dist/gcc/optabs.c

6807   enum rtx_code reverse_code;
6831       op->reverse_code = MINUS;
6840       op->reverse_code = PLUS;
6849       op->reverse_code = XOR;
6858       op->reverse_code = UNKNOWN;
6867       op->reverse_code = UNKNOWN;
6876       op->reverse_code = UNKNOWN;
7042   if (after || unused_result || optab.reverse_code != UNKNOWN)
7058 	    code = optab.reverse_code;
7141 	  && (after || unused_result || optab.reverse_code != UNKNOWN))
7145 	    code = optab.reverse_code;