This file is no longer used, because we always use the definitions in
config/cpu/generic/atomicity_builtins/atomicity.h now.
libstdc++-v3/ChangeLog:
* config/cpu/i486/atomicity.h: Removed.
---
Tested x86_64-linux.
libstdc++-v3/config/cpu/i486/atomicity.h | 52 ------------------------
1 file changed, 52 deletions(-)
delete mode 100644 libstdc++-v3/config/cpu/i486/atomicity.h
diff --git a/libstdc++-v3/config/cpu/i486/atomicity.h
b/libstdc++-v3/config/cpu/i486/atomicity.h
deleted file mode 100644
index 092ea9d1e892..000000000000
--- a/libstdc++-v3/config/cpu/i486/atomicity.h
+++ /dev/null
@@ -1,52 +0,0 @@
-// Low-level functions for atomic operations: x86, x >= 4 version -*- C++ -*-
-
-// Copyright (C) 1999-2025 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library. This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-
-// Under Section 7 of GPL version 3, you are granted additional
-// permissions described in the GCC Runtime Library Exception, version
-// 3.1, as published by the Free Software Foundation.
-
-// You should have received a copy of the GNU General Public License and
-// a copy of the GCC Runtime Library Exception along with this program;
-// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-// <http://www.gnu.org/licenses/>.
-
-#include <ext/atomicity.h>
-
-namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
-{
-_GLIBCXX_BEGIN_NAMESPACE_VERSION
-
- _Atomic_word
- __attribute__ ((__unused__))
- __exchange_and_add(volatile _Atomic_word* __mem, int __val) throw ()
- {
- register _Atomic_word __result;
- __asm__ __volatile__ ("lock; xadd{l} {%0,%1|%1,%0}"
- : "=r" (__result), "=m" (*__mem)
- : "0" (__val), "m" (*__mem));
- return __result;
- }
-
- void
- __attribute__ ((__unused__))
- __atomic_add(volatile _Atomic_word* __mem, int __val) throw ()
- {
- __asm__ __volatile__ ("lock; add{l} {%1,%0|%0,%1}"
- : "=m" (*__mem) : "ir" (__val), "m" (*__mem));
- }
-
-_GLIBCXX_END_NAMESPACE_VERSION
-} // namespace
-
--
2.51.0
