1  #ifdef __MINGW32__
       2    /* Make sure we are using gnu-style bitfield handling.  */
       3  #define _FP_STRUCT_LAYOUT  __attribute__ ((gcc_struct))
       4  #endif
       5  
       6  /* The type of the result of a floating point comparison.  This must
       7     match `__libgcc_cmp_return__' in GCC for the target.  */
       8  typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
       9  #define CMPtype __gcc_CMPtype
      10  
      11  #ifdef __x86_64__
      12  #include "config/i386/64/sfp-machine.h"
      13  #else
      14  #include "config/i386/32/sfp-machine.h"
      15  #endif
      16  
      17  #define _FP_KEEPNANFRACP	1
      18  #define _FP_QNANNEGATEDP 0
      19  
      20  #define _FP_NANSIGN_H		1
      21  #define _FP_NANSIGN_B		1
      22  #define _FP_NANSIGN_S		1
      23  #define _FP_NANSIGN_D		1
      24  #define _FP_NANSIGN_E		1
      25  #define _FP_NANSIGN_Q		1
      26  
      27  /* Here is something Intel misdesigned: the specs don't define
      28     the case where we have two NaNs with same mantissas, but
      29     different sign. Different operations pick up different NaNs.  */
      30  #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
      31    do {								\
      32      if (_FP_FRAC_GT_##wc(X, Y)					\
      33  	|| (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*')))	\
      34        {								\
      35  	R##_s = X##_s;						\
      36  	_FP_FRAC_COPY_##wc(R,X);				\
      37        }								\
      38      else							\
      39        {								\
      40  	R##_s = Y##_s;						\
      41  	_FP_FRAC_COPY_##wc(R,Y);				\
      42        }								\
      43      R##_c = FP_CLS_NAN;						\
      44    } while (0)
      45  
      46  #ifndef _SOFT_FLOAT
      47  #define FP_EX_INVALID		0x01
      48  #define FP_EX_DENORM		0x02
      49  #define FP_EX_DIVZERO		0x04
      50  #define FP_EX_OVERFLOW		0x08
      51  #define FP_EX_UNDERFLOW		0x10
      52  #define FP_EX_INEXACT		0x20
      53  #define FP_EX_ALL \
      54  	(FP_EX_INVALID | FP_EX_DENORM | FP_EX_DIVZERO | FP_EX_OVERFLOW \
      55  	 | FP_EX_UNDERFLOW | FP_EX_INEXACT)
      56  
      57  void __sfp_handle_exceptions (int);
      58  
      59  #define FP_HANDLE_EXCEPTIONS			\
      60    do {						\
      61      if (__builtin_expect (_fex, 0))		\
      62        __sfp_handle_exceptions (_fex);		\
      63    } while (0)
      64  
      65  #define FP_TRAPPING_EXCEPTIONS ((~_fcw >> FP_EX_SHIFT) & FP_EX_ALL)
      66  
      67  #define FP_ROUNDMODE		(_fcw & FP_RND_MASK)
      68  #endif
      69  
      70  #define _FP_TININESS_AFTER_ROUNDING 1
      71  
      72  #define	__LITTLE_ENDIAN	1234
      73  #define	__BIG_ENDIAN	4321
      74  
      75  #define __BYTE_ORDER __LITTLE_ENDIAN
      76  
      77  /* Define ALIASNAME as a strong alias for NAME.  */
      78  #if defined __APPLE__
      79  /* Mach-O doesn't support aliasing, so we build a secondary function for
      80     the alias - we need to do a bit of a dance to find out what the type of
      81     the arguments is and then apply that to the secondary function.
      82     If these functions ever return anything but CMPtype we need to revisit
      83     this... */
      84  typedef float alias_HFtype __attribute__ ((mode (HF)));
      85  typedef float alias_SFtype __attribute__ ((mode (SF)));
      86  typedef float alias_DFtype __attribute__ ((mode (DF)));
      87  typedef float alias_TFtype __attribute__ ((mode (TF)));
      88  #define ALIAS_SELECTOR \
      89    CMPtype (*) (alias_HFtype, alias_HFtype): (alias_HFtype) 0, \
      90    CMPtype (*) (alias_SFtype, alias_SFtype): (alias_SFtype) 0, \
      91    CMPtype (*) (alias_DFtype, alias_DFtype): (alias_DFtype) 0, \
      92    CMPtype (*) (alias_TFtype, alias_TFtype): (alias_TFtype) 0
      93  #define strong_alias(name, aliasname) \
      94    CMPtype aliasname (__typeof (_Generic (name, ALIAS_SELECTOR)) a, \
      95  		     __typeof (_Generic (name, ALIAS_SELECTOR)) b) \
      96  		    { return name (a, b); }
      97  #else
      98  # define strong_alias(name, aliasname) _strong_alias(name, aliasname)
      99  # define _strong_alias(name, aliasname) \
     100    extern __typeof (name) aliasname __attribute__ ((alias (#name)));
     101  #endif