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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [960416-1.c] - Blame information for rev 414

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Line No. Rev Author Line
1 297 jeremybenn
typedef unsigned long int st;
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typedef unsigned long long dt;
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typedef union
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{
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  dt d;
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  struct
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  {
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    st h, l;
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  }
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  s;
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} t_be;
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typedef union
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{
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  dt d;
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  struct
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  {
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    st l, h;
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  }
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  s;
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} t_le;
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#define df(f, t) \
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int \
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f (t afh, t bfh) \
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{ \
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  t hh; \
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  t hp, lp, dp, m; \
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  st ad, bd; \
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  int s; \
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  s = 0; \
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  ad = afh.s.h - afh.s.l; \
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  bd = bfh.s.l - bfh.s.h; \
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  if (bd > bfh.s.l) \
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    { \
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      bd = -bd; \
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      s = ~s; \
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    } \
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  lp.d = (dt) afh.s.l * bfh.s.l; \
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  hp.d = (dt) afh.s.h * bfh.s.h; \
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  dp.d = (dt) ad *bd; \
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  dp.d ^= s; \
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  hh.d = hp.d + hp.s.h + lp.s.h + dp.s.h; \
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  m.d = (dt) lp.s.h + hp.s.l + lp.s.l + dp.s.l; \
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  return hh.s.l + m.s.l; \
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}
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df(f_le, t_le)
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df(f_be, t_be)
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main ()
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{
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  t_be x;
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  x.s.h = 0x10000000U;
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  x.s.l = 0xe0000000U;
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  if (x.d == 0x10000000e0000000ULL
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      && f_be ((t_be) 0x100000000ULL, (t_be) 0x100000000ULL) != -1)
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    abort ();
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  if (x.d == 0xe000000010000000ULL
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      && f_le ((t_le) 0x100000000ULL, (t_le) 0x100000000ULL) != -1)
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    abort ();
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  exit (0);
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}

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