/*
 * kmp_os.h -- KPTS runtime header file.
 * $Revision: 43473 $
 * $Date: 2014-09-26 15:02:57 -0500 (Fri, 26 Sep 2014) $
 */


//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.txt for details.
//
//===----------------------------------------------------------------------===//


#ifndef KMP_OS_H
#define KMP_OS_H

#include <stdlib.h>

#define KMP_FTN_PLAIN   1
#define KMP_FTN_APPEND  2
#define KMP_FTN_UPPER   3
/*
#define KMP_FTN_PREPEND 4
#define KMP_FTN_UAPPEND 5
*/

#define KMP_PTR_SKIP    (sizeof(void*))

/* -------------------------- Compiler variations ------------------------ */

#define KMP_OFF				0
#define KMP_ON				1

#define KMP_MEM_CONS_VOLATILE		0
#define KMP_MEM_CONS_FENCE		1

#ifndef KMP_MEM_CONS_MODEL
# define KMP_MEM_CONS_MODEL	 KMP_MEM_CONS_VOLATILE
#endif

/* ------------------------- Compiler recognition ---------------------- */
#define KMP_COMPILER_ICC 0
#define KMP_COMPILER_GCC 0
#define KMP_COMPILER_CLANG 0
#define KMP_COMPILER_MSVC 0

#if defined( __INTEL_COMPILER )
# undef KMP_COMPILER_ICC
# define KMP_COMPILER_ICC 1
#elif defined( __clang__ )
# undef KMP_COMPILER_CLANG
# define KMP_COMPILER_CLANG 1
#elif defined( __GNUC__ )
# undef KMP_COMPILER_GCC
# define KMP_COMPILER_GCC 1
#elif defined( _MSC_VER )
# undef KMP_COMPILER_MSVC
# define KMP_COMPILER_MSVC 1
#else
# error Unknown compiler
#endif

/* ---------------------- Operating system recognition ------------------- */

#define KMP_OS_LINUX    0
#define KMP_OS_FREEBSD  0
#define KMP_OS_DARWIN   0
#define KMP_OS_WINDOWS  0
#define KMP_OS_CNK      0
#define KMP_OS_UNIX     0  /* disjunction of KMP_OS_LINUX, KMP_OS_DARWIN etc. */

#define KMP_ARCH_X86        0
#define KMP_ARCH_X86_64     0
#define KMP_ARCH_PPC64      0
#define KMP_ARCH_AARCH64    0

#ifdef _WIN32
# undef KMP_OS_WINDOWS
# define KMP_OS_WINDOWS 1
#endif

#if ( defined __APPLE__ && defined __MACH__ )
# undef KMP_OS_DARWIN
# define KMP_OS_DARWIN 1
#endif

// in some ppc64 linux installations, only the second condition is met
#if ( defined __linux )
# undef KMP_OS_LINUX
# define KMP_OS_LINUX 1
#elif ( defined __linux__)
# undef KMP_OS_LINUX
# define KMP_OS_LINUX 1
#else
#endif

#if ( defined __FreeBSD__ )
# undef KMP_OS_FREEBSD
# define KMP_OS_FREEBSD 1
#endif

#if ( defined __bgq__ )
# undef KMP_OS_CNK
# define KMP_OS_CNK 1
#endif

#if (1 != KMP_OS_LINUX + KMP_OS_FREEBSD + KMP_OS_DARWIN + KMP_OS_WINDOWS)
# error Unknown OS
#endif

#if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_DARWIN
# undef KMP_OS_UNIX
# define KMP_OS_UNIX 1
#endif

#if (KMP_OS_LINUX || KMP_OS_WINDOWS) && !KMP_OS_CNK && !KMP_ARCH_PPC64
# define KMP_AFFINITY_SUPPORTED 1
#else
# define KMP_AFFINITY_SUPPORTED 0
#endif

#if KMP_OS_WINDOWS
# if defined _M_AMD64
#  undef KMP_ARCH_X86_64
#  define KMP_ARCH_X86_64 1
# else
#  undef KMP_ARCH_X86
#  define KMP_ARCH_X86 1
# endif
#endif

#if KMP_OS_UNIX
# if defined __x86_64
#  undef KMP_ARCH_X86_64
#  define KMP_ARCH_X86_64 1
# elif defined __i386
#  undef KMP_ARCH_X86
#  define KMP_ARCH_X86 1
# elif defined __powerpc64__
#  undef KMP_ARCH_PPC64
#  define KMP_ARCH_PPC64 1
# elif defined __aarch64__           
#  undef KMP_ARCH_AARCH64          
#  define KMP_ARCH_AARCH64 1  
# endif        
#endif

#if defined(__ARM_ARCH_7__)   || defined(__ARM_ARCH_7R__)  || \
    defined(__ARM_ARCH_7A__)
# define KMP_ARCH_ARMV7 1
#endif

#if defined(KMP_ARCH_ARMV7)   || defined(__ARM_ARCH_6__)   || \
    defined(__ARM_ARCH_6J__)  || defined(__ARM_ARCH_6K__)  || \
    defined(__ARM_ARCH_6Z__)  || defined(__ARM_ARCH_6T2__) || \
    defined(__ARM_ARCH_6ZK__)
# define KMP_ARCH_ARMV6 1
#endif

#if defined(KMP_ARCH_ARMV6)   || defined(__ARM_ARCH_5T__)  || \
    defined(__ARM_ARCH_5E__)  || defined(__ARM_ARCH_5TE__) || \
    defined(__ARM_ARCH_5TEJ__)
# define KMP_ARCH_ARMV5 1
#endif

