[Bug tree-optimization/33834] [4.3 Regression] ICE in vect_get_vec_def_for_operand, at tree-vect-transform.c:1829

["tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from tbm at cyrius dot com  2007-10-21 06:25 -------
Here's another one (requires -O3):

/* Testcase by Martin Michlmayr <tbm@cyrius.com> */

extern int sscanf (__const char *__restrict __s,
                  __const char *__restrict __format, ...);
unsigned char got_elevation_pattern;
struct site
{
  float antenna_pattern[361][1001];
}
LR;
void
LoadPAT (char *filename)
{
  int x, y;
  char string[255];
  float elevation, amplitude, elevation_pattern[361][1001];
  for (x = 0; filename[x] != '.' ; x++)
    sscanf (string, "%f %f", &elevation, &amplitude);
  for (y = 0; y <= 1000; y++)
  {
    if (got_elevation_pattern)
      elevation = elevation_pattern[x][y];
    else
      elevation = 1.0;
    LR.antenna_pattern[x][y] = elevation;
  }
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33834