libgcc/config/ia64/sfp-machine.h

   1 #define _FP_W_TYPE_SIZE         64
   2 #define _FP_W_TYPE              unsigned long
   3 #define _FP_WS_TYPE             signed long
   4 #define _FP_I_TYPE              long
   5
   6 typedef int TItype __attribute__ ((mode (TI)));
   7 typedef unsigned int UTItype __attribute__ ((mode (TI)));
   8
   9 #define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype))
  10
  11 /* The type of the result of a floating point comparison.  This must
  12    match `__libgcc_cmp_return__' in GCC for the target.  */
  13 typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
  14 #define CMPtype __gcc_CMPtype
  15
  16 #define _FP_MUL_MEAT_Q(R,X,Y)                           \
  17   _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
  18
  19 #define _FP_DIV_MEAT_Q(R,X,Y)   _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
  20
  21 #define _FP_NANFRAC_S           _FP_QNANBIT_S
  22 #define _FP_NANFRAC_D           _FP_QNANBIT_D
  23 #define _FP_NANFRAC_E           _FP_QNANBIT_E, 0
  24 #define _FP_NANFRAC_Q           _FP_QNANBIT_Q, 0
  25
  26 #define _FP_KEEPNANFRACP        1
  27 #define _FP_QNANNEGATEDP 0
  28
  29 #define _FP_NANSIGN_S           1
  30 #define _FP_NANSIGN_D           1
  31 #define _FP_NANSIGN_E           1
  32 #define _FP_NANSIGN_Q           1
  33
  34 /* Here is something Intel misdesigned: the specs don't define
  35    the case where we have two NaNs with same mantissas, but
  36    different sign. Different operations pick up different NaNs.  */
  37 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
  38   do {                                                          \
  39     if (_FP_FRAC_GT_##wc(X, Y)                                  \
  40         || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
  41       {                                                         \
  42         R##_s = X##_s;                                          \
  43         _FP_FRAC_COPY_##wc(R,X);                                \
  44       }                                                         \
  45     else                                                        \
  46       {                                                         \
  47         R##_s = Y##_s;                                          \
  48         _FP_FRAC_COPY_##wc(R,Y);                                \
  49       }                                                         \
  50     R##_c = FP_CLS_NAN;                                         \
  51   } while (0)
  52
  53 #define FP_EX_INVALID           0x01
  54 #define FP_EX_DENORM            0x02
  55 #define FP_EX_DIVZERO           0x04
  56 #define FP_EX_OVERFLOW          0x08
  57 #define FP_EX_UNDERFLOW         0x10
  58 #define FP_EX_INEXACT           0x20
  59 #define FP_EX_ALL \
  60         (FP_EX_INVALID | FP_EX_DENORM | FP_EX_DIVZERO | FP_EX_OVERFLOW \
  61          | FP_EX_UNDERFLOW | FP_EX_INEXACT)
  62
  63 #define _FP_TININESS_AFTER_ROUNDING 1
  64
  65 void __sfp_handle_exceptions (int);
  66
  67 #define FP_HANDLE_EXCEPTIONS                    \
  68   do {                                          \
  69     if (__builtin_expect (_fex, 0))             \
  70       __sfp_handle_exceptions (_fex);           \
  71   } while (0)
  72
  73 #define FP_TRAPPING_EXCEPTIONS  (~_fcw & FP_EX_ALL)
  74
  75 #define FP_RND_NEAREST          0
  76 #define FP_RND_ZERO             0xc00L
  77 #define FP_RND_PINF             0x800L
  78 #define FP_RND_MINF             0x400L
  79
  80 #define FP_RND_MASK             0xc00L
  81
  82 #define _FP_DECL_EX \
  83   unsigned long int _fcw __attribute__ ((unused)) = FP_RND_NEAREST
  84
  85 #define FP_INIT_ROUNDMODE                                       \
  86   do {                                                          \
  87     __asm__ __volatile__ ("mov.m %0 = ar.fpsr" : "=r" (_fcw));  \
  88   } while (0)
  89
  90 #define FP_ROUNDMODE            (_fcw & FP_RND_MASK)
  91
  92 #define __LITTLE_ENDIAN 1234
  93 #define __BIG_ENDIAN    4321
  94
  95 #define __BYTE_ORDER __LITTLE_ENDIAN
  96
  97 /* Define ALIASNAME as a strong alias for NAME.  */
  98 #define strong_alias(name, aliasname) _strong_alias(name, aliasname)
  99 #define _strong_alias(name, aliasname) \
 100   extern __typeof (name) aliasname __attribute__ ((alias (#name)));