#if defined(KMP_ARCH_ARMV5)   || defined(__ARM_ARCH_4__)   || \
    defined(__ARM_ARCH_4T__)
# define KMP_ARCH_ARMV4 1
#endif

#if defined(KMP_ARCH_ARMV4)   || defined(__ARM_ARCH_3__)   || \
    defined(__ARM_ARCH_3M__)
# define KMP_ARCH_ARMV3 1
#endif

#if defined(KMP_ARCH_ARMV3)   || defined(__ARM_ARCH_2__)
# define KMP_ARCH_ARMV2 1
#endif

#if defined(KMP_ARCH_ARMV2)
# define KMP_ARCH_ARM 1
#endif

// TODO: Fixme - This is clever, but really fugly 
#if (1 != KMP_ARCH_X86 + KMP_ARCH_X86_64 + KMP_ARCH_ARM + KMP_ARCH_PPC64 + KMP_ARCH_AARCH64)
# error Unknown or unsupported architecture
#endif

/* Check for quad-precision extension. */
#define KMP_HAVE_QUAD 0
#if KMP_ARCH_X86 || KMP_ARCH_X86_64
# if KMP_COMPILER_ICC
   /* _Quad is already defined for icc */
#  undef  KMP_HAVE_QUAD
#  define KMP_HAVE_QUAD 1
# elif KMP_COMPILER_CLANG
   /* Clang doesn't support a software-implemented
      128-bit extended precision type yet */
   typedef long double _Quad;
# elif KMP_COMPILER_GCC
   typedef __float128 _Quad;
#  undef  KMP_HAVE_QUAD
#  define KMP_HAVE_QUAD 1
# elif KMP_COMPILER_MSVC
   typedef long double _Quad;
# endif
#else
# if __LDBL_MAX_EXP__ >= 16384 && KMP_COMPILER_GCC
   typedef long double _Quad;
#  undef  KMP_HAVE_QUAD
#  define KMP_HAVE_QUAD 1
# endif
#endif /* KMP_ARCH_X86 || KMP_ARCH_X86_64 */

#if KMP_OS_WINDOWS
  typedef char              kmp_int8;
  typedef unsigned char     kmp_uint8;
  typedef short             kmp_int16;
  typedef unsigned short    kmp_uint16;
  typedef int               kmp_int32;
  typedef unsigned int      kmp_uint32;
# define KMP_INT32_SPEC     "d"
# define KMP_UINT32_SPEC    "u"
# ifndef KMP_STRUCT64
   typedef __int64 		kmp_int64;
   typedef unsigned __int64 	kmp_uint64;
   #define KMP_INT64_SPEC 	"I64d"
   #define KMP_UINT64_SPEC	"I64u"
# else
   struct kmp_struct64 {
    kmp_int32   a,b;
   };
   typedef struct kmp_struct64 kmp_int64;
   typedef struct kmp_struct64 kmp_uint64;
   /* Not sure what to use for KMP_[U]INT64_SPEC here */
# endif
# if KMP_ARCH_X86_64
#  define KMP_INTPTR 1
   typedef __int64         	kmp_intptr_t;
   typedef unsigned __int64	kmp_uintptr_t;
#  define KMP_INTPTR_SPEC  	"I64d"
#  define KMP_UINTPTR_SPEC 	"I64u"
# endif
#endif /* KMP_OS_WINDOWS */

#if KMP_OS_UNIX
  typedef char               kmp_int8;
  typedef unsigned char      kmp_uint8;
  typedef short              kmp_int16;
  typedef unsigned short     kmp_uint16;
  typedef int                kmp_int32;
  typedef unsigned int       kmp_uint32;
  typedef long long          kmp_int64;
  typedef unsigned long long kmp_uint64;
# define KMP_INT32_SPEC      "d"
# define KMP_UINT32_SPEC     "u"
# define KMP_INT64_SPEC	     "lld"
# define KMP_UINT64_SPEC     "llu"
#endif /* KMP_OS_UNIX */

#if KMP_ARCH_X86 || KMP_ARCH_ARM
# define KMP_SIZE_T_SPEC KMP_UINT32_SPEC
#elif KMP_ARCH_X86_64 || KMP_ARCH_PPC64 || KMP_ARCH_AARCH64
# define KMP_SIZE_T_SPEC KMP_UINT64_SPEC
#else
# error "Can't determine size_t printf format specifier."
#endif

#if KMP_ARCH_X86
# define KMP_SIZE_T_MAX (0xFFFFFFFF)
#else
# define KMP_SIZE_T_MAX (0xFFFFFFFFFFFFFFFF)
#endif

typedef size_t  kmp_size_t;
typedef float   kmp_real32;
typedef double  kmp_real64;

#ifndef KMP_INTPTR
# define KMP_INTPTR 1
  typedef long             kmp_intptr_t;
  typedef unsigned long    kmp_uintptr_t;
# define KMP_INTPTR_SPEC   "ld"
# define KMP_UINTPTR_SPEC  "lu"
#endif

#ifdef KMP_I8
  typedef kmp_int64      kmp_int;
  typedef kmp_uint64     kmp_uint;
# define  KMP_INT_SPEC	 KMP_INT64_SPEC
# define  KMP_UINT_SPEC	 KMP_UINT64_SPEC
# define  KMP_INT_MAX    ((kmp_int64)0x7FFFFFFFFFFFFFFFLL)
# define  KMP_INT_MIN    ((kmp_int64)0x8000000000000000LL)
#else
  typedef kmp_int32      kmp_int;
  typedef kmp_uint32     kmp_uint;
# define  KMP_INT_SPEC	 KMP_INT32_SPEC
# define  KMP_UINT_SPEC	 KMP_UINT32_SPEC
# define  KMP_INT_MAX    ((kmp_int32)0x7FFFFFFF)
# define  KMP_INT_MIN    ((kmp_int32)0x80000000)
#endif /* KMP_I8 */

