1  /* Make sure the doloop optimization is done for this loop. */
       2  /* { dg-do compile { target powerpc*-*-* } } */
       3  /* { dg-options "-O2" } */
       4  /* { dg-final { scan-assembler "bdn" } } */
       5  extern int a[];
       6  int foo(int w) {
       7    int n = w;
       8    while (n >= 512)
       9      {
      10      a[n] = 42;
      11      n -= 256;
      12      }
      13    }