1  /* { dg-do compile } */
       2  /* { dg-options "-O" } */
       3  /* { dg-bogus "internal compiler error" "ICE" { target *-*-* } 0 } */
       4  
       5  #undef SKIP
       6  #define ASMDECL __asm (REG);
       7  #define CLOBBER_LIST : REG
       8  #define INP_CLOBBER_LIST : CLOBBER_LIST
       9  #if defined (__alpha__)
      10  # define REG "$1"
      11  #elif defined (__CRIS__) || defined (__sh__)
      12  # define REG "r10"
      13  #elif defined (__hppa__)
      14  # define REG "%r10"
      15  #elif defined (__i386__)
      16  # define REG "%eax"
      17  #elif defined (__MMIX__)
      18  # define REG "$8"
      19  #elif defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) \
      20          || defined (__POWERPC__) || defined (PPC) || defined (_IBMR2)
      21  # define REG "6"
      22  #elif defined (__x86_64__)
      23  # define REG "rax"
      24  #elif defined (__m68k__)
      25  # define REG "%d0"
      26  #else
      27  /* Make this test harmless for any target not recognized above.  */
      28  # define SKIP 1
      29  #endif
      30  
      31  #ifndef SKIP
      32  
      33  struct A
      34  {
      35    int a;
      36  };
      37  
      38  struct B
      39  {
      40    struct A b[3];
      41  };
      42  
      43  struct C
      44  {
      45    struct B c;
      46  };
      47  
      48  void bug (void)
      49  {
      50    register char* dst ASMDECL;
      51    __asm__ ("":"=g"(*dst): : REG);
      52  }
      53  
      54  /* The tree optimizers currently prevent us from finding an overlap -
      55     we end up using a copy of dst rather than dst.
      56     But at least make sure we don't get an ICE.  */
      57  void bug2 (void)
      58  {
      59    register char* dst ASMDECL;
      60    __asm__ ("": :"g"(*dst) CLOBBER_LIST);
      61  }
      62  
      63  void
      64  foo (void)
      65  {
      66    register struct C *dst ASMDECL;
      67    __asm__ ("" : "=g"(dst->c.b[1].a) INP_CLOBBER_LIST);
      68  }
      69  
      70  #else
      71  
      72  int main ()
      73  {
      74    return 0;
      75  }
      76  
      77  #endif
      78