1  /* Copyright (C) 2003  Free Software Foundation.
       2     Check that size-optimizations for move insns (specifically peephole
       3     optimizations) aren't applied to volatile objects in the CRIS port.
       4     Origin: Hans-Peter Nilsson.  */
       5  /* { dg-do compile { target cris-*-* } } */
       6  /* { dg-final { scan-assembler-not {movu\...\[} } } */
       7  /* { dg-final { scan-assembler-not {move\.[^d].\[} } } */
       8  /* { dg-final { scan-assembler-not {and\.[^d].\[} } } */
       9  /* { dg-final { scan-assembler-not {or\.[^d].\[} } } */
      10  
      11  static const unsigned long c = 0x0000FF00;
      12  unsigned long
      13  a1 (void)
      14  {
      15    unsigned long m;
      16    m = *(volatile unsigned long*) 0xb00000c8;
      17    m &= c;
      18    return m;
      19  }
      20  extern volatile unsigned long xx;
      21  unsigned long
      22  a2 (void)
      23  {
      24    unsigned long m;
      25    m = xx;
      26    m &= c;
      27    return m;
      28  }
      29  extern volatile unsigned long yy[];
      30  unsigned long
      31  a3 (void)
      32  {
      33    unsigned long m;
      34    m = yy[3];
      35    m &= 0xfe00;
      36    return m;
      37  }
      38  unsigned long
      39  ac1 (void)
      40  {
      41    unsigned long m;
      42    m = *(volatile unsigned long*) 0xb00000c8;
      43    m &= 0xfe00;
      44    return m;
      45  }
      46  extern volatile unsigned long xx;
      47  unsigned long
      48  ac2 (void)
      49  {
      50    unsigned long m;
      51    m = xx;
      52    m &= 0xfe00;
      53    return m;
      54  }
      55  extern volatile unsigned long yy[];
      56  unsigned long
      57  ac3 (void)
      58  {
      59    unsigned long m;
      60    m = yy[3];
      61    m &= 0xfe00;
      62    return m;
      63  }
      64  extern volatile unsigned long yy[];
      65  unsigned long
      66  oc3 (void)
      67  {
      68    unsigned long m;
      69    m = yy[3];
      70    m |= ~0xf;
      71    return m;
      72  }