#ifdef __cplusplus
    //-------------------------------------------------------------------------
    // template for debug prints specification ( d, u, lld, llu ), and to obtain
    // signed/unsigned flavors of a type
    template< typename T >
    struct traits_t {
        typedef T           signed_t;
        typedef T           unsigned_t;
        typedef T           floating_t;
        static char const * spec;
    };
    // int
    template<>
    struct traits_t< signed int > {
        typedef signed int    signed_t;
        typedef unsigned int  unsigned_t;
        typedef double        floating_t;
        static char const *   spec;
    };
    // unsigned int
    template<>
    struct traits_t< unsigned int > {
        typedef signed int    signed_t;
        typedef unsigned int  unsigned_t;
        typedef double        floating_t;
        static char const *   spec;
    };
    // long long
    template<>
    struct traits_t< signed long long > {
        typedef signed long long    signed_t;
        typedef unsigned long long  unsigned_t;
        typedef long double         floating_t;
        static char const *         spec;
    };
    // unsigned long long
    template<>
    struct traits_t< unsigned long long > {
        typedef signed long long    signed_t;
        typedef unsigned long long  unsigned_t;
        typedef long double         floating_t;
        static char const *         spec;
    };
    //-------------------------------------------------------------------------
#endif // __cplusplus

#define KMP_EXPORT	extern	/* export declaration in guide libraries */

#if __GNUC__ == 4
    #define __forceinline __inline
#endif

#define PAGE_SIZE                       (0x4000)
#define PAGE_ALIGNED(_addr)     ( ! ((size_t) _addr & \
                                     (size_t)(PAGE_SIZE - 1)))
#define ALIGN_TO_PAGE(x)   (void *)(((size_t)(x)) & ~((size_t)(PAGE_SIZE - 1)))

/* ---------------------- Support for cache alignment, padding, etc. -----------------*/

#ifdef __cplusplus
extern "C" {
#endif // __cplusplus

#define INTERNODE_CACHE_LINE 4096 /* for multi-node systems */

/* Define the default size of the cache line */
#ifndef CACHE_LINE
    #define CACHE_LINE                  128         /* cache line size in bytes */
#else
    #if ( CACHE_LINE < 64 ) && ! defined( KMP_OS_DARWIN )
        // 2006-02-13: This produces too many warnings on OS X*. Disable it for a while...
        #warning CACHE_LINE is too small.
    #endif
#endif /* CACHE_LINE */

#define KMP_CACHE_PREFETCH(ADDR) 	/* nothing */

/* Temporary note: if performance testing of this passes, we can remove
   all references to KMP_DO_ALIGN and replace with KMP_ALIGN.  */
#if KMP_OS_UNIX && defined(__GNUC__)
# define KMP_DO_ALIGN(bytes)  __attribute__((aligned(bytes)))
# define KMP_ALIGN_CACHE      __attribute__((aligned(CACHE_LINE)))
# define KMP_ALIGN_CACHE_INTERNODE __attribute__((aligned(INTERNODE_CACHE_LINE)))
# define KMP_ALIGN(bytes)     __attribute__((aligned(bytes)))
#else
# define KMP_DO_ALIGN(bytes)  __declspec( align(bytes) )
# define KMP_ALIGN_CACHE      __declspec( align(CACHE_LINE) )
# define KMP_ALIGN_CACHE_INTERNODE      __declspec( align(INTERNODE_CACHE_LINE) )
# define KMP_ALIGN(bytes)     __declspec( align(bytes) )
#endif

#if defined(__MIC__) || defined(__MIC2__)
    #define KMP_MIC  1
// Intel(R) Composer XE (13.0) defines both __MIC__ and __MIC2__ !
# if __MIC2__ || __KNC__
    #define KMP_MIC1 0
    #define KMP_MIC2 1
# else
    #define KMP_MIC1 1
    #define KMP_MIC2 0
# endif
#else
    #define KMP_MIC  0
    #define KMP_MIC1 0
    #define KMP_MIC2 0
#endif

/* General purpose fence types for memory operations */
enum kmp_mem_fence_type {
    kmp_no_fence,         /* No memory fence */
    kmp_acquire_fence,    /* Acquire (read) memory fence */
    kmp_release_fence,    /* Release (write) memory fence */
    kmp_full_fence        /* Full (read+write) memory fence */
};


//
// Synchronization primitives
//

#if KMP_ASM_INTRINS && KMP_OS_WINDOWS

#include <Windows.h>

#pragma intrinsic(InterlockedExchangeAdd)
#pragma intrinsic(InterlockedCompareExchange)
#pragma intrinsic(InterlockedExchange)
#pragma intrinsic(InterlockedExchange64)

