[Bug tree-optimization/82714] [7 Regression] ICE in vect_transform_stmt

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82714

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:

$ cat pr82714.c
enum
{
  a, b, c, d,  e,  f,  g,  h,  j,  k
};

int l;
void m (int *s)
{
  short n, o, p;
  float(*q)[k];
  int r, i;
  while (l > 0)
    r = l;
  for (;;)
    {
      i = 0;
      for (; i < r; i++)
        {
          {
            float ab = q[i][a];
            int i = ab;
            p = i;
          }
          ((short *) s)[0] = p;
          {
            float ab = q[i][b];
            int i = ab;
            o = i;
          }
          ((short *) s)[1] = o;
          {
            float ab = q[i][f];
            int i = ab;
            n = i;
          }
          ((short *) s)[2] = n;
          float ab = q[i][g];
          int i = ab;
          ((short *) s)[3] = i;
          s = (short *) s + 4;
        }
    }
}