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/* XL compiler hardware transactional execution intrinsics
Copyright (C) 2013 Free Software Foundation, Inc.
Contributed by Andreas Krebbel (Andreas.Krebbel@de.ibm.com)
This file is part of GCC.
GCC 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.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef _HTMXLINTRIN_H
#define _HTMXLINTRIN_H
#include <stdint.h>
#include <htmintrin.h>
#ifdef __cplusplus
extern "C" {
#endif
/* These intrinsics are being made available for compatibility with
the IBM XL compiler. For documentation please see the "z/OS XL
C/C++ Programming Guide" publicly available on the web. */
/* FIXME: __TM_simple_begin and __TM_begin should be marked
__always_inline__ as well but this currently produces an error
since the tbegin builtins are "returns_twice" and setjmp_call_p
(calls.c) therefore identifies the functions as calling setjmp.
The tree inliner currently refuses to inline functions calling
setjmp. */
long
__TM_simple_begin ()
{
return __builtin_tbegin_nofloat (0);
}
long
__TM_begin (void* const tdb)
{
return __builtin_tbegin_nofloat (tdb);
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_end ()
{
return __builtin_tend ();
}
extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_abort ()
{
return __builtin_tabort (_HTM_FIRST_USER_ABORT_CODE);
}
extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_named_abort (unsigned char const code)
{
return __builtin_tabort ((int)_HTM_FIRST_USER_ABORT_CODE + code);
}
extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_non_transactional_store (void* const addr, long long const value)
{
__builtin_non_tx_store ((uint64_t*)addr, (uint64_t)value);
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_nesting_depth (void* const tdb_ptr)
{
int depth = __builtin_tx_nesting_depth ();
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
if (depth != 0)
return depth;
if (tdb->format != 1)
return 0;
return tdb->nesting_depth;
}
/* Transaction failure diagnostics */
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_user_abort (void* const tdb_ptr)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
if (tdb->format != 1)
return 0;
return !!(tdb->abort_code >= _HTM_FIRST_USER_ABORT_CODE);
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_named_user_abort (void* const tdb_ptr, unsigned char* code)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
if (tdb->format != 1)
return 0;
if (tdb->abort_code >= _HTM_FIRST_USER_ABORT_CODE)
{
*code = tdb->abort_code - _HTM_FIRST_USER_ABORT_CODE;
return 1;
}
return 0;
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_illegal (void* const tdb_ptr)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
return (tdb->format == 1
&& (tdb->abort_code == 4 /* unfiltered program interruption */
|| tdb->abort_code == 11 /* restricted instruction */));
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_footprint_exceeded (void* const tdb_ptr)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
return (tdb->format == 1
&& (tdb->abort_code == 7 /* fetch overflow */
|| tdb->abort_code == 8 /* store overflow */));
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_nested_too_deep (void* const tdb_ptr)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
return tdb->format == 1 && tdb->abort_code == 13; /* depth exceeded */
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_conflict (void* const tdb_ptr)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
return (tdb->format == 1
&& (tdb->abort_code == 9 /* fetch conflict */
|| tdb->abort_code == 10 /* store conflict */));
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_failure_persistent (long const result)
{
return result == _HTM_TBEGIN_PERSISTENT;
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_failure_address (void* const tdb_ptr)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
#ifdef __s390x__
return tdb->atia;
#else
return tdb->atia & 0xffffffff;
#endif
}
extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
__TM_failure_code (void* const tdb_ptr)
{
struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
return tdb->abort_code;
}
#ifdef __cplusplus
}
#endif
#endif /* _HTMXLINTRIN_H */
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