+ && (finalize_syms
+ || frag_offset_fixed_p (frag_left, frag_right, &frag_off)
+ || (op == O_gt
+ && frag_gtoffset_p (left, frag_left,
+ right, frag_right, &frag_off)))
+ && (seg_left != reg_section || left == right)
+ && (seg_left != undefined_section || add_symbol == op_symbol)))
+ {
+ if ((seg_left == absolute_section && left == 0)
+ || (seg_right == absolute_section && right == 0))
+ {
+ if (op == O_bit_exclusive_or || op == O_bit_inclusive_or)
+ {
+ if (!(seg_right == absolute_section && right == 0))
+ {
+ seg_left = seg_right;
+ left = right;
+ add_symbol = op_symbol;
+ orig_add_symbol = expressionP->X_op_symbol;
+ }
+ op = O_symbol;
+ break;
+ }
+ else if (op == O_left_shift || op == O_right_shift)
+ {
+ if (!(seg_left == absolute_section && left == 0))
+ {
+ op = O_symbol;
+ break;
+ }
+ }
+ else if (op != O_multiply
+ && op != O_bit_or_not && op != O_bit_and)
+ return 0;
+ }
+ else if (op == O_multiply
+ && seg_left == absolute_section && left == 1)
+ {
+ seg_left = seg_right;
+ left = right;
+ add_symbol = op_symbol;
+ orig_add_symbol = expressionP->X_op_symbol;
+ op = O_symbol;
+ break;
+ }
+ else if ((op == O_multiply || op == O_divide)
+ && seg_right == absolute_section && right == 1)
+ {
+ op = O_symbol;
+ break;
+ }
+ else if (!(left == right
+ && ((seg_left == reg_section && seg_right == reg_section)
+ || (seg_left == undefined_section
+ && seg_right == undefined_section
+ && add_symbol == op_symbol))))
+ return 0;
+ else if (op == O_bit_and || op == O_bit_inclusive_or)
+ {
+ op = O_symbol;
+ break;
+ }
+ else if (op != O_bit_exclusive_or && op != O_bit_or_not)
+ return 0;
+ }