static bool
gimple_match_and_simplify (code_helper code, tree type, tree op0, tree op1,
			   tree op2, code_helper * res_code, tree * res_ops,
			   gimple_seq * seq, tree (*valueize) (tree))
{
  if (code == MINUS_EXPR)
    {
      {
	tree o1 = op0;
	if (TREE_CODE (o1) == SSA_NAME)
	  {
	    gimple def_stmt1 = SSA_NAME_DEF_STMT (o1);
	    if (is_gimple_assign (def_stmt1)
		&& gimple_assign_rhs_code (def_stmt1) == PLUS_EXPR)
	      {
		{
		  tree o2 = gimple_assign_rhs1 (def_stmt1);
		  if ((o2 = do_valueize (valueize, o2)) != 0)
		    {
		      {
			tree o3 = gimple_assign_rhs2 (def_stmt1);
			if ((o3 = do_valueize (valueize, o3)) != 0)
			  {
			    {
			      tree o4 = op1;
			      if (o4 == o3)
				{
/* simplify 0 */
				  {
				    tree captures[4] = { };
				    captures[0] = o2;
				    captures[1] = o3;
				    res_ops[0] = captures[0];
				    *res_code = TREE_CODE (res_ops[0]);
				    return true;
				  }
				}
			    }
			  }
		      }
		    }
		}
	      }
	  }
      }
    }
  return false;
}