//
// Using InterlockedIncrement / InterlockedDecrement causes a library loading
// ordering problem, so we use InterlockedExchangeAdd instead.
//
# define KMP_TEST_THEN_INC32(p)                 InterlockedExchangeAdd( (volatile long *)(p), 1 )
# define KMP_TEST_THEN_INC_ACQ32(p)             InterlockedExchangeAdd( (volatile long *)(p), 1 )
# define KMP_TEST_THEN_ADD4_32(p)               InterlockedExchangeAdd( (volatile long *)(p), 4 )
# define KMP_TEST_THEN_ADD4_ACQ32(p)            InterlockedExchangeAdd( (volatile long *)(p), 4 )
# define KMP_TEST_THEN_DEC32(p)                 InterlockedExchangeAdd( (volatile long *)(p), -1 )
# define KMP_TEST_THEN_DEC_ACQ32(p)             InterlockedExchangeAdd( (volatile long *)(p), -1 )
# define KMP_TEST_THEN_ADD32(p, v)              InterlockedExchangeAdd( (volatile long *)(p), (v) )

# define KMP_COMPARE_AND_STORE_RET32(p, cv, sv) InterlockedCompareExchange( (volatile long *)(p),(long)(sv),(long)(cv) )

# define KMP_XCHG_FIXED32(p, v)                 InterlockedExchange( (volatile long *)(p), (long)(v) )
# define KMP_XCHG_FIXED64(p, v)                 InterlockedExchange64( (volatile kmp_int64 *)(p), (kmp_int64)(v) )

inline kmp_real32 KMP_XCHG_REAL32( volatile kmp_real32 *p, kmp_real32 v)
{
    kmp_int32 tmp = InterlockedExchange( (volatile long *)p, *(long *)&v);
    return *(kmp_real32*)&tmp;
}

//
// Routines that we still need to implement in assembly.
//
extern kmp_int32 __kmp_test_then_add32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int32 __kmp_test_then_or32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int32 __kmp_test_then_and32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int64 __kmp_test_then_add64( volatile kmp_int64 *p, kmp_int64 v );
extern kmp_int64 __kmp_test_then_or64( volatile kmp_int64 *p, kmp_int64 v );
extern kmp_int64 __kmp_test_then_and64( volatile kmp_int64 *p, kmp_int64 v );

extern kmp_int8 __kmp_compare_and_store8( volatile kmp_int8 *p, kmp_int8 cv, kmp_int8 sv );
extern kmp_int16 __kmp_compare_and_store16( volatile kmp_int16 *p, kmp_int16 cv, kmp_int16 sv );
extern kmp_int32 __kmp_compare_and_store32( volatile kmp_int32 *p, kmp_int32 cv, kmp_int32 sv );
extern kmp_int32 __kmp_compare_and_store64( volatile kmp_int64 *p, kmp_int64 cv, kmp_int64 sv );
extern kmp_int8  __kmp_compare_and_store_ret8(  volatile kmp_int8  *p, kmp_int8  cv, kmp_int8  sv );
extern kmp_int16 __kmp_compare_and_store_ret16( volatile kmp_int16 *p, kmp_int16 cv, kmp_int16 sv );
extern kmp_int32 __kmp_compare_and_store_ret32( volatile kmp_int32 *p, kmp_int32 cv, kmp_int32 sv );
extern kmp_int64 __kmp_compare_and_store_ret64( volatile kmp_int64 *p, kmp_int64 cv, kmp_int64 sv );

extern kmp_int8  __kmp_xchg_fixed8( volatile kmp_int8  *p, kmp_int8  v );
extern kmp_int16 __kmp_xchg_fixed16( volatile kmp_int16 *p, kmp_int16 v );
extern kmp_int32 __kmp_xchg_fixed32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int64 __kmp_xchg_fixed64( volatile kmp_int64 *p, kmp_int64 v );
extern kmp_real32 __kmp_xchg_real32( volatile kmp_real32 *p, kmp_real32 v );
extern kmp_real64 __kmp_xchg_real64( volatile kmp_real64 *p, kmp_real64 v );

//# define KMP_TEST_THEN_INC32(p)                 __kmp_test_then_add32( (p), 1 )
//# define KMP_TEST_THEN_INC_ACQ32(p)             __kmp_test_then_add32( (p), 1 )
# define KMP_TEST_THEN_INC64(p)                 __kmp_test_then_add64( (p), 1LL )
# define KMP_TEST_THEN_INC_ACQ64(p)             __kmp_test_then_add64( (p), 1LL )
//# define KMP_TEST_THEN_ADD4_32(p)               __kmp_test_then_add32( (p), 4 )
//# define KMP_TEST_THEN_ADD4_ACQ32(p)            __kmp_test_then_add32( (p), 4 )
# define KMP_TEST_THEN_ADD4_64(p)               __kmp_test_then_add64( (p), 4LL )
# define KMP_TEST_THEN_ADD4_ACQ64(p)            __kmp_test_then_add64( (p), 4LL )
//# define KMP_TEST_THEN_DEC32(p)                 __kmp_test_then_add32( (p), -1 )
//# define KMP_TEST_THEN_DEC_ACQ32(p)             __kmp_test_then_add32( (p), -1 )
# define KMP_TEST_THEN_DEC64(p)                 __kmp_test_then_add64( (p), -1LL )
# define KMP_TEST_THEN_DEC_ACQ64(p)             __kmp_test_then_add64( (p), -1LL )
//# define KMP_TEST_THEN_ADD32(p, v)              __kmp_test_then_add32( (p), (v) )
# define KMP_TEST_THEN_ADD64(p, v)              __kmp_test_then_add64( (p), (v) )

# define KMP_TEST_THEN_OR32(p, v)               __kmp_test_then_or32( (p), (v) )
# define KMP_TEST_THEN_AND32(p, v)              __kmp_test_then_and32( (p), (v) )
# define KMP_TEST_THEN_OR64(p, v)               __kmp_test_then_or64( (p), (v) )
# define KMP_TEST_THEN_AND64(p, v)              __kmp_test_then_and64( (p), (v) )

