gcc/testsuite/gcc.target/avr/torture/sat-ullk-plus-minus.c

   1 /* { dg-do run } */
   2 /* { dg-options "-std=gnu99 -fwrapv" } */
   3
   4 #include "fix-types.h"
   5
   6 extern void abort (void);
   7 extern void exit (int);
   8
   9 typedef unsigned long long _Accum fx_t;
  10 typedef unsigned long long _Sat _Accum satfx_t;
  11 typedef unsigned long long intfx_t;
  12
  13 US_LFUN (us_add, +, fx_t, ullk, >)
  14 US_LFUN (us_sub, -, fx_t, ullk, <)
  15
  16 #define VAL(N, X)                               \
  17   __attribute__((noinline,noclone))             \
  18   satfx_t us_add2_##N (satfx_t a)               \
  19   {                                             \
  20     return us_add_ullk (a, X##P##-##48ullk);    \
  21   }                                             \
  22   __attribute__((noinline,noclone))             \
  23   satfx_t us_add_##N (satfx_t a)                \
  24   {                                             \
  25     return a + X##P##-##48ullk;                 \
  26   }                                             \
  27   __attribute__((noinline,noclone))             \
  28   satfx_t us_sub2_##N (satfx_t a)               \
  29   {                                             \
  30     return us_sub_ullk (a, X##P##-##48ullk);    \
  31   }                                             \
  32   __attribute__((noinline,noclone))             \
  33   satfx_t us_sub_##N (satfx_t a)                \
  34   {                                             \
  35     return a - X##P##-##48ullk;                 \
  36   }
  37 #include "vals-ullk.def"
  38 #undef VAL
  39
  40 satfx_t (* __flash const fun[])(satfx_t) =
  41 {
  42 #define VAL(N, X)                               \
  43   us_add_##N, us_add2_##N,                      \
  44   us_sub_##N, us_sub2_##N,
  45 #include "vals-ullk.def"
  46 #undef VAL
  47 };
  48
  49
  50 const volatile __flash intfx_t vals[] =
  51   {
  52     0, -1, 1, -2, 2, -127, -128, -129,
  53     0x7f, 0x80, 0x81, 0x100,
  54     0x4000000000000000, 0x3e80000000000000, 0x3f80000000000000,
  55     0x7ffffffffffffffe, 0x7fffffffffffffff, 0x7f80000000000000,
  56     0x7f7f7f7f7f7f7f7f, 0x7f81000000000080, 0x7f00000080000000,
  57     0x7f00000000000001,
  58     0x8000000000000000, 0x8000000000000001, 0x8080808080808080,
  59     0x8081000000000000, 0x80ffffffffffffff, 0x80fffffffffffffe,
  60     0x8100000000000000, 0x8180000000000000, 0x818000000000000,
  61     0xff00000000000000, 0xffffffffffffff01, 0xffffffffffffff80,
  62     0xffffffffffffff7f, 0xff80ff80ff80ff80
  63   };
  64
  65
  66 int main (void)
  67 {
  68   for (unsigned int i = 0; i < sizeof (vals) / sizeof (*vals); i++)
  69     {
  70       satfx_t a, f1, f2;
  71       intfx_t val = vals[i];
  72       __builtin_memcpy (&a, &val, sizeof (satfx_t));
  73       for (unsigned int f = 0; f < sizeof (fun) / sizeof (*fun); f += 2)
  74         {
  75           if (fun[f](a) != fun[f+1](a))
  76             abort();
  77         }
  78     }
  79
  80   exit (0);
  81   return 0;
  82 }