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Diffstat (limited to 'config/cpu/alpha/atomicity.h')
| -rw-r--r-- | config/cpu/alpha/atomicity.h | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/config/cpu/alpha/atomicity.h b/config/cpu/alpha/atomicity.h deleted file mode 100644 index 66bd328..0000000 --- a/config/cpu/alpha/atomicity.h +++ /dev/null @@ -1,76 +0,0 @@ -// Low-level functions for atomic operations: Alpha version -*- C++ -*- - -// Copyright (C) 1999, 2000, 2001, 2003 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 2, 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. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -#ifndef _GLIBCXX_ATOMICITY_H -#define _GLIBCXX_ATOMICITY_H 1 - -/* @@@ With gas we can play nice .subsection games to get the - non-predicted branch pointing forward. But Digital assemblers - don't understand those directives. This isn't a terribly - important issue, so just ignore it. */ - -typedef int _Atomic_word; - -static inline _Atomic_word -__attribute__ ((__unused__)) -__exchange_and_add (volatile _Atomic_word* __mem, int __val) -{ - register int __result, __tmp; - - __asm__ __volatile__ ( - "\n$Lxadd_%=:\n\t" - "ldl_l %0,%3\n\t" - "addl %0,%4,%1\n\t" - "stl_c %1,%2\n\t" - "beq %1,$Lxadd_%=\n\t" - "mb" - : "=&r" (__result), "=&r" (__tmp), "=m" (*__mem) - : "m" (*__mem), "r" (__val)); - - return __result; -} - -static inline void -__attribute__ ((__unused__)) -__atomic_add (volatile _Atomic_word* __mem, int __val) -{ - register _Atomic_word __result; - - __asm__ __volatile__ ( - "\n$Ladd_%=:\n\t" - "ldl_l %0,%2\n\t" - "addl %0,%3,%0\n\t" - "stl_c %0,%1\n\t" - "beq %0,$Ladd_%=\n\t" - "mb" - : "=&r" (__result), "=m" (*__mem) - : "m" (*__mem), "r" (__val)); -} - -#endif /* atomicity.h */ |