gcc/testsuite/gcc.c-torture/execute/pr56962.c

   1 /* PR tree-optimization/56962 */
   2
   3 extern void abort (void);
   4 long long v[144];
   5
   6 __attribute__((noinline, noclone)) void
   7 bar (long long *x)
   8 {
   9   if (x != &v[29])
  10     abort ();
  11 }
  12
  13 __attribute__((noinline, noclone)) void
  14 foo (long long *x, long y, long z)
  15 {
  16   long long a, b, c;
  17   a = x[z * 4 + y * 3];
  18   b = x[z * 5 + y * 3];
  19   c = x[z * 5 + y * 4];
  20   x[y * 4] = a;
  21   bar (&x[z * 5 + y]);
  22   x[z * 5 + y * 5] = b + c;
  23 }
  24
  25 int
  26 main ()
  27 {
  28   foo (v, 24, 1);
  29   return 0;
  30 }