# define KMP_COMPARE_AND_STORE_ACQ8(p, cv, sv)  __kmp_compare_and_store8( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL8(p, cv, sv)  __kmp_compare_and_store8( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_ACQ16(p, cv, sv) __kmp_compare_and_store16( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL16(p, cv, sv) __kmp_compare_and_store16( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_ACQ32(p, cv, sv) __kmp_compare_and_store32( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL32(p, cv, sv) __kmp_compare_and_store32( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_ACQ64(p, cv, sv) __kmp_compare_and_store64( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL64(p, cv, sv) __kmp_compare_and_store64( (p), (cv), (sv) )

# if KMP_ARCH_X86
#  define KMP_COMPARE_AND_STORE_PTR(p, cv, sv)  __kmp_compare_and_store32( (volatile kmp_int32*)(p), (kmp_int32)(cv), (kmp_int32)(sv) )
# else /* 64 bit pointers */
#  define KMP_COMPARE_AND_STORE_PTR(p, cv, sv)  __kmp_compare_and_store64( (volatile kmp_int64*)(p), (kmp_int64)(cv), (kmp_int64)(sv) )
# endif /* KMP_ARCH_X86 */

# define KMP_COMPARE_AND_STORE_RET8(p, cv, sv)  __kmp_compare_and_store_ret8( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_RET16(p, cv, sv) __kmp_compare_and_store_ret16( (p), (cv), (sv) )
//# define KMP_COMPARE_AND_STORE_RET32(p, cv, sv) __kmp_compare_and_store_ret32( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_RET64(p, cv, sv) __kmp_compare_and_store_ret64( (p), (cv), (sv) )

# define KMP_XCHG_FIXED8(p, v)                  __kmp_xchg_fixed8( (p), (v) );
# define KMP_XCHG_FIXED16(p, v)                 __kmp_xchg_fixed16( (p), (v) );
//# define KMP_XCHG_FIXED32(p, v)                 __kmp_xchg_fixed32( (p), (v) );
//# define KMP_XCHG_FIXED64(p, v)                 __kmp_xchg_fixed64( (p), (v) );
//# define KMP_XCHG_REAL32(p, v)                  __kmp_xchg_real32( (p), (v) );
# define KMP_XCHG_REAL64(p, v)                  __kmp_xchg_real64( (p), (v) );


#elif (KMP_ASM_INTRINS && KMP_OS_UNIX) || !(KMP_ARCH_X86 || KMP_ARCH_X86_64)

/* cast p to correct type so that proper intrinsic will be used */
# define KMP_TEST_THEN_INC32(p)                 __sync_fetch_and_add( (kmp_int32 *)(p), 1 )
# define KMP_TEST_THEN_INC_ACQ32(p)             __sync_fetch_and_add( (kmp_int32 *)(p), 1 )
# define KMP_TEST_THEN_INC64(p)                 __sync_fetch_and_add( (kmp_int64 *)(p), 1LL )
# define KMP_TEST_THEN_INC_ACQ64(p)             __sync_fetch_and_add( (kmp_int64 *)(p), 1LL )
# define KMP_TEST_THEN_ADD4_32(p)               __sync_fetch_and_add( (kmp_int32 *)(p), 4 )
# define KMP_TEST_THEN_ADD4_ACQ32(p)            __sync_fetch_and_add( (kmp_int32 *)(p), 4 )
# define KMP_TEST_THEN_ADD4_64(p)               __sync_fetch_and_add( (kmp_int64 *)(p), 4LL )
# define KMP_TEST_THEN_ADD4_ACQ64(p)            __sync_fetch_and_add( (kmp_int64 *)(p), 4LL )
# define KMP_TEST_THEN_DEC32(p)                 __sync_fetch_and_sub( (kmp_int32 *)(p), 1 )
# define KMP_TEST_THEN_DEC_ACQ32(p)             __sync_fetch_and_sub( (kmp_int32 *)(p), 1 )
# define KMP_TEST_THEN_DEC64(p)                 __sync_fetch_and_sub( (kmp_int64 *)(p), 1LL )
# define KMP_TEST_THEN_DEC_ACQ64(p)             __sync_fetch_and_sub( (kmp_int64 *)(p), 1LL )
# define KMP_TEST_THEN_ADD32(p, v)              __sync_fetch_and_add( (kmp_int32 *)(p), (v) )
# define KMP_TEST_THEN_ADD64(p, v)              __sync_fetch_and_add( (kmp_int64 *)(p), (v) )

# define KMP_TEST_THEN_OR32(p, v)               __sync_fetch_and_or( (kmp_int32 *)(p), (v) )
# define KMP_TEST_THEN_AND32(p, v)              __sync_fetch_and_and( (kmp_int32 *)(p), (v) )
# define KMP_TEST_THEN_OR64(p, v)               __sync_fetch_and_or( (kmp_int64 *)(p), (v) )
# define KMP_TEST_THEN_AND64(p, v)              __sync_fetch_and_and( (kmp_int64 *)(p), (v) )

