #[test]
  ++#[cfg_attr(target_arch = "s390x", ignore)] // s390x backend doesn't support stack alignment >8 bytes
  + #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
  + fn ptr_bitops_tagging() {
  + #[repr(align(16))]
  --
  2.21.0 (Apple Git-122)
  