# | Line 586 | Line 586 | getE4() /* E4 -> ADDOP E5 */ | |
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586 | ep2->v.num = -ep2->v.num; | |
587 | return(ep2); | |
588 | } | |
589 | + | if (ep2->type == UMINUS) { /* don't generate -(-E5) */ |
590 | + | efree((char *)ep2); |
591 | + | return(ep2->v.kid); |
592 | + | } |
593 | ep1 = newnode(); | |
594 | ep1->type = UMINUS; | |
595 | addekid(ep1, ep2); |
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