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 o2 = op0;
    tree t0 = NULL_TREE;
    tree t1 = NULL_TREE;
    if (TREE_CODE (o2) == SSA_NAME)
      {
        gimple def_stmt = SSA_NAME_DEF_STMT (o2);
        if (is_gimple_assign (def_stmt) &&
        (gimple_assign_rhs_code (def_stmt) == PLUS_EXPR
         || CONVERT_EXPR_CODE_P (gimple_assign_rhs_code (def_stmt))))
          {
        t0 = gimple_assign_rhs1 (def_stmt);
        if (do_valueize (valueize, t0))
          {
            t1 = gimple_assign_rhs2 (def_stmt);
            if (do_valueize (valueize, t1))
              {
            {
              tree o3 = t0;
              {
                tree o4 = t1;
                {
                  tree o5 = op1;
                  if (o5 == o4)
                {
                  /* simplify 0 */
                  {
                    tree captures[4] = { };
                    captures[0] = o3;
                    captures[1] = o4;
                    res_ops[0] = captures[0];
                    *res_code = TREE_CODE (res_ops[0]);
                    return true;
                  }
                }
                }
              }
            }
              }
          }
          }
      }
      }
    }
  return false;
}