Question: A compiler designer is trying to decide between two code sequences for a particular machine. Based on the hardware implementation, there are three different classes

A compiler designer is trying to decide between two code sequences for a particular machine. Based on the hardware implementation, there are three different classes of instructions: Class A, Class B, and Class C.

constant trade-off

Inst. class A (1 cycle)

Inst. class B (2 cycles)

Inst. class C (3 cycles)

first code sequence

200

100

200

second sequence

400

100

100

Which sequence will be faster? How much? What is the CPI for each sequence?

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