Consider the following piece of C code:

The MIPS code corresponding to the above fragment is:

a.

When an instruction in a later iteration of a loop depends upon a data value

produced in an earlier iteration of the same loop, we say that there is a loop

carried dependence between iterations of the loop. Identify the loop carried

dependences in the above code. Identify the dependent program variable and assembly-level registers. You can ignore the loop induction variable j.

b. Re-write the assembly code above so that the loop is unrolled by 4 iterations.

for (j = 2; j