# define KMP_COMPARE_AND_STORE_ACQ8(p, cv, sv)  __sync_bool_compare_and_swap( (volatile kmp_uint8 *)(p),(kmp_uint8)(cv),(kmp_uint8)(sv) )
# define KMP_COMPARE_AND_STORE_REL8(p, cv, sv)  __sync_bool_compare_and_swap( (volatile kmp_uint8 *)(p),(kmp_uint8)(cv),(kmp_uint8)(sv) )
# define KMP_COMPARE_AND_STORE_ACQ16(p, cv, sv) __sync_bool_compare_and_swap( (volatile kmp_uint16 *)(p),(kmp_uint16)(cv),(kmp_uint16)(sv) )
# define KMP_COMPARE_AND_STORE_REL16(p, cv, sv) __sync_bool_compare_and_swap( (volatile kmp_uint16 *)(p),(kmp_uint16)(cv),(kmp_uint16)(sv) )
# define KMP_COMPARE_AND_STORE_ACQ32(p, cv, sv) __sync_bool_compare_and_swap( (volatile kmp_uint32 *)(p),(kmp_uint32)(cv),(kmp_uint32)(sv) )
# define KMP_COMPARE_AND_STORE_REL32(p, cv, sv) __sync_bool_compare_and_swap( (volatile kmp_uint32 *)(p),(kmp_uint32)(cv),(kmp_uint32)(sv) )
# define KMP_COMPARE_AND_STORE_ACQ64(p, cv, sv) __sync_bool_compare_and_swap( (volatile kmp_uint64 *)(p),(kmp_uint64)(cv),(kmp_uint64)(sv) )
# define KMP_COMPARE_AND_STORE_REL64(p, cv, sv) __sync_bool_compare_and_swap( (volatile kmp_uint64 *)(p),(kmp_uint64)(cv),(kmp_uint64)(sv) )
# define KMP_COMPARE_AND_STORE_PTR(p, cv, sv)   __sync_bool_compare_and_swap( (volatile void **)(p),(void *)(cv),(void *)(sv) )

# define KMP_COMPARE_AND_STORE_RET8(p, cv, sv)  __sync_val_compare_and_swap( (volatile kmp_uint8 *)(p),(kmp_uint8)(cv),(kmp_uint8)(sv) )
# define KMP_COMPARE_AND_STORE_RET16(p, cv, sv) __sync_val_compare_and_swap( (volatile kmp_uint16 *)(p),(kmp_uint16)(cv),(kmp_uint16)(sv) )
# define KMP_COMPARE_AND_STORE_RET32(p, cv, sv) __sync_val_compare_and_swap( (volatile kmp_uint32 *)(p),(kmp_uint32)(cv),(kmp_uint32)(sv) )
# define KMP_COMPARE_AND_STORE_RET64(p, cv, sv) __sync_val_compare_and_swap( (volatile kmp_uint64 *)(p),(kmp_uint64)(cv),(kmp_uint64)(sv) )

#define KMP_XCHG_FIXED8(p, v)                   __sync_lock_test_and_set( (volatile kmp_uint8 *)(p), (kmp_uint8)(v) )
#define KMP_XCHG_FIXED16(p, v)                  __sync_lock_test_and_set( (volatile kmp_uint16 *)(p), (kmp_uint16)(v) )
#define KMP_XCHG_FIXED32(p, v)                  __sync_lock_test_and_set( (volatile kmp_uint32 *)(p), (kmp_uint32)(v) )
#define KMP_XCHG_FIXED64(p, v)                  __sync_lock_test_and_set( (volatile kmp_uint64 *)(p), (kmp_uint64)(v) )

inline kmp_real32 KMP_XCHG_REAL32( volatile kmp_real32 *p, kmp_real32 v)
{
    kmp_int32 tmp = __sync_lock_test_and_set( (kmp_int32*)p, *(kmp_int32*)&v);
    return *(kmp_real32*)&tmp;
}

inline kmp_real64 KMP_XCHG_REAL64( volatile kmp_real64 *p, kmp_real64 v)
{
    kmp_int64 tmp = __sync_lock_test_and_set( (kmp_int64*)p, *(kmp_int64*)&v);
    return *(kmp_real64*)&tmp;
}

#else

extern kmp_int32 __kmp_test_then_add32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int32 __kmp_test_then_or32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int32 __kmp_test_then_and32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int64 __kmp_test_then_add64( volatile kmp_int64 *p, kmp_int64 v );
extern kmp_int64 __kmp_test_then_or64( volatile kmp_int64 *p, kmp_int64 v );
extern kmp_int64 __kmp_test_then_and64( volatile kmp_int64 *p, kmp_int64 v );

extern kmp_int8 __kmp_compare_and_store8( volatile kmp_int8 *p, kmp_int8 cv, kmp_int8 sv );
extern kmp_int16 __kmp_compare_and_store16( volatile kmp_int16 *p, kmp_int16 cv, kmp_int16 sv );
extern kmp_int32 __kmp_compare_and_store32( volatile kmp_int32 *p, kmp_int32 cv, kmp_int32 sv );
extern kmp_int32 __kmp_compare_and_store64( volatile kmp_int64 *p, kmp_int64 cv, kmp_int64 sv );
extern kmp_int8  __kmp_compare_and_store_ret8(  volatile kmp_int8  *p, kmp_int8  cv, kmp_int8  sv );
extern kmp_int16 __kmp_compare_and_store_ret16( volatile kmp_int16 *p, kmp_int16 cv, kmp_int16 sv );
extern kmp_int32 __kmp_compare_and_store_ret32( volatile kmp_int32 *p, kmp_int32 cv, kmp_int32 sv );
extern kmp_int64 __kmp_compare_and_store_ret64( volatile kmp_int64 *p, kmp_int64 cv, kmp_int64 sv );

extern kmp_int8  __kmp_xchg_fixed8( volatile kmp_int8  *p, kmp_int8  v );
extern kmp_int16 __kmp_xchg_fixed16( volatile kmp_int16 *p, kmp_int16 v );
extern kmp_int32 __kmp_xchg_fixed32( volatile kmp_int32 *p, kmp_int32 v );
extern kmp_int64 __kmp_xchg_fixed64( volatile kmp_int64 *p, kmp_int64 v );
extern kmp_real32 __kmp_xchg_real32( volatile kmp_real32 *p, kmp_real32 v );
extern kmp_real64 __kmp_xchg_real64( volatile kmp_real64 *p, kmp_real64 v );

