for each of th ebasic blocks , determine the order of execution of operations that gives the smallest number of required registers. Next, stat the number of registers required in each case. (you can assume that all computed values are used outside the basic blocks, so that no assignments can be eliminated)
1) x = a+b; y = c + d; z = x + e
2) w = a-b +c; x = w -d ; y = x-2 ;w = a +b -c ;z = y+d; y = b*c;
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