1  /* Check if system supports SIMD.  Copied from gcc.dg/vect/tree-vect.h.  */
       2  #include <signal.h>
       3  
       4  extern "C" void abort (void);
       5  extern "C" void exit (int);
       6  
       7  void
       8  sig_ill_handler (int sig)
       9  {
      10    exit(0);
      11  }
      12  
      13  void check_vect (void)
      14  {
      15    signal(SIGILL, sig_ill_handler);
      16  #if defined(__i386__) || defined(__x86_64__)
      17    /* SSE2 instruction: movsd %xmm0,%xmm0 */
      18    asm volatile (".byte 0xf2,0x0f,0x10,0xc0");
      19  #elif defined(__sparc__)
      20    asm volatile (".word\t0x81b007c0");
      21  #endif
      22    signal (SIGILL, SIG_DFL);
      23  }