1  /* { dg-do compile } */
       2  /* { dg-options "-O -mfpmath=sse -msse2" } */
       3  
       4  /* The fact that t1 and t2 are uninitialized is critical.  With them
       5     uninitialized, the register allocator is free to put them in the same
       6     hard register, which results in
       7  
       8  	xmm0 = xmm0 >= xmm0 ? xmm0 : xmm0
       9  
      10     Which is of course a nop, but one for which we would ICE splitting the
      11     pattern.  */
      12     
      13  double out;
      14  
      15  static void foo(void)
      16  {
      17      double t1, t2, t3, t4;
      18      
      19      t4 = t1 >= t2 ? t1 : t2;
      20      t4 = t4 >= t3 ? t4 : t3;
      21      out = t4;
      22  }