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
  28 #define _FP_NANSIGN_S           1
  29 #define _FP_NANSIGN_D           1
  30 #define _FP_NANSIGN_E           1
  31 #define _FP_NANSIGN_Q           1
  32
  33 /* Here is something Intel misdesigned: the specs don't define
  34    the case where we have two NaNs with same mantissas, but
  35    different sign. Different operations pick up different NaNs.  */
  36 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
  37   do {                                                          \
  38     if (_FP_FRAC_GT_##wc(X, Y)                                  \
  39         || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
  40       {                                                         \
  41         R##_s = X##_s;                                          \
  42         _FP_FRAC_COPY_##wc(R,X);                                \
  43       }                                                         \
  44     else                                                        \
  45       {                                                         \
  46         R##_s = Y##_s;                                          \
  47         _FP_FRAC_COPY_##wc(R,Y);                                \
  48       }                                                         \
  49     R##_c = FP_CLS_NAN;                                         \
  50   } while (0)
  51
  52 #define FP_EX_INVALID           0x01
  53 #define FP_EX_DENORM            0x02
  54 #define FP_EX_DIVZERO           0x04
  55 #define FP_EX_OVERFLOW          0x08
  56 #define FP_EX_UNDERFLOW         0x10
  57 #define FP_EX_INEXACT           0x20
  58
  59 void __sfp_handle_exceptions (int);
  60
  61 #define FP_HANDLE_EXCEPTIONS                    \
  62   do {                                          \
  63     if (__builtin_expect (_fex, 0))             \
  64       __sfp_handle_exceptions (_fex);           \
  65   } while (0);
  66
  67 #define FP_RND_NEAREST          0
  68 #define FP_RND_ZERO             0xc00L
  69 #define FP_RND_PINF             0x800L
  70 #define FP_RND_MINF             0x400L
  71
  72 #define FP_RND_MASK             0xc00L
  73
  74 #define _FP_DECL_EX \
  75   unsigned long int _fcw __attribute__ ((unused)) = FP_RND_NEAREST
  76
  77 #define FP_INIT_ROUNDMODE                                       \
  78   do {                                                          \
  79     __asm__ __volatile__ ("mov.m %0 = ar.fpsr" : "=r" (_fcw));  \
  80   } while (0)
  81
  82 #define FP_ROUNDMODE            (_fcw & FP_RND_MASK)
  83
  84 #define __LITTLE_ENDIAN 1234
  85 #define __BIG_ENDIAN    4321
  86
  87 #define __BYTE_ORDER __LITTLE_ENDIAN
  88
  89 /* Define ALIASNAME as a strong alias for NAME.  */
  90 #define strong_alias(name, aliasname) _strong_alias(name, aliasname)
  91 #define _strong_alias(name, aliasname) \
  92   extern __typeof (name) aliasname __attribute__ ((alias (#name)));