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/* Copyright (C) 2012 Free Software Foundation, Inc.

   Contributed by Richard Henderson <rth@redhat.com>.

   This file is part of the GNU Transactional Memory Library (libitm).

   Libitm 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 of the License, or

   (at your option) any later version.

   Libitm 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/>.  */

namespace GTM HIDDEN {

typedef int v128 __attribute__((vector_size(16), may_alias, aligned(16)));

typedef struct gtm_jmpbuf

{

#if defined(__ALTIVEC__) || defined(__VSX__)

  v128 vr[12];                  /* vr20-vr31 */

  unsigned long long vscr;      /* long long for padding only */

#endif

#ifndef _SOFT_FLOAT

  double fr[18];                /* f14-f31 */

  double fpscr;

#endif

  unsigned long gr[18];         /* r14-r31 */

  void *cfa;

  unsigned long pc;

  unsigned long toc;            /* r2 on aix, r13 on darwin */

  unsigned long cr;

} gtm_jmpbuf;

/* The size of one line in hardware caches (in bytes). */

#if defined (__powerpc64__) || defined (__ppc64__)

# define HW_CACHELINE_SIZE 128

#else

# define HW_CACHELINE_SIZE 32

#endif

static inline void

cpu_relax (void)

{

  __asm volatile ("" : : : "memory");

}

} // namespace GTM