1  /* PR rtl-optimization/48721 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O -foptimize-sibling-calls -fsched2-use-superblocks -fschedule-insns2 -mtune=core2" } */
       4  
       5  extern unsigned char a[];
       6  extern int b[], d[], e[], f[], g[], *h[], m[], *n[], o[];
       7  extern char c[];
       8  
       9  struct S
      10  {
      11    unsigned char s1;
      12    int s2, s3, s4, s5, s6, s7, s8;
      13  };
      14  
      15  __attribute__((noinline, noclone)) int
      16  foo (int x)
      17  {
      18    return 0;
      19  }
      20  
      21  int
      22  bar (int x, struct S *y)
      23  {
      24    int z;
      25    switch (x)
      26      {
      27      case 1:
      28      case 2:
      29        {
      30  	int t2, t4, t5, t6, t7, t8;
      31  	z = o[y->s8 * 6];
      32  	t8 = *n[m[x] * 5];
      33  	t4 = *h[y->s7];
      34  	t7 = z;
      35  	z = g[f[x] + y->s6];
      36  	t6 = e[y->s5];
      37  	t5 = d[c[x] + y->s3 * 17];
      38  	if (z)
      39  	  t2 = b[z];
      40  	if (a[z] != y->s1)
      41  	  return foo (x);
      42  	y->s8 = t8;
      43  	y->s4 = t4;
      44  	y->s7 = t7;
      45  	y->s6 = t6;
      46  	y->s5 = t5;
      47  	y->s2 = t2;
      48        }
      49      }
      50    return 0;
      51  }