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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc1/] [gcc/] [testsuite/] [gcc.dg/] [20020426-2.c] - Blame information for rev 338

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Line No. Rev Author Line
1 298 jeremybenn 
/* PR optimization/6475
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   Distilled from zlib sources.  */
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/* { dg-do run } */
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/* { dg-options "-O2" } */
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/* { dg-options "-O2 -frename-registers -fomit-frame-pointer -fPIC -mtune=i686" { target { { i?86-*-* x86_64-*-* } && { ilp32 && fpic } } } } */
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extern void exit (int);
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typedef struct
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{
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  union
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  {
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    struct
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    {
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      unsigned char a3;
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      unsigned char a4;
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    } a2;
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    unsigned int a5;
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  } a0;
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  unsigned int a1;
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} A;
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static int
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foo (unsigned int *b, unsigned int n, unsigned int s, const unsigned int *d,
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     const unsigned int *e, A **t, unsigned int *m, A *hp, unsigned int *hn,
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     unsigned int *v)
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{
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  unsigned int a, c[15 + 1], f;
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  int g, h;
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  unsigned int i, j, k;
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  int l;
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  unsigned int ee;
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  unsigned int *p;
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  A *q, r, *u[15];
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  int w;
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  unsigned int x[15 + 1], *xx;
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  int y;
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  unsigned int z;
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  p = c;
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  *p++ = 0; *p++ = 0; *p++ = 0; *p++ = 0;
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  *p++ = 0; *p++ = 0; *p++ = 0; *p++ = 0;
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  *p++ = 0; *p++ = 0; *p++ = 0; *p++ = 0;
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  *p++ = 0; *p++ = 0; *p++ = 0; *p++ = 0;
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  p = b;
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  i = n;
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  do
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    c[*p++]++;
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  while (--i);
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  if (c[0] == n)
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    {
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      *t = (A *) 0;
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      *m = 0;
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      return 0;
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    }
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  l = *m;
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  for (j = 1; j <= 15; j++)
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    if (c[j])
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      break;
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  k = j;
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  if ((unsigned int) l < j)
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    l = j;
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  for (i = 15; i; i--)
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    if (c[i])
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      break;
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  g = i;
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  if ((unsigned int) l > i)
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    l = i;
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  *m = l;
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  for (y = 1 << j; j < i; j++, y <<= 1)
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    if ((y -= c[j]) < 0)
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      return -3;
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  if ((y -= c[i]) < 0)
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    return -3;
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  c[i] += y;
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  x[1] = j = 0;
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  p = c + 1;
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  xx = x + 2;
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  while (--i)
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    *xx++ = (j += *p++);
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  p = b;
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  i = 0;
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  do
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    if ((j = *p++) != 0)
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      v[x[j]++] = i;
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  while (++i < n);
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  n = x[g];
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  x[0] = i = 0;
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  p = v;
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  h = -1;
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  w = -l;
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  u[0] = (A *) 0;
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  q = (A *) 0;
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  z = 0;
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  for (; k <= g; k++)
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    {
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      a = c[k];
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      while (a--)
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        {
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          while (k > w + l)
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            {
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              h++;
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              w += l;
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              z = g - w;
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              z = z > (unsigned int) l ? l : z;
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              if ((f = 1 << (j = k - w)) > a + 1)
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                {
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                  f -= a + 1;
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                  xx = c + k;
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                  if (j < z)
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                    while (++j < z)
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                      {
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                        if ((f <<= 1) <= *++xx)
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                          break;
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                        f -= *xx;
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                      }
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                }
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              z = 1 << j;
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              if (*hn + z > 1440)
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                return -3;
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              u[h] = q = hp + *hn;
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              *hn += z;
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              if (h)
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                {
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                  x[h] = i;
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                  r.a0.a2.a4 = (unsigned char) l;
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                  r.a0.a2.a3 = (unsigned char) j;
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                  j = i >> (w - l);
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                  r.a1 = (unsigned int) (q - u[h - 1] - j);
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                  u[h - 1][j] = r;
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                }
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              else
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                *t = q;
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            }
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          r.a0.a2.a4 = (unsigned char) (k - w);
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          if (p >= v + n)
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            r.a0.a2.a3 = 128 + 64;
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          else if (*p < s)
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            {
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              r.a0.a2.a3 = (unsigned char) (*p < 256 ? 0 : 32 + 64);
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              r.a1 = *p++;
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            }
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          else
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            {
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              r.a0.a2.a3 = (unsigned char) (e[*p - s] + 16 + 64);
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              r.a1 = d[*p++ - s];
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            }
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          f = 1 << (k - w);
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          for (j = i >> w; j < z; j += f)
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            q[j] = r;
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          for (j = 1 << (k - 1); i & j; j >>= 1)
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            i ^= j;
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          i ^= j;
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          ee = (1 << w) - 1;
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          while ((i & ee) != x[h])
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            {
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              h--;
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              w -= l;
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              ee = (1 << w) - 1;
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            }
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        }
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    }
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  return y != 0 && g != 1 ? (-5) : 0;
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}
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unsigned int a[19] = { 3, 4, 0, 2, 2, [17] = 3, 3 };
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unsigned int d[19];
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A h[1440];
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int
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main (void)
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{
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  unsigned int b = 0, c = 0;
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  A *e = 0;
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  foo (a, 19, 19, 0, 0, &e, &b, h, &c, d);
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  exit (0);
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}

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