# define KMP_TEST_THEN_INC32(p)                 __kmp_test_then_add32( (p), 1 )
# define KMP_TEST_THEN_INC_ACQ32(p)             __kmp_test_then_add32( (p), 1 )
# define KMP_TEST_THEN_INC64(p)                 __kmp_test_then_add64( (p), 1LL )
# define KMP_TEST_THEN_INC_ACQ64(p)             __kmp_test_then_add64( (p), 1LL )
# define KMP_TEST_THEN_ADD4_32(p)               __kmp_test_then_add32( (p), 4 )
# define KMP_TEST_THEN_ADD4_ACQ32(p)            __kmp_test_then_add32( (p), 4 )
# define KMP_TEST_THEN_ADD4_64(p)               __kmp_test_then_add64( (p), 4LL )
# define KMP_TEST_THEN_ADD4_ACQ64(p)            __kmp_test_then_add64( (p), 4LL )
# define KMP_TEST_THEN_DEC32(p)                 __kmp_test_then_add32( (p), -1 )
# define KMP_TEST_THEN_DEC_ACQ32(p)             __kmp_test_then_add32( (p), -1 )
# define KMP_TEST_THEN_DEC64(p)                 __kmp_test_then_add64( (p), -1LL )
# define KMP_TEST_THEN_DEC_ACQ64(p)             __kmp_test_then_add64( (p), -1LL )
# define KMP_TEST_THEN_ADD32(p, v)              __kmp_test_then_add32( (p), (v) )
# define KMP_TEST_THEN_ADD64(p, v)              __kmp_test_then_add64( (p), (v) )

# define KMP_TEST_THEN_OR32(p, v)               __kmp_test_then_or32( (p), (v) )
# define KMP_TEST_THEN_AND32(p, v)              __kmp_test_then_and32( (p), (v) )
# define KMP_TEST_THEN_OR64(p, v)               __kmp_test_then_or64( (p), (v) )
# define KMP_TEST_THEN_AND64(p, v)              __kmp_test_then_and64( (p), (v) )

# define KMP_COMPARE_AND_STORE_ACQ8(p, cv, sv)  __kmp_compare_and_store8( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL8(p, cv, sv)  __kmp_compare_and_store8( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_ACQ16(p, cv, sv) __kmp_compare_and_store16( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL16(p, cv, sv) __kmp_compare_and_store16( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_ACQ32(p, cv, sv) __kmp_compare_and_store32( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL32(p, cv, sv) __kmp_compare_and_store32( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_ACQ64(p, cv, sv) __kmp_compare_and_store64( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_REL64(p, cv, sv) __kmp_compare_and_store64( (p), (cv), (sv) )

# if KMP_ARCH_X86
#  define KMP_COMPARE_AND_STORE_PTR(p, cv, sv)  __kmp_compare_and_store32( (volatile kmp_int32*)(p), (kmp_int32)(cv), (kmp_int32)(sv) )
# else /* 64 bit pointers */
#  define KMP_COMPARE_AND_STORE_PTR(p, cv, sv)  __kmp_compare_and_store64( (volatile kmp_int64*)(p), (kmp_int64)(cv), (kmp_int64)(sv) )
# endif /* KMP_ARCH_X86 */

# define KMP_COMPARE_AND_STORE_RET8(p, cv, sv)  __kmp_compare_and_store_ret8( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_RET16(p, cv, sv) __kmp_compare_and_store_ret16( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_RET32(p, cv, sv) __kmp_compare_and_store_ret32( (p), (cv), (sv) )
# define KMP_COMPARE_AND_STORE_RET64(p, cv, sv) __kmp_compare_and_store_ret64( (p), (cv), (sv) )

# define KMP_XCHG_FIXED8(p, v)                  __kmp_xchg_fixed8( (p), (v) );
# define KMP_XCHG_FIXED16(p, v)                 __kmp_xchg_fixed16( (p), (v) );
# define KMP_XCHG_FIXED32(p, v)                 __kmp_xchg_fixed32( (p), (v) );
# define KMP_XCHG_FIXED64(p, v)                 __kmp_xchg_fixed64( (p), (v) );
# define KMP_XCHG_REAL32(p, v)                  __kmp_xchg_real32( (p), (v) );
# define KMP_XCHG_REAL64(p, v)                  __kmp_xchg_real64( (p), (v) );

#endif /* KMP_ASM_INTRINS */


/* ------------- relaxed consistency memory model stuff ------------------ */

#if KMP_OS_WINDOWS
# ifdef __ABSOFT_WIN
#   define KMP_MB()     asm ("nop")
#   define KMP_IMB()    asm ("nop")
# else
#   define KMP_MB()     /* _asm{ nop } */
#   define KMP_IMB()    /* _asm{ nop } */
# endif
#endif /* KMP_OS_WINDOWS */

