1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-optimized-raw" } */
       3  
       4  int f(unsigned a,unsigned b){
       5      a *= 3;
       6      b *= 3;
       7      return a == b;
       8  }
       9  
      10  /* { dg-final { scan-tree-dump-not "mult_expr" "optimized" } } */