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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.c-torture/] [compile/] [20011130-2.c] - Blame information for rev 297

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Line No. Rev Author Line
1 297 jeremybenn
/* This testcase caused infinite loop in life info computation
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   after if conversion on IA-64.  Conditional register dead for
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   pseudo holding sign-extended k was improperly computed,
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   resulting in this pseudo being live at start of bb if it was
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   dead at the end and vice versa; as it was a bb which had edge
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   to itself, this resulted in alternative propagating this basic
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   block forever.  */
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typedef struct {
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  unsigned char a;
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  unsigned char b;
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} S0;
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typedef struct {
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  S0 *c;
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  int d;
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  unsigned int e;
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  unsigned char *f[3];
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  void *g;
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} S1;
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int bar (int, void *);
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int foo (S1 *x, float y)
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{
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  S0 *h;
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  int i, j, k, l, m;
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  float n, o, p;
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  unsigned char *q, *r[3];
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  h = x->c;
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  m = h->a;
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  l = h->b;
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  n = y;
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  o = 0.0;
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  if (x->d == 8)
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    for (j = 0; j < x->e; j++)
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      for (k = 0; k < 3; k++)
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        {
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          n = y;
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          o = 0.0;
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          if (m)
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            q = x->f[k] + x->e - 1 - j;
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          else
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            q = x->f[k] + j;
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          p = (*q - o) * y / (n - o);
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          p = 0.0 > p ? 0.0 : p;
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          p = y < p ? y : p;
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          if (l)
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            p = r[k][(int) p];
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          bar (p, x->g);
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        }
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  return 1;
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}

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