#if KMP_ARCH_PPC64
# define KMP_MB()       __sync_synchronize()
#endif

#ifndef KMP_MB
# define KMP_MB()       /* nothing to do */
#endif

#ifndef KMP_IMB
# define KMP_IMB()      /* nothing to do */
#endif

#ifndef KMP_ST_REL32
# define KMP_ST_REL32(A,D)      ( *(A) = (D) )
#endif

#ifndef KMP_ST_REL64
# define KMP_ST_REL64(A,D)      ( *(A) = (D) )
#endif

#ifndef KMP_LD_ACQ32
# define KMP_LD_ACQ32(A)        ( *(A) )
#endif

#ifndef KMP_LD_ACQ64
# define KMP_LD_ACQ64(A)        ( *(A) )
#endif

/* ------------------------------------------------------------------------ */
//
// FIXME - maybe this should this be
//
// #define TCR_4(a)    (*(volatile kmp_int32 *)(&a))
// #define TCW_4(a,b)  (a) = (*(volatile kmp_int32 *)&(b))
//
// #define TCR_8(a)    (*(volatile kmp_int64 *)(a))
// #define TCW_8(a,b)  (a) = (*(volatile kmp_int64 *)(&b))
//
// I'm fairly certain this is the correct thing to do, but I'm afraid
// of performance regressions.
//

#define TCR_4(a)            (a)
#define TCW_4(a,b)          (a) = (b)
#define TCR_8(a)            (a)
#define TCW_8(a,b)          (a) = (b)
#define TCR_SYNC_4(a)       (a)
#define TCW_SYNC_4(a,b)     (a) = (b)
#define TCX_SYNC_4(a,b,c)   KMP_COMPARE_AND_STORE_REL32((volatile kmp_int32 *)(volatile void *)&(a), (kmp_int32)(b), (kmp_int32)(c))
#define TCR_SYNC_8(a)       (a)
#define TCW_SYNC_8(a,b)     (a) = (b)
#define TCX_SYNC_8(a,b,c)   KMP_COMPARE_AND_STORE_REL64((volatile kmp_int64 *)(volatile void *)&(a), (kmp_int64)(b), (kmp_int64)(c))

#if KMP_ARCH_X86
// What about ARM?
    #define TCR_PTR(a)          ((void *)TCR_4(a))
    #define TCW_PTR(a,b)        TCW_4((a),(b))
    #define TCR_SYNC_PTR(a)     ((void *)TCR_SYNC_4(a))
    #define TCW_SYNC_PTR(a,b)   TCW_SYNC_4((a),(b))
    #define TCX_SYNC_PTR(a,b,c) ((void *)TCX_SYNC_4((a),(b),(c)))

#else /* 64 bit pointers */

    #define TCR_PTR(a)          ((void *)TCR_8(a))
    #define TCW_PTR(a,b)        TCW_8((a),(b))
    #define TCR_SYNC_PTR(a)     ((void *)TCR_SYNC_8(a))
    #define TCW_SYNC_PTR(a,b)   TCW_SYNC_8((a),(b))
    #define TCX_SYNC_PTR(a,b,c) ((void *)TCX_SYNC_8((a),(b),(c)))

#endif /* KMP_ARCH_X86 */

/*
 * If these FTN_{TRUE,FALSE} values change, may need to
 * change several places where they are used to check that
 * language is Fortran, not C.
 */

#ifndef FTN_TRUE
# define FTN_TRUE       TRUE
#endif

#ifndef FTN_FALSE
# define FTN_FALSE      FALSE
#endif

typedef void    (*microtask_t)( int *gtid, int *npr, ... );

#ifdef USE_VOLATILE_CAST
# define VOLATILE_CAST(x)        (volatile x)
#else
# define VOLATILE_CAST(x)        (x)
#endif

#ifdef KMP_I8
# define KMP_WAIT_YIELD           __kmp_wait_yield_8
# define KMP_EQ                   __kmp_eq_8
# define KMP_NEQ                  __kmp_neq_8
# define KMP_LT                   __kmp_lt_8
# define KMP_GE                   __kmp_ge_8
# define KMP_LE                   __kmp_le_8
#else
# define KMP_WAIT_YIELD           __kmp_wait_yield_4
# define KMP_EQ                   __kmp_eq_4
# define KMP_NEQ                  __kmp_neq_4
# define KMP_LT                   __kmp_lt_4
# define KMP_GE                   __kmp_ge_4
# define KMP_LE                   __kmp_le_4
#endif /* KMP_I8 */

/* Workaround for Intel(R) 64 code gen bug when taking address of static array (Intel(R) 64 Tracker #138) */
#if (KMP_ARCH_X86_64 || KMP_ARCH_PPC64) && KMP_OS_LINUX
# define STATIC_EFI2_WORKAROUND
#else
# define STATIC_EFI2_WORKAROUND static
#endif

// Support of BGET usage
#ifndef KMP_USE_BGET
#define KMP_USE_BGET 1
#endif


// Switches for OSS builds
#ifndef USE_SYSFS_INFO
# define USE_SYSFS_INFO  0
#endif
#ifndef USE_CMPXCHG_FIX
# define USE_CMPXCHG_FIX 1
#endif

// Warning levels
enum kmp_warnings_level {
    kmp_warnings_off = 0,		/* No warnings */
    kmp_warnings_low,			/* Minimal warnings (default) */
    kmp_warnings_explicit = 6,		/* Explicitly set to ON - more warnings */
    kmp_warnings_verbose		/* reserved */
};

#ifdef __cplusplus
} // extern "C"
#endif // __cplusplus

#endif /* KMP_OS_H */