Remove the unused macro definition for AIX/zOS in abi.h.

llvm · Jul 4, 2024 · 88fc9eb · 88fc9eb
1 parent 29a4635
commit 88fc9eb
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diff --git a/libcxx/docs/ReleaseNotes/19.rst b/libcxx/docs/ReleaseNotes/19.rst
@@ -146,6 +146,7 @@ ABI Affecting Changes
   ``random_device`` could throw a ``system_error`` with this value. It now
   throws ``ENOMSG``.
 
+
 Build System Changes
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diff --git a/libcxx/include/__configuration/abi.h b/libcxx/include/__configuration/abi.h
@@ -115,10 +115,6 @@
 #  if defined(__FreeBSD__) && __FreeBSD__ < 14
 #    define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR
 #  endif
-// AIX and 64-bit MVS must use _FillHelper for ABI backward compatibility.
-#  if defined(_AIX) || (defined(__MVS__) && defined(__64BIT__))
-#    define _LIBCXX_IOS_USE_FILL_HELPER
-#  endif
 #endif
 
 // We had some bugs where we use [[no_unique_address]] together with construct_at,