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Unified Diff: gcc/libstdc++-v3/config/cpu/hppa/atomicity.h

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git
Patch Set: Created 10 years, 5 months ago
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Index: gcc/libstdc++-v3/config/cpu/hppa/atomicity.h
diff --git a/gcc/libstdc++-v3/config/cpu/hppa/atomicity.h b/gcc/libstdc++-v3/config/cpu/hppa/atomicity.h
deleted file mode 100644
index 6a167e955fed3e0588fac22f6998ba08140c6198..0000000000000000000000000000000000000000
--- a/gcc/libstdc++-v3/config/cpu/hppa/atomicity.h
+++ /dev/null
@@ -1,91 +0,0 @@
-// Low-level functions for atomic operations: PA-RISC version -*- C++ -*-
-
-// Copyright (C) 2002, 2004, 2005, 2009 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 <bits/c++config.h>
-#include <ext/atomicity.h>
-
-_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
-
- template<int _Inst>
- struct _Atomicity_lock
- {
- static volatile int _S_atomicity_lock;
- };
-
- template<int _Inst>
- volatile int
- _Atomicity_lock<_Inst>::_S_atomicity_lock __attribute__ ((aligned (16))) = 1;
-
- // Because of the lack of weak support when using the hpux som
- // linker, we explicitly instantiate the atomicity lock.
- template volatile int _Atomicity_lock<0>::_S_atomicity_lock;
-
- int
- __attribute__ ((__unused__))
- __exchange_and_add(volatile _Atomic_word* __mem, int __val)
- {
- _Atomic_word result;
- int tmp;
- volatile int& lock = _Atomicity_lock<0>::_S_atomicity_lock;
-
- __asm__ __volatile__ ("ldcw 0(%1),%0\n\t"
- "cmpib,<>,n 0,%0,.+20\n\t"
- "ldw 0(%1),%0\n\t"
- "cmpib,= 0,%0,.-4\n\t"
- "nop\n\t"
- "b,n .-20"
- : "=&r" (tmp)
- : "r" (&lock)
- : "memory");
-
- result = *__mem;
- *__mem = result + __val;
- __asm__ __volatile__ ("stw %1,0(%0)"
- : : "r" (&lock), "r" (tmp) : "memory");
- return result;
- }
-
- void
- __attribute__ ((__unused__))
- __atomic_add(volatile _Atomic_word* __mem, int __val)
- {
- int tmp;
- volatile int& lock = _Atomicity_lock<0>::_S_atomicity_lock;
-
- __asm__ __volatile__ ("ldcw 0(%1),%0\n\t"
- "cmpib,<>,n 0,%0,.+20\n\t"
- "ldw 0(%1),%0\n\t"
- "cmpib,= 0,%0,.-4\n\t"
- "nop\n\t"
- "b,n .-20"
- : "=&r" (tmp)
- : "r" (&lock)
- : "memory");
-
- *__mem += __val;
- __asm__ __volatile__ ("stw %1,0(%0)"
- : : "r" (&lock), "r" (tmp) : "memory");
- }
-
-_GLIBCXX_END_NAMESPACE
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