1  /* PR rtl-optimization/46212 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O3 -funroll-loops" } */
       4  /* { dg-options "-O3 -funroll-loops -march=i386" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
       5  /* { dg-require-effective-target int32plus } */
       6  
       7  static inline unsigned
       8  foo (void *x)
       9  {
      10    unsigned y = *(volatile unsigned *) (x);
      11    return (y >> 24) | ((y >> 8) & 0xff00) | ((y & 0xff00) << 8) | (y << 24);
      12  }
      13  
      14  void
      15  bar (void *x, void *y, int z)
      16  {
      17    unsigned c;
      18    while (z--)
      19      {
      20        c = foo (y);
      21        *(unsigned *) x = (c & 0xf80000) >> 9 | (c & 0xf800) >> 6
      22  			| (c & 0xf8) >> 3 | (c & 0x80000000) >> 16;
      23      }
      24  }