gcc/testsuite/gcc.c-torture/compile/20080806-1.c

   1 /* This used to ICE on s390x due to a reload bug.  */
   2
   3 #if defined(STACK_SIZE) && (STACK_SIZE < 65536)
   4   #define BYTES 64
   5 #else
   6   #define BYTES 65400
   7 #endif
   8
   9 int gl2;
  10 typedef __SIZE_TYPE__ size_t;
  11
  12 extern void *memcpy (void *dest, const void *src, size_t n);
  13
  14 void
  15 f1 ()
  16 {
  17   int i2;
  18   unsigned char bf[BYTES];
  19
  20   for (i2 = 0; i2 < 3; i2++)
  21     {
  22       unsigned char *p2 = bf;
  23       unsigned char *p3 = ((void *) 0);
  24       unsigned short ctf2;
  25
  26       p2 += sizeof (short);
  27
  28       for (ctf2 = 0; ctf2 < 3; ctf2++)
  29         {
  30           if (ctf2 == 1)
  31             {
  32               unsigned short of = p2 - bf - 6;
  33               unsigned short *ofp = (unsigned short *) &of;
  34               memcpy (p3, ofp, sizeof (short));
  35             }
  36
  37           if (gl2 == 1)
  38             p2 += 3;
  39         }
  40